Canvas.java revision 0965a3244b4c3009d08db2e084cdcb681ef66d26
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.graphics; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.GraphicsOperations; 20f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannableString; 21f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannedString; 22f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.TextUtils; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.microedition.khronos.opengles.GL; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Canvas class holds the "draw" calls. To draw something, you need 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4 basic components: A Bitmap to hold the pixels, a Canvas to host 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the draw calls (writing into the bitmap), a drawing primitive (e.g. Rect, 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Path, text, Bitmap), and a paint (to describe the colors and styles for the 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing). 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Canvas { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // assigned in constructors, freed in finalizer 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int mNativeCanvas; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Our native canvas can be either a raster, gl, or picture canvas. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If we are raster, then mGL will be null, and mBitmap may or may not be 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project present (our default constructor creates a raster canvas but no 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project java-bitmap is). If we are a gl-based, then mBitmap will be null, and 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGL will not be null. Thus both cannot be non-null, but its possible 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for both to be null. 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Bitmap mBitmap; // if not null, mGL must be null 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // optional field set by the caller 47ce0537b80087a6225273040a987414b1dd081aa0Romain Guy private DrawFilter mDrawFilter; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 50ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * @hide 51ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 52ce0537b80087a6225273040a987414b1dd081aa0Romain Guy protected int mDensity = Bitmap.DENSITY_NONE; 530d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 54ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 55ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Used to determine when compatibility scaling is in effect. 56ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 57ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * @hide 58ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 59ce0537b80087a6225273040a987414b1dd081aa0Romain Guy protected int mScreenDensity = Bitmap.DENSITY_NONE; 6011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Used by native code 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings({"UnusedDeclaration"}) 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mSurfaceFormat; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating left-to-right run direction. 67f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 68f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 69f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_LTR = 0; 70f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 71f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 72f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating right-to-left run direction. 73f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 74f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 75f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_RTL = 1; 76f61970fc79e9c5cf340fa942597628242361864aRomain Guy 77f61970fc79e9c5cf340fa942597628242361864aRomain Guy // Maximum bitmap size as defined in Skia's native code 78f61970fc79e9c5cf340fa942597628242361864aRomain Guy // (see SkCanvas.cpp, SkDraw.cpp) 79f61970fc79e9c5cf340fa942597628242361864aRomain Guy private static final int MAXMIMUM_BITMAP_SIZE = 32766; 80f61970fc79e9c5cf340fa942597628242361864aRomain Guy 814a317db43d2bbc992284dd1f651751f13734d017Romain Guy // This field is used to finalize the native Canvas properly 824a317db43d2bbc992284dd1f651751f13734d017Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 83e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final CanvasFinalizer mFinalizer; 84e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 85e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private static class CanvasFinalizer { 86e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final int mNativeCanvas; 87e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 88e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy public CanvasFinalizer(int nativeCanvas) { 89e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mNativeCanvas = nativeCanvas; 90e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 91e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 92e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy @Override 93e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy protected void finalize() throws Throwable { 943b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy try { 953b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy if (mNativeCanvas != 0) { 963b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy finalizer(mNativeCanvas); 973b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } 983b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } finally { 993b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy super.finalize(); 100e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 101e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 102e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 103e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 104f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct an empty raster canvas. Use setBitmap() to specify a bitmap to 10696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * draw into. The initial target density is {@link Bitmap#DENSITY_NONE}; 10796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * this will typically be replaced when a target bitmap is set for the 10896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * canvas. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas() { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0 means no native bitmap 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(0); 1132fc941e4650d618ff6e122f28b616d9032ffa134Romain Guy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified bitmap to draw into. The bitmap 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be mutable. 11996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 12096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the given 12196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap's density. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(Bitmap bitmap) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException( 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Immutable bitmap passed to Canvas constructor"); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(bitmap.ni()); 132e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 13496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 137163935113919a184122b8b3bd672ef08c8df65dcRomain Guy Canvas(int nativeCanvas) { 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeCanvas == 0) { 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = nativeCanvas; 142e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(nativeCanvas); 14396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 145163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 147163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Returns null. 14896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 149163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @deprecated This method is not supported and should not be invoked. 1503b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * 1513b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * @hide 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 153cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne @Deprecated 154163935113919a184122b8b3bd672ef08c8df65dcRomain Guy protected GL getGL() { 155163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return null; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1572d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy 1582d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy /** 1592d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Indicates whether this Canvas uses hardware acceleration. 1602d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1612d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Note that this method does not define what type of hardware acceleration 1622d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * may or may not be used. 1632d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1642d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @return True if drawing operations are hardware accelerated, 1652d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * false otherwise. 1662d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy */ 1672d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy public boolean isHardwareAccelerated() { 168163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return false; 169caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed } 170163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Specify a bitmap for the canvas to draw into. As a side-effect, also 17396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * updates the canvas's target density to match that of the bitmap. 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 17696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 17796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #setDensity(int) 17896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #getDensity() 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBitmap(Bitmap bitmap) { 181163935113919a184122b8b3bd672ef08c8df65dcRomain Guy if (isHardwareAccelerated()) { 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Can't set a bitmap device on a GL canvas"); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1850965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy int pointer = 0; 1860965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy if (bitmap != null) { 1870965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy if (!bitmap.isMutable()) { 1880965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throw new IllegalStateException(); 1890965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 1900965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throwIfRecycled(bitmap); 1910965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy mDensity = bitmap.mDensity; 1920965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy pointer = bitmap.ni(); 1930965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 1940965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy 1950965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy native_setBitmap(mNativeCanvas, pointer); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the viewport dimensions if this canvas is GL based. If it is not, 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this method is ignored and no exception is thrown. 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 203163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param width The width of the viewport 204163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param height The height of the viewport 2052d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 206163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewport(int width, int height) { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the device that the current layer draws into is opaque 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. does not support per-pixel alpha). 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the device that the current layer draws into is opaque 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean isOpaque(); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the width of the current drawing layer 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width of the current drawing layer 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getWidth(); 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the height of the current drawing layer 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the height of the current drawing layer 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getHeight(); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Returns the target density of the canvas. The default density is 23596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * derived from the density of its backing bitmap, or 23696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} if there is not one.</p> 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return Returns the current target density of the canvas, which is used 23996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 24211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 24511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Specifies the density for this Canvas' backing bitmap. This modifies 25096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * the target density of the canvas itself, as well as the density of its 25196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * backing bitmap via {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}. 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @param density The new target density of the canvas, which is used 25496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. Use 25596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} to disable bitmap scaling. 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 25811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBitmap != null) { 26211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mBitmap.setDensity(density); 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2670d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn /** @hide */ 2680d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn public void setScreenDensity(int density) { 2690d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity = density; 2700d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn } 271f61970fc79e9c5cf340fa942597628242361864aRomain Guy 272f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 273f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed width for bitmaps drawn with this canvas. 274f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap wider than this value will result 275f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 276f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 277f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapHeight() 278f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 279f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapWidth() { 280f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 281f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 2820d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 283f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 284f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed height for bitmaps drawn with this canvas. 285f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap taller than this value will result 286f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 287f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 288f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapWidth() 289f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 290f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapHeight() { 291f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 292f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 293f61970fc79e9c5cf340fa942597628242361864aRomain Guy 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the SAVE_FLAG constants must match their native equivalents 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current matrix when restore() is called */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MATRIX_SAVE_FLAG = 0x01; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current clip when restore() is called */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_SAVE_FLAG = 0x02; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to per-pixel alpha */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HAS_ALPHA_LAYER_SAVE_FLAG = 0x04; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to 8-bits per color component */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FULL_COLOR_LAYER_SAVE_FLAG = 0x08; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** clip against the layer's bounds */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_TO_LAYER_SAVE_FLAG = 0x10; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore everything when restore() is called */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALL_SAVE_FLAG = 0x1F; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Saves the current matrix and clip onto a private stack. Subsequent 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calls to translate,scale,rotate,skew,concat or clipRect,clipPath 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will all operate as usual, but when the balancing call to restore() 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is made, those calls will be forgotten, and the settings that existed 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * before the save() will be reinstated. 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Based on saveFlags, can save the current matrix and clip onto a private 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stack. Subsequent calls to translate,scale,rotate,skew,concat or 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect,clipPath will all operate as usual, but when the balancing 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * call to restore() is made, those calls will be forgotten, and the 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * settings that existed before the save() will be reinstated. 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags flag bits that specify which parts of the Canvas state 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to save/restore 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(int saveFlags); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds May be null. The maximum size the offscreen bitmap 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needs to be (in local coordinates) 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint This is copied, and is applied to the offscreen when 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * restore() is called. 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this save() 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, bounds, 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper version of saveLayer() that takes 4 values rather than a RectF. 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(float left, float top, float right, float bottom, 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint, int saveFlags) { 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, left, top, right, bottom, 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds The maximum size the offscreen bitmap needs to be 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (in local coordinates) 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha to apply to the offscreen when when it is 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawn during restore() 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this call 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha = Math.min(255, Math.max(0, alpha)); 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, bounds, alpha, saveFlags); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for saveLayerAlpha() that takes 4 values instead of a RectF. 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(float left, float top, float right, float bottom, 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int saveFlags) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, left, top, right, bottom, 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha, saveFlags); 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This call balances a previous call to save(), and is used to remove all 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * modifications to the matrix/clip state since the last save call. It is 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an error to call restore() more times than save() was called. 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restore(); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of matrix/clip states on the Canvas' private stack. 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will equal # save() calls - # restore() calls. 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getSaveCount(); 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Efficient way to pop any calls to save() that happened after the save 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count reached saveCount. It is an error for saveCount to be less than 1. 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Example: 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * int count = canvas.save(); 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ... // more calls potentially to save() 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * canvas.restoreToCount(count); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // now the canvas is back in the same state it was before the initial 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // call to save(). 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveCount The save level to restore to. 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restoreToCount(int saveCount); 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified translation 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dx The distance to translate in X 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dy The distance to translate in Y 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void translate(float dx, float dy); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void scale(float sx, float sy); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 444cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param px The x-coord for the pivot point (unchanged by the scale) 445cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param py The y-coord for the pivot point (unchanged by the scale) 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void scale(float sx, float sy, float px, float py) { 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(sx, sy); 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void rotate(float degrees); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void rotate(float degrees, float px, float py) { 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rotate(degrees); 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified skew. 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to skew in X 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to skew in Y 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void skew(float sx, float sy); 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified matrix. 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to preconcatenate with the current matrix 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void concat(Matrix matrix) { 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_concat(mNativeCanvas, matrix.native_instance); 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Completely replace the current matrix with the specified matrix. If the 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix parameter is null, then the current matrix is reset to identity. 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to replace the current matrix with. If it is 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, set the current matrix to identity. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setMatrix(Matrix matrix) { 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setMatrix(mNativeCanvas, 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matrix == null ? 0 : matrix.native_instance); 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return, in ctm, the current transformation matrix. This does not alter 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the matrix in the canvas, but just returns a copy of it. 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getMatrix(Matrix ctm) { 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_getCTM(mNativeCanvas, ctm.native_instance); 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50941030da16856c8869e1e51d4a0405432fa96614eRomain Guy 51041030da16856c8869e1e51d4a0405432fa96614eRomain Guy /** 51141030da16856c8869e1e51d4a0405432fa96614eRomain Guy * Returns a pointer to an internal 4x4 native matrix. The returned 51241030da16856c8869e1e51d4a0405432fa96614eRomain Guy * pointer is a pointer to an array of 16 floats. 51341030da16856c8869e1e51d4a0405432fa96614eRomain Guy * 51441030da16856c8869e1e51d4a0405432fa96614eRomain Guy * @hide 51541030da16856c8869e1e51d4a0405432fa96614eRomain Guy */ 5164a317db43d2bbc992284dd1f651751f13734d017Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 51741030da16856c8869e1e51d4a0405432fa96614eRomain Guy public int getNativeMatrix() { 51841030da16856c8869e1e51d4a0405432fa96614eRomain Guy return 0; 51941030da16856c8869e1e51d4a0405432fa96614eRomain Guy } 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return a new matrix with a copy of the canvas' current transformation 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix. 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Matrix getMatrix() { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m = new Matrix(); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getMatrix(m); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return m; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to intersect with the current clip 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(RectF rect, Region.Op op) { 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(Rect rect, Region.Op op) { 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(RectF rect); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(Rect rect); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(float left, float top, float right, float bottom, 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Region.Op op) { 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, left, top, right, bottom, 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(float left, float top, 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(int left, int top, 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right, int bottom); 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified path. 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to operate on the current clip 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path, Region.Op op) { 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipPath(mNativeCanvas, path.ni(), op.nativeInt); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified path. 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to intersect with the current clip 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path) { 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipPath(path, Region.Op.INTERSECT); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified region. Note that unlike 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region, Region.Op op) { 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRegion(mNativeCanvas, region.ni(), op.nativeInt); 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified region. Note that unlike 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region) { 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipRegion(region, Region.Op.INTERSECT); 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DrawFilter getDrawFilter() { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDrawFilter; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawFilter(DrawFilter filter) { 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter = 0; 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filter != null) { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeFilter = filter.mNativeInt; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawFilter = filter; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetDrawFilter(mNativeCanvas, nativeFilter); 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum EdgeType { 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BW(0), //!< treat edges by just rounding to nearest pixel boundary 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AA(1); //!< treat edges by rounding-out, since they may be antialiased 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType(int nativeInt) { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 699c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 700c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /** 701c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * @hide 702c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 703c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy public final int nativeInt; 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect the rect to compare with the current clip 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type specifies how to treat the edges (BW or antialiased) 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(RectF rect, EdgeType type) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, rect, type.nativeInt); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified path, after being transformed by the 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). Note: for speed it may 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return false even if the path itself might not intersect the clip 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. the bounds of the path intersects, but the path does not). 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to compare with the current clip 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the path should be considered antialiased, 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * affect a larger area (more pixels) than 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-antialiased. 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the path (transformed by the canvas' matrix) 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(Path path, EdgeType type) { 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, path.ni(), type.nativeInt); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to compare with the 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to compare with the current 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to compare with the 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to compare with the 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the rect should be considered antialiased, 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may affect a larger area (more 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels) than non-antialiased. 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(float left, float top, float right, float bottom, 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType type) { 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, left, top, right, bottom, 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project type.nativeInt); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds, returning true if they are non-empty. 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds Return the clip bounds here. If it is null, ignore it but 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still return true if the current clip is non-empty. 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the current clip is non-empty. 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getClipBounds(Rect bounds) { 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_getClipBounds(mNativeCanvas, bounds); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds. 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the clip bounds, or [0, 0, 0, 0] if the clip is empty. 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Rect getClipBounds() { 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect r = new Rect(); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getClipBounds(r); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return r; 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified RGB color, using srcover porterduff mode. 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRGB(int r, int g, int b) { 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRGB(mNativeCanvas, r, g, b); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified ARGB color, using srcover porterduff mode. 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param a alpha component (0..255) of the color to draw onto the canvas 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawARGB(int a, int r, int g, int b) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawARGB(mNativeCanvas, a, r, g, b); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color, using srcover porterduff mode. 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw onto the canvas 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color and porter-duff xfermode. 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw with 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the porter-duff mode to apply to the color 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color, PorterDuff.Mode mode) { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color, mode.nativeInt); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint. This is equivalent (but faster) to drawing an 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * infinitely large rectangle with the specified paint. 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw onto the canvas 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPaint(Paint paint) { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPaint(mNativeCanvas, paint.mNativePaint); 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of points. Each point is centered at the coordinate 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified by pts[], and its diameter is specified by the paint's stroke 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width (as transformed by the canvas' CTM), with special treatment for 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stroke width of 0, which always draws exactly 1 pixel (or at most 4 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if antialiasing is enabled). The shape of the point is controlled by 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the paint's Cap type. The shape is a square, unless the cap type is 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Round, in which case the shape is a circle. 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before starting to draw. 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values to process, after skipping offset 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of them. Since one point uses two values, the number of 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "points" that are drawn is really (count >> 1). 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoints(float[] pts, int offset, int count, 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() that assumes you want to draw the entire array 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPoints(float[] pts, Paint paint) { 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPoints(pts, 0, pts.length, paint); 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() for drawing a single point. 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoint(float x, float y, Paint paint); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a line segment with the specified start and stop x,y coordinates, 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using the specified paint. NOTE: since a line is always "framed", the 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Style is ignored in the paint. 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startX The x-coordinate of the start point of the line 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startY The y-coordinate of the start point of the line 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the line 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLine(float startX, float startY, float stopX, float stopY, 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawLine(mNativeCanvas, startX, startY, stopX, stopY, 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of lines. Each line is taken from 4 consecutive values 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the pts array. Thus to draw 1 line, the array must contain at least 4 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. This is logically the same as drawing the array as follows: 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[0], pts[1], pts[2], pts[3]) followed by 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[4], pts[5], pts[6], pts[7]) and so on. 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values in the array to skip before drawing. 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values in the array to process, after 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * skipping "offset" of them. Since each line uses 4 values, 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of "lines" that are drawn is really 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (count >> 2). 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawLines(float[] pts, int offset, int count, 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLines(float[] pts, Paint paint) { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawLines(pts, 0, pts.length, paint); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to be drawn 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(RectF rect, Paint paint) { 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, rect, paint.mNativePaint); 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified Paint. The rectangle 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r The rectangle to be drawn. 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rectangle 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(Rect r, Paint paint) { 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawRect(r.left, r.top, r.right, r.bottom, paint); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to be drawn 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top side of the rectangle to be drawn 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to be drawn 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom side of the rectangle to be drawn 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(float left, float top, float right, float bottom, 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, left, top, right, bottom, 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified oval using the specified paint. The oval will be 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The rectangle bounds of the oval to be drawn 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawOval(RectF oval, Paint paint) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawOval(mNativeCanvas, oval, paint.mNativePaint); 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified circle using the specified paint. If radius is <= 0, 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then nothing will be drawn. The circle will be filled or framed based 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Style in the paint. 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cx The x-coordinate of the center of the cirle to be drawn 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cy The y-coordinate of the center of the cirle to be drawn 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param radius The radius of the cirle to be drawn 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the circle 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawCircle(float cx, float cy, float radius, Paint paint) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawCircle(mNativeCanvas, cx, cy, radius, 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9824a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>Draw the specified arc, which will be scaled to fit inside the 9834a317db43d2bbc992284dd1f651751f13734d017Romain Guy * specified oval.</p> 9844a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9854a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the start angle is negative or >= 360, the start angle is treated 9864a317db43d2bbc992284dd1f651751f13734d017Romain Guy * as start angle modulo 360.</p> 9874a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9884a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the sweep angle is >= 360, then the oval is drawn 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * completely. Note that this differs slightly from SkPath::arcTo, which 9904a317db43d2bbc992284dd1f651751f13734d017Romain Guy * treats the sweep angle modulo 360. If the sweep angle is negative, 9914a317db43d2bbc992284dd1f651751f13734d017Romain Guy * the sweep angle is treated as sweep angle modulo 360</p> 9924a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9934a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>The arc is drawn clockwise. An angle of 0 degrees correspond to the 9944a317db43d2bbc992284dd1f651751f13734d017Romain Guy * geometric angle of 0 degrees (3 o'clock on a watch.)</p> 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The bounds of oval used to define the shape and size 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the arc 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startAngle Starting angle (in degrees) where the arc begins 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sweepAngle Sweep angle (in degrees) measured clockwise 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param useCenter If true, include the center of the oval in the arc, and 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close it if it is being stroked. This will draw a wedge 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the arc 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawArc(RectF oval, float startAngle, float sweepAngle, 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, Paint paint) { 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawArc(mNativeCanvas, oval, startAngle, sweepAngle, 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useCenter, paint.mNativePaint); 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified round-rect using the specified paint. The roundrect 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangular bounds of the roundRect to be drawn 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rx The x-radius of the oval used to round the corners 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ry The y-radius of the oval used to round the corners 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the roundRect 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rect == null) { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRoundRect(mNativeCanvas, rect, rx, ry, 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified path using the specified paint. The path will be 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to be drawn 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the path 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPath(Path path, Paint paint) { 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPath(mNativeCanvas, path.ni(), paint.mNativePaint); 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void throwIfRecycled(Bitmap bitmap) { 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitmap.isRecycled()) { 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Canvas: trying to use a recycled bitmap " + bitmap); 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049deba785f122a47915756ffd991f5540d952cf937Romain Guy * Draws the specified bitmap as an N-patch (most often, a 9-patches.) 1050deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1051deba785f122a47915756ffd991f5540d952cf937Romain Guy * Note: Only supported by hardware accelerated canvas at the moment. 1052deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1053deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param bitmap The bitmap to draw as an N-patch 1054deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param chunks The patches information (matches the native struct Res_png_9patch) 1055deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param dst The destination rectangle. 1056deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param paint The paint to draw the bitmap with. may be null 1057deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1058deba785f122a47915756ffd991f5540d952cf937Romain Guy * @hide 1059deba785f122a47915756ffd991f5540d952cf937Romain Guy */ 1060deba785f122a47915756ffd991f5540d952cf937Romain Guy public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 1061deba785f122a47915756ffd991f5540d952cf937Romain Guy } 1062deba785f122a47915756ffd991f5540d952cf937Romain Guy 1063deba785f122a47915756ffd991f5540d952cf937Romain Guy /** 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, with its top/left corner at (x,y), using 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint, transformed by the current matrix. 106611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 106711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 107311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If the bitmap and canvas have different densities, this function 107411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will take care of automatically scaling the bitmap to draw at the 107511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * same density as the canvas. 107611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The position of the left side of the bitmap being drawn 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The position of the top side of the bitmap being drawn 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the bitmap (may be null) 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), left, top, 10850d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, mDensity, mScreenDensity, 10860d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn bitmap.mDensity); 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 109311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 109411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 110011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 110111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 110211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 110311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 110411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 11170d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, 11180d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity, bitmap.mDensity); 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 112511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 112611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 113211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 113311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 113411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 113511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 113611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 11490d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, 11500d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity, bitmap.mDensity); 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Treat the specified array of colors as a bitmap, and draw it. This gives 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result as first creating a bitmap from the array, and then 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing it, but this method avoids explicitly creating a bitmap object 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be more efficient if the colors are changing often. 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of colors representing the pixels of the bitmap 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Offset into the array of colors for the first pixel 116183d522290e56f614d0d9373d47c2b54b9e207795Brad Fitzpatrick * @param stride The number of colors in the array between rows (must be 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * >= width or <= -width). 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The X coordinate for where to draw the bitmap 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The Y coordinate for where to draw the bitmap 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasAlpha True if the alpha channel of the colors contains valid 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. If false, the alpha byte is ignored (assumed to 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be 0xFF for every pixel). 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, float x, 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, boolean hasAlpha, 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check for valid input 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick escape if there's nothing to draw 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // punch down to native for the actual draw 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, colors, offset, stride, x, y, width, height, hasAlpha, 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, boolean hasAlpha, 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // call through to the common float version 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawBitmap(colors, offset, stride, (float)x, (float)y, width, height, 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hasAlpha, paint); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap using the specified matrix. 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix used to transform the bitmap when it is drawn 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMatrix(mNativeCanvas, bitmap.ni(), matrix.ni(), 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12215a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 12225a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy /** 12235a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy * @hide 12245a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy */ 12255a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy protected static void checkRange(int length, int offset, int count) { 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | count) < 0 || offset + count > length) { 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap through the mesh, where mesh vertices are evenly 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed across the bitmap. There are meshWidth+1 vertices across, and 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meshHeight+1 vertices down. The verts array is accessed in row-major 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * order, so that the first meshWidth+1 vertices are distributed across the 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * top of the bitmap from left to right. A more general version of this 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methid is drawVertices(). 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw using the mesh 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshWidth The number of columns in the mesh. Nothing is drawn if 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshHeight The number of rows in the mesh. Nothing is drawn if 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of x,y pairs, specifying where the mesh should be 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawn. There must be at least 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (meshWidth+1) * (meshHeight+1) * 2 + meshOffset values 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the array 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of verts elements to skip before drawing 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. Specifies a color at each vertex, which is 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interpolated across the cell, and whose values are 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * multiplied by the corresponding bitmap colors. If not null, 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there must be at least (meshWidth+1) * (meshHeight+1) + 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colorOffset values in the array. 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of color elements to skip before drawing 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, Paint paint) { 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((meshWidth | meshHeight | vertOffset | colorOffset) < 0) { 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (meshWidth == 0 || meshHeight == 0) { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = (meshWidth + 1) * (meshHeight + 1); 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we mul by 2 since we need two floats per vertex 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, count * 2); 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no mul by 2, since we need only 1 color per vertex 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, count); 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMesh(mNativeCanvas, bitmap.ni(), meshWidth, meshHeight, 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project verts, vertOffset, colors, colorOffset, 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum VertexMode { 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLES(0), 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_STRIP(1), 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_FAN(2); 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VertexMode(int nativeInt) { 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1286a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy 1287a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy /** 1288a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy * @hide 1289a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy */ 1290a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy public final int nativeInt; 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the array of vertices, interpreted as triangles (based on mode). The 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verts array is required, and specifies the x,y pairs for each vertex. If 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texs is non-null, then it is used to specify the coordinate in shader 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinates to use at each vertex (the paint must have a shader in this 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * case). If there is no texs array, but there is a color array, then each 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color is interpolated across its corresponding triangle in a gradient. If 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * both texs and colors arrays are present, then they behave as before, but 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the resulting color at each pixels is the result of multiplying the 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colors from the shader and the color-gradient together. The indices array 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is optional, but if it is present, then it is used to specify the index 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of each triangle, rather than just walking through the arrays in order. 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode How to interpret the array of vertices 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertexCount The number of values in the vertices array (and 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding texs and colors arrays if non-null). Each logical 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex is two values (x, y), vertexCount must be a multiple of 2. 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of vertices for the mesh 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of values in the verts to skip before drawing. 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texs May be null. If not null, specifies the coordinates to sample 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into the current shader (e.g. bitmap tile or gradient) 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texOffset Number of values in texs to skip before drawing. 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. If not null, specifies a color for each 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex, to be interpolated across the triangle. 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of values in colors to skip before drawing. 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indices If not null, array of indices to reference into the 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex (texs, colors) array. 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indexCount number of entries in the indices array (if not null). 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Specifies the shader to use if the texs array is non-null. 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawVertices(VertexMode mode, int vertexCount, 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] texs, int texOffset, 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project short[] indices, int indexOffset, 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexCount, Paint paint) { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, vertexCount); 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (texs != null) { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(texs.length, texOffset, vertexCount); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 133492ce5734b52ef014c80cc6335112a027188b3eb6Erik Faye-Lund checkRange(colors.length, colorOffset, vertexCount / 2); 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indices != null) { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(indices.length, indexOffset, indexCount); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawVertices(mNativeCanvas, mode.nativeInt, vertexCount, verts, 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vertOffset, texs, texOffset, colors, colorOffset, 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project indices, indexOffset, indexCount, paint.mNativePaint); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(char[] text, int index, int count, float x, float y, 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((index | count | (index + count) | 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (text.length - index - count)) < 0) { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, index, count, x, y, paint.mBidiFlags, 1360f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1372f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawText(String text, float x, float y, Paint paint) { 1373f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, 0, text.length(), x, y, paint.mBidiFlags, 1374f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 1375f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The origin is interpreted based on the Align setting in the paint. 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text to draw 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(String text, int start, int end, float x, float y, 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((start | end | (end - start) | (text.length() - end)) < 0) { 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1393f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, start, end, x, y, paint.mBidiFlags, 1394f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified range of text, specified by start/end, with its 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin at (x,y), in the specified Paint. The origin is interpreted 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on the Align setting in the Paint. 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to draw 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of origin for where to draw the text 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of origin for where to draw the text 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(CharSequence text, int start, int end, float x, 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, Paint paint) { 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof String || text instanceof SpannedString || 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text instanceof SpannableString) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text.toString(), start, end, x, y, 1415f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1416f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((GraphicsOperations) text).drawText(this, start, end, x, y, 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 1419f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 1420f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt char[] buf = TemporaryBuffer.obtain(end - start); 1421f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TextUtils.getChars(text, start, end, buf, 0); 1422796cc96243a57cd1b652bd90c4e7ba7823c6c2feFabrice Di Meglio native_drawText(mNativeCanvas, buf, 0, end - start, x, y, 1423f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1424f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TemporaryBuffer.recycle(buf); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1426f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1427f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1428f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1429f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1430f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1431f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1432f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 1433f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * 1434f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 14350c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param index the start of the text to render 14360c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param count the count of chars to render 14370c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextIndex the start of the context for shaping. Must be 14380c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * no greater than index. 14390c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextCount the number of characters in the context for shaping. 14400c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * ContexIndex + contextCount must be no less than index 14410c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * + count. 1442f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1443f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 14440c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param dir the run direction, either {@link #DIRECTION_LTR} or 14450c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * {@link #DIRECTION_RTL}. 1446f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1447f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1448f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 14490c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt public void drawTextRun(char[] text, int index, int count, 14500c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int contextIndex, int contextCount, float x, float y, int dir, 1451f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt Paint paint) { 1452f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1453f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1454f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1455f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1456f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1457f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1458f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 14590c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt if ((index | count | text.length - index - count) < 0) { 1460f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1461f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1462f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1463f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IllegalArgumentException("unknown dir: " + dir); 1464f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1465f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 14660c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text, index, count, 14670c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextIndex, contextCount, x, y, dir, paint.mNativePaint); 1468f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1469f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1470f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1471f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1472f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1473f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1474f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 14750c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * 1476f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 1477f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param start the start of the text to render. Data before this position 1478f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * can be used for shaping context. 1479f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param end the end of the text to render. Data at or after this 1480f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * position can be used for shaping context. 1481f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1482f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 1483f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param dir the run direction, either 0 for LTR or 1 for RTL. 1484f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1485f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1486f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 14870c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt public void drawTextRun(CharSequence text, int start, int end, 14880c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int contextStart, int contextEnd, float x, float y, int dir, 14890c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt Paint paint) { 1490f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1491f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1492f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1493f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1494f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1495f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1496f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1497f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if ((start | end | end - start | text.length() - end) < 0) { 1498f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1499f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1500f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1501f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt int flags = dir == 0 ? 0 : 1; 1502f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1503f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text instanceof String || text instanceof SpannedString || 1504f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text instanceof SpannableString) { 15050c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text.toString(), start, end, 15060c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextStart, contextEnd, x, y, flags, paint.mNativePaint); 1507f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 15080c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt ((GraphicsOperations) text).drawTextRun(this, start, end, 15090c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextStart, contextEnd, x, y, flags, paint); 1510f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 15110c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int contextLen = contextEnd - contextStart; 15120c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int len = end - start; 15130c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt char[] buf = TemporaryBuffer.obtain(contextLen); 15140c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 15150c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, buf, start - contextStart, len, 15160c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt 0, contextLen, x, y, flags, paint.mNativePaint); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TemporaryBuffer.recycle(buf); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the first character to draw 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of characters to draw, starting from index. 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * character 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(char[] text, int index, int count, float[] pos, 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length || count*2 > pos.length) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, index, count, pos, 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each character 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(String text, float[] pos, Paint paint) { 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length()*2 > pos.length) { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, pos, paint.mNativePaint); 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(char[] text, int index, int count, Path path, 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, float vOffset, Paint paint) { 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length) { 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, index, count, 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project path.ni(), hOffset, vOffset, 15764beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt paint.mBidiFlags, paint.mNativePaint); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(String text, Path path, float hOffset, 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, Paint paint) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length() > 0) { 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, path.ni(), 15964beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt hOffset, vOffset, paint.mBidiFlags, 15974beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt paint.mNativePaint); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Save the canvas state, draw the picture, and restore the canvas state. 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This differs from picture.draw(canvas), which does not perform any 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * save/restore. 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param picture The picture to be drawn 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture) { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture.endRecording(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPicture(mNativeCanvas, picture.ni()); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, RectF dst) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(dst.width() / picture.getWidth(), 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.height() / picture.getHeight()); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, Rect dst) { 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale((float)dst.width() / picture.getWidth(), 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float)dst.height() / picture.getHeight()); 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1640da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 1641da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy /** 1642163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Free up as much memory as possible from private caches (e.g. fonts, images) 1643caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * 1644163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 1645caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed */ 1646caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static native void freeCaches(); 1647caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initRaster(int nativeBitmapOrZero); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setBitmap(int nativeCanvas, int bitmap); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, RectF bounds, 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, float l, 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF bounds, int alpha, 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int layerFlags); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, float l, 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int layerFlags); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_concat(int nCanvas, int nMatrix); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setMatrix(int nCanvas, int nMatrix); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRect(int nCanvas, 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipPath(int nativeCanvas, 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePath, 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRegion(int nativeCanvas, 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeRegion, 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetDrawFilter(int nativeCanvas, 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_getClipBounds(int nativeCanvas, 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_getCTM(int canvas, int matrix); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int path, 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRGB(int nativeCanvas, int r, int g, 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int b); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawARGB(int nativeCanvas, int a, int r, 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int g, int b); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color, 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPaint(int nativeCanvas, int paint); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawLine(int nativeCanvas, float startX, 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startY, float stopX, 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float stopY, int paint); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, RectF rect, 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, float left, 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float top, float right, 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float bottom, int paint); 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawOval(int nativeCanvas, RectF oval, 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawCircle(int nativeCanvas, float cx, 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float cy, float radius, 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawArc(int nativeCanvas, RectF oval, 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startAngle, float sweep, 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, int paint); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRoundRect(int nativeCanvas, 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, float rx, 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ry, int paint); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPath(int nativeCanvas, int path, 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 172011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int nativePaintOrZero, 17210d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int canvasDensity, 17220d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17230d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, RectF dst, 17260d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 17270d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17280d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int bitmap, 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, Rect dst, 17310d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 17320d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17330d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int[] colors, 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, float x, 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean hasAlpha, 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nMatrix, int nPaint); 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMesh(int nCanvas, int nBitmap, 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int meshWidth, int meshHeight, 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, int nPaint); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawVertices(int nCanvas, int mode, int n, 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, float[] texs, int texOffset, 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, short[] indices, 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexOffset, int indexCount, int nPaint); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, char[] text, 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index, int count, float x, 1752f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, String text, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start, int end, float x, 1755f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 1756fcf2be1846935e7983ea2fe87fdd4d7af27764b6Fabrice Di Meglio 17570c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, String text, 17580c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int end, int contextStart, int contextEnd, 17590c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt float x, float y, int flags, int paint); 1760f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17610c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, char[] text, 17620c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int count, int contextStart, int contextCount, 17630c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt float x, float y, int flags, int paint); 1764f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, float[] pos, 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, float[] pos, 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, int path, 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 17764beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float vOffset, int bidiFlags, 17774beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt int paint); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, int path, 17804beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float hOffset, 17814beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float vOffset, 17824beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt int flags, int paint); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPicture(int nativeCanvas, 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePicture); 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void finalizer(int nativeCanvas); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1787