Canvas.java revision 5d11676414b3606792e23c269cf75b44faa1a2af
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). 3261fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * 3361fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <div class="special reference"> 3461fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <h3>Developer Guides</h3> 3561fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <p>For more information about how to use Canvas, read the 3661fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <a href="{@docRoot}guide/topics/graphics/2d-graphics.html"> 3761fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * Canvas and Drawables</a> developer guide.</p></div> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Canvas { 407c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik // assigned in constructors, freed in finalizer 417c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik final int mNativeCanvas; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy // may be null 44e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy private Bitmap mBitmap; 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"}) 63e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy private int mSurfaceFormat; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65f61970fc79e9c5cf340fa942597628242361864aRomain Guy // Maximum bitmap size as defined in Skia's native code 66f61970fc79e9c5cf340fa942597628242361864aRomain Guy // (see SkCanvas.cpp, SkDraw.cpp) 67f61970fc79e9c5cf340fa942597628242361864aRomain Guy private static final int MAXMIMUM_BITMAP_SIZE = 32766; 68f61970fc79e9c5cf340fa942597628242361864aRomain Guy 694a317db43d2bbc992284dd1f651751f13734d017Romain Guy // This field is used to finalize the native Canvas properly 704a317db43d2bbc992284dd1f651751f13734d017Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 71e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final CanvasFinalizer mFinalizer; 72e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 73e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private static class CanvasFinalizer { 747c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik private final int mNativeCanvas; 75e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 76e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy public CanvasFinalizer(int nativeCanvas) { 77e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mNativeCanvas = nativeCanvas; 78e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 79e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 80e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy @Override 81e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy protected void finalize() throws Throwable { 823b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy try { 833b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy if (mNativeCanvas != 0) { 843b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy finalizer(mNativeCanvas); 853b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } 863b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } finally { 873b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy super.finalize(); 88e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 89e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 90e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 91e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 92f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct an empty raster canvas. Use setBitmap() to specify a bitmap to 9496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * draw into. The initial target density is {@link Bitmap#DENSITY_NONE}; 9596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * this will typically be replaced when a target bitmap is set for the 9696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * canvas. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas() { 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0 means no native bitmap 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(0); 1012fc941e4650d618ff6e122f28b616d9032ffa134Romain Guy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified bitmap to draw into. The bitmap 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be mutable. 10796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 10896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the given 10996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap's density. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(Bitmap bitmap) { 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 115f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy throw new IllegalStateException("Immutable bitmap passed to Canvas constructor"); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(bitmap.ni()); 119e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 12196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 124163935113919a184122b8b3bd672ef08c8df65dcRomain Guy Canvas(int nativeCanvas) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeCanvas == 0) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = nativeCanvas; 129e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(nativeCanvas); 13096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 132163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 134163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Returns null. 13596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 136163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @deprecated This method is not supported and should not be invoked. 1373b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * 1383b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * @hide 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 140cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne @Deprecated 141163935113919a184122b8b3bd672ef08c8df65dcRomain Guy protected GL getGL() { 142163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return null; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1442d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy 1452d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy /** 1462d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Indicates whether this Canvas uses hardware acceleration. 1472d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1482d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Note that this method does not define what type of hardware acceleration 1492d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * may or may not be used. 1502d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1512d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @return True if drawing operations are hardware accelerated, 1522d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * false otherwise. 1532d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy */ 1542d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy public boolean isHardwareAccelerated() { 155163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return false; 156caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed } 157163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1597c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik * Specify a bitmap for the canvas to draw into. As a side-effect, also 1607c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik * updates the canvas's target density to match that of the bitmap. 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 1637c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik * 16496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #setDensity(int) 16596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #getDensity() 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBitmap(Bitmap bitmap) { 168163935113919a184122b8b3bd672ef08c8df65dcRomain Guy if (isHardwareAccelerated()) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Can't set a bitmap device on a GL canvas"); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1727c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik int pointer = 0; 1737c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik if (bitmap != null) { 1740965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy if (!bitmap.isMutable()) { 1750965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throw new IllegalStateException(); 1760965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 1770965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throwIfRecycled(bitmap); 1780965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy mDensity = bitmap.mDensity; 1797c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik pointer = bitmap.ni(); 1800965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 1810965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy 1827c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik native_setBitmap(mNativeCanvas, pointer); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the viewport dimensions if this canvas is GL based. If it is not, 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this method is ignored and no exception is thrown. 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 190163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param width The width of the viewport 191163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param height The height of the viewport 1922d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 193163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewport(int width, int height) { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the device that the current layer draws into is opaque 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. does not support per-pixel alpha). 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the device that the current layer draws into is opaque 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean isOpaque(); 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the width of the current drawing layer 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width of the current drawing layer 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getWidth(); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the height of the current drawing layer 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the height of the current drawing layer 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getHeight(); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Returns the target density of the canvas. The default density is 22296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * derived from the density of its backing bitmap, or 22396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} if there is not one.</p> 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return Returns the current target density of the canvas, which is used 22696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 22911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 23211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Specifies the density for this Canvas' backing bitmap. This modifies 23796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * the target density of the canvas itself, as well as the density of its 23896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * backing bitmap via {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}. 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @param density The new target density of the canvas, which is used 24196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. Use 24296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} to disable bitmap scaling. 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 24511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBitmap != null) { 24911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mBitmap.setDensity(density); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2540d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn /** @hide */ 2550d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn public void setScreenDensity(int density) { 2560d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity = density; 2570d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn } 258f61970fc79e9c5cf340fa942597628242361864aRomain Guy 259f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 260f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed width for bitmaps drawn with this canvas. 261f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap wider than this value will result 262f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 263f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 264f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapHeight() 265f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 266f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapWidth() { 267f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 268f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 2690d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 270f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 271f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed height for bitmaps drawn with this canvas. 272f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap taller than this value will result 273f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 274f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 275f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapWidth() 276f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 277f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapHeight() { 278f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 279f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 280f61970fc79e9c5cf340fa942597628242361864aRomain Guy 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the SAVE_FLAG constants must match their native equivalents 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current matrix when restore() is called */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MATRIX_SAVE_FLAG = 0x01; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current clip when restore() is called */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_SAVE_FLAG = 0x02; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to per-pixel alpha */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HAS_ALPHA_LAYER_SAVE_FLAG = 0x04; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to 8-bits per color component */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FULL_COLOR_LAYER_SAVE_FLAG = 0x08; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** clip against the layer's bounds */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_TO_LAYER_SAVE_FLAG = 0x10; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore everything when restore() is called */ 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALL_SAVE_FLAG = 0x1F; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Saves the current matrix and clip onto a private stack. Subsequent 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calls to translate,scale,rotate,skew,concat or clipRect,clipPath 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will all operate as usual, but when the balancing call to restore() 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is made, those calls will be forgotten, and the settings that existed 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * before the save() will be reinstated. 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Based on saveFlags, can save the current matrix and clip onto a private 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stack. Subsequent calls to translate,scale,rotate,skew,concat or 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect,clipPath will all operate as usual, but when the balancing 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * call to restore() is made, those calls will be forgotten, and the 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * settings that existed before the save() will be reinstated. 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags flag bits that specify which parts of the Canvas state 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to save/restore 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(int saveFlags); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds May be null. The maximum size the offscreen bitmap 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needs to be (in local coordinates) 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint This is copied, and is applied to the offscreen when 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * restore() is called. 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this save() 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, bounds, 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper version of saveLayer() that takes 4 values rather than a RectF. 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 345f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public int saveLayer(float left, float top, float right, float bottom, Paint paint, 346f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int saveFlags) { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, left, top, right, bottom, 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds The maximum size the offscreen bitmap needs to be 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (in local coordinates) 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha to apply to the offscreen when when it is 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawn during restore() 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this call 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha = Math.min(255, Math.max(0, alpha)); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, bounds, alpha, saveFlags); 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for saveLayerAlpha() that takes 4 values instead of a RectF. 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 376f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 377f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int saveFlags) { 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, left, top, right, bottom, 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha, saveFlags); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This call balances a previous call to save(), and is used to remove all 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * modifications to the matrix/clip state since the last save call. It is 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an error to call restore() more times than save() was called. 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restore(); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of matrix/clip states on the Canvas' private stack. 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will equal # save() calls - # restore() calls. 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getSaveCount(); 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Efficient way to pop any calls to save() that happened after the save 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count reached saveCount. It is an error for saveCount to be less than 1. 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Example: 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * int count = canvas.save(); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ... // more calls potentially to save() 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * canvas.restoreToCount(count); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // now the canvas is back in the same state it was before the initial 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // call to save(). 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveCount The save level to restore to. 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restoreToCount(int saveCount); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified translation 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dx The distance to translate in X 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dy The distance to translate in Y 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void translate(float dx, float dy); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void scale(float sx, float sy); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 431cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param px The x-coord for the pivot point (unchanged by the scale) 432cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param py The y-coord for the pivot point (unchanged by the scale) 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void scale(float sx, float sy, float px, float py) { 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(sx, sy); 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void rotate(float degrees); 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void rotate(float degrees, float px, float py) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rotate(degrees); 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified skew. 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to skew in X 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to skew in Y 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void skew(float sx, float sy); 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified matrix. 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to preconcatenate with the current matrix 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void concat(Matrix matrix) { 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_concat(mNativeCanvas, matrix.native_instance); 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Completely replace the current matrix with the specified matrix. If the 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix parameter is null, then the current matrix is reset to identity. 480f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * 481f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * <strong>Note:</strong> it is recommended to use {@link #concat(Matrix)}, 482f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * {@link #scale(float, float)}, {@link #translate(float, float)} and 483f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * {@link #rotate(float)} instead of this method. 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to replace the current matrix with. If it is 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, set the current matrix to identity. 487f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * 488f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * @see #concat(Matrix) 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setMatrix(Matrix matrix) { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setMatrix(mNativeCanvas, 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matrix == null ? 0 : matrix.native_instance); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return, in ctm, the current transformation matrix. This does not alter 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the matrix in the canvas, but just returns a copy of it. 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 499f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getMatrix(Matrix ctm) { 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_getCTM(mNativeCanvas, ctm.native_instance); 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50341030da16856c8869e1e51d4a0405432fa96614eRomain Guy 50441030da16856c8869e1e51d4a0405432fa96614eRomain Guy /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return a new matrix with a copy of the canvas' current transformation 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix. 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50865447287cb4112cf74483c87be70bcd00b622e2dRomain Guy @Deprecated 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Matrix getMatrix() { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m = new Matrix(); 511f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy //noinspection deprecation 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getMatrix(m); 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return m; 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle. 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to intersect with the current clip 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(RectF rect, Region.Op op) { 524f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, rect.left, rect.top, rect.right, rect.bottom, 525f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy op.nativeInt); 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(Rect rect, Region.Op op) { 537f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, rect.left, rect.top, rect.right, rect.bottom, 538f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy op.nativeInt); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(RectF rect); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(Rect rect); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 574f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 575f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, left, top, right, bottom, op.nativeInt); 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 591f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native boolean clipRect(float left, float top, float right, float bottom); 592f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 606f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native boolean clipRect(int left, int top, int right, int bottom); 607f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified path. 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to operate on the current clip 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path, Region.Op op) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipPath(mNativeCanvas, path.ni(), op.nativeInt); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified path. 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to intersect with the current clip 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path) { 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipPath(path, Region.Op.INTERSECT); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified region. Note that unlike 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region, Region.Op op) { 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRegion(mNativeCanvas, region.ni(), op.nativeInt); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified region. Note that unlike 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region) { 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipRegion(region, Region.Op.INTERSECT); 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DrawFilter getDrawFilter() { 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDrawFilter; 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawFilter(DrawFilter filter) { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter = 0; 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filter != null) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeFilter = filter.mNativeInt; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawFilter = filter; 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetDrawFilter(mNativeCanvas, nativeFilter); 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum EdgeType { 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BW(0), //!< treat edges by just rounding to nearest pixel boundary 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AA(1); //!< treat edges by rounding-out, since they may be antialiased 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType(int nativeInt) { 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 678c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 679c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /** 680c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * @hide 681c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 682c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy public final int nativeInt; 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect the rect to compare with the current clip 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type specifies how to treat the edges (BW or antialiased) 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(RectF rect, EdgeType type) { 6977c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik return native_quickReject(mNativeCanvas, rect, type.nativeInt); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified path, after being transformed by the 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). Note: for speed it may 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return false even if the path itself might not intersect the clip 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. the bounds of the path intersects, but the path does not). 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to compare with the current clip 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the path should be considered antialiased, 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * affect a larger area (more pixels) than 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-antialiased. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the path (transformed by the canvas' matrix) 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(Path path, EdgeType type) { 7177c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik return native_quickReject(mNativeCanvas, path.ni(), type.nativeInt); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to compare with the 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to compare with the current 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to compare with the 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to compare with the 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the rect should be considered antialiased, 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may affect a larger area (more 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels) than non-antialiased. 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7407c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 7417c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik return native_quickReject(mNativeCanvas, left, top, right, bottom, 7427c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik type.nativeInt); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds, returning true if they are non-empty. 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds Return the clip bounds here. If it is null, ignore it but 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still return true if the current clip is non-empty. 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the current clip is non-empty. 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getClipBounds(Rect bounds) { 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_getClipBounds(mNativeCanvas, bounds); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds. 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the clip bounds, or [0, 0, 0, 0] if the clip is empty. 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Rect getClipBounds() { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect r = new Rect(); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getClipBounds(r); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return r; 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified RGB color, using srcover porterduff mode. 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRGB(int r, int g, int b) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRGB(mNativeCanvas, r, g, b); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified ARGB color, using srcover porterduff mode. 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param a alpha component (0..255) of the color to draw onto the canvas 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawARGB(int a, int r, int g, int b) { 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawARGB(mNativeCanvas, a, r, g, b); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color, using srcover porterduff mode. 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw onto the canvas 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color and porter-duff xfermode. 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw with 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the porter-duff mode to apply to the color 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color, PorterDuff.Mode mode) { 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color, mode.nativeInt); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint. This is equivalent (but faster) to drawing an 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * infinitely large rectangle with the specified paint. 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw onto the canvas 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPaint(Paint paint) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPaint(mNativeCanvas, paint.mNativePaint); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of points. Each point is centered at the coordinate 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified by pts[], and its diameter is specified by the paint's stroke 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width (as transformed by the canvas' CTM), with special treatment for 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stroke width of 0, which always draws exactly 1 pixel (or at most 4 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if antialiasing is enabled). The shape of the point is controlled by 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the paint's Cap type. The shape is a square, unless the cap type is 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Round, in which case the shape is a circle. 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before starting to draw. 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values to process, after skipping offset 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of them. Since one point uses two values, the number of 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "points" that are drawn is really (count >> 1). 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 840f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native void drawPoints(float[] pts, int offset, int count, Paint paint); 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() that assumes you want to draw the entire array 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPoints(float[] pts, Paint paint) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPoints(pts, 0, pts.length, paint); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() for drawing a single point. 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoint(float x, float y, Paint paint); 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a line segment with the specified start and stop x,y coordinates, 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using the specified paint. NOTE: since a line is always "framed", the 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Style is ignored in the paint. 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startX The x-coordinate of the start point of the line 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startY The y-coordinate of the start point of the line 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the line 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 863f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 864f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawLine(mNativeCanvas, startX, startY, stopX, stopY, paint.mNativePaint); 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of lines. Each line is taken from 4 consecutive values 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the pts array. Thus to draw 1 line, the array must contain at least 4 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. This is logically the same as drawing the array as follows: 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[0], pts[1], pts[2], pts[3]) followed by 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[4], pts[5], pts[6], pts[7]) and so on. 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values in the array to skip before drawing. 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values in the array to process, after 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * skipping "offset" of them. Since each line uses 4 values, 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of "lines" that are drawn is really 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (count >> 2). 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 882f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native void drawLines(float[] pts, int offset, int count, Paint paint); 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLines(float[] pts, Paint paint) { 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawLines(pts, 0, pts.length, paint); 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to be drawn 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(RectF rect, Paint paint) { 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, rect, paint.mNativePaint); 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified Paint. The rectangle 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r The rectangle to be drawn. 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rectangle 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(Rect r, Paint paint) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawRect(r.left, r.top, r.right, r.bottom, paint); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to be drawn 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top side of the rectangle to be drawn 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to be drawn 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom side of the rectangle to be drawn 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 921f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawRect(float left, float top, float right, float bottom, Paint paint) { 922f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawRect(mNativeCanvas, left, top, right, bottom, 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 oval using the specified paint. The oval will be 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The rectangle bounds of the oval to be drawn 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawOval(RectF oval, Paint paint) { 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawOval(mNativeCanvas, oval, paint.mNativePaint); 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified circle using the specified paint. If radius is <= 0, 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then nothing will be drawn. The circle will be filled or framed based 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Style in the paint. 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cx The x-coordinate of the center of the cirle to be drawn 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cy The y-coordinate of the center of the cirle to be drawn 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param radius The radius of the cirle to be drawn 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the circle 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawCircle(float cx, float cy, float radius, Paint paint) { 949f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawCircle(mNativeCanvas, cx, cy, radius, paint.mNativePaint); 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9534a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>Draw the specified arc, which will be scaled to fit inside the 9544a317db43d2bbc992284dd1f651751f13734d017Romain Guy * specified oval.</p> 9554a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9564a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the start angle is negative or >= 360, the start angle is treated 9574a317db43d2bbc992284dd1f651751f13734d017Romain Guy * as start angle modulo 360.</p> 9584a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9594a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the sweep angle is >= 360, then the oval is drawn 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * completely. Note that this differs slightly from SkPath::arcTo, which 9614a317db43d2bbc992284dd1f651751f13734d017Romain Guy * treats the sweep angle modulo 360. If the sweep angle is negative, 9624a317db43d2bbc992284dd1f651751f13734d017Romain Guy * the sweep angle is treated as sweep angle modulo 360</p> 9634a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9644a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>The arc is drawn clockwise. An angle of 0 degrees correspond to the 9654a317db43d2bbc992284dd1f651751f13734d017Romain Guy * geometric angle of 0 degrees (3 o'clock on a watch.)</p> 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The bounds of oval used to define the shape and size 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the arc 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startAngle Starting angle (in degrees) where the arc begins 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sweepAngle Sweep angle (in degrees) measured clockwise 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param useCenter If true, include the center of the oval in the arc, and 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close it if it is being stroked. This will draw a wedge 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the arc 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 975f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 976f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy Paint paint) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawArc(mNativeCanvas, oval, startAngle, sweepAngle, 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useCenter, paint.mNativePaint); 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified round-rect using the specified paint. The roundrect 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangular bounds of the roundRect to be drawn 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rx The x-radius of the oval used to round the corners 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ry The y-radius of the oval used to round the corners 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the roundRect 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rect == null) { 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRoundRect(mNativeCanvas, rect, rx, ry, 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified path using the specified paint. The path will be 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to be drawn 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the path 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPath(Path path, Paint paint) { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPath(mNativeCanvas, path.ni(), paint.mNativePaint); 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void throwIfRecycled(Bitmap bitmap) { 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitmap.isRecycled()) { 1014f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy throw new RuntimeException("Canvas: trying to use a recycled bitmap " + bitmap); 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019deba785f122a47915756ffd991f5540d952cf937Romain Guy * Draws the specified bitmap as an N-patch (most often, a 9-patches.) 1020deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1021deba785f122a47915756ffd991f5540d952cf937Romain Guy * Note: Only supported by hardware accelerated canvas at the moment. 1022deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1023deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param bitmap The bitmap to draw as an N-patch 1024deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param chunks The patches information (matches the native struct Res_png_9patch) 1025deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param dst The destination rectangle. 1026deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param paint The paint to draw the bitmap with. may be null 1027deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1028deba785f122a47915756ffd991f5540d952cf937Romain Guy * @hide 1029deba785f122a47915756ffd991f5540d952cf937Romain Guy */ 1030deba785f122a47915756ffd991f5540d952cf937Romain Guy public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 1031deba785f122a47915756ffd991f5540d952cf937Romain Guy } 1032deba785f122a47915756ffd991f5540d952cf937Romain Guy 1033deba785f122a47915756ffd991f5540d952cf937Romain Guy /** 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, with its top/left corner at (x,y), using 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint, transformed by the current matrix. 103611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 103711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 104311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If the bitmap and canvas have different densities, this function 104411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will take care of automatically scaling the bitmap to draw at the 104511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * same density as the canvas. 104611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The position of the left side of the bitmap being drawn 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The position of the top side of the bitmap being drawn 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the bitmap (may be null) 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), left, top, 1055f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mDensity, mScreenDensity, bitmap.mDensity); 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 106211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 106311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 106911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 107011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 107111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 107211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 107311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 1086f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mScreenDensity, 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, Rect 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, 1117f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mScreenDensity, bitmap.mDensity); 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Treat the specified array of colors as a bitmap, and draw it. This gives 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result as first creating a bitmap from the array, and then 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing it, but this method avoids explicitly creating a bitmap object 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be more efficient if the colors are changing often. 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of colors representing the pixels of the bitmap 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Offset into the array of colors for the first pixel 112883d522290e56f614d0d9373d47c2b54b9e207795Brad Fitzpatrick * @param stride The number of colors in the array between rows (must be 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * >= width or <= -width). 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The X coordinate for where to draw the bitmap 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The Y coordinate for where to draw the bitmap 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasAlpha True if the alpha channel of the colors contains valid 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. If false, the alpha byte is ignored (assumed to 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be 0xFF for every pixel). 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 1140f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int width, int height, boolean hasAlpha, Paint paint) { 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check for valid input 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick escape if there's nothing to draw 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // punch down to native for the actual draw 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, colors, offset, stride, x, y, width, height, hasAlpha, 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 1169f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int width, int height, boolean hasAlpha, Paint paint) { 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // call through to the common float version 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawBitmap(colors, offset, stride, (float)x, (float)y, width, height, 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hasAlpha, paint); 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap using the specified matrix. 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix used to transform the bitmap when it is drawn 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMatrix(mNativeCanvas, bitmap.ni(), matrix.ni(), 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11865a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 11875a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy /** 11885a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy * @hide 11895a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy */ 11905a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy protected static void checkRange(int length, int offset, int count) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | count) < 0 || offset + count > length) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap through the mesh, where mesh vertices are evenly 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed across the bitmap. There are meshWidth+1 vertices across, and 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meshHeight+1 vertices down. The verts array is accessed in row-major 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * order, so that the first meshWidth+1 vertices are distributed across the 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * top of the bitmap from left to right. A more general version of this 12025d11676414b3606792e23c269cf75b44faa1a2afChris Craik * method is drawVertices(). 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw using the mesh 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshWidth The number of columns in the mesh. Nothing is drawn if 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshHeight The number of rows in the mesh. Nothing is drawn if 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of x,y pairs, specifying where the mesh should be 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawn. There must be at least 12115d11676414b3606792e23c269cf75b44faa1a2afChris Craik * (meshWidth+1) * (meshHeight+1) * 2 + vertOffset values 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the array 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of verts elements to skip before drawing 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. Specifies a color at each vertex, which is 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interpolated across the cell, and whose values are 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * multiplied by the corresponding bitmap colors. If not null, 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there must be at least (meshWidth+1) * (meshHeight+1) + 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colorOffset values in the array. 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of color elements to skip before drawing 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, 1223f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float[] verts, int vertOffset, int[] colors, int colorOffset, Paint paint) { 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((meshWidth | meshHeight | vertOffset | colorOffset) < 0) { 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (meshWidth == 0 || meshHeight == 0) { 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = (meshWidth + 1) * (meshHeight + 1); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we mul by 2 since we need two floats per vertex 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, count * 2); 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no mul by 2, since we need only 1 color per vertex 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, count); 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMesh(mNativeCanvas, bitmap.ni(), meshWidth, meshHeight, 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project verts, vertOffset, colors, colorOffset, 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1241f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum VertexMode { 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLES(0), 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_STRIP(1), 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_FAN(2); 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VertexMode(int nativeInt) { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1250a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy 1251a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy /** 1252a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy * @hide 1253a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy */ 1254a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy public final int nativeInt; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the array of vertices, interpreted as triangles (based on mode). The 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verts array is required, and specifies the x,y pairs for each vertex. If 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texs is non-null, then it is used to specify the coordinate in shader 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinates to use at each vertex (the paint must have a shader in this 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * case). If there is no texs array, but there is a color array, then each 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color is interpolated across its corresponding triangle in a gradient. If 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * both texs and colors arrays are present, then they behave as before, but 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the resulting color at each pixels is the result of multiplying the 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colors from the shader and the color-gradient together. The indices array 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is optional, but if it is present, then it is used to specify the index 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of each triangle, rather than just walking through the arrays in order. 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode How to interpret the array of vertices 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertexCount The number of values in the vertices array (and 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding texs and colors arrays if non-null). Each logical 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex is two values (x, y), vertexCount must be a multiple of 2. 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of vertices for the mesh 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of values in the verts to skip before drawing. 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texs May be null. If not null, specifies the coordinates to sample 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into the current shader (e.g. bitmap tile or gradient) 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texOffset Number of values in texs to skip before drawing. 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. If not null, specifies a color for each 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex, to be interpolated across the triangle. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of values in colors to skip before drawing. 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indices If not null, array of indices to reference into the 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex (texs, colors) array. 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indexCount number of entries in the indices array (if not null). 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Specifies the shader to use if the texs array is non-null. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1287f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1288f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float[] texs, int texOffset, int[] colors, int colorOffset, 1289f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy short[] indices, int indexOffset, int indexCount, Paint paint) { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, vertexCount); 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (texs != null) { 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(texs.length, texOffset, vertexCount); 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 129592ce5734b52ef014c80cc6335112a027188b3eb6Erik Faye-Lund checkRange(colors.length, colorOffset, vertexCount / 2); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indices != null) { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(indices.length, indexOffset, indexCount); 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawVertices(mNativeCanvas, mode.nativeInt, vertexCount, verts, 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vertOffset, texs, texOffset, colors, colorOffset, 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project indices, indexOffset, indexCount, paint.mNativePaint); 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1314f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((index | count | (index + count) | 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (text.length - index - count)) < 0) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13196d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio native_drawText(mNativeCanvas, text, index, count, x, y, paint.mNativePaint); 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1331f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawText(String text, float x, float y, Paint paint) { 13326d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio native_drawText(mNativeCanvas, text, 0, text.length(), x, y, paint.mNativePaint); 1333f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The origin is interpreted based on the Align setting in the paint. 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text to draw 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1346f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(String text, int start, int end, float x, float y, Paint paint) { 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((start | end | (end - start) | (text.length() - end)) < 0) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13506d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio native_drawText(mNativeCanvas, text, start, end, x, y, paint.mNativePaint); 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified range of text, specified by start/end, with its 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin at (x,y), in the specified Paint. The origin is interpreted 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on the Align setting in the Paint. 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to draw 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of origin for where to draw the text 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of origin for where to draw the text 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1366f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof String || text instanceof SpannedString || 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text instanceof SpannableString) { 13696d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio native_drawText(mNativeCanvas, text.toString(), start, end, x, y, paint.mNativePaint); 1370f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((GraphicsOperations) text).drawText(this, start, end, x, y, 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 1373f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 1374f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt char[] buf = TemporaryBuffer.obtain(end - start); 1375f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TextUtils.getChars(text, start, end, buf, 0); 13766d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio native_drawText(mNativeCanvas, buf, 0, end - start, x, y, paint.mNativePaint); 1377f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TemporaryBuffer.recycle(buf); 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1380f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1381f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1382f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1383f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1384f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1385f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 1386f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * 1387f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 13880c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param index the start of the text to render 13890c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param count the count of chars to render 13900c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextIndex the start of the context for shaping. Must be 13910c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * no greater than index. 13920c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextCount the number of characters in the context for shaping. 13930c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * ContexIndex + contextCount must be no less than index 13940c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * + count. 1395f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1396f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 1397f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1398f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1399f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1400f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 14016d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float x, float y, Paint paint) { 1402f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1403f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1404f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1405f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1406f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1407f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1408f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 14090c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt if ((index | count | text.length - index - count) < 0) { 1410f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1411f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1412f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 14130c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text, index, count, 14146d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio contextIndex, contextCount, x, y, paint.mNativePaint); 1415f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1416f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1417f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1418f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1419f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1420f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1421f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 14220c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * 1423f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 1424f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param start the start of the text to render. Data before this position 1425f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * can be used for shaping context. 1426f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param end the end of the text to render. Data at or after this 1427f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * position can be used for shaping context. 1428f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1429f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 1430f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1431f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1432f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1433f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 14346d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float x, float y, Paint paint) { 1435f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1436f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1437f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1438f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1439f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1440f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1441f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1442f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if ((start | end | end - start | text.length() - end) < 0) { 1443f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1444f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1445f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1446f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text instanceof String || text instanceof SpannedString || 1447f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text instanceof SpannableString) { 14480c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text.toString(), start, end, 14496d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio contextStart, contextEnd, x, y, paint.mNativePaint); 1450f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 14510c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt ((GraphicsOperations) text).drawTextRun(this, start, end, 14526d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio contextStart, contextEnd, x, y, paint); 1453f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 14540c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int contextLen = contextEnd - contextStart; 14550c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int len = end - start; 14560c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt char[] buf = TemporaryBuffer.obtain(contextLen); 14570c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 14580c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, buf, start - contextStart, len, 14596d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio 0, contextLen, x, y, paint.mNativePaint); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TemporaryBuffer.recycle(buf); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 146762b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * 146862b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * This method does not support glyph composition and decomposition and 146962b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * should therefore not be used to render complex scripts. 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the first character to draw 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of characters to draw, starting from index. 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * character 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1478f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 1479f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length || count*2 > pos.length) { 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, index, count, pos, 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 149062b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * 149162b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * This method does not support glyph composition and decomposition and 149262b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * should therefore not be used to render complex scripts. 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each character 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1498f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(String text, float[] pos, Paint paint) { 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length()*2 > pos.length) { 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, pos, paint.mNativePaint); 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(char[] text, int index, int count, Path path, 1520f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float hOffset, float vOffset, Paint paint) { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, index, count, 15256d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio path.ni(), hOffset, vOffset, paint.mNativePaint); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1541f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length() > 0) { 1543f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawTextOnPath(mNativeCanvas, text, path.ni(), hOffset, vOffset, 15446d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio paint.mNativePaint); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Save the canvas state, draw the picture, and restore the canvas state. 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This differs from picture.draw(canvas), which does not perform any 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * save/restore. 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param picture The picture to be drawn 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture) { 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture.endRecording(); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPicture(mNativeCanvas, picture.ni()); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, RectF dst) { 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1567f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, Rect dst) { 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1580f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy scale((float) dst.width() / picture.getWidth(), 1581f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy (float) dst.height() / picture.getHeight()); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1586da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 1587da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy /** 1588163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Free up as much memory as possible from private caches (e.g. fonts, images) 1589caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * 1590163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 1591caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed */ 1592caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static native void freeCaches(); 1593caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed 159430ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio /** 159530ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * Free up text layout caches 159630ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * 159730ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * @hide 159830ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio */ 159930ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio public static native void freeTextLayoutCaches(); 160030ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initRaster(int nativeBitmapOrZero); 16027c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik private static native void native_setBitmap(int nativeCanvas, int bitmap); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, RectF bounds, 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, float l, 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF bounds, int alpha, 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int layerFlags); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, float l, 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int layerFlags); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_concat(int nCanvas, int nMatrix); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setMatrix(int nCanvas, int nMatrix); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRect(int nCanvas, 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipPath(int nativeCanvas, 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePath, 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRegion(int nativeCanvas, 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeRegion, 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetDrawFilter(int nativeCanvas, 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter); 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_getClipBounds(int nativeCanvas, 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds); 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_getCTM(int canvas, int matrix); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16337c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik RectF rect, 16347c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik int native_edgeType); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16367c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik int path, 16377c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik int native_edgeType); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16407c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik float right, float bottom, 16417c1a49f5f5ed6613d736464bf5001b777e89ced2Chris Craik int native_edgeType); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRGB(int nativeCanvas, int r, int g, 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int b); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawARGB(int nativeCanvas, int a, int r, 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int g, int b); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color, 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPaint(int nativeCanvas, int paint); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawLine(int nativeCanvas, float startX, 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startY, float stopX, 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float stopY, int paint); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, RectF rect, 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, float left, 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float top, float right, 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float bottom, int paint); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawOval(int nativeCanvas, RectF oval, 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawCircle(int nativeCanvas, float cx, 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float cy, float radius, 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawArc(int nativeCanvas, RectF oval, 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startAngle, float sweep, 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, int paint); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRoundRect(int nativeCanvas, 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, float rx, 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ry, int paint); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPath(int nativeCanvas, int path, 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 167311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int nativePaintOrZero, 16740d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int canvasDensity, 16750d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16760d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, RectF dst, 16790d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 16800d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16810d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int bitmap, 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, Rect dst, 16840d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 16850d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16860d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int[] colors, 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, float x, 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean hasAlpha, 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nMatrix, int nPaint); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMesh(int nCanvas, int nBitmap, 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int meshWidth, int meshHeight, 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, int nPaint); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawVertices(int nCanvas, int mode, int n, 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, float[] texs, int texOffset, 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, short[] indices, 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexOffset, int indexCount, int nPaint); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, char[] text, 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index, int count, float x, 17056d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float y, int paint); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, String text, 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start, int end, float x, 17086d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float y, int paint); 1709fcf2be1846935e7983ea2fe87fdd4d7af27764b6Fabrice Di Meglio 17100c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, String text, 17110c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int end, int contextStart, int contextEnd, 17126d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float x, float y, int paint); 1713f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17140c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, char[] text, 17150c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int count, int contextStart, int contextCount, 17166d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float x, float y, int paint); 1717f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, float[] pos, 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, float[] pos, 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, int path, 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 17296d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio float vOffset, 17304beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt int paint); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, int path, 17334beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float hOffset, 17344beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float vOffset, 17356d9fe5bd22b531bfce69b146254a4791c76acddcFabrice Di Meglio int paint); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPicture(int nativeCanvas, 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePicture); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void finalizer(int nativeCanvas); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1740