Canvas.java revision 2d6145993e19d2bb664766dbaf3c1e9ad3d12cdc
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.graphics; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.GraphicsOperations; 20f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannableString; 21f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannedString; 22f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.TextUtils; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.microedition.khronos.opengles.GL; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Canvas class holds the "draw" calls. To draw something, you need 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4 basic components: A Bitmap to hold the pixels, a Canvas to host 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the draw calls (writing into the bitmap), a drawing primitive (e.g. Rect, 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Path, text, Bitmap), and a paint (to describe the colors and styles for the 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing). 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Canvas { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // assigned in constructors, freed in finalizer 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int mNativeCanvas; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Our native canvas can be either a raster, gl, or picture canvas. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If we are raster, then mGL will be null, and mBitmap may or may not be 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project present (our default constructor creates a raster canvas but no 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project java-bitmap is). If we are a gl-based, then mBitmap will be null, and 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGL will not be null. Thus both cannot be non-null, but its possible 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for both to be null. 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Bitmap mBitmap; // if not null, mGL must be null 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private GL mGL; // if not null, mBitmap must be null 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // optional field set by the caller 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private DrawFilter mDrawFilter; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Package-scoped for quick access. 5196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /*package*/ int mDensity = Bitmap.DENSITY_NONE; 520d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 530d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn // Used to determine when compatibility scaling is in effect. 540d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn private int mScreenDensity = Bitmap.DENSITY_NONE; 5511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Used by native code 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings({"UnusedDeclaration"}) 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mSurfaceFormat; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating left-to-right run direction. 62f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 63f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 64f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_LTR = 0; 65f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 66f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 67f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating right-to-left run direction. 68f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 69f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 70f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_RTL = 1; 71f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 72f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct an empty raster canvas. Use setBitmap() to specify a bitmap to 7496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * draw into. The initial target density is {@link Bitmap#DENSITY_NONE}; 7596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * this will typically be replaced when a target bitmap is set for the 7696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * canvas. 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas() { 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0 means no native bitmap 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(0); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified bitmap to draw into. The bitmap 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be mutable. 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 8796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the given 8896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap's density. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(Bitmap bitmap) { 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException( 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Immutable bitmap passed to Canvas constructor"); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(bitmap.ni()); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 10096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /*package*/ Canvas(int nativeCanvas) { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeCanvas == 0) { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = nativeCanvas; 10896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified gl context. All drawing through 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this canvas will be redirected to OpenGL. Note: some features may not 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be supported in this mode (e.g. some GL implementations may not support 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * antialiasing or certain effects like ColorMatrix or certain Xfermodes). 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * However, no exception will be thrown in those cases. 11796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 11896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the initial 11996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of bitmaps as per {@link Bitmap#getDensity() Bitmap.getDensity()}. 1202d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1212d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @deprecated This constructor is not supported and should not be invoked. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(GL gl) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initGL(); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGL = gl; 12696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1282d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy 1292d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy /** 1302d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Indicates whether this Canvas uses hardware acceleration. 1312d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1322d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Note that this method does not define what type of hardware acceleration 1332d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * may or may not be used. 1342d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1352d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @return True if drawing operations are hardware accelerated, 1362d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * false otherwise. 1372d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy */ 1382d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy public boolean isHardwareAccelerated() { 1392d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy return mGL != null; 1402d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy } 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the GL object associated with this canvas, or null if it is not 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * backed by GL. 1452d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1462d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @deprecated This method is not supported and should not be invoked. 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public GL getGL() { 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mGL; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Call this to free up OpenGL resources that may be cached or allocated 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on behalf of the Canvas. Any subsequent drawing with a GL-backed Canvas 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will have to recreate those resources. 1562d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1572d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @deprecated This method is not supported and should not be invoked. 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 159caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static void freeGlCaches() { 160caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed freeCaches(); 161caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed } 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Specify a bitmap for the canvas to draw into. As a side-effect, also 16596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * updates the canvas's target density to match that of the bitmap. 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 16896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 16996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #setDensity(int) 17096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #getDensity() 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBitmap(Bitmap bitmap) { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGL != null) { 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Can't set a bitmap device on a GL canvas"); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setBitmap(mNativeCanvas, bitmap.ni()); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 18396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 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 * 1902d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @param width The width of the viewport 1912d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @param height The height of the viewport 1922d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1932d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @deprecated This method is not supported and should not be invoked. 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewport(int width, int height) { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGL != null) { 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetViewport(mNativeCanvas, width, height); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 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 * (i.e. does not support per-pixel alpha). 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the device that the current layer draws into is opaque 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean isOpaque(); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the width of the current drawing layer 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width of the current drawing layer 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getWidth(); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the height of the current drawing layer 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the height of the current drawing layer 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getHeight(); 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Returns the target density of the canvas. The default density is 22596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * derived from the density of its backing bitmap, or 22696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} if there is not one.</p> 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return Returns the current target density of the canvas, which is used 22996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 23211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 23511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Specifies the density for this Canvas' backing bitmap. This modifies 24096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * the target density of the canvas itself, as well as the density of its 24196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * backing bitmap via {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}. 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @param density The new target density of the canvas, which is used 24496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. Use 24596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} to disable bitmap scaling. 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 24811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBitmap != null) { 25211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mBitmap.setDensity(density); 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2570d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn /** @hide */ 2580d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn public void setScreenDensity(int density) { 2590d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity = density; 2600d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn } 2610d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the SAVE_FLAG constants must match their native equivalents 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current matrix when restore() is called */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MATRIX_SAVE_FLAG = 0x01; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current clip when restore() is called */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_SAVE_FLAG = 0x02; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to per-pixel alpha */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HAS_ALPHA_LAYER_SAVE_FLAG = 0x04; 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to 8-bits per color component */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FULL_COLOR_LAYER_SAVE_FLAG = 0x08; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** clip against the layer's bounds */ 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_TO_LAYER_SAVE_FLAG = 0x10; 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore everything when restore() is called */ 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALL_SAVE_FLAG = 0x1F; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Saves the current matrix and clip onto a private stack. Subsequent 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calls to translate,scale,rotate,skew,concat or clipRect,clipPath 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will all operate as usual, but when the balancing call to restore() 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is made, those calls will be forgotten, and the settings that existed 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * before the save() will be reinstated. 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Based on saveFlags, can save the current matrix and clip onto a private 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stack. Subsequent calls to translate,scale,rotate,skew,concat or 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect,clipPath will all operate as usual, but when the balancing 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * call to restore() is made, those calls will be forgotten, and the 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * settings that existed before the save() will be reinstated. 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags flag bits that specify which parts of the Canvas state 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to save/restore 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(int saveFlags); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds May be null. The maximum size the offscreen bitmap 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needs to be (in local coordinates) 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint This is copied, and is applied to the offscreen when 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * restore() is called. 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this save() 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, bounds, 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper version of saveLayer() that takes 4 values rather than a RectF. 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(float left, float top, float right, float bottom, 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint, int saveFlags) { 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, left, top, right, bottom, 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds The maximum size the offscreen bitmap needs to be 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (in local coordinates) 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha to apply to the offscreen when when it is 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawn during restore() 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this call 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha = Math.min(255, Math.max(0, alpha)); 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, bounds, alpha, saveFlags); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for saveLayerAlpha() that takes 4 values instead of a RectF. 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(float left, float top, float right, float bottom, 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int saveFlags) { 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, left, top, right, bottom, 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha, saveFlags); 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This call balances a previous call to save(), and is used to remove all 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * modifications to the matrix/clip state since the last save call. It is 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an error to call restore() more times than save() was called. 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restore(); 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of matrix/clip states on the Canvas' private stack. 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will equal # save() calls - # restore() calls. 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getSaveCount(); 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Efficient way to pop any calls to save() that happened after the save 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count reached saveCount. It is an error for saveCount to be less than 1. 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Example: 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * int count = canvas.save(); 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ... // more calls potentially to save() 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * canvas.restoreToCount(count); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // now the canvas is back in the same state it was before the initial 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // call to save(). 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveCount The save level to restore to. 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restoreToCount(int saveCount); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified translation 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dx The distance to translate in X 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dy The distance to translate in Y 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void translate(float dx, float dy); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void scale(float sx, float sy); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void scale(float sx, float sy, float px, float py) { 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(sx, sy); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void rotate(float degrees); 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void rotate(float degrees, float px, float py) { 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rotate(degrees); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified skew. 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to skew in X 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to skew in Y 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void skew(float sx, float sy); 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified matrix. 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to preconcatenate with the current matrix 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void concat(Matrix matrix) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_concat(mNativeCanvas, matrix.native_instance); 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Completely replace the current matrix with the specified matrix. If the 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix parameter is null, then the current matrix is reset to identity. 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to replace the current matrix with. If it is 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, set the current matrix to identity. 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setMatrix(Matrix matrix) { 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setMatrix(mNativeCanvas, 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matrix == null ? 0 : matrix.native_instance); 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return, in ctm, the current transformation matrix. This does not alter 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the matrix in the canvas, but just returns a copy of it. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getMatrix(Matrix ctm) { 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_getCTM(mNativeCanvas, ctm.native_instance); 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return a new matrix with a copy of the canvas' current transformation 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix. 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Matrix getMatrix() { 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m = new Matrix(); 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getMatrix(m); 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return m; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle. 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to intersect with the current clip 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(RectF rect, Region.Op op) { 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(Rect rect, Region.Op op) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(RectF rect); 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(Rect rect); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 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 boolean clipRect(float left, float top, float right, float bottom, 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Region.Op op) { 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, left, top, right, bottom, 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(float left, float top, 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(int left, int top, 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right, int bottom); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified path. 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to operate on the current clip 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path, Region.Op op) { 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipPath(mNativeCanvas, path.ni(), op.nativeInt); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified path. 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to intersect with the current clip 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipPath(path, Region.Op.INTERSECT); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified region. Note that unlike 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region, Region.Op op) { 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRegion(mNativeCanvas, region.ni(), op.nativeInt); 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified region. Note that unlike 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region) { 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipRegion(region, Region.Op.INTERSECT); 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DrawFilter getDrawFilter() { 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDrawFilter; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawFilter(DrawFilter filter) { 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter = 0; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filter != null) { 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeFilter = filter.mNativeInt; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawFilter = filter; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetDrawFilter(mNativeCanvas, nativeFilter); 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum EdgeType { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BW(0), //!< treat edges by just rounding to nearest pixel boundary 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AA(1); //!< treat edges by rounding-out, since they may be antialiased 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType(int nativeInt) { 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect the rect to compare with the current clip 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type specifies how to treat the edges (BW or antialiased) 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(RectF rect, EdgeType type) { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, rect, type.nativeInt); 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified path, after being transformed by the 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). Note: for speed it may 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return false even if the path itself might not intersect the clip 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. the bounds of the path intersects, but the path does not). 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to compare with the current clip 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the path should be considered antialiased, 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * affect a larger area (more pixels) than 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-antialiased. 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the path (transformed by the canvas' matrix) 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(Path path, EdgeType type) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, path.ni(), type.nativeInt); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to compare with the 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to compare with the current 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to compare with the 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to compare with the 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the rect should be considered antialiased, 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may affect a larger area (more 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels) than non-antialiased. 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(float left, float top, float right, float bottom, 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType type) { 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, left, top, right, bottom, 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project type.nativeInt); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds, returning true if they are non-empty. 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds Return the clip bounds here. If it is null, ignore it but 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still return true if the current clip is non-empty. 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the current clip is non-empty. 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getClipBounds(Rect bounds) { 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_getClipBounds(mNativeCanvas, bounds); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds. 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the clip bounds, or [0, 0, 0, 0] if the clip is empty. 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Rect getClipBounds() { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect r = new Rect(); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getClipBounds(r); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return r; 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified RGB color, using srcover porterduff mode. 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRGB(int r, int g, int b) { 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRGB(mNativeCanvas, r, g, b); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified ARGB color, using srcover porterduff mode. 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param a alpha component (0..255) of the color to draw onto the canvas 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawARGB(int a, int r, int g, int b) { 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawARGB(mNativeCanvas, a, r, g, b); 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 color, using srcover porterduff mode. 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw onto the canvas 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color and porter-duff xfermode. 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw with 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the porter-duff mode to apply to the color 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color, PorterDuff.Mode mode) { 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color, mode.nativeInt); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint. This is equivalent (but faster) to drawing an 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * infinitely large rectangle with the specified paint. 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw onto the canvas 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPaint(Paint paint) { 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPaint(mNativeCanvas, paint.mNativePaint); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of points. Each point is centered at the coordinate 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified by pts[], and its diameter is specified by the paint's stroke 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width (as transformed by the canvas' CTM), with special treatment for 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stroke width of 0, which always draws exactly 1 pixel (or at most 4 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if antialiasing is enabled). The shape of the point is controlled by 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the paint's Cap type. The shape is a square, unless the cap type is 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Round, in which case the shape is a circle. 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before starting to draw. 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values to process, after skipping offset 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of them. Since one point uses two values, the number of 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "points" that are drawn is really (count >> 1). 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoints(float[] pts, int offset, int count, 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() that assumes you want to draw the entire array 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPoints(float[] pts, Paint paint) { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPoints(pts, 0, pts.length, paint); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() for drawing a single point. 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoint(float x, float y, Paint paint); 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a line segment with the specified start and stop x,y coordinates, 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using the specified paint. NOTE: since a line is always "framed", the 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Style is ignored in the paint. 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startX The x-coordinate of the start point of the line 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startY The y-coordinate of the start point of the line 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the line 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLine(float startX, float startY, float stopX, float stopY, 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawLine(mNativeCanvas, startX, startY, stopX, stopY, 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of lines. Each line is taken from 4 consecutive values 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the pts array. Thus to draw 1 line, the array must contain at least 4 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. This is logically the same as drawing the array as follows: 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[0], pts[1], pts[2], pts[3]) followed by 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[4], pts[5], pts[6], pts[7]) and so on. 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values in the array to skip before drawing. 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values in the array to process, after 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * skipping "offset" of them. Since each line uses 4 values, 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of "lines" that are drawn is really 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (count >> 2). 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawLines(float[] pts, int offset, int count, 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLines(float[] pts, Paint paint) { 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawLines(pts, 0, pts.length, paint); 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to be drawn 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(RectF rect, Paint paint) { 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, rect, paint.mNativePaint); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified Paint. The rectangle 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r The rectangle to be drawn. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rectangle 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(Rect r, Paint paint) { 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawRect(r.left, r.top, r.right, r.bottom, paint); 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to be drawn 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top side of the rectangle to be drawn 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to be drawn 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom side of the rectangle to be drawn 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(float left, float top, float right, float bottom, 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, left, top, right, bottom, 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified oval using the specified paint. The oval will be 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The rectangle bounds of the oval to be drawn 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawOval(RectF oval, Paint paint) { 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawOval(mNativeCanvas, oval, paint.mNativePaint); 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified circle using the specified paint. If radius is <= 0, 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then nothing will be drawn. The circle will be filled or framed based 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Style in the paint. 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cx The x-coordinate of the center of the cirle to be drawn 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cy The y-coordinate of the center of the cirle to be drawn 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param radius The radius of the cirle to be drawn 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the circle 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawCircle(float cx, float cy, float radius, Paint paint) { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawCircle(mNativeCanvas, cx, cy, radius, 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified arc, which will be scaled to fit inside the 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified oval. If the sweep angle is >= 360, then the oval is drawn 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * completely. Note that this differs slightly from SkPath::arcTo, which 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * treats the sweep angle mod 360. 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The bounds of oval used to define the shape and size 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the arc 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startAngle Starting angle (in degrees) where the arc begins 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sweepAngle Sweep angle (in degrees) measured clockwise 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param useCenter If true, include the center of the oval in the arc, and 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close it if it is being stroked. This will draw a wedge 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the arc 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawArc(RectF oval, float startAngle, float sweepAngle, 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, Paint paint) { 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawArc(mNativeCanvas, oval, startAngle, sweepAngle, 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useCenter, paint.mNativePaint); 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified round-rect using the specified paint. The roundrect 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangular bounds of the roundRect to be drawn 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rx The x-radius of the oval used to round the corners 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ry The y-radius of the oval used to round the corners 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the roundRect 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rect == null) { 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRoundRect(mNativeCanvas, rect, rx, ry, 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified path using the specified paint. The path will be 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to be drawn 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the path 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPath(Path path, Paint paint) { 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPath(mNativeCanvas, path.ni(), paint.mNativePaint); 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void throwIfRecycled(Bitmap bitmap) { 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitmap.isRecycled()) { 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Canvas: trying to use a recycled bitmap " + bitmap); 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, with its top/left corner at (x,y), using 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint, transformed by the current matrix. 99511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 99611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 100211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If the bitmap and canvas have different densities, this function 100311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will take care of automatically scaling the bitmap to draw at the 100411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * same density as the canvas. 100511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The position of the left side of the bitmap being drawn 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The position of the top side of the bitmap being drawn 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the bitmap (may be null) 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), left, top, 10140d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, mDensity, mScreenDensity, 10150d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn bitmap.mDensity); 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 102211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 102311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 102911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 103011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 103111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 103211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 103311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 10460d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, 10470d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity, bitmap.mDensity); 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 105411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 105511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 106111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 106211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 106311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 106411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 106511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 10780d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn paint != null ? paint.mNativePaint : 0, 10790d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity, bitmap.mDensity); 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Treat the specified array of colors as a bitmap, and draw it. This gives 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result as first creating a bitmap from the array, and then 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing it, but this method avoids explicitly creating a bitmap object 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be more efficient if the colors are changing often. 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of colors representing the pixels of the bitmap 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Offset into the array of colors for the first pixel 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of of colors in the array between rows (must be 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * >= width or <= -width). 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The X coordinate for where to draw the bitmap 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The Y coordinate for where to draw the bitmap 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasAlpha True if the alpha channel of the colors contains valid 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. If false, the alpha byte is ignored (assumed to 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be 0xFF for every pixel). 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, float x, 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, boolean hasAlpha, 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check for valid input 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick escape if there's nothing to draw 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // punch down to native for the actual draw 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, colors, offset, stride, x, y, width, height, hasAlpha, 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, boolean hasAlpha, 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // call through to the common float version 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawBitmap(colors, offset, stride, (float)x, (float)y, width, height, 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hasAlpha, paint); 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap using the specified matrix. 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix used to transform the bitmap when it is drawn 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMatrix(mNativeCanvas, bitmap.ni(), matrix.ni(), 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkRange(int length, int offset, int count) { 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | count) < 0 || offset + count > length) { 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap through the mesh, where mesh vertices are evenly 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed across the bitmap. There are meshWidth+1 vertices across, and 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meshHeight+1 vertices down. The verts array is accessed in row-major 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * order, so that the first meshWidth+1 vertices are distributed across the 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * top of the bitmap from left to right. A more general version of this 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methid is drawVertices(). 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw using the mesh 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshWidth The number of columns in the mesh. Nothing is drawn if 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshHeight The number of rows in the mesh. Nothing is drawn if 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of x,y pairs, specifying where the mesh should be 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawn. There must be at least 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (meshWidth+1) * (meshHeight+1) * 2 + meshOffset values 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the array 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of verts elements to skip before drawing 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. Specifies a color at each vertex, which is 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interpolated across the cell, and whose values are 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * multiplied by the corresponding bitmap colors. If not null, 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there must be at least (meshWidth+1) * (meshHeight+1) + 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colorOffset values in the array. 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of color elements to skip before drawing 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, Paint paint) { 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((meshWidth | meshHeight | vertOffset | colorOffset) < 0) { 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (meshWidth == 0 || meshHeight == 0) { 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = (meshWidth + 1) * (meshHeight + 1); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we mul by 2 since we need two floats per vertex 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, count * 2); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no mul by 2, since we need only 1 color per vertex 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, count); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMesh(mNativeCanvas, bitmap.ni(), meshWidth, meshHeight, 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project verts, vertOffset, colors, colorOffset, 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum VertexMode { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLES(0), 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_STRIP(1), 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_FAN(2); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VertexMode(int nativeInt) { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the array of vertices, interpreted as triangles (based on mode). The 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verts array is required, and specifies the x,y pairs for each vertex. If 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texs is non-null, then it is used to specify the coordinate in shader 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinates to use at each vertex (the paint must have a shader in this 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * case). If there is no texs array, but there is a color array, then each 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color is interpolated across its corresponding triangle in a gradient. If 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * both texs and colors arrays are present, then they behave as before, but 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the resulting color at each pixels is the result of multiplying the 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colors from the shader and the color-gradient together. The indices array 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is optional, but if it is present, then it is used to specify the index 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of each triangle, rather than just walking through the arrays in order. 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode How to interpret the array of vertices 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertexCount The number of values in the vertices array (and 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding texs and colors arrays if non-null). Each logical 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex is two values (x, y), vertexCount must be a multiple of 2. 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of vertices for the mesh 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of values in the verts to skip before drawing. 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texs May be null. If not null, specifies the coordinates to sample 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into the current shader (e.g. bitmap tile or gradient) 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texOffset Number of values in texs to skip before drawing. 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. If not null, specifies a color for each 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex, to be interpolated across the triangle. 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of values in colors to skip before drawing. 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indices If not null, array of indices to reference into the 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex (texs, colors) array. 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indexCount number of entries in the indices array (if not null). 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Specifies the shader to use if the texs array is non-null. 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawVertices(VertexMode mode, int vertexCount, 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] texs, int texOffset, 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project short[] indices, int indexOffset, 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexCount, Paint paint) { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, vertexCount); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (texs != null) { 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(texs.length, texOffset, vertexCount); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 125692ce5734b52ef014c80cc6335112a027188b3eb6Erik Faye-Lund checkRange(colors.length, colorOffset, vertexCount / 2); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indices != null) { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(indices.length, indexOffset, indexCount); 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawVertices(mNativeCanvas, mode.nativeInt, vertexCount, verts, 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vertOffset, texs, texOffset, colors, colorOffset, 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project indices, indexOffset, indexCount, paint.mNativePaint); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(char[] text, int index, int count, float x, float y, 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((index | count | (index + count) | 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (text.length - index - count)) < 0) { 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1281f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, index, count, x, y, paint.mBidiFlags, 1282f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1294f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawText(String text, float x, float y, Paint paint) { 1295f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, 0, text.length(), x, y, paint.mBidiFlags, 1296f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 1297f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The origin is interpreted based on the Align setting in the paint. 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text to draw 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(String text, int start, int end, float x, float y, 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((start | end | (end - start) | (text.length() - end)) < 0) { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1315f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, start, end, x, y, paint.mBidiFlags, 1316f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified range of text, specified by start/end, with its 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin at (x,y), in the specified Paint. The origin is interpreted 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on the Align setting in the Paint. 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to draw 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of origin for where to draw the text 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of origin for where to draw the text 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(CharSequence text, int start, int end, float x, 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, Paint paint) { 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof String || text instanceof SpannedString || 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text instanceof SpannableString) { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text.toString(), start, end, x, y, 1337f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1338f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((GraphicsOperations) text).drawText(this, start, end, x, y, 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 1341f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 1342f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt char[] buf = TemporaryBuffer.obtain(end - start); 1343f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TextUtils.getChars(text, start, end, buf, 0); 1344f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, buf, 0, end - start, x, y, 1345f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1346f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TemporaryBuffer.recycle(buf); 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1348f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1349f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1350f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1351f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1352f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1353f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1354f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 1355f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * 1356f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 1357f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param index the start of the text to render. Data before this position 1358f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * can be used for shaping context. 1359f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param length the length of the text to render. Data at or after this 1360f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * position (start + length) can be used for shaping context. 1361f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1362f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 13632d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @param dir the run direction, either {@link #DIRECTION_LTR} or 13642d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * {@link #DIRECTION_RTL}. 1365f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1366f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1367f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1368f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawTextRun(char[] text, int index, int length, float x, float y, int dir, 1369f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt Paint paint) { 1370f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1371f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1372f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1373f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1374f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1375f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1376f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1377f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if ((index | length | text.length - index - length) < 0) { 1378f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1379f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1380f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1381f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IllegalArgumentException("unknown dir: " + dir); 1382f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1383f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1384f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawTextRun(mNativeCanvas, text, index, length, x, y, dir, paint.mNativePaint); 1385f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1386f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1387f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1388f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1389f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1390f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1391f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 1392f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * 1393f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 1394f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param start the start of the text to render. Data before this position 1395f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * can be used for shaping context. 1396f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param end the end of the text to render. Data at or after this 1397f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * position can be used for shaping context. 1398f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1399f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 1400f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param dir the run direction, either 0 for LTR or 1 for RTL. 1401f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1402f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1403f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1404f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawTextRun(CharSequence text, int start, int end, float x, 1405f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int dir, Paint paint) { 1406f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1407f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1408f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1409f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1410f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1411f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1412f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1413f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if ((start | end | end - start | text.length() - end) < 0) { 1414f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1415f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1416f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1417f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt int flags = dir == 0 ? 0 : 1; 1418f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1419f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text instanceof String || text instanceof SpannedString || 1420f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text instanceof SpannableString) { 1421f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawTextRun(mNativeCanvas, text.toString(), start, end, x, y, 1422f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt flags, paint.mNativePaint); 1423f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 1424f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt ((GraphicsOperations) text).drawTextRun(this, start, end, x, y, flags, 1425f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint); 1426f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] buf = TemporaryBuffer.obtain(end - start); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.getChars(text, start, end, buf, 0); 1429f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawTextRun(mNativeCanvas, buf, 0, end - start, x, y, 1430f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt flags, paint.mNativePaint); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TemporaryBuffer.recycle(buf); 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the first character to draw 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of characters to draw, starting from index. 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * character 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(char[] text, int index, int count, float[] pos, 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length || count*2 > pos.length) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, index, count, pos, 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each character 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(String text, float[] pos, Paint paint) { 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length()*2 > pos.length) { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, pos, paint.mNativePaint); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(char[] text, int index, int count, Path path, 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, float vOffset, Paint paint) { 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length) { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, index, count, 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project path.ni(), hOffset, vOffset, 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(String text, Path path, float hOffset, 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, Paint paint) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length() > 0) { 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, path.ni(), 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hOffset, vOffset, paint.mNativePaint); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Save the canvas state, draw the picture, and restore the canvas state. 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This differs from picture.draw(canvas), which does not perform any 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * save/restore. 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param picture The picture to be drawn 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture.endRecording(); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPicture(mNativeCanvas, picture.ni()); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, RectF dst) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(dst.width() / picture.getWidth(), 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.height() / picture.getHeight()); 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, Rect dst) { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale((float)dst.width() / picture.getWidth(), 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float)dst.height() / picture.getHeight()); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() throws Throwable { 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.finalize(); 15564566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach // If the constructor threw an exception before setting mNativeCanvas, the native finalizer 15574566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach // must not be invoked. 15584566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach if (mNativeCanvas != 0) { 15594566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach finalizer(mNativeCanvas); 15604566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1563caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed /** 1564caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * Free up as much memory as possible from private caches (e.g. fonts, 1565caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * images) 1566caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * 1567caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * @hide - for now 1568caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed */ 1569caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static native void freeCaches(); 1570caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initRaster(int nativeBitmapOrZero); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initGL(); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setBitmap(int nativeCanvas, int bitmap); 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetViewport(int nCanvas, int w, int h); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, RectF bounds, 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, float l, 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF bounds, int alpha, 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int layerFlags); 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, float l, 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int layerFlags); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_concat(int nCanvas, int nMatrix); 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setMatrix(int nCanvas, int nMatrix); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRect(int nCanvas, 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipPath(int nativeCanvas, 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePath, 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRegion(int nativeCanvas, 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeRegion, 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetDrawFilter(int nativeCanvas, 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter); 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_getClipBounds(int nativeCanvas, 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_getCTM(int canvas, int matrix); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int path, 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRGB(int nativeCanvas, int r, int g, 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int b); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawARGB(int nativeCanvas, int a, int r, 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int g, int b); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color, 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPaint(int nativeCanvas, int paint); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawLine(int nativeCanvas, float startX, 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startY, float stopX, 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float stopY, int paint); 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, RectF rect, 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, float left, 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float top, float right, 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float bottom, int paint); 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawOval(int nativeCanvas, RectF oval, 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawCircle(int nativeCanvas, float cx, 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float cy, float radius, 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawArc(int nativeCanvas, RectF oval, 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startAngle, float sweep, 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, int paint); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRoundRect(int nativeCanvas, 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, float rx, 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ry, int paint); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPath(int nativeCanvas, int path, 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 164511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int nativePaintOrZero, 16460d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int canvasDensity, 16470d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16480d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, RectF dst, 16510d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 16520d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16530d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int bitmap, 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, Rect dst, 16560d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 16570d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 16580d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int[] colors, 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, float x, 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean hasAlpha, 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nMatrix, int nPaint); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMesh(int nCanvas, int nBitmap, 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int meshWidth, int meshHeight, 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, int nPaint); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawVertices(int nCanvas, int mode, int n, 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, float[] texs, int texOffset, 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, short[] indices, 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexOffset, int indexCount, int nPaint); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, char[] text, 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index, int count, float x, 1677f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, String text, 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start, int end, float x, 1680f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 1681f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1682f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt private static native void native_drawTextRun(int nativeCanvas, String 1683f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text, int start, int end, float x, float y, int flags, int paint); 1684f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1685f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt private static native void native_drawTextRun(int nativeCanvas, char[] 1686f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text, int start, int len, float x, float y, int flags, int paint); 1687f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, float[] pos, 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, float[] pos, 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, int path, 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, int paint); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, int path, 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, int paint); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPicture(int nativeCanvas, 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePicture); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void finalizer(int nativeCanvas); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1708