Canvas.java revision 96e240f25a97c10bba863df328ed73a82c34ff61
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.TextUtils; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.SpannedString; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.SpannableString; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.GraphicsOperations; 2311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackbornimport android.util.DisplayMetrics; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.microedition.khronos.opengles.GL; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Canvas class holds the "draw" calls. To draw something, you need 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4 basic components: A Bitmap to hold the pixels, a Canvas to host 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the draw calls (writing into the bitmap), a drawing primitive (e.g. Rect, 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Path, text, Bitmap), and a paint (to describe the colors and styles for the 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing). 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Canvas { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // assigned in constructors, freed in finalizer 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int mNativeCanvas; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Our native canvas can be either a raster, gl, or picture canvas. 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If we are raster, then mGL will be null, and mBitmap may or may not be 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project present (our default constructor creates a raster canvas but no 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project java-bitmap is). If we are a gl-based, then mBitmap will be null, and 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGL will not be null. Thus both cannot be non-null, but its possible 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for both to be null. 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Bitmap mBitmap; // if not null, mGL must be null 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private GL mGL; // if not null, mBitmap must be null 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // optional field set by the caller 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private DrawFilter mDrawFilter; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn // Package-scoped for quick access. 5296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn /*package*/ int mDensity = Bitmap.DENSITY_NONE; 5311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Used by native code 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings({"UnusedDeclaration"}) 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mSurfaceFormat; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct an empty raster canvas. Use setBitmap() to specify a bitmap to 6096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * draw into. The initial target density is {@link Bitmap#DENSITY_NONE}; 6196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * this will typically be replaced when a target bitmap is set for the 6296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * canvas. 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas() { 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0 means no native bitmap 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(0); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified bitmap to draw into. The bitmap 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be mutable. 7296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 7396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the given 7496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap's density. 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(Bitmap bitmap) { 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException( 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Immutable bitmap passed to Canvas constructor"); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(bitmap.ni()); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 8696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /*package*/ Canvas(int nativeCanvas) { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeCanvas == 0) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = nativeCanvas; 9496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified gl context. All drawing through 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this canvas will be redirected to OpenGL. Note: some features may not 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be supported in this mode (e.g. some GL implementations may not support 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * antialiasing or certain effects like ColorMatrix or certain Xfermodes). 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * However, no exception will be thrown in those cases. 10396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 10496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the initial 10596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * density of bitmaps as per {@link Bitmap#getDensity() Bitmap.getDensity()}. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(GL gl) { 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initGL(); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGL = gl; 11096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the GL object associated with this canvas, or null if it is not 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * backed by GL. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public GL getGL() { 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mGL; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Call this to free up OpenGL resources that may be cached or allocated 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on behalf of the Canvas. Any subsequent drawing with a GL-backed Canvas 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will have to recreate those resources. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 126caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static void freeGlCaches() { 127caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed freeCaches(); 128caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * Specify a bitmap for the canvas to draw into. As a side-effect, also 13296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * updates the canvas's target density to match that of the bitmap. 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 13596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 13696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #setDensity(int) 13796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #getDensity() 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBitmap(Bitmap bitmap) { 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGL != null) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Can't set a bitmap device on a GL canvas"); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setBitmap(mNativeCanvas, bitmap.ni()); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 15096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the viewport dimensions if this canvas is GL based. If it is not, 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this method is ignored and no exception is thrown. 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the viewport 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the viewport 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewport(int width, int height) { 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGL != null) { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetViewport(mNativeCanvas, width, height); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the device that the current layer draws into is opaque 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. does not support per-pixel alpha). 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the device that the current layer draws into is opaque 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean isOpaque(); 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the width of the current drawing layer 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width of the current drawing layer 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getWidth(); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the height of the current drawing layer 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the height of the current drawing layer 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getHeight(); 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Returns the target density of the canvas. The default density is 19096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * derived from the density of its backing bitmap, or 19196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} if there is not one.</p> 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return Returns the current target density of the canvas, which is used 19496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 19711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 20011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20496e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Specifies the density for this Canvas' backing bitmap. This modifies 20596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * the target density of the canvas itself, as well as the density of its 20696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * backing bitmap via {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}. 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @param density The new target density of the canvas, which is used 20996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. Use 21096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} to disable bitmap scaling. 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 21311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBitmap != null) { 21711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mBitmap.setDensity(density); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the SAVE_FLAG constants must match their native equivalents 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current matrix when restore() is called */ 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MATRIX_SAVE_FLAG = 0x01; 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current clip when restore() is called */ 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_SAVE_FLAG = 0x02; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to per-pixel alpha */ 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HAS_ALPHA_LAYER_SAVE_FLAG = 0x04; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to 8-bits per color component */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FULL_COLOR_LAYER_SAVE_FLAG = 0x08; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** clip against the layer's bounds */ 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_TO_LAYER_SAVE_FLAG = 0x10; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore everything when restore() is called */ 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALL_SAVE_FLAG = 0x1F; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Saves the current matrix and clip onto a private stack. Subsequent 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calls to translate,scale,rotate,skew,concat or clipRect,clipPath 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will all operate as usual, but when the balancing call to restore() 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is made, those calls will be forgotten, and the settings that existed 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * before the save() will be reinstated. 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Based on saveFlags, can save the current matrix and clip onto a private 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stack. Subsequent calls to translate,scale,rotate,skew,concat or 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect,clipPath will all operate as usual, but when the balancing 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * call to restore() is made, those calls will be forgotten, and the 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * settings that existed before the save() will be reinstated. 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags flag bits that specify which parts of the Canvas state 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to save/restore 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(int saveFlags); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds May be null. The maximum size the offscreen bitmap 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needs to be (in local coordinates) 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint This is copied, and is applied to the offscreen when 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * restore() is called. 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this save() 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, bounds, 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper version of saveLayer() that takes 4 values rather than a RectF. 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(float left, float top, float right, float bottom, 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint, int saveFlags) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, left, top, right, bottom, 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds The maximum size the offscreen bitmap needs to be 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (in local coordinates) 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha to apply to the offscreen when when it is 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawn during restore() 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this call 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha = Math.min(255, Math.max(0, alpha)); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, bounds, alpha, saveFlags); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for saveLayerAlpha() that takes 4 values instead of a RectF. 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(float left, float top, float right, float bottom, 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int saveFlags) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, left, top, right, bottom, 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha, saveFlags); 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This call balances a previous call to save(), and is used to remove all 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * modifications to the matrix/clip state since the last save call. It is 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an error to call restore() more times than save() was called. 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restore(); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of matrix/clip states on the Canvas' private stack. 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will equal # save() calls - # restore() calls. 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getSaveCount(); 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Efficient way to pop any calls to save() that happened after the save 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count reached saveCount. It is an error for saveCount to be less than 1. 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Example: 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * int count = canvas.save(); 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ... // more calls potentially to save() 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * canvas.restoreToCount(count); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // now the canvas is back in the same state it was before the initial 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // call to save(). 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveCount The save level to restore to. 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restoreToCount(int saveCount); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified translation 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dx The distance to translate in X 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dy The distance to translate in Y 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void translate(float dx, float dy); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void scale(float sx, float sy); 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void scale(float sx, float sy, float px, float py) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(sx, sy); 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void rotate(float degrees); 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void rotate(float degrees, float px, float py) { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rotate(degrees); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified skew. 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to skew in X 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to skew in Y 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void skew(float sx, float sy); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified matrix. 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to preconcatenate with the current matrix 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void concat(Matrix matrix) { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_concat(mNativeCanvas, matrix.native_instance); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Completely replace the current matrix with the specified matrix. If the 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix parameter is null, then the current matrix is reset to identity. 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to replace the current matrix with. If it is 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, set the current matrix to identity. 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setMatrix(Matrix matrix) { 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setMatrix(mNativeCanvas, 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matrix == null ? 0 : matrix.native_instance); 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return, in ctm, the current transformation matrix. This does not alter 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the matrix in the canvas, but just returns a copy of it. 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getMatrix(Matrix ctm) { 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_getCTM(mNativeCanvas, ctm.native_instance); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return a new matrix with a copy of the canvas' current transformation 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix. 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Matrix getMatrix() { 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m = new Matrix(); 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getMatrix(m); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return m; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle. 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to intersect with the current clip 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(RectF rect, Region.Op op) { 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(Rect rect, Region.Op op) { 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rect.left, rect.top, rect.right, rect.bottom, 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(RectF rect); 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(Rect rect); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(float left, float top, float right, float bottom, 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Region.Op op) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRect(mNativeCanvas, left, top, right, bottom, 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project op.nativeInt); 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(float left, float top, 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(int left, int top, 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right, int bottom); 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified path. 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to operate on the current clip 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path, Region.Op op) { 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipPath(mNativeCanvas, path.ni(), op.nativeInt); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified path. 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to intersect with the current clip 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path) { 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipPath(path, Region.Op.INTERSECT); 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified region. Note that unlike 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region, Region.Op op) { 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRegion(mNativeCanvas, region.ni(), op.nativeInt); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified region. Note that unlike 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region) { 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipRegion(region, Region.Op.INTERSECT); 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DrawFilter getDrawFilter() { 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDrawFilter; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawFilter(DrawFilter filter) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter = 0; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filter != null) { 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeFilter = filter.mNativeInt; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawFilter = filter; 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetDrawFilter(mNativeCanvas, nativeFilter); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum EdgeType { 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BW(0), //!< treat edges by just rounding to nearest pixel boundary 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AA(1); //!< treat edges by rounding-out, since they may be antialiased 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType(int nativeInt) { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect the rect to compare with the current clip 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type specifies how to treat the edges (BW or antialiased) 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(RectF rect, EdgeType type) { 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, rect, type.nativeInt); 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified path, after being transformed by the 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). Note: for speed it may 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return false even if the path itself might not intersect the clip 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. the bounds of the path intersects, but the path does not). 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to compare with the current clip 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the path should be considered antialiased, 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * affect a larger area (more pixels) than 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-antialiased. 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the path (transformed by the canvas' matrix) 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(Path path, EdgeType type) { 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, path.ni(), type.nativeInt); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to compare with the 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to compare with the current 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to compare with the 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to compare with the 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the rect should be considered antialiased, 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may affect a larger area (more 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels) than non-antialiased. 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(float left, float top, float right, float bottom, 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType type) { 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_quickReject(mNativeCanvas, left, top, right, bottom, 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project type.nativeInt); 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds, returning true if they are non-empty. 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds Return the clip bounds here. If it is null, ignore it but 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still return true if the current clip is non-empty. 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the current clip is non-empty. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getClipBounds(Rect bounds) { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_getClipBounds(mNativeCanvas, bounds); 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds. 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the clip bounds, or [0, 0, 0, 0] if the clip is empty. 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Rect getClipBounds() { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect r = new Rect(); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getClipBounds(r); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return r; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified RGB color, using srcover porterduff mode. 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRGB(int r, int g, int b) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRGB(mNativeCanvas, r, g, b); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified ARGB color, using srcover porterduff mode. 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param a alpha component (0..255) of the color to draw onto the canvas 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawARGB(int a, int r, int g, int b) { 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawARGB(mNativeCanvas, a, r, g, b); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color, using srcover porterduff mode. 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw onto the canvas 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color); 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color and porter-duff xfermode. 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw with 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the porter-duff mode to apply to the color 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color, PorterDuff.Mode mode) { 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color, mode.nativeInt); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint. This is equivalent (but faster) to drawing an 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * infinitely large rectangle with the specified paint. 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw onto the canvas 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPaint(Paint paint) { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPaint(mNativeCanvas, paint.mNativePaint); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of points. Each point is centered at the coordinate 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified by pts[], and its diameter is specified by the paint's stroke 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width (as transformed by the canvas' CTM), with special treatment for 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stroke width of 0, which always draws exactly 1 pixel (or at most 4 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if antialiasing is enabled). The shape of the point is controlled by 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the paint's Cap type. The shape is a square, unless the cap type is 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Round, in which case the shape is a circle. 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before starting to draw. 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values to process, after skipping offset 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of them. Since one point uses two values, the number of 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "points" that are drawn is really (count >> 1). 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoints(float[] pts, int offset, int count, 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() that assumes you want to draw the entire array 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPoints(float[] pts, Paint paint) { 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPoints(pts, 0, pts.length, paint); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() for drawing a single point. 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoint(float x, float y, Paint paint); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a line segment with the specified start and stop x,y coordinates, 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using the specified paint. NOTE: since a line is always "framed", the 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Style is ignored in the paint. 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startX The x-coordinate of the start point of the line 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startY The y-coordinate of the start point of the line 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the line 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLine(float startX, float startY, float stopX, float stopY, 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawLine(mNativeCanvas, startX, startY, stopX, stopY, 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of lines. Each line is taken from 4 consecutive values 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the pts array. Thus to draw 1 line, the array must contain at least 4 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. This is logically the same as drawing the array as follows: 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[0], pts[1], pts[2], pts[3]) followed by 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[4], pts[5], pts[6], pts[7]) and so on. 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values in the array to skip before drawing. 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values in the array to process, after 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * skipping "offset" of them. Since each line uses 4 values, 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of "lines" that are drawn is really 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (count >> 2). 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawLines(float[] pts, int offset, int count, 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLines(float[] pts, Paint paint) { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawLines(pts, 0, pts.length, paint); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to be drawn 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(RectF rect, Paint paint) { 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, rect, paint.mNativePaint); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified Paint. The rectangle 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r The rectangle to be drawn. 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rectangle 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(Rect r, Paint paint) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawRect(r.left, r.top, r.right, r.bottom, paint); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to be drawn 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top side of the rectangle to be drawn 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to be drawn 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom side of the rectangle to be drawn 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(float left, float top, float right, float bottom, 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, left, top, right, bottom, 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified oval using the specified paint. The oval will be 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The rectangle bounds of the oval to be drawn 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawOval(RectF oval, Paint paint) { 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawOval(mNativeCanvas, oval, paint.mNativePaint); 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified circle using the specified paint. If radius is <= 0, 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then nothing will be drawn. The circle will be filled or framed based 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Style in the paint. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cx The x-coordinate of the center of the cirle to be drawn 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cy The y-coordinate of the center of the cirle to be drawn 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param radius The radius of the cirle to be drawn 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the circle 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawCircle(float cx, float cy, float radius, Paint paint) { 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawCircle(mNativeCanvas, cx, cy, radius, 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified arc, which will be scaled to fit inside the 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified oval. If the sweep angle is >= 360, then the oval is drawn 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * completely. Note that this differs slightly from SkPath::arcTo, which 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * treats the sweep angle mod 360. 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The bounds of oval used to define the shape and size 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the arc 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startAngle Starting angle (in degrees) where the arc begins 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sweepAngle Sweep angle (in degrees) measured clockwise 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param useCenter If true, include the center of the oval in the arc, and 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close it if it is being stroked. This will draw a wedge 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the arc 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawArc(RectF oval, float startAngle, float sweepAngle, 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, Paint paint) { 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawArc(mNativeCanvas, oval, startAngle, sweepAngle, 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useCenter, paint.mNativePaint); 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified round-rect using the specified paint. The roundrect 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangular bounds of the roundRect to be drawn 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rx The x-radius of the oval used to round the corners 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ry The y-radius of the oval used to round the corners 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the roundRect 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rect == null) { 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRoundRect(mNativeCanvas, rect, rx, ry, 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 path using the specified paint. The path will be 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to be drawn 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the path 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPath(Path path, Paint paint) { 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPath(mNativeCanvas, path.ni(), paint.mNativePaint); 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void throwIfRecycled(Bitmap bitmap) { 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitmap.isRecycled()) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Canvas: trying to use a recycled bitmap " + bitmap); 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, with its top/left corner at (x,y), using 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint, transformed by the current matrix. 95511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 95611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 96211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If the bitmap and canvas have different densities, this function 96311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will take care of automatically scaling the bitmap to draw at the 96411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * same density as the canvas. 96511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The position of the left side of the bitmap being drawn 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The position of the top side of the bitmap being drawn 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the bitmap (may be null) 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), left, top, 97411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn paint != null ? paint.mNativePaint : 0, mDensity, bitmap.mDensity); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 98111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 98211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 98811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 98911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 99011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 99111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 99211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 101211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 101311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 101911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 102011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 102111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 102211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 102311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Treat the specified array of colors as a bitmap, and draw it. This gives 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result as first creating a bitmap from the array, and then 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing it, but this method avoids explicitly creating a bitmap object 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be more efficient if the colors are changing often. 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of colors representing the pixels of the bitmap 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Offset into the array of colors for the first pixel 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stride The number of of colors in the array between rows (must be 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * >= width or <= -width). 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The X coordinate for where to draw the bitmap 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The Y coordinate for where to draw the bitmap 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasAlpha True if the alpha channel of the colors contains valid 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. If false, the alpha byte is ignored (assumed to 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be 0xFF for every pixel). 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, float x, 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, boolean hasAlpha, 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check for valid input 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick escape if there's nothing to draw 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // punch down to native for the actual draw 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, colors, offset, stride, x, y, width, height, hasAlpha, 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, int height, boolean hasAlpha, 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // call through to the common float version 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawBitmap(colors, offset, stride, (float)x, (float)y, width, height, 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hasAlpha, paint); 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap using the specified matrix. 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix used to transform the bitmap when it is drawn 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMatrix(mNativeCanvas, bitmap.ni(), matrix.ni(), 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void checkRange(int length, int offset, int count) { 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | count) < 0 || offset + count > length) { 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap through the mesh, where mesh vertices are evenly 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed across the bitmap. There are meshWidth+1 vertices across, and 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meshHeight+1 vertices down. The verts array is accessed in row-major 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * order, so that the first meshWidth+1 vertices are distributed across the 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * top of the bitmap from left to right. A more general version of this 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methid is drawVertices(). 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw using the mesh 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshWidth The number of columns in the mesh. Nothing is drawn if 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshHeight The number of rows in the mesh. Nothing is drawn if 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of x,y pairs, specifying where the mesh should be 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawn. There must be at least 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (meshWidth+1) * (meshHeight+1) * 2 + meshOffset values 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the array 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of verts elements to skip before drawing 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. Specifies a color at each vertex, which is 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interpolated across the cell, and whose values are 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * multiplied by the corresponding bitmap colors. If not null, 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there must be at least (meshWidth+1) * (meshHeight+1) + 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colorOffset values in the array. 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of color elements to skip before drawing 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, Paint paint) { 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((meshWidth | meshHeight | vertOffset | colorOffset) < 0) { 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (meshWidth == 0 || meshHeight == 0) { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = (meshWidth + 1) * (meshHeight + 1); 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we mul by 2 since we need two floats per vertex 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, count * 2); 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no mul by 2, since we need only 1 color per vertex 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, count); 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMesh(mNativeCanvas, bitmap.ni(), meshWidth, meshHeight, 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project verts, vertOffset, colors, colorOffset, 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum VertexMode { 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLES(0), 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_STRIP(1), 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_FAN(2); 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VertexMode(int nativeInt) { 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int nativeInt; 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the array of vertices, interpreted as triangles (based on mode). The 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verts array is required, and specifies the x,y pairs for each vertex. If 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texs is non-null, then it is used to specify the coordinate in shader 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinates to use at each vertex (the paint must have a shader in this 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * case). If there is no texs array, but there is a color array, then each 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color is interpolated across its corresponding triangle in a gradient. If 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * both texs and colors arrays are present, then they behave as before, but 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the resulting color at each pixels is the result of multiplying the 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colors from the shader and the color-gradient together. The indices array 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is optional, but if it is present, then it is used to specify the index 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of each triangle, rather than just walking through the arrays in order. 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode How to interpret the array of vertices 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertexCount The number of values in the vertices array (and 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding texs and colors arrays if non-null). Each logical 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex is two values (x, y), vertexCount must be a multiple of 2. 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of vertices for the mesh 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of values in the verts to skip before drawing. 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texs May be null. If not null, specifies the coordinates to sample 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into the current shader (e.g. bitmap tile or gradient) 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texOffset Number of values in texs to skip before drawing. 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. If not null, specifies a color for each 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex, to be interpolated across the triangle. 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of values in colors to skip before drawing. 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indices If not null, array of indices to reference into the 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex (texs, colors) array. 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indexCount number of entries in the indices array (if not null). 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Specifies the shader to use if the texs array is non-null. 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawVertices(VertexMode mode, int vertexCount, 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] texs, int texOffset, 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project short[] indices, int indexOffset, 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexCount, Paint paint) { 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, vertexCount); 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (texs != null) { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(texs.length, texOffset, vertexCount); 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, vertexCount); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indices != null) { 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(indices.length, indexOffset, indexCount); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawVertices(mNativeCanvas, mode.nativeInt, vertexCount, verts, 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vertOffset, texs, texOffset, colors, colorOffset, 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project indices, indexOffset, indexCount, paint.mNativePaint); 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(char[] text, int index, int count, float x, float y, 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((index | count | (index + count) | 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (text.length - index - count)) < 0) { 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text, index, count, x, y, 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawText(String text, float x, float y, Paint paint); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The origin is interpreted based on the Align setting in the paint. 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text to draw 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(String text, int start, int end, float x, float y, 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((start | end | (end - start) | (text.length() - end)) < 0) { 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text, start, end, x, y, 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified range of text, specified by start/end, with its 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin at (x,y), in the specified Paint. The origin is interpreted 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on the Align setting in the Paint. 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to draw 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of origin for where to draw the text 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of origin for where to draw the text 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawText(CharSequence text, int start, int end, float x, 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, Paint paint) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof String || text instanceof SpannedString || 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text instanceof SpannableString) { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text.toString(), start, end, x, y, 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (text instanceof GraphicsOperations) { 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((GraphicsOperations) text).drawText(this, start, end, x, y, 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] buf = TemporaryBuffer.obtain(end - start); 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.getChars(text, start, end, buf, 0); 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawText(buf, 0, end - start, x, y, paint); 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TemporaryBuffer.recycle(buf); 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the first character to draw 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of characters to draw, starting from index. 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * character 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(char[] text, int index, int count, float[] pos, 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint paint) { 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length || count*2 > pos.length) { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, index, count, pos, 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each character 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(String text, float[] pos, Paint paint) { 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length()*2 > pos.length) { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, pos, paint.mNativePaint); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(char[] text, int index, int count, Path path, 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, float vOffset, Paint paint) { 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length) { 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, index, count, 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project path.ni(), hOffset, vOffset, 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(String text, Path path, float hOffset, 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, Paint paint) { 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length() > 0) { 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, path.ni(), 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hOffset, vOffset, paint.mNativePaint); 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Save the canvas state, draw the picture, and restore the canvas state. 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This differs from picture.draw(canvas), which does not perform any 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * save/restore. 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param picture The picture to be drawn 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture) { 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture.endRecording(); 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPicture(mNativeCanvas, picture.ni()); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, RectF dst) { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(dst.width() / picture.getWidth(), 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dst.height() / picture.getHeight()); 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, Rect dst) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale((float)dst.width() / picture.getWidth(), 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float)dst.height() / picture.getHeight()); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() throws Throwable { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.finalize(); 14264566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach // If the constructor threw an exception before setting mNativeCanvas, the native finalizer 14274566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach // must not be invoked. 14284566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach if (mNativeCanvas != 0) { 14294566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach finalizer(mNativeCanvas); 14304566b79736f236c0f605c57130d1fa954f4642d6Phil Dubach } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1433caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed /** 1434caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * Free up as much memory as possible from private caches (e.g. fonts, 1435caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * images) 1436caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * 1437caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * @hide - for now 1438caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed */ 1439caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static native void freeCaches(); 1440caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initRaster(int nativeBitmapOrZero); 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initGL(); 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setBitmap(int nativeCanvas, int bitmap); 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetViewport(int nCanvas, int w, int h); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, RectF bounds, 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, float l, 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF bounds, int alpha, 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int layerFlags); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, float l, 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int layerFlags); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_concat(int nCanvas, int nMatrix); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setMatrix(int nCanvas, int nMatrix); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRect(int nCanvas, 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipPath(int nativeCanvas, 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePath, 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRegion(int nativeCanvas, 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeRegion, 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetDrawFilter(int nativeCanvas, 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_getClipBounds(int nativeCanvas, 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_getCTM(int canvas, int matrix); 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int path, 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int native_edgeType); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRGB(int nativeCanvas, int r, int g, 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int b); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawARGB(int nativeCanvas, int a, int r, 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int g, int b); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color, 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPaint(int nativeCanvas, int paint); 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawLine(int nativeCanvas, float startX, 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startY, float stopX, 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float stopY, int paint); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, RectF rect, 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, float left, 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float top, float right, 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float bottom, int paint); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawOval(int nativeCanvas, RectF oval, 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawCircle(int nativeCanvas, float cx, 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float cy, float radius, 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawArc(int nativeCanvas, RectF oval, 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startAngle, float sweep, 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, int paint); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRoundRect(int nativeCanvas, 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, float rx, 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ry, int paint); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPath(int nativeCanvas, int path, 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 151511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int nativePaintOrZero, 151611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int canvasDensity, int bitmapDensity); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, RectF dst, 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int bitmap, 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, Rect dst, 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int[] colors, 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, float x, 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean hasAlpha, 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nMatrix, int nPaint); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMesh(int nCanvas, int nBitmap, 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int meshWidth, int meshHeight, 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, int nPaint); 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawVertices(int nCanvas, int mode, int n, 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, float[] texs, int texOffset, 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, short[] indices, 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexOffset, int indexCount, int nPaint); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, char[] text, 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index, int count, float x, 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int paint); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, String text, 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start, int end, float x, 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int paint); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, float[] pos, 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, float[] pos, 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, int path, 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, int paint); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, int path, 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float vOffset, int paint); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPicture(int nativeCanvas, 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePicture); 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void finalizer(int nativeCanvas); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1565