19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 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.drawable; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.*; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 23dfab363807b3b44be4032e410f016e0a0d018426Romain Guyimport android.view.ViewDebug; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParser; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParserException; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 3095930e13faac8c17dabfaa1478089baa772f091bRomain Guy * A specialized Drawable that fills the Canvas with a specified color. 3195930e13faac8c17dabfaa1478089baa772f091bRomain Guy * Note that a ColorDrawable ignores the ColorFilter. 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>It can be defined in an XML file with the <code><color></code> element.</p> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#ColorDrawable_color 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ColorDrawable extends Drawable { 38dfab363807b3b44be4032e410f016e0a0d018426Romain Guy @ViewDebug.ExportedProperty(deepExport = true, prefix = "state_") 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ColorState mState; 4095930e13faac8c17dabfaa1478089baa772f091bRomain Guy private final Paint mPaint = new Paint(); 415f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy private boolean mMutated; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a new black ColorDrawable. 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ColorDrawable() { 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(null); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a new ColorDrawable with the specified color. 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The color to draw. 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ColorDrawable(int color) { 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(null); 5770d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase setColor(color); 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ColorDrawable(ColorState state) { 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = new ColorState(state); 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getChangingConfigurations() { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.getChangingConfigurations() | mState.mChangingConfigurations; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 695f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy /** 705f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy * A mutable BitmapDrawable still shares its Bitmap with any other Drawable 715f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy * that comes from the same resource. 725f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy * 735f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy * @return This drawable. 745f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy */ 755f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy @Override 765f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy public Drawable mutate() { 775f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy if (!mMutated && super.mutate() == this) { 785f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy mState = new ColorState(mState); 795f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy mMutated = true; 805f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy } 815f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy return this; 825f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy } 835f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 8695930e13faac8c17dabfaa1478089baa772f091bRomain Guy if ((mState.mUseColor >>> 24) != 0) { 8795930e13faac8c17dabfaa1478089baa772f091bRomain Guy mPaint.setColor(mState.mUseColor); 8895930e13faac8c17dabfaa1478089baa772f091bRomain Guy canvas.drawRect(getBounds(), mPaint); 8995930e13faac8c17dabfaa1478089baa772f091bRomain Guy } 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9370d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * Gets the drawable's color value. 9470d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * 9570d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * @return int The color to draw. 9670d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase */ 9770d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase public int getColor() { 9870d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase return mState.mUseColor; 9970d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase } 10070d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase 10170d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase /** 10270d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * Sets the drawable's color value. This action will clobber the results of prior calls to 10370d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * {@link #setAlpha(int)} on this object, which side-affected the underlying color. 10470d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * 10570d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase * @param color The color to draw. 10670d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase */ 10770d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase public void setColor(int color) { 1089891e1fce5f29d0421d34aa481037417bd70853dChet Haase if (mState.mBaseColor != color || mState.mUseColor != color) { 1099891e1fce5f29d0421d34aa481037417bd70853dChet Haase invalidateSelf(); 1109891e1fce5f29d0421d34aa481037417bd70853dChet Haase mState.mBaseColor = mState.mUseColor = color; 1119891e1fce5f29d0421d34aa481037417bd70853dChet Haase } 11270d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase } 11370d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase 11470d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the alpha value of this drawable's color. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A value between 0 and 255. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getAlpha() { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mState.mUseColor >>> 24; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the color's alpha value. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha value to set, between 0 and 255. 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setAlpha(int alpha) { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha += alpha >> 7; // make it 0..256 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseAlpha = mState.mBaseColor >>> 24; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int useAlpha = baseAlpha * alpha >> 8; 13241bff38d3060dbcb55133cedaf5d962c3082efc2Chet Haase int oldUseColor = mState.mUseColor; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState.mUseColor = (mState.mBaseColor << 8 >>> 8) | (useAlpha << 24); 13441bff38d3060dbcb55133cedaf5d962c3082efc2Chet Haase if (oldUseColor != mState.mUseColor) { 13541bff38d3060dbcb55133cedaf5d962c3082efc2Chet Haase invalidateSelf(); 13641bff38d3060dbcb55133cedaf5d962c3082efc2Chet Haase } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Setting a color filter on a ColorDrawable has no effect. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorFilter Ignore. 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setColorFilter(ColorFilter colorFilter) { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getOpacity() { 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mState.mUseColor >>> 24) { 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 255: 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return PixelFormat.OPAQUE; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 0: 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return PixelFormat.TRANSPARENT; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return PixelFormat.TRANSLUCENT; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void inflate(Resources r, XmlPullParser parser, AttributeSet attrs) 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws XmlPullParserException, IOException { 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.inflate(r, parser, attrs); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = r.obtainAttributes(attrs, com.android.internal.R.styleable.ColorDrawable); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = mState.mBaseColor; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project color = a.getColor(com.android.internal.R.styleable.ColorDrawable_color, color); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState.mBaseColor = mState.mUseColor = color; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ConstantState getConstantState() { 1736efd2bad954e0e5bd74916a32f036a0f149dcd4dChristopher Lais mState.mChangingConfigurations = getChangingConfigurations(); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mState; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final static class ColorState extends ConstantState { 17870d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase int mBaseColor; // base color, independent of setAlpha() 179dfab363807b3b44be4032e410f016e0a0d018426Romain Guy @ViewDebug.ExportedProperty 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mUseColor; // basecolor modulated by setAlpha() 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mChangingConfigurations; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ColorState(ColorState state) { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state != null) { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaseColor = state.mBaseColor; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mUseColor = state.mUseColor; 1875f49c3023a512efbef8bc9515d310c7a72be4af2Romain Guy mChangingConfigurations = state.mChangingConfigurations; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable newDrawable() { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new ColorDrawable(this); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 197c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn public Drawable newDrawable(Resources res) { 198c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn return new ColorDrawable(this); 199c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn } 200c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn 201c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn @Override 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getChangingConfigurations() { 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mChangingConfigurations; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 207