DragView.java revision 043f2af567178b82b0b41f12d379e7dd12da2936
100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato/* 200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Copyright (C) 2008 The Android Open Source Project 300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Licensed under the Apache License, Version 2.0 (the "License"); 500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * you may not use this file except in compliance with the License. 600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * You may obtain a copy of the License at 700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * http://www.apache.org/licenses/LICENSE-2.0 900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 1000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Unless required by applicable law or agreed to in writing, software 1100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * distributed under the License is distributed on an "AS IS" BASIS, 1200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * See the License for the specific language governing permissions and 1400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * limitations under the License. 1500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 1600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 1700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 1800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratopackage com.android.launcher2; 1900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 20a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroyimport android.animation.ValueAnimator; 21a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroyimport android.animation.ValueAnimator.AnimatorUpdateListener; 22de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroyimport android.content.res.Resources; 2300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Bitmap; 2400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Canvas; 2500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Matrix; 2600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Paint; 27b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chungimport android.graphics.Point; 2861967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chungimport android.graphics.PorterDuff; 2961967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chungimport android.graphics.PorterDuffColorFilter; 30e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohenimport android.graphics.Rect; 3100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.view.View; 32a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroyimport android.view.animation.DecelerateInterpolator; 3300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 34120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohenimport com.android.launcher.R; 35120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen 36a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroypublic class DragView extends View { 37867ca62c0e4b811d46734ff940d59c7a787525c8Winson Chung private static float sDragAlpha = 1f; 387bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung 3900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private Bitmap mBitmap; 40ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen private Bitmap mCrossFadeBitmap; 4100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private Paint mPaint; 4200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private int mRegistrationX; 4300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private int mRegistrationY; 4400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 45b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung private Point mDragVisualizeOffset = null; 46e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen private Rect mDragRegion = null; 478dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen private DragLayer mDragLayer = null; 48fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen private boolean mHasDrawn = false; 49ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen private float mCrossFadeProgress = 0f; 50a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 51a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy ValueAnimator mAnim; 52a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy private float mOffsetX = 0.0f; 53a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy private float mOffsetY = 0.0f; 54043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private float mInitialScale = 1f; 5500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 5600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 5700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Construct the drag view. 5800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * <p> 5900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * The registration point is the point inside our view that the touch events should 6000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * be centered upon. 6100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 628dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param launcher The Launcher instance 6300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @param bitmap The view that we're dragging around. We scale it up when we draw it. 6400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @param registrationX The x coordinate of the registration point. 6500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @param registrationY The y coordinate of the registration point. 6600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 678dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public DragView(Launcher launcher, Bitmap bitmap, int registrationX, int registrationY, 6872d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung int left, int top, int width, int height, final float initialScale) { 698dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen super(launcher); 708dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragLayer = launcher.getDragLayer(); 71043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mInitialScale = initialScale; 7200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 73de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy final Resources res = getResources(); 747bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung final float offsetX = res.getDimensionPixelSize(R.dimen.dragViewOffsetX); 757bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung final float offsetY = res.getDimensionPixelSize(R.dimen.dragViewOffsetY); 767bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung final float scaleDps = res.getDimensionPixelSize(R.dimen.dragViewScale); 777bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung final float scale = (width + scaleDps) / width; 78a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy 79a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy // Animate the view into the correct position 80a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mAnim = ValueAnimator.ofFloat(0.0f, 1.0f); 817bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mAnim.setDuration(150); 82a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mAnim.addUpdateListener(new AnimatorUpdateListener() { 83a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy @Override 84a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy public void onAnimationUpdate(ValueAnimator animation) { 85a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy final float value = (Float) animation.getAnimatedValue(); 86a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy 87a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy final int deltaX = (int) ((value * offsetX) - mOffsetX); 88a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy final int deltaY = (int) ((value * offsetY) - mOffsetY); 89a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy 90a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mOffsetX += deltaX; 91a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mOffsetY += deltaY; 9272d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung setScaleX(initialScale + (value * (scale - initialScale))); 9372d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung setScaleY(initialScale + (value * (scale - initialScale))); 94867ca62c0e4b811d46734ff940d59c7a787525c8Winson Chung if (sDragAlpha != 1f) { 95867ca62c0e4b811d46734ff940d59c7a787525c8Winson Chung setAlpha(sDragAlpha * value + (1f - value)); 96867ca62c0e4b811d46734ff940d59c7a787525c8Winson Chung } 97a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy 98a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy if (getParent() == null) { 99a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy animation.cancel(); 100a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy } else { 1017bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationX(getTranslationX() + deltaX); 1027bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationY(getTranslationY() + deltaY); 103a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy } 104a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy } 105a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy }); 10600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 1077bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mBitmap = Bitmap.createBitmap(bitmap, left, top, width, height); 108e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen setDragRegion(new Rect(0, 0, width, height)); 10900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 11000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // The point in our scaled bitmap that the touch events are located 111a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mRegistrationX = registrationX; 112a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mRegistrationY = registrationY; 11362bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy 11462bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy // Force a measure, because Workspace uses getMeasuredHeight() before the layout pass 11562bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy int ms = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 11662bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy measure(ms, ms); 1176cfafb96c3b108fec90897c1a251229be9861ddbMichael Jurka mPaint = new Paint(Paint.FILTER_BITMAP_FLAG); 11862bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy } 11962bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy 12062bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy public float getOffsetY() { 12162bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy return mOffsetY; 12200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 12300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 124a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka public int getDragRegionLeft() { 125e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen return mDragRegion.left; 126a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 127a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 128a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka public int getDragRegionTop() { 129e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen return mDragRegion.top; 130a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 131a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 132a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka public int getDragRegionWidth() { 133e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen return mDragRegion.width(); 134a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 135a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 136a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka public int getDragRegionHeight() { 137e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen return mDragRegion.height(); 138e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen } 139e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen 140b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung public void setDragVisualizeOffset(Point p) { 141b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung mDragVisualizeOffset = p; 142b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung } 143b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung 144b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung public Point getDragVisualizeOffset() { 145b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung return mDragVisualizeOffset; 146b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung } 147b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung 148e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen public void setDragRegion(Rect r) { 149e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen mDragRegion = r; 150e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen } 151e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen 152e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen public Rect getDragRegion() { 153e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen return mDragRegion; 154a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 155a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 156043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung public float getInitialScale() { 157043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung return mInitialScale; 158043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 159043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 160043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung public void updateInitialScaleToCurrentScale() { 161043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mInitialScale = getScaleX(); 162043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 163043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 16400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato @Override 16500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 166eebd92496e2fbfbd81ea871862a681929101ba06Joe Onorato setMeasuredDimension(mBitmap.getWidth(), mBitmap.getHeight()); 16700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 16800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 16900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato @Override 17000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato protected void onDraw(Canvas canvas) { 17100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (false) { 17200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // for debugging 17300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato Paint p = new Paint(); 17400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato p.setStyle(Paint.Style.FILL); 175eecf02da58adef5486bf0c9ff7127ea891f457a4Winson Chung p.setColor(0x66ffffff); 17600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato canvas.drawRect(0, 0, getWidth(), getHeight(), p); 17700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 178a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy 179fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen mHasDrawn = true; 180ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen boolean crossFade = mCrossFadeProgress > 0 && mCrossFadeBitmap != null; 181ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen if (crossFade) { 182ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen int alpha = crossFade ? (int) (255 * (1 - mCrossFadeProgress)) : 255; 183ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen mPaint.setAlpha(alpha); 184ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen } 18500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato canvas.drawBitmap(mBitmap, 0.0f, 0.0f, mPaint); 186ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen if (crossFade) { 187ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen mPaint.setAlpha((int) (255 * mCrossFadeProgress)); 188ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen canvas.save(); 189ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen float sX = (mBitmap.getWidth() * 1.0f) / mCrossFadeBitmap.getWidth(); 190ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen float sY = (mBitmap.getHeight() * 1.0f) / mCrossFadeBitmap.getHeight(); 191ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen canvas.scale(sX, sY); 192ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen canvas.drawBitmap(mCrossFadeBitmap, 0.0f, 0.0f, mPaint); 193ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen canvas.restore(); 194ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen } 195ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen } 196ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen 197ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen public void setCrossFadeBitmap(Bitmap crossFadeBitmap) { 198ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen mCrossFadeBitmap = crossFadeBitmap; 199ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen } 200ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen 201ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen public void crossFade(int duration) { 202ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen ValueAnimator va = ValueAnimator.ofFloat(0f, 1f); 203ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen va.setDuration(duration); 204ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen va.setInterpolator(new DecelerateInterpolator(1.5f)); 205ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen va.addUpdateListener(new AnimatorUpdateListener() { 206ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen @Override 207ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen public void onAnimationUpdate(ValueAnimator animation) { 208ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen mCrossFadeProgress = animation.getAnimatedFraction(); 209ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen } 210ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen }); 211ed66b2bac7447febe2e405b4ce725cae4f6b5988Adam Cohen va.start(); 21200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 21300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 21461967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung public void setColor(int color) { 2156cfafb96c3b108fec90897c1a251229be9861ddbMichael Jurka if (mPaint == null) { 2166cfafb96c3b108fec90897c1a251229be9861ddbMichael Jurka mPaint = new Paint(Paint.FILTER_BITMAP_FLAG); 2176cfafb96c3b108fec90897c1a251229be9861ddbMichael Jurka } 21861967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung if (color != 0) { 21961967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung mPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP)); 22061967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung } else { 22161967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung mPaint.setColorFilter(null); 22261967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung } 22300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato invalidate(); 22400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 22500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 226fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen public boolean hasDrawn() { 227fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen return mHasDrawn; 228fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen } 229fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen 2303e8f811f31a2275e778244427271f77f4116c08bAdam Cohen @Override 2313e8f811f31a2275e778244427271f77f4116c08bAdam Cohen public void setAlpha(float alpha) { 2323e8f811f31a2275e778244427271f77f4116c08bAdam Cohen super.setAlpha(alpha); 2333e8f811f31a2275e778244427271f77f4116c08bAdam Cohen mPaint.setAlpha((int) (255 * alpha)); 2343e8f811f31a2275e778244427271f77f4116c08bAdam Cohen invalidate(); 2353e8f811f31a2275e778244427271f77f4116c08bAdam Cohen } 2363e8f811f31a2275e778244427271f77f4116c08bAdam Cohen 23700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 23800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Create a window containing this view and show it. 23900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 24000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @param windowToken obtained from v.getWindowToken() from one of your views 2418dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param touchX the x coordinate the user touched in DragLayer coordinates 2428dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param touchY the y coordinate the user touched in DragLayer coordinates 24300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 2448dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public void show(int touchX, int touchY) { 2458dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragLayer.addView(this); 246043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 247043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Enable hw-layers on this view 248043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung setLayerType(View.LAYER_TYPE_HARDWARE, null); 249043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 250043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Start the pick-up animation 2518dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen DragLayer.LayoutParams lp = new DragLayer.LayoutParams(0, 0); 2528dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen lp.width = mBitmap.getWidth(); 2538dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen lp.height = mBitmap.getHeight(); 2548dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen lp.customPosition = true; 2558dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen setLayoutParams(lp); 2567bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationX(touchX - mRegistrationX); 2577bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationY(touchY - mRegistrationY); 258a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy mAnim.start(); 25900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 260716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen 2617bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung public void cancelAnimation() { 2627bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung if (mAnim != null && mAnim.isRunning()) { 2637bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mAnim.cancel(); 2647bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 2657bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 2667bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung 2677bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung public void resetLayoutParams() { 2687bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mOffsetX = mOffsetY = 0; 2697bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung requestLayout(); 2707bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 2717bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung 27200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 27300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Move the window containing this view. 27400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 2758dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param touchX the x coordinate the user touched in DragLayer coordinates 2768dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param touchY the y coordinate the user touched in DragLayer coordinates 27700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 27800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato void move(int touchX, int touchY) { 2797bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationX(touchX - mRegistrationX + (int) mOffsetX); 2807bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung setTranslationY(touchY - mRegistrationY + (int) mOffsetY); 28100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 28200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 28300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato void remove() { 2847bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung if (getParent() != null) { 285043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Disable hw-layers on this view 286043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung setLayerType(View.LAYER_TYPE_NONE, null); 287043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 2887bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mDragLayer.removeView(DragView.this); 2897bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 2906f13342ffd3f968de9ff86b988621cc91d94adffPatrick Dubroy } 29100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato} 29200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 293