1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.ui; 18 19 import android.content.Context; 20 21 import com.android.gallery3d.app.AlbumSetDataLoader; 22 import com.android.gallery3d.app.GalleryActivity; 23 import com.android.gallery3d.data.MediaObject; 24 import com.android.gallery3d.data.Path; 25 import com.android.gallery3d.ui.AlbumSetSlidingWindow.AlbumSetEntry; 26 27 public class AlbumSetSlotRenderer extends AbstractSlotRenderer { 28 @SuppressWarnings("unused") 29 private static final String TAG = "AlbumSetView"; 30 private static final int CACHE_SIZE = 96; 31 private static final int PLACEHOLDER_COLOR = 0xFF222222; 32 33 private final ColorTexture mWaitLoadingTexture; 34 private final GalleryActivity mActivity; 35 private final SelectionManager mSelectionManager; 36 protected final LabelSpec mLabelSpec; 37 38 protected AlbumSetSlidingWindow mDataWindow; 39 private SlotView mSlotView; 40 41 private int mPressedIndex = -1; 42 private boolean mAnimatePressedUp; 43 private Path mHighlightItemPath = null; 44 private boolean mInSelectionMode; 45 46 public static class LabelSpec { 47 public int labelBackgroundHeight; 48 public int titleOffset; 49 public int countOffset; 50 public int titleFontSize; 51 public int countFontSize; 52 public int leftMargin; 53 public int iconSize; 54 } 55 AlbumSetSlotRenderer(GalleryActivity activity, SelectionManager selectionManager, SlotView slotView, LabelSpec labelSpec)56 public AlbumSetSlotRenderer(GalleryActivity activity, SelectionManager selectionManager, 57 SlotView slotView, LabelSpec labelSpec) { 58 super ((Context) activity); 59 mActivity = activity; 60 mSelectionManager = selectionManager; 61 mSlotView = slotView; 62 mLabelSpec = labelSpec; 63 64 mWaitLoadingTexture = new ColorTexture(PLACEHOLDER_COLOR); 65 mWaitLoadingTexture.setSize(1, 1); 66 67 Context context = activity.getAndroidContext(); 68 } 69 setPressedIndex(int index)70 public void setPressedIndex(int index) { 71 if (mPressedIndex == index) return; 72 mPressedIndex = index; 73 mSlotView.invalidate(); 74 } 75 setPressedUp()76 public void setPressedUp() { 77 if (mPressedIndex == -1) return; 78 mAnimatePressedUp = true; 79 mSlotView.invalidate(); 80 } 81 setHighlightItemPath(Path path)82 public void setHighlightItemPath(Path path) { 83 if (mHighlightItemPath == path) return; 84 mHighlightItemPath = path; 85 mSlotView.invalidate(); 86 } 87 setModel(AlbumSetDataLoader model)88 public void setModel(AlbumSetDataLoader model) { 89 if (mDataWindow != null) { 90 mDataWindow.setListener(null); 91 mDataWindow = null; 92 mSlotView.setSlotCount(0); 93 } 94 if (model != null) { 95 mDataWindow = new AlbumSetSlidingWindow( 96 mActivity, model, mLabelSpec, CACHE_SIZE); 97 mDataWindow.setListener(new MyCacheListener()); 98 mSlotView.setSlotCount(mDataWindow.size()); 99 } 100 } 101 checkTexture(Texture texture)102 private static Texture checkTexture(Texture texture) { 103 return ((texture instanceof UploadedTexture) 104 && ((UploadedTexture) texture).isUploading()) 105 ? null 106 : texture; 107 } 108 109 @Override renderSlot(GLCanvas canvas, int index, int pass, int width, int height)110 public int renderSlot(GLCanvas canvas, int index, int pass, int width, int height) { 111 AlbumSetEntry entry = mDataWindow.get(index); 112 int renderRequestFlags = 0; 113 renderRequestFlags |= renderContent(canvas, entry, width, height); 114 renderRequestFlags |= renderLabel(canvas, entry, width, height); 115 renderRequestFlags |= renderOverlay(canvas, index, entry, width, height); 116 return renderRequestFlags; 117 } 118 renderOverlay( GLCanvas canvas, int index, AlbumSetEntry entry, int width, int height)119 protected int renderOverlay( 120 GLCanvas canvas, int index, AlbumSetEntry entry, int width, int height) { 121 int renderRequestFlags = 0; 122 if (mPressedIndex == index) { 123 if (mAnimatePressedUp) { 124 drawPressedUpFrame(canvas, width, height); 125 renderRequestFlags |= SlotView.RENDER_MORE_FRAME; 126 if (isPressedUpFrameFinished()) { 127 mAnimatePressedUp = false; 128 mPressedIndex = -1; 129 } 130 } else { 131 drawPressedFrame(canvas, width, height); 132 } 133 } else if ((mHighlightItemPath != null) && (mHighlightItemPath == entry.setPath)) { 134 drawSelectedFrame(canvas, width, height); 135 } else if (mInSelectionMode && mSelectionManager.isItemSelected(entry.setPath)) { 136 drawSelectedFrame(canvas, width, height); 137 } 138 return renderRequestFlags; 139 } 140 renderContent( GLCanvas canvas, AlbumSetEntry entry, int width, int height)141 protected int renderContent( 142 GLCanvas canvas, AlbumSetEntry entry, int width, int height) { 143 int renderRequestFlags = 0; 144 145 Texture content = checkTexture(entry.content); 146 if (content == null) { 147 content = mWaitLoadingTexture; 148 entry.isWaitLoadingDisplayed = true; 149 } else if (entry.isWaitLoadingDisplayed) { 150 entry.isWaitLoadingDisplayed = false; 151 content = new FadeInTexture(PLACEHOLDER_COLOR, entry.bitmapTexture); 152 entry.content = content; 153 } 154 drawContent(canvas, content, width, height, entry.rotation); 155 if ((content instanceof FadeInTexture) && 156 ((FadeInTexture) content).isAnimating()) { 157 renderRequestFlags |= SlotView.RENDER_MORE_FRAME; 158 } 159 160 if (entry.mediaType == MediaObject.MEDIA_TYPE_VIDEO) { 161 drawVideoOverlay(canvas, width, height); 162 } 163 164 if (entry.isPanorama) { 165 drawPanoramaBorder(canvas, width, height); 166 } 167 168 return renderRequestFlags; 169 } 170 renderLabel( GLCanvas canvas, AlbumSetEntry entry, int width, int height)171 protected int renderLabel( 172 GLCanvas canvas, AlbumSetEntry entry, int width, int height) { 173 Texture content = checkTexture(entry.labelTexture); 174 if (content != null) { 175 int b = AlbumLabelMaker.getBorderSize(); 176 int h = content.getHeight(); 177 content.draw(canvas, -b, height - h + b, width + b + b, h); 178 } 179 return 0; 180 } 181 182 @Override prepareDrawing()183 public void prepareDrawing() { 184 mInSelectionMode = mSelectionManager.inSelectionMode(); 185 } 186 187 private class MyCacheListener implements AlbumSetSlidingWindow.Listener { 188 189 @Override onSizeChanged(int size)190 public void onSizeChanged(int size) { 191 mSlotView.setSlotCount(size); 192 } 193 194 @Override onContentChanged()195 public void onContentChanged() { 196 mSlotView.invalidate(); 197 } 198 } 199 pause()200 public void pause() { 201 mDataWindow.pause(); 202 } 203 resume()204 public void resume() { 205 mDataWindow.resume(); 206 } 207 208 @Override onVisibleRangeChanged(int visibleStart, int visibleEnd)209 public void onVisibleRangeChanged(int visibleStart, int visibleEnd) { 210 if (mDataWindow != null) { 211 mDataWindow.setActiveWindow(visibleStart, visibleEnd); 212 } 213 } 214 215 @Override onSlotSizeChanged(int width, int height)216 public void onSlotSizeChanged(int width, int height) { 217 if (mDataWindow != null) { 218 mDataWindow.onSlotSizeChanged(width, height); 219 } 220 } 221 } 222