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 com.android.gallery3d.R; 20 import com.android.gallery3d.app.AbstractGalleryActivity; 21 import com.android.gallery3d.app.AlbumSetDataLoader; 22 import com.android.gallery3d.data.MediaObject; 23 import com.android.gallery3d.data.Path; 24 import com.android.gallery3d.glrenderer.ColorTexture; 25 import com.android.gallery3d.glrenderer.FadeInTexture; 26 import com.android.gallery3d.glrenderer.GLCanvas; 27 import com.android.gallery3d.glrenderer.ResourceTexture; 28 import com.android.gallery3d.glrenderer.Texture; 29 import com.android.gallery3d.glrenderer.TiledTexture; 30 import com.android.gallery3d.glrenderer.UploadedTexture; 31 import com.android.gallery3d.ui.AlbumSetSlidingWindow.AlbumSetEntry; 32 33 public class AlbumSetSlotRenderer extends AbstractSlotRenderer { 34 @SuppressWarnings("unused") 35 private static final String TAG = "AlbumSetView"; 36 private static final int CACHE_SIZE = 96; 37 private final int mPlaceholderColor; 38 39 private final ColorTexture mWaitLoadingTexture; 40 private final ResourceTexture mCameraOverlay; 41 private final AbstractGalleryActivity mActivity; 42 private final SelectionManager mSelectionManager; 43 protected final LabelSpec mLabelSpec; 44 45 protected AlbumSetSlidingWindow mDataWindow; 46 private SlotView mSlotView; 47 48 private int mPressedIndex = -1; 49 private boolean mAnimatePressedUp; 50 private Path mHighlightItemPath = null; 51 private boolean mInSelectionMode; 52 53 public static class LabelSpec { 54 public int labelBackgroundHeight; 55 public int titleOffset; 56 public int countOffset; 57 public int titleFontSize; 58 public int countFontSize; 59 public int leftMargin; 60 public int iconSize; 61 public int titleRightMargin; 62 public int backgroundColor; 63 public int titleColor; 64 public int countColor; 65 public int borderSize; 66 } 67 68 public AlbumSetSlotRenderer(AbstractGalleryActivity activity, 69 SelectionManager selectionManager, 70 SlotView slotView, LabelSpec labelSpec, int placeholderColor) { 71 super (activity); 72 mActivity = activity; 73 mSelectionManager = selectionManager; 74 mSlotView = slotView; 75 mLabelSpec = labelSpec; 76 mPlaceholderColor = placeholderColor; 77 78 mWaitLoadingTexture = new ColorTexture(mPlaceholderColor); 79 mWaitLoadingTexture.setSize(1, 1); 80 mCameraOverlay = new ResourceTexture(activity, 81 R.drawable.ic_cameraalbum_overlay); 82 } 83 84 public void setPressedIndex(int index) { 85 if (mPressedIndex == index) return; 86 mPressedIndex = index; 87 mSlotView.invalidate(); 88 } 89 90 public void setPressedUp() { 91 if (mPressedIndex == -1) return; 92 mAnimatePressedUp = true; 93 mSlotView.invalidate(); 94 } 95 96 public void setHighlightItemPath(Path path) { 97 if (mHighlightItemPath == path) return; 98 mHighlightItemPath = path; 99 mSlotView.invalidate(); 100 } 101 102 public void setModel(AlbumSetDataLoader model) { 103 if (mDataWindow != null) { 104 mDataWindow.setListener(null); 105 mDataWindow = null; 106 mSlotView.setSlotCount(0); 107 } 108 if (model != null) { 109 mDataWindow = new AlbumSetSlidingWindow( 110 mActivity, model, mLabelSpec, CACHE_SIZE); 111 mDataWindow.setListener(new MyCacheListener()); 112 mSlotView.setSlotCount(mDataWindow.size()); 113 } 114 } 115 116 private static Texture checkLabelTexture(Texture texture) { 117 return ((texture instanceof UploadedTexture) 118 && ((UploadedTexture) texture).isUploading()) 119 ? null 120 : texture; 121 } 122 123 private static Texture checkContentTexture(Texture texture) { 124 return ((texture instanceof TiledTexture) 125 && !((TiledTexture) texture).isReady()) 126 ? null 127 : texture; 128 } 129 130 @Override 131 public int renderSlot(GLCanvas canvas, int index, int pass, int width, int height) { 132 AlbumSetEntry entry = mDataWindow.get(index); 133 int renderRequestFlags = 0; 134 renderRequestFlags |= renderContent(canvas, entry, width, height); 135 renderRequestFlags |= renderLabel(canvas, entry, width, height); 136 renderRequestFlags |= renderOverlay(canvas, index, entry, width, height); 137 return renderRequestFlags; 138 } 139 140 protected int renderOverlay( 141 GLCanvas canvas, int index, AlbumSetEntry entry, int width, int height) { 142 int renderRequestFlags = 0; 143 if (entry.album != null && entry.album.isCameraRoll()) { 144 int uncoveredHeight = height - mLabelSpec.labelBackgroundHeight; 145 int dim = uncoveredHeight / 2; 146 mCameraOverlay.draw(canvas, (width - dim) / 2, 147 (uncoveredHeight - dim) / 2, dim, dim); 148 } 149 if (mPressedIndex == index) { 150 if (mAnimatePressedUp) { 151 drawPressedUpFrame(canvas, width, height); 152 renderRequestFlags |= SlotView.RENDER_MORE_FRAME; 153 if (isPressedUpFrameFinished()) { 154 mAnimatePressedUp = false; 155 mPressedIndex = -1; 156 } 157 } else { 158 drawPressedFrame(canvas, width, height); 159 } 160 } else if ((mHighlightItemPath != null) && (mHighlightItemPath == entry.setPath)) { 161 drawSelectedFrame(canvas, width, height); 162 } else if (mInSelectionMode && mSelectionManager.isItemSelected(entry.setPath)) { 163 drawSelectedFrame(canvas, width, height); 164 } 165 return renderRequestFlags; 166 } 167 168 protected int renderContent( 169 GLCanvas canvas, AlbumSetEntry entry, int width, int height) { 170 int renderRequestFlags = 0; 171 172 Texture content = checkContentTexture(entry.content); 173 if (content == null) { 174 content = mWaitLoadingTexture; 175 entry.isWaitLoadingDisplayed = true; 176 } else if (entry.isWaitLoadingDisplayed) { 177 entry.isWaitLoadingDisplayed = false; 178 content = new FadeInTexture(mPlaceholderColor, entry.bitmapTexture); 179 entry.content = content; 180 } 181 drawContent(canvas, content, width, height, entry.rotation); 182 if ((content instanceof FadeInTexture) && 183 ((FadeInTexture) content).isAnimating()) { 184 renderRequestFlags |= SlotView.RENDER_MORE_FRAME; 185 } 186 187 return renderRequestFlags; 188 } 189 190 protected int renderLabel( 191 GLCanvas canvas, AlbumSetEntry entry, int width, int height) { 192 Texture content = checkLabelTexture(entry.labelTexture); 193 if (content == null) { 194 content = mWaitLoadingTexture; 195 } 196 int b = AlbumLabelMaker.getBorderSize(); 197 int h = mLabelSpec.labelBackgroundHeight; 198 content.draw(canvas, -b, height - h + b, width + b + b, h); 199 200 return 0; 201 } 202 203 @Override 204 public void prepareDrawing() { 205 mInSelectionMode = mSelectionManager.inSelectionMode(); 206 } 207 208 private class MyCacheListener implements AlbumSetSlidingWindow.Listener { 209 210 @Override 211 public void onSizeChanged(int size) { 212 mSlotView.setSlotCount(size); 213 } 214 215 @Override 216 public void onContentChanged() { 217 mSlotView.invalidate(); 218 } 219 } 220 221 public void pause() { 222 mDataWindow.pause(); 223 } 224 225 public void resume() { 226 mDataWindow.resume(); 227 } 228 229 @Override 230 public void onVisibleRangeChanged(int visibleStart, int visibleEnd) { 231 if (mDataWindow != null) { 232 mDataWindow.setActiveWindow(visibleStart, visibleEnd); 233 } 234 } 235 236 @Override 237 public void onSlotSizeChanged(int width, int height) { 238 if (mDataWindow != null) { 239 mDataWindow.onSlotSizeChanged(width, height); 240 } 241 } 242 } 243
