diff options
Diffstat (limited to 'src/com/android/gallery3d/ui/AlbumSetSlidingWindow.java')
| -rw-r--r-- | src/com/android/gallery3d/ui/AlbumSetSlidingWindow.java | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/src/com/android/gallery3d/ui/AlbumSetSlidingWindow.java b/src/com/android/gallery3d/ui/AlbumSetSlidingWindow.java deleted file mode 100644 index 8149df4b3..000000000 --- a/src/com/android/gallery3d/ui/AlbumSetSlidingWindow.java +++ /dev/null @@ -1,549 +0,0 @@ -/*T - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.gallery3d.ui; - -import android.graphics.Bitmap; -import android.os.Message; - -import com.android.gallery3d.R; -import com.android.gallery3d.app.AbstractGalleryActivity; -import com.android.gallery3d.app.AlbumSetDataLoader; -import com.android.gallery3d.common.Utils; -import com.android.gallery3d.data.DataSourceType; -import com.android.gallery3d.data.MediaItem; -import com.android.gallery3d.data.MediaObject; -import com.android.gallery3d.data.MediaSet; -import com.android.gallery3d.data.Path; -import com.android.gallery3d.glrenderer.BitmapTexture; -import com.android.gallery3d.glrenderer.Texture; -import com.android.gallery3d.glrenderer.TextureUploader; -import com.android.gallery3d.glrenderer.TiledTexture; -import com.android.gallery3d.util.Future; -import com.android.gallery3d.util.FutureListener; -import com.android.gallery3d.util.ThreadPool; - -public class AlbumSetSlidingWindow implements AlbumSetDataLoader.DataListener { - private static final String TAG = "AlbumSetSlidingWindow"; - private static final int MSG_UPDATE_ALBUM_ENTRY = 1; - - public static interface Listener { - public void onSizeChanged(int size); - public void onContentChanged(); - } - - private final AlbumSetDataLoader mSource; - private int mSize; - - private int mContentStart = 0; - private int mContentEnd = 0; - - private int mActiveStart = 0; - private int mActiveEnd = 0; - - private Listener mListener; - - private final AlbumSetEntry mData[]; - private final SynchronizedHandler mHandler; - private final ThreadPool mThreadPool; - private final AlbumLabelMaker mLabelMaker; - private final String mLoadingText; - - private final TiledTexture.Uploader mContentUploader; - private final TextureUploader mLabelUploader; - - private int mActiveRequestCount = 0; - private boolean mIsActive = false; - private BitmapTexture mLoadingLabel; - - private int mSlotWidth; - - public static class AlbumSetEntry { - public MediaSet album; - public MediaItem coverItem; - public Texture content; - public BitmapTexture labelTexture; - public TiledTexture bitmapTexture; - public Path setPath; - public String title; - public int totalCount; - public int sourceType; - public int cacheFlag; - public int cacheStatus; - public int rotation; - public boolean isWaitLoadingDisplayed; - public long setDataVersion; - public long coverDataVersion; - private BitmapLoader labelLoader; - private BitmapLoader coverLoader; - } - - public AlbumSetSlidingWindow(AbstractGalleryActivity activity, - AlbumSetDataLoader source, AlbumSetSlotRenderer.LabelSpec labelSpec, int cacheSize) { - source.setModelListener(this); - mSource = source; - mData = new AlbumSetEntry[cacheSize]; - mSize = source.size(); - mThreadPool = activity.getThreadPool(); - - mLabelMaker = new AlbumLabelMaker(activity.getAndroidContext(), labelSpec); - mLoadingText = activity.getAndroidContext().getString(R.string.loading); - mContentUploader = new TiledTexture.Uploader(activity.getGLRoot()); - mLabelUploader = new TextureUploader(activity.getGLRoot()); - - mHandler = new SynchronizedHandler(activity.getGLRoot()) { - @Override - public void handleMessage(Message message) { - Utils.assertTrue(message.what == MSG_UPDATE_ALBUM_ENTRY); - ((EntryUpdater) message.obj).updateEntry(); - } - }; - } - - public void setListener(Listener listener) { - mListener = listener; - } - - public AlbumSetEntry get(int slotIndex) { - if (!isActiveSlot(slotIndex)) { - Utils.fail("invalid slot: %s outsides (%s, %s)", - slotIndex, mActiveStart, mActiveEnd); - } - return mData[slotIndex % mData.length]; - } - - public int size() { - return mSize; - } - - public boolean isActiveSlot(int slotIndex) { - return slotIndex >= mActiveStart && slotIndex < mActiveEnd; - } - - private void setContentWindow(int contentStart, int contentEnd) { - if (contentStart == mContentStart && contentEnd == mContentEnd) return; - - if (contentStart >= mContentEnd || mContentStart >= contentEnd) { - for (int i = mContentStart, n = mContentEnd; i < n; ++i) { - freeSlotContent(i); - } - mSource.setActiveWindow(contentStart, contentEnd); - for (int i = contentStart; i < contentEnd; ++i) { - prepareSlotContent(i); - } - } else { - for (int i = mContentStart; i < contentStart; ++i) { - freeSlotContent(i); - } - for (int i = contentEnd, n = mContentEnd; i < n; ++i) { - freeSlotContent(i); - } - mSource.setActiveWindow(contentStart, contentEnd); - for (int i = contentStart, n = mContentStart; i < n; ++i) { - prepareSlotContent(i); - } - for (int i = mContentEnd; i < contentEnd; ++i) { - prepareSlotContent(i); - } - } - - mContentStart = contentStart; - mContentEnd = contentEnd; - } - - public void setActiveWindow(int start, int end) { - if (!(start <= end && end - start <= mData.length && end <= mSize)) { - Utils.fail("start = %s, end = %s, length = %s, size = %s", - start, end, mData.length, mSize); - } - - AlbumSetEntry data[] = mData; - mActiveStart = start; - mActiveEnd = end; - int contentStart = Utils.clamp((start + end) / 2 - data.length / 2, - 0, Math.max(0, mSize - data.length)); - int contentEnd = Math.min(contentStart + data.length, mSize); - setContentWindow(contentStart, contentEnd); - - if (mIsActive) { - updateTextureUploadQueue(); - updateAllImageRequests(); - } - } - - // We would like to request non active slots in the following order: - // Order: 8 6 4 2 1 3 5 7 - // |---------|---------------|---------| - // |<- active ->| - // |<-------- cached range ----------->| - private void requestNonactiveImages() { - int range = Math.max( - mContentEnd - mActiveEnd, mActiveStart - mContentStart); - for (int i = 0 ;i < range; ++i) { - requestImagesInSlot(mActiveEnd + i); - requestImagesInSlot(mActiveStart - 1 - i); - } - } - - private void cancelNonactiveImages() { - int range = Math.max( - mContentEnd - mActiveEnd, mActiveStart - mContentStart); - for (int i = 0 ;i < range; ++i) { - cancelImagesInSlot(mActiveEnd + i); - cancelImagesInSlot(mActiveStart - 1 - i); - } - } - - private void requestImagesInSlot(int slotIndex) { - if (slotIndex < mContentStart || slotIndex >= mContentEnd) return; - AlbumSetEntry entry = mData[slotIndex % mData.length]; - if (entry.coverLoader != null) entry.coverLoader.startLoad(); - if (entry.labelLoader != null) entry.labelLoader.startLoad(); - } - - private void cancelImagesInSlot(int slotIndex) { - if (slotIndex < mContentStart || slotIndex >= mContentEnd) return; - AlbumSetEntry entry = mData[slotIndex % mData.length]; - if (entry.coverLoader != null) entry.coverLoader.cancelLoad(); - if (entry.labelLoader != null) entry.labelLoader.cancelLoad(); - } - - private static long getDataVersion(MediaObject object) { - return object == null - ? MediaSet.INVALID_DATA_VERSION - : object.getDataVersion(); - } - - private void freeSlotContent(int slotIndex) { - AlbumSetEntry entry = mData[slotIndex % mData.length]; - if (entry.coverLoader != null) entry.coverLoader.recycle(); - if (entry.labelLoader != null) entry.labelLoader.recycle(); - if (entry.labelTexture != null) entry.labelTexture.recycle(); - if (entry.bitmapTexture != null) entry.bitmapTexture.recycle(); - mData[slotIndex % mData.length] = null; - } - - private boolean isLabelChanged( - AlbumSetEntry entry, String title, int totalCount, int sourceType) { - return !Utils.equals(entry.title, title) - || entry.totalCount != totalCount - || entry.sourceType != sourceType; - } - - private void updateAlbumSetEntry(AlbumSetEntry entry, int slotIndex) { - MediaSet album = mSource.getMediaSet(slotIndex); - MediaItem cover = mSource.getCoverItem(slotIndex); - int totalCount = mSource.getTotalCount(slotIndex); - - entry.album = album; - entry.setDataVersion = getDataVersion(album); - entry.cacheFlag = identifyCacheFlag(album); - entry.cacheStatus = identifyCacheStatus(album); - entry.setPath = (album == null) ? null : album.getPath(); - - String title = (album == null) ? "" : Utils.ensureNotNull(album.getName()); - int sourceType = DataSourceType.identifySourceType(album); - if (isLabelChanged(entry, title, totalCount, sourceType)) { - entry.title = title; - entry.totalCount = totalCount; - entry.sourceType = sourceType; - if (entry.labelLoader != null) { - entry.labelLoader.recycle(); - entry.labelLoader = null; - entry.labelTexture = null; - } - if (album != null) { - entry.labelLoader = new AlbumLabelLoader( - slotIndex, title, totalCount, sourceType); - } - } - - entry.coverItem = cover; - if (getDataVersion(cover) != entry.coverDataVersion) { - entry.coverDataVersion = getDataVersion(cover); - entry.rotation = (cover == null) ? 0 : cover.getRotation(); - if (entry.coverLoader != null) { - entry.coverLoader.recycle(); - entry.coverLoader = null; - entry.bitmapTexture = null; - entry.content = null; - } - if (cover != null) { - entry.coverLoader = new AlbumCoverLoader(slotIndex, cover); - } - } - } - - private void prepareSlotContent(int slotIndex) { - AlbumSetEntry entry = new AlbumSetEntry(); - updateAlbumSetEntry(entry, slotIndex); - mData[slotIndex % mData.length] = entry; - } - - private static boolean startLoadBitmap(BitmapLoader loader) { - if (loader == null) return false; - loader.startLoad(); - return loader.isRequestInProgress(); - } - - private void uploadBackgroundTextureInSlot(int index) { - if (index < mContentStart || index >= mContentEnd) return; - AlbumSetEntry entry = mData[index % mData.length]; - if (entry.bitmapTexture != null) { - mContentUploader.addTexture(entry.bitmapTexture); - } - if (entry.labelTexture != null) { - mLabelUploader.addBgTexture(entry.labelTexture); - } - } - - private void updateTextureUploadQueue() { - if (!mIsActive) return; - mContentUploader.clear(); - mLabelUploader.clear(); - - // Upload foreground texture - for (int i = mActiveStart, n = mActiveEnd; i < n; ++i) { - AlbumSetEntry entry = mData[i % mData.length]; - if (entry.bitmapTexture != null) { - mContentUploader.addTexture(entry.bitmapTexture); - } - if (entry.labelTexture != null) { - mLabelUploader.addFgTexture(entry.labelTexture); - } - } - - // add background textures - int range = Math.max( - (mContentEnd - mActiveEnd), (mActiveStart - mContentStart)); - for (int i = 0; i < range; ++i) { - uploadBackgroundTextureInSlot(mActiveEnd + i); - uploadBackgroundTextureInSlot(mActiveStart - i - 1); - } - } - - private void updateAllImageRequests() { - mActiveRequestCount = 0; - for (int i = mActiveStart, n = mActiveEnd; i < n; ++i) { - AlbumSetEntry entry = mData[i % mData.length]; - if (startLoadBitmap(entry.coverLoader)) ++mActiveRequestCount; - if (startLoadBitmap(entry.labelLoader)) ++mActiveRequestCount; - } - if (mActiveRequestCount == 0) { - requestNonactiveImages(); - } else { - cancelNonactiveImages(); - } - } - - @Override - public void onSizeChanged(int size) { - if (mIsActive && mSize != size) { - mSize = size; - if (mListener != null) mListener.onSizeChanged(mSize); - if (mContentEnd > mSize) mContentEnd = mSize; - if (mActiveEnd > mSize) mActiveEnd = mSize; - } - } - - @Override - public void onContentChanged(int index) { - if (!mIsActive) { - // paused, ignore slot changed event - return; - } - - // If the updated content is not cached, ignore it - if (index < mContentStart || index >= mContentEnd) { - Log.w(TAG, String.format( - "invalid update: %s is outside (%s, %s)", - index, mContentStart, mContentEnd) ); - return; - } - - AlbumSetEntry entry = mData[index % mData.length]; - updateAlbumSetEntry(entry, index); - updateAllImageRequests(); - updateTextureUploadQueue(); - if (mListener != null && isActiveSlot(index)) { - mListener.onContentChanged(); - } - } - - public BitmapTexture getLoadingTexture() { - if (mLoadingLabel == null) { - Bitmap bitmap = mLabelMaker.requestLabel( - mLoadingText, "", DataSourceType.TYPE_NOT_CATEGORIZED) - .run(ThreadPool.JOB_CONTEXT_STUB); - mLoadingLabel = new BitmapTexture(bitmap); - mLoadingLabel.setOpaque(false); - } - return mLoadingLabel; - } - - public void pause() { - mIsActive = false; - mLabelUploader.clear(); - mContentUploader.clear(); - TiledTexture.freeResources(); - for (int i = mContentStart, n = mContentEnd; i < n; ++i) { - freeSlotContent(i); - } - } - - public void resume() { - mIsActive = true; - TiledTexture.prepareResources(); - for (int i = mContentStart, n = mContentEnd; i < n; ++i) { - prepareSlotContent(i); - } - updateAllImageRequests(); - } - - private static interface EntryUpdater { - public void updateEntry(); - } - - private class AlbumCoverLoader extends BitmapLoader implements EntryUpdater { - private MediaItem mMediaItem; - private final int mSlotIndex; - - public AlbumCoverLoader(int slotIndex, MediaItem item) { - mSlotIndex = slotIndex; - mMediaItem = item; - } - - @Override - protected Future<Bitmap> submitBitmapTask(FutureListener<Bitmap> l) { - return mThreadPool.submit(mMediaItem.requestImage( - MediaItem.TYPE_MICROTHUMBNAIL), l); - } - - @Override - protected void onLoadComplete(Bitmap bitmap) { - mHandler.obtainMessage(MSG_UPDATE_ALBUM_ENTRY, this).sendToTarget(); - } - - @Override - public void updateEntry() { - Bitmap bitmap = getBitmap(); - if (bitmap == null) return; // error or recycled - - AlbumSetEntry entry = mData[mSlotIndex % mData.length]; - TiledTexture texture = new TiledTexture(bitmap); - entry.bitmapTexture = texture; - entry.content = texture; - - if (isActiveSlot(mSlotIndex)) { - mContentUploader.addTexture(texture); - --mActiveRequestCount; - if (mActiveRequestCount == 0) requestNonactiveImages(); - if (mListener != null) mListener.onContentChanged(); - } else { - mContentUploader.addTexture(texture); - } - } - } - - private static int identifyCacheFlag(MediaSet set) { - if (set == null || (set.getSupportedOperations() - & MediaSet.SUPPORT_CACHE) == 0) { - return MediaSet.CACHE_FLAG_NO; - } - - return set.getCacheFlag(); - } - - private static int identifyCacheStatus(MediaSet set) { - if (set == null || (set.getSupportedOperations() - & MediaSet.SUPPORT_CACHE) == 0) { - return MediaSet.CACHE_STATUS_NOT_CACHED; - } - - return set.getCacheStatus(); - } - - private class AlbumLabelLoader extends BitmapLoader implements EntryUpdater { - private final int mSlotIndex; - private final String mTitle; - private final int mTotalCount; - private final int mSourceType; - - public AlbumLabelLoader( - int slotIndex, String title, int totalCount, int sourceType) { - mSlotIndex = slotIndex; - mTitle = title; - mTotalCount = totalCount; - mSourceType = sourceType; - } - - @Override - protected Future<Bitmap> submitBitmapTask(FutureListener<Bitmap> l) { - return mThreadPool.submit(mLabelMaker.requestLabel( - mTitle, String.valueOf(mTotalCount), mSourceType), l); - } - - @Override - protected void onLoadComplete(Bitmap bitmap) { - mHandler.obtainMessage(MSG_UPDATE_ALBUM_ENTRY, this).sendToTarget(); - } - - @Override - public void updateEntry() { - Bitmap bitmap = getBitmap(); - if (bitmap == null) return; // Error or recycled - - AlbumSetEntry entry = mData[mSlotIndex % mData.length]; - BitmapTexture texture = new BitmapTexture(bitmap); - texture.setOpaque(false); - entry.labelTexture = texture; - - if (isActiveSlot(mSlotIndex)) { - mLabelUploader.addFgTexture(texture); - --mActiveRequestCount; - if (mActiveRequestCount == 0) requestNonactiveImages(); - if (mListener != null) mListener.onContentChanged(); - } else { - mLabelUploader.addBgTexture(texture); - } - } - } - - public void onSlotSizeChanged(int width, int height) { - if (mSlotWidth == width) return; - - mSlotWidth = width; - mLoadingLabel = null; - mLabelMaker.setLabelWidth(mSlotWidth); - - if (!mIsActive) return; - - for (int i = mContentStart, n = mContentEnd; i < n; ++i) { - AlbumSetEntry entry = mData[i % mData.length]; - if (entry.labelLoader != null) { - entry.labelLoader.recycle(); - entry.labelLoader = null; - entry.labelTexture = null; - } - if (entry.album != null) { - entry.labelLoader = new AlbumLabelLoader(i, - entry.title, entry.totalCount, entry.sourceType); - } - } - updateAllImageRequests(); - updateTextureUploadQueue(); - } -} |