diff options
Diffstat (limited to 'src/com/android/gallery3d/app/SinglePhotoDataAdapter.java')
| -rw-r--r-- | src/com/android/gallery3d/app/SinglePhotoDataAdapter.java | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/src/com/android/gallery3d/app/SinglePhotoDataAdapter.java b/src/com/android/gallery3d/app/SinglePhotoDataAdapter.java deleted file mode 100644 index 00f2fe78f..000000000 --- a/src/com/android/gallery3d/app/SinglePhotoDataAdapter.java +++ /dev/null @@ -1,263 +0,0 @@ -/* - * 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.app; - -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.graphics.BitmapRegionDecoder; -import android.graphics.Rect; -import android.os.Handler; -import android.os.Message; - -import com.android.gallery3d.common.BitmapUtils; -import com.android.gallery3d.common.Utils; -import com.android.gallery3d.data.MediaItem; -import com.android.gallery3d.data.Path; -import com.android.gallery3d.ui.BitmapScreenNail; -import com.android.gallery3d.ui.PhotoView; -import com.android.gallery3d.ui.ScreenNail; -import com.android.gallery3d.ui.SynchronizedHandler; -import com.android.gallery3d.ui.TileImageViewAdapter; -import com.android.gallery3d.util.Future; -import com.android.gallery3d.util.FutureListener; -import com.android.gallery3d.util.ThreadPool; - -public class SinglePhotoDataAdapter extends TileImageViewAdapter - implements PhotoPage.Model { - - private static final String TAG = "SinglePhotoDataAdapter"; - private static final int SIZE_BACKUP = 1024; - private static final int MSG_UPDATE_IMAGE = 1; - - private MediaItem mItem; - private boolean mHasFullImage; - private Future<?> mTask; - private Handler mHandler; - - private PhotoView mPhotoView; - private ThreadPool mThreadPool; - private int mLoadingState = LOADING_INIT; - private BitmapScreenNail mBitmapScreenNail; - - public SinglePhotoDataAdapter( - AbstractGalleryActivity activity, PhotoView view, MediaItem item) { - mItem = Utils.checkNotNull(item); - mHasFullImage = (item.getSupportedOperations() & - MediaItem.SUPPORT_FULL_IMAGE) != 0; - mPhotoView = Utils.checkNotNull(view); - mHandler = new SynchronizedHandler(activity.getGLRoot()) { - @Override - @SuppressWarnings("unchecked") - public void handleMessage(Message message) { - Utils.assertTrue(message.what == MSG_UPDATE_IMAGE); - if (mHasFullImage) { - onDecodeLargeComplete((ImageBundle) message.obj); - } else { - onDecodeThumbComplete((Future<Bitmap>) message.obj); - } - } - }; - mThreadPool = activity.getThreadPool(); - } - - private static class ImageBundle { - public final BitmapRegionDecoder decoder; - public final Bitmap backupImage; - - public ImageBundle(BitmapRegionDecoder decoder, Bitmap backupImage) { - this.decoder = decoder; - this.backupImage = backupImage; - } - } - - private FutureListener<BitmapRegionDecoder> mLargeListener = - new FutureListener<BitmapRegionDecoder>() { - @Override - public void onFutureDone(Future<BitmapRegionDecoder> future) { - BitmapRegionDecoder decoder = future.get(); - if (decoder == null) return; - int width = decoder.getWidth(); - int height = decoder.getHeight(); - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = BitmapUtils.computeSampleSize( - (float) SIZE_BACKUP / Math.max(width, height)); - Bitmap bitmap = decoder.decodeRegion(new Rect(0, 0, width, height), options); - mHandler.sendMessage(mHandler.obtainMessage( - MSG_UPDATE_IMAGE, new ImageBundle(decoder, bitmap))); - } - }; - - private FutureListener<Bitmap> mThumbListener = - new FutureListener<Bitmap>() { - @Override - public void onFutureDone(Future<Bitmap> future) { - mHandler.sendMessage( - mHandler.obtainMessage(MSG_UPDATE_IMAGE, future)); - } - }; - - @Override - public boolean isEmpty() { - return false; - } - - private void setScreenNail(Bitmap bitmap, int width, int height) { - mBitmapScreenNail = new BitmapScreenNail(bitmap); - setScreenNail(mBitmapScreenNail, width, height); - } - - private void onDecodeLargeComplete(ImageBundle bundle) { - try { - setScreenNail(bundle.backupImage, - bundle.decoder.getWidth(), bundle.decoder.getHeight()); - setRegionDecoder(bundle.decoder); - mPhotoView.notifyImageChange(0); - } catch (Throwable t) { - Log.w(TAG, "fail to decode large", t); - } - } - - private void onDecodeThumbComplete(Future<Bitmap> future) { - try { - Bitmap backup = future.get(); - if (backup == null) { - mLoadingState = LOADING_FAIL; - return; - } else { - mLoadingState = LOADING_COMPLETE; - } - setScreenNail(backup, backup.getWidth(), backup.getHeight()); - mPhotoView.notifyImageChange(0); - } catch (Throwable t) { - Log.w(TAG, "fail to decode thumb", t); - } - } - - @Override - public void resume() { - if (mTask == null) { - if (mHasFullImage) { - mTask = mThreadPool.submit( - mItem.requestLargeImage(), mLargeListener); - } else { - mTask = mThreadPool.submit( - mItem.requestImage(MediaItem.TYPE_THUMBNAIL), - mThumbListener); - } - } - } - - @Override - public void pause() { - Future<?> task = mTask; - task.cancel(); - task.waitDone(); - if (task.get() == null) { - mTask = null; - } - if (mBitmapScreenNail != null) { - mBitmapScreenNail.recycle(); - mBitmapScreenNail = null; - } - } - - @Override - public void moveTo(int index) { - throw new UnsupportedOperationException(); - } - - @Override - public void getImageSize(int offset, PhotoView.Size size) { - if (offset == 0) { - size.width = mItem.getWidth(); - size.height = mItem.getHeight(); - } else { - size.width = 0; - size.height = 0; - } - } - - @Override - public int getImageRotation(int offset) { - return (offset == 0) ? mItem.getFullImageRotation() : 0; - } - - @Override - public ScreenNail getScreenNail(int offset) { - return (offset == 0) ? getScreenNail() : null; - } - - @Override - public void setNeedFullImage(boolean enabled) { - // currently not necessary. - } - - @Override - public boolean isCamera(int offset) { - return false; - } - - @Override - public boolean isPanorama(int offset) { - return false; - } - - @Override - public boolean isStaticCamera(int offset) { - return false; - } - - @Override - public boolean isVideo(int offset) { - return mItem.getMediaType() == MediaItem.MEDIA_TYPE_VIDEO; - } - - @Override - public boolean isDeletable(int offset) { - return (mItem.getSupportedOperations() & MediaItem.SUPPORT_DELETE) != 0; - } - - @Override - public MediaItem getMediaItem(int offset) { - return offset == 0 ? mItem : null; - } - - @Override - public int getCurrentIndex() { - return 0; - } - - @Override - public void setCurrentPhoto(Path path, int indexHint) { - // ignore - } - - @Override - public void setFocusHintDirection(int direction) { - // ignore - } - - @Override - public void setFocusHintPath(Path path) { - // ignore - } - - @Override - public int getLoadingState(int offset) { - return mLoadingState; - } -} |