1 files changed, 201 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/ui/AlbumSlotRenderer.java b/src/com/android/gallery3d/ui/AlbumSlotRenderer.java
new file mode 100644
index 000000000..dc6c89b0e
--- /dev/null
+++ b/src/com/android/gallery3d/ui/AlbumSlotRenderer.java
@@ -0,0 +1,201 @@
+/*
+ * 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 com.android.gallery3d.app.AbstractGalleryActivity;
+import com.android.gallery3d.app.AlbumDataLoader;
+import com.android.gallery3d.data.MediaObject;
+import com.android.gallery3d.data.Path;
+import com.android.gallery3d.glrenderer.ColorTexture;
+import com.android.gallery3d.glrenderer.FadeInTexture;
+import com.android.gallery3d.glrenderer.GLCanvas;
+import com.android.gallery3d.glrenderer.Texture;
+import com.android.gallery3d.glrenderer.TiledTexture;
+
+public class AlbumSlotRenderer extends AbstractSlotRenderer {
+    @SuppressWarnings("unused")
+    private static final String TAG = "AlbumView";
+
+    public interface SlotFilter {
+        public boolean acceptSlot(int index);
+    }
+
+    private final int mPlaceholderColor;
+    private static final int CACHE_SIZE = 96;
+
+    private AlbumSlidingWindow mDataWindow;
+    private final AbstractGalleryActivity mActivity;
+    private final ColorTexture mWaitLoadingTexture;
+    private final SlotView mSlotView;
+    private final SelectionManager mSelectionManager;
+
+    private int mPressedIndex = -1;
+    private boolean mAnimatePressedUp;
+    private Path mHighlightItemPath = null;
+    private boolean mInSelectionMode;
+
+    private SlotFilter mSlotFilter;
+
+    public AlbumSlotRenderer(AbstractGalleryActivity activity, SlotView slotView,
+            SelectionManager selectionManager, int placeholderColor) {
+        super(activity);
+        mActivity = activity;
+        mSlotView = slotView;
+        mSelectionManager = selectionManager;
+        mPlaceholderColor = placeholderColor;
+
+        mWaitLoadingTexture = new ColorTexture(mPlaceholderColor);
+        mWaitLoadingTexture.setSize(1, 1);
+    }
+
+    public void setPressedIndex(int index) {
+        if (mPressedIndex == index) return;
+        mPressedIndex = index;
+        mSlotView.invalidate();
+    }
+
+    public void setPressedUp() {
+        if (mPressedIndex == -1) return;
+        mAnimatePressedUp = true;
+        mSlotView.invalidate();
+    }
+
+    public void setHighlightItemPath(Path path) {
+        if (mHighlightItemPath == path) return;
+        mHighlightItemPath = path;
+        mSlotView.invalidate();
+    }
+
+    public void setModel(AlbumDataLoader model) {
+        if (mDataWindow != null) {
+            mDataWindow.setListener(null);
+            mSlotView.setSlotCount(0);
+            mDataWindow = null;
+        }
+        if (model != null) {
+            mDataWindow = new AlbumSlidingWindow(mActivity, model, CACHE_SIZE);
+            mDataWindow.setListener(new MyDataModelListener());
+            mSlotView.setSlotCount(model.size());
+        }
+    }
+
+    private static Texture checkTexture(Texture texture) {
+        return (texture instanceof TiledTexture)
+                && !((TiledTexture) texture).isReady()
+                ? null
+                : texture;
+    }
+
+    @Override
+    public int renderSlot(GLCanvas canvas, int index, int pass, int width, int height) {
+        if (mSlotFilter != null && !mSlotFilter.acceptSlot(index)) return 0;
+
+        AlbumSlidingWindow.AlbumEntry entry = mDataWindow.get(index);
+
+        int renderRequestFlags = 0;
+
+        Texture content = checkTexture(entry.content);
+        if (content == null) {
+            content = mWaitLoadingTexture;
+            entry.isWaitDisplayed = true;
+        } else if (entry.isWaitDisplayed) {
+            entry.isWaitDisplayed = false;
+            content = new FadeInTexture(mPlaceholderColor, entry.bitmapTexture);
+            entry.content = content;
+        }
+        drawContent(canvas, content, width, height, entry.rotation);
+        if ((content instanceof FadeInTexture) &&
+                ((FadeInTexture) content).isAnimating()) {
+            renderRequestFlags |= SlotView.RENDER_MORE_FRAME;
+        }
+
+        if (entry.mediaType == MediaObject.MEDIA_TYPE_VIDEO) {
+            drawVideoOverlay(canvas, width, height);
+        }
+
+        if (entry.isPanorama) {
+            drawPanoramaIcon(canvas, width, height);
+        }
+
+        renderRequestFlags |= renderOverlay(canvas, index, entry, width, height);
+
+        return renderRequestFlags;
+    }
+
+    private int renderOverlay(GLCanvas canvas, int index,
+            AlbumSlidingWindow.AlbumEntry entry, int width, int height) {
+        int renderRequestFlags = 0;
+        if (mPressedIndex == index) {
+            if (mAnimatePressedUp) {
+                drawPressedUpFrame(canvas, width, height);
+                renderRequestFlags |= SlotView.RENDER_MORE_FRAME;
+                if (isPressedUpFrameFinished()) {
+                    mAnimatePressedUp = false;
+                    mPressedIndex = -1;
+                }
+            } else {
+                drawPressedFrame(canvas, width, height);
+            }
+        } else if ((entry.path != null) && (mHighlightItemPath == entry.path)) {
+            drawSelectedFrame(canvas, width, height);
+        } else if (mInSelectionMode && mSelectionManager.isItemSelected(entry.path)) {
+            drawSelectedFrame(canvas, width, height);
+        }
+        return renderRequestFlags;
+    }
+
+    private class MyDataModelListener implements AlbumSlidingWindow.Listener {
+        @Override
+        public void onContentChanged() {
+            mSlotView.invalidate();
+        }
+
+        @Override
+        public void onSizeChanged(int size) {
+            mSlotView.setSlotCount(size);
+        }
+    }
+
+    public void resume() {
+        mDataWindow.resume();
+    }
+
+    public void pause() {
+        mDataWindow.pause();
+    }
+
+    @Override
+    public void prepareDrawing() {
+        mInSelectionMode = mSelectionManager.inSelectionMode();
+    }
+
+    @Override
+    public void onVisibleRangeChanged(int visibleStart, int visibleEnd) {
+        if (mDataWindow != null) {
+            mDataWindow.setActiveWindow(visibleStart, visibleEnd);
+        }
+    }
+
+    @Override
+    public void onSlotSizeChanged(int width, int height) {
+        // Do nothing
+    }
+
+    public void setSlotFilter(SlotFilter slotFilter) {
+        mSlotFilter = slotFilter;
+    }
+}