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Diffstat (limited to 'wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java')
-rw-r--r--wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java102
1 files changed, 102 insertions, 0 deletions
diff --git a/wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java b/wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java
new file mode 100644
index 000000000..c1f2eff0f
--- /dev/null
+++ b/wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2013 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.launcher3;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+import com.android.gallery3d.glrenderer.BasicTexture;
+import com.android.gallery3d.glrenderer.BitmapTexture;
+import com.android.photos.views.TiledImageRenderer;
+
+public class DrawableTileSource implements TiledImageRenderer.TileSource {
+ private static final int GL_SIZE_LIMIT = 2048;
+ // This must be no larger than half the size of the GL_SIZE_LIMIT
+ // due to decodePreview being allowed to be up to 2x the size of the target
+ public static final int MAX_PREVIEW_SIZE = GL_SIZE_LIMIT / 2;
+
+ private int mTileSize;
+ private int mPreviewSize;
+ private Drawable mDrawable;
+ private BitmapTexture mPreview;
+
+ public DrawableTileSource(Context context, Drawable d, int previewSize) {
+ mTileSize = TiledImageRenderer.suggestedTileSize(context);
+ mDrawable = d;
+ mPreviewSize = Math.min(previewSize, MAX_PREVIEW_SIZE);
+ }
+
+ @Override
+ public int getTileSize() {
+ return mTileSize;
+ }
+
+ @Override
+ public int getImageWidth() {
+ return mDrawable.getIntrinsicWidth();
+ }
+
+ @Override
+ public int getImageHeight() {
+ return mDrawable.getIntrinsicHeight();
+ }
+
+ @Override
+ public int getRotation() {
+ return 0;
+ }
+
+ @Override
+ public BasicTexture getPreview() {
+ if (mPreviewSize == 0) {
+ return null;
+ }
+ if (mPreview == null){
+ float width = getImageWidth();
+ float height = getImageHeight();
+ while (width > MAX_PREVIEW_SIZE || height > MAX_PREVIEW_SIZE) {
+ width /= 2;
+ height /= 2;
+ }
+ Bitmap b = Bitmap.createBitmap((int) width, (int) height, Bitmap.Config.ARGB_8888);
+ Canvas c = new Canvas(b);
+ mDrawable.setBounds(new Rect(0, 0, (int) width, (int) height));
+ mDrawable.draw(c);
+ c.setBitmap(null);
+ mPreview = new BitmapTexture(b);
+ }
+ return mPreview;
+ }
+
+ @Override
+ public Bitmap getTile(int level, int x, int y, Bitmap bitmap) {
+ int tileSize = getTileSize();
+ if (bitmap == null) {
+ bitmap = Bitmap.createBitmap(tileSize, tileSize, Bitmap.Config.ARGB_8888);
+ }
+ Canvas c = new Canvas(bitmap);
+ Rect bounds = new Rect(0, 0, getImageWidth(), getImageHeight());
+ bounds.offset(-x, -y);
+ mDrawable.setBounds(bounds);
+ mDrawable.draw(c);
+ c.setBitmap(null);
+ return bitmap;
+ }
+}