diff options
Diffstat (limited to 'wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java')
-rw-r--r-- | wallpaper_picker_src/com/android/launcher3/DrawableTileSource.java | 102 |
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; + } +} |