| /* |
| * Copyright (C) 2011 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.widget; |
| |
| import com.android.gallery3d.R; |
| import com.android.gallery3d.data.MediaItem; |
| import com.android.gallery3d.util.ThreadPool; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.Bitmap.Config; |
| import android.util.Log; |
| |
| public class WidgetUtils { |
| |
| private static final String TAG = "WidgetUtils"; |
| |
| private static int sStackPhotoWidth = 220; |
| private static int sStackPhotoHeight = 170; |
| |
| private WidgetUtils() { |
| } |
| |
| public static void initialize(Context context) { |
| Resources r = context.getResources(); |
| sStackPhotoWidth = r.getDimensionPixelSize(R.dimen.stack_photo_width); |
| sStackPhotoHeight = r.getDimensionPixelSize(R.dimen.stack_photo_height); |
| } |
| |
| public static Bitmap createWidgetBitmap(MediaItem image) { |
| Bitmap bitmap = image.requestImage(MediaItem.TYPE_THUMBNAIL) |
| .run(ThreadPool.JOB_CONTEXT_STUB); |
| if (bitmap == null) { |
| Log.w(TAG, "fail to get image of " + image.toString()); |
| return null; |
| } |
| return createWidgetBitmap(bitmap, image.getRotation()); |
| } |
| |
| public static Bitmap createWidgetBitmap(Bitmap bitmap, int rotation) { |
| int w = bitmap.getWidth(); |
| int h = bitmap.getHeight(); |
| |
| float scale; |
| if (((rotation / 90) & 1) == 0) { |
| scale = Math.max((float) sStackPhotoWidth / w, |
| (float) sStackPhotoHeight / h); |
| } else { |
| scale = Math.max((float) sStackPhotoWidth / h, |
| (float) sStackPhotoHeight / w); |
| } |
| |
| Bitmap target = Bitmap.createBitmap( |
| sStackPhotoWidth, sStackPhotoHeight, Config.ARGB_8888); |
| Canvas canvas = new Canvas(target); |
| canvas.translate(sStackPhotoWidth / 2, sStackPhotoHeight / 2); |
| canvas.rotate(rotation); |
| canvas.scale(scale, scale); |
| Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG); |
| canvas.drawBitmap(bitmap, -w / 2, -h / 2, paint); |
| return target; |
| } |
| } |