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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.launcher2;
     18 
     19 import android.graphics.drawable.Drawable;
     20 import android.graphics.PixelFormat;
     21 import android.graphics.Bitmap;
     22 import android.graphics.Canvas;
     23 import android.graphics.ColorFilter;
     24 
     25 class FastBitmapDrawable extends Drawable {
     26     private Bitmap mBitmap;
     27     private int mWidth;
     28     private int mHeight;
     29 
     30     FastBitmapDrawable(Bitmap b) {
     31         mBitmap = b;
     32         if (b != null) {
     33             mWidth = mBitmap.getWidth();
     34             mHeight = mBitmap.getHeight();
     35         } else {
     36             mWidth = mHeight = 0;
     37         }
     38     }
     39 
     40     @Override
     41     public void draw(Canvas canvas) {
     42         canvas.drawBitmap(mBitmap, 0.0f, 0.0f, null);
     43     }
     44 
     45     @Override
     46     public int getOpacity() {
     47         return PixelFormat.TRANSLUCENT;
     48     }
     49 
     50     @Override
     51     public void setAlpha(int alpha) {
     52     }
     53 
     54     @Override
     55     public void setColorFilter(ColorFilter cf) {
     56     }
     57 
     58     @Override
     59     public int getIntrinsicWidth() {
     60         return mWidth;
     61     }
     62 
     63     @Override
     64     public int getIntrinsicHeight() {
     65         return mHeight;
     66     }
     67 
     68     @Override
     69     public int getMinimumWidth() {
     70         return mWidth;
     71     }
     72 
     73     @Override
     74     public int getMinimumHeight() {
     75         return mHeight;
     76     }
     77 
     78     public void setBitmap(Bitmap b) {
     79         mBitmap = b;
     80         if (b != null) {
     81             mWidth = mBitmap.getWidth();
     82             mHeight = mBitmap.getHeight();
     83         } else {
     84             mWidth = mHeight = 0;
     85         }
     86     }
     87 
     88     public Bitmap getBitmap() {
     89         return mBitmap;
     90     }
     91 }
     92