FastBitmapDrawable.java revision a28fd3fa7c82947d847c05ed11905f556b8dcfa2 
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
17package com.android.launcher2;
18
19import android.graphics.drawable.Drawable;
20import android.graphics.PixelFormat;
21import android.graphics.Bitmap;
22import android.graphics.Canvas;
23import android.graphics.ColorFilter;
24
25class 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