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.launcher3;
18
19import android.graphics.Bitmap;
20import android.graphics.Canvas;
21import android.graphics.ColorFilter;
22import android.graphics.Paint;
23import android.graphics.PixelFormat;
24import android.graphics.Rect;
25import android.graphics.drawable.Drawable;
26
27class FastBitmapDrawable extends Drawable {
28    private Bitmap mBitmap;
29    private int mAlpha;
30    private int mWidth;
31    private int mHeight;
32    private final Paint mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
33
34    FastBitmapDrawable(Bitmap b) {
35	mAlpha = 255;
36        mBitmap = b;
37        if (b != null) {
38            mWidth = mBitmap.getWidth();
39            mHeight = mBitmap.getHeight();
40        } else {
41            mWidth = mHeight = 0;
42        }
43    }
44
45    @Override
46    public void draw(Canvas canvas) {
47        final Rect r = getBounds();
48        // Draw the bitmap into the bounding rect
49        canvas.drawBitmap(mBitmap, null, r, mPaint);
50    }
51
52    @Override
53    public void setColorFilter(ColorFilter cf) {
54        mPaint.setColorFilter(cf);
55    }
56
57    @Override
58    public int getOpacity() {
59        return PixelFormat.TRANSLUCENT;
60    }
61
62    @Override
63    public void setAlpha(int alpha) {
64        mAlpha = alpha;
65        mPaint.setAlpha(alpha);
66    }
67
68    public void setFilterBitmap(boolean filterBitmap) {
69        mPaint.setFilterBitmap(filterBitmap);
70    }
71
72    public int getAlpha() {
73        return mAlpha;
74    }
75
76    @Override
77    public int getIntrinsicWidth() {
78        return mWidth;
79    }
80
81    @Override
82    public int getIntrinsicHeight() {
83        return mHeight;
84    }
85
86    @Override
87    public int getMinimumWidth() {
88        return mWidth;
89    }
90
91    @Override
92    public int getMinimumHeight() {
93        return mHeight;
94    }
95
96    public void setBitmap(Bitmap b) {
97        mBitmap = b;
98        if (b != null) {
99            mWidth = mBitmap.getWidth();
100            mHeight = mBitmap.getHeight();
101        } else {
102            mWidth = mHeight = 0;
103        }
104    }
105
106    public Bitmap getBitmap() {
107        return mBitmap;
108    }
109}
110