1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
* Copyright (C) 2008 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 android.graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public final class Bitmap extends _Original_Bitmap {
private BufferedImage mImage;
public Bitmap(File input) throws IOException {
super(1, true, null, -1);
mImage = ImageIO.read(input);
}
Bitmap(BufferedImage image) {
super(1, true, null, -1);
mImage = image;
}
public BufferedImage getImage() {
return mImage;
}
// ----- overriden methods
public enum Config {
// these native values must match up with the enum in SkBitmap.h
ALPHA_8 (2),
RGB_565 (4),
ARGB_4444 (5),
ARGB_8888 (6);
Config(int ni) {
this.nativeInt = ni;
}
final int nativeInt;
/* package */ static Config nativeToConfig(int ni) {
return sConfigs[ni];
}
private static Config sConfigs[] = {
null, null, ALPHA_8, null, RGB_565, ARGB_4444, ARGB_8888
};
}
@Override
public int getWidth() {
return mImage.getWidth();
}
@Override
public int getHeight() {
return mImage.getHeight();
}
/**
* Returns an immutable bitmap from the source bitmap. The new bitmap may
* be the same object as source, or a copy may have been made.
*/
public static Bitmap createBitmap(Bitmap src) {
return createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), null, false);
}
/**
* Returns an immutable bitmap from the specified subset of the source
* bitmap. The new bitmap may be the same object as source, or a copy may
* have been made.
*
* @param source The bitmap we are subsetting
* @param x The x coordinate of the first pixel in source
* @param y The y coordinate of the first pixel in source
* @param width The number of pixels in each row
* @param height The number of rows
*/
public static Bitmap createBitmap(Bitmap source, int x, int y,
int width, int height) {
return new Bitmap(source.mImage.getSubimage(x, y, width, height));
}
/**
* Returns an immutable bitmap from subset of the source bitmap,
* transformed by the optional matrix.
*
* @param source The bitmap we are subsetting
* @param x The x coordinate of the first pixel in source
* @param y The y coordinate of the first pixel in source
* @param width The number of pixels in each row
* @param height The number of rows
* @param m Option matrix to be applied to the pixels
* @param filter true if the source should be filtered.
* Only applies if the matrix contains more than just
* translation.
* @return A bitmap that represents the specified subset of source
* @throws IllegalArgumentException if the x, y, width, height values are
* outside of the dimensions of the source bitmap.
*/
public static Bitmap createBitmap(Bitmap source, int x, int y, int width,
int height, Matrix m, boolean filter) {
checkXYSign(x, y);
checkWidthHeight(width, height);
if (x + width > source.getWidth()) {
throw new IllegalArgumentException(
"x + width must be <= bitmap.width()");
}
if (y + height > source.getHeight()) {
throw new IllegalArgumentException(
"y + height must be <= bitmap.height()");
}
// check if we can just return our argument unchanged
if (!source.isMutable() && x == 0 && y == 0
&& width == source.getWidth() && height == source.getHeight()
&& (m == null || m.isIdentity())) {
return source;
}
if (m == null || m.isIdentity()) {
return new Bitmap(source.mImage.getSubimage(x, y, width, height));
}
int neww = width;
int newh = height;
Paint paint;
Rect srcR = new Rect(x, y, x + width, y + height);
RectF dstR = new RectF(0, 0, width, height);
/* the dst should have alpha if the src does, or if our matrix
doesn't preserve rectness
*/
boolean hasAlpha = source.hasAlpha() || !m.rectStaysRect();
RectF deviceR = new RectF();
m.mapRect(deviceR, dstR);
neww = Math.round(deviceR.width());
newh = Math.round(deviceR.height());
Canvas canvas = new Canvas(neww, newh);
canvas.translate(-deviceR.left, -deviceR.top);
canvas.concat(m);
paint = new Paint();
paint.setFilterBitmap(filter);
if (!m.rectStaysRect()) {
paint.setAntiAlias(true);
}
canvas.drawBitmap(source, srcR, dstR, paint);
return new Bitmap(canvas.getImage());
}
/**
* Returns a mutable bitmap with the specified width and height.
*
* @param width The width of the bitmap
* @param height The height of the bitmap
* @param config The bitmap config to create.
* @throws IllegalArgumentException if the width or height are <= 0
*/
public static Bitmap createBitmap(int width, int height, Config config) {
return new Bitmap(new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB));
}
/**
* Returns a immutable bitmap with the specified width and height, with each
* pixel value set to the corresponding value in the colors array.
*
* @param colors Array of {@link Color} used to initialize the pixels.
* @param offset Number of values to skip before the first color in the
* array of colors.
* @param stride Number of colors in the array between rows (must be >=
* width or <= -width).
* @param width The width of the bitmap
* @param height The height of the bitmap
* @param config The bitmap config to create. If the config does not
* support per-pixel alpha (e.g. RGB_565), then the alpha
* bytes in the colors[] will be ignored (assumed to be FF)
* @throws IllegalArgumentException if the width or height are <= 0, or if
* the color array's length is less than the number of pixels.
*/
public static Bitmap createBitmap(int colors[], int offset, int stride,
int width, int height, Config config) {
checkWidthHeight(width, height);
if (Math.abs(stride) < width) {
throw new IllegalArgumentException("abs(stride) must be >= width");
}
int lastScanline = offset + (height - 1) * stride;
int length = colors.length;
if (offset < 0 || (offset + width > length)
|| lastScanline < 0
|| (lastScanline + width > length)) {
throw new ArrayIndexOutOfBoundsException();
}
// TODO: create an immutable bitmap...
throw new UnsupportedOperationException();
}
/**
* Returns a immutable bitmap with the specified width and height, with each
* pixel value set to the corresponding value in the colors array.
*
* @param colors Array of {@link Color} used to initialize the pixels.
* This array must be at least as large as width * height.
* @param width The width of the bitmap
* @param height The height of the bitmap
* @param config The bitmap config to create. If the config does not
* support per-pixel alpha (e.g. RGB_565), then the alpha
* bytes in the colors[] will be ignored (assumed to be FF)
* @throws IllegalArgumentException if the width or height are <= 0, or if
* the color array's length is less than the number of pixels.
*/
public static Bitmap createBitmap(int colors[], int width, int height,
Config config) {
return createBitmap(colors, 0, width, width, height, config);
}
}
|
