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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkImage_DEFINED | 8 #ifndef SkImage_DEFINED |
9 #define SkImage_DEFINED | 9 #define SkImage_DEFINED |
10 | 10 |
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115 | 115 |
116 void draw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const; | 116 void draw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const; |
117 | 117 |
118 /** | 118 /** |
119 * Draw the image, cropped to the src rect, to the dst rect of a canvas. | 119 * Draw the image, cropped to the src rect, to the dst rect of a canvas. |
120 * If src is larger than the bounds of the image, the rest of the image is | 120 * If src is larger than the bounds of the image, the rest of the image is |
121 * filled with transparent black pixels. | 121 * filled with transparent black pixels. |
122 * | 122 * |
123 * See SkCanvas::drawBitmapRectToRect for similar behavior. | 123 * See SkCanvas::drawBitmapRectToRect for similar behavior. |
124 */ | 124 */ |
125 void draw(SkCanvas*, const SkRect* src, const SkRect& dst, const SkPaint*) c
onst; | 125 void drawRect(SkCanvas*, const SkRect* src, const SkRect& dst, const SkPaint
*) const; |
126 | 126 |
127 /** | 127 /** |
128 * Return a copy of the image's pixels, limiting them to the subset | 128 * Return a copy of the image's pixels, limiting them to the subset |
129 * rectangle's intersection wit the image bounds. If subset is NULL, then | 129 * rectangle's intersection wit the image bounds. If subset is NULL, then |
130 * the entire image will be considered. | 130 * the entire image will be considered. |
131 * | 131 * |
132 * If the bitmap's pixels have already been allocated, then readPixels() | 132 * If the bitmap's pixels have already been allocated, then readPixels() |
133 * will succeed only if it can support converting the image's pixels into | 133 * will succeed only if it can support converting the image's pixels into |
134 * the bitmap's ColorType/AlphaType. Any pixels in the bitmap that do not | 134 * the bitmap's ColorType/AlphaType. Any pixels in the bitmap that do not |
135 * intersect with the image's bounds and the subset (if not null) will be | 135 * intersect with the image's bounds and the subset (if not null) will be |
136 * left untouched. | 136 * left untouched. |
137 * | 137 * |
138 * If the bitmap is initially empty/unallocated, then it will be allocated | 138 * If the bitmap is initially empty/unallocated, then it will be allocated |
139 * using the default allocator, and the ColorType/AlphaType will be chosen | 139 * using the default allocator, and the ColorType/AlphaType will be chosen |
140 * to most closely fit the image's configuration. | 140 * to most closely fit the image's configuration. |
141 * | 141 * |
142 * On failure, false will be returned, and bitmap will unmodified. | 142 * On failure, false will be returned, and bitmap will unmodified. |
143 */ | 143 */ |
144 // On ice for now: | 144 // On ice for now: |
145 // - should it respect the particular colortype/alphatype of the src | 145 // - should it respect the particular colortype/alphatype of the src |
146 // - should it have separate entrypoints for preallocated and not bitmaps? | 146 // - should it have separate entrypoints for preallocated and not bitmaps? |
147 // - isn't it enough to allow the caller to draw() the image into a canvas? | 147 // - isn't it enough to allow the caller to draw() the image into a canvas? |
148 bool readPixels(SkBitmap* bitmap, const SkIRect* subset = NULL) const; | 148 bool readPixels(SkBitmap* bitmap, const SkIRect* subset = NULL) const; |
149 }; | 149 }; |
150 | 150 |
151 #endif | 151 #endif |
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