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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
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 SkCanvas_DEFINED | 8 #ifndef SkCanvas_DEFINED |
9 #define SkCanvas_DEFINED | 9 #define SkCanvas_DEFINED |
10 | 10 |
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28 class SkMetaData; | 28 class SkMetaData; |
29 class SkPicture; | 29 class SkPicture; |
30 class SkRRect; | 30 class SkRRect; |
31 struct SkRSXform; | 31 struct SkRSXform; |
32 class SkSurface; | 32 class SkSurface; |
33 class SkSurface_Base; | 33 class SkSurface_Base; |
34 class SkTextBlob; | 34 class SkTextBlob; |
35 class GrContext; | 35 class GrContext; |
36 class GrRenderTarget; | 36 class GrRenderTarget; |
37 | 37 |
38 //#define SK_SUPPORT_LEGACY_ONDRAWIMAGERECT | 38 //#define SK_SUPPORT_LEGACY_DRAWBITMAPRECTFLAGS_TYPE |
39 | 39 |
40 class SkCanvasState; | 40 class SkCanvasState; |
41 | 41 |
42 #ifdef SK_SUPPORT_LEGACY_ONDRAWIMAGERECT | 42 #ifdef SK_SUPPORT_LEGACY_ONDRAWIMAGERECT |
43 #define SK_VIRTUAL_CONSTRAINT_TYPE SkCanvas::DrawBitmapRectFlags | 43 #define SK_VIRTUAL_CONSTRAINT_TYPE SkCanvas::DrawBitmapRectFlags |
44 #define SRC_RECT_CONSTRAINT_PARAM(param) | 44 #define SRC_RECT_CONSTRAINT_PARAM(param) |
45 #define SRC_RECT_CONSTRAINT_ARG(arg) | 45 #define SRC_RECT_CONSTRAINT_ARG(arg) |
46 #define SRC_RECT_CONSTRAINT_LOCAL_DEFAULT(var) SkCanvas::SrcRectConstraint
var = SkCanvas::kStrict_SrcRectConstraint; | 46 #define SRC_RECT_CONSTRAINT_LOCAL_DEFAULT(var) SkCanvas::SrcRectConstraint
var = SkCanvas::kStrict_SrcRectConstraint; |
47 #else | 47 #else |
48 #define SK_VIRTUAL_CONSTRAINT_TYPE SkCanvas::SrcRectConstraint | 48 #define SK_VIRTUAL_CONSTRAINT_TYPE SkCanvas::SrcRectConstraint |
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827 * and drawn. | 827 * and drawn. |
828 * | 828 * |
829 * @param image The image to be drawn | 829 * @param image The image to be drawn |
830 * @param src Optional: specify the subset of the image to be drawn | 830 * @param src Optional: specify the subset of the image to be drawn |
831 * @param dst The destination rectangle where the scaled/translated | 831 * @param dst The destination rectangle where the scaled/translated |
832 * image will be drawn | 832 * image will be drawn |
833 * @param paint The paint used to draw the image, or NULL | 833 * @param paint The paint used to draw the image, or NULL |
834 * @param constraint Control the tradeoff between speed and exactness w.r.t
. the src-rect. | 834 * @param constraint Control the tradeoff between speed and exactness w.r.t
. the src-rect. |
835 */ | 835 */ |
836 void drawImageRect(const SkImage* image, const SkRect* src, const SkRect& ds
t, | 836 void drawImageRect(const SkImage* image, const SkRect* src, const SkRect& ds
t, |
837 const SkPaint* paint, SrcRectConstraint); | 837 const SkPaint* paint, SrcRectConstraint = kStrict_SrcRect
Constraint); |
838 | 838 |
839 void drawImageRect(const SkImage* image, const SkRect* src, const SkRect& ds
t, | 839 void drawImageRect(const SkImage* image, const SkRect* src, const SkRect& ds
t) { |
840 const SkPaint* paint = NULL) { | 840 this->drawImageRect(image, src, dst, NULL, kStrict_SrcRectConstraint); |
841 this->drawImageRect(image, src, dst, paint, kStrict_SrcRectConstraint); | |
842 } | 841 } |
843 | 842 |
844 void drawImageRect(const SkImage* image, const SkRect& dst, const SkPaint* p
aint = NULL) { | 843 void drawImageRect(const SkImage* image, const SkRect& dst, const SkPaint* p
aint = NULL) { |
845 // With no src-rect, the constraint value is ignored, so we just use the
default. | 844 // With no src-rect, the constraint value is ignored, so we just use the
default. |
846 this->drawImageRect(image, NULL, dst, paint, kStrict_SrcRectConstraint); | 845 this->drawImageRect(image, NULL, dst, paint, kStrict_SrcRectConstraint); |
847 } | 846 } |
848 | 847 |
| 848 void drawImageRect(const SkImage* image, const SkIRect& isrc, const SkRect&
dst, |
| 849 const SkPaint* paint, SrcRectConstraint = kStrict_SrcRect
Constraint); |
| 850 |
849 /** | 851 /** |
850 * Draw the image stretched differentially to fit into dst. | 852 * Draw the image stretched differentially to fit into dst. |
851 * center is a rect within the image, and logically divides the image | 853 * center is a rect within the image, and logically divides the image |
852 * into 9 sections (3x3). For example, if the middle pixel of a [5x5] | 854 * into 9 sections (3x3). For example, if the middle pixel of a [5x5] |
853 * image is the "center", then the center-rect should be [2, 2, 3, 3]. | 855 * image is the "center", then the center-rect should be [2, 2, 3, 3]. |
854 * | 856 * |
855 * If the dst is >= the image size, then... | 857 * If the dst is >= the image size, then... |
856 * - The 4 corners are not stretched at all. | 858 * - The 4 corners are not stretched at all. |
857 * - The sides are stretched in only one axis. | 859 * - The sides are stretched in only one axis. |
858 * - The center is stretched in both axes. | 860 * - The center is stretched in both axes. |
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886 * dst rect. If the src rect is non-null, only that subset of the bitmap is
transformed | 888 * dst rect. If the src rect is non-null, only that subset of the bitmap is
transformed |
887 * and drawn. | 889 * and drawn. |
888 * | 890 * |
889 * @param bitmap The bitmap to be drawn | 891 * @param bitmap The bitmap to be drawn |
890 * @param src Optional: specify the subset of the bitmap to be drawn | 892 * @param src Optional: specify the subset of the bitmap to be drawn |
891 * @param dst The destination rectangle where the scaled/translated | 893 * @param dst The destination rectangle where the scaled/translated |
892 * bitmap will be drawn | 894 * bitmap will be drawn |
893 * @param paint The paint used to draw the bitmap, or NULL | 895 * @param paint The paint used to draw the bitmap, or NULL |
894 * @param constraint Control the tradeoff between speed and exactness w.r.t
. the src-rect. | 896 * @param constraint Control the tradeoff between speed and exactness w.r.t
. the src-rect. |
895 */ | 897 */ |
| 898 #ifdef SK_SUPPORT_LEGACY_DRAWBITMAPRECTFLAGS_TYPE |
896 void drawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect&
dst, | 899 void drawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect&
dst, |
897 const SkPaint* paint, SrcRectConstraint); | 900 const SkPaint* paint, SrcRectConstraint); |
| 901 #else |
| 902 void drawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect&
dst, |
| 903 const SkPaint* paint, SrcRectConstraint = kStrict_SrcRec
tConstraint); |
| 904 #endif |
898 | 905 |
899 void drawBitmapRect(const SkBitmap& bitmap, const SkRect& dst, const SkPaint
* paint = NULL) { | 906 void drawBitmapRect(const SkBitmap& bitmap, const SkRect& dst, const SkPaint
* paint = NULL) { |
900 this->drawBitmapRect(bitmap, NULL, dst, paint, kStrict_SrcRectConstraint
); | 907 this->drawBitmapRect(bitmap, NULL, dst, paint, kStrict_SrcRectConstraint
); |
901 } | 908 } |
902 | 909 |
| 910 void drawBitmapRect(const SkBitmap& bitmap, const SkIRect& isrc, const SkRec
t& dst, |
| 911 const SkPaint* paint, SrcRectConstraint = kStrict_SrcRec
tConstraint); |
| 912 |
| 913 #ifdef SK_SUPPORT_LEGACY_DRAWBITMAPRECTFLAGS_TYPE |
903 // IMPORTANT that thse be value-equal with SrcRectConstraint (during transit
ion period) | 914 // IMPORTANT that thse be value-equal with SrcRectConstraint (during transit
ion period) |
904 enum DrawBitmapRectFlags { | 915 enum DrawBitmapRectFlags { |
905 kNone_DrawBitmapRectFlag = 0x0, | 916 kNone_DrawBitmapRectFlag = 0x0, |
906 /** | 917 /** |
907 * When filtering is enabled, allow the color samples outside of | 918 * When filtering is enabled, allow the color samples outside of |
908 * the src rect (but still in the src bitmap) to bleed into the | 919 * the src rect (but still in the src bitmap) to bleed into the |
909 * drawn portion | 920 * drawn portion |
910 */ | 921 */ |
911 kBleed_DrawBitmapRectFlag = 0x1, | 922 kBleed_DrawBitmapRectFlag = 0x1, |
912 }; | 923 }; |
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927 const SkRect& dst, const SkPaint* paint = NULL, | 938 const SkRect& dst, const SkPaint* paint = NULL, |
928 DrawBitmapRectFlags flags = kNone_DrawBitmapRectFlag) { | 939 DrawBitmapRectFlags flags = kNone_DrawBitmapRectFlag) { |
929 SkRect realSrcStorage; | 940 SkRect realSrcStorage; |
930 SkRect* realSrcPtr = NULL; | 941 SkRect* realSrcPtr = NULL; |
931 if (isrc) { | 942 if (isrc) { |
932 realSrcStorage.set(*isrc); | 943 realSrcStorage.set(*isrc); |
933 realSrcPtr = &realSrcStorage; | 944 realSrcPtr = &realSrcStorage; |
934 } | 945 } |
935 this->drawBitmapRectToRect(bitmap, realSrcPtr, dst, paint, flags); | 946 this->drawBitmapRectToRect(bitmap, realSrcPtr, dst, paint, flags); |
936 } | 947 } |
| 948 #endif |
937 | 949 |
938 /** | 950 /** |
939 * Draw the bitmap stretched differentially to fit into dst. | 951 * Draw the bitmap stretched differentially to fit into dst. |
940 * center is a rect within the bitmap, and logically divides the bitmap | 952 * center is a rect within the bitmap, and logically divides the bitmap |
941 * into 9 sections (3x3). For example, if the middle pixel of a [5x5] | 953 * into 9 sections (3x3). For example, if the middle pixel of a [5x5] |
942 * bitmap is the "center", then the center-rect should be [2, 2, 3, 3]. | 954 * bitmap is the "center", then the center-rect should be [2, 2, 3, 3]. |
943 * | 955 * |
944 * If the dst is >= the bitmap size, then... | 956 * If the dst is >= the bitmap size, then... |
945 * - The 4 corners are not stretched at all. | 957 * - The 4 corners are not stretched at all. |
946 * - The sides are stretched in only one axis. | 958 * - The sides are stretched in only one axis. |
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1585 | 1597 |
1586 class SkCanvasClipVisitor { | 1598 class SkCanvasClipVisitor { |
1587 public: | 1599 public: |
1588 virtual ~SkCanvasClipVisitor(); | 1600 virtual ~SkCanvasClipVisitor(); |
1589 virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0; | 1601 virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0; |
1590 virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0; | 1602 virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0; |
1591 virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0; | 1603 virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0; |
1592 }; | 1604 }; |
1593 | 1605 |
1594 #endif | 1606 #endif |
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