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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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30 class SkMetaData; | 30 class SkMetaData; |
31 class SkPath; | 31 class SkPath; |
32 class SkPicture; | 32 class SkPicture; |
33 class SkPixmap; | 33 class SkPixmap; |
34 class SkRRect; | 34 class SkRRect; |
35 struct SkRSXform; | 35 struct SkRSXform; |
36 class SkSurface; | 36 class SkSurface; |
37 class SkSurface_Base; | 37 class SkSurface_Base; |
38 class SkTextBlob; | 38 class SkTextBlob; |
39 | 39 |
40 /* | |
41 * If you want the legacy cliptolayer flag (i.e. android), then you must have t
he new | |
42 * legacy saveflags. | |
43 */ | |
44 #ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG | |
45 #ifndef SK_SUPPORT_LEGACY_SAVEFLAGS | |
46 #define SK_SUPPORT_LEGACY_SAVEFLAGS | |
47 #endif | |
48 #endif | |
49 | |
50 /** \class SkCanvas | 40 /** \class SkCanvas |
51 | 41 |
52 A Canvas encapsulates all of the state about drawing into a device (bitmap). | 42 A Canvas encapsulates all of the state about drawing into a device (bitmap). |
53 This includes a reference to the device itself, and a stack of matrix/clip | 43 This includes a reference to the device itself, and a stack of matrix/clip |
54 values. For any given draw call (e.g. drawRect), the geometry of the object | 44 values. For any given draw call (e.g. drawRect), the geometry of the object |
55 being drawn is transformed by the concatenation of all the matrices in the | 45 being drawn is transformed by the concatenation of all the matrices in the |
56 stack. The transformed geometry is clipped by the intersection of all of | 46 stack. The transformed geometry is clipped by the intersection of all of |
57 the clips in the stack. | 47 the clips in the stack. |
58 | 48 |
59 While the Canvas holds the state of the drawing device, the state (style) | 49 While the Canvas holds the state of the drawing device, the state (style) |
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1593 | 1583 |
1594 class SkCanvasClipVisitor { | 1584 class SkCanvasClipVisitor { |
1595 public: | 1585 public: |
1596 virtual ~SkCanvasClipVisitor(); | 1586 virtual ~SkCanvasClipVisitor(); |
1597 virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0; | 1587 virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0; |
1598 virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0; | 1588 virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0; |
1599 virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0; | 1589 virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0; |
1600 }; | 1590 }; |
1601 | 1591 |
1602 #endif | 1592 #endif |
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