OLD | NEW |
1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SKIA_EXT_ANALYSIS_CANVAS_H_ | 5 #ifndef SKIA_EXT_ANALYSIS_CANVAS_H_ |
6 #define SKIA_EXT_ANALYSIS_CANVAS_H_ | 6 #define SKIA_EXT_ANALYSIS_CANVAS_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "third_party/skia/include/core/SkBitmapDevice.h" | 9 #include "third_party/skia/include/core/SkBitmapDevice.h" |
10 #include "third_party/skia/include/core/SkCanvas.h" | 10 #include "third_party/skia/include/core/SkCanvas.h" |
11 #include "third_party/skia/include/core/SkPicture.h" | 11 #include "third_party/skia/include/core/SkPicture.h" |
12 | 12 |
13 namespace skia { | 13 namespace skia { |
14 | 14 |
15 class AnalysisDevice; | 15 class AnalysisDevice; |
16 | 16 |
17 // Does not render anything, but gathers statistics about a region | 17 // Does not render anything, but gathers statistics about a region |
18 // (specified as a clip rectangle) of an SkPicture as the picture is | 18 // (specified as a clip rectangle) of an SkPicture as the picture is |
19 // played back through it. | 19 // played back through it. |
20 // To use: create a SkBitmap with kNo_Config, create an AnalysisDevice | 20 // To use: create a SkBitmap with kNo_Config, create an AnalysisDevice |
21 // using that bitmap, and create an AnalysisCanvas using the device. | 21 // using that bitmap, and create an AnalysisCanvas using the device. |
22 // Play a picture into the canvas, and then check result. | 22 // Play a picture into the canvas, and then check result. |
23 class SK_API AnalysisCanvas : public SkCanvas, public SkDrawPictureCallback { | 23 class SK_API AnalysisCanvas : public SkCanvas { |
24 public: | 24 public: |
25 AnalysisCanvas(AnalysisDevice*); | 25 explicit AnalysisCanvas(AnalysisDevice* device); |
26 virtual ~AnalysisCanvas(); | 26 virtual ~AnalysisCanvas(); |
27 | 27 |
28 // Returns true when a SkColor can be used to represent result. | 28 // Returns true when a SkColor can be used to represent result. |
29 bool GetColorIfSolid(SkColor* color) const; | 29 bool GetColorIfSolid(SkColor* color) const; |
30 bool HasText() const; | 30 bool HasText() const; |
31 | 31 |
32 // SkDrawPictureCallback override. | |
33 virtual bool abortDrawing() OVERRIDE; | |
34 | |
35 // SkCanvas overrides. | 32 // SkCanvas overrides. |
36 virtual bool clipRect(const SkRect& rect, | 33 virtual bool clipRect(const SkRect& rect, |
37 SkRegion::Op op = SkRegion::kIntersect_Op, | 34 SkRegion::Op op = SkRegion::kIntersect_Op, |
38 bool do_anti_alias = false) OVERRIDE; | 35 bool do_anti_alias = false) OVERRIDE; |
39 virtual bool clipPath(const SkPath& path, | 36 virtual bool clipPath(const SkPath& path, |
40 SkRegion::Op op = SkRegion::kIntersect_Op, | 37 SkRegion::Op op = SkRegion::kIntersect_Op, |
41 bool do_anti_alias = false) OVERRIDE; | 38 bool do_anti_alias = false) OVERRIDE; |
42 virtual bool clipRRect(const SkRRect& rrect, | 39 virtual bool clipRRect(const SkRRect& rrect, |
43 SkRegion::Op op = SkRegion::kIntersect_Op, | 40 SkRegion::Op op = SkRegion::kIntersect_Op, |
44 bool do_anti_alias = false) OVERRIDE; | 41 bool do_anti_alias = false) OVERRIDE; |
(...skipping 11 matching lines...) Expand all Loading... |
56 int saved_stack_size_; | 53 int saved_stack_size_; |
57 int force_not_solid_stack_level_; | 54 int force_not_solid_stack_level_; |
58 int force_not_transparent_stack_level_; | 55 int force_not_transparent_stack_level_; |
59 }; | 56 }; |
60 | 57 |
61 // TODO(robertphillips): Once Skia's SkBaseDevice API is refactored to | 58 // TODO(robertphillips): Once Skia's SkBaseDevice API is refactored to |
62 // remove the bitmap-specific entry points, it might make sense for this | 59 // remove the bitmap-specific entry points, it might make sense for this |
63 // to be derived from SkBaseDevice (rather than SkBitmapDevice) | 60 // to be derived from SkBaseDevice (rather than SkBitmapDevice) |
64 class SK_API AnalysisDevice : public SkBitmapDevice { | 61 class SK_API AnalysisDevice : public SkBitmapDevice { |
65 public: | 62 public: |
| 63 // |analysis_rect| is in device space. |
| 64 AnalysisDevice(const SkBitmap& bitmap, SkRect analysis_rect); |
| 65 // Analyze the entire bitmap. |
66 AnalysisDevice(const SkBitmap& bitmap); | 66 AnalysisDevice(const SkBitmap& bitmap); |
67 virtual ~AnalysisDevice(); | 67 virtual ~AnalysisDevice(); |
68 | 68 |
69 bool GetColorIfSolid(SkColor* color) const; | 69 bool GetColorIfSolid(SkColor* color) const; |
70 bool HasText() const; | 70 bool HasText() const; |
71 | 71 |
72 void SetForceNotSolid(bool flag); | 72 void SetForceNotSolid(bool flag); |
73 void SetForceNotTransparent(bool flag); | 73 void SetForceNotTransparent(bool flag); |
74 | 74 |
| 75 SkRect AnalysisRect() const { return analysis_rect_; } |
| 76 |
75 protected: | 77 protected: |
76 // SkBaseDevice overrides. | 78 // SkBaseDevice overrides. |
77 virtual void clear(SkColor color) OVERRIDE; | 79 virtual void clear(SkColor color) OVERRIDE; |
78 virtual void drawPaint(const SkDraw& draw, const SkPaint& paint) OVERRIDE; | 80 virtual void drawPaint(const SkDraw& draw, const SkPaint& paint) OVERRIDE; |
79 virtual void drawPoints(const SkDraw& draw, | 81 virtual void drawPoints(const SkDraw& draw, |
80 SkCanvas::PointMode mode, | 82 SkCanvas::PointMode mode, |
81 size_t count, | 83 size_t count, |
82 const SkPoint points[], | 84 const SkPoint points[], |
83 const SkPaint& paint) OVERRIDE; | 85 const SkPaint& paint) OVERRIDE; |
84 virtual void drawRect(const SkDraw& draw, | 86 virtual void drawRect(const SkDraw& draw, |
(...skipping 65 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
150 const SkPaint& paint) OVERRIDE; | 152 const SkPaint& paint) OVERRIDE; |
151 virtual void drawDevice(const SkDraw& draw, | 153 virtual void drawDevice(const SkDraw& draw, |
152 SkBaseDevice* device, | 154 SkBaseDevice* device, |
153 int x, | 155 int x, |
154 int y, | 156 int y, |
155 const SkPaint& paint) OVERRIDE; | 157 const SkPaint& paint) OVERRIDE; |
156 | 158 |
157 private: | 159 private: |
158 typedef SkBitmapDevice INHERITED; | 160 typedef SkBitmapDevice INHERITED; |
159 | 161 |
| 162 SkRect analysis_rect_; |
160 bool is_forced_not_solid_; | 163 bool is_forced_not_solid_; |
161 bool is_forced_not_transparent_; | 164 bool is_forced_not_transparent_; |
162 bool is_solid_color_; | 165 bool is_solid_color_; |
163 SkColor color_; | 166 SkColor color_; |
164 bool is_transparent_; | 167 bool is_transparent_; |
165 bool has_text_; | 168 bool has_text_; |
166 }; | 169 }; |
167 | 170 |
168 } // namespace skia | 171 } // namespace skia |
169 | 172 |
170 #endif // SKIA_EXT_ANALYSIS_CANVAS_H_ | 173 #endif // SKIA_EXT_ANALYSIS_CANVAS_H_ |
171 | 174 |
OLD | NEW |