cc/stubs/Region.h - Issue 11366094: cc: Create a Region class that wraps SkRegion, to replace use of WebCore::Region.

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Issue 11366094: cc: Create a Region class that wraps SkRegion, to replace use of WebCore::Region. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Move deg2rad etc to MathUtil Created 8 years, 1 month ago

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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #ifndef CC_STUBS_REGION_H_

6 #define CC_STUBS_REGION_H_

7

8 #if INSIDE_WEBKIT_BUILD

9 #include "Source/WebCore/platform/graphics/Region.h"

10 #else

11 #include "third_party/WebKit/Source/WebCore/platform/graphics/Region.h"

12 #endif

13 #include "base/logging.h"

14 #include "ui/gfx/rect.h"

15

16 namespace cc {

17

18 class Region : public WebCore::Region {

19 public:

20 Region() { }

21

22 Region(const WebCore::Region& region)

23 : WebCore::Region(region)

24 {

25 }

26

27 Region(const gfx::Rect& rect)

28 : WebCore::Region(WebCore::IntRect(rect.x(), rect.y(), rect.width(), rec t.height()))

29 {

30 }

31

32 bool IsEmpty() const { return isEmpty(); }

33

34 bool Contains(const gfx::Point& point) const { return contains(WebCore::IntP oint(point.x(), point.y())); }

35 bool Contains(const gfx::Rect& rect) const { return contains(WebCore::IntRec t(rect.x(), rect.y(), rect.width(), rect.height())); }

36 void Subtract(const gfx::Rect& rect) { subtract(WebCore::IntRect(rect.x(), r ect.y(), rect.width(), rect.height())); }

37 void Subtract(const Region& region) { subtract(region); }

38 void Union(const gfx::Rect& rect) { unite(WebCore::IntRect(rect.x(), rect.y( ), rect.width(), rect.height())); }

39 void Union(const Region& region) { unite(region); }

40 void Intersect(const gfx::Rect& rect) { intersect(WebCore::IntRect(rect.x(), rect.y(), rect.width(), rect.height())); }

41 void Intersect(const Region& region) { intersect(region); }

42

43 gfx::Rect bounds() const

44 {

45 WebCore::IntRect bounds = WebCore::Region::bounds();

46 return gfx::Rect(bounds.x(), bounds.y(), bounds.width(), bounds.height() );

47 }

48

49 class Iterator {

50 public:

51 Iterator(const Region& region);

52 ~Iterator();

53

54 gfx::Rect rect() const {

55 DCHECK(has_rect());

56 if (!has_rect())

57 return gfx::Rect();

58 return gfx::Rect(m_rects[m_pos].x(), m_rects[m_pos].y(), m_rects[m_p os].width(), m_rects[m_pos].height());

59 }

60

61 void next() { ++m_pos; }

62 bool has_rect() const { return m_pos < m_rects.size(); }

63

64 // It is expensive to construct the iterator just to get this size. Only

65 // do this for testing.

66 size_t size() const { return m_rects.size(); }

67 private:

68 size_t m_pos;

69 Vector<WebCore::IntRect> m_rects;

70 };

71

72 private:

73 bool isEmpty() const { return WebCore::Region::isEmpty(); }

74 bool contains(const WebCore::IntPoint& point) const { return WebCore::Region ::contains(point); }

75 bool contains(const WebCore::IntRect& rect) const { return WebCore::Region:: contains(rect); }

76 void subtract(const WebCore::IntRect& rect) { return WebCore::Region::subtra ct(rect); }

77 void subtract(const Region& region) { return WebCore::Region::subtract(regio n); }

78 void unite(const WebCore::IntRect& rect) { return WebCore::Region::unite(rec t); }

79 void unite(const Region& region) { return WebCore::Region::unite(region); }

80 void intersect(const WebCore::IntRect& rect) { return WebCore::Region::inter sect(rect); }

81 void intersect(const Region& region) { return WebCore::Region::intersect(reg ion); }

82 Vector<WebCore::IntRect> rects() const { return WebCore::Region::rects(); }

83 };

84

85 inline Region subtract(const Region& region, const gfx::Rect& rect) { return Web Core::intersect(region, WebCore::IntRect(rect.x(), rect.y(), rect.width(), rect. height())); }

86 inline Region intersect(const Region& region, const gfx::Rect& rect) { return We bCore::intersect(region, WebCore::IntRect(rect.x(), rect.y(), rect.width(), rect .height())); }

87

88 inline Region::Iterator::Iterator(const Region& region)

89 : m_pos(0)

90 , m_rects(region.rects())

91 {

92 }

93

94 inline Region::Iterator::~Iterator() { }

95

96 }

97

98 #endif // CC_STUBS_REGION_H_

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