Source/core/layout/style/ShadowList.h - Issue 1045723009: Move core/layout/style to core/style

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Issue 1045723009: Move core/layout/style to core/style (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 5 years, 8 months ago

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1 /*

2 * Copyright (C) 2013 Google Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are

6 * met:

7 *

8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above

11 * copyright notice, this list of conditions and the following disclaimer

12 * in the documentation and/or other materials provided with the

13 * distribution.

14 * * Neither the name of Google Inc. nor the names of its

15 * contributors may be used to endorse or promote products derived from

16 * this software without specific prior written permission.

17 *

18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

29 */

30

31 #ifndef ShadowList_h

32 #define ShadowList_h

33

34 #include "core/layout/style/ShadowData.h"

35 #include "platform/geometry/FloatRectOutsets.h"

36 #include "platform/geometry/LayoutRect.h"

37 #include "platform/graphics/DrawLooperBuilder.h"

38 #include "wtf/PassOwnPtr.h"

39 #include "wtf/RefCounted.h"

40 #include "wtf/Vector.h"

41

42 namespace blink {

43

44 class FloatRect;

45 class LayoutRect;

46

47 typedef Vector<ShadowData, 1> ShadowDataVector;

48

49 // These are used to store shadows in specified order, but we usually want to

50 // iterate over them backwards as the first-specified shadow is painted on top.

51 class ShadowList : public RefCounted<ShadowList> {

52 public:

53 // This consumes passed in vector.

54 static PassRefPtr<ShadowList> adopt(ShadowDataVector& shadows)

55 {

56 return adoptRef(new ShadowList(shadows));

57 }

58 const ShadowDataVector& shadows() const { return m_shadows; }

59 bool operator==(const ShadowList& o) const { return m_shadows == o.m_shadows ; }

60 bool operator!=(const ShadowList& o) const { return !(*this == o); }

61

62 static PassRefPtr<ShadowList> blend(const ShadowList* from, const ShadowList * to, double progress);

63

64 // Outsets needed to include all shadows in this list, as well as the

65 // source (i.e. no outsets will be negative).

66 FloatRectOutsets rectOutsetsIncludingOriginal() const;

67

68 void adjustRectForShadow(LayoutRect&) const;

69 void adjustRectForShadow(FloatRect&) const;

70

71 PassOwnPtr<DrawLooperBuilder> createDrawLooper(DrawLooperBuilder::ShadowAlph aMode, bool isHorizontal = true) const;

72

73 private:

74 ShadowList(ShadowDataVector& shadows)

75 {

76 // If we have no shadows, we use a null ShadowList

77 ASSERT(!shadows.isEmpty());

78 m_shadows.swap(shadows);

79 m_shadows.shrinkToFit();

80 }

81 ShadowDataVector m_shadows;

82 };

83

84 } // namespace blink

85

86 #endif // ShadowList_h

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