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1 /* | 1 /* |
2 * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved. | 2 * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above | 8 * 1. Redistributions of source code must retain the above |
9 * copyright notice, this list of conditions and the following | 9 * copyright notice, this list of conditions and the following |
10 * disclaimer. | 10 * disclaimer. |
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55 | 55 |
56 RenderFlowThread* flowThread() const { return m_flowThread; } | 56 RenderFlowThread* flowThread() const { return m_flowThread; } |
57 | 57 |
58 // Valid regions do not create circular dependencies with other flows. | 58 // Valid regions do not create circular dependencies with other flows. |
59 bool isValid() const { return m_isValid; } | 59 bool isValid() const { return m_isValid; } |
60 void setIsValid(bool valid) { m_isValid = valid; } | 60 void setIsValid(bool valid) { m_isValid = valid; } |
61 | 61 |
62 bool isFirstRegion() const; | 62 bool isFirstRegion() const; |
63 bool isLastRegion() const; | 63 bool isLastRegion() const; |
64 | 64 |
65 // These methods represent the width and height of a "page" and for a Render
Region they are just the | 65 // These methods represent the width and height of a "page" and for a Render
Region they are just |
66 // content width and content height of a region. For RenderRegionSets, howev
er, they will be the width and | 66 // the content width and content height of a region. For RenderMultiColumnSe
ts, however, they |
67 // height of a single column or page in the set. | 67 // will be the width and height of a single column or page in the set. |
68 virtual LayoutUnit pageLogicalWidth() const; | 68 virtual LayoutUnit pageLogicalWidth() const; |
69 virtual LayoutUnit pageLogicalHeight() const; | 69 virtual LayoutUnit pageLogicalHeight() const; |
70 | 70 |
71 LayoutUnit logicalTopOfFlowThreadContentRect(const LayoutRect&) const; | 71 LayoutUnit logicalTopOfFlowThreadContentRect(const LayoutRect&) const; |
72 LayoutUnit logicalBottomOfFlowThreadContentRect(const LayoutRect&) const; | 72 LayoutUnit logicalBottomOfFlowThreadContentRect(const LayoutRect&) const; |
73 LayoutUnit logicalTopForFlowThreadContent() const { return logicalTopOfFlowT
hreadContentRect(flowThreadPortionRect()); }; | 73 LayoutUnit logicalTopForFlowThreadContent() const { return logicalTopOfFlowT
hreadContentRect(flowThreadPortionRect()); }; |
74 LayoutUnit logicalBottomForFlowThreadContent() const { return logicalBottomO
fFlowThreadContentRect(flowThreadPortionRect()); }; | 74 LayoutUnit logicalBottomForFlowThreadContent() const { return logicalBottomO
fFlowThreadContentRect(flowThreadPortionRect()); }; |
75 | 75 |
76 // This method represents the logical height of the entire flow thread porti
on used by the region or set. | 76 // This method represents the logical height of the entire flow thread porti
on used by the region or set. |
77 // For RenderRegions it matches logicalPaginationHeight(), but for sets it i
s the height of all the pages | 77 // For RenderRegions it matches logicalPaginationHeight(), but for sets it i
s the height of all the pages |
78 // or columns added together. | 78 // or columns added together. |
79 virtual LayoutUnit logicalHeightOfAllFlowThreadContent() const; | 79 virtual LayoutUnit logicalHeightOfAllFlowThreadContent() const; |
80 | 80 |
81 // The top of the nearest page inside the region. For RenderRegions, this is
just the logical top of the | 81 // The top of the nearest page inside the region. For RenderRegions, this is
just the logical top of the |
82 // flow thread portion we contain. For sets, we have to figure out the top o
f the nearest column or | 82 // flow thread portion we contain. For sets, we have to figure out the top o
f the nearest column or |
83 // page. | 83 // page. |
84 virtual LayoutUnit pageLogicalTopForOffset(LayoutUnit offset) const; | 84 virtual LayoutUnit pageLogicalTopForOffset(LayoutUnit offset) const; |
85 | 85 |
86 virtual void expandToEncompassFlowThreadContentsIfNeeded() { }; | |
87 | |
88 virtual void repaintFlowThreadContent(const LayoutRect& repaintRect) const; | 86 virtual void repaintFlowThreadContent(const LayoutRect& repaintRect) const; |
89 | 87 |
90 virtual void collectLayerFragments(LayerFragments&, const LayoutRect&, const
LayoutRect&) { } | 88 virtual void collectLayerFragments(LayerFragments&, const LayoutRect&, const
LayoutRect&) { } |
91 | 89 |
92 virtual bool canHaveChildren() const OVERRIDE FINAL { return false; } | 90 virtual bool canHaveChildren() const OVERRIDE FINAL { return false; } |
93 virtual bool canHaveGeneratedChildren() const OVERRIDE FINAL { return true;
} | 91 virtual bool canHaveGeneratedChildren() const OVERRIDE FINAL { return true;
} |
94 | 92 |
95 virtual const char* renderName() const OVERRIDE { return "RenderRegion"; } | 93 virtual const char* renderName() const OVERRIDE { return "RenderRegion"; } |
96 | 94 |
97 protected: | 95 protected: |
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113 private: | 111 private: |
114 LayoutRect m_flowThreadPortionRect; | 112 LayoutRect m_flowThreadPortionRect; |
115 bool m_isValid : 1; | 113 bool m_isValid : 1; |
116 }; | 114 }; |
117 | 115 |
118 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderRegion, isRenderRegion()); | 116 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderRegion, isRenderRegion()); |
119 | 117 |
120 } // namespace WebCore | 118 } // namespace WebCore |
121 | 119 |
122 #endif // RenderRegion_h | 120 #endif // RenderRegion_h |
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