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1 /* | 1 /* |
2 * Copyright (C) 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2007 Apple Inc. 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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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27 #define LayoutState_h | 27 #define LayoutState_h |
28 | 28 |
29 #include "core/layout/ColumnInfo.h" | 29 #include "core/layout/ColumnInfo.h" |
30 #include "platform/geometry/LayoutRect.h" | 30 #include "platform/geometry/LayoutRect.h" |
31 #include "wtf/HashMap.h" | 31 #include "wtf/HashMap.h" |
32 #include "wtf/Noncopyable.h" | 32 #include "wtf/Noncopyable.h" |
33 | 33 |
34 namespace blink { | 34 namespace blink { |
35 | 35 |
36 class ForceHorriblySlowRectMapping; | 36 class ForceHorriblySlowRectMapping; |
37 class RenderBox; | 37 class LayoutBox; |
38 class LayoutFlowThread; | 38 class LayoutFlowThread; |
39 class LayoutObject; | 39 class LayoutObject; |
40 class RenderView; | 40 class RenderView; |
41 | 41 |
42 class LayoutState { | 42 class LayoutState { |
43 WTF_MAKE_NONCOPYABLE(LayoutState); | 43 WTF_MAKE_NONCOPYABLE(LayoutState); |
44 public: | 44 public: |
45 // Constructor for root LayoutState created by RenderView | 45 // Constructor for root LayoutState created by RenderView |
46 LayoutState(LayoutUnit pageLogicalHeight, bool pageLogicalHeightChanged, Ren
derView&); | 46 LayoutState(LayoutUnit pageLogicalHeight, bool pageLogicalHeightChanged, Ren
derView&); |
47 // Constructor for sub-tree layout | 47 // Constructor for sub-tree layout |
48 explicit LayoutState(LayoutObject& root); | 48 explicit LayoutState(LayoutObject& root); |
49 | 49 |
50 LayoutState(RenderBox&, const LayoutSize& offset, LayoutUnit pageLogicalHeig
ht = 0, bool pageHeightLogicalChanged = false, ColumnInfo* = 0, bool containingB
lockLogicalWidthChanged = false); | 50 LayoutState(LayoutBox&, const LayoutSize& offset, LayoutUnit pageLogicalHeig
ht = 0, bool pageHeightLogicalChanged = false, ColumnInfo* = 0, bool containingB
lockLogicalWidthChanged = false); |
51 | 51 |
52 ~LayoutState(); | 52 ~LayoutState(); |
53 | 53 |
54 void clearPaginationInformation(); | 54 void clearPaginationInformation(); |
55 bool isPaginatingColumns() const { return m_columnInfo; } | 55 bool isPaginatingColumns() const { return m_columnInfo; } |
56 bool isPaginated() const { return m_isPaginated; } | 56 bool isPaginated() const { return m_isPaginated; } |
57 | 57 |
58 // The page logical offset is the object's offset from the top of the page i
n the page progression | 58 // The page logical offset is the object's offset from the top of the page i
n the page progression |
59 // direction (so an x-offset in vertical text and a y-offset for horizontal
text). | 59 // direction (so an x-offset in vertical text and a y-offset for horizontal
text). |
60 LayoutUnit pageLogicalOffset(const RenderBox&, const LayoutUnit& childLogica
lOffset) const; | 60 LayoutUnit pageLogicalOffset(const LayoutBox&, const LayoutUnit& childLogica
lOffset) const; |
61 | 61 |
62 void addForcedColumnBreak(const RenderBox&, const LayoutUnit& childLogicalOf
fset); | 62 void addForcedColumnBreak(const LayoutBox&, const LayoutUnit& childLogicalOf
fset); |
63 | 63 |
64 void setColumnInfo(ColumnInfo* columnInfo) { m_columnInfo = columnInfo; } | 64 void setColumnInfo(ColumnInfo* columnInfo) { m_columnInfo = columnInfo; } |
65 | 65 |
66 const LayoutSize& layoutOffset() const { return m_layoutOffset; } | 66 const LayoutSize& layoutOffset() const { return m_layoutOffset; } |
67 const LayoutSize& pageOffset() const { return m_pageOffset; } | 67 const LayoutSize& pageOffset() const { return m_pageOffset; } |
68 LayoutUnit pageLogicalHeight() const { return m_pageLogicalHeight; } | 68 LayoutUnit pageLogicalHeight() const { return m_pageLogicalHeight; } |
69 bool pageLogicalHeightChanged() const { return m_pageLogicalHeightChanged; } | 69 bool pageLogicalHeightChanged() const { return m_pageLogicalHeightChanged; } |
70 bool containingBlockLogicalWidthChanged() const { return m_containingBlockLo
gicalWidthChanged; } | 70 bool containingBlockLogicalWidthChanged() const { return m_containingBlockLo
gicalWidthChanged; } |
71 | 71 |
72 LayoutState* next() const { return m_next; } | 72 LayoutState* next() const { return m_next; } |
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101 LayoutUnit m_pageLogicalHeight; | 101 LayoutUnit m_pageLogicalHeight; |
102 // The offset of the start of the first page in the nearest enclosing pagina
tion model. | 102 // The offset of the start of the first page in the nearest enclosing pagina
tion model. |
103 LayoutSize m_pageOffset; | 103 LayoutSize m_pageOffset; |
104 | 104 |
105 LayoutObject& m_renderer; | 105 LayoutObject& m_renderer; |
106 }; | 106 }; |
107 | 107 |
108 } // namespace blink | 108 } // namespace blink |
109 | 109 |
110 #endif // LayoutState_h | 110 #endif // LayoutState_h |
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