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1 /* | 1 /* |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
3 * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ight reserved. | 3 * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ight reserved. |
4 * Copyright (C) 2010 Google Inc. All rights reserved. | 4 * Copyright (C) 2010 Google Inc. All rights reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
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50 resolver.commitExplicitEmbedding(); | 50 resolver.commitExplicitEmbedding(); |
51 } | 51 } |
52 | 52 |
53 void LineBreaker::reset() | 53 void LineBreaker::reset() |
54 { | 54 { |
55 m_positionedObjects.clear(); | 55 m_positionedObjects.clear(); |
56 m_hyphenated = false; | 56 m_hyphenated = false; |
57 m_clear = CNONE; | 57 m_clear = CNONE; |
58 } | 58 } |
59 | 59 |
60 InlineIterator LineBreaker::nextLineBreak(InlineBidiResolver& resolver, LineInfo
& lineInfo, RenderTextInfo& renderTextInfo, FloatingObject* lastFloatFromPreviou
sLine, unsigned consecutiveHyphenatedLines, WordMeasurements& wordMeasurements) | |
61 { | |
62 ShapeInsideInfo* shapeInsideInfo = m_block->layoutShapeInsideInfo(); | |
63 | |
64 if (!shapeInsideInfo || !shapeInsideInfo->lineOverlapsShapeBounds()) | |
65 return nextSegmentBreak(resolver, lineInfo, renderTextInfo, lastFloatFro
mPreviousLine, consecutiveHyphenatedLines, wordMeasurements); | |
66 | |
67 InlineIterator end = resolver.position(); | |
68 InlineIterator oldEnd = end; | |
69 | |
70 if (!shapeInsideInfo->hasSegments()) { | |
71 end = nextSegmentBreak(resolver, lineInfo, renderTextInfo, lastFloatFrom
PreviousLine, consecutiveHyphenatedLines, wordMeasurements); | |
72 resolver.setPositionIgnoringNestedIsolates(oldEnd); | |
73 return oldEnd; | |
74 } | |
75 | |
76 const SegmentList& segments = shapeInsideInfo->segments(); | |
77 SegmentRangeList& segmentRanges = shapeInsideInfo->segmentRanges(); | |
78 | |
79 for (unsigned i = 0; i < segments.size() && !end.atEnd(); i++) { | |
80 const InlineIterator segmentStart = resolver.position(); | |
81 end = nextSegmentBreak(resolver, lineInfo, renderTextInfo, lastFloatFrom
PreviousLine, consecutiveHyphenatedLines, wordMeasurements); | |
82 | |
83 ASSERT(segmentRanges.size() == i); | |
84 if (resolver.position().atEnd()) { | |
85 segmentRanges.append(LineSegmentRange(segmentStart, end)); | |
86 break; | |
87 } | |
88 if (resolver.position() == end) { | |
89 // Nothing fit this segment | |
90 end = segmentStart; | |
91 segmentRanges.append(LineSegmentRange(segmentStart, segmentStart)); | |
92 resolver.setPositionIgnoringNestedIsolates(segmentStart); | |
93 } else { | |
94 // Note that resolver.position is already skipping some of the white
space at the beginning of the line, | |
95 // so that's why segmentStart might be different than resolver.posit
ion(). | |
96 LineSegmentRange range(resolver.position(), end); | |
97 segmentRanges.append(range); | |
98 resolver.setPosition(end, numberOfIsolateAncestors(end)); | |
99 | |
100 if (lineInfo.previousLineBrokeCleanly()) { | |
101 // If we hit a new line break, just stop adding anything to this
line. | |
102 break; | |
103 } | |
104 } | |
105 } | |
106 resolver.setPositionIgnoringNestedIsolates(oldEnd); | |
107 return end; | |
108 } | |
109 | |
110 InlineIterator LineBreaker::nextSegmentBreak(InlineBidiResolver& resolver, LineI
nfo& lineInfo, RenderTextInfo& renderTextInfo, FloatingObject* lastFloatFromPrev
iousLine, unsigned consecutiveHyphenatedLines, WordMeasurements& wordMeasurement
s) | 60 InlineIterator LineBreaker::nextSegmentBreak(InlineBidiResolver& resolver, LineI
nfo& lineInfo, RenderTextInfo& renderTextInfo, FloatingObject* lastFloatFromPrev
iousLine, unsigned consecutiveHyphenatedLines, WordMeasurements& wordMeasurement
s) |
111 { | 61 { |
112 reset(); | 62 reset(); |
113 | 63 |
114 ASSERT(resolver.position().root() == m_block); | 64 ASSERT(resolver.position().root() == m_block); |
115 | 65 |
116 bool appliedStartWidth = resolver.position().offset() > 0; | 66 bool appliedStartWidth = resolver.position().offset() > 0; |
117 | 67 |
118 LineWidth width(*m_block, lineInfo.isFirstLine(), requiresIndent(lineInfo.is
FirstLine(), lineInfo.previousLineBrokeCleanly(), m_block->style())); | 68 LineWidth width(*m_block, lineInfo.isFirstLine(), requiresIndent(lineInfo.is
FirstLine(), lineInfo.previousLineBrokeCleanly(), m_block->style())); |
119 | 69 |
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155 | 105 |
156 context.increment(); | 106 context.increment(); |
157 } | 107 } |
158 | 108 |
159 context.clearLineBreakIfFitsOnLine(); | 109 context.clearLineBreakIfFitsOnLine(); |
160 | 110 |
161 return context.handleEndOfLine(); | 111 return context.handleEndOfLine(); |
162 } | 112 } |
163 | 113 |
164 } | 114 } |
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