author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> |
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* Copyright (C) Research In Motion Limited 2010. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#include "config.h" |
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#include "SVGTextChunkLayoutInfo.h" |
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#if ENABLE(SVG) |
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#include "InlineFlowBox.h" |
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#include "SVGInlineTextBox.h" |
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#include "SVGRenderStyle.h" |
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// Text chunk creation is complex and the whole process |
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// can easily be traced by setting this variable > 0. |
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#define DEBUG_CHUNK_BUILDING 0 |
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namespace WebCore { |
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static float cummulatedWidthOrHeightOfTextChunk(SVGTextChunk& chunk, bool calcWidthOnly) |
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{ |
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float length = 0.0f; |
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Vector<SVGChar>::iterator charIt = chunk.start; |
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Vector<SVGInlineBoxCharacterRange>::iterator it = chunk.boxes.begin(); |
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Vector<SVGInlineBoxCharacterRange>::iterator end = chunk.boxes.end(); |
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for (; it != end; ++it) { |
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SVGInlineBoxCharacterRange& range = *it; |
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SVGInlineTextBox* box = static_cast<SVGInlineTextBox*>(range.box); |
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RenderStyle* style = box->renderer()->style(); |
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for (int i = range.startOffset; i < range.endOffset; ++i) { |
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ASSERT(charIt <= chunk.end); |
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// Determine how many characters - starting from the current - can be measured at once. |
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// Important for non-absolute positioned non-latin1 text (ie. Arabic) where ie. the width |
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// of a string is not the sum of the boundaries of all contained glyphs. |
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Vector<SVGChar>::iterator itSearch = charIt + 1; |
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Vector<SVGChar>::iterator endSearch = charIt + range.endOffset - i; |
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while (itSearch != endSearch) { |
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// No need to check for 'isHidden()' here as this function is not called for text paths. |
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if (itSearch->drawnSeperated) |
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break; |
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itSearch++; |
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} |
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unsigned int positionOffset = itSearch - charIt; |
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// Calculate width/height of subrange |
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SVGInlineBoxCharacterRange subRange; |
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subRange.box = range.box; |
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subRange.startOffset = i; |
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subRange.endOffset = i + positionOffset; |
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if (calcWidthOnly) |
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length += cummulatedWidthOfInlineBoxCharacterRange(subRange); |
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else |
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length += cummulatedHeightOfInlineBoxCharacterRange(subRange); |
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// Calculate gap between the previous & current range |
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// <text x="10 50 70">ABCD</text> - we need to take the gaps between A & B into account |
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// so add "40" as width, and analogous for B & C, add "20" as width. |
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if (itSearch > chunk.start && itSearch < chunk.end) { |
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SVGChar& lastCharacter = *(itSearch - 1); |
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SVGChar& currentCharacter = *itSearch; |
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int charsConsumed = 0; |
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float glyphWidth = 0.0f; |
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float glyphHeight = 0.0f; |
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String glyphName; |
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String unicodeString; |
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box->measureCharacter(style, i + positionOffset - 1, charsConsumed, glyphName, unicodeString, glyphWidth, glyphHeight); |
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if (calcWidthOnly) |
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length += currentCharacter.x - lastCharacter.x - glyphWidth; |
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else |
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length += currentCharacter.y - lastCharacter.y - glyphHeight; |
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} |
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// Advance processed characters |
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i += positionOffset - 1; |
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charIt = itSearch; |
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|
102 |
} |
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|
103 |
} |
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|
104 |
|
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|
105 |
ASSERT(charIt == chunk.end); |
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|
106 |
return length; |
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|
107 |
} |
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|
108 |
|
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|
109 |
static float cummulatedWidthOfTextChunk(SVGTextChunk& chunk) |
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|
110 |
{ |
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|
111 |
return cummulatedWidthOrHeightOfTextChunk(chunk, true); |
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112 |
} |
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|
113 |
|
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114 |
static float cummulatedHeightOfTextChunk(SVGTextChunk& chunk) |
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115 |
{ |
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116 |
return cummulatedWidthOrHeightOfTextChunk(chunk, false); |
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117 |
} |
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|
118 |
|
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119 |
float calculateTextAnchorShiftForTextChunk(SVGTextChunk& chunk, ETextAnchor anchor) |
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120 |
{ |
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float shift = 0.0f; |
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122 |
|
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123 |
if (chunk.isVerticalText) |
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shift = cummulatedHeightOfTextChunk(chunk); |
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125 |
else |
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shift = cummulatedWidthOfTextChunk(chunk); |
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|
127 |
|
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if (anchor == TA_MIDDLE) |
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|
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shift *= -0.5f; |
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|
130 |
else |
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shift *= -1.0f; |
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|
132 |
|
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|
133 |
return shift; |
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|
134 |
} |
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|
135 |
|
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|
136 |
static void applyTextAnchorToTextChunk(SVGTextChunk& chunk) |
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|
137 |
{ |
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138 |
// This method is not called for chunks containing chars aligned on a path. |
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|
139 |
// -> all characters are visible, no need to check for "isHidden()" anywhere. |
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|
140 |
|
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|
141 |
if (chunk.anchor == TA_START) |
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|
142 |
return; |
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|
143 |
|
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|
144 |
float shift = calculateTextAnchorShiftForTextChunk(chunk, chunk.anchor); |
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|
145 |
|
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|
146 |
// Apply correction to chunk |
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|
147 |
Vector<SVGChar>::iterator chunkIt = chunk.start; |
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|
148 |
for (; chunkIt != chunk.end; ++chunkIt) { |
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|
149 |
SVGChar& curChar = *chunkIt; |
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|
150 |
|
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|
151 |
if (chunk.isVerticalText) |
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|
152 |
curChar.y += shift; |
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|
153 |
else |
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|
154 |
curChar.x += shift; |
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|
155 |
} |
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|
156 |
|
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|
157 |
// Move inline boxes |
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|
158 |
Vector<SVGInlineBoxCharacterRange>::iterator boxIt = chunk.boxes.begin(); |
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|
159 |
Vector<SVGInlineBoxCharacterRange>::iterator boxEnd = chunk.boxes.end(); |
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|
160 |
|
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|
161 |
for (; boxIt != boxEnd; ++boxIt) { |
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|
162 |
SVGInlineBoxCharacterRange& range = *boxIt; |
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|
163 |
|
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|
164 |
InlineBox* curBox = range.box; |
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|
165 |
ASSERT(curBox->isSVGInlineTextBox()); |
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|
166 |
|
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|
167 |
// Move target box |
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|
168 |
if (chunk.isVerticalText) |
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|
169 |
curBox->setY(curBox->y() + static_cast<int>(shift)); |
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|
170 |
else |
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|
171 |
curBox->setX(curBox->x() + static_cast<int>(shift)); |
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|
172 |
} |
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|
173 |
} |
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|
174 |
|
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|
175 |
float calculateTextLengthCorrectionForTextChunk(SVGTextChunk& chunk, ELengthAdjust lengthAdjust, float& computedLength) |
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|
176 |
{ |
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|
177 |
if (chunk.textLength <= 0.0f) |
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|
178 |
return 0.0f; |
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|
179 |
|
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|
180 |
computedLength = 0.0f; |
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|
181 |
|
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|
182 |
float computedWidth = cummulatedWidthOfTextChunk(chunk); |
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|
183 |
float computedHeight = cummulatedHeightOfTextChunk(chunk); |
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|
184 |
if ((computedWidth <= 0.0f && !chunk.isVerticalText) |
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|
185 |
|| (computedHeight <= 0.0f && chunk.isVerticalText)) |
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|
186 |
return 0.0f; |
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|
187 |
|
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|
188 |
computedLength = chunk.isVerticalText ? computedHeight : computedWidth; |
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|
189 |
if (lengthAdjust == SVGTextContentElement::LENGTHADJUST_SPACINGANDGLYPHS) { |
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|
190 |
if (chunk.isVerticalText) |
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|
191 |
chunk.ctm.scaleNonUniform(1.0f, chunk.textLength / computedLength); |
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|
192 |
else |
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|
193 |
chunk.ctm.scaleNonUniform(chunk.textLength / computedLength, 1.0f); |
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|
194 |
|
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|
195 |
return 0.0f; |
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|
196 |
} |
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|
197 |
|
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|
198 |
return (chunk.textLength - computedLength) / float(chunk.end - chunk.start); |
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|
199 |
} |
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|
200 |
|
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|
201 |
static void applyTextLengthCorrectionToTextChunk(SVGTextChunk& chunk) |
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|
202 |
{ |
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Revision: 201037
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|
203 |
// This method is not called for chunks containing chars aligned on a path. |
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Revision: 201037
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|
204 |
// -> all characters are visible, no need to check for "isHidden()" anywhere. |
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|
205 |
|
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// lengthAdjust="spacingAndGlyphs" is handled by setting a scale factor for the whole chunk |
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float textLength = 0.0f; |
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float spacingToApply = calculateTextLengthCorrectionForTextChunk(chunk, chunk.lengthAdjust, textLength); |
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209 |
|
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if (!chunk.ctm.isIdentity() && chunk.lengthAdjust == SVGTextContentElement::LENGTHADJUST_SPACINGANDGLYPHS) { |
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SVGChar& firstChar = *(chunk.start); |
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212 |
|
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// Assure we apply the chunk scaling in the right origin |
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AffineTransform newChunkCtm(chunk.ctm); |
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newChunkCtm.translateRight(firstChar.x, firstChar.y); |
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newChunkCtm.translate(-firstChar.x, -firstChar.y); |
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217 |
|
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chunk.ctm = newChunkCtm; |
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} |
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220 |
|
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// Apply correction to chunk |
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if (spacingToApply != 0.0f) { |
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Vector<SVGChar>::iterator chunkIt = chunk.start; |
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for (; chunkIt != chunk.end; ++chunkIt) { |
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SVGChar& curChar = *chunkIt; |
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curChar.drawnSeperated = true; |
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227 |
|
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if (chunk.isVerticalText) |
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curChar.y += (chunkIt - chunk.start) * spacingToApply; |
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230 |
else |
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curChar.x += (chunkIt - chunk.start) * spacingToApply; |
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} |
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} |
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} |
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235 |
|
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void SVGTextChunkLayoutInfo::startTextChunk() |
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237 |
{ |
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m_chunk.boxes.clear(); |
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m_chunk.boxes.append(SVGInlineBoxCharacterRange()); |
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240 |
|
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m_chunk.start = m_charsIt; |
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m_assignChunkProperties = true; |
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} |
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244 |
|
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void SVGTextChunkLayoutInfo::closeTextChunk() |
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{ |
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ASSERT(!m_chunk.boxes.last().isOpen()); |
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ASSERT(m_chunk.boxes.last().isClosed()); |
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249 |
|
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m_chunk.end = m_charsIt; |
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ASSERT(m_chunk.end >= m_chunk.start); |
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252 |
|
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m_svgTextChunks.append(m_chunk); |
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} |
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|
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void SVGTextChunkLayoutInfo::buildTextChunks(Vector<SVGChar>::iterator begin, Vector<SVGChar>::iterator end, InlineFlowBox* start) |
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{ |
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m_charsBegin = begin; |
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m_charsEnd = end; |
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|
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m_charsIt = begin; |
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m_chunk = SVGTextChunk(begin); |
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|
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recursiveBuildTextChunks(start); |
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ASSERT(m_charsIt == m_charsEnd); |
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} |
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267 |
|
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void SVGTextChunkLayoutInfo::recursiveBuildTextChunks(InlineFlowBox* start) |
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{ |
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#if DEBUG_CHUNK_BUILDING > 1 |
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fprintf(stderr, " -> buildTextChunks(start=%p)\n", start); |
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#endif |
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|
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for (InlineBox* curr = start->firstChild(); curr; curr = curr->nextOnLine()) { |
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if (curr->renderer()->isText()) { |
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InlineTextBox* textBox = static_cast<InlineTextBox*>(curr); |
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277 |
|
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unsigned length = textBox->len(); |
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ASSERT(length > 0); |
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|
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#if DEBUG_CHUNK_BUILDING > 1 |
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fprintf(stderr, " -> Handle inline text box (%p) with %i characters (start: %i, end: %i), handlingTextPath=%i\n", |
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textBox, length, textBox->start(), textBox->end(), (int) m_handlingTextPath); |
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#endif |
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285 |
|
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RenderText* text = textBox->textRenderer(); |
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ASSERT(text); |
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ASSERT(text->node()); |
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289 |
|
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SVGTextContentElement* textContent = 0; |
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Node* node = text->node()->parent(); |
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while (node && node->isSVGElement() && !textContent) { |
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if (static_cast<SVGElement*>(node)->isTextContent()) |
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textContent = static_cast<SVGTextContentElement*>(node); |
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295 |
else |
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node = node->parentNode(); |
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} |
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ASSERT(textContent); |
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|
299 |
|
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// Start new character range for the first chunk |
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bool isFirstCharacter = m_svgTextChunks.isEmpty() && m_chunk.start == m_charsIt && m_chunk.start == m_chunk.end; |
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if (isFirstCharacter) { |
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ASSERT(m_chunk.boxes.isEmpty()); |
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m_chunk.boxes.append(SVGInlineBoxCharacterRange()); |
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|
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} else |
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|
306 |
ASSERT(!m_chunk.boxes.isEmpty()); |
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|
307 |
|
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Revision: 201037
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parents:
diff
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|
308 |
// Walk string to find out new chunk positions, if existent |
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Revision: 201037
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parents:
diff
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|
309 |
for (unsigned i = 0; i < length; ++i) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
310 |
ASSERT(m_charsIt != m_charsEnd); |
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Revision: 201037
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parents:
diff
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|
311 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
312 |
SVGInlineBoxCharacterRange& range = m_chunk.boxes.last(); |
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Revision: 201037
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parents:
diff
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|
313 |
if (range.isOpen()) { |
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
314 |
range.box = curr; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
315 |
range.startOffset = !i ? 0 : i - 1; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
316 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
317 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
318 |
fprintf(stderr, " | -> Range is open! box=%p, startOffset=%i\n", range.box, range.startOffset); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
319 |
#endif |
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Revision: 201037
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parents:
diff
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|
320 |
} |
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Revision: 201037
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parents:
diff
changeset
|
321 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
322 |
// If a new (or the first) chunk has been started, record it's text-anchor and writing mode. |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
323 |
if (m_assignChunkProperties) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
m_assignChunkProperties = false; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
325 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
m_chunk.isVerticalText = isVerticalWritingMode(text->style()->svgStyle()); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
327 |
m_chunk.isTextPath = m_handlingTextPath; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
m_chunk.anchor = text->style()->svgStyle()->textAnchor(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
329 |
m_chunk.textLength = textContent->textLength().value(textContent); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
330 |
m_chunk.lengthAdjust = (ELengthAdjust) textContent->lengthAdjust(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
fprintf(stderr, " | -> Assign chunk properties, isVerticalText=%i, anchor=%i\n", m_chunk.isVerticalText, m_chunk.anchor); |
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Revision: 201037
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parents:
diff
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|
334 |
#endif |
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Revision: 201037
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parents:
diff
changeset
|
335 |
} |
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Revision: 201037
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parents:
diff
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|
336 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
if (i > 0 && !isFirstCharacter && m_charsIt->newTextChunk) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
// Close mid chunk & character range |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
ASSERT(!range.isOpen()); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
340 |
ASSERT(!range.isClosed()); |
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Revision: 201037
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parents:
diff
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|
341 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
342 |
range.endOffset = i; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
343 |
closeTextChunk(); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
344 |
|
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Revision: 201037
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parents:
diff
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|
345 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
346 |
fprintf(stderr, " | -> Close mid-text chunk, at endOffset: %i and starting new mid chunk!\n", range.endOffset); |
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
347 |
#endif |
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Revision: 201037
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parents:
diff
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|
348 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
349 |
// Prepare for next chunk, if we're not at the end |
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Revision: 201037
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parents:
diff
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|
350 |
startTextChunk(); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
if (i + 1 == length) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
fprintf(stderr, " | -> Record last chunk of inline text box!\n"); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
#endif |
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Revision: 201037
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diff
changeset
|
355 |
|
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
356 |
startTextChunk(); |
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Revision: 201037
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parents:
diff
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|
357 |
SVGInlineBoxCharacterRange& range = m_chunk.boxes.last(); |
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
358 |
|
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Revision: 201037
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parents:
diff
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|
359 |
m_assignChunkProperties = false; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
m_chunk.isVerticalText = isVerticalWritingMode(text->style()->svgStyle()); |
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Revision: 201037
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parents:
diff
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|
361 |
m_chunk.isTextPath = m_handlingTextPath; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
362 |
m_chunk.anchor = text->style()->svgStyle()->textAnchor(); |
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
363 |
m_chunk.textLength = textContent->textLength().value(textContent); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
m_chunk.lengthAdjust = (ELengthAdjust) textContent->lengthAdjust(); |
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
365 |
|
4f2f89ce4247
Revision: 201037
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parents:
diff
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|
366 |
range.box = curr; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
range.startOffset = i; |
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
368 |
|
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
369 |
ASSERT(!range.isOpen()); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
ASSERT(!range.isClosed()); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
} |
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
373 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
// This should only hold true for the first character of the first chunk |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
if (isFirstCharacter) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
376 |
isFirstCharacter = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
++m_charsIt; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
#if DEBUG_CHUNK_BUILDING > 1 |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
fprintf(stderr, " -> Finished inline text box!\n"); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
SVGInlineBoxCharacterRange& range = m_chunk.boxes.last(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
if (!range.isOpen() && !range.isClosed()) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
#if DEBUG_CHUNK_BUILDING > 1 |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
fprintf(stderr, " -> Last range not closed - closing with endOffset: %i\n", length); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
// Current text chunk is not yet closed. Finish the current range, but don't start a new chunk. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
range.endOffset = length; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
if (m_charsIt != m_charsEnd) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
#if DEBUG_CHUNK_BUILDING > 1 |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
fprintf(stderr, " -> Not at last character yet!\n"); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
// If we're not at the end of the last box to be processed, and if the next |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
// character starts a new chunk, then close the current chunk and start a new one. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
if (m_charsIt->newTextChunk) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
#if DEBUG_CHUNK_BUILDING > 1 |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
fprintf(stderr, " -> Next character starts new chunk! Closing current chunk, and starting a new one...\n"); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
closeTextChunk(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
startTextChunk(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
} else { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
// Just start a new character range |
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|
410 |
m_chunk.boxes.append(SVGInlineBoxCharacterRange()); |
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Revision: 201037
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|
411 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
412 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
413 |
fprintf(stderr, " -> Next character does NOT start a new chunk! Starting new character range...\n"); |
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Revision: 201037
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|
414 |
#endif |
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|
415 |
} |
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Revision: 201037
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|
416 |
} else { |
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|
417 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
418 |
fprintf(stderr, " -> Closing final chunk! Finished processing!\n"); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
419 |
#endif |
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Revision: 201037
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|
420 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
421 |
// Close final chunk, once we're at the end of the last box |
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Revision: 201037
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|
422 |
closeTextChunk(); |
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Revision: 201037
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diff
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|
423 |
} |
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Revision: 201037
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diff
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|
424 |
} |
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Revision: 201037
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parents:
diff
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|
425 |
} else { |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
ASSERT(curr->isInlineFlowBox()); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
427 |
InlineFlowBox* flowBox = static_cast<InlineFlowBox*>(curr); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
changeset
|
428 |
|
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Revision: 201037
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diff
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|
429 |
// Skip generated content. |
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Revision: 201037
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|
430 |
if (!flowBox->renderer()->node()) |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
431 |
continue; |
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Revision: 201037
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diff
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|
432 |
|
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Revision: 201037
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|
433 |
bool isTextPath = flowBox->renderer()->node()->hasTagName(SVGNames::textPathTag); |
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Revision: 201037
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diff
changeset
|
434 |
|
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Revision: 201037
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diff
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|
435 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
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|
436 |
fprintf(stderr, " -> Handle inline flow box (%p), isTextPath=%i\n", flowBox, (int) isTextPath); |
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|
437 |
#endif |
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Revision: 201037
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diff
changeset
|
438 |
|
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Revision: 201037
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|
439 |
if (isTextPath) |
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Revision: 201037
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parents:
diff
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|
440 |
m_handlingTextPath = true; |
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Revision: 201037
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parents:
diff
changeset
|
441 |
|
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Revision: 201037
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parents:
diff
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|
442 |
recursiveBuildTextChunks(flowBox); |
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Revision: 201037
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parents:
diff
changeset
|
443 |
|
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Revision: 201037
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parents:
diff
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|
444 |
if (isTextPath) |
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Revision: 201037
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parents:
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|
445 |
m_handlingTextPath = false; |
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Revision: 201037
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parents:
diff
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|
446 |
} |
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Revision: 201037
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parents:
diff
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|
447 |
} |
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Revision: 201037
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parents:
diff
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|
448 |
|
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Revision: 201037
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parents:
diff
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|
449 |
#if DEBUG_CHUNK_BUILDING > 1 |
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Revision: 201037
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parents:
diff
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|
450 |
fprintf(stderr, " <- buildTextChunks(start=%p)\n", start); |
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Revision: 201037
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parents:
diff
changeset
|
451 |
#endif |
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Revision: 201037
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parents:
diff
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|
452 |
} |
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Revision: 201037
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parents:
diff
changeset
|
453 |
|
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
454 |
void SVGTextChunkLayoutInfo::layoutTextChunks() |
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Revision: 201037
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diff
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|
455 |
{ |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
456 |
Vector<SVGTextChunk>::iterator it = m_svgTextChunks.begin(); |
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Revision: 201037
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parents:
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|
457 |
Vector<SVGTextChunk>::iterator end = m_svgTextChunks.end(); |
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Revision: 201037
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diff
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|
458 |
|
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Revision: 201037
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|
459 |
for (; it != end; ++it) { |
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Revision: 201037
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|
460 |
SVGTextChunk& chunk = *it; |
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Revision: 201037
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diff
changeset
|
461 |
|
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Revision: 201037
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diff
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|
462 |
#if DEBUG_CHUNK_BUILDING > 0 |
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Revision: 201037
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|
463 |
{ |
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Revision: 201037
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diff
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|
464 |
fprintf(stderr, "Handle TEXT CHUNK! anchor=%i, textLength=%f, lengthAdjust=%i, isVerticalText=%i, isTextPath=%i start=%p, end=%p -> dist: %i\n", |
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Revision: 201037
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|
465 |
(int) chunk.anchor, chunk.textLength, (int) chunk.lengthAdjust, (int) chunk.isVerticalText, |
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Revision: 201037
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|
466 |
(int) chunk.isTextPath, chunk.start, chunk.end, (unsigned int) (chunk.end - chunk.start)); |
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Revision: 201037
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diff
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|
467 |
|
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Revision: 201037
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parents:
diff
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|
468 |
Vector<SVGInlineBoxCharacterRange>::iterator boxIt = chunk.boxes.begin(); |
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Revision: 201037
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parents:
diff
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|
469 |
Vector<SVGInlineBoxCharacterRange>::iterator boxEnd = chunk.boxes.end(); |
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Revision: 201037
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parents:
diff
changeset
|
470 |
|
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Revision: 201037
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parents:
diff
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|
471 |
unsigned int i = 0; |
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Revision: 201037
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parents:
diff
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|
472 |
for (; boxIt != boxEnd; ++boxIt) { |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
SVGInlineBoxCharacterRange& range = *boxIt; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
++i; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
fprintf(stderr, " -> RANGE %i STARTOFFSET: %i, ENDOFFSET: %i, BOX: %p\n", i, range.startOffset, range.endOffset, range.box); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
476 |
} |
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
477 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
#endif |
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Revision: 201037
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parents:
diff
changeset
|
479 |
|
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
480 |
if (chunk.isTextPath) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
continue; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
// text-path & textLength, with lengthAdjust="spacing" is already handled for textPath layouts. |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
applyTextLengthCorrectionToTextChunk(chunk); |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
// text-anchor is already handled for textPath layouts. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
applyTextAnchorToTextChunk(chunk); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
} // namespace WebCore |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
|
4f2f89ce4247
Revision: 201037
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parents:
diff
changeset
|
493 |
#endif // ENABLE(SVG) |