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Side by Side Diff: Source/core/layout/svg/SVGTextLayoutEngineBaseline.cpp

Issue 1033943002: Rename LayoutStyle to papayawhip (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: ensureComputedStyle Created 5 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 * 3 *
4 * This library is free software; you can redistribute it and/or 4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public 5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either 6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version. 7 * version 2 of the License, or (at your option) any later version.
8 * 8 *
9 * This library is distributed in the hope that it will be useful, 9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details. 12 * Library General Public License for more details.
13 * 13 *
14 * You should have received a copy of the GNU Library General Public License 14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to 15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA. 17 * Boston, MA 02110-1301, USA.
18 */ 18 */
19 19
20 #include "config.h" 20 #include "config.h"
21 #include "core/layout/svg/SVGTextLayoutEngineBaseline.h" 21 #include "core/layout/svg/SVGTextLayoutEngineBaseline.h"
22 22
23 #include "core/layout/LayoutObject.h" 23 #include "core/layout/LayoutObject.h"
24 #include "core/layout/style/SVGLayoutStyle.h" 24 #include "core/layout/style/SVGComputedStyle.h"
25 #include "core/layout/svg/SVGTextMetrics.h" 25 #include "core/layout/svg/SVGTextMetrics.h"
26 #include "core/svg/SVGLengthContext.h" 26 #include "core/svg/SVGLengthContext.h"
27 #include "platform/fonts/Font.h" 27 #include "platform/fonts/Font.h"
28 #include "platform/text/UnicodeRange.h" 28 #include "platform/text/UnicodeRange.h"
29 29
30 namespace blink { 30 namespace blink {
31 31
32 SVGTextLayoutEngineBaseline::SVGTextLayoutEngineBaseline(const Font& font) 32 SVGTextLayoutEngineBaseline::SVGTextLayoutEngineBaseline(const Font& font)
33 : m_font(font) 33 : m_font(font)
34 { 34 {
35 } 35 }
36 36
37 float SVGTextLayoutEngineBaseline::calculateBaselineShift(const LayoutStyle& sty le) const 37 float SVGTextLayoutEngineBaseline::calculateBaselineShift(const ComputedStyle& s tyle) const
38 { 38 {
39 const SVGLayoutStyle& svgStyle = style.svgStyle(); 39 const SVGComputedStyle& svgStyle = style.svgStyle();
40 40
41 switch (svgStyle.baselineShift()) { 41 switch (svgStyle.baselineShift()) {
42 case BS_LENGTH: 42 case BS_LENGTH:
43 return SVGLengthContext::valueForLength(svgStyle.baselineShiftValue(), s tyle, m_font.fontDescription().computedPixelSize()); 43 return SVGLengthContext::valueForLength(svgStyle.baselineShiftValue(), s tyle, m_font.fontDescription().computedPixelSize());
44 case BS_SUB: 44 case BS_SUB:
45 return -m_font.fontMetrics().floatHeight() / 2; 45 return -m_font.fontMetrics().floatHeight() / 2;
46 case BS_SUPER: 46 case BS_SUPER:
47 return m_font.fontMetrics().floatHeight() / 2; 47 return m_font.fontMetrics().floatHeight() / 2;
48 default: 48 default:
49 ASSERT_NOT_REACHED(); 49 ASSERT_NOT_REACHED();
50 return 0; 50 return 0;
51 } 51 }
52 } 52 }
53 53
54 EAlignmentBaseline SVGTextLayoutEngineBaseline::dominantBaselineToAlignmentBasel ine(bool isVerticalText, const LayoutObject* textRenderer) const 54 EAlignmentBaseline SVGTextLayoutEngineBaseline::dominantBaselineToAlignmentBasel ine(bool isVerticalText, const LayoutObject* textRenderer) const
55 { 55 {
56 ASSERT(textRenderer); 56 ASSERT(textRenderer);
57 ASSERT(textRenderer->style()); 57 ASSERT(textRenderer->style());
58 ASSERT(textRenderer->parent()); 58 ASSERT(textRenderer->parent());
59 ASSERT(textRenderer->parent()->style()); 59 ASSERT(textRenderer->parent()->style());
60 60
61 const SVGLayoutStyle& style = textRenderer->style()->svgStyle(); 61 const SVGComputedStyle& style = textRenderer->style()->svgStyle();
62 62
63 EDominantBaseline baseline = style.dominantBaseline(); 63 EDominantBaseline baseline = style.dominantBaseline();
64 if (baseline == DB_AUTO) { 64 if (baseline == DB_AUTO) {
65 if (isVerticalText) 65 if (isVerticalText)
66 baseline = DB_CENTRAL; 66 baseline = DB_CENTRAL;
67 else 67 else
68 baseline = DB_ALPHABETIC; 68 baseline = DB_ALPHABETIC;
69 } 69 }
70 70
71 switch (baseline) { 71 switch (baseline) {
(...skipping 62 matching lines...) Expand 10 before | Expand all | Expand 10 after
134 return fontMetrics.floatAscent() * 8 / 10.f; 134 return fontMetrics.floatAscent() * 8 / 10.f;
135 case AB_MATHEMATICAL: 135 case AB_MATHEMATICAL:
136 return fontMetrics.floatAscent() / 2; 136 return fontMetrics.floatAscent() / 2;
137 case AB_BASELINE: 137 case AB_BASELINE:
138 default: 138 default:
139 ASSERT_NOT_REACHED(); 139 ASSERT_NOT_REACHED();
140 return 0; 140 return 0;
141 } 141 }
142 } 142 }
143 143
144 float SVGTextLayoutEngineBaseline::calculateGlyphOrientationAngle(bool isVertica lText, const SVGLayoutStyle& style, const UChar& character) const 144 float SVGTextLayoutEngineBaseline::calculateGlyphOrientationAngle(bool isVertica lText, const SVGComputedStyle& style, const UChar& character) const
145 { 145 {
146 switch (isVerticalText ? style.glyphOrientationVertical() : style.glyphOrien tationHorizontal()) { 146 switch (isVerticalText ? style.glyphOrientationVertical() : style.glyphOrien tationHorizontal()) {
147 case GO_AUTO: { 147 case GO_AUTO: {
148 // Spec: Fullwidth ideographic and fullwidth Latin text will be set with a glyph-orientation of 0-degrees. 148 // Spec: Fullwidth ideographic and fullwidth Latin text will be set with a glyph-orientation of 0-degrees.
149 // Text which is not fullwidth will be set with a glyph-orientation of 9 0-degrees. 149 // Text which is not fullwidth will be set with a glyph-orientation of 9 0-degrees.
150 unsigned unicodeRange = findCharUnicodeRange(character); 150 unsigned unicodeRange = findCharUnicodeRange(character);
151 if (unicodeRange == cRangeSetLatin || unicodeRange == cRangeArabic) 151 if (unicodeRange == cRangeSetLatin || unicodeRange == cRangeArabic)
152 return 90; 152 return 90;
153 153
154 return 0; 154 return 0;
(...skipping 60 matching lines...) Expand 10 before | Expand all | Expand 10 after
215 } 215 }
216 216
217 // Horizontal advance calculation. 217 // Horizontal advance calculation.
218 if (angle && !orientationIsMultiplyOf180Degrees) 218 if (angle && !orientationIsMultiplyOf180Degrees)
219 return metrics.height(); 219 return metrics.height();
220 220
221 return metrics.width(); 221 return metrics.width();
222 } 222 }
223 223
224 } 224 }
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