1 /*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
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
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #if ENABLE(SVG)
23 #include "SVGTextLayoutAttributes.h"
24
25 #include <stdio.h>
26 #include <wtf/text/CString.h>
27
28 namespace WebCore {
29
SVGTextLayoutAttributes(RenderSVGInlineText * context)30 SVGTextLayoutAttributes::SVGTextLayoutAttributes(RenderSVGInlineText* context)
31 : m_context(context)
32 {
33 }
34
reserveCapacity(unsigned length)35 void SVGTextLayoutAttributes::reserveCapacity(unsigned length)
36 {
37 m_positioningLists.xValues.reserveCapacity(length);
38 m_positioningLists.yValues.reserveCapacity(length);
39 m_positioningLists.dxValues.reserveCapacity(length);
40 m_positioningLists.dyValues.reserveCapacity(length);
41 m_positioningLists.rotateValues.reserveCapacity(length);
42 m_textMetricsValues.reserveCapacity(length);
43 }
44
fillWithEmptyValues(unsigned length)45 void SVGTextLayoutAttributes::PositioningLists::fillWithEmptyValues(unsigned length)
46 {
47 xValues.fill(SVGTextLayoutAttributes::emptyValue(), length);
48 yValues.fill(SVGTextLayoutAttributes::emptyValue(), length);
49 dxValues.fill(SVGTextLayoutAttributes::emptyValue(), length);
50 dyValues.fill(SVGTextLayoutAttributes::emptyValue(), length);
51 rotateValues.fill(SVGTextLayoutAttributes::emptyValue(), length);
52 }
53
appendEmptyValues()54 void SVGTextLayoutAttributes::PositioningLists::appendEmptyValues()
55 {
56 xValues.append(SVGTextLayoutAttributes::emptyValue());
57 yValues.append(SVGTextLayoutAttributes::emptyValue());
58 dxValues.append(SVGTextLayoutAttributes::emptyValue());
59 dyValues.append(SVGTextLayoutAttributes::emptyValue());
60 rotateValues.append(SVGTextLayoutAttributes::emptyValue());
61 }
62
safeValueAtPosition(const Vector<float> & values,unsigned position)63 static inline float safeValueAtPosition(const Vector<float>& values, unsigned position)
64 {
65 return position < values.size() ? values[position] : SVGTextLayoutAttributes::emptyValue();
66 }
67
appendValuesFromPosition(const PositioningLists & source,unsigned position)68 void SVGTextLayoutAttributes::PositioningLists::appendValuesFromPosition(const PositioningLists& source, unsigned position)
69 {
70 xValues.append(safeValueAtPosition(source.xValues, position));
71 yValues.append(safeValueAtPosition(source.yValues, position));
72 dxValues.append(safeValueAtPosition(source.dxValues, position));
73 dyValues.append(safeValueAtPosition(source.dyValues, position));
74 rotateValues.append(safeValueAtPosition(source.rotateValues, position));
75 }
76
emptyValue()77 float SVGTextLayoutAttributes::emptyValue()
78 {
79 static float s_emptyValue = std::numeric_limits<float>::max() - 1;
80 return s_emptyValue;
81 }
82
dumpLayoutVector(const Vector<float> & values)83 static inline void dumpLayoutVector(const Vector<float>& values)
84 {
85 if (values.isEmpty()) {
86 fprintf(stderr, "empty");
87 return;
88 }
89
90 unsigned size = values.size();
91 for (unsigned i = 0; i < size; ++i) {
92 float value = values.at(i);
93 if (value == SVGTextLayoutAttributes::emptyValue())
94 fprintf(stderr, "x ");
95 else
96 fprintf(stderr, "%lf ", value);
97 }
98 }
99
dump() const100 void SVGTextLayoutAttributes::dump() const
101 {
102 fprintf(stderr, "context: %p\n", m_context);
103
104 fprintf(stderr, "x values: ");
105 dumpLayoutVector(m_positioningLists.xValues);
106 fprintf(stderr, "\n");
107
108 fprintf(stderr, "y values: ");
109 dumpLayoutVector(m_positioningLists.yValues);
110 fprintf(stderr, "\n");
111
112 fprintf(stderr, "dx values: ");
113 dumpLayoutVector(m_positioningLists.dxValues);
114 fprintf(stderr, "\n");
115
116 fprintf(stderr, "dy values: ");
117 dumpLayoutVector(m_positioningLists.dyValues);
118 fprintf(stderr, "\n");
119
120 fprintf(stderr, "rotate values: ");
121 dumpLayoutVector(m_positioningLists.rotateValues);
122 fprintf(stderr, "\n");
123
124 fprintf(stderr, "character data values:\n");
125 unsigned textMetricsSize = m_textMetricsValues.size();
126 for (unsigned i = 0; i < textMetricsSize; ++i) {
127 const SVGTextMetrics& metrics = m_textMetricsValues.at(i);
128 fprintf(stderr, "| {length=%i, glyphName='%s', unicodeString='%s', width=%lf, height=%lf}\n",
129 metrics.length(), metrics.glyph().name.utf8().data(), metrics.glyph().unicodeString.utf8().data(), metrics.width(), metrics.height());
130 }
131 fprintf(stderr, "\n");
132 }
133
134 }
135
136 #endif // ENABLE(SVG)
137