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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 "core/layout/svg/SVGTextLayoutEngineSpacing.h" | 20 #include "core/layout/svg/SVGTextLayoutEngineSpacing.h" |
21 | 21 |
22 #include "platform/fonts/Font.h" | 22 #include "platform/fonts/Font.h" |
23 #include "platform/text/Character.h" | 23 #include "platform/text/Character.h" |
24 | 24 |
25 namespace blink { | 25 namespace blink { |
26 | 26 |
27 SVGTextLayoutEngineSpacing::SVGTextLayoutEngineSpacing(const Font& font, | 27 SVGTextLayoutEngineSpacing::SVGTextLayoutEngineSpacing(const Font& font, |
28 float effectiveZoom) | 28 float effectiveZoom) |
29 : m_font(font), m_lastCharacter(0), m_effectiveZoom(effectiveZoom) { | 29 : m_font(font), m_lastCharacter(0), m_effectiveZoom(effectiveZoom) { |
30 ASSERT(m_effectiveZoom); | 30 DCHECK(m_effectiveZoom); |
31 } | 31 } |
32 | 32 |
33 float SVGTextLayoutEngineSpacing::calculateCSSSpacing(UChar currentCharacter) { | 33 float SVGTextLayoutEngineSpacing::calculateCSSSpacing(UChar currentCharacter) { |
34 UChar lastCharacter = m_lastCharacter; | 34 UChar lastCharacter = m_lastCharacter; |
35 m_lastCharacter = currentCharacter; | 35 m_lastCharacter = currentCharacter; |
36 | 36 |
37 if (!m_font.getFontDescription().letterSpacing() && | 37 if (!m_font.getFontDescription().letterSpacing() && |
38 !m_font.getFontDescription().wordSpacing()) | 38 !m_font.getFontDescription().wordSpacing()) |
39 return 0; | 39 return 0; |
40 | 40 |
41 float spacing = m_font.getFontDescription().letterSpacing(); | 41 float spacing = m_font.getFontDescription().letterSpacing(); |
42 if (currentCharacter && lastCharacter && | 42 if (currentCharacter && lastCharacter && |
43 m_font.getFontDescription().wordSpacing()) { | 43 m_font.getFontDescription().wordSpacing()) { |
44 if (Character::treatAsSpace(currentCharacter) && | 44 if (Character::treatAsSpace(currentCharacter) && |
45 !Character::treatAsSpace(lastCharacter)) | 45 !Character::treatAsSpace(lastCharacter)) |
46 spacing += m_font.getFontDescription().wordSpacing(); | 46 spacing += m_font.getFontDescription().wordSpacing(); |
47 } | 47 } |
48 | 48 |
49 if (m_effectiveZoom != 1) | 49 if (m_effectiveZoom != 1) |
50 spacing = spacing / m_effectiveZoom; | 50 spacing = spacing / m_effectiveZoom; |
51 | 51 |
52 return spacing; | 52 return spacing; |
53 } | 53 } |
54 | 54 |
55 } // namespace blink | 55 } // namespace blink |
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