2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
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.
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.
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.
22 #include "core/rendering/svg/SVGTextLayoutEngineSpacing.h"
24 #include "core/svg/SVGLengthContext.h"
25 #include "platform/fonts/Character.h"
26 #include "platform/fonts/Font.h"
30 SVGTextLayoutEngineSpacing::SVGTextLayoutEngineSpacing(const Font& font, float effectiveZoom)
33 , m_effectiveZoom(effectiveZoom)
35 ASSERT(m_effectiveZoom);
38 float SVGTextLayoutEngineSpacing::calculateCSSSpacing(UChar currentCharacter)
40 UChar lastCharacter = m_lastCharacter;
41 m_lastCharacter = currentCharacter;
43 if (!m_font.fontDescription().letterSpacing() && !m_font.fontDescription().wordSpacing())
46 float spacing = m_font.fontDescription().letterSpacing();
47 if (currentCharacter && lastCharacter && m_font.fontDescription().wordSpacing()) {
48 if (Character::treatAsSpace(currentCharacter) && !Character::treatAsSpace(lastCharacter))
49 spacing += m_font.fontDescription().wordSpacing();
52 if (m_effectiveZoom != 1)
53 spacing = spacing / m_effectiveZoom;