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Diffstat (limited to 'WebCore/platform/graphics/SimpleFontData.cpp')
| -rw-r--r-- | WebCore/platform/graphics/SimpleFontData.cpp | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/WebCore/platform/graphics/SimpleFontData.cpp b/WebCore/platform/graphics/SimpleFontData.cpp deleted file mode 100644 index 372fcc8..0000000 --- a/WebCore/platform/graphics/SimpleFontData.cpp +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright (C) 2005, 2008 Apple Computer, Inc. All rights reserved. - * Copyright (C) 2006 Alexey Proskuryakov - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of - * its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "config.h" -#include "SimpleFontData.h" - -#include "FontCache.h" -#if ENABLE(SVG_FONTS) -#include "SVGFontData.h" -#include "SVGFontFaceElement.h" -#endif - -#include <wtf/MathExtras.h> - -namespace WebCore { - -SimpleFontData::SimpleFontData(const FontPlatformData& f, bool customFont, bool loading, SVGFontData* svgFontData) - : m_font(f) - , m_treatAsFixedPitch(false) -#if ENABLE(SVG_FONTS) - , m_svgFontData(svgFontData) -#endif - , m_isCustomFont(customFont) - , m_isLoading(loading) - , m_smallCapsFontData(0) -{ -#if ENABLE(SVG_FONTS) && !PLATFORM(QT) - if (SVGFontFaceElement* svgFontFaceElement = svgFontData ? svgFontData->svgFontFaceElement() : 0) { - m_unitsPerEm = svgFontFaceElement->unitsPerEm(); - - double scale = f.size(); - if (m_unitsPerEm) - scale /= m_unitsPerEm; - - m_ascent = static_cast<int>(svgFontFaceElement->ascent() * scale); - m_descent = static_cast<int>(svgFontFaceElement->descent() * scale); - m_xHeight = static_cast<int>(svgFontFaceElement->xHeight() * scale); - m_lineGap = 0.1f * f.size(); - m_lineSpacing = m_ascent + m_descent + m_lineGap; - - m_spaceGlyph = 0; - m_spaceWidth = 0; - m_adjustedSpaceWidth = 0; - determinePitch(); - m_missingGlyphData.fontData = this; - m_missingGlyphData.glyph = 0; - return; - } -#endif - - platformInit(); - - GlyphPage* glyphPageZero = GlyphPageTreeNode::getRootChild(this, 0)->page(); - if (!glyphPageZero) { - LOG_ERROR("Failed to get glyph page zero."); - m_spaceGlyph = 0; - m_spaceWidth = 0; - m_adjustedSpaceWidth = 0; - determinePitch(); - m_missingGlyphData.fontData = this; - m_missingGlyphData.glyph = 0; - return; - } - - // Nasty hack to determine if we should round or ceil space widths. - // If the font is monospace or fake monospace we ceil to ensure that - // every character and the space are the same width. Otherwise we round. - m_spaceGlyph = glyphPageZero->glyphDataForCharacter(' ').glyph; - float width = widthForGlyph(m_spaceGlyph); - m_spaceWidth = width; - determinePitch(); - m_adjustedSpaceWidth = m_treatAsFixedPitch ? ceilf(width) : roundf(width); - - // Force the glyph for ZERO WIDTH SPACE to have zero width, unless it is shared with SPACE. - // Helvetica is an example of a non-zero width ZERO WIDTH SPACE glyph. - // See <http://bugs.webkit.org/show_bug.cgi?id=13178> - // Ask for the glyph for 0 to avoid paging in ZERO WIDTH SPACE. Control characters, including 0, - // are mapped to the ZERO WIDTH SPACE glyph. - Glyph zeroWidthSpaceGlyph = glyphPageZero->glyphDataForCharacter(0).glyph; - if (zeroWidthSpaceGlyph) { - if (zeroWidthSpaceGlyph != m_spaceGlyph) - m_glyphToWidthMap.setWidthForGlyph(zeroWidthSpaceGlyph, 0); - else - LOG_ERROR("Font maps SPACE and ZERO WIDTH SPACE to the same glyph. Glyph width not overridden."); - } - - m_missingGlyphData.fontData = this; - m_missingGlyphData.glyph = 0; -} - -SimpleFontData::~SimpleFontData() -{ - if (!isCustomFont()) { - if (m_smallCapsFontData) - FontCache::releaseFontData(m_smallCapsFontData); - GlyphPageTreeNode::pruneTreeFontData(this); - } - -#if ENABLE(SVG_FONTS) && !PLATFORM(QT) - if (!m_svgFontData || !m_svgFontData->svgFontFaceElement()) -#endif - platformDestroy(); -} - -float SimpleFontData::widthForGlyph(Glyph glyph) const -{ - float width = m_glyphToWidthMap.widthForGlyph(glyph); - if (width != cGlyphWidthUnknown) - return width; - - width = platformWidthForGlyph(glyph); - m_glyphToWidthMap.setWidthForGlyph(glyph, width); - - return width; -} - -const SimpleFontData* SimpleFontData::fontDataForCharacter(UChar32) const -{ - return this; -} - -bool SimpleFontData::isSegmented() const -{ - return false; -} - -} // namespace WebCore |