Windows-4.7.4/src/3rdparty/webkit/WebCore/platform/graphics/GlyphMetricsMap.cpp

/*
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 * Redistribution and use in source and binary forms, with or without
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 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
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 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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#include "config.h"
#include "GlyphMetricsMap.h"

namespace WebCore {

GlyphMetricsMap::GlyphMetricsPage* GlyphMetricsMap::locatePageSlowCase(unsigned pageNumber)
{
    GlyphMetricsPage* page;
    if (!pageNumber) {
        ASSERT(!m_filledPrimaryPage);
        page = &m_primaryPage;
        m_filledPrimaryPage = true;
    } else {
        if (m_pages) {
            if ((page = m_pages->get(pageNumber)))
                return page;
        } else
            m_pages.set(new HashMap<int, GlyphMetricsPage*>);
        page = new GlyphMetricsPage;
        m_pages->set(pageNumber, page);
    }

    GlyphMetrics unknownMetrics;
    unknownMetrics.horizontalAdvance = cGlyphSizeUnknown;
    unknownMetrics.boundingBox.setWidth(cGlyphSizeUnknown);
    unknownMetrics.boundingBox.setHeight(cGlyphSizeUnknown);
    // Fill in the whole page with the unknown glyph information.
    for (unsigned i = 0; i < GlyphMetricsPage::size; i++)
        page->setMetricsForIndex(i, unknownMetrics);

    return page;
}

}