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/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
Copyright (C) 2008 Holger Hans Peter Freyther
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
This class provides all functionality needed for loading images, style sheets and html
pages from the web. It has a memory cache for these objects.
*/
#include "config.h"
#include "FontCache.h"
#include "FontDescription.h"
#include "FontPlatformData.h"
#include "Font.h"
#include "StringHash.h"
#include <wtf/StdLibExtras.h>
#include <QHash>
namespace WebCore {
FontCache* fontCache()
{
DEFINE_STATIC_LOCAL(FontCache, globalFontCache, ());
return &globalFontCache;
}
FontCache::FontCache()
{
}
void FontCache::getTraitsInFamily(const AtomicString& familyName, Vector<unsigned>& traitsMasks)
{
}
typedef QHash<FontDescription, FontPlatformData*> FontPlatformDataCache;
// using Q_GLOBAL_STATIC leads to crash. TODO investigate the way to fix this.
static FontPlatformDataCache* gFontPlatformDataCache;
uint qHash(const FontDescription& key)
{
uint value = CaseFoldingHash::hash(key.family().family());
value ^= key.computedPixelSize();
value ^= static_cast<int>(key.weight());
return value;
}
FontPlatformData* FontCache::getCachedFontPlatformData(const FontDescription& description, const AtomicString& family, bool checkingAlternateName)
{
if (!gFontPlatformDataCache)
gFontPlatformDataCache = new FontPlatformDataCache;
FontPlatformData* fontData = gFontPlatformDataCache->value(description, 0);
if (!fontData) {
fontData = new FontPlatformData(description);
gFontPlatformDataCache->insert(description, fontData);
}
return fontData;
}
SimpleFontData* FontCache::getCachedFontData(const FontPlatformData*)
{
return 0;
}
FontPlatformData* FontCache::getLastResortFallbackFont(const FontDescription&)
{
return 0;
}
void FontCache::releaseFontData(const WebCore::SimpleFontData*)
{
}
void FontCache::addClient(FontSelector*)
{
}
void FontCache::removeClient(FontSelector*)
{
}
void FontCache::invalidate()
{
if (!gFontPlatformDataCache)
return;
gFontPlatformDataCache->clear();
}
} // namespace WebCore
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