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/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
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 "FontCustomPlatformData.h"
#include "FontPlatformData.h"
#include "SharedBuffer.h"
#if USE(ZLIB)
#include "WOFFFileFormat.h"
#endif
#if !HAVE(QRAWFONT)
#include <QFontDatabase>
#endif
#include <QHash>
#include <QStringList>
namespace WebCore {
#if !HAVE(QRAWFONT)
static QHash<int, int> s_customFontUseCount;
#endif
FontCustomPlatformData::~FontCustomPlatformData()
{
#if !HAVE(QRAWFONT)
int useCount = s_customFontUseCount.value(m_handle);
Q_ASSERT(useCount >= 1);
if (useCount <= 1) {
QFontDatabase::removeApplicationFont(m_handle);
s_customFontUseCount.remove(m_handle);
} else
s_customFontUseCount.insert(m_handle, useCount - 1);
#endif
}
FontPlatformData FontCustomPlatformData::fontPlatformData(int size, bool bold, bool italic, FontOrientation, TextOrientation, FontWidthVariant, FontRenderingMode)
{
#if !HAVE(QRAWFONT)
QFont font;
QStringList families = QFontDatabase::applicationFontFamilies(m_handle);
if (!families.isEmpty())
font.setFamily(families.first());
font.setPixelSize(size);
if (bold)
font.setWeight(QFont::Bold);
font.setItalic(italic);
return FontPlatformData(font);
#else
Q_ASSERT(m_rawFont.isValid());
m_rawFont.setPixelSize(qreal(size));
return FontPlatformData(m_rawFont);
#endif
}
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer)
{
ASSERT_ARG(buffer, buffer);
#if USE(ZLIB)
RefPtr<SharedBuffer> sfntBuffer;
if (isWOFF(buffer)) {
Vector<char> sfnt;
if (!convertWOFFToSfnt(buffer, sfnt))
return 0;
sfntBuffer = SharedBuffer::adoptVector(sfnt);
buffer = sfntBuffer.get();
}
#endif // USE(ZLIB)
const QByteArray fontData(buffer->data(), buffer->size());
#if !USE(ZLIB)
if (fontData.startsWith("wOFF")) {
qWarning("WOFF support requires QtWebKit to be built with zlib support.");
return 0;
}
#endif // !USE(ZLIB)
#if !HAVE(QRAWFONT)
int id = QFontDatabase::addApplicationFontFromData(fontData);
if (id == -1)
return 0;
if (s_customFontUseCount.contains(id))
s_customFontUseCount.insert(id, s_customFontUseCount.value(id) + 1);
else
s_customFontUseCount.insert(id, 1);
Q_ASSERT(QFontDatabase::applicationFontFamilies(id).size() > 0);
#else
// Pixel size doesn't matter at this point, it is set in FontCustomPlatformData::fontPlatformData.
QRawFont rawFont(fontData, /*pixelSize = */0, QFont::PreferDefaultHinting);
if (!rawFont.isValid())
return 0;
#endif
FontCustomPlatformData *data = new FontCustomPlatformData;
#if !HAVE(QRAWFONT)
data->m_handle = id;
#else
data->m_rawFont = rawFont;
#endif
return data;
}
bool FontCustomPlatformData::supportsFormat(const String& format)
{
return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "opentype")
#if USE(ZLIB)
|| equalIgnoringCase(format, "woff")
#endif
;
}
}
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