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/*
* Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* 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.
*
*/
#include "config.h"
#include "FontCustomPlatformData.h"
#include "FontPlatformData.h"
#include "OpenTypeUtilities.h"
#include "SharedBuffer.h"
#include "WOFFFileFormat.h"
#include <ApplicationServices/ApplicationServices.h>
#include <WebKitSystemInterface/WebKitSystemInterface.h>
#include <wtf/RetainPtr.h>
#include <wtf/text/Base64.h>
namespace WebCore {
using namespace std;
FontCustomPlatformData::~FontCustomPlatformData()
{
if (m_fontReference)
RemoveFontMemResourceEx(m_fontReference);
}
FontPlatformData FontCustomPlatformData::fontPlatformData(int size, bool bold, bool italic, FontOrientation, FontWidthVariant, FontRenderingMode renderingMode)
{
ASSERT(m_fontReference);
LOGFONT& logFont = *static_cast<LOGFONT*>(malloc(sizeof(LOGFONT)));
memcpy(logFont.lfFaceName, m_name.charactersWithNullTermination().data(), sizeof(logFont.lfFaceName[0]) * min(static_cast<size_t>(LF_FACESIZE), 1 + m_name.length()));
logFont.lfHeight = -size;
if (renderingMode == NormalRenderingMode)
logFont.lfHeight *= 32;
logFont.lfWidth = 0;
logFont.lfEscapement = 0;
logFont.lfOrientation = 0;
logFont.lfUnderline = false;
logFont.lfStrikeOut = false;
logFont.lfCharSet = DEFAULT_CHARSET;
logFont.lfOutPrecision = OUT_TT_ONLY_PRECIS;
logFont.lfQuality = CLEARTYPE_QUALITY;
logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
logFont.lfItalic = italic;
logFont.lfWeight = bold ? 700 : 400;
HFONT hfont = CreateFontIndirect(&logFont);
RetainPtr<CGFontRef> cgFont = adoptCF(CGFontCreateWithPlatformFont(&logFont));
return FontPlatformData(hfont, cgFont.get(), size, bold, italic, renderingMode == AlternateRenderingMode);
}
// Creates a unique and unpredictable font name, in order to avoid collisions and to
// not allow access from CSS.
static String createUniqueFontName()
{
GUID fontUuid;
CoCreateGuid(&fontUuid);
String fontName = base64Encode(reinterpret_cast<char*>(&fontUuid), sizeof(fontUuid));
ASSERT(fontName.length() < LF_FACESIZE);
return fontName;
}
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer)
{
ASSERT_ARG(buffer, buffer);
RefPtr<SharedBuffer> sfntBuffer;
if (isWOFF(buffer)) {
Vector<char> sfnt;
if (!convertWOFFToSfnt(buffer, sfnt))
return 0;
sfntBuffer = SharedBuffer::adoptVector(sfnt);
buffer = sfntBuffer.get();
}
String fontName = createUniqueFontName();
HANDLE fontReference;
fontReference = renameAndActivateFont(buffer, fontName);
if (!fontReference)
return 0;
return new FontCustomPlatformData(fontReference, fontName);
}
bool FontCustomPlatformData::supportsFormat(const String& format)
{
return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "opentype") || equalIgnoringCase(format, "woff");
}
}
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