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/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
Copyright (C) 2008 Holger Hans Peter Freyther
Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
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.
*/
#ifndef FontPlatformData_h
#define FontPlatformData_h
#include <wtf/Forward.h>
#include "FontDescription.h"
#include "FontOrientation.h"
#include <QFont>
#include <QHash>
namespace WebCore {
class FontPlatformDataPrivate : public Noncopyable {
public:
FontPlatformDataPrivate()
: refCount(1)
, size(font.pixelSize())
, bold(font.bold())
, oblique(false)
{}
FontPlatformDataPrivate(const float size, const bool bold, const bool oblique)
: refCount(1)
, size(size)
, bold(bold)
, oblique(oblique)
{}
FontPlatformDataPrivate(const QFont& font)
: refCount(1)
, font(font)
, size(font.pixelSize())
, bold(font.bold())
, oblique(false)
{}
unsigned refCount;
QFont font;
float size;
bool bold : 1;
bool oblique : 1;
};
class FontPlatformData : public FastAllocBase {
public:
FontPlatformData(float size, bool bold, bool oblique);
FontPlatformData(const FontPlatformData &);
FontPlatformData(const FontDescription&, const AtomicString& familyName, int wordSpacing = 0, int letterSpacing = 0);
FontPlatformData(const QFont& font)
: m_data(new FontPlatformDataPrivate(font))
{}
FontPlatformData(WTF::HashTableDeletedValueType)
: m_data(reinterpret_cast<FontPlatformDataPrivate*>(-1))
{}
~FontPlatformData();
FontPlatformData& operator=(const FontPlatformData&);
bool operator==(const FontPlatformData&) const;
bool isHashTableDeletedValue() const
{
return m_data == reinterpret_cast<FontPlatformDataPrivate*>(-1);
}
static inline QFont::Weight toQFontWeight(FontWeight fontWeight)
{
switch (fontWeight) {
case FontWeight100:
case FontWeight200:
return QFont::Light; // QFont::Light == Weight of 25
case FontWeight600:
return QFont::DemiBold; // QFont::DemiBold == Weight of 63
case FontWeight700:
case FontWeight800:
return QFont::Bold; // QFont::Bold == Weight of 75
case FontWeight900:
return QFont::Black; // QFont::Black == Weight of 87
case FontWeight300:
case FontWeight400:
case FontWeight500:
default:
return QFont::Normal; // QFont::Normal == Weight of 50
}
}
QFont font() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->font;
return QFont();
}
float size() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->size;
return 0.0f;
}
QString family() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->font.family();
return QString();
}
bool bold() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->bold;
return false;
}
bool italic() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->font.italic();
return false;
}
bool smallCaps() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data)
return m_data->font.capitalization() == QFont::SmallCaps;
return false;
}
int pixelSize() const
{
Q_ASSERT(m_data != reinterpret_cast<FontPlatformDataPrivate*>(-1));
if (m_data) {
// WebKit allows font size zero but QFont does not.
if (!m_data->size)
return m_data->size;
return m_data->font.pixelSize();
}
return 0;
}
FontOrientation orientation() const { return Horizontal; } // FIXME: Implement.
unsigned hash() const;
#ifndef NDEBUG
String description() const;
#endif
private:
FontPlatformDataPrivate* m_data;
};
} // namespace WebCore
#endif // FontPlatformData_h
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