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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSFONTDATABASE_H
#define QWINDOWSFONTDATABASE_H
#include <qpa/qplatformfontdatabase.h>
#include <QtCore/QSharedPointer>
#include "qtwindows_additional.h"
QT_BEGIN_NAMESPACE
#if !defined(QT_NO_DIRECTWRITE)
struct IDWriteFactory;
struct IDWriteGdiInterop;
#endif
class QWindowsFontEngineData
{
Q_DISABLE_COPY(QWindowsFontEngineData)
public:
QWindowsFontEngineData();
~QWindowsFontEngineData();
uint pow_gamma[256];
bool clearTypeEnabled;
qreal fontSmoothingGamma;
HDC hdc;
#if !defined(QT_NO_DIRECTWRITE)
IDWriteFactory *directWriteFactory;
IDWriteGdiInterop *directWriteGdiInterop;
#endif
};
class QWindowsFontDatabase : public QPlatformFontDatabase
{
public:
QWindowsFontDatabase();
~QWindowsFontDatabase();
void populateFontDatabase() Q_DECL_OVERRIDE;
QFontEngineMulti *fontEngineMulti(QFontEngine *fontEngine, QChar::Script script) Q_DECL_OVERRIDE;
QFontEngine *fontEngine(const QFontDef &fontDef, void *handle) Q_DECL_OVERRIDE;
QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) Q_DECL_OVERRIDE;
QStringList fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const Q_DECL_OVERRIDE;
QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName) Q_DECL_OVERRIDE;
void releaseHandle(void *handle) Q_DECL_OVERRIDE;
QString fontDir() const Q_DECL_OVERRIDE;
QFont defaultFont() const Q_DECL_OVERRIDE { return systemDefaultFont(); }
bool fontsAlwaysScalable() const Q_DECL_OVERRIDE;
void derefUniqueFont(const QString &uniqueFont);
void refUniqueFont(const QString &uniqueFont);
static QFont systemDefaultFont();
static QFontEngine *createEngine(const QFontDef &request,
HDC fontHdc, int dpi, bool rawMode,
const QSharedPointer<QWindowsFontEngineData> &data);
static HFONT systemFont();
static QFont LOGFONT_to_QFont(const LOGFONT& lf, int verticalDPI = 0);
static qreal fontSmoothingGamma();
static LOGFONT fontDefToLOGFONT(const QFontDef &fontDef);
static QStringList extraTryFontsForFamily(const QString &family);
static QString familyForStyleHint(QFont::StyleHint styleHint);
private:
void populate(const QString &family = QString());
void removeApplicationFonts();
QSet<QString> m_families;
struct WinApplicationFont {
HANDLE handle;
QString fileName;
};
QList<WinApplicationFont> m_applicationFonts;
struct UniqueFontData {
HANDLE handle;
QAtomicInt refCount;
};
QMap<QString, UniqueFontData> m_uniqueFontData;
};
QT_END_NAMESPACE
#endif // QWINDOWSFONTDATABASE_H
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