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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPLATFORMFONTDATABASE_H
#define QPLATFORMFONTDATABASE_H
//
// W A R N I N G
// -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//
#include <QtCore/qconfig.h>
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtCore/QList>
#include <QtCore/QHash>
#include <QtGui/QFontDatabase>
#include <QtGui/private/qfont_p.h>
QT_BEGIN_NAMESPACE
class QWritingSystemsPrivate;
class Q_GUI_EXPORT QSupportedWritingSystems
{
public:
QSupportedWritingSystems();
QSupportedWritingSystems(const QSupportedWritingSystems &other);
QSupportedWritingSystems &operator=(const QSupportedWritingSystems &other);
~QSupportedWritingSystems();
void setSupported(QFontDatabase::WritingSystem, bool supported = true);
bool supported(QFontDatabase::WritingSystem) const;
private:
void detach();
QWritingSystemsPrivate *d;
friend Q_GUI_EXPORT bool operator==(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
friend Q_GUI_EXPORT bool operator!=(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
};
Q_GUI_EXPORT bool operator==(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
Q_GUI_EXPORT bool operator!=(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
class QFontRequestPrivate;
class QFontEngineMulti;
class Q_GUI_EXPORT QPlatformFontDatabase
{
public:
virtual ~QPlatformFontDatabase();
virtual void populateFontDatabase();
virtual void populateFamily(const QString &familyName);
virtual void invalidate();
virtual QFontEngineMulti *fontEngineMulti(QFontEngine *fontEngine, QChar::Script script);
virtual QFontEngine *fontEngine(const QFontDef &fontDef, void *handle);
virtual QStringList fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const;
virtual QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName);
virtual void releaseHandle(void *handle);
virtual QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference);
virtual QString fontDir() const;
virtual QFont defaultFont() const;
virtual bool isPrivateFontFamily(const QString &family) const;
virtual QString resolveFontFamilyAlias(const QString &family) const;
virtual bool fontsAlwaysScalable() const;
virtual QList<int> standardSizes() const;
// helper
static QSupportedWritingSystems writingSystemsFromTrueTypeBits(quint32 unicodeRange[4], quint32 codePageRange[2]);
static QFont::Weight weightFromInteger(int weight);
//callback
static void registerQPF2Font(const QByteArray &dataArray, void *handle);
static void registerFont(const QString &familyname, const QString &stylename,
const QString &foundryname, QFont::Weight weight,
QFont::Style style, QFont::Stretch stretch, bool antialiased,
bool scalable, int pixelSize, bool fixedPitch,
const QSupportedWritingSystems &writingSystems, void *handle);
static void registerFontFamily(const QString &familyName);
static void registerAliasToFontFamily(const QString &familyName, const QString &alias);
};
QT_END_NAMESPACE
#endif // QPLATFORMFONTDATABASE_H
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