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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QWINDOWSDIRECTWRITEFONTDATABASE_P_H
#define QWINDOWSDIRECTWRITEFONTDATABASE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qtguiglobal.h>
#include <QtGui/private/qtgui-config_p.h>
QT_REQUIRE_CONFIG(directwrite3);
#include "qwindowsfontdatabase_p.h"
#include <QtCore/qloggingcategory.h>
#include <dwrite_3.h>
QT_BEGIN_NAMESPACE
class Q_GUI_EXPORT QWindowsDirectWriteFontDatabase : public QWindowsFontDatabase
{
Q_DISABLE_COPY_MOVE(QWindowsDirectWriteFontDatabase)
public:
QWindowsDirectWriteFontDatabase();
~QWindowsDirectWriteFontDatabase() override;
void populateFontDatabase() override;
void populateFamily(const QString &familyName) override;
bool populateFamilyAliases(const QString &missingFamily) override;
QFontEngine *fontEngine(const QFontDef &fontDef, void *handle) override;
QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override;
QStringList fallbacksForFamily(const QString &family,
QFont::Style style,
QFont::StyleHint styleHint,
QFontDatabasePrivate::ExtendedScript script) const override;
QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName, QFontDatabasePrivate::ApplicationFont *font = nullptr) override;
bool isPrivateFontFamily(const QString &family) const override;
bool supportsVariableApplicationFonts() const override;
void registerBitmapFont(const QString &bitmapFont)
{
m_populatedBitmapFonts.insert(bitmapFont);
}
bool hasPopulatedFont(const QString &fontFamily) const
{
return m_populatedFonts.contains(fontFamily);
}
static QFont::Stretch fromDirectWriteStretch(DWRITE_FONT_STRETCH stretch);
static QFont::Weight fromDirectWriteWeight(DWRITE_FONT_WEIGHT weight);
static QFont::Style fromDirectWriteStyle(DWRITE_FONT_STYLE style);
protected:
void invalidate() override;
private:
friend class QWindowsFontEngineDirectWrite;
static QString localeString(IDWriteLocalizedStrings *names, wchar_t localeName[]);
template<typename T>
static void collectAdditionalNames(T *fontFace,
wchar_t *defaultLocale,
wchar_t *englishLocale,
std::function<void(const QString &, const QString &)> registerFamily);
QSupportedWritingSystems supportedWritingSystems(IDWriteFontFace *face) const;
QHash<QString, IDWriteFontFamily *> m_populatedFonts;
QSet<QString> m_populatedBitmapFonts;
};
QT_END_NAMESPACE
#endif // QWINDOWSDIRECTWRITEFONTDATABASE_P_H