diff options
Diffstat (limited to 'src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase_p.h')
-rw-r--r-- | src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase_p.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase_p.h b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase_p.h new file mode 100644 index 0000000000..004889ab86 --- /dev/null +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase_p.h @@ -0,0 +1,131 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QWINDOWSFONTDATABASEBASE_P_H +#define QWINDOWSFONTDATABASEBASE_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 <qpa/qplatformfontdatabase.h> +#include <QtCore/QSharedPointer> +#include <QtCore/QLoggingCategory> +#include <QtCore/qt_windows.h> + +#if !defined(QT_NO_DIRECTWRITE) + struct IDWriteFactory; + struct IDWriteGdiInterop; + struct IDWriteFontFace; +#endif + +QT_BEGIN_NAMESPACE + +Q_DECLARE_LOGGING_CATEGORY(lcQpaFonts); + +class QWindowsFontEngineData +{ + Q_DISABLE_COPY_MOVE(QWindowsFontEngineData) +public: + QWindowsFontEngineData(); + ~QWindowsFontEngineData(); + + uint pow_gamma[256]; + + bool clearTypeEnabled = false; + qreal fontSmoothingGamma; + HDC hdc = 0; +#if !defined(QT_NO_DIRECTWRITE) + IDWriteFactory *directWriteFactory = nullptr; + IDWriteGdiInterop *directWriteGdiInterop = nullptr; +#endif +}; + +class QWindowsFontDatabaseBase : public QPlatformFontDatabase +{ +public: + QWindowsFontDatabaseBase(); + ~QWindowsFontDatabaseBase() override; + + QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override; + + static int defaultVerticalDPI(); + static QSharedPointer<QWindowsFontEngineData> data(); + static void createDirectWriteFactory(IDWriteFactory **factory); + static QFont systemDefaultFont(); + static HFONT systemFont(); + static LOGFONT fontDefToLOGFONT(const QFontDef &fontDef, const QString &faceName); + static QFont LOGFONT_to_QFont(const LOGFONT& lf, int verticalDPI = 0); + + class FontTable{}; + class EmbeddedFont + { + public: + EmbeddedFont(const QByteArray &fontData) : m_fontData(fontData) {} + + QString changeFamilyName(const QString &newFamilyName); + QByteArray data() const { return m_fontData; } + void updateFromOS2Table(QFontEngine *fontEngine); + FontTable *tableDirectoryEntry(const QByteArray &tagName); + QString familyName(FontTable *nameTableDirectory = nullptr); + + private: + QByteArray m_fontData; + }; + +protected: + +#if !defined(QT_NO_DIRECTWRITE) + IDWriteFontFace *createDirectWriteFace(const QByteArray &fontData) const; +#endif + +private: + static bool init(QSharedPointer<QWindowsFontEngineData> data); +}; + +QT_END_NAMESPACE + +#endif // QWINDOWSFONTDATABASEBASE_P_H |