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Diffstat (limited to 'src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h')
-rw-r--r-- | src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h new file mode 100644 index 0000000000..b7ebfc033f --- /dev/null +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h @@ -0,0 +1,162 @@ +/**************************************************************************** +** +** Copyright (C) 2016 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 QWINDOWSFONTDATABASE_H +#define QWINDOWSFONTDATABASE_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; +#endif + +QT_BEGIN_NAMESPACE + +Q_DECLARE_LOGGING_CATEGORY(lcQpaFonts) + +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: + enum FontOptions { + // Relevant bits from QWindowsIntegration::Options + DontUseDirectWriteFonts = 0x40, + DontUseColorFonts = 0x80 + }; + + QWindowsFontDatabase(); + ~QWindowsFontDatabase(); + + void populateFontDatabase() Q_DECL_OVERRIDE; + void populateFamily(const QString &familyName) 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, + int dpi, + 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); + + static int defaultVerticalDPI(); + + static void setFontOptions(unsigned options); + static unsigned fontOptions(); + + static QString readRegistryString(HKEY parentHandle, const wchar_t *keyPath, const wchar_t *keyName); + +private: + void populateFamily(const QString &familyName, bool registerAlias); + void removeApplicationFonts(); + + struct WinApplicationFont { + HANDLE handle; + QString fileName; + }; + + QList<WinApplicationFont> m_applicationFonts; + + struct UniqueFontData { + HANDLE handle; + QAtomicInt refCount; + }; + + QMap<QString, UniqueFontData> m_uniqueFontData; + + static unsigned m_fontOptions; +}; + +#ifndef QT_NO_DEBUG_STREAM +QDebug operator<<(QDebug, const QFontDef &def); +#endif + +QT_END_NAMESPACE + +#endif // QWINDOWSFONTDATABASE_H |