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Diffstat (limited to 'src/gui/text/windows/qwindowsfontdatabase_p.h')
| -rw-r--r-- | src/gui/text/windows/qwindowsfontdatabase_p.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/gui/text/windows/qwindowsfontdatabase_p.h b/src/gui/text/windows/qwindowsfontdatabase_p.h new file mode 100644 index 0000000000..b870d6c4a0 --- /dev/null +++ b/src/gui/text/windows/qwindowsfontdatabase_p.h @@ -0,0 +1,180 @@ +/**************************************************************************** +** +** 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 "qwindowsfontdatabasebase_p.h" + +#include <qpa/qplatformfontdatabase.h> +#include <QtCore/QSharedPointer> +#include <QtCore/QLoggingCategory> +#include <QtCore/qhashfunctions.h> +#include <QtCore/qt_windows.h> + +QT_BEGIN_NAMESPACE + +class QDebug; + +class Q_GUI_EXPORT QWindowsFontDatabase : public QWindowsFontDatabaseBase +{ + Q_DISABLE_COPY_MOVE(QWindowsFontDatabase) +public: + enum FontOptions { + // Relevant bits from QWindowsIntegration::Options + DontUseDirectWriteFonts = 0x40, + DontUseColorFonts = 0x80 + }; + + QWindowsFontDatabase(); + ~QWindowsFontDatabase() override; + + void ensureFamilyPopulated(const QString &familyName); + + void populateFontDatabase() override; + void populateFamily(const QString &familyName) 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, QChar::Script script) const override; + QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName, QFontDatabasePrivate::ApplicationFont *applicationFont = nullptr) override; + void releaseHandle(void *handle) override; + QString fontDir() const override; + + QFont defaultFont() const override { return systemDefaultFont(); } + bool fontsAlwaysScalable() const override; + void derefUniqueFont(const QString &uniqueFont); + void refUniqueFont(const QString &uniqueFont); + bool isPrivateFontFamily(const QString &family) const override; + + static QFontEngine *createEngine(const QFontDef &request, const QString &faceName, + int dpi, + const QSharedPointer<QWindowsFontEngineData> &data); + + static qreal fontSmoothingGamma(); + + static void setFontOptions(unsigned options); + static unsigned fontOptions(); + +#ifndef QT_NO_DEBUG_STREAM + static void debugFormat(QDebug &d, const LOGFONT &lf); +#endif // !QT_NO_DEBUG_STREAM + +private: + void removeApplicationFonts(); + void addDefaultEUDCFont(); + + 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; + QStringList m_eudcFonts; +}; + +#ifndef QT_NO_DEBUG_STREAM +QDebug operator<<(QDebug, const QFontDef &def); +#endif + +inline quint16 qt_getUShort(const unsigned char *p) +{ + quint16 val; + val = *p++ << 8; + val |= *p; + + return val; +} + +struct QFontNames +{ + QString name; // e.g. "DejaVu Sans Condensed" + QString style; // e.g. "Italic" + QString preferredName; // e.g. "DejaVu Sans" + QString preferredStyle; // e.g. "Condensed Italic" +}; + +struct QFontValues +{ + quint16 weight = 0; + bool isItalic = false; + bool isOverstruck = false; + bool isUnderlined = false; +}; + +bool qt_localizedName(const QString &name); +QString qt_getEnglishName(const QString &familyName, bool includeStyle = false); +QFontNames qt_getCanonicalFontNames(const LOGFONT &lf); + +struct FontAndStyle { + QString font; + QString style; + + friend inline bool operator==(const FontAndStyle &lhs, const FontAndStyle &rhs) noexcept + { return lhs.font == rhs.font && lhs.style == rhs.style; } + friend inline bool operator!=(const FontAndStyle &lhs, const FontAndStyle &rhs) noexcept + { return !operator==(lhs, rhs); } +}; +inline size_t qHash(const FontAndStyle &key, size_t seed) noexcept +{ + return qHashMulti(seed, key.font, key.style); +} + +QT_END_NAMESPACE + +#endif // QWINDOWSFONTDATABASE_H |