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Diffstat (limited to 'libraries/iconfix/internal/qiconloader_p.h')
| -rw-r--r-- | libraries/iconfix/internal/qiconloader_p.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/libraries/iconfix/internal/qiconloader_p.h b/libraries/iconfix/internal/qiconloader_p.h new file mode 100644 index 00000000..b71bdd83 --- /dev/null +++ b/libraries/iconfix/internal/qiconloader_p.h @@ -0,0 +1,219 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#pragma once + +#include <QtCore/qglobal.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/QIcon> +#include <QtGui/QIconEngine> +#include <QtGui/QPixmapCache> +#include <QtCore/QHash> +#include <QtCore/QVector> +#include <QtCore/QTypeInfo> + + +namespace QtXdg +{ + +class QIconLoader; + +struct QIconDirInfo +{ + enum Type + { + Fixed, + Scalable, + Threshold + }; + QIconDirInfo(const QString &_path = QString()) + : path(_path), size(0), maxSize(0), minSize(0), threshold(0), type(Threshold) + { + } + QString path; + short size; + short maxSize; + short minSize; + short threshold; + Type type : 4; +}; + +class QIconLoaderEngineEntry +{ +public: + virtual ~QIconLoaderEngineEntry() + { + } + virtual QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) = 0; + QString filename; + QIconDirInfo dir; + static int count; +}; + +struct ScalableEntry : public QIconLoaderEngineEntry +{ + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE; + QIcon svgIcon; +}; + +struct PixmapEntry : public QIconLoaderEngineEntry +{ + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE; + QPixmap basePixmap; +}; + +typedef QList<QIconLoaderEngineEntry *> QThemeIconEntries; + +// class QIconLoaderEngine : public QIconEngine +class QIconLoaderEngineFixed : public QIconEngine +{ +public: + QIconLoaderEngineFixed(const QString &iconName = QString()); + ~QIconLoaderEngineFixed(); + + void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state); + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); + QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); + QIconEngine *clone() const; + bool read(QDataStream &in); + bool write(QDataStream &out) const; + +private: + QString key() const; + bool hasIcon() const; + void ensureLoaded(); + void virtual_hook(int id, void *data); + QIconLoaderEngineEntry *entryForSize(const QSize &size); + QIconLoaderEngineFixed(const QIconLoaderEngineFixed &other); + QThemeIconEntries m_entries; + QString m_iconName; + uint m_key; + + friend class QIconLoader; +}; + +class QIconTheme +{ +public: + QIconTheme(const QString &name); + QIconTheme() : m_valid(false) + { + } + QStringList parents() + { + return m_parents; + } + QVector<QIconDirInfo> keyList() + { + return m_keyList; + } + QString contentDir() + { + return m_contentDir; + } + QStringList contentDirs() + { + return m_contentDirs; + } + bool isValid() + { + return m_valid; + } + +private: + QString m_contentDir; + QStringList m_contentDirs; + QVector<QIconDirInfo> m_keyList; + QStringList m_parents; + bool m_valid; +}; + +class QIconLoader +{ +public: + QIconLoader(); + QThemeIconEntries loadIcon(const QString &iconName) const; + uint themeKey() const + { + return m_themeKey; + } + + QString themeName() const + { + return m_userTheme.isEmpty() ? m_systemTheme : m_userTheme; + } + void setThemeName(const QString &themeName); + QIconTheme theme() + { + return themeList.value(themeName()); + } + void setThemeSearchPath(const QStringList &searchPaths); + QStringList themeSearchPaths() const; + QIconDirInfo dirInfo(int dirindex); + static QIconLoader *instance(); + void updateSystemTheme(); + void invalidateKey() + { + m_themeKey++; + } + void ensureInitialized(); + +private: + QThemeIconEntries findIconHelper(const QString &themeName, const QString &iconName, + QStringList &visited) const; + uint m_themeKey; + bool m_supportsSvg; + bool m_initialized; + + mutable QString m_userTheme; + mutable QString m_systemTheme; + mutable QStringList m_iconDirs; + mutable QHash<QString, QIconTheme> themeList; +}; + +} // QtXdg + +// Note: class template specialization of 'QTypeInfo' must occur at +// global scope +Q_DECLARE_TYPEINFO(QtXdg::QIconDirInfo, Q_MOVABLE_TYPE); |