| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
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| ** $QT_BEGIN_LICENSE:LGPL21$ |
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| ****************************************************************************/ |
| |
| #ifndef QICONLOADER_P_H |
| #define QICONLOADER_P_H |
| |
| #include <QtCore/qglobal.h> |
| |
| #ifndef QT_NO_ICON |
| // |
| // 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 <private/qicon_p.h> |
| #include <private/qfactoryloader_p.h> |
| #include <QtCore/QHash> |
| #include <QtCore/QVector> |
| #include <QtCore/QTypeInfo> |
| |
| QT_BEGIN_NAMESPACE |
| |
| 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; |
| }; |
| Q_DECLARE_TYPEINFO(QIconDirInfo, Q_MOVABLE_TYPE); |
| |
| 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; |
| |
| struct QThemeIconInfo |
| { |
| QThemeIconEntries entries; |
| QString iconName; |
| }; |
| |
| class QIconLoaderEngine : public QIconEngine |
| { |
| public: |
| QIconLoaderEngine(const QString& iconName = QString()); |
| ~QIconLoaderEngine(); |
| |
| 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); |
| QIconLoaderEngine(const QIconLoaderEngine &other); |
| QThemeIconInfo m_info; |
| 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; } |
| QStringList contentDirs() { return m_contentDirs; } |
| bool isValid() { return m_valid; } |
| |
| private: |
| QStringList m_contentDirs; |
| QVector<QIconDirInfo> m_keyList; |
| QStringList m_parents; |
| bool m_valid; |
| }; |
| |
| class Q_GUI_EXPORT QIconLoader |
| { |
| public: |
| QIconLoader(); |
| QThemeIconInfo 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: |
| QThemeIconInfo 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; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_ICON |
| |
| #endif // QICONLOADER_P_H |