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Diffstat (limited to 'src/gui/image/qiconloader_p.h')
| -rw-r--r-- | src/gui/image/qiconloader_p.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/gui/image/qiconloader_p.h b/src/gui/image/qiconloader_p.h new file mode 100644 index 0000000..707107c --- /dev/null +++ b/src/gui/image/qiconloader_p.h @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDESKTOPICON_P_H +#define QDESKTOPICON_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 <QtGui/QIcon> +#include <QtGui/QIconEngine> +#include <QtGui/QPixmapCache> +#include <private/qicon_p.h> +#include <private/qfactoryloader_p.h> + +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; +}; + +class QIconLoaderEngineEntry + { +public: + 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); + QIcon svgIcon; +}; + +struct PixmapEntry : public QIconLoaderEngineEntry +{ + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); + QPixmap basePixmap; +}; + +typedef QList<QIconLoaderEngineEntry*> QThemeIconEntries; + +class QIconLoaderEngine : public QIconEngineV2 +{ +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); + QIconEngineV2 *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); + 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; } + QList <QIconDirInfo> keyList() { return m_keyList; } + QString contentDir() { return m_contentDir; } + bool isValid() { return m_valid; } + +private: + QString m_contentDir; + QList <QIconDirInfo> m_keyList; + QStringList m_parents; + bool m_valid; +}; + +class QIconLoader : public QObject +{ +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++; } + +private: + QThemeIconEntries findIconHelper(const QString &themeName, + const QString &iconName, + QStringList &visited) const; + uint m_themeKey; + bool m_supportsSvg; + + mutable QString m_userTheme; + mutable QString m_systemTheme; + mutable QStringList m_iconDirs; + mutable QHash <QString, QIconTheme> themeList; +}; + +QT_END_NAMESPACE + +#endif // QDESKTOPICON_P_H |