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+/****************************************************************************
+**
+** 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