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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module 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 QICONLOADER_P_H
#define QICONLOADER_P_H
#include <QtGui/private/qtguiglobal_p.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),
scale(1),
type(Threshold) {}
QString path;
short size;
short maxSize;
short minSize;
short threshold;
short scale;
Type type;
};
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;
};
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) Q_DECL_OVERRIDE;
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE;
QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE;
QIconEngine *clone() const Q_DECL_OVERRIDE;
bool read(QDataStream &in) Q_DECL_OVERRIDE;
bool write(QDataStream &out) const Q_DECL_OVERRIDE;
Q_GUI_EXPORT static QIconLoaderEngineEntry *entryForSize(const QThemeIconInfo &info, const QSize &size, int scale = 1);
private:
QString key() const Q_DECL_OVERRIDE;
bool hasIcon() const;
void ensureLoaded();
void virtual_hook(int id, void *data) Q_DECL_OVERRIDE;
QIconLoaderEngine(const QIconLoaderEngine &other);
QThemeIconInfo m_info;
QString m_iconName;
uint m_key;
friend class QIconLoader;
};
class QIconCacheGtkReader;
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;
public:
QVector<QSharedPointer<QIconCacheGtkReader>> m_gtkCaches;
};
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();
bool hasUserTheme() const { return !m_userTheme.isEmpty(); }
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
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