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libqtxdg-packaging/xdgiconloader/xdgiconloader_p.h

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/****************************************************************************
**
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef XDGICONLOADER_P_H
#define XDGICONLOADER_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 <xdgiconloader_export.h>
#include <QtGui/QIcon>
#include <QtGui/QIconEngine>
#include <private/qicon_p.h>
#include <private/qiconloader_p.h>
#include <QtCore/QHash>
#include <QtCore/QVector>
//QT_BEGIN_NAMESPACE
class XdgIconLoader;
struct ScalableFollowsColorEntry : public ScalableEntry
{
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE;
QIcon svgSelectedIcon;
};
//class QIconLoaderEngine : public QIconEngine
class XDGICONLOADER_EXPORT XdgIconLoaderEngine : public QIconEngine
{
public:
XdgIconLoaderEngine(const QString& iconName = QString());
~XdgIconLoaderEngine();
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;
private:
QString key() const Q_DECL_OVERRIDE;
bool hasIcon() const;
void ensureLoaded();
void virtual_hook(int id, void *data) Q_DECL_OVERRIDE;
QIconLoaderEngineEntry *entryForSize(const QSize &size, int scale = 1);
XdgIconLoaderEngine(const XdgIconLoaderEngine &other);
QThemeIconInfo m_info;
QString m_iconName;
uint m_key;
friend class XdgIconLoader;
};
class QIconCacheGtkReader;
// Note: We can't simply reuse the QIconTheme from Qt > 5.7 because
// the QIconTheme constructor symbol isn't exported.
class XdgIconTheme
{
public:
XdgIconTheme(const QString &name);
XdgIconTheme() = default;
QStringList parents() { return m_parents; }
QVector <QIconDirInfo> keyList() { return m_keyList; }
QStringList contentDirs() { return m_contentDirs; }
bool isValid() const { return m_valid; }
bool followsColorScheme() const { return m_followsColorScheme; }
private:
QStringList m_contentDirs;
QVector <QIconDirInfo> m_keyList;
QStringList m_parents;
bool m_valid = false;
bool m_followsColorScheme = false;
public:
QVector<QSharedPointer<QIconCacheGtkReader>> m_gtkCaches;
};
class XDGICONLOADER_EXPORT XdgIconLoader
{
public:
QThemeIconInfo loadIcon(const QString &iconName) const;
/* TODO: deprecate & remove all QIconLoader wrappers */
inline uint themeKey() const { return QIconLoader::instance()->themeKey(); }
inline QString themeName() const { return QIconLoader::instance()->themeName(); }
inline void setThemeName(const QString &themeName) { QIconLoader::instance()->setThemeName(themeName); }
inline void setThemeSearchPath(const QStringList &searchPaths) { QIconLoader::instance()->setThemeSearchPath(searchPaths); }
inline QIconDirInfo dirInfo(int dirindex) { return QIconLoader::instance()->dirInfo(dirindex); }
inline QStringList themeSearchPaths() const { return QIconLoader::instance()->themeSearchPaths(); }
inline void updateSystemTheme() { QIconLoader::instance()->updateSystemTheme(); }
inline void invalidateKey() { QIconLoader::instance()->invalidateKey(); }
inline void ensureInitialized() { QIconLoader::instance()->ensureInitialized(); }
inline bool hasUserTheme() const { return QIconLoader::instance()->hasUserTheme(); }
/*!
* Flag if the "FollowsColorScheme" hint (the KDE extension to XDG
* themes) should be honored.
*/
inline bool followColorScheme() const { return m_followColorScheme; }
void setFollowColorScheme(bool enable);
XdgIconTheme theme() { return themeList.value(QIconLoader::instance()->themeName()); }
static XdgIconLoader *instance();
private:
QThemeIconInfo findIconHelper(const QString &themeName,
const QString &iconName,
QStringList &visited,
bool dashFallback = false) const;
QThemeIconInfo unthemedFallback(const QString &iconName, const QStringList &searchPaths) const;
mutable QHash <QString, XdgIconTheme> themeList;
bool m_followColorScheme = true;
};
#endif // QT_NO_ICON
#endif // XDGICONLOADER_P_H