kwin/abstract_backend.h

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_ABSTRACT_BACKEND_H
#define KWIN_ABSTRACT_BACKEND_H
#include <kwin_export.h>
#include <QImage>
#include <QObject>
namespace KWin
{
class OpenGLBackend;
class QPainterBackend;
class Screens;
namespace Wayland
{
class WaylandCursorTheme;
}
class KWIN_EXPORT AbstractBackend : public QObject
{
Q_OBJECT
public:
virtual ~AbstractBackend();
virtual void installCursorFromServer();
virtual void installCursorImage(Qt::CursorShape shape);
virtual Screens *createScreens(QObject *parent = nullptr);
virtual OpenGLBackend *createOpenGLBackend();
virtual QPainterBackend *createQPainterBackend();
bool usesSoftwareCursor() const {
return m_softWareCursor;
}
QImage softwareCursor() const {
return m_cursor.image;
}
QPoint softwareCursorHotspot() const {
return m_cursor.hotspot;
}
void markCursorAsRendered();
protected:
explicit AbstractBackend(QObject *parent = nullptr);
void setSoftWareCursor(bool set);
private Q_SLOTS:
void installThemeCursor(quint32 id, const QPoint &hotspot);
private:
void triggerCursorRepaint();
bool m_softWareCursor = false;
struct {
QPoint hotspot;
QImage image;
QPoint lastRenderedPosition;
} m_cursor;
Wayland::WaylandCursorTheme *m_cursorTheme = nullptr;
};
}
#endif