38b676d809
Creates two buffers with the size queried through the drm capabilities. The actual cursor image is retrieved using the software cursor functionality from the AbstractBackend and rendered into the shared memory buffer. The the buffer is set as the new cursor image and the rendering buffer for the cursor is swapped. The position is updated whenever the cursor image changes or the mouse position changes.
86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_ABSTRACT_BACKEND_H
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#define KWIN_ABSTRACT_BACKEND_H
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#include <kwin_export.h>
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#include <QImage>
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#include <QObject>
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namespace KWin
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{
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class OpenGLBackend;
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class QPainterBackend;
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class Screens;
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namespace Wayland
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{
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class WaylandCursorTheme;
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}
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class KWIN_EXPORT AbstractBackend : public QObject
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{
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Q_OBJECT
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public:
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virtual ~AbstractBackend();
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virtual void installCursorFromServer();
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virtual void installCursorImage(Qt::CursorShape shape);
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virtual Screens *createScreens(QObject *parent = nullptr);
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virtual OpenGLBackend *createOpenGLBackend();
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virtual QPainterBackend *createQPainterBackend();
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bool usesSoftwareCursor() const {
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return m_softWareCursor;
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}
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QImage softwareCursor() const {
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return m_cursor.image;
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}
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QPoint softwareCursorHotspot() const {
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return m_cursor.hotspot;
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}
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void markCursorAsRendered();
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Q_SIGNALS:
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void cursorChanged();
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protected:
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explicit AbstractBackend(QObject *parent = nullptr);
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void setSoftWareCursor(bool set);
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void updateCursorFromServer();
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void updateCursorImage(Qt::CursorShape shape);
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private Q_SLOTS:
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void installThemeCursor(quint32 id, const QPoint &hotspot);
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private:
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void triggerCursorRepaint();
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bool m_softWareCursor = false;
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struct {
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QPoint hotspot;
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QImage image;
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QPoint lastRenderedPosition;
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} m_cursor;
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Wayland::WaylandCursorTheme *m_cursorTheme = nullptr;
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};
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}
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#endif
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