kwin/plugins/platforms/x11/standalone/x11_platform.h
Martin Gräßlin e90e596864 Add way to hide/show cursor in Platform
Summary:
Some platforms support to hide and show the cursor. This will be needed
by e.g. the zoom effect which currently only provides this functionality
on X11.

This change introduces a new method in the Platform to hide and show the
cursor. The methods need to be called balanced and the implementation
takes care of only showing again if all hide got matched by a show.

The actual hiding and showing is performed in the platform plugins. So
far the DRM and X11/Standalone platforms implement the required
functionality, though other platforms probably could implement as well.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D3119
2016-10-31 11:46:50 +01:00

78 lines
2.5 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 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_X11STANDALONE_PLATFORM_H
#define KWIN_X11STANDALONE_PLATFORM_H
#include "platform.h"
#include <kwin_export.h>
#include <QObject>
namespace KWin
{
class XInputIntegration;
class KWIN_EXPORT X11StandalonePlatform : public Platform
{
Q_OBJECT
Q_INTERFACES(KWin::Platform)
Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "x11.json")
public:
X11StandalonePlatform(QObject *parent = nullptr);
virtual ~X11StandalonePlatform();
void init() override;
Screens *createScreens(QObject *parent = nullptr) override;
OpenGLBackend *createOpenGLBackend() override;
Edge *createScreenEdge(ScreenEdges *parent) override;
void createPlatformCursor(QObject *parent = nullptr) override;
bool requiresCompositing() const override;
bool compositingPossible() const override;
QString compositingNotPossibleReason() const override;
bool openGLCompositingIsBroken() const override;
void createOpenGLSafePoint(OpenGLSafePoint safePoint) override;
PlatformCursorImage cursorImage() const override;
protected:
void doHideCursor() override;
void doShowCursor() override;
private:
/**
* Tests whether GLX is supported and returns @c true
* in case KWin is compiled with OpenGL support and GLX
* is available.
*
* If KWin is compiled with OpenGL ES or without OpenGL at
* all, @c false is returned.
* @returns @c true if GLX is available, @c false otherwise and if not build with OpenGL support.
**/
static bool hasGlx();
XInputIntegration *m_xinputIntegration = nullptr;
QThread *m_openGLFreezeProtectionThread = nullptr;
QTimer *m_openGLFreezeProtection = nullptr;
};
}
#endif