edb074cbc2
Following the approaches of other split out functionality Screens is a singleton class created by Workspace. The class takes over the responsibility for: * screenChanged signal delayed by timer * number of screens * geometry of given screen * active screen * config option for active screen follows mouse The class contains a small abstraction layer and has a concrete subclass wrapping around QDesktopWidget, but the idea is to go more low level and interact with XRandR directly to get more detailed information. All over KWin the usage from QDesktopWidget is ported over to the new Screens class. REVIEW: 109839
132 lines
3.2 KiB
C++
132 lines
3.2 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) 2013 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_SCREENS_H
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#define KWIN_SCREENS_H
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// KWin includes
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#include <kwinglobals.h>
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// KDE includes
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#include <KDE/KConfig>
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// Qt includes
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#include <QObject>
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#include <QRect>
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class QDesktopWidget;
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class QTimer;
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namespace KWin
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{
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class Client;
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class Screens : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(int count READ count WRITE setCount NOTIFY countChanged)
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Q_PROPERTY(int current READ current WRITE setCurrent)
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Q_PROPERTY(bool currentFollowsMouse READ isCurrentFollowsMouse WRITE setCurrentFollowsMouse)
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public:
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virtual ~Screens();
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/**
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* @internal
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**/
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void setConfig(KSharedConfig::Ptr config);
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int count() const;
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int current() const;
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void setCurrent(int current);
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/**
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* Called e.g. when a user clicks on a window, set current screen to be the screen
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* where the click occurred
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*/
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void setCurrent(const QPoint &pos);
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/**
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* Check whether a client moved completely out of what's considered the current screen,
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* if yes, set a new active screen.
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*/
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void setCurrent(const Client *c);
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bool isCurrentFollowsMouse() const;
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void setCurrentFollowsMouse(bool follows);
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virtual QRect geometry(int screen) const = 0;
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virtual int number(const QPoint &pos) const = 0;
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public Q_SLOTS:
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void reconfigure();
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Q_SIGNALS:
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void countChanged(int previousCount, int newCount);
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/**
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* Emitted whenever the screens are changed either count or geometry.
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**/
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void changed();
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protected Q_SLOTS:
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void setCount(int count);
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void startChangedTimer();
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private:
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int m_count;
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int m_current;
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bool m_currentFollowsMouse;
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QTimer *m_changedTimer;
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KSharedConfig::Ptr m_config;
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KWIN_SINGLETON(Screens)
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};
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class DesktopWidgetScreens : public Screens
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{
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Q_OBJECT
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public:
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DesktopWidgetScreens(QObject *parent);
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virtual ~DesktopWidgetScreens();
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virtual QRect geometry(int screen) const;
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virtual int number(const QPoint &pos) const;
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private:
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QDesktopWidget *m_desktop;
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};
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inline
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void Screens::setConfig(KSharedConfig::Ptr config)
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{
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m_config = config;
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}
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inline
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int Screens::count() const
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{
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return m_count;
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}
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inline
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bool Screens::isCurrentFollowsMouse() const
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{
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return m_currentFollowsMouse;
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}
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inline
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Screens *screens()
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{
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return Screens::self();
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}
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}
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#endif // KWIN_SCREENS_H
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