kwin/effects/highlightwindow/highlightwindow.h
Martin Gräßlin 2545162f87 Support highlighting windows through EffectsHandlerImpl
Summary:
So far TabBox used highlight windows by passing window ids around through
an X property. This doesn't work on Wayland where we don't have window
ids for our TabBox and the Wayland windows.

This change introduces a new Effect::Feature for HighlightWindows which
the HighlightWindowsEffect provides. The EffectsHandlerImpl has a new
method to highlightWindows which it delegates to that effect if it is
loaded by invoking a new performFeature method.

The TabBoxHandler now passes the highlighting to the effects system
instead of updating the x11 property. Thus this works on Wayland and
at the same time improves the X11 side by no longer having to go through
the property protocol.

Test Plan: Verified that Alt+Tab highlights the windows on Wayland correctly.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2630
2016-09-13 08:36:12 +02:00

87 lines
2.8 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
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_HIGHLIGHTWINDOW_H
#define KWIN_HIGHLIGHTWINDOW_H
#include <kwineffects.h>
namespace KWin
{
class HighlightWindowEffect
: public Effect
{
Q_OBJECT
public:
HighlightWindowEffect();
virtual ~HighlightWindowEffect();
virtual void prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time);
virtual void paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data);
virtual bool isActive() const;
int requestedEffectChainPosition() const override {
return 70;
}
bool provides(Feature feature) override;
bool perform(Feature feature, const QVariantList &arguments) override;
public Q_SLOTS:
void slotWindowAdded(KWin::EffectWindow* w);
void slotWindowClosed(KWin::EffectWindow *w);
void slotWindowDeleted(KWin::EffectWindow *w);
void slotPropertyNotify(KWin::EffectWindow* w, long atom, EffectWindow *addedWindow = NULL);
private:
void prepareHighlighting();
void finishHighlighting();
void highlightWindows(const QVector<KWin::EffectWindow *> &windows);
bool m_finishing;
float m_fadeDuration;
QHash<EffectWindow*, float> m_windowOpacity;
long m_atom;
QList<EffectWindow*> m_highlightedWindows;
EffectWindow* m_monitorWindow;
QList<WId> m_highlightedIds;
// Offscreen position cache
/*QRect m_thumbArea; // Thumbnail area
QPoint m_arrowTip; // Position of the arrow's tip
QPoint m_arrowA; // Arrow vertex position at the base (First)
QPoint m_arrowB; // Arrow vertex position at the base (Second)
// Helper functions
inline double aspectRatio( EffectWindow *w )
{ return w->width() / double( w->height() ); }
inline int widthForHeight( EffectWindow *w, int height )
{ return int(( height / double( w->height() )) * w->width() ); }
inline int heightForWidth( EffectWindow *w, int width )
{ return int(( width / double( w->width() )) * w->height() ); }*/
};
} // namespace
#endif