kwin/effects/slideback/slideback.h
Vlad Zagorodniy e9ab34854d [effects] Ignore previous state of WindowForceBlurRole
Summary:
Currently, effects like Maximize, Slide Back have problems with setting
WindowForceBlurRole. They store previous state of WindowForceBlurRole.
This is wrong. Instead they should either ignore previous state of
WindowForceBlur or refcount forced role.

There's no need for refcounting right now. For example, if several effects
force blur or background contrast, they are most likely in a conflict.
Please notice that the Desktop Grid effect uses the Present Windows
effect only to calculate transformations.

Some other problems with the code that sets WindowForceBlurRole:
* Maximize effect stores previous state of WindowForceBlurRole only
  for one window. It ignores the fact that there could be several
  active maximize animations;
* Desktop Grid/Present Windows/Slide back don't clean after themselves.
  So, after using those effects for good amount of times, memory usage
  will bump.

Test Plan:
* Enabled blur for Konsole
* Maximized Konsole
* Activated Present Windows
* Activated Desktop Grid
* Raised another window(to trigger Slide Back)

Reviewers: #kwin, fredrik

Reviewed By: fredrik

Subscribers: fredrik, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D13479
2018-06-19 15:23:41 +03:00

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2.5 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Michael Zanetti <michael_zanetti@gmx.net>
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_SLIDEBACK_H
#define KWIN_SLIDEBACK_H
// Include with base class for effects.
#include <kwineffects.h>
namespace KWin
{
class SlideBackEffect
: public Effect
{
Q_OBJECT
public:
SlideBackEffect();
virtual void prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time);
virtual void paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data);
virtual void postPaintWindow(EffectWindow* w);
virtual void prePaintScreen(ScreenPrePaintData &data, int time);
virtual void postPaintScreen();
virtual bool isActive() const;
int requestedEffectChainPosition() const override {
return 50;
}
public Q_SLOTS:
void slotWindowAdded(KWin::EffectWindow *w);
void slotWindowDeleted(KWin::EffectWindow *w);
void slotWindowUnminimized(KWin::EffectWindow *w);
void slotStackingOrderChanged();
void slotTabBoxAdded();
void slotTabBoxClosed();
private:
WindowMotionManager motionManager;
EffectWindowList usableOldStackingOrder;
EffectWindowList oldStackingOrder;
EffectWindowList coveringWindows;
EffectWindowList elevatedList;
EffectWindow *m_justMapped, *m_upmostWindow;
QHash<EffectWindow *, QRect> destinationList;
int m_tabboxActive;
QList <QRegion> clippedRegions;
QRect getSlideDestination(const QRect &windowUnderGeometry, const QRect &windowOverGeometry);
bool isWindowUsable(EffectWindow *w);
bool intersects(EffectWindow *windowUnder, const QRect &windowOverGeometry);
EffectWindowList usableWindows(const EffectWindowList &allWindows);
QRect getModalGroupGeometry(EffectWindow *w);
void windowRaised(EffectWindow *w);
};
} // namespace
#endif