kwin/effects/snaphelper/snaphelper.h
Vlad Zagorodniy 47c8405388 [effects/snaphelper] Do massive overhaul
Summary:
This patch fixes some of issues that the Snap Helper effect currently
has:

* If a window is being moved, there are visual artifacts (cause: missing
  addRepaint's);
* It uses addRepaintFull;
* For some reason, if a window goes deleted, it will be kept around as
  long as the Snap Helper effect needs it (visually, it doesn't look
  good).

Among other changes:
* Use variables to store color and width of grid lines;
* Use new connect syntax;
* Port to TimeLine;
* Fix coding style in some places.

Test Plan:
Tried the effect with different rendering backends, no longer see visual
artifacts when moving or resizing windows.

Reviewers: #kwin, romangg

Reviewed By: #kwin, romangg

Subscribers: romangg, abetts, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D15695
2018-11-05 16:59:19 +02:00

66 lines
1.9 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.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_SNAPHELPER_H
#define KWIN_SNAPHELPER_H
#include <kwineffects.h>
namespace KWin
{
class SnapHelperEffect : public Effect
{
Q_OBJECT
public:
SnapHelperEffect();
~SnapHelperEffect() override;
void reconfigure(ReconfigureFlags flags) override;
void prePaintScreen(ScreenPrePaintData &data, int time) override;
void paintScreen(int mask, QRegion region, ScreenPaintData &data) override;
void postPaintScreen() override;
bool isActive() const override;
private Q_SLOTS:
void slotWindowClosed(EffectWindow *w);
void slotWindowStartUserMovedResized(EffectWindow *w);
void slotWindowFinishUserMovedResized(EffectWindow *w);
void slotWindowGeometryShapeChanged(EffectWindow *w, const QRect &old);
private:
QRect m_geometry;
EffectWindow *m_window = nullptr;
struct Animation {
bool active = false;
TimeLine timeLine;
};
Animation m_animation;
};
} // namespace KWin
#endif