kwin/effects/showpaint/showpaint.h
Vlad Zagorodniy 1de9648a89 [effects/showpaint] Use a shortcut to toggle the effect
Summary:
The Show Paint effect is useful when debugging repaint regions issued by
effects. The only headache with it is necessity to enable/disable it.
Consider the following workflow:

* Do some change to an effect;
* Compile KWin (or the effect);
* Go to System Settings and enable the Show Paint effect;
* Test effect, check repaint regions, etc;
* Disable the Show Paint effect;
* Go to the step 1.

This workflow is really exhausting. Also, when testing repaints in a
nested compositor, things become quite messy.

Because purpose of this effect is to debug repaints (and because this
effect is not meant for daily usage), I think that's fine to change
how it's activated.

This patch improves the workflow by changing the way how this effect
gets activated. Instead of enabling/disabling it, one can just use a shortcut
to activate or deactivate the effect.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: broulik, davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D15703
2018-09-28 20:12:22 +03:00

56 lines
1.5 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2007 Lubos Lunak <l.lunak@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_SHOWPAINT_H
#define KWIN_SHOWPAINT_H
#include <kwineffects.h>
namespace KWin
{
class ShowPaintEffect : public Effect
{
Q_OBJECT
public:
ShowPaintEffect();
void paintScreen(int mask, QRegion region, ScreenPaintData &data) override;
void paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data) override;
bool isActive() const override;
private Q_SLOTS:
void toggle();
private:
void paintGL(const QMatrix4x4 &projection);
void paintXrender();
void paintQPainter();
bool m_active = false;
QRegion m_painted; // what's painted in one pass
int m_colorIndex = 0;
};
} // namespace KWin
#endif