b7f49244e0
Summary: The new effect is based on the mouse click effect and uses the same rendering code (this could be improved by merging them better). Unlike mouse click there is no keyboard shortcut needed to activate: as soon as the effect is loaded all touch points are visualized. The visualization creates an animated circle for each touch down position, motion and up position. The ids are tracked and each touch id gets the same color. The first ten different touch ids get a different color. As touch ids are stable the first finger will always have the same color. Reviewers: #kwin, #plasma_on_wayland, bshah Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D2464
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/********************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2012 Filip Wieladek <wattos@gmail.com>
|
|
Copyright (C) 2016 Martin Gräßlin <mgraesslin@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_TOUCHPOINTS_H
|
|
#define KWIN_TOUCHPOINTS_H
|
|
|
|
#include <kwineffects.h>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
class TouchPointsEffect
|
|
: public Effect
|
|
{
|
|
Q_OBJECT
|
|
Q_PROPERTY(qreal lineWidth READ lineWidth)
|
|
Q_PROPERTY(int ringLife READ ringLife)
|
|
Q_PROPERTY(int ringSize READ ringSize)
|
|
Q_PROPERTY(int ringCount READ ringCount)
|
|
public:
|
|
TouchPointsEffect();
|
|
~TouchPointsEffect();
|
|
void prePaintScreen(ScreenPrePaintData& data, int time) override;
|
|
void paintScreen(int mask, QRegion region, ScreenPaintData& data) override;
|
|
void postPaintScreen() override;
|
|
bool isActive() const override;
|
|
bool touchDown(quint32 id, const QPointF &pos, quint32 time) override;
|
|
bool touchMotion(quint32 id, const QPointF &pos, quint32 time) override;
|
|
bool touchUp(quint32 id, quint32 time) override;
|
|
|
|
// for properties
|
|
qreal lineWidth() const {
|
|
return m_lineWidth;
|
|
}
|
|
int ringLife() const {
|
|
return m_ringLife;
|
|
}
|
|
int ringSize() const {
|
|
return m_ringMaxSize;
|
|
}
|
|
int ringCount() const {
|
|
return m_ringCount;
|
|
}
|
|
|
|
private:
|
|
inline void drawCircle(const QColor& color, float cx, float cy, float r);
|
|
inline void paintScreenSetup(int mask, QRegion region, ScreenPaintData& data);
|
|
inline void paintScreenFinish(int mask, QRegion region, ScreenPaintData& data);
|
|
|
|
void repaint();
|
|
|
|
float computeAlpha(int time, int ring);
|
|
float computeRadius(int time, bool press, int ring);
|
|
void drawCircleGl(const QColor& color, float cx, float cy, float r);
|
|
void drawCircleXr(const QColor& color, float cx, float cy, float r);
|
|
void drawCircleQPainter(const QColor& color, float cx, float cy, float r);
|
|
void paintScreenSetupGl(int mask, QRegion region, ScreenPaintData& data);
|
|
void paintScreenFinishGl(int mask, QRegion region, ScreenPaintData& data);
|
|
|
|
Qt::GlobalColor colorForId(quint32 id);
|
|
|
|
int m_ringCount = 2;
|
|
float m_lineWidth = 1.0;
|
|
int m_ringLife = 300;
|
|
float m_ringMaxSize = 20.0;
|
|
|
|
struct TouchPoint {
|
|
QPointF pos;
|
|
int time = 0;
|
|
bool press;
|
|
QColor color;
|
|
};
|
|
QVector<TouchPoint> m_points;
|
|
QHash<quint32, QPointF> m_latestPositions;
|
|
QHash<quint32, Qt::GlobalColor> m_colors;
|
|
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif
|