89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2012 Filip Wieladek <wattos@gmail.com>
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SPDX-FileCopyrightText: 2016 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_TOUCHPOINTS_H
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#define KWIN_TOUCHPOINTS_H
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#include <kwineffects.h>
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namespace KWin
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{
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class TouchPointsEffect
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: public Effect
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{
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Q_OBJECT
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Q_PROPERTY(qreal lineWidth READ lineWidth)
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Q_PROPERTY(int ringLife READ ringLife)
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Q_PROPERTY(int ringSize READ ringSize)
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Q_PROPERTY(int ringCount READ ringCount)
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public:
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TouchPointsEffect();
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~TouchPointsEffect() override;
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void prePaintScreen(ScreenPrePaintData& data, int time) override;
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void paintScreen(int mask, const QRegion ®ion, ScreenPaintData& data) override;
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void postPaintScreen() override;
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bool isActive() const override;
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bool touchDown(qint32 id, const QPointF &pos, quint32 time) override;
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bool touchMotion(qint32 id, const QPointF &pos, quint32 time) override;
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bool touchUp(qint32 id, quint32 time) override;
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// for properties
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qreal lineWidth() const {
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return m_lineWidth;
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}
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int ringLife() const {
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return m_ringLife;
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}
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int ringSize() const {
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return m_ringMaxSize;
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}
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int ringCount() const {
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return m_ringCount;
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}
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private:
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inline void drawCircle(const QColor& color, float cx, float cy, float r);
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inline void paintScreenSetup(int mask, QRegion region, ScreenPaintData& data);
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inline void paintScreenFinish(int mask, QRegion region, ScreenPaintData& data);
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void repaint();
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float computeAlpha(int time, int ring);
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float computeRadius(int time, bool press, int ring);
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void drawCircleGl(const QColor& color, float cx, float cy, float r);
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void drawCircleXr(const QColor& color, float cx, float cy, float r);
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void drawCircleQPainter(const QColor& color, float cx, float cy, float r);
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void paintScreenSetupGl(int mask, QRegion region, ScreenPaintData& data);
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void paintScreenFinishGl(int mask, QRegion region, ScreenPaintData& data);
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Qt::GlobalColor colorForId(quint32 id);
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int m_ringCount = 2;
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float m_lineWidth = 1.0;
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int m_ringLife = 300;
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float m_ringMaxSize = 20.0;
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struct TouchPoint {
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QPointF pos;
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int time = 0;
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bool press;
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QColor color;
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};
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QVector<TouchPoint> m_points;
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QHash<quint32, QPointF> m_latestPositions;
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QHash<quint32, Qt::GlobalColor> m_colors;
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};
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} // namespace
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#endif
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