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88 lines
2.5 KiB
88 lines
2.5 KiB
/* |
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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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