1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
88 lines
2.6 KiB
C++
88 lines
2.6 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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