95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
#ifndef SLIDER_H
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#define SLIDER_H
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#include <QAbstractSlider>
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#include <QPoint>
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class QPropertyAnimation;
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class Slider;
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class Handle : public QWidget
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{
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Q_OBJECT
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Q_PROPERTY(qreal knobSize WRITE setKnobSize READ knobSize)
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Q_PROPERTY(qreal haloSize WRITE setHaloSize READ haloSize)
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Q_PROPERTY(qreal phase WRITE setPhase READ phase)
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public:
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explicit Handle(Slider *slider);
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~Handle();
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inline QSize sizeHint() const Q_DECL_OVERRIDE { return QSize(30, 30); }
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inline void setRelativePosition(const QPoint &pos) { setPosition(_offset + pos); }
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inline void setPosition(const QPoint &pos) { _position = pos; refreshGeometry(); }
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inline const QPoint &position() const { return _position; }
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inline void setOffset(const QPoint &offset) { _offset = offset; update(); }
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inline const QPoint &offset() const { return _offset; }
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inline void setKnobSize (qreal size) { _knobSize = size; refreshGeometry(); }
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inline qreal knobSize() const { return _knobSize; }
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inline void setHaloSize (qreal size) { _haloSize = size; update(); }
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inline qreal haloSize() const { return _haloSize; }
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inline void setPhase (qreal phase) { _phase = phase; update(); }
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inline qreal phase() const { return _phase; }
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void refreshGeometry();
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protected:
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void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
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private:
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Slider *const _slider;
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QPoint _position;
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QPoint _offset;
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qreal _knobSize;
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qreal _haloSize;
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qreal _phase;
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};
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class Slider : public QAbstractSlider
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{
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Q_OBJECT
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public:
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explicit Slider(QWidget *parent = 0);
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~Slider();
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inline void setOrientation(Qt::Orientation orientation) { _orientation = orientation; }
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inline Qt::Orientation orientation() const { return _orientation; }
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protected:
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void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
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void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
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void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
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void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
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void enterEvent(QEvent *event) Q_DECL_OVERRIDE;
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void leaveEvent(QEvent *event) Q_DECL_OVERRIDE;
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void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
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bool overTrack(const QPoint &pos) const;
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bool overHandle(const QPoint &pos) const;
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void updateValue();
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void updateHoverState(const QPoint &pos);
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void beginHover();
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void endHover();
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private:
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QPropertyAnimation *const _knobAnimation;
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QPropertyAnimation *const _haloAnimation;
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QPropertyAnimation *const _phaseAnimation;
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Handle *const _handle;
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bool _drag;
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bool _hover;
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Qt::Orientation _orientation;
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};
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#endif // SLIDER_H
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