matrixion/include/ui/RippleOverlay.h

#pragma once

#include <QPainterPath>

#include "OverlayWidget.h"

class Ripple;

class RippleOverlay : public OverlayWidget
{
	Q_OBJECT

public:
	explicit RippleOverlay(QWidget *parent = 0);
	~RippleOverlay();

	void addRipple(Ripple *ripple);
	void addRipple(const QPoint &position, qreal radius = 300);

	void removeRipple(Ripple *ripple);

	inline void setClipping(bool enable);
	inline bool hasClipping() const;

	inline void setClipPath(const QPainterPath &path);

protected:
	void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;

private:
	Q_DISABLE_COPY(RippleOverlay)

	void paintRipple(QPainter *painter, Ripple *ripple);

	QList<Ripple *> ripples_;
	QPainterPath clip_path_;
	bool use_clip_;
};

inline void
RippleOverlay::setClipping(bool enable)
{
	use_clip_ = enable;
	update();
}

inline bool
RippleOverlay::hasClipping() const
{
	return use_clip_;
}

inline void
RippleOverlay::setClipPath(const QPainterPath &path)
{
	clip_path_ = path;
	update();
}