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#ifndef MASKEDMOUSEAREA_H
#define MASKEDMOUSEAREA_H

#include <QImage>
#include <QQuickItem>

class MaskedMouseArea : public QQuickItem {
Q_OBJECT
QML_ELEMENT
  Q_PROPERTY(bool pressed READ isPressed NOTIFY pressedChanged)
  Q_PROPERTY(bool containsMouse READ containsMouse NOTIFY containsMouseChanged)
  Q_PROPERTY(QUrl maskSource READ maskSource WRITE setMaskSource NOTIFY
                 maskSourceChanged)
  Q_PROPERTY(qreal alphaThreshold READ alphaThreshold WRITE setAlphaThreshold
                 NOTIFY alphaThresholdChanged)

public:
  MaskedMouseArea(QQuickItem *parent = nullptr);

  bool contains(const QPointF &point) const override;

  bool isPressed() const { return m_pressed; }
  bool containsMouse() const { return m_containsMouse; }

  QUrl maskSource() const { return m_maskSource; }
  void setMaskSource(const QUrl &source);

  qreal alphaThreshold() const { return m_alphaThreshold; }
  void setAlphaThreshold(qreal threshold);

Q_SIGNALS:
  void pressed();
  void released();
  void clicked();
  void canceled();
  void pressedChanged();
  void maskSourceChanged();
  void containsMouseChanged();
  void alphaThresholdChanged();

protected:
  void setPressed(bool pressed);
  void setContainsMouse(bool containsMouse);
  void mousePressEvent(QMouseEvent *event) override;
  void mouseReleaseEvent(QMouseEvent *event) override;
  void hoverEnterEvent(QHoverEvent *event) override;
  void hoverLeaveEvent(QHoverEvent *event) override;
  void mouseUngrabEvent() override;

private:
  bool m_pressed;
  QUrl m_maskSource;
  QImage m_maskImage;
  QPointF m_pressPoint;
  qreal m_alphaThreshold;
  bool m_containsMouse;
};

#endif
