#ifndef INTERACTIONCANVAS_H
#define INTERACTIONCANVAS_H

#include <QLabel>
#include <QDebug>
#include <QMouseEvent>
#include <QList>
#include <QPoint>
#include <QPainter>

#include "line.h"

class InteractionCanvas : public QLabel
{
public:
    InteractionCanvas();
    ~InteractionCanvas();

    // QWidget interface
protected:
    void mouseMoveEvent(QMouseEvent *mouseEvent);
    void mousePressEvent(QMouseEvent *mouseEvent);
    void mouseReleaseEvent(QMouseEvent *mouseEvent);
    void keyPressEvent(QKeyEvent *keyEvent);
    void keyReleaseEvent(QKeyEvent *keyEvent);

private:
    void changeSelectedLine(Line *newSelectedLine);
    QList<Line> m_Lines;
    Line *m_NewLine;
    Line *m_SelectedLine;
    QPoint m_MousePressPoint;
    QPoint m_MouseReleasePoint;
    QPoint m_LastMousePosition;

    // QWidget interface
protected:
    void paintEvent(QPaintEvent *paintEvent);
};

#endif // INTERACTIONCANVAS_H