GradientStopWidget.h

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#pragma once

#include <QtGui/QWidget.h>


class GradientStopWidget : public QWidget
{
        Q_OBJECT
public:
        GradientStopWidget(QWidget *parent);
        ~GradientStopWidget(void);

        // events
        void mouseReleaseEvent(QMouseEvent *ev);
        void mousePressEvent(QMouseEvent *ev);
        void mouseMoveEvent(QMouseEvent *ev);
        void mouseDoubleClickEvent(QMouseEvent *ev);
        void paintEvent(QPaintEvent *ev);

        QGradientStops getGradientStops() { return _stops; }
        void setGradientStops(const QGradientStops &stops);
        
        QSize sizeHint() const { return QSize(150, 10); }
        
signals:
    void gradientChanged(const QGradientStops &stops);
private: 
        void removePoint(int idx);
        void insertPoint(int x);
        void startMovePoint(int idx);
        void stopMovePoint(int x);

        void fireChanged();
        
        int GradientStopWidget::pointNearCoordinate(int x);

        QGradientStops _stops;
        int _moveIdx;
};