seer/src/QProgressIndicator.h

#pragma once

#include <QWidget>
#include <QPaintEvent>
#include <QColor>
#include <QTimer>
#include <QPainter>

class QProgressIndicator : public QWidget {

        Q_OBJECT

        Q_PROPERTY(int _type     READ type     WRITE setType)
        Q_PROPERTY(QColor _color READ color    WRITE setColor)
        Q_PROPERTY(int _interval READ interval WRITE setInterval)

    public:
        QProgressIndicator(QWidget* parent = 0);
       ~QProgressIndicator();

        enum {
            line_rotate,
            line_scale,
            ball_rotate,
            circle_rotate
        };

        void                paintEvent          (QPaintEvent* e);

        void                start               ();
        void                stop                ();

        int                 type                () const;
        QString             typeName            () const;
        void                setType             (int type);
        void                setType             (const QString& type);
        QStringList         types               () const;

        const QColor&       color               ();
        void                setColor            (const QColor &color);

        int                 interval            ();
        void                setInterval         (int interval);

    private slots:
        void                onTimeout           ();

    private:
        void                drawRotateLine      (QPainter* painter);
        void                drawScaleLine       (QPainter* painter);
        void                drawRotateBall      (QPainter* painter);
        void                drawRotateCircle    (QPainter* painter);

    private:
        int                 _type;
        int                 _interval;
        QColor              _color;

        int                 _angle;
        qreal               _scale;

        QTimer*             _timer;
};