qt-creator/src/libs/utils/progressindicator.h

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#ifndef PROGRESSINDICATOR_H
#define PROGRESSINDICATOR_H

#include "utils_global.h"

#include <QTimer>
#include <QWidget>

namespace Utils {

namespace Internal { class ProgressIndicatorPrivate; }

class QTCREATOR_UTILS_EXPORT ProgressIndicator : public QWidget
{
    Q_OBJECT
public:
    enum IndicatorSize {
        Small,
        Medium,
        Large
    };

    explicit ProgressIndicator(IndicatorSize size, QWidget *parent = 0);

    void setIndicatorSize(IndicatorSize size);
    IndicatorSize indicatorSize() const;

    QSize sizeHint() const;

    void attachToWidget(QWidget *parent);

protected:
    void paintEvent(QPaintEvent *);
    void showEvent(QShowEvent *);
    void hideEvent(QHideEvent *);
    bool eventFilter(QObject *obj, QEvent *ev);

private:
    void step();
    void resizeToParent();

    ProgressIndicator::IndicatorSize m_size;
    int m_rotationStep;
    int m_rotation;
    QTimer m_timer;
    QPixmap m_pixmap;
};

} // Utils

#endif // PROGRESSINDICATOR_H