progressbar.h Example File

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  #ifndef PROGRESSBAR_H
  #define PROGRESSBAR_H

  #include <QWidget>

  /**
   * Widget which displays a the current fill state of the Engine's internal
   * buffer, and the current play/record position within that buffer.
   */
  class ProgressBar : public QWidget
  {
      Q_OBJECT

  public:
      explicit ProgressBar(QWidget *parent = 0);
      ~ProgressBar();

      void reset();
      void paintEvent(QPaintEvent *event);

  public slots:
      void bufferLengthChanged(qint64 length);
      void recordPositionChanged(qint64 recordPosition);
      void playPositionChanged(qint64 playPosition);
      void windowChanged(qint64 position, qint64 length);

  private:
      qint64 m_bufferLength;
      qint64 m_recordPosition;
      qint64 m_playPosition;
      qint64 m_windowPosition;
      qint64 m_windowLength;
  };

  #endif // PROGRESSBAR_H