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#ifndef GRAPHWIDGET_H_
#define GRAPHWIDGET_H_
#include <QWidget>
class IDataSource;
class GraphWidget : public QWidget
{
Q_OBJECT
public:
GraphWidget(QWidget* parent = NULL);
virtual ~GraphWidget();
void setDataSource(IDataSource* source);
void readNextValue();
protected:
virtual void resizeEvent(QResizeEvent * event);
virtual void paintEvent(QPaintEvent * event);
private:
static const int HISTSIZE = 2000;
static const QColor LINE_COLOR, BACK_COLOR, BAR_COLOR;
IDataSource* _source;
qint64 _history[HISTSIZE];
int _histPos;
float _vScale;
bool _doubleSpace;
QRect _updateRectSmall;
};
#endif /* GRAPHWIDGET_H_ */
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