initial commit

1 files changed, 33 insertions, 0 deletions

diff --git a/src/graphwidget.h b/src/graphwidget.h
new file mode 100644
index 0000000..f43e0db
--- /dev/null
+++ b/src/graphwidget.h
@@ -0,0 +1,33 @@
+#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_ */