#ifndef DRAWWAVEVIEW_H
#define DRAWWAVEVIEW_H

#include <QWidget>
#include <QPaintEvent>
//水平线条数
#define D_HOR_LIENS 4//5
//垂直线条数
#define D_VER_LINES 8//10
//视图边距
#define D_VIEW_MARGIN_LEFT 80//左、下边界
#define D_VIEW_MARGIN_BOTTOM 30//左、下边界
#define D_VIEW_MARGIN_RIGHT 40//右、上边界
#define D_VIEW_MARGIN_TOP 25//上边界


class DrawWaveView : public QWidget
{
    Q_OBJECT
public:
    explicit DrawWaveView(QWidget *parent = nullptr);	
	//QRect widgetRec;	
	float m_Ymax,m_Ymin;
	float m_Xmin,m_Xmax;
	void initView();
	void setValues(float *values);
	void setCount(int count);
	void setTime(int time);
	void setXGrid(int xGrid);//X轴网格数
	void setYGrid(int yGrid);//Y轴网格数
signals:

public slots:

    // QWidget interface
protected:
	 virtual void paintEvent(QPaintEvent *evt);
	
private:
	//绘制坐标
	void drawCoord(QPainter *painter);
	//绘制水平网格
	void drawHorlines(QPainter *painter);
	//绘制垂直网格
	void drawVerLines(QPainter *painter);
	//波列数据转换为图像坐标
	QPointF coordWavePoint(int ix,float value);
	//绘制波列数据点
	void drawDataPoints(QPainter *painter);

private:
	float *m_values;
	int m_count;
	int m_time;
	int m_xGrid,m_yGrid;
	bool isInit;
	float m_xGridValue;
	float m_yGridValue;

	float m_hGridWidth;
	float m_vGridHeight;

	float m_width;
	float m_height;

	float m_pixXValue;
	float m_pixYValue;
};

#endif // DRAWWAVEVIEW_H