109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
#include "view.h"
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#include <QPainter>
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MyView::MyView(QWidget *parent) : QWidget(parent)
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{
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}
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void MyView::paintEvent(QPaintEvent *event)
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{
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/* QPainter paint;
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paint.begin(this);
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paint.setBrush(Qt::white);
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paint.drawRect(plotrec);
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QString str=m_CurveName+"曲线数值分布图";
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QRect rec=QRect(plotrec.left(),plotrec.top(),plotrec.width(),30);
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paint.drawText(rec, Qt::AlignHCenter| Qt::AlignVCenter,str);
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paint.end();*/
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QPainter paint;
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paint.begin(this);
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// paint.setBrush(Qt::lightGray);
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//paint.drawRect(plotrec);
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QRect plotrec=widgetRec;
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QRect rec1=widgetRec;
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QString str=m_CurveName+"曲线数值分布图";
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QRect rec=QRect(plotrec.left(),plotrec.top(),plotrec.width(),30);
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paint.drawText(rec, Qt::AlignHCenter| Qt::AlignVCenter,str);
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QRect rthy=plotrec;
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rthy.adjust(70,40,-60,-60);
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int x0=rthy.left(),y0=rthy.bottom(),h=rthy.height(),w=rthy.width();
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int ptotal=point[0],pmax=point[0];
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for(int i=1;i<10*m_SmallGrid;i++)
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{
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ptotal+=point[i];
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if(pmax<point[i])pmax=point[i];
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}
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float hmax=100.*(float)pmax/(float)ShowPoint;
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plotrec.setTop(rthy.bottom()+16);
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for(int i=0;i<=10;i++)
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{
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//横线
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paint.drawLine(x0,y0-i*h/10,x0+w,y0-i*h/10);
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str=QString::number(i*m_Ymax/10.,'f',1);
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if((m_Ymax/10.)==int(m_Ymax/10))str=QString::number(i*m_Ymax/10.);//测试5，20
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paint.drawText(x0-25,y0-i*h/10+10,str);
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//纵线
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paint.drawLine(x0+i*w/10,y0-h,x0+i*w/10,y0);
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if(i%2==0)
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{
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plotrec.setLeft(x0+(i-1)*w/10);
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plotrec.setRight(x0+(i+1)*w/10);
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str=QString::number(m_Xmin+i*(m_Xmax-m_Xmin)/10.);
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paint.drawText(plotrec, Qt::AlignHCenter| Qt::AlignTop,str);
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}
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}
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//写x、y轴坐标名
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rec1.adjust(0,40,rec1.left()+40-rec1.right(),0);
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//rec1.top+=40;
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//rec1.right=rec1.left+40;
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paint.drawText(rec1,Qt::AlignHCenter| Qt::AlignTop,"pp");//"频");
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rec1.adjust(0,20,0,0);//rec1.top+=20;
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paint.drawText(rec1,Qt::AlignHCenter| Qt::AlignTop,"LL");//"率");//dc.DrawText("",rec1,DT_SINGLELINE|DT_TOP|DT_CENTER);
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rec1.adjust(0,20,0,0);//rec1.top+=20;
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paint.drawText(rec1,Qt::AlignHCenter| Qt::AlignTop,"(%)");//dc.DrawText("",rec1,DT_SINGLELINE|DT_TOP|DT_CENTER);
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plotrec.setLeft(x0);plotrec.setBottom(plotrec.bottom()-10);
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paint.drawText(plotrec,Qt::AlignHCenter| Qt::AlignBottom,m_CurveName+m_CurveUnit);//dc.DrawText(,plotrec,DT_SINGLELINE|DT_BOTTOM|DT_CENTER);
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//CBrush *oldBrush=dc.SelectObject(&GreenBrush);
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for(int i=0;i<10*m_SmallGrid;i++)
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{
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plotrec.setLeft(x0+i*w/(10*m_SmallGrid));//plotrec.left=x0+i*w/(10*m_SmallGrid);//注意：i*w/(10*m_SmallGrid)和w/(10*m_SmallGrid)*i误差挺大
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plotrec.setRight(x0+(i+1)*w/(10*m_SmallGrid));
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plotrec.setBottom(y0);
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float y=(float)point[i]/(float)pmax;//y=(float)point[i]/(float)pmax;
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plotrec.setTop(y0-y*h*hmax/m_Ymax);
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float left=m_Xmin+i*(m_Xmax-m_Xmin)/(10*m_SmallGrid);
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float right=m_Xmin+(i+1)*(m_Xmax-m_Xmin)/(10*m_SmallGrid);
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if(left>=m_Xmax2||right<=m_Xmin2)paint.setBrush(Qt::green);
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//if(i<ibegin||i>iend)dc.FillRect(plotrec,&GreenBrush);
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else paint.setBrush(Qt::red);
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paint.drawRect(plotrec);
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}
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if(!m_DrawLjpl) {
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paint.end();
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return;
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}
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//画累计频率线
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int pp=0;
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QPen pen(Qt::red);
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pen.setStyle(Qt::SolidLine);
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pen.setWidth(2);
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paint.setPen(pen);
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float x1=x0,y1=y0;
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for(int i=0;i<10*m_SmallGrid;i++)
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{
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pp+=point[i];
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float x=x0+(float)((i+1.)*w/(10.*m_SmallGrid));
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float y=(float)pp/(float)ShowPoint;//ptotal;
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paint.drawLine(x1,y1,x,y0-y*h);
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x1=x,y1=y0-y*h;
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}
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paint.end();
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}
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