void PieView::paintEvent(QPaintEvent *)
{
QPainter painter(viewport());
painter.setPen(Qt::black);
int x0=40;
int y0=250;
//y坐标轴
painter.drawLine(x0,y0,40,30);
painter.drawLine(38,32,40,30);
painter.drawLine(40,30,42,32);
painter.drawText(20,30,tr("销售数量"));
for(int i=1;i<5;i++)
{
painter.drawLine(-1,-i*50,1,-i*50);
painter.drawText(-20,-i*50,tr("%1").arg(i*5));
}
//x 坐标轴
painter.drawLine(x0,y0,540,250);
painter.drawLine(538,248,540,250);
painter.drawLine(540,250,538,252);
painter.drawText(545,250,tr("品牌"));
int pos=x0+20;
int row;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,0,rootIndex());
QString dep=model()->data(index).toString();
painter.drawText(pos,y0+20,dep);
pos+=50;
}
int posN=x0+20;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,1,rootIndex());
int sell=model()->data(index).toDouble();
int width=10;
QModelIndex colorIndex = model()->index(row,0,rootIndex());
QColor color = QColor(model()->data(colorIndex,Qt::DecorationRole).toString());
if(selections->isSelected(index))
painter.setBrush(QBrush(color,Qt::Dense3Pattern));
else
painter.setBrush(QBrush(color));
painter.drawRect(QRect(posN,y0-sell*10,width,sell*10));
QRegion regionM(posN,y0-sell*10,width,sell*10);
RegionList<<regionM;
posN+=50;
}
}
// paintEvent()函数具体完成柱状统计图绘制的工作
void HistogramView::paintEvent(QPaintEvent *)
{
QPainter painter(viewport());
painter.setPen(Qt::black);
int x0=40;
int y0=250;
//y坐标轴
painter.drawLine(x0,y0,40,30);
painter.drawLine(38,32,40,30);
painter.drawLine(40,30,42,32);
painter.drawText(20,30,tr("人数"));
for(int i=1;i<5;i++)
{
painter.drawLine(-1,-i*50,1,-i*50);
painter.drawText(-20,-i*50,tr("%1").arg(i*5));
}
//x 坐标轴
painter.drawLine(x0,y0,540,250);
painter.drawLine(538,248,540,250);
painter.drawLine(540,250,538,252);
painter.drawText(545,250,tr("部门"));
int posD=x0+20;
int row;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,0,rootIndex());
QString dep=model()->data(index).toString();
painter.drawText(posD,y0+20,dep);
posD+=50;
}
//男
int posM=x0+20;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,1,rootIndex());
int male=model()->data(index).toDouble();
int width=10;
if(selections->isSelected(index))
painter.setBrush(QBrush(Qt::blue,Qt::Dense3Pattern));
else
painter.setBrush(Qt::blue);
painter.drawRect(QRect(posM,y0-male*10,width,male*10));
QRegion regionM(posM,y0-male*10,width,male*10);
MRegionList<<regionM;
posM+=50;
}
//女
int posF=x0+30;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,2,rootIndex());
int female=model()->data(index).toDouble();
int width=10;
if(selections->isSelected(index))
painter.setBrush(QBrush(Qt::red,Qt::Dense3Pattern));
else
painter.setBrush(Qt::red);
painter.drawRect(QRect(posF,y0-female*10,width,female*10));
QRegion regionF(posF,y0-female*10,width,female*10);
FRegionList<<regionF;
posF+=50;
}
//退休
int posS=x0+40;
for(row=0;row<model()->rowCount(rootIndex());row++)
{
QModelIndex index=model()->index(row,3,rootIndex());
int retire=model()->data(index).toDouble();
int width=10;
if(selections->isSelected(index))
painter.setBrush(QBrush(Qt::green,Qt::Dense3Pattern));
else
painter.setBrush(Qt::green);
painter.drawRect(QRect(posS,y0-retire*10,width,retire*10));
QRegion regionS(posS,y0-retire*10,width,retire*10);
SRegionList<<regionS;
posS+=50;
}
}
