lab 7 z1 2 sem

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
}

Widget::~Widget()
{
    delete ui;
}
void Widget::paintEvent(QPaintEvent *event){
    QPainter paint(this);
    QStyleOption opt;
    opt.init(this);
    style()->drawPrimitive(QStyle::PE_Widget, &opt, &paint, this);
    paint.setRenderHint(QPainter::Antialiasing, true);
    paint.setBrush(QBrush(Qt::red));
    paint.setPen(QPen(Qt::black, 2));
    paint.drawPie(QRect(310, 120, 180, 340), -180*16, -90*16);//красный
    paint.setBrush(QBrush(Qt::magenta));
    paint.drawPie(QRect(310, 120, 180, 340), -270*16, -90*16);//фиолетовый
    paint.setBrush(QBrush(Qt::blue));
    paint.drawPie(QRect(350, 120, 120, 340), -180*16, -90*16);//синий
    paint.setBrush(QBrush(Qt::green));
    paint.drawPie(QRect(350, 120, 120, 340), -270*16, -90*16);//зеленый
    paint.setBrush(QBrush(Qt::yellow));
    paint.drawPie(QRect(390, 120, 40, 340), -180*16, -180*16);//желтый
    paint.setBrush(Qt::white);
    for (int i=310; i<470; i+=40){
    paint.drawPie(QRect(i, 272, 40, 40), -180*16, -180*16);}
    paint.drawPie(QRect(470, 272, 40, 40), -180*16, -90*16);
    paint.setPen(QPen(Qt::white, 2));
    paint.drawLine(310, 292, 490, 292);
    paint.drawLine(490, 292, 490, 274);
    paint.setPen(QPen(Qt::black, 4));
    paint.drawLine(400, 277, 400, 390);//ручка
    paint.drawArc(400, 365, 50, 50, 180*16, 180*16);//ручка
    paint.setBrush(QBrush(Qt::black));
    paint.setPen(QPen(Qt::black, 4));
    QPolygon polygon;
    polygon << QPoint(396, 119) << QPoint(400, 109) << QPoint(404, 119);
    paint.drawPolygon(polygon);
    paint.setPen(QPen(Qt::black, 2));
    paint.drawLine(400, 109, 400, 103);

}