#include "widget.h"
#include "ui_widget.h"
#include <QPainter>
#include <QColor>
#include <QTimer>
#include <QTime>
#include <QDebug>
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(update()));
timer->start(1000);
setWindowTitle(tr("Analog Clock"));
resize(200,200);
}
Widget::~Widget()
{
delete ui;
}
void Widget::paintEvent(QPaintEvent *)
{
QPainter painter(this);
//painter.drawEllipse(0,0,200,200);
// QRectF rectangle(100.0, 100.0, 200.0, 200.0);
// painter.drawEllipse(rectangle);
QPoint hourHand[3] = {
QPoint(7, 8),
QPoint(-7, 8),
QPoint(0, -40)
};
QPoint minuteHand[3] = {
QPoint(7, 8),
QPoint(-7, 8),
QPoint(0, -70)
};
QPoint secondHand[3] = {
QPoint(7, 8),
QPoint(-7, 8),
QPoint(0, -90)
};
QColor hourColor(127, 0, 127);
QColor minuteColor(0, 127, 127, 191);
QColor secondColor(0, 160, 230, 150);
int side = qMin(width(), height());
//if(width()!=height())
//resize(sides, sides);
QTime time = QTime::currentTime();
//QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
//以中心坐标为(0,0)
painter.translate(width() / 2, height() / 2);
painter.scale(side / 200.0, side / 200.0);
painter.drawEllipse(-200/2,-200/2,200, 200);
//ui->label->geometry(10,10,10,10,Qt::AlignTop);
painter.drawText(-30,-60,100,20,Qt::AlignTop,"我的时钟");
qDebug()<<side;
//画时针
//设置无边框
painter.setPen(Qt::NoPen);
painter.setBrush(hourColor);
painter.save();
painter.rotate(30.0 * ((time.hour()-1 + time.minute() / 60.0)));
painter.drawConvexPolygon(hourHand, 3);
painter.restore();
painter.setPen(hourColor);
for (int i = 1; i < 13; ++i) {
painter.drawText(-5,-80,30,30,Qt::AlignTop,QString::number(i));
//painter.rotate(30.0);
painter.drawLine(88, 0, 96, 0);
painter.rotate(30.0);
}
//画分针
painter.setPen(Qt::NoPen);
painter.setBrush(minuteColor);
painter.save();
painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
painter.drawConvexPolygon(minuteHand, 3);
painter.restore();
painter.setPen(minuteColor);
for (int j = 0; j < 60; ++j) {
if ((j % 5) != 0)
painter.drawLine(92, 0, 96, 0);
painter.rotate(6.0);
}
painter.setPen(Qt::NoPen);
painter.setBrush(secondColor);
painter.save();
painter.rotate(6.0 * time.second());
painter.drawConvexPolygon(secondHand,3);
painter.restore();
painter.setPen(minuteColor);
}
