华清远见第六课程作业day11

#ifndef WIDGET_H
#define WIDGET_H

#include 
#include 
#include 
#include 
#include 
#include 
#include 

#define PI 3.14

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = 0);
    ~Widget();
    void paintEvent(QPaintEvent *);//重写绘制事件函数
    void Init_Parameter();//初始化参数函数
    void Set_Mask(QPainter *);//设置窗体透明
    void Draw_Clock(QPainter *);//绘制时钟
    void Draw_Broad(QPainter *);//绘制时钟盘
    void Draw_Dial(QPainter *);//绘制刻度盘
    void Draw_Text(QPainter *);//绘制刻度值
    void Draw_Pointer(QPainter *);//绘制指针

private:
    QTimer *timer;//定时器
    QPoint Center_pos;//时钟圆心坐标
    int R_Edge;//外部圆半径
    int R_Inside;//内部圆半径
    int R_Center;//中心小圆半径
    int R_Pointer;//中心指针圆半径
    int Div_Max = 12;//大刻度
    int Div_Min = 5;//小刻度
    float BaseAngle = 270;
    int H;//时
    int M;//分
    int S ;//秒

};

#endif // WIDGET_H

#include "dialog.h"
#include "ui_dialog.h"
#include 
#include 
#include 
#include 
#include 
 
 
 
Dialog::Dialog(QWidget *parent)
  : QDialog(parent)
  , ui(new Ui::Dialog)
{
  ui->setupUi(this);
 
 
  resize(959,959);
 
 
  setWindowTitle("My Clock");
 
 
  QTimer *timer = new QTimer(this);
 
 
  timer->start(1000);
 
 
  //信号的链接
  connect(timer,SIGNAL(timeout()),this,SLOT(update()));
 
 
}
 
 
Dialog::~Dialog()
{
  delete ui;
}
 
 
 
void Dialog::paintEvent(QPaintEvent *event)
{
  QPainter painter(this);
 
 
  QPixmap map(":/Resrouse/Pic.jpg");
 
 
  QRect q(0,0,959,959);
 
 
  QRect q2(0,0,width(),height());
 
 
 
  painter.drawPixmap(q2,map,q);
 
 
  //防止图形走样
  painter.setRenderHint(QPainter::Antialiasing,true);
 
 
  //使得窗口可调节，图形随之变形
  painter.setWindow(0,0,200,200);
 
 
  //重新设置坐标轴的原点位置
  painter.translate(100,100);
 
 
 
  //调用绘制图像函数，分别绘制时分秒
  drawClock(&painter);
  drawSecond(&painter);
  drawMinute(&painter);
  drawHour(&painter);
 
 
}
 
 
void Dialog::drawSecond(QPainter *painter)
{
 
 
  static const QPoint Second[4]=
  {
    QPoint(2, 5),
    QPoint(0, 18),
    QPoint(-2, 5),
    QPoint(0, -90)
  };
 
 
  //获取当前系统时间currentTime();
  QTime time = QTime::currentTime();
 
 
  //设置绘制颜色
  painter->setBrush(Qt::red);
  painter->setPen(Qt::red);
 
 
  //save进行保存
  painter->save();
 
 
  //完成绘制（时间换算倾斜角度）
  painter->rotate(6.0*time.second());
  painter->drawConvexPolygon(Second,4);
 
 
  //ratate进行复位
  painter->restore();
 
}
 
 
void Dialog::drawMinute(QPainter *painter)
{
 
  static const QPoint Minute[4]=
  {
    QPoint(2, 5),
    QPoint(0, 16),
    QPoint(-2, 5),
    QPoint(0, -70)
  };
 
 
  QTime time = QTime::currentTime();
 
 
 
  painter->setBrush(Qt::blue);
  painter->setPen(Qt::blue);
 
 
 
  painter->save();
 
 
 
  painter->rotate(6.0*(time.minute()+time.second()/60.0));
  painter->drawConvexPolygon(Minute,4);
 
 
  painter->restore();
 
 
}
 
 
void Dialog::drawHour(QPainter *painter)
{
  static const QPoint Hour[4]=
  {
    QPoint(2, 5),
    QPoint(0, 13),
    QPoint(-2, 5),
    QPoint(0, -40)
  };
 
 
  QTime time = QTime::currentTime();
 
 
  painter->setBrush(Qt::yellow);
  painter->setPen(Qt::yellow);
 
 
  painter->save();
 
 
  painter->rotate(30.0*(time.hour()+time.minute()/60.0));
  painter->drawConvexPolygon(Hour,4);
 
 
  painter->restore();
 
 
}
 
 
void Dialog::drawClock(QPainter *painter)
{
  QPen pen;
 
 
  pen.setWidth(2);
 
 
  pen.setColor(Qt::white);
 
 
  painter->setPen(pen);
 
 
  //绘制钟表刻度盘和数字
  for (int i = 1; i <=60; ++i)
  {
 
    painter->save();
 
    painter->rotate(6*i);//坐标轴旋转6度
 
    //分别绘制长短线
    if (i % 5 == 0)
    {
 
      painter->drawLine(0, -98, 0, -82);
      painter->drawText(-20, -82, 40, 40,Qt::AlignHCenter | Qt::AlignTop,QString::number(i/5));
    }
    else
    {
 
      painter->drawLine(0, -98, 0, -88);
    }
 
    painter->restore();//绘制图形后复位坐标系
  }
 
 
}