呵呵！一个QT通过贴图实现的模拟时钟 c文件

#include "draw.h"
#include "ui_draw.h"
#include <QPixmap>
draw::draw(QWidget *parent)
    : QDialog(parent), ui(new Ui::draw)
{
    ui->setupUi(this);
//    this->setWindowFlags( Qt::FramelessWindowHint);
    ctrlPoint.setX(this->width() / 2);
    ctrlPoint.setY(this->height() / 2);
    m_pixmap = QPixmap("Skin/Night Blue/main.png");
    m_mainScale = this->width() /((qreal)(m_pixmap.width()))  ;
    m_pixmap = QPixmap("Skin/Night Blue/hour.png");
    m_hourScale = (this->width()/(qreal)2.0 ) / (m_pixmap.width()) ;
    m_pixmap = QPixmap("Skin/Night Blue/min.png");
    m_minScale = (this->width()/(qreal)1.8 ) / (m_pixmap.width()) ;
    m_pixmap = QPixmap("Skin/Night Blue/sec.png");
    m_secScale = (this->width()/(qreal)1.5 ) / (m_pixmap.width()) ;
//    qDebug("m_mainScale = %f , m_hourScale = %f , m_minScale = %f ,m_secScale = %f",m_mainScale,m_hourScale,m_minScale,m_secScale);
    m_secRotation = QTime::currentTime ().second() *6 - 90;
    m_minRotation = QTime::currentTime ().minute() *6 - 90;
    m_hourRotation = m_minRotation / 10 + QTime::currentTime ().hour() * 30 - 90;
    upTimer = new QTimer(this);
    connect(upTimer,SIGNAL(timeout()),this,SLOT(updataTime()));
    upTimer->start(500);
}
draw::~draw()
{
    delete ui;
}
void draw::paintEvent(QPaintEvent *event)
{
    //face
    QPainter painter(this);
    m_pixmap = QPixmap("Skin/Night Blue/main.png");
    painter.scale(m_mainScale,m_mainScale);
    painter.drawPixmap(QPointF(0, 0), m_pixmap);
    //hour
    QPainter p