groovy 方式 寫的qt時鐘代碼

/**
 * 
 */
package com.suziwen

import com.trolltech.qt.core.QPoint
import com.trolltech.qt.core.QTime
import com.trolltech.qt.core.QTimer
import com.trolltech.qt.gui.QApplication
import com.trolltech.qt.gui.QColor
import com.trolltech.qt.gui.QHideEvent
import com.trolltech.qt.gui.QPaintEvent
import com.trolltech.qt.gui.QPainter
import com.trolltech.qt.gui.QPen
import com.trolltech.qt.gui.QPolygon
import com.trolltech.qt.gui.QShowEvent
import com.trolltech.qt.gui.QWidget

/**
 * @author suziwen
 *
 */

class Clock extends QWidget {
    QTimer qtimer = new QTimer();

    static def hourHand = new QPolygon([new QPoint(7,8),new QPoint(-7,8),new QPoint(0,-30)]);
    static def minuteHand = new QPolygon([new QPoint(7,8),new QPoint(-7,8),new QPoint(0,-70)]);
    static def secondHand = new QPolygon([new QPoint(3,8),new QPoint(-3,8),new QPoint(0,-90)]);
    static def hourColor = new QColor(127,0,127);
    static def minuteColor = new QColor(0,129,129,129);
    static def secondColor = new QColor(0,100,100,100);
    Clock(){
        super();
        qtimer.timeout.connect(this, "update()");
    }
    void hideEvent (QHideEvent event){
        qtimer.stop();
    }
    void showEvent(QShowEvent event){
        qtimer.start(1000);
    }
    void  paintEvent(QPaintEvent e){
        def side = Math.min(this.width(),this.height());
        def time = QTime.currentTime();
        def painter = new QPainter(this);
        painter.translate(this.width()/2, this.height()/2);
        painter.setRenderHint(QPainter.RenderHint.Antialiasing);
        painter.scale(side/200, side/200);
        painter.setPen(QPen.NoPen);
        painter.setBrush(hourColor);
        painter.save();
        painter.rotate(30.0*(time.hour() + time.minute()/60.0));
        painter.drawConvexPolygon(hourHand);
        painter.restore();
        painter.setPen(hourColor);
        for( def i in 0..12){
            painter.drawLine(0, 92, 0, 96);
            painter.rotate(30.0);
        }
        painter.setPen(QPen.NoPen);
        painter.setBrush(minuteColor);
        painter.save();
        painter.rotate(6.0*(time.minute() + time.second()/60.0));
        painter.drawConvexPolygon(minuteHand);
        painter.restore();
        painter.setPen(minuteColor);
        for(def i in 0..60){
            if(i % 5 != 0 ){
                painter.drawLine(0, 94, 0, 96);
            }
            painter.rotate(6.0);
        }
        painter.setPen(QPen.NoPen);
        painter.setBrush(secondColor);
        painter.save();
        painter.rotate(6.0*time.second());
        painter.drawConvexPolygon(secondHand);
        painter.restore();
    }

    static main(args) {
        QApplication app = new QApplication(args);
        def clock = new Clock();
        clock.resize(500, 500);
        clock.show();
        app.exec();
    }

}

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