#coding=utf-8
'''
 
'''

import sys
from PyQt4 import  QtGui, QtCore  
from PyQt4.QtCore import Qt
from PyQt4.QtCore import QPoint
from PyQt4.QtCore import QTimer
from PyQt4.QtCore import QTime 
from PyQt4.QtGui import QPainter
from PyQt4.QtGui import QColor 
from PyQt4.QtGui import QPolygon
from PyQt4.QtCore import SIGNAL as signal


class Clock(QtGui.QWidget):
    '''
    classdocs
    '''


    def __init__(self):
        '''
        Constructor
        '''
        
        super(Clock, self).__init__()  
        
        self.hourColor=QColor(127, 0, 127);
        self.minuteColor=QColor(0, 127, 127, 191)
        self.secondColor=QColor(127, 127,0,120)
        self.initUI()
        self.timer = QTimer()
        self.timer.timeout.connect(self.update)
        self.timer.start(30) 
        self.show() 
        
    def handChange(self):    
        
        self.side = min(self.width(), self.height())
        self.hand=(max(self.side/200,4), max(self.side/100,8), max(self.side/40,30))
        self.hourHand=QPolygon([QPoint(self.hand[0],self.hand[1]),QPoint(-self.hand[0],self.hand[1]),QPoint(0,-self.hand[2])])
        self.minuteHand=QPolygon([QPoint(self.hand[0],self.hand[1]),QPoint(-self.hand[0],self.hand[1]),QPoint(0,-self.hand[2]*2)])
        self.secondHand=QPolygon([QPoint(self.hand[0],self.hand[1]),QPoint(-self.hand[0],self.hand[1]),QPoint(0,-self.hand[2]*3)]) 
    
    def set_transparency(self, enabled):
        if enabled:
            self.setAutoFillBackground(False)
        else:
            self.setAttribute(Qt.WA_NoSystemBackground, False)
        #下面這種方式好像不行
#        pal=QtGui.QPalette()
#        pal.setColor(QtGui.QPalette.Background, QColor(127, 127,10,120))
#        self.setPalette(pal) 
        self.setAttribute(Qt.WA_TranslucentBackground, enabled)
        self.repaint()
   
    def initUI(self):      
 
        self.setGeometry(300, 300, 300, 200)
        self.setWindowTitle('Clock')
        self.handChange()
        self.rightButton=False
        # 下面兩個(gè)配合實(shí)現(xiàn)窗體透明和置頂
        sizeGrip=QtGui.QSizeGrip(self)
        self.setWindowFlags(Qt.FramelessWindowHint|Qt.WindowStaysOnTopHint|Qt.SubWindow ) 
        #self.setMouseTracking(True);
        self.trans=True

        self.set_transparency(True) 

        quitAction = QtGui.QAction(QtGui.QIcon('quit.png'), '&Quit', self)
        self.connect(quitAction,signal("triggered()"),QtGui.qApp.quit)
        backAction = QtGui.QAction( '&Back', self)
        self.connect(backAction,signal("triggered()"),self.backClicked)
        self.popMenu= QtGui.QMenu() 
        self.popMenu.addAction(quitAction) 
        self.popMenu.addAction(backAction) 
  
        
    def resizeEvent(self, e):  
        self.handChange()
        
    def backClicked(self):
        if self.trans == True :
            self.trans = False  
            self.set_transparency(False)
        else: 
            self.trans = True 
            self.set_transparency(True)
        
    def mouseReleaseEvent(self,e): 
        if self.rightButton == True:
            self.rightButton=False
            self.popMenu.popup(e.globalPos())

    def mouseMoveEvent(self, e):
        if e.buttons() & Qt.LeftButton:
            self.move(e.globalPos()-self.dragPos)
            e.accept()
    def mousePressEvent(self, e):
      
        if e.button() == Qt.LeftButton: 
            self.dragPos=e.globalPos()-self.frameGeometry().topLeft() 
            e.accept()
        if e.button() == Qt.RightButton and self.rightButton == False:
            self.rightButton=True
    
    def paintEvent(self, e): 
        time = QTime.currentTime() 
        qp = QPainter()

        qp.begin(self)
        #qp.setRenderHint(QPainter.Antialiasing)  # 開啟這個(gè)抗鋸齒,會很占cpu的!
        qp.translate(self.width() / 2, self.height() / 2) 
        qp.scale(self.side / 200.0, self.side / 200.0)
 
        qp.setPen(QtCore.Qt.NoPen)
        qp.setBrush(self.hourColor)
        qp.save()
        qp.rotate(30.0 * ((time.hour() + time.minute()/ 60.0)))
        qp.drawConvexPolygon(self.hourHand)
        qp.restore()
        
        qp.setPen(self.hourColor)
        for i in range(12): 
            qp.drawLine(88, 0, 96, 0)
            qp.rotate(30.0) 
        
        qp.setPen(QtCore.Qt.NoPen)
        qp.setBrush(self.minuteColor)
        qp.save()
        
        qp.rotate(6.0 * ((time.minute() + (time.second()+time.msec()/1000.0) / 60.0)))
        qp.drawConvexPolygon(self.minuteHand)
        qp.restore()
        
        
        qp.setPen(self.minuteColor)
        for i in range(60): 
            if (i % 5) is not 0:
                qp.drawLine(92, 0, 96, 0)
            qp.rotate(6.0) 
        
        qp.setPen(QtCore.Qt.NoPen)
        qp.setBrush(self.secondColor)
        qp.save()
        qp.rotate(6.0*(time.second()+time.msec()/1000.0))
        qp.drawConvexPolygon(self.secondHand)
        qp.restore() 
        qp.end() 
if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    clock = Clock()
    sys.exit(app.exec_())
 

標(biāo)簽： ssd

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