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146 lines
3.8 KiB
146 lines
3.8 KiB
#!/usr/bin/env python
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# TQt tutorial 10.
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import sys
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from qt import *
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class LCDRange(TQVBox):
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def __init__(self,parent=None,name=None):
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TQVBox.__init__(self,parent,name)
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lcd = TQLCDNumber(2,self,'lcd')
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self.slider = TQSlider(TQt.Horizontal,self,'slider')
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self.slider.setRange(0,99)
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self.slider.setValue(0)
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self.connect(self.slider,SIGNAL('valueChanged(int)'),lcd,SLOT('display(int)'))
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self.connect(self.slider,SIGNAL('valueChanged(int)'),self,PYSIGNAL('valueChanged(int)'))
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self.setFocusProxy(self.slider)
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def value(self):
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return self.slider.value()
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def setValue(self,value):
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self.slider.setValue(value)
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def setRange(self,minVal,maxVal):
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if minVal < 0 or maxVal > 99 or minVal > maxVal:
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raise ValueError, 'LCDRange.setRange(): invalid range'
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self.slider.setRange(minVal,maxVal)
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class CannonField(TQWidget):
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def __init__(self,parent=None,name=None):
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TQWidget.__init__(self,parent,name)
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self.ang = 45
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self.f = 0
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self.setPalette(TQPalette(TQColor(250,250,200)))
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def angle(self):
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return self.ang
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def setAngle(self,degrees):
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if degrees < 5:
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degrees = 5
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if degrees > 70:
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degrees = 70
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if self.ang == degrees:
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return
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self.ang = degrees
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self.repaint(self.cannonRect(),0)
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self.emit(PYSIGNAL('angleChanged(int)'),(self.ang,))
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def force(self):
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return self.f
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def setForce(self,newton):
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if newton < 0:
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newton = 0
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if self.f == newton:
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return
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self.f = newton
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self.emit(PYSIGNAL('forceChanged(int)'),(self.f,))
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def paintEvent(self,ev):
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if not ev.rect().intersects(self.cannonRect()):
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return
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cr = self.cannonRect()
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pix = TQPixmap(cr.size())
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pix.fill(self,cr.topLeft())
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p = TQPainter(pix)
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p.setBrush(TQt.blue)
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p.setPen(TQt.NoPen)
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p.translate(0,pix.height() - 1)
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p.drawPie(TQRect(-35,-35,70,70),0,90 * 16)
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p.rotate(-self.ang)
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p.drawRect(TQRect(33,-4,15,8))
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p.end()
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p.begin(self)
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p.drawPixmap(cr.topLeft(),pix)
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def cannonRect(self):
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r = TQRect(0,0,50,50)
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r.moveBottomLeft(self.rect().bottomLeft())
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return r
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def sizePolicy(self):
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return TQSizePolicy(TQSizePolicy.Expanding,TQSizePolicy.Expanding)
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class MyWidget(TQWidget):
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def __init__(self,parent=None,name=None):
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TQWidget.__init__(self,parent,name)
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quit = TQPushButton('&Quit',self,'quit')
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quit.setFont(TQFont('Times',18,TQFont.Bold))
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self.connect(quit,SIGNAL('clicked()'),tqApp,SLOT('quit()'))
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self.angle = LCDRange(self,'angle')
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self.angle.setRange(5,70)
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self.force = LCDRange(self,'force')
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self.force.setRange(10,50)
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self.cannonField = CannonField(self,'cannonField')
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self.connect(self.angle,PYSIGNAL('valueChanged(int)'),self.cannonField.setAngle)
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self.connect(self.cannonField,PYSIGNAL('angleChanged(int)'),self.angle.setValue)
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self.connect(self.force,PYSIGNAL('valueChanged(int)'),self.cannonField.setForce)
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self.connect(self.cannonField,PYSIGNAL('forceChanged(int)'),self.force.setValue)
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grid = TQGridLayout(self,2,2,10)
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grid.addWidget(quit,0,0)
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grid.addWidget(self.cannonField,1,1)
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grid.setColStretch(1,10)
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leftBox = TQVBoxLayout()
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grid.addLayout(leftBox,1,0)
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leftBox.addWidget(self.angle)
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leftBox.addWidget(self.force)
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self.angle.setValue(60)
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self.force.setValue(25)
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self.angle.setFocus()
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TQApplication.setColorSpec(TQApplication.CustomColor)
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a = TQApplication(sys.argv)
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w = MyWidget()
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w.setGeometry(100,100,500,355)
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a.setMainWidget(w)
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w.show()
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a.exec_loop()
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