SIP4 python bindings for TQt
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tut8.py 2.6KB

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  1. #!/usr/bin/env python
  2. # TQt tutorial 8.
  3. import sys
  4. from python_tqt.qt import *
  5. class LCDRange(TQVBox):
  6. def __init__(self,parent=None,name=None):
  7. TQVBox.__init__(self,parent,name)
  8. lcd = TQLCDNumber(2,self,'lcd')
  9. self.slider = TQSlider(TQt.Horizontal,self,'slider')
  10. self.slider.setRange(0,99)
  11. self.slider.setValue(0)
  12. self.connect(self.slider,SIGNAL('valueChanged(int)'),lcd,SLOT('display(int)'))
  13. self.connect(self.slider,SIGNAL('valueChanged(int)'),self,PYSIGNAL('valueChanged(int)'))
  14. self.setFocusProxy(self.slider)
  15. def value(self):
  16. return self.slider.value()
  17. def setValue(self,value):
  18. self.slider.setValue(value)
  19. def setRange(self,minVal,maxVal):
  20. if minVal < 0 or maxVal > 99 or minVal > maxVal:
  21. raise ValueError, 'LCDRange.setRange(): invalid range'
  22. self.slider.setRange(minVal,maxVal)
  23. class CannonField(TQWidget):
  24. def __init__(self,parent=None,name=None):
  25. TQWidget.__init__(self,parent,name)
  26. self.ang = 45
  27. self.setPalette(TQPalette(TQColor(250,250,200)))
  28. def angle(self):
  29. return self.ang
  30. def setAngle(self,degrees):
  31. if degrees < 5:
  32. degrees = 5
  33. if degrees > 70:
  34. degrees = 70
  35. if self.ang == degrees:
  36. return
  37. self.ang = degrees
  38. self.repaint()
  39. self.emit(PYSIGNAL('angleChanged(int)'),(self.ang,))
  40. def paintEvent(self,ev):
  41. p = TQPainter(self)
  42. p.drawText(200,200,'Angle = %d' % (self.ang))
  43. def sizePolicy(self):
  44. return TQSizePolicy(TQSizePolicy.Expanding,TQSizePolicy.Expanding)
  45. class MyWidget(TQWidget):
  46. def __init__(self,parent=None,name=None):
  47. TQWidget.__init__(self,parent,name)
  48. quit = TQPushButton('Quit',self,'quit')
  49. quit.setFont(TQFont('Times',18,TQFont.Bold))
  50. self.connect(quit,SIGNAL('clicked()'),tqApp,SLOT('quit()'))
  51. self.angle = LCDRange(self,'angle')
  52. self.angle.setRange(5,70)
  53. self.cannonField = CannonField(self,'cannonField')
  54. self.connect(self.angle,PYSIGNAL('valueChanged(int)'),self.cannonField.setAngle)
  55. self.connect(self.cannonField,PYSIGNAL('angleChanged(int)'),self.angle.setValue)
  56. grid = TQGridLayout(self,2,2,10)
  57. grid.addWidget(quit,0,0)
  58. grid.addWidget(self.angle,1,0,TQt.AlignTop)
  59. grid.addWidget(self.cannonField,1,1)
  60. grid.setColStretch(1,10)
  61. self.angle.setValue(60)
  62. self.angle.setFocus()
  63. a = TQApplication(sys.argv)
  64. w = MyWidget()
  65. w.setGeometry(100,100,500,355)
  66. a.setMainWidget(w)
  67. w.show()
  68. a.exec_loop()