SIP4 python bindings for TQt
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tut10.py 3.9KB

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  1. #!/usr/bin/env python
  2. # TQt tutorial 10.
  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.f = 0
  28. self.setPalette(TQPalette(TQColor(250,250,200)))
  29. def angle(self):
  30. return self.ang
  31. def setAngle(self,degrees):
  32. if degrees < 5:
  33. degrees = 5
  34. if degrees > 70:
  35. degrees = 70
  36. if self.ang == degrees:
  37. return
  38. self.ang = degrees
  39. self.repaint(self.cannonRect(),0)
  40. self.emit(PYSIGNAL('angleChanged(int)'),(self.ang,))
  41. def force(self):
  42. return self.f
  43. def setForce(self,newton):
  44. if newton < 0:
  45. newton = 0
  46. if self.f == newton:
  47. return
  48. self.f = newton
  49. self.emit(PYSIGNAL('forceChanged(int)'),(self.f,))
  50. def paintEvent(self,ev):
  51. if not ev.rect().intersects(self.cannonRect()):
  52. return
  53. cr = self.cannonRect()
  54. pix = TQPixmap(cr.size())
  55. pix.fill(self,cr.topLeft())
  56. p = TQPainter(pix)
  57. p.setBrush(TQt.blue)
  58. p.setPen(TQt.NoPen)
  59. p.translate(0,pix.height() - 1)
  60. p.drawPie(TQRect(-35,-35,70,70),0,90 * 16)
  61. p.rotate(-self.ang)
  62. p.drawRect(TQRect(33,-4,15,8))
  63. p.end()
  64. p.begin(self)
  65. p.drawPixmap(cr.topLeft(),pix)
  66. def cannonRect(self):
  67. r = TQRect(0,0,50,50)
  68. r.moveBottomLeft(self.rect().bottomLeft())
  69. return r
  70. def sizePolicy(self):
  71. return TQSizePolicy(TQSizePolicy.Expanding,TQSizePolicy.Expanding)
  72. class MyWidget(TQWidget):
  73. def __init__(self,parent=None,name=None):
  74. TQWidget.__init__(self,parent,name)
  75. quit = TQPushButton('&Quit',self,'quit')
  76. quit.setFont(TQFont('Times',18,TQFont.Bold))
  77. self.connect(quit,SIGNAL('clicked()'),tqApp,SLOT('quit()'))
  78. self.angle = LCDRange(self,'angle')
  79. self.angle.setRange(5,70)
  80. self.force = LCDRange(self,'force')
  81. self.force.setRange(10,50)
  82. self.cannonField = CannonField(self,'cannonField')
  83. self.connect(self.angle,PYSIGNAL('valueChanged(int)'),self.cannonField.setAngle)
  84. self.connect(self.cannonField,PYSIGNAL('angleChanged(int)'),self.angle.setValue)
  85. self.connect(self.force,PYSIGNAL('valueChanged(int)'),self.cannonField.setForce)
  86. self.connect(self.cannonField,PYSIGNAL('forceChanged(int)'),self.force.setValue)
  87. grid = TQGridLayout(self,2,2,10)
  88. grid.addWidget(quit,0,0)
  89. grid.addWidget(self.cannonField,1,1)
  90. grid.setColStretch(1,10)
  91. leftBox = TQVBoxLayout()
  92. grid.addLayout(leftBox,1,0)
  93. leftBox.addWidget(self.angle)
  94. leftBox.addWidget(self.force)
  95. self.angle.setValue(60)
  96. self.force.setValue(25)
  97. self.angle.setFocus()
  98. TQApplication.setColorSpec(TQApplication.CustomColor)
  99. a = TQApplication(sys.argv)
  100. w = MyWidget()
  101. w.setGeometry(100,100,500,355)
  102. a.setMainWidget(w)
  103. w.show()
  104. a.exec_loop()