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105 lines
3.1 KiB
105 lines
3.1 KiB
#!/usr/bin/env python
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# TQt tutorial 9.
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import sys
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from PyTQt import tqt
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class LCDRange(tqt.TQVBox):
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def __init__(self, parent=None, name=None):
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tqt.TQVBox.__init__(self, parent, name)
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lcd = tqt.TQLCDNumber(2, self, "lcd")
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self.slider = tqt.TQSlider(tqt.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, tqt.TQ_SIGNAL("valueChanged(int)"), lcd, tqt.TQ_SLOT("display(int)"))
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self.connect(self.slider, tqt.TQ_SIGNAL("valueChanged(int)"), self, tqt.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(tqt.TQWidget):
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def __init__(self, parent=None, name=None):
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tqt.TQWidget.__init__(self, parent, name)
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self.ang = 45
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self.setPalette(tqt.TQPalette(tqt.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()
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self.emit(tqt.PYSIGNAL("angleChanged(int)"), (self.ang, ))
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def paintEvent(self, ev):
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p = tqt.TQPainter(self)
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p.setBrush(tqt.TQt.blue)
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p.setPen(tqt.TQt.NoPen)
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p.translate(0, self.rect().bottom())
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p.drawPie(tqt.TQRect(-35, -35, 70, 70), 0, 90 * 16)
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p.rotate(-self.ang)
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p.drawRect(tqt.TQRect(33, -4, 15, 8))
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def sizePolicy(self):
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return tqt.TQSizePolicy(tqt.TQSizePolicy.Expanding, tqt.TQSizePolicy.Expanding)
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class MyWidget(tqt.TQWidget):
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def __init__(self, parent=None, name=None):
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tqt.TQWidget.__init__(self, parent, name)
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quit = tqt.TQPushButton("&Quit", self, "quit")
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quit.setFont(tqt.TQFont("Times", 18, tqt.TQFont.Bold))
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self.connect(quit, tqt.TQ_SIGNAL("clicked()"), tqt.tqApp, tqt.TQ_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.cannonField = CannonField(self, "cannonField")
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self.connect(self.angle, tqt.PYSIGNAL("valueChanged(int)"), self.cannonField.setAngle)
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self.connect(self.cannonField, tqt.PYSIGNAL("angleChanged(int)"), self.angle.setValue)
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grid = tqt.TQGridLayout(self, 2, 2, 10)
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grid.addWidget(quit, 0, 0)
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grid.addWidget(self.angle, 1, 0, tqt.TQt.AlignTop)
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grid.addWidget(self.cannonField, 1, 1)
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grid.setColStretch(1, 10)
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self.angle.setValue(60)
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self.angle.setFocus()
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tqt.TQApplication.setColorSpec(tqt.TQApplication.CustomColor)
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a = tqt.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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sys.exit(a.exec_loop())
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