42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
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import wx
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class Canvas(wx.Panel):
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def __init__(self, parent):
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wx.Panel.__init__(self, parent)
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self.Bind (wx.EVT_PAINT, self.OnPaint)
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self.bkg_brush = wx.Brush((190,190,255))
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self.v_pos = 100
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def OnPaint(self, evt):
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dc = wx.PaintDC(self)
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dc = wx.GCDC(dc)
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dc.SetBackground(self.bkg_brush)
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dc.Clear()
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dc.DrawEllipticArc(100, 200, 200, 200-self.v_pos, 90,270)
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dc.DrawLine(100, 100, 100, 300)
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class MyFrame(wx.Frame):
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def __init__(self):
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wx.Frame.__init__(self, None, title="DrawEllipticArc")
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self.SetSize((640,480))
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self.canvas = Canvas(self)
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self.slider = wx.Slider(self, minValue=0, maxValue=100)
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box = wx.BoxSizer(wx.VERTICAL)
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box.Add(self.canvas, 1, wx.EXPAND)
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box.Add(self.slider, 0, wx.EXPAND)
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self.SetSizer(box)
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self.Show()
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self.CenterOnScreen()
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self.slider.Bind (wx.EVT_SLIDER, self.OnSlide)
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def OnSlide(self, evt):
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self.canvas.v_pos = 100+self.slider.GetValue()
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self.canvas.Refresh(False)
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if __name__ == "__main__":
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app = wx.App(0)
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frame = MyFrame()
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app.MainLoop()
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