CalculatorDemo.py 文件源码

def __init__(self, *args, **kwargs):
        wx.Panel.__init__(self, *args, **kwargs)
        sizer = wx.BoxSizer(wx.VERTICAL) # Main vertical sizer

        self.display = wx.ComboBox(self) # Current calculation
        sizer.Add(self.display, 0, wx.EXPAND|wx.BOTTOM, 8) # Add to main sizer

        # [7][8][9][/] 
        # [4][5][6][*]
        # [1][2][3][-]
        # [0][.][C][+]
        gsizer = wx.GridSizer(4, 4, 8, 8)
        for row in (("7", "8", "9", "/"),
                    ("4", "5", "6", "*"),
                    ("1", "2", "3", "-"),
                    ("0", ".", "C", "+")):
            for label in row:
                b = wx.Button(self, label=label, size=(40,-1))
                gsizer.Add(b)
                b.Bind(wx.EVT_BUTTON, self.OnButton)
        sizer.Add(gsizer, 1, wx.EXPAND)

        # [    =     ]
        b = wx.Button(self, label="=")
        b.Bind(wx.EVT_BUTTON, self.OnButton)
        sizer.Add(b, 0, wx.EXPAND|wx.ALL, 8)
        self.equal = b

        # Set sizer and center
        self.SetSizerAndFit(sizer)