wxWidgets/wxPython/samples/wxPIA_book/Chapter-11/blockwindow.py

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import wx
class BlockWindow(wx.Panel):
def __init__(self, parent, ID=-1, label="",
pos=wx.DefaultPosition, size=(100, 25)):
wx.Panel.__init__(self, parent, ID, pos, size,
wx.RAISED_BORDER, label)
self.label = label
self.SetBackgroundColour("white")
self.SetMinSize(size)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def OnPaint(self, evt):
sz = self.GetClientSize()
dc = wx.PaintDC(self)
w,h = dc.GetTextExtent(self.label)
dc.SetFont(self.GetFont())
dc.DrawText(self.label, (sz.width-w)/2, (sz.height-h)/2)