wxPython/wx/lib/rightalign.py

   1 # -*- coding: iso-8859-1 -*-
   2 #----------------------------------------------------------------------
   3 # Name:        wxPython.lib.rightalign
   4 # Purpose:     A class derived from wxTextCtrl that aligns the text
   5 #              on the right side of the control, (except when editing.)
   6 #
   7 # Author:      Josu Oyanguren
   8 #
   9 # Created:     19-October-2001
  10 # RCS-ID:      $Id$
  11 # Copyright:   (c) 2001 by Total Control Software
  12 # Licence:     wxWindows license
  13 #----------------------------------------------------------------------
  14 # 12/11/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  15 #
  16 # o 2.5 compatability update.
  17 # o Added deprecation warning.
  18 #
  19 # 12/20/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  20 #
  21 # o wxRightTextCtrl -> RightTextCtrl
  22 #
  23
  24 """
  25 Some time ago, I asked about how to right-align
  26 wxTextCtrls. Answer was that it is not supported. I forgot it.
  27
  28 Just a week ago, one of my clients asked me to have numbers right
  29 aligned. (Indeed it was that numbers MUST be right aligned).
  30
  31 So the game begun. Hacking, hacking, ...
  32
  33 At last, i succeed. Here is some code that someone may find
  34 useful. ubRightTextCtrl is right-aligned when you are not editing, but
  35 left-aligned if it has focus.
  36
  37 Hope this can help someone, as much as this list helps me.
  38
  39 Josu Oyanguren
  40 Ubera Servicios Informaticos.
  41
  42
  43 P.S.  This only works well on wxMSW.
  44 """
  45
  46 import  warnings
  47 import  wx
  48
  49 #----------------------------------------------------------------------
  50
  51 warningmsg = r"""\
  52
  53 ##############################################################\
  54 # THIS MODULE IS DEPRECATED                                   |
  55 #                                                             |
  56 # This control still functions, but it is deprecated because  |
  57 # wx.TextCtrl now supports the wx.TE_RIGHT style flag         |
  58 ##############################################################/
  59
  60
  61 """
  62
  63 warnings.warn(warningmsg, DeprecationWarning, stacklevel=2)
  64
  65 #----------------------------------------------------------------------
  66
  67 class RightTextCtrl(wx.TextCtrl):
  68     def __init__(self, parent, id, *args, **kwargs):
  69         wx.TextCtrl.__init__(self, parent, id, *args, **kwargs)
  70         self.Bind(wx.EVT_KILL_FOCUS, self.OnKillFocus)
  71         self.Bind(wx.EVT_PAINT, self.OnPaint)
  72
  73     def OnPaint(self, event):
  74         dc = wx.PaintDC(self)
  75         dc.SetFont(self.GetFont())
  76         dc.Clear()
  77         text = self.GetValue()
  78         textwidth, textheight = dc.GetTextExtent(text)
  79         dcwidth, dcheight = self.GetClientSize()
  80
  81         y = (dcheight - textheight) / 2
  82         x = dcwidth - textwidth - 2
  83
  84         if self.IsEnabled():
  85             fclr = self.GetForegroundColour()
  86         else:
  87             fclr = wx.SystemSettings_GetColour(wx.SYS_COLOUR_GRAYTEXT)
  88
  89         dc.SetTextForeground(fclr)
  90
  91         dc.SetClippingRegion((0, 0), (dcwidth, dcheight))
  92         dc.DrawText(text, (x, y))
  93
  94         if x < 0:
  95             toofat = '...'
  96             markwidth = dc.GetTextExtent(toofat)[0]
  97             dc.SetPen(wx.Pen(dc.GetBackground().GetColour(), 1, wx.SOLID ))
  98             dc.DrawRectangle((0,0), (markwidth, dcheight))
  99             dc.SetPen(wx.Pen(wx.RED, 1, wx.SOLID ))
 100             dc.SetBrush(wx.TRANSPARENT_BRUSH)
 101             dc.DrawRectangle((1, 1), (dcwidth-2, dcheight-2))
 102             dc.DrawText(toofat, (1, y))
 103
 104
 105     def OnKillFocus(self, event):
 106         if not self.GetParent(): return
 107         self.Refresh()
 108         event.Skip()
 109