wxPython/wx/lib/stattext.py

   1 #----------------------------------------------------------------------
   2 # Name:        wx.lib.stattext
   3 # Purpose:     A generic wxGenStaticText class.  Using this should
   4 #              eliminate some of the platform differences in wxStaticText,
   5 #              such as background colours and mouse sensitivity.
   6 #
   7 # Author:      Robin Dunn
   8 #
   9 # Created:     8-July-2002
  10 # RCS-ID:      $Id$
  11 # Copyright:   (c) 2002 by Total Control Software
  12 # Licence:     wxWindows license
  13 #----------------------------------------------------------------------
  14 # 12/12/2003 - Jeff Grimmett (grimmtooth@softhome.net)
  15 #
  16 # o 2.5 compatability update.
  17 # o Untested.
  18 #
  19
  20 import wx
  21
  22 #----------------------------------------------------------------------
  23
  24 class GenStaticText(wx.PyControl):
  25     labelDelta = 1
  26
  27     def __init__(self, parent, ID, label,
  28                  pos = wx.DefaultPosition, size = wx.DefaultSize,
  29                  style = 0,
  30                  name = "genstattext"):
  31         wx.PyControl.__init__(self, parent, ID, pos, size, style|wx.NO_BORDER,
  32                              wx.DefaultValidator, name)
  33
  34         wx.PyControl.SetLabel(self, label) # don't check wx.ST_NO_AUTORESIZE yet
  35         self.defBackClr = self.GetBackgroundColour()
  36         self.InheritAttributes()
  37         self.SetBestFittingSize(size)
  38
  39         self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
  40         self.Bind(wx.EVT_PAINT,            self.OnPaint)
  41
  42
  43     def SetLabel(self, label):
  44         """
  45         Sets the static text label and updates the control's size to exactly
  46         fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
  47         """
  48         wx.PyControl.SetLabel(self, label)
  49         style = self.GetWindowStyleFlag()
  50         if not style & wx.ST_NO_AUTORESIZE:
  51             best = self.GetBestSize()
  52             self.SetSize(best)
  53             self.SetMinSize(best)
  54         self.Refresh()
  55
  56
  57     def SetFont(self, font):
  58         """
  59         Sets the static text font and updates the control's size to exactly
  60         fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
  61         """
  62         wx.PyControl.SetFont(self, font)
  63         style = self.GetWindowStyleFlag()
  64         if not style & wx.ST_NO_AUTORESIZE:
  65             best = self.GetBestSize()
  66             self.SetSize(best)
  67             self.SetMinSize(best)
  68         self.Refresh()
  69
  70
  71     def DoGetBestSize(self):
  72         """
  73         Overridden base class virtual.  Determines the best size of
  74         the button based on the label size.
  75         """
  76         label = self.GetLabel()
  77         maxWidth = totalHeight = 0
  78         for line in label.split('\n'):
  79             if line == '':
  80                 w, h = self.GetTextExtent('W')  # empty lines have height too
  81             else:
  82                 w, h = self.GetTextExtent(line)
  83             totalHeight += h
  84             maxWidth = max(maxWidth, w)
  85         return wx.Size(maxWidth, totalHeight)
  86
  87
  88     def AcceptsFocus(self):
  89         """Overridden base class virtual."""
  90         return False
  91
  92
  93     def GetDefaultAttributes(self):
  94         """
  95         Overridden base class virtual.  By default we should use
  96         the same font/colour attributes as the native StaticText.
  97         """
  98         return wx.StaticText.GetClassDefaultAttributes()
  99
 100
 101     def ShouldInheritColours(self):
 102         """
 103         Overridden base class virtual.  If the parent has non-default
 104         colours then we want this control to inherit them.
 105         """
 106         return True
 107
 108
 109     def OnPaint(self, event):
 110         dc = wx.BufferedPaintDC(self)
 111         #dc = wx.PaintDC(self)
 112         width, height = self.GetClientSize()
 113         if not width or not height:
 114             return
 115
 116         clr = self.GetBackgroundColour()
 117         backBrush = wx.Brush(clr, wx.SOLID)
 118         if wx.Platform == "__WXMAC__" and clr == self.defBackClr:
 119             # if colour is still the default then use the striped background on Mac
 120             backBrush.MacSetTheme(1) # 1 == kThemeBrushDialogBackgroundActive
 121         dc.SetBackground(backBrush)
 122
 123         dc.SetTextForeground(self.GetForegroundColour())
 124         dc.Clear()
 125         dc.SetFont(self.GetFont())
 126         label = self.GetLabel()
 127         style = self.GetWindowStyleFlag()
 128         x = y = 0
 129         for line in label.split('\n'):
 130             if line == '':
 131                 w, h = self.GetTextExtent('W')  # empty lines have height too
 132             else:
 133                 w, h = self.GetTextExtent(line)
 134             if style & wx.ALIGN_RIGHT:
 135                 x = width - w
 136             if style & wx.ALIGN_CENTER:
 137                 x = (width - w)/2
 138             dc.DrawText(line, x, y)
 139             y += h
 140
 141
 142     def OnEraseBackground(self, event):
 143         pass
 144
 145
 146
 147
 148 #----------------------------------------------------------------------
 149
 150