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.SetPosition(pos)
  36         font = parent.GetFont()
  37         if not font.Ok():
  38             font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
  39         wx.PyControl.SetFont(self, font) # same here
  40
  41         self.defBackClr = parent.GetBackgroundColour()
  42         if not self.defBackClr.Ok():
  43             self.defBackClr = wx.SystemSettings.GetColour(wx.SYS_COLOUR_3DFACE)
  44         self.SetBackgroundColour(self.defBackClr)
  45
  46         clr = parent.GetForegroundColour()
  47         if not clr.Ok():
  48             clr = wx.SystemSettings.GetColour(wx.SYS_COLOUR_BTNTEXT)
  49         self.SetForegroundColour(clr)
  50
  51         rw, rh = size
  52         bw, bh = self.GetBestSize()
  53         if rw == -1: rw = bw
  54         if rh == -1: rh = bh
  55         self.SetSize(wx.Size(rw, rh))
  56
  57         self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
  58         self.Bind(wx.EVT_PAINT,            self.OnPaint)
  59
  60
  61     def SetLabel(self, label):
  62         """
  63         Sets the static text label and updates the control's size to exactly
  64         fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
  65         """
  66         wx.PyControl.SetLabel(self, label)
  67         style = self.GetWindowStyleFlag()
  68         if not style & wx.ST_NO_AUTORESIZE:
  69             self.SetSize(self.GetBestSize())
  70         self.Refresh()
  71
  72
  73     def SetFont(self, font):
  74         """
  75         Sets the static text font and updates the control's size to exactly
  76         fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
  77         """
  78         wx.PyControl.SetFont(self, font)
  79         style = self.GetWindowStyleFlag()
  80         if not style & wx.ST_NO_AUTORESIZE:
  81             self.SetSize(self.GetBestSize())
  82         self.Refresh()
  83
  84
  85     def DoGetBestSize(self):
  86         """Overridden base class virtual.  Determines the best size of the
  87         button based on the label size."""
  88         label = self.GetLabel()
  89         maxWidth = totalHeight = 0
  90         for line in label.split('\n'):
  91             if line == '':
  92                 w, h = self.GetTextExtent('W')  # empty lines have height too
  93             else:
  94                 w, h = self.GetTextExtent(line)
  95             totalHeight += h
  96             maxWidth = max(maxWidth, w)
  97         return wx.Size(maxWidth, totalHeight)
  98
  99
 100     def AcceptsFocus(self):
 101         """Overridden base class virtual."""
 102         return False
 103
 104
 105     def OnPaint(self, event):
 106         dc = wx.BufferedPaintDC(self)
 107         #dc = wx.PaintDC(self)
 108         width, height = self.GetClientSize()
 109         if not width or not height:
 110             return
 111
 112         clr = self.GetBackgroundColour()
 113         backBrush = wx.Brush(clr, wx.SOLID)
 114         if wx.Platform == "__WXMAC__" and clr == self.defBackClr:
 115             # if colour is still the default then use the striped background on Mac
 116             backBrush.SetMacTheme(1) # 1 == kThemeBrushDialogBackgroundActive
 117         dc.SetBackground(backBrush)
 118
 119         dc.SetTextForeground(self.GetForegroundColour())
 120         dc.Clear()
 121         dc.SetFont(self.GetFont())
 122         label = self.GetLabel()
 123         style = self.GetWindowStyleFlag()
 124         x = y = 0
 125         for line in label.split('\n'):
 126             if line == '':
 127                 w, h = self.GetTextExtent('W')  # empty lines have height too
 128             else:
 129                 w, h = self.GetTextExtent(line)
 130             if style & wx.ALIGN_RIGHT:
 131                 x = width - w
 132             if style & wx.ALIGN_CENTER:
 133                 x = (width - w)/2
 134             dc.DrawText(line, (x, y))
 135             y += h
 136
 137
 138     def OnEraseBackground(self, event):
 139         pass
 140
 141
 142
 143
 144 #----------------------------------------------------------------------
 145
 146