wxPython/wxPython/lib/stattext.py

   1 #----------------------------------------------------------------------
   2 # Name:        wxPython.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
  15 """
  16 """
  17
  18 from wxPython.wx import *
  19 import string
  20
  21 #----------------------------------------------------------------------
  22
  23 class wxGenStaticText(wxPyControl):
  24     labelDelta = 1
  25
  26     def __init__(self, parent, ID, label,
  27                  pos = wxDefaultPosition, size = wxDefaultSize,
  28                  style = 0,
  29                  name = "genstattext"):
  30         wxPyControl.__init__(self, parent, ID, pos, size, style, wxDefaultValidator, name)
  31
  32         wxPyControl.SetLabel(self, label) # don't check wxST_NO_AUTORESIZE yet
  33         self.SetPosition(pos)
  34         font = parent.GetFont()
  35         if not font.Ok():
  36             font = wxSystemSettings_GetSystemFont(wxSYS_DEFAULT_GUI_FONT)
  37         wxPyControl.SetFont(self, font) # same here
  38
  39         clr = parent.GetBackgroundColour()
  40         if not clr.Ok():
  41             clr = wxSystemSettings_GetSystemColour(wxSYS_COLOUR_BTNFACE)
  42         self.SetBackgroundColour(clr)
  43
  44         clr = parent.GetForegroundColour()
  45         if not clr.Ok():
  46             clr = wxSystemSettings_GetSystemColour(wxSYS_COLOUR_BTNTEXT)
  47         self.SetForegroundColour(clr)
  48
  49         rw, rh = size
  50         bw, bh = self.GetBestSize()
  51         if rw == -1: rw = bw
  52         if rh == -1: rh = bh
  53         self.SetSize(wxSize(rw, rh))
  54
  55         EVT_ERASE_BACKGROUND(self, self.OnEraseBackground)
  56         EVT_PAINT(self,            self.OnPaint)
  57
  58
  59     def SetLabel(self, label):
  60         """
  61         Sets the static text label and updates the control's size to exactly
  62         fit the label unless the control has wxST_NO_AUTORESIZE flag.
  63         """
  64         wxPyControl.SetLabel(self, label)
  65         style = self.GetWindowStyleFlag()
  66         if not style & wxST_NO_AUTORESIZE:
  67             self.SetSize(self.GetBestSize())
  68
  69     def SetFont(self, font):
  70         """
  71         Sets the static text font and updates the control's size to exactly
  72         fit the label unless the control has wxST_NO_AUTORESIZE flag.
  73         """
  74         wxPyControl.SetFont(self, font)
  75         style = self.GetWindowStyleFlag()
  76         if not style & wxST_NO_AUTORESIZE:
  77             self.SetSize(self.GetBestSize())
  78
  79
  80     def DoGetBestSize(self):
  81         """Overridden base class virtual.  Determines the best size of the
  82         button based on the label and bezel size."""
  83         label = self.GetLabel()
  84         maxWidth = totalHeight = 0
  85         for line in label.split('\n'):
  86             if line == '':
  87                 w, h = self.GetTextExtent('W')  # empty lines have height too
  88             else:
  89                 w, h = self.GetTextExtent(line)
  90             totalHeight += h
  91             maxWidth = max(maxWidth, w)
  92         return wxSize(maxWidth, totalHeight)
  93
  94
  95     def AcceptsFocus(self):
  96         """Overridden base class virtual."""
  97         return false
  98
  99
 100     def OnPaint(self, event):
 101         width, height = self.GetClientSize()
 102         dc = wxBufferedPaintDC(self)
 103         dc.SetBackground(wxBrush(self.GetBackgroundColour(), wxSOLID))
 104         dc.Clear()
 105         dc.SetFont(self.GetFont())
 106         label = self.GetLabel()
 107         style = self.GetWindowStyleFlag()
 108         x = y = 0
 109         for line in label.split('\n'):
 110             if line == '':
 111                 w, h = self.GetTextExtent('W')  # empty lines have height too
 112             else:
 113                 w, h = self.GetTextExtent(line)
 114             if style & wxALIGN_RIGHT:
 115                 x = width - w
 116             if style & wxALIGN_CENTER:
 117                 x = (width - w)/2
 118             dc.DrawText(line, x, y)
 119             y += h
 120
 121
 122     def OnEraseBackground(self, event):
 123         pass
 124
 125
 126
 127
 128 #----------------------------------------------------------------------
 129
 130