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
  20 #----------------------------------------------------------------------
  21
  22 class wxGenStaticText(wxPyControl):
  23     labelDelta = 1
  24
  25     def __init__(self, parent, ID, label,
  26                  pos = wxDefaultPosition, size = wxDefaultSize,
  27                  style = 0,
  28                  name = "genstattext"):
  29         wxPyControl.__init__(self, parent, ID, pos, size, style, wxDefaultValidator, name)
  30
  31         wxPyControl.SetLabel(self, label) # don't check wxST_NO_AUTORESIZE yet
  32         self.SetPosition(pos)
  33         font = parent.GetFont()
  34         if not font.Ok():
  35             font = wxSystemSettings_GetSystemFont(wxSYS_DEFAULT_GUI_FONT)
  36         wxPyControl.SetFont(self, font) # same here
  37
  38         clr = parent.GetBackgroundColour()
  39         if not clr.Ok():
  40             clr = wxSystemSettings_GetSystemColour(wxSYS_COLOUR_BTNFACE)
  41         self.SetBackgroundColour(clr)
  42
  43         clr = parent.GetForegroundColour()
  44         if not clr.Ok():
  45             clr = wxSystemSettings_GetSystemColour(wxSYS_COLOUR_BTNTEXT)
  46         self.SetForegroundColour(clr)
  47
  48         rw, rh = size
  49         bw, bh = self.GetBestSize()
  50         if rw == -1: rw = bw
  51         if rh == -1: rh = bh
  52         self.SetSize(wxSize(rw, rh))
  53
  54         EVT_ERASE_BACKGROUND(self, self.OnEraseBackground)
  55         EVT_PAINT(self,            self.OnPaint)
  56
  57
  58     def SetLabel(self, label):
  59         """
  60         Sets the static text label and updates the control's size to exactly
  61         fit the label unless the control has wxST_NO_AUTORESIZE flag.
  62         """
  63         wxPyControl.SetLabel(self, label)
  64         style = self.GetWindowStyleFlag()
  65         if not style & wxST_NO_AUTORESIZE:
  66             self.SetSize(self.GetBestSize())
  67         self.Refresh()
  68
  69
  70     def SetFont(self, font):
  71         """
  72         Sets the static text font and updates the control's size to exactly
  73         fit the label unless the control has wxST_NO_AUTORESIZE flag.
  74         """
  75         wxPyControl.SetFont(self, font)
  76         style = self.GetWindowStyleFlag()
  77         if not style & wxST_NO_AUTORESIZE:
  78             self.SetSize(self.GetBestSize())
  79         self.Refresh()
  80
  81
  82     def DoGetBestSize(self):
  83         """Overridden base class virtual.  Determines the best size of the
  84         button based on the label size."""
  85         label = self.GetLabel()
  86         maxWidth = totalHeight = 0
  87         for line in label.split('\n'):
  88             if line == '':
  89                 w, h = self.GetTextExtent('W')  # empty lines have height too
  90             else:
  91                 w, h = self.GetTextExtent(line)
  92             totalHeight += h
  93             maxWidth = max(maxWidth, w)
  94         return wxSize(maxWidth, totalHeight)
  95
  96
  97     def AcceptsFocus(self):
  98         """Overridden base class virtual."""
  99         return False
 100
 101
 102     def OnPaint(self, event):
 103         dc = wxBufferedPaintDC(self)
 104         #dc = wxPaintDC(self)
 105         width, height = self.GetClientSize()
 106         if not width or not height:
 107             return
 108         dc.SetBackground(wxBrush(self.GetBackgroundColour(), wxSOLID))
 109         dc.SetTextForeground(self.GetForegroundColour())
 110         dc.Clear()
 111         dc.SetFont(self.GetFont())
 112         label = self.GetLabel()
 113         style = self.GetWindowStyleFlag()
 114         x = y = 0
 115         for line in label.split('\n'):
 116             if line == '':
 117                 w, h = self.GetTextExtent('W')  # empty lines have height too
 118             else:
 119                 w, h = self.GetTextExtent(line)
 120             if style & wxALIGN_RIGHT:
 121                 x = width - w
 122             if style & wxALIGN_CENTER:
 123                 x = (width - w)/2
 124             dc.DrawText(line, x, y)
 125             y += h
 126
 127
 128     def OnEraseBackground(self, event):
 129         pass
 130
 131
 132
 133
 134 #----------------------------------------------------------------------
 135
 136