metapie/navigator.py

   1 ############################################################################
   2 #   Copyright (C) 2005 by Reithinger GmbH
   3 #   mreithinger@web.de
   4 #
   5 #   This file is part of metapie.
   6 #
   7 #   metapie is free software; you can redistribute it and/or modify
   8 #   it under the terms of the GNU General Public License as published by
   9 #   the Free Software Foundation; either version 2 of the License, or
  10 #   (at your option) any later version.
  11 #
  12 #   pyplan is distributed in the hope that it will be useful,
  13 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #   GNU General Public License for more details.
  16 #
  17 #   You should have received a copy of the GNU General Public License
  18 #   along with this program; if not, write to the
  19 #   Free Software Foundation, Inc.,
  20 #   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 ############################################################################
  22
  23
  24 SIBLING_ABOVE = 1
  25 SIBLING_BELOW = 2
  26
  27
  28 class Model(object):
  29     #__title__ = None
  30     #__bitmap__ = None
  31
  32
  33     def register(self):
  34         abstract
  35
  36
  37     def accept_sibling(self, sibling):
  38         return False
  39
  40
  41
  42 class View(object):
  43     #__title__ = None
  44     #__bitmap__ = None
  45     #__height__ = None
  46
  47
  48     def accept_sibling(self, sibling):
  49         """
  50         Called by the controller, to ask if a view
  51         accepts a sibling beside itself.
  52         Return Values:
  53         False: I do not accept the sibling (the sibling will be also asked)
  54         SIBLING_BELOW: the sibling should appear below me with a sash between us
  55         SIBLING_ABOVE: dito but above
  56         """
  57         return False
  58
  59
  60     def is_visible(self):
  61         return self.IsShown() and self.GetParent().IsShown()
  62
  63
  64     def become_visible(self):
  65         """
  66         This function is called, when the view is about to become visible
  67         """
  68
  69
  70 def get_title(obj):
  71     title = getattr(obj, "__title__", None)
  72     if not title:
  73         title = str(obj)
  74     elif callable(title):
  75         title = title()
  76
  77     return title
  78
  79
  80 def get_height(obj):
  81     height = getattr(obj, "__height__", None)
  82     if callable(height):
  83         height = height()
  84
  85     return height
  86
  87
  88
  89 def get_bitmap(obj):
  90     bitmap = getattr(obj, "__bitmap__", None)
  91     if not bitmap:
  92         return None
  93     elif callable(bitmap):
  94         bitmap = bitmap()
  95
  96     return bitmap