src/pgu/gui/style.py

   1 """
   2 """
   3
   4 import pguglobals
   5
   6 class Style:
   7     """The class used by widget for the widget.style
   8
   9     <p>This object is used mainly as a dictionary, accessed via <tt>widget.style.attr</tt>, as opposed to
  10     <tt>widget.style['attr']</tt>.  It automatically grabs information from the theme via <tt>value = theme.get(widget.cls,widget.pcls,attr)</tt>.</p>
  11
  12     """
  13     def __init__(self,o,dict):
  14         self.obj = o
  15         for k,v in dict.items(): self.__dict__[k]=v
  16         self._cache = {}
  17
  18     def __getattr__(self,k):
  19         key = self.obj.cls,self.obj.pcls,k
  20         if key not in self._cache:
  21             self._cache[key] = Style_get(self.obj.cls,self.obj.pcls,k)
  22         v = self._cache[key]
  23         if k in (
  24             'border_top','border_right','border_bottom','border_left',
  25             'padding_top','padding_right','padding_bottom','padding_left',
  26             'margin_top','margin_right','margin_bottom','margin_left',
  27             'align','valign','width','height',
  28             ): self.__dict__[k] = v
  29         return v
  30
  31     def __setattr__(self,k,v):
  32         self.__dict__[k] = v
  33
  34
  35 Style_cache = {}
  36 def Style_get(cls,pcls,k):
  37     key = cls,pcls,k
  38     if key not in Style_cache:
  39         Style_cache[key] = pguglobals.app.theme.get(cls,pcls,k)
  40     return Style_cache[key]
  41