lib/python/Components/Converter/TemplatedMultiContent.py

   1 from Components.Converter.StringList import StringList
   2
   3 class TemplatedMultiContent(StringList):
   4         """Turns a python tuple list into a multi-content list which can be used in a listbox renderer."""
   5         def __init__(self, args):
   6                 StringList.__init__(self, args)
   7                 from enigma import eListboxPythonMultiContent, gFont, RT_HALIGN_LEFT, RT_HALIGN_CENTER, RT_HALIGN_RIGHT, RT_VALIGN_TOP, RT_VALIGN_CENTER, RT_VALIGN_BOTTOM, RT_WRAP
   8                 from Components.MultiContent import MultiContentEntryText, MultiContentEntryPixmap, MultiContentEntryPixmapAlphaTest, MultiContentEntryPixmapAlphaBlend, MultiContentTemplateColor, MultiContentEntryProgress
   9                 l = locals()
  10                 del l["self"] # cleanup locals a bit
  11                 del l["args"]
  12
  13                 self.active_style = None
  14                 self.template = eval(args, {}, l)
  15                 assert "fonts" in self.template
  16                 assert "itemHeight" in self.template
  17                 assert "template" in self.template or "templates" in self.template
  18                 assert "template" in self.template or "default" in self.template["templates"] # we need to have a default template
  19
  20                 if not "template" in self.template: # default template can be ["template"] or ["templates"]["default"]
  21                         self.template["template"] = self.template["templates"]["default"][1]
  22                         self.template["itemHeight"] = self.template["template"][0]
  23
  24         def changed(self, what):
  25                 if not self.content:
  26                         from enigma import eListboxPythonMultiContent
  27                         self.content = eListboxPythonMultiContent()
  28
  29                         # also setup fonts (also given by source)
  30                         index = 0
  31                         for f in self.template["fonts"]:
  32                                 self.content.setFont(index, f)
  33                                 index += 1
  34
  35                 # if only template changed, don't reload list
  36                 if what[0] == self.CHANGED_SPECIFIC and what[1] == "style":
  37                         pass
  38                 elif self.source:
  39                         self.content.setList(self.source.list)
  40
  41                 self.setTemplate()
  42                 self.downstream_elements.changed(what)
  43
  44         def setTemplate(self):
  45                 if self.source:
  46                         style = self.source.style
  47
  48                         if style == self.active_style:
  49                                 return
  50
  51                         # if skin defined "templates", that means that it defines multiple styles in a dict. template should still be a default
  52                         templates = self.template.get("templates")
  53                         template = self.template.get("template")
  54                         itemheight = self.template["itemHeight"]
  55                         selectionEnabled = self.template.get("selectionEnabled", True)
  56                         scrollbarMode = self.template.get("scrollbarMode", "showOnDemand")
  57
  58                         if templates and style and style in templates: # if we have a custom style defined in the source, and different templates in the skin, look it up
  59                                 template = templates[style][1]
  60                                 itemheight = templates[style][0]
  61                                 if len(templates[style]) > 2:
  62                                         selectionEnabled = templates[style][2]
  63                                 if len(templates[style]) > 3:
  64                                         scrollbarMode = templates[style][3]
  65
  66                         self.content.setTemplate(template)
  67                         self.content.setItemHeight(itemheight)
  68                         self.selectionEnabled = selectionEnabled
  69                         self.scrollbarMode = scrollbarMode
  70                         self.active_style = style