code.vuplus.com Git - vuplus_dvbapp/blob - skin.py

   1 from enigma import *
   2 import xml.dom.minidom
   3 from xml.dom import EMPTY_NAMESPACE
   4
   5 def dump(x, i=0):
   6         print " " * i + str(x)
   7         try:
   8                 for n in x.childNodes:
   9                         dump(n, i + 1)
  10         except:
  11                 None
  12
  13 dom = xml.dom.minidom.parseString(
  14         """
  15         <skin>
  16                 <screen name="mainMenu" position="300,100" size="300,300" title="real main menu">
  17                         <widget name="okbutton" position="10,190" size="280,50" font="Arial:20" valign="center" halign="center" />
  18                         <widget name="title" position="10,10" size="280,20" />
  19                         <widget name="menu" position="10,30" size="280,140" />
  20                 </screen>
  21                 <screen name="clockDisplay" position="300,100" size="300,300">
  22                         <widget name="okbutton" position="10,10" size="280,40" />
  23                         <widget name="title" position="10,120" size="280,50" />
  24                         <widget name="theClock" position="10,60" size="280,50" />
  25                 </screen>
  26                 <screen name="infoBar" position="80,350" size="540,150" title="InfoBar">
  27                         <widget name="CurrentTime" position="10,10" size="40,30" />
  28                         <widget name="ServiceName" position="50,20" size="200,30" />
  29                         <widget name="Event_Now" position="100,40" size="300,30" valign="top" halign="left" />
  30                         <widget name="Event_Next" position="100,90" size="300,30" valign="top" halign="left" />
  31                         <widget name="Event_Now_Duration" position="440,40" size="80,30" valign="top" halign="left" />
  32                         <widget name="Event_Next_Duration" position="440,90" size="80,30" valign="top" halign="left" />
  33                         <eLabel position="70,0" size="300,30" text=".oO skin Oo." font="Arial:20" />
  34 <!--                    <ePixmap position="70,0" size="300,30" pixmap="info-bg.png" /> -->
  35                 </screen>
  36                 <screen name="channelSelection" position="100,80" size="500,240" title="Channel Selection">
  37                         <widget name="list" position="20,50" size="300,150" />
  38                         <widget name="okbutton" position="340,50" size="140,30" />
  39                 </screen>
  40                 <screen name="serviceScan" position="150,100" size="300,200" title="Service Scan">
  41                         <widget name="scan_progress" position="10,10" size="280,50" />
  42                         <widget name="scan_state" position="10,60" size="280,30" />
  43                         <widget name="okbutton" position="10,100" size="280,40" />
  44                 </screen>
  45         </skin>
  46 """)
  47
  48 # filters all elements of childNode with the specified function
  49 # example: nodes = elementsWithTag(childNodes, lambda x: x == "bla")
  50 def elementsWithTag(el, tag):
  51         for x in el:
  52                 if x.nodeType != xml.dom.minidom.Element.nodeType:
  53                         continue
  54                 if tag(x.tagName):
  55                         yield x
  56
  57 def parsePosition(str):
  58         x, y = str.split(',')
  59         return ePoint(int(x), int(y))
  60
  61 def parseSize(str):
  62         x, y = str.split(',')
  63         return eSize(int(x), int(y))
  64
  65 def parseFont(str):
  66         name, size = str.split(':')
  67         return gFont(name, int(size))
  68
  69 def applyAttributes(guiObject, node):
  70         # walk all attributes
  71         for p in range(node.attributes.length):
  72                 a = node.attributes.item(p)
  73
  74                 # convert to string (was: unicode)
  75                 attrib = str(a.name)
  76                 # TODO: proper UTF8 translation?! (for value)
  77                 # TODO: localization? as in e1?
  78                 value = str(a.value)
  79
  80                 # and set attributes
  81                 try:
  82                         if attrib == 'position':
  83                                 guiObject.move(parsePosition(value))
  84                         elif attrib == 'size':
  85                                 guiObject.resize(parseSize(value))
  86                         elif attrib == 'title':
  87                                 guiObject.setTitle(value)
  88                         elif attrib == 'text':
  89                                 guiObject.setText(value)
  90                         elif attrib == 'font':
  91                                 guiObject.setFont(parseFont(value))
  92                         elif attrib == "pixmap":
  93                                 ptr = gPixmapPtr()
  94                                 if loadPNG(ptr, value):
  95                                         raise "loading PNG failed!"
  96                                 guiObject.setPixmap(ptr.__deref__())
  97                         elif attrib == "valign":
  98                                 try:
  99                                         guiObject.setVAlign(
 100                                                 { "top": guiObject.alignTop,
 101                                                         "center": guiObject.alignCenter,
 102                                                         "bottom": guiObject.alignBottom
 103                                                 }[value])
 104                                 except KeyError:
 105                                         print "valign must be either top, center or bottom!"
 106                         elif attrib == "halign":
 107                                 try:
 108                                         guiObject.setHAlign(
 109                                                 { "left": guiObject.alignLeft,
 110                                                         "center": guiObject.alignCenter,
 111                                                         "right": guiObject.alignRight,
 112                                                         "block": guiObject.alignBlock
 113                                                 }[value])
 114                                 except KeyError:
 115                                         print "halign must be either left, center, right or block!"
 116                         elif attrib != 'name':
 117                                 print "unsupported attribute " + attrib + "=" + value
 118                 except AttributeError:
 119                         print "widget %s (%s) doesn't support attribute %s!" % ("", guiObject.__class__.__name__, attrib)
 120
 121 def applyGUIskin(screen, skin, name):
 122         myscreen = None
 123
 124         # first, find the corresponding screen element
 125         skin = dom.childNodes[0]
 126         assert skin.tagName == "skin", "root element in skin must be 'skin'!"
 127
 128         for x in elementsWithTag(skin.childNodes, lambda x: x == "screen"):
 129                 if x.getAttribute('name') == name:
 130                         myscreen = x
 131         del skin
 132
 133         assert myscreen != None, "no skin for screen '" + name + "' found!"
 134
 135         applyAttributes(screen.instance, myscreen)
 136
 137         # now walk all widgets
 138         for widget in elementsWithTag(myscreen.childNodes, lambda x: x == "widget"):
 139                 wname = widget.getAttribute('name')
 140                 if wname == None:
 141                         print "widget has no name!"
 142                         continue
 143
 144                 # get corresponding gui object
 145                 try:
 146                         guiObject = screen[wname].instance
 147                 except:
 148                         raise str("component with name '" + wname + "' was not found in skin of screen '" + name + "'!")
 149
 150                 applyAttributes(guiObject, widget)
 151
 152         # now walk additional objects
 153         for widget in elementsWithTag(myscreen.childNodes, lambda x: x != "widget"):
 154                 if widget.tagName == "eLabel":
 155                         guiObject = eLabel(screen.instance)
 156                 elif widget.tagName == "ePixmap":
 157                         guiObject = ePixmap(screen.instance)
 158                 else:
 159                         raise str("unsupported stuff : %s" % widget.tagName)
 160
 161                 applyAttributes(guiObject, widget)
 162                 guiObject.thisown = 0