skin.py

   1 from enigma import *
   2 import xml.dom.minidom
   3 from xml.dom import EMPTY_NAMESPACE
   4
   5 from Tools.XMLTools import elementsWithTag, mergeText
   6
   7 colorNames = dict()
   8
   9 def dump(x, i=0):
  10         print " " * i + str(x)
  11         try:
  12                 for n in x.childNodes:
  13                         dump(n, i + 1)
  14         except:
  15                 None
  16
  17 # read the skin
  18 try:
  19         # first we search in the current path
  20         skinfile = file('data/skin.xml', 'r')
  21 except:
  22         # if not found in the current path, we use the global datadir-path
  23         skinfile = file('/usr/share/enigma2/skin.xml', 'r')
  24 dom = xml.dom.minidom.parseString(skinfile.read())
  25 skinfile.close()
  26
  27
  28 def parsePosition(str):
  29         x, y = str.split(',')
  30         return ePoint(int(x), int(y))
  31
  32 def parseSize(str):
  33         x, y = str.split(',')
  34         return eSize(int(x), int(y))
  35
  36 def parseFont(str):
  37         name, size = str.split(';')
  38         return gFont(name, int(size))
  39
  40 def parseColor(str):
  41         if str[0] != '#':
  42                 try:
  43                         return colorNames[str]
  44                 except:
  45                         raise ("color '%s' must be #aarrggbb or valid named color" % (str))
  46         return gRGB(int(str[1:], 0x10))
  47
  48 def collectAttributes(skinAttributes, node):
  49         # walk all attributes
  50         for p in range(node.attributes.length):
  51                 a = node.attributes.item(p)
  52
  53                 # convert to string (was: unicode)
  54                 attrib = str(a.name)
  55                 # TODO: proper UTF8 translation?! (for value)
  56                 # TODO: localization? as in e1?
  57                 value = str(a.value)
  58
  59                 skinAttributes.append((attrib, value))
  60
  61 def applySingleAttribute(guiObject, desktop, attrib, value):
  62         # and set attributes
  63         try:
  64                 if attrib == 'position':
  65                         guiObject.move(parsePosition(value))
  66                 elif attrib == 'size':
  67                         guiObject.resize(parseSize(value))
  68                 elif attrib == 'title':
  69                         guiObject.setTitle(_(value))
  70                 elif attrib == 'text':
  71                         guiObject.setText(value)
  72                 elif attrib == 'font':
  73                         guiObject.setFont(parseFont(value))
  74                 elif attrib == 'zPosition':
  75                         guiObject.setZPosition(int(value))
  76                 elif attrib == "pixmap":
  77                         ptr = gPixmapPtr()
  78                         if loadPNG(ptr, value):
  79                                 raise "loading PNG failed!"
  80                         x = ptr
  81                         ptr = ptr.__deref__()
  82                         desktop.makeCompatiblePixmap(ptr)
  83                         guiObject.setPixmap(ptr)
  84                         # guiObject.setPixmapFromFile(value)
  85                 elif attrib == "alphatest": # used by ePixmap
  86                         guiObject.setAlphatest(
  87                                 { "on": True,
  88                                   "off": False
  89                                 }[value])
  90                 elif attrib == "orientation": # used by eSlider
  91                         try:
  92                                 guiObject.setOrientation(
  93                                         { "orVertical": guiObject.orVertical,
  94                                                 "orHorizontal": guiObject.orHorizontal
  95                                         }[value])
  96                         except KeyError:
  97                                 print "oprientation must be either orVertical or orHorizontal!"
  98                 elif attrib == "valign":
  99                         try:
 100                                 guiObject.setVAlign(
 101                                         { "top": guiObject.alignTop,
 102                                                 "center": guiObject.alignCenter,
 103                                                 "bottom": guiObject.alignBottom
 104                                         }[value])
 105                         except KeyError:
 106                                 print "valign must be either top, center or bottom!"
 107                 elif attrib == "halign":
 108                         try:
 109                                 guiObject.setHAlign(
 110                                         { "left": guiObject.alignLeft,
 111                                                 "center": guiObject.alignCenter,
 112                                                 "right": guiObject.alignRight,
 113                                                 "block": guiObject.alignBlock
 114                                         }[value])
 115                         except KeyError:
 116                                 print "halign must be either left, center, right or block!"
 117                 elif attrib == "flags":
 118                         flags = value.split(',')
 119                         for f in flags:
 120                                 try:
 121                                         fv = eWindow.__dict__[f]
 122                                         guiObject.setFlag(fv)
 123                                 except KeyError:
 124                                         print "illegal flag %s!" % f
 125                 elif attrib == "backgroundColor":
 126                         guiObject.setBackgroundColor(parseColor(value))
 127                 elif attrib == "foregroundColor":
 128                         guiObject.setForegroundColor(parseColor(value))
 129                 elif attrib == "selectionDisabled":
 130                         guiObject.setSelectionEnable(0)
 131                 elif attrib == "transparent":
 132                         guiObject.setTransparent(int(value))
 133                 elif attrib != 'name':
 134                         print "unsupported attribute " + attrib + "=" + value
 135         except int:
 136 # AttributeError:
 137                 print "widget %s (%s) doesn't support attribute %s!" % ("", guiObject.__class__.__name__, attrib)
 138
 139 def applyAllAttributes(guiObject, desktop, attributes):
 140         for (attrib, value) in attributes:
 141                 applySingleAttribute(guiObject, desktop, attrib, value)
 142
 143 def loadSkin(desktop):
 144         print "loading skin..."
 145
 146         def getPNG(x):
 147                 g = gPixmapPtr()
 148                 loadPNG(g, x)
 149                 g = g.grabRef()
 150                 return g
 151
 152         skin = dom.childNodes[0]
 153         assert skin.tagName == "skin", "root element in skin must be 'skin'!"
 154
 155         for c in elementsWithTag(skin.childNodes, "colors"):
 156                 for color in elementsWithTag(c.childNodes, "color"):
 157                         name = str(color.getAttribute("name"))
 158                         color = str(color.getAttribute("value"))
 159
 160                         if not len(color):
 161                                 raise ("need color and name, got %s %s" % (name, color))
 162
 163                         colorNames[name] = parseColor(color)
 164
 165         for windowstyle in elementsWithTag(skin.childNodes, "windowstyle"):
 166                 style = eWindowStyleSkinned()
 167
 168                 style.setTitleFont(gFont("Arial", 20));
 169                 style.setTitleOffset(eSize(20, 5));
 170
 171                 for borderset in elementsWithTag(windowstyle.childNodes, "borderset"):
 172                         bsName = str(borderset.getAttribute("name"))
 173                         for pixmap in elementsWithTag(borderset.childNodes, "pixmap"):
 174                                 bpName = str(pixmap.getAttribute("pos"))
 175                                 filename = str(pixmap.getAttribute("filename"))
 176
 177                                 png = getPNG(filename)
 178
 179                                 # adapt palette
 180                                 desktop.makeCompatiblePixmap(png)
 181                                 style.setPixmap(eWindowStyleSkinned.__dict__[bsName], eWindowStyleSkinned.__dict__[bpName], png)
 182
 183                 for color in elementsWithTag(windowstyle.childNodes, "color"):
 184                         type = str(color.getAttribute("name"))
 185                         color = parseColor(color.getAttribute("color"))
 186
 187                         try:
 188                                 style.setColor(eWindowStyleSkinned.__dict__["col" + type], color)
 189                         except:
 190                                 raise ("Unknown color %s" % (type))
 191
 192                 x = eWindowStyleManagerPtr()
 193                 eWindowStyleManager.getInstance(x)
 194                 x.setStyle(style)
 195
 196 def readSkin(screen, skin, name, desktop):
 197         myscreen = None
 198
 199         # first, find the corresponding screen element
 200         skin = dom.childNodes[0]
 201
 202         for x in elementsWithTag(skin.childNodes, "screen"):
 203                 if x.getAttribute('name') == name:
 204                         myscreen = x
 205         del skin
 206
 207         if myscreen is None:
 208                 # try embedded skin
 209                 print screen.__dict__
 210                 if "parsedSkin" in screen.__dict__:
 211                         myscreen = screen.parsedSkin
 212                 elif "skin" in screen.__dict__:
 213                         myscreen = screen.parsedSkin = xml.dom.minidom.parseString(screen.skin).childNodes[0]
 214
 215         assert myscreen is not None, "no skin for screen '" + name + "' found!"
 216
 217         screen.skinAttributes = [ ]
 218         collectAttributes(screen.skinAttributes, myscreen)
 219
 220         screen.additionalWidgets = [ ]
 221
 222         # now walk all widgets
 223         for widget in elementsWithTag(myscreen.childNodes, "widget"):
 224                 wname = widget.getAttribute('name')
 225                 if wname == None:
 226                         print "widget has no name!"
 227                         continue
 228
 229                 # get corresponding gui object
 230                 try:
 231                         attributes = screen[wname].skinAttributes = [ ]
 232                 except:
 233                         raise str("component with name '" + wname + "' was not found in skin of screen '" + name + "'!")
 234
 235                 collectAttributes(attributes, widget)
 236
 237         # now walk additional objects
 238         for widget in elementsWithTag(myscreen.childNodes, lambda x: x != "widget"):
 239                 if widget.tagName == "applet":
 240                         codeText = mergeText(widget.childNodes).strip()
 241                         type = widget.getAttribute('type')
 242
 243                         code = compile(codeText, "skin applet", "exec")
 244
 245                         if type == "onLayoutFinish":
 246                                 screen.onLayoutFinish.append(code)
 247                         else:
 248                                 raise str("applet type '%s' unknown!" % type)
 249
 250                         continue
 251
 252                 class additionalWidget:
 253                         pass
 254
 255                 w = additionalWidget()
 256
 257                 if widget.tagName == "eLabel":
 258                         w.widget = eLabel
 259                 elif widget.tagName == "ePixmap":
 260                         w.widget = ePixmap
 261                 else:
 262                         raise str("unsupported stuff : %s" % widget.tagName)
 263
 264                 w.skinAttributes = [ ]
 265                 collectAttributes(w.skinAttributes, widget)
 266
 267                 # applyAttributes(guiObject, widget, desktop)
 268                 # guiObject.thisown = 0
 269                 screen.additionalWidgets.append(w)