skin.py

   1 from Tools.Profile import profile, profile_final
   2
   3 profile("LOAD:minidom")
   4 import xml.dom.minidom
   5 from os import path
   6
   7 profile("LOAD:enigma_skin")
   8 from enigma import eSize, ePoint, gFont, eWindow, eLabel, ePixmap, eWindowStyleManager, \
   9         addFont, gRGB, eWindowStyleSkinned
  10
  11 from Components.config import ConfigSubsection, ConfigText, config
  12 from Components.Converter.Converter import Converter
  13 from Components.Sources.Source import Source, ObsoleteSource
  14 from Tools.Directories import resolveFilename, SCOPE_SKIN, SCOPE_SKIN_IMAGE, SCOPE_FONTS
  15 from Tools.Import import my_import
  16 from Tools.LoadPixmap import LoadPixmap
  17
  18 from Tools.XMLTools import elementsWithTag, mergeText
  19
  20 colorNames = dict()
  21
  22 def dump(x, i=0):
  23         print " " * i + str(x)
  24         try:
  25                 for n in x.childNodes:
  26                         dump(n, i + 1)
  27         except:
  28                 None
  29
  30 class SkinError(Exception):
  31         def __init__(self, message):
  32                 self.message = message
  33
  34         def __str__(self):
  35                 return self.message
  36
  37 dom_skins = [ ]
  38
  39 def loadSkin(name):
  40         # read the skin
  41         filename = resolveFilename(SCOPE_SKIN, name)
  42         mpath = path.dirname(filename) + "/"
  43         dom_skins.append((mpath, xml.dom.minidom.parse(filename)))
  44
  45 # we do our best to always select the "right" value
  46 # skins are loaded in order of priority: skin with
  47 # highest priority is loaded last, usually the user-provided
  48 # skin.
  49
  50 # currently, loadSingleSkinData (colors, bordersets etc.)
  51 # are applied one-after-each, in order of ascending priority.
  52 # the dom_skin will keep all screens in descending priority,
  53 # so the first screen found will be used.
  54
  55 # example: loadSkin("nemesis_greenline/skin.xml")
  56 config.skin = ConfigSubsection()
  57 config.skin.primary_skin = ConfigText(default = "skin.xml")
  58
  59 profile("LoadSkin")
  60 try:
  61         loadSkin(config.skin.primary_skin.value)
  62 except (SkinError, IOError, AssertionError), err:
  63         print "SKIN ERROR:", err
  64         print "defaulting to standard skin..."
  65         config.skin.primary_skin.value = 'skin.xml'
  66         loadSkin('skin.xml')
  67
  68 profile("LoadSkinDefault")
  69 loadSkin('skin_default.xml')
  70 profile("LoadSkinDefaultDone")
  71
  72 def parsePosition(str):
  73         x, y = str.split(',')
  74         return ePoint(int(x), int(y))
  75
  76 def parseSize(str):
  77         x, y = str.split(',')
  78         return eSize(int(x), int(y))
  79
  80 def parseFont(str):
  81         name, size = str.split(';')
  82         return gFont(name, int(size))
  83
  84 def parseColor(str):
  85         if str[0] != '#':
  86                 try:
  87                         return colorNames[str]
  88                 except:
  89                         raise SkinError("color '%s' must be #aarrggbb or valid named color" % (str))
  90         return gRGB(int(str[1:], 0x10))
  91
  92 def collectAttributes(skinAttributes, node, skin_path_prefix=None, ignore=[]):
  93         # walk all attributes
  94         for p in range(node.attributes.length):
  95                 a = node.attributes.item(p)
  96
  97                 # convert to string (was: unicode)
  98                 attrib = str(a.name)
  99                 # TODO: localization? as in e1?
 100                 value = a.value.encode("utf-8")
 101
 102                 if attrib in ["pixmap", "pointer", "seek_pointer", "backgroundPixmap", "selectionPixmap"]:
 103                         value = resolveFilename(SCOPE_SKIN_IMAGE, value, path_prefix=skin_path_prefix)
 104
 105                 if attrib not in ignore:
 106                         skinAttributes.append((attrib, value))
 107
 108 def loadPixmap(path, desktop):
 109         ptr = LoadPixmap(path, desktop)
 110         if ptr is None:
 111                 raise SkinError("pixmap file %s not found!" % (path))
 112         return ptr
 113
 114 def applySingleAttribute(guiObject, desktop, attrib, value):
 115         # and set attributes
 116         try:
 117                 if attrib == 'position':
 118                         guiObject.move(parsePosition(value))
 119                 elif attrib == 'size':
 120                         guiObject.resize(parseSize(value))
 121                 elif attrib == 'title':
 122                         guiObject.setTitle(_(value))
 123                 elif attrib == 'text':
 124                         guiObject.setText(_(value))
 125                 elif attrib == 'font':
 126                         guiObject.setFont(parseFont(value))
 127                 elif attrib == 'zPosition':
 128                         guiObject.setZPosition(int(value))
 129                 elif attrib in ["pixmap", "backgroundPixmap", "selectionPixmap"]:
 130                         ptr = loadPixmap(value, desktop) # this should already have been filename-resolved.
 131                         if attrib == "pixmap":
 132                                 guiObject.setPixmap(ptr)
 133                         elif attrib == "backgroundPixmap":
 134                                 guiObject.setBackgroundPicture(ptr)
 135                         elif attrib == "selectionPixmap":
 136                                 guiObject.setSelectionPicture(ptr)
 137                         # guiObject.setPixmapFromFile(value)
 138                 elif attrib == "alphatest": # used by ePixmap
 139                         guiObject.setAlphatest(
 140                                 { "on": 1,
 141                                   "off": 0,
 142                                   "blend": 2,
 143                                 }[value])
 144                 elif attrib == "orientation": # used by eSlider
 145                         try:
 146                                 guiObject.setOrientation(
 147                                         { "orVertical": guiObject.orVertical,
 148                                                 "orHorizontal": guiObject.orHorizontal
 149                                         }[value])
 150                         except KeyError:
 151                                 print "oprientation must be either orVertical or orHorizontal!"
 152                 elif attrib == "valign":
 153                         try:
 154                                 guiObject.setVAlign(
 155                                         { "top": guiObject.alignTop,
 156                                                 "center": guiObject.alignCenter,
 157                                                 "bottom": guiObject.alignBottom
 158                                         }[value])
 159                         except KeyError:
 160                                 print "valign must be either top, center or bottom!"
 161                 elif attrib == "halign":
 162                         try:
 163                                 guiObject.setHAlign(
 164                                         { "left": guiObject.alignLeft,
 165                                                 "center": guiObject.alignCenter,
 166                                                 "right": guiObject.alignRight,
 167                                                 "block": guiObject.alignBlock
 168                                         }[value])
 169                         except KeyError:
 170                                 print "halign must be either left, center, right or block!"
 171                 elif attrib == "flags":
 172                         flags = value.split(',')
 173                         for f in flags:
 174                                 try:
 175                                         fv = eWindow.__dict__[f]
 176                                         guiObject.setFlag(fv)
 177                                 except KeyError:
 178                                         print "illegal flag %s!" % f
 179                 elif attrib == "backgroundColor":
 180                         guiObject.setBackgroundColor(parseColor(value))
 181                 elif attrib == "backgroundColorSelected":
 182                         guiObject.setBackgroundColorSelected(parseColor(value))
 183                 elif attrib == "foregroundColor":
 184                         guiObject.setForegroundColor(parseColor(value))
 185                 elif attrib == "foregroundColorSelected":
 186                         guiObject.setForegroundColorSelected(parseColor(value))
 187                 elif attrib == "shadowColor":
 188                         guiObject.setShadowColor(parseColor(value))
 189                 elif attrib == "selectionDisabled":
 190                         guiObject.setSelectionEnable(0)
 191                 elif attrib == "transparent":
 192                         guiObject.setTransparent(int(value))
 193                 elif attrib == "borderColor":
 194                         guiObject.setBorderColor(parseColor(value))
 195                 elif attrib == "borderWidth":
 196                         guiObject.setBorderWidth(int(value))
 197                 elif attrib == "scrollbarMode":
 198                         guiObject.setScrollbarMode(
 199                                 { "showOnDemand": guiObject.showOnDemand,
 200                                         "showAlways": guiObject.showAlways,
 201                                         "showNever": guiObject.showNever
 202                                 }[value])
 203                 elif attrib == "enableWrapAround":
 204                         guiObject.setWrapAround(True)
 205                 elif attrib == "pointer" or attrib == "seek_pointer":
 206                         (name, pos) = value.split(':')
 207                         pos = parsePosition(pos)
 208                         ptr = loadPixmap(name, desktop)
 209                         guiObject.setPointer({"pointer": 0, "seek_pointer": 1}[attrib], ptr, pos)
 210                 elif attrib == 'shadowOffset':
 211                         guiObject.setShadowOffset(parsePosition(value))
 212                 elif attrib == 'noWrap':
 213                         guiObject.setNoWrap(1)
 214                 else:
 215                         raise SkinError("unsupported attribute " + attrib + "=" + value)
 216         except int:
 217 # AttributeError:
 218                 print "widget %s (%s) doesn't support attribute %s!" % ("", guiObject.__class__.__name__, attrib)
 219
 220 def applyAllAttributes(guiObject, desktop, attributes):
 221         for (attrib, value) in attributes:
 222                 applySingleAttribute(guiObject, desktop, attrib, value)
 223
 224 def loadSingleSkinData(desktop, dom_skin, path_prefix):
 225         """loads skin data like colors, windowstyle etc."""
 226
 227         skin = dom_skin.childNodes[0]
 228         assert skin.tagName == "skin", "root element in skin must be 'skin'!"
 229
 230         for c in elementsWithTag(skin.childNodes, "output"):
 231                 id = int(c.getAttribute("id") or "0")
 232                 if id == 0: # framebuffer
 233                         for res in elementsWithTag(c.childNodes, "resolution"):
 234                                 xres = int(res.getAttribute("xres" or "720"))
 235                                 yres = int(res.getAttribute("yres" or "576"))
 236                                 bpp = int(res.getAttribute("bpp" or "32"))
 237
 238                                 from enigma import gFBDC
 239                                 i = gFBDC.getInstance()
 240                                 i.setResolution(xres, yres)
 241
 242                                 if bpp != 32:
 243                                         # load palette (not yet implemented)
 244                                         pass
 245
 246         for c in elementsWithTag(skin.childNodes, "colors"):
 247                 for color in elementsWithTag(c.childNodes, "color"):
 248                         name = str(color.getAttribute("name"))
 249                         color = str(color.getAttribute("value"))
 250
 251                         if not len(color):
 252                                 raise ("need color and name, got %s %s" % (name, color))
 253
 254                         colorNames[name] = parseColor(color)
 255
 256         for c in elementsWithTag(skin.childNodes, "fonts"):
 257                 for font in elementsWithTag(c.childNodes, "font"):
 258                         filename = str(font.getAttribute("filename") or "<NONAME>")
 259                         name = str(font.getAttribute("name") or "Regular")
 260                         scale = int(font.getAttribute("scale") or "100")
 261                         is_replacement = font.getAttribute("replacement") != ""
 262                         addFont(resolveFilename(SCOPE_FONTS, filename, path_prefix=path_prefix), name, scale, is_replacement)
 263
 264         for windowstyle in elementsWithTag(skin.childNodes, "windowstyle"):
 265                 style = eWindowStyleSkinned()
 266                 id = int(windowstyle.getAttribute("id") or "0")
 267
 268                 # defaults
 269                 font = gFont("Regular", 20)
 270                 offset = eSize(20, 5)
 271
 272                 for title in elementsWithTag(windowstyle.childNodes, "title"):
 273                         offset = parseSize(title.getAttribute("offset"))
 274                         font = parseFont(str(title.getAttribute("font")))
 275
 276                 style.setTitleFont(font);
 277                 style.setTitleOffset(offset)
 278
 279                 for borderset in elementsWithTag(windowstyle.childNodes, "borderset"):
 280                         bsName = str(borderset.getAttribute("name"))
 281                         for pixmap in elementsWithTag(borderset.childNodes, "pixmap"):
 282                                 bpName = str(pixmap.getAttribute("pos"))
 283                                 filename = str(pixmap.getAttribute("filename"))
 284
 285                                 png = loadPixmap(resolveFilename(SCOPE_SKIN_IMAGE, filename, path_prefix=path_prefix), desktop)
 286                                 style.setPixmap(eWindowStyleSkinned.__dict__[bsName], eWindowStyleSkinned.__dict__[bpName], png)
 287
 288                 for color in elementsWithTag(windowstyle.childNodes, "color"):
 289                         type = str(color.getAttribute("name"))
 290                         color = parseColor(color.getAttribute("color"))
 291
 292                         try:
 293                                 style.setColor(eWindowStyleSkinned.__dict__["col" + type], color)
 294                         except:
 295                                 raise ("Unknown color %s" % (type))
 296
 297                 x = eWindowStyleManager.getInstance()
 298                 x.setStyle(id, style)
 299
 300 def loadSkinData(desktop):
 301         skins = dom_skins[:]
 302         skins.reverse()
 303         for (path, dom_skin) in skins:
 304                 loadSingleSkinData(desktop, dom_skin, path)
 305
 306 def lookupScreen(name):
 307         for (path, dom_skin) in dom_skins:
 308                 # first, find the corresponding screen element
 309                 skin = dom_skin.childNodes[0]
 310                 for x in elementsWithTag(skin.childNodes, "screen"):
 311                         if x.getAttribute('name') == name:
 312                                 return x, path
 313         return None, None
 314
 315 def readSkin(screen, skin, names, desktop):
 316         if not isinstance(names, list):
 317                 names = [names]
 318
 319         name = "<embedded-in-'%s'>" % screen.__class__.__name__
 320
 321         # try all skins, first existing one have priority
 322         for n in names:
 323                 myscreen, path = lookupScreen(n)
 324                 if myscreen is not None:
 325                         # use this name for debug output
 326                         name = n
 327                         break
 328
 329         # otherwise try embedded skin
 330         myscreen = myscreen or getattr(screen, "parsedSkin", None)
 331
 332         # try uncompiled embedded skin
 333         if myscreen is None and getattr(screen, "skin", None):
 334                 myscreen = screen.parsedSkin = xml.dom.minidom.parseString(screen.skin).childNodes[0]
 335
 336         assert myscreen is not None, "no skin for screen '" + repr(names) + "' found!"
 337
 338         screen.skinAttributes = [ ]
 339
 340         skin_path_prefix = getattr(screen, "skin_path", path)
 341
 342         collectAttributes(screen.skinAttributes, myscreen, skin_path_prefix, ignore=["name"])
 343
 344         screen.additionalWidgets = [ ]
 345         screen.renderer = [ ]
 346
 347         visited_components = set()
 348
 349         # now walk all widgets
 350         for widget in elementsWithTag(myscreen.childNodes, "widget"):
 351                 # ok, we either have 1:1-mapped widgets ('old style'), or 1:n-mapped
 352                 # widgets (source->renderer).
 353
 354                 wname = widget.getAttribute('name')
 355                 wsource = widget.getAttribute('source')
 356
 357
 358                 if wname is None and wsource is None:
 359                         print "widget has no name and no source!"
 360                         continue
 361
 362                 if wname:
 363                         visited_components.add(wname)
 364
 365                         # get corresponding 'gui' object
 366                         try:
 367                                 attributes = screen[wname].skinAttributes = [ ]
 368                         except:
 369                                 raise SkinError("component with name '" + wname + "' was not found in skin of screen '" + name + "'!")
 370
 371 #                       assert screen[wname] is not Source
 372
 373                         # and collect attributes for this
 374                         collectAttributes(attributes, widget, skin_path_prefix, ignore=['name'])
 375                 elif wsource:
 376                         # get corresponding source
 377
 378                         while True: # until we found a non-obsolete source
 379
 380                                 # parse our current "wsource", which might specifiy a "related screen" before the dot,
 381                                 # for example to reference a parent, global or session-global screen.
 382                                 scr = screen
 383
 384                                 # resolve all path components
 385                                 path = wsource.split('.')
 386                                 while len(path) > 1:
 387                                         scr = screen.getRelatedScreen(path[0])
 388                                         if scr is None:
 389                                                 print wsource
 390                                                 print name
 391                                                 raise SkinError("specified related screen '" + wsource + "' was not found in screen '" + name + "'!")
 392                                         path = path[1:]
 393
 394                                 # resolve the source.
 395                                 source = scr.get(path[0])
 396                                 if isinstance(source, ObsoleteSource):
 397                                         # however, if we found an "obsolete source", issue warning, and resolve the real source.
 398                                         print "WARNING: SKIN '%s' USES OBSOLETE SOURCE '%s', USE '%s' INSTEAD!" % (name, wsource, source.new_source)
 399                                         print "OBSOLETE SOURCE WILL BE REMOVED %s, PLEASE UPDATE!" % (source.removal_date)
 400                                         if source.description:
 401                                                 print source.description
 402
 403                                         wsource = source.new_source
 404                                 else:
 405                                         # otherwise, use that source.
 406                                         break
 407
 408                         if source is None:
 409                                 raise SkinError("source '" + wsource + "' was not found in screen '" + name + "'!")
 410
 411                         wrender = widget.getAttribute('render')
 412
 413                         if not wrender:
 414                                 raise SkinError("you must define a renderer with render= for source '%s'" % (wsource))
 415
 416                         for converter in elementsWithTag(widget.childNodes, "convert"):
 417                                 ctype = converter.getAttribute('type')
 418                                 assert ctype, "'convert'-tag needs a 'type'-attribute"
 419                                 parms = mergeText(converter.childNodes).strip()
 420                                 converter_class = my_import('.'.join(["Components", "Converter", ctype])).__dict__.get(ctype)
 421
 422                                 c = None
 423
 424                                 for i in source.downstream_elements:
 425                                         if isinstance(i, converter_class) and i.converter_arguments == parms:
 426                                                 c = i
 427
 428                                 if c is None:
 429                                         print "allocating new converter!"
 430                                         c = converter_class(parms)
 431                                         c.connect(source)
 432                                 else:
 433                                         print "reused converter!"
 434
 435                                 source = c
 436
 437                         renderer_class = my_import('.'.join(["Components", "Renderer", wrender])).__dict__.get(wrender)
 438
 439                         renderer = renderer_class() # instantiate renderer
 440
 441                         renderer.connect(source) # connect to source
 442                         attributes = renderer.skinAttributes = [ ]
 443                         collectAttributes(attributes, widget, skin_path_prefix, ignore=['render', 'source'])
 444
 445                         screen.renderer.append(renderer)
 446
 447         from Components.GUIComponent import GUIComponent
 448         nonvisited_components = [x for x in set(screen.keys()) - visited_components if isinstance(x, GUIComponent)]
 449
 450         assert not nonvisited_components, "the following components in %s don't have a skin entry: %s" % (name, ', '.join(nonvisited_components))
 451
 452         # now walk additional objects
 453         for widget in elementsWithTag(myscreen.childNodes, lambda x: x != "widget"):
 454                 if widget.tagName == "applet":
 455                         codeText = mergeText(widget.childNodes).strip()
 456                         type = widget.getAttribute('type')
 457
 458                         code = compile(codeText, "skin applet", "exec")
 459
 460                         if type == "onLayoutFinish":
 461                                 screen.onLayoutFinish.append(code)
 462                         else:
 463                                 raise SkinError("applet type '%s' unknown!" % type)
 464
 465                         continue
 466
 467                 class additionalWidget:
 468                         pass
 469
 470                 w = additionalWidget()
 471
 472                 if widget.tagName == "eLabel":
 473                         w.widget = eLabel
 474                 elif widget.tagName == "ePixmap":
 475                         w.widget = ePixmap
 476                 else:
 477                         raise SkinError("unsupported stuff : %s" % widget.tagName)
 478
 479                 w.skinAttributes = [ ]
 480                 collectAttributes(w.skinAttributes, widget, skin_path_prefix, ignore=['name'])
 481
 482                 # applyAttributes(guiObject, widget, desktop)
 483                 # guiObject.thisown = 0
 484                 screen.additionalWidgets.append(w)