implemented current texture to be displayed in the "set texture" form

pyweb/mumble/models.py

@@ -14,9 +14,9 @@
  *  GNU General Public License for more details.
 """
 
-from PIL import Image
-from struct import pack
-from zlib import compress
+from PIL    import Image
+from struct import pack, unpack
+from zlib   import compress, decompress
 
 from django.contrib.auth.models import User
 from django.db import models
@@ -223,6 +223,28 @@ class MumbleUser( models.Model ):
 		bus.setACL( *acl.pack() );
 		return value;
 	
+	def getTexture( self ):
+		murmur = self.server.getDbusObject();
+		texture = murmur.getTexture( dbus.Int32( self.mumbleid ) );
+		if len(texture) == 0:
+			raise ValueError( "No Texture has been set." );
+		# this returns a list of bytes.
+		# first 4 bytes: Length of uncompressed string, rest: compressed data
+		orig_len = ( texture[0] << 24 ) | ( texture[1] << 16 ) | ( texture[2] << 8 ) | ( texture[3] );
+		# convert rest to string and run decompress
+		bytestr = "";
+		for byte in texture[4:]:
+			bytestr += pack( "B", int(byte) );
+		decompressed = decompress( bytestr );
+		# iterate over 4 byte chunks of the string
+		imgdata = "";
+		for idx in range( 0, orig_len, 4 ):
+			# read 4 bytes = BGRA and convert to RGBA
+			bgra = unpack( "4B", decompressed[idx:idx+4] );
+			imgdata += pack( "4B",  bgra[2], bgra[1], bgra[0], bgra[3] );
+		# return an 600x60 RGBA image object created from the data
+		return Image.fromstring( "RGBA", ( 600, 60 ), imgdata );
+	
 	def setTexture( self, infile ):
 		# open image, convert to RGBA, and resize to 600x60
 		img = Image.open( infile ).convert( "RGBA" ).transform( ( 600, 60 ), Image.EXTENT, ( 0, 0, 600, 60 ) );

pyweb/mumble/urls.py

@@ -17,7 +17,8 @@
 from django.conf.urls.defaults import *
 
 urlpatterns = patterns(
-	'',
-	( r'(?P<server>\d+)',		'mumble.views.show' ),
-	( r'$',				'mumble.views.mumbles' ),
+	'mumble.views',
+	( r'(?P<server>\d+)/texture.jpg',	'showTexture' ),
+	( r'(?P<server>\d+)',		'show' ),
+	( r'$',				'mumbles' ),
 )

pyweb/mumble/views.py

@@ -14,9 +14,11 @@
  *  GNU General Public License for more details.
 """
 
+from StringIO				import StringIO
+
 from django.shortcuts			import render_to_response, get_object_or_404, get_list_or_404
 from django.template			import RequestContext
-from django.http			import HttpResponseRedirect
+from django.http			import Http404, HttpResponse, HttpResponseRedirect
 from django.core.urlresolvers		import reverse
 from django.contrib.auth.decorators	import login_required
 
@@ -124,6 +126,20 @@ def show( request, server ):
 		);
 
 
+def showTexture( request, server ):
+	if request.user.is_authenticated():
+		srv  = Mumble.objects.get( id=int(server) );
+		user = MumbleUser.objects.get( server=srv, owner=request.user );
+		try:
+			img  = user.getTexture();
+		except ValueError:
+			raise Http404();
+		else:
+			buffer = StringIO();
+			img.save( buffer, "JPEG" );
+			return HttpResponse( buffer.getvalue(), "image/jpeg" );
+	raise Http404();
+
 def showContent( server, user = None ):
 	"Renders and returns the channel list for the given Server ID."
 	from django.template import Context, loader

template/mumble/mumble.htm

@@ -40,7 +40,11 @@
   {% if Registered %}
     <div id="mumble_texture">
 	  <h2>User Texture</h2>
-	  You can upload an image that you would like to use as your user texture here.<br />
+	  <p>
+	    You can upload an image that you would like to use as your user texture here.<br />
+	    Your current texture is:<br />
+	    <img src="/mumble/{{DBaseObject.id}}/texture.jpg" alt="user texture" /><br />
+	  </p>
 	  <form action="" method="post" enctype="multipart/form-data">
 	    <table>
 	      {{ TextureForm }}