--- ECHO_content/ECHO_collection.py	2004/05/13 21:28:47	1.86
+++ ECHO_content/ECHO_collection.py	2004/05/18 22:30:09	1.87
@@ -124,9 +124,25 @@ def sendFile(self, filename, type):
 	self.REQUEST.RESPONSE.write(file(fn).read())
     return
 
+class BrowserCheck:
+    """check the browsers request to find out the browser type"""
+    
+    def __init__(self, zope):
+	self.ua = zope.REQUEST.get_header("HTTP_USER_AGENT")
+	self.isN4 = (string.find(self.ua, 'Mozilla/4.') > -1) and (string.find(self.ua, 'MSIE') < 0)
+	self.isIE = string.find(self.ua, 'MSIE') > -1
+	self.nav = self.ua[string.find(self.ua, '('):]
+	ie = string.split(self.nav, "; ")[1]
+	if string.find(ie, "MSIE") > -1:
+	    self.versIE = string.split(ie, " ")[1]
+	self.isMac = string.find(self.ua, 'Macintosh') > -1
+	self.isWin = string.find(self.ua, 'Windows') > -1
+	self.isIEWin = self.isIE and self.isWin
+	self.isIEMac = self.isIE and self.isMac
+
 
 def writeMetadata(url,metadict):
-	"""Einlesen der Metadaten und und erstellen des geänderten XML file"""
+	"""Einlesen der Metadaten und und erstellen des geaenderten XML file"""
 
 	try:
 		geturl=""
@@ -1042,17 +1058,34 @@ class ECHO_collection(Folder, Persistent
         """generate divs"""
         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/ECHO_content_map_frag_js')).__of__(self)
         return pt()
+
+    def createMapImg(self):
+	"""generate img-tag for map"""
+	bt = BrowserCheck(self)
+	tag = ""
+	src = self.REQUEST['URL1'] + "/overview"
+	if bt.isN4:
+	    tag += '<ilayer id="overview" visibility="show"><img src="%s"></ilayer>'%src
+	else:
+	    tag += '<img id="overview" src="%s" />'%src
+	return tag
         
     def createMapLink(self, ob, text=None):
 	"""generate map link"""
+	bt = BrowserCheck(self)
 	id = ob[1]
 	link = ob[1]
 	if text == None:
 	    text = ob[2]
-	tag = '<a id="a.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank"'%(id,id,id,link)
-	if ob[3].contentType == 'text-popup':
-	    tag += ' title="%s"'%ob[3].description
-	tag += ">" + text + "</a>"
+	tag = ""
+	if bt.isN4:
+	    tag += '<ilayer id="a.%s"><a onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank"'%(id,id,id,link)
+	    tag += ">" + text + "</a></ilayer>"
+	else:
+	    tag = '<a id="a.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank"'%(id,id,id,link)
+	    if ob[3].contentType == 'text-popup':
+		tag += ' title="%s"'%ob[3].description
+	    tag += ">" + text + "</a>"
 	return tag
 
     def createMapAux(self, ob, arrowsrc="http://nausikaa2.rz-berlin.mpg.de/digitallibrary/servlet/Scaler/?dw=15&fn=icons/pfeil"):
@@ -1061,18 +1094,39 @@ class ECHO_collection(Folder, Persistent
 	link = ob[1]
 	vtype = ob[5]
 	ctype = ob[3].contentType
-	
-	tag = '<a id="b.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank">'%(id,id,id,link)
-	if vtype == "view point":
-	    rot = ob[4][4]
-	    tag += '<img id="i.%s" src="%s&rot=%s" border="1" style="position:absolute; top:-100px; left:-100px; border-style:none" />'%(id,arrowsrc,rot)
+	bt = BrowserCheck(self)
+	tag = ""
+
+	if bt.isN4:
+	    tag += '<layer id="i.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)">'%(id,id,id)
+	    if vtype == "view point":
+	        rot = ob[4][4]
+		tag += '<a href="%s"><img border="0" src="%s&rot=%s" /></a>'%(link,arrowsrc,rot)
+	    else:
+		tag += '<a href="%s"><img border="0" width="1000" height="1000" src="trans_img"'%(link)
+		if ctype == "text-popup":
+		    desc = ob[3].description
+		    tag += ' alt="%s"'%desc
+		tag += ' /></a>'
+	    tag += '</layer>'
 	else:
-	    tag += '<span id="i.%s" style="position:absolute; top:-100px; left:-100px; border-style:none"'%(id)
-	    if ctype == "text-popup":
-		desc = ob[3].description
-		tag += ' title="%s"'%desc
-	    tag += ' />'
-	tag += '</a>'
+	    tag = '<a id="b.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank">'%(id,id,id,link)
+	    if vtype == "view point":
+		rot = ob[4][4]
+		if bt.isIEWin and bt.versIE > 5:
+		    tag += '<span id="i.%s" style="position:absolute; top:-100px; left:-100px; border-style:none; border-width=1px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'%s&rot=%s\');"><img style="visibility:hidden" src="%s&rot=%s" /></span>'%(id,arrowsrc,rot,arrowsrc,rot)
+		else:
+		    tag += '<img id="i.%s" src="%s&rot=%s" border="1" style="position:absolute; top:-100px; left:-100px; border-style:none;" />'%(id,arrowsrc,rot)
+	    else:
+		if bt.isIEWin:
+		    tag += '<div id="i.%s" style="position:absolute; top:-100px; left:-100px;background:url(area_img)"'%(id)
+		else:
+		    tag += '<div id="i.%s" style="position:absolute; top:-100px; left:-100px;"'%(id)
+		if ctype == "text-popup":
+		    desc = ob[3].description
+		    tag += ' title="%s"'%desc
+		tag += '> </div>'
+	    tag += '</a>'
 	return tag
 
     
@@ -1292,6 +1346,10 @@ class ECHO_collection(Folder, Persistent
         """area image"""
         return sendFile(self, 'images/red.gif', 'image/gif')
 
+    def trans_img(self):
+        """empty image"""
+        return sendFile(self, 'images/trans.gif', 'image/gif')
+
     def hl_lib_js(self):
         """javascript"""
         return sendFile(self, 'js/hl_lib.js', 'text/plain')