Hey there...
A very strange problem. I am designing an application to display the
contents of a three dimensional data structure.( residing on server
side )
It comprises of a dropdown ( combo box ) from which, the user selects
the datatype and gets the objects as a list, which are displayed in a
textview widget. those objects are themselves links to further
information.
The code for the callback of the combobox , which has the complete
display function for the list in the viewbox is as follows.
1 def get_view_list(self, data = None):
2 data1 = view_list_combo.entry.get_text()
3 print data1 # user gets which datatype to query for
4 textbuffer.set_text("")
5 result = viewcalls.viewcallback(data1)
# This is query for objects of that datatype , defined in some other file
# list of names is obtained in the result file.
6 def hyperlink_handler(tag, widget, event, iter):
7 line_number = iter.get_line()
8 print(line_number)
9 if event.type == gtk.gdk.BUTTON_RELEASE:
10 print(result[line_number])
# Defn of event on tag "hyperlink" , for now, just on trial purpose
displayin the
# name of the object. Tag has been displayed outside the function.
11 hyperlink.connect('event', hyperlink_handler)
12 for text in result:
13 textbuffer.insert_at_cursor(text + '\n')
# to insert text into the textbuffer
14 iter1 = textbuffer.get_start_iter()
15 iter = textbuffer.get_start_iter()
16 flag = iter.forward_to_line_end()
17 while(flag != 0) :
18 textbuffer.apply_tag(hyperlink,iter,iter1)
19 flag = iter.forward_line()
20 iter1 = iter.copy()
21 iter.forward_to_line_end()
# to set hyperlink tag to each item and to detect the linenumber so as
to pass it
# to the function as itz same as position of the item in list.
The Problem : i ll explain with an example
when i select "metatype" from ComboBox, list of metatypes comes into
variable - result (code line 5). and is also displayed on screen(Code
line 12-13). now clicking on any one name (say -- animal on line 3 of
text buffer) , displays that name since call prints result[3] ( code
line 6 - 10 )
Now, however, after selecting somethign else from the combobox , say
"ObjectType" , again, the list comes in result ( Code line 5 ) and is
displayed on screen ( code line 12 - 13 ) .
But When i click on any object ( say man, present on line 3 of buffer,
) not only the man ( result[3] ) is printed , but also animal ( which
was at that position in the variable during prev iteration )
I dont know, why the values of result variable are not over written
but are preserved everytime i call the event handler for the
hyperlink. Do i have to manually clear them ?? how do i do that ??
I am stuck up at this point, since it doesnt record a unique name
which i want to go ahead with the coding.. Can someone please help me
out with this..
Thanks a million in anticipation..
-- Saurabh
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