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05-21-2004, 06:48 AM
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#1
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Member
Registered: Aug 2003
Location: Belguim, Ostend and Ghent
Distribution: Ubuntu
Posts: 600
Rep:
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GTK tree view/model/selection question
owkay,
I usually program java, but because java is some damned slow and eats up to many resources, I began to do some C programming. I know the basics and created some small apps, but now I am working on a my first GTK app. So be nice to this GTK noob  ...
I made window with a GtkTreeView (with a GtkListStore and GtkTreeSelection). I am able to add things to it with a dialog box, but now I'd like to make some function to remove the selected entry in the list.
How should I do this? I noticed the function gtk_tree_selection_get_selected_rows which gives me a GList* but what next? I know I can get the selection paths out of it (which should be just one row since I've set the mode on GTK_SELECTION_SINGLE), but how do you remove those paths from the model?
thanks for all help,
elluva
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05-21-2004, 10:36 AM
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#2
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Member
Registered: Aug 2002
Distribution: Debian
Posts: 540
Rep:
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Well... Though I don't remember too well, I have done this before. I think there is a gtk function to remove an item from a tree. Look into the gtk tuts over at www.gtk.org, or try google. If google, do a search for some of the other tree functions, and see if you can find it that way. Keep trying, don't give up, you'll get it. 
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05-21-2004, 10:41 AM
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#3
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Member
Registered: Aug 2003
Location: Belguim, Ostend and Ghent
Distribution: Ubuntu
Posts: 600
Original Poster
Rep:
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I know, I won't give up. It really isn't in the API. I don't know much about C and this probably isn't right, but could it be that you just have to free that path and then send a signal to the model (there is a function for that)?
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05-21-2004, 10:42 AM
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#4
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Member
Registered: Aug 2002
Distribution: Debian
Posts: 540
Rep:
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Try looking into:
gtk_tree_remove_items ();
Or:
g_list_remove ()
I did a quick search to find these...
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05-21-2004, 10:43 AM
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#5
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Member
Registered: Aug 2003
Location: Belguim, Ostend and Ghent
Distribution: Ubuntu
Posts: 600
Original Poster
Rep:
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Nope, I wasn't using the deprecated GtkTree object, but the MVC-based GtkTreeView and GtkListStore. Maybee someone can help me out... plz
Last edited by elluva; 05-21-2004 at 10:53 AM.
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05-21-2004, 10:51 AM
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#6
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Member
Registered: Aug 2002
Distribution: Debian
Posts: 540
Rep:
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Got it! Here:
Code:
GtkCTreeNode *is_node(GtkCTree *ctree, GtkCTreeNode *node, char *name)
{
gchar *temp;
GtkCTreeNode *sibling;
if (node==NULL) return rootNode;
sibling=GTK_CTREE_ROW(node)->children;
temp=(gchar *)malloc(MAX_FILE_LEN);
if (temp==NULL)
{
printf("\ncouldn't allocate memory!");
return NULL;
}
while(sibling!=NULL)
{
gtk_ctree_get_node_info(GTK_CTREE(ctree), GTK_CTREE_NODE(sibling), &temp, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
if (strcmp((char *)temp, name)==0) return sibling;
//printf("\nName: %s", temp);
sibling=GTK_CTREE_ROW(sibling)->sibling;
}
return NULL;
}
node = is_node(Tree, parent, "item1");
gtk_ctree_remove_node(GTK_CTREE(Tree), node);
This is the code I used to remove a item from a tree by name This might help you though.
Btw, this is Gtk+-1.2
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05-21-2004, 10:55 AM
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#7
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Member
Registered: Aug 2003
Location: Belguim, Ostend and Ghent
Distribution: Ubuntu
Posts: 600
Original Poster
Rep:
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oops, posted at the same time... well I didn't use Gtk+-1.2 but Gtk+-2 so I can't really use this. Sorry, i appreciate your aswer.
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05-21-2004, 01:59 PM
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#8
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Member
Registered: Aug 2003
Location: Belguim, Ostend and Ghent
Distribution: Ubuntu
Posts: 600
Original Poster
Rep:
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owkay, I found the answer by googling to it, for everyone that has the same question:
http://scentric.net/tutorial/sec-tre...emove-row.html
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05-22-2004, 12:19 PM
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#9
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Member
Registered: Aug 2002
Distribution: Debian
Posts: 540
Rep:
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