Re: GtkTree, cell with toggle

[Todd Fisher <taf2 lehigh edu>]

P s

// setup the toggle column
gtk_tree_view_column_add_attribute( column, cell, "active", COL_ID );
g_signal_connect( cell, "toggled", G_CALLBACK( check_toggled ), treeview );

// an example toggle callback:
void check_toggled( GtkCellRendererToggle *cell, gchar *path_str, 
GtkTreeView *view )
{
gboolean value;
guint column_number = GPOINTER_TO_UINT( g_object_get_data( G_OBJECT( 
cell ), "column_number" ) );
GtkTreeIter iter;
GtkTreeModel *model = gtk_tree_view_get_model( view );
GtkTreePath *path = gtk_tree_path_new_from_string( path_str );

if( gtk_tree_model_get_iter( model, &iter, path ) ){

gtk_tree_model_get( model, &iter, column_number, &value, -1 );
if( value ){
value = FALSE;
}
else{
value = TRUE;
}
// value = !value;
gtk_tree_store_set( GTK_TREE_STORE( model ), &iter, column_number, 
value, -1 );
}
gtk_tree_path_free( path );

}


-todd

p s wrote:

> Guess what, that's exactly where I took the example when beginning 
> this one, but just can't get past this issue with the hints hidden 
> there. But thanks for the huge efford any way tod.
>
> P_s
>
> Todd Fisher wrote:
>
> > you should have a look at this tutorial:
> > http://scentric.net/tutorial/sec-editable-cells.html
> >
> > p s wrote:
> >
> > > I have created a table with GtkTree and on one colums I have a 
> > > chechbox to indicate certain boolean value... All in all the tree 
> > > works ok, renders properly and I have sortable/clickable headers in 
> > > the table and that too works. I experience a problem on a callback 
> > > where the checkbox is clicked..
> > >
> > > currently I have:
> > >
> > > static GtkTreeView * tree;
> > > static GtkTreeStore *store;
> > > ...
> > >
> > > store = gtk_tree_store_new (N_COLUMNS,
> > > G_TYPE_INT,
> > > G_TYPE_STRING,
> > > G_TYPE_STRING,
> > > G_TYPE_INT,
> > > G_TYPE_STRING,
> > > G_TYPE_BOOLEAN, //THE PROBLEM COLUMN
> > > G_TYPE_STRING);
> > >
> > > GtkTreeModel * sort_model;
> > > sort_model = gtk_tree_model_sort_new_with_model(GTK_TREE_MODEL(store));
> > > gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (sort_model),
> > > ID_COLUMN, GTK_SORT_ASCENDING );
> > > tree = gtk_tree_view_new_with_model (GTK_TREE_MODEL (sort_model)); ....
> > > renderer = gtk_cell_renderer_toggle_new ();
> > > column = gtk_tree_view_column_new_with_attributes ("Loaned", 
> > > renderer,"active", LOANED_CHECK_COLUMN, NULL);
> > > g_signal_connect_swapped(G_OBJECT(column),"clicked",G_CALLBACK(sort),(int 
> > > *)LOANED_CHECK_COLUMN);
> > >
> > > gtk_tree_view_append_column (GTK_TREE_VIEW (tree), column); ....
> > >
> > > then I have the callBack:
> > >
> > > static void cell_toggled_callback (GtkCellRendererToggle *cell, 
> > > gchar * path_string, gpointer user_data)
> > > { GtkTreeIter iter;
> > > GtkTreeModel * sort_model;
> > > GtkTreeModel * model;
> > > // tree is static so I get the model out of it..
> > > model = gtk_tree_view_get_model (tree);
> > > if(gtk_tree_model_get_iter_from_string(model, &iter, path_string))
> > > {
> > > gtk_tree_store_set_value (store, &iter, LOANED_CHECK_COLUMN, TRUE );
> > > }
> > > }
> > >
> > > I get:
> > >
> > > (moviecatalog:21175): Gtk-CRITICAL **: file gtktreestore.c: line 912 
> > > (gtk_tree_store_set_value): assertion `VALID_ITER (iter, 
> > > tree_store)' failed
> > >
> > > ANd the toggle is not updated to checked..
> > >
> > > Any clues any one ?
> > >
> > > TIA,
> > > P_s
> > > _______________________________________________
> > > gtk-app-devel-list mailing list
> > > gtk-app-devel-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>
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