1. wxEuphoria: delete_tree_item() Not Working
- Posted by euphoric (admin) Apr 15, 2015
- 1075 views
Modify the demo "tree_list_demo.exw" by adding this as the last line of procedure "setup":
delete_tree_item( tree, {} )
When you run the program, there should be an empty tree, but it doesn't clear the list. Shouldn't it?
It's possible I have conflicting DLLs or otherwise faulty setup, but I need confirmation that it's working when everything is set up properly.
Thank you!
EDIT: wxEuphoria_Version is 0.17.0.
2. Re: wxEuphoria: delete_tree_item() Not Working
- Posted by ghaberek (admin) Apr 16, 2015
- 1032 views
I think the documentation for delete_tree_item() is wrong. Here is the code for that function.
void WXEUAPI delete_tree_item(intptr_t tree, object item)
{
//void Delete(const wxTreeItemId& item)
if( IS_SEQUENCE(item) ){
int len = LENGTH( item );
for( int i = 1; i <= len; i++)
((wxTreeCtrl *)tree)->Delete( wxTreeItemId( (void *) get_int( item, i )));
}
else{
((wxTreeCtrl *)tree)->Delete( wxTreeItemId( (void *) get_int( item )));
}
wxDeRef( item );
}
If item is a sequence, it will loop through that sequence deleting the items contained within. If item is not a sequence (i.e. an atom) then it will delete that one item.
If you want to clear a wxTreeCtrl, just delete the root item.
atom root = get_tree_root( tree ) delete_tree_item( tree, root )
-Greg
3. Re: wxEuphoria: delete_tree_item() Not Working
- Posted by euphoric (admin) Apr 16, 2015
- 1022 views
If you want to clear a wxTreeCtrl, just delete the root item.
atom root = get_tree_root( tree ) delete_tree_item( tree, root )
Thanks for the heads-up, Greg. I swear the code I had was working before to clear the tree. Weird!
Your suggestion seems to work for me now. Thank you!
