Fl_Tree

[holm.h...@gmail.com]

Hello,

Is it possible to make Fl_Tree repond (callbakc) to right-mouse-click ?

Best regards
Håvard

[lifeatt...@gmail.com]

>Is it possible to make Fl_Tree repond (callbakc) to right-mouse-click ?

Yes. Create a class derived from Fl_Tree, add a custom handle() override, examine the FL_PUSH event, and check for

Fl::event_button() == FL_RIGHT_MOUSE

[holm.h...@gmail.com]

Hi,

Still having problems, I write my handle function:
int ERS_Tree::handle(int e){
  int ret;
  if ( (e==FL_PUSH) && (Fl::event_button() == FL_RIGHT_MOUSE))
      My_Tree_cb(this, NULL);
  ret Fl_Tree::handle(e);
  return ret;
}

In my My_Tree_cb, I call:

   Fl_Tree_Item *item;

   item   = w->callback_item();

item is however not pointing to the item which I clicked.

I have missed something - but what ?

Best regards
Håvard

[lifeatt...@gmail.com]

>item is however not pointing to the item which I clicked.

I'm just looking at the FL_Tree handle() code. To find the active item, it calls:

 Fl_Tree_Item *item = _root->find_clicked(_prefs, 0);

_root and _prefs look like they won't be accessible so you'll need to use the accessor methods.

[Philip Rose]

Could you call the Fl_Tree::handle() before the callback is invoked? That would make sure the active item gets identified and there might be other stuff that gets done.

 

Phil.

 

Sent from Mail for Windows 10

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[holm.h...@gmail.com]

Thanks !

Your hint to "find_clicked" made my day !

Best regards
Håvard

[lifeatt...@gmail.com]

[trying again, Google Group messed up my reply]

>Could you call the Fl_Tree::handle() before the callback is invoked? That would make sure the active item gets identified and there might be other >stuff that gets done.

Good idea but alas, it won't work. Fl_Tree::handle() only calls find_clicked() for FL_LEFT_MOUSE events ...