Hi subject says it all. It does not look like I can do it. (Of course I feel this is a bad case of RTFM, but I thought I'd ask) I want to pop up a menu on the right clicking an item in the tree-view. Thanks Marco -- Marco Antoniotti http://bioinformatics.nyu.edu NYU Courant Bioinformatics Group tel. +1 - 212 - 998 3488 715 Broadway 10th FL fax. +1 - 212 - 998 3484 New York, NY, 10003, U.S.A.
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> Subject: Re: How do you handle a right click on a capi:tree-view?
> Yes, chapter 7 of the CAPI User Guide.
>
> (defun marco-menu (pane data x y)
> (make-instance 'capi:menu :items
> (list "Hi"
> "Marco"
> "See
> http://www.lispworks.com/reference/lw44/CAPUG-W/html/capiuser-
> w-82.htm")))
>
> (capi:contain
> (make-instance 'capi:tree-view
> :pane-menu 'marco-menu
> :roots '(1 2 3)))
That's great. I've been wanting it for ages but didn't know it
existed.
With this...
(defun marco-menu (pane data x y)
(make-instance 'capi:menu
:items (list "Hi"
"Marco"
data)))
(capi:contain
(make-instance 'capi:tree-view
:pane-menu 'marco-menu
:roots '(1 2 3)))
.... the pane menu includes something that depends on which item
was clicked on.
But if I use a CAPI:LIST-PANEL instead of a CAPI:TREE-VIEW...
(capi:contain
(make-instance 'capi:list-panel
:pane-menu 'marco-menu
:items '(1 2 3)))
.... the DATA argument to MARCO-MENU always has a value of NIL.
Is that a bug?
(Using LWW 4.3.7.)
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> > With this... > > > > (defun marco-menu (pane data x y) > > (make-instance 'capi:menu > > :items (list "Hi" > > "Marco" > > data))) > > > > (capi:contain > > (make-instance 'capi:tree-view > > :pane-menu 'marco-menu > > :roots '(1 2 3))) > > > > ... the pane menu includes something that depends on which item > > was clicked on. > > > > But if I use a CAPI:LIST-PANEL instead of a CAPI:TREE-VIEW... > > > > (capi:contain > > (make-instance 'capi:list-panel > > :pane-menu 'marco-menu > > :items '(1 2 3))) > > > > ... the DATA argument to MARCO-MENU always has a value of NIL. > > Is that a bug? > > Yes, thanks for reporting it. We'll look into fixing it. > > The other way of specifying a popup menu is more powerful and I think > you could use it to get the functionality you want. Hmmm, I'm not sure. The other way of specifying a popup menu seems to have no way of knowing which item was the subject of a right-click. Or am I missing something? To expand on the above: Right-clicking doesn't change the selection. After right clicking an item that is not the selection it initially looks as though the selection has changed, but after the menu is dismissed the selection highlighting reverts to the real selection. Well, that's true for the tree view, and the value of DATA in MARCO-MENU is the item that was clicked on. (The write-up in the CAPI User Guide is confusing because it says that DATA is "the selected object if there is a selection".) However, for the list-panel right-clicking an item that is not the selection does not change the highlighting in the same way. BTW, I think the tree view is doing The Right Thing. Simon
I wrote: > Right-clicking doesn't change the selection. After right clicking > an item that is not the selection it initially looks as though > the selection has changed, but after the menu is dismissed the > selection highlighting reverts to the real selection. Rather than "after the menu is dismissed", I meant to say "after a menu item is chosen". The same observation holds if the menu is "dismissed" by clicking away from it, but that's not what I was trying to say. Simon
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