Re: A problem with PopupButtonCell --- submenu selection not available
Re: A problem with PopupButtonCell --- submenu selection not available
- Subject: Re: A problem with PopupButtonCell --- submenu selection not available
- From: Motti Shneor <email@hidden>
- Date: Mon, 5 Jul 2010 10:31:24 -0400
- Acceptlanguage: en-US
- Thread-topic: A problem with PopupButtonCell --- submenu selection not available
Hello Graham, and thanks a million. That's exactly where i stand.
I don't have a control, only a cell, and I can hardly use the [NSMenu popUpContextMenu] because its visual appearance is different than the desired PopUpButtonCell.
My whole situation is 100% programmatic, no IB or NIB or XIB files involved, as I build menus per-request from some cross-platform data containers I get programmatically.
Setting an Action seems the right way for me, because I only need to record somewhere the selected NSMenuItem* --- that's perfectly enough for me, because all other
data I need is already attached to the NSMenuItem's "representedObject".
One catch though... In my situation, the menus, sub-menus and items are prepared in advance, somewhere-else-in-the-code, where I don't yet know the target and action.
These are only available for me when I'm actually activating the menu.
Oh yeah I can recursively scan the menu and set up the action and target on each item, just before activating the menu --- but this is SO ugly.
I was wondering if there is something on the NSMenu itself I could use to dictate a single target and action for all its menu items?
I saw a mysterious "submenuAction" category property accessor --- can it be of use here? What is the purpose of an NSMenu action?
Thanks again. I already advanced a lot with your help!
On 05/07/2010, at 15:24, Graham Cox wrote:
On 05/07/2010, at 9:32 PM, Motti Shneor wrote:
resultIndex = [popUpButtonCell indexOfSelectedItem]; returns -1 (unknown)
result = [popUpButtonCell selectedItem]; returns nil!
How can I resolve this thing? I MUST have popup menus with sub-menus! Is there a hidden member or method that will tell me what was the last selected menu item?
The pop-up menu control doesn't really work with submenus, but if you bypass the control and just get each menu item to send an action to a target directly, you can do it that way, since the control doesn't actually care that there are submenus, it just doesn't deal with them (and for a pulldown, it doesn't matter as the button's displayed title doesn't change with the menu selection).
This can also work well if the menu has a delegate that populates the menu items, since there's a way to set each menu item's target/action as necessary without too much bother (doing that for a complex menu in IB is very tedious).
Another option is to forget using NSPopUpButtonCell and just write your own view that implements the button part, and show the menu using + [NSMenu (void)popUpContextMenu:(NSMenu *)menu withEvent:(NSEvent *)event forView:(NSView *)view];
--Graham
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Motti Shneor
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Senior Software Engineer
Waves Audio ltd.
Phone: +972-3-6084155
Mobile: +972-54-4470730
[mailto: email@hidden]
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