Re: My own listbox
Re: My own listbox
- Subject: Re: My own listbox
- From: Boris Remizov <email@hidden>
- Date: Sat, 2 Aug 2008 13:33:07 +0400
Hello,
You shouldn't do this over work by implementing your own Control. You
may use
NSTableView or NSOutlineView instead. These visual classes allow to
implement
ListBox's look-and-feel and behavior in much much easier manner.
On Aug 2, 2008, at 12:21 PM, Vitaly Ovchinnikov wrote:
Hello,
In windows there is a control called "Listbox". It looks like grid
with single column without header. Several rows and maybe a scrollbar.
Example is here:
http://www.java2s.com/Tutorial/VBImages/ListBoxSelectionEventAddValue.PNG
I need to create control that works similar way. It will not be
actually a listbox, but it will work the same way: few objects - rows
and an optional scrollbar. As a "good" cocoa programmer I derived
NSControl and implemented -drawRect to draw my own rows. Then I put
this control to the window in Interface Builder and embed it into
NSScrollView. Here the problem starts. How can I tell NSScrollView
what size does my control have? I tried to implement -bounds and
-frame methods, but scroller became crazy. I tried this code:
- (NSRect) frame
{
NSRect rc = [super frame];
rc.size.height = number_of_rows * height_of_row;
return rc;
}
- (NSRect) bounds {.. the same..}
NSScrollView shows scrollbar with correct proportions, but then I drag
it - it scrolls my control to the wrong direction. I tried to play
with -isFlipped - no success.
So I need some similar source to take a look for what I missed. Does
anybody have one?
Thank you.
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
| References: | |
| | >My own listbox (From: "Vitaly Ovchinnikov" <email@hidden>) |