Re: My own listbox
Re: My own listbox
- Subject: Re: My own listbox
- From: Boris Remizov <email@hidden>
- Date: Sat, 2 Aug 2008 13:53:33 +0400
To draw custom rows you should implement your ownNSCell class and set
it to your
NSTableView's column with IB or programmatically (invoke
NSTableColumn's setDataCell).
But if your control is 'really' so much 'Custom' and you decide that
NSTableView is not sufficient
for your purpose, to allow NSScrollView to correctly scroll your view,
easy setFrameSize of the one
to correct value (to bound all content). That is sufficient.
On Aug 2, 2008, at 12:40 PM, Vitaly Ovchinnikov wrote:
The problem is that my control will work like listbox, but don't
exactly. Actually I need to draw every row myself. And these rows will
have some padding and many graphics stuff inside. And they will have
adjustable height... And so on.
I don't think that it is possible to do this with standard controls.
Am I wrong?
On Sat, Aug 2, 2008 at 1:33 PM, Boris Remizov <email@hidden>
wrote:
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