Re: NSForm from NSFormCell
Re: NSForm from NSFormCell
- Subject: Re: NSForm from NSFormCell
- From: Negm-Awad Amin <email@hidden>
- Date: Fri, 8 Aug 2008 20:51:10 +0200
Am Fr,08.08.2008 um 20:22 schrieb Kurt Sutter:
I have a series of NSFormCell objects in an NSForm.
Given the NSFormCell object, is there a way to get the corresponding
NSForm object?
More specifically: I have added an class extension to NSFormCell,
which does some operations on the form cell. One of the operations
requires the method to select the form cell, and the method would
therefore like to call selectTextAtIndex of the owning NSForm.
However, all I have is "self" of the NSFormCell, and I have no clue
how to obtain the NSForm object therefrom.
Any advice?
1. Probably you have to change a part of your design. Cells are like
stamps or templates for drawing and user events. "Belonging" is a
term, which is a littlebit strange for a cell. This is the reason for
passing the concrete view as a argument to several messages, i. e. -
drawWithFrame:inView:. Of course, any cell belongs to a view (control)
in reality, but not by structure.
2. However you can add a property to the cell (you have a subclass)
and set it in a subclass of NSFormCell or from outside. As said, this
is not the intended structure.
3. I've seen – do not ask me where, pls – that some people remember
the view through the last -drawWithFrame:inView: message. IMHO this
is worse.
Amin
Kurt
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Amin Negm-Awad
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