override -drawRect: in NSTableView; just call [super drawRect:] and don't do 
anything else. Does that fix it?

corbin

On Feb 10, 2011, at 2:51 PM, Eric Gorr wrote:

> I've got a sample project demonstrating the problem:
> 
> http://ericgorr.net/cocoadev/TableViewGridDrawing.zip
> 
> I've included a screen recording showing the problem as well.
> 
> Basically, I need to drawn some vertical column line in a column. Since, in 
> the real case, these lines would be drawn for only some of the columns, I 
> need to completely customize the -drawGridInClipRect: method.
> 
> So,, the problem is that the rightmost line is not always drawn while I am 
> resizing a column and it goes off the right edge and comes back. 
> 
> Whether the last line is drawn or not seems to be dependent upon how fast I 
> am resizing a column.
> 
> If I let the mouse button go and start again, the last line is drawn 
> immediately.
> 
> As best as I can determine there is some kind of caching of the grid lines 
> going on because I can see my drawing code being called, but not see the 
> complete result appear in the table.
> 
> All of the other lines draw as expected.
> 
> I thought it might be a clipping issue, but I do not believe that is the case.
> 
> If anyone has any thoughts, I would be interested.
> 
> Thank you.
> 
> 
> 
> 
> 
> 
> 

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