Re: NSTableColumn resizing problem

[Andreas Höschler]

Hi Fred,

> > I find it rather difficult to resize columns in a tableview. One has 
> > to
> > really hit the thin line separating two column for being able to do so
> > which seems to be only one pixel wide. How can we make this more
> > tolerant? On Mac OSX this even works if the mouseDown event   3-4 
> > pixels
> > to the left or right of the column separator line?
>
> I think the code for this is in [NSTableHeaverView mouseDown:]. Could
> you please experiment with that and report back suitable pixel values?

Thanks a lot for this hint. I finally found time to look into the 
issue. I am using the value 4 at the marked locations now.

...
 if ([_tableView allowsColumnResizing])
        {
          /* Start resizing if the mouse is down on the bounds of a column. */
        
          if (location.x >= NSMaxX (rect) - 4) // <------- BUST
            {
              if (columnIndex != ([_tableView numberOfColumns]))
                {
                  _resizedColumn = columnIndex;
                }
              else
                {
                  NSLog(@"ohoh");
                }
            }
          else if (location.x <= NSMinX (rect) + 4) // <------- BUST
            {
              if (columnIndex > 0)
                {
                  _resizedColumn = columnIndex - 1;
                }
            }
        }
...

This makes me a happy camper! I recommend these values for the public 
tree.

Regards,

  Andreas