A table view which does not highlight rows but allows the user to
klick checkboxes in a column of said table view.
I have many requests for this ability. Eventually, it will be easier
to do.
To avoid the rows from highlighting, I tried to implement the -
tableView:shouldSelectRow: delegate method and prevent the user from
selecting a row. But if I do so, it is no longer possible to change
the value of the check box in the first column.
Yes -- this is one of the problems. In order for tableview to "track"
a cell, the row has to be selected. Eventually, this limitation may be
changed, allowing one to still select rows, and still click on other
checkboxes without changing the selection. For now, that ability is
rather difficult to achieve without rewriting "mouseDown:".
After some experimentation I found a method that *almost* works. I
do overwrite -_highlightColorForCell: and return [[self window]
backgroundColor].
Okay, a few things. Don't override the private method! How did you
find out that overriding this method would work?
Instead, you should subclass your cell, and override:
1. _highlightColorForCell: is a private method that I really
shouldn't overwrite at all
Yes.
2. NSTableView's highlighting code seems to assume that a
highlighted row is opaque. But I'm using that table view inside a
sheet which is slightly transparent. So - depending on the contents
of the window below - a highlighted row does still look different
from the not highlighted one because it draws its background opaque.
I'm pretty sure that using a nil color will give you what you want. If
not, please let me know more about what you are seeing vs. what you
expect.
thanks,
corbin
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