Re: Another dumb table question

[Graham Samuel]

On Mon, 2 Jun 2003 22:42:54 -0700 (PDT) Jan Schenkel 
<[EMAIL PROTECTED]> wrote:

I wrote:
 > Am I missing something? When I do finally understand
 that the user
 has left one cell and proceeded to another, how can
 I retrieve the
 contents of the cell that the user has just left (on
 the assumption
 > that it's changed)?



Hi Graham,

Sniffing around in the revTable frontScript taught me
that the table-field will not receive arrowKey and
tabKey messages as it handles those directly.
However, you can trap the rawKeyDown in your field
script to find out how the user changed the cell
selection :
--

local sLastSelectedCell

on rawKeyDown pWhichKey
  send "CheckCellChange" to me in 20 milliseconds
  pass rawKeyDown
end rawKeyDown
on CheckCellChange
  put the cREVTable["currentxcell"] of me & comma & \
      the cREVTable["currentycell"] of me into tCell
  if tCell is not sLastSelectedCell then
    -- the selection changed
    put tCell into sLastSelectedCell
    CellSelectionChanged tCell
  end if
end CheckCellChange
on CellSelectionChanged pNewCell
  -- react to the change in cell selection
end CellSelectionChanged
--

Hope this helped,

Wow! I would NEVER have found this out without your intervention. 
The documentation of tables is seriously deficient IMHO - or my idea 
of what a table is for (user input and subsequent manipulation by the 
app's script) is way off somehow. Your info comes from looking under 
the hood in the RR code, which I would think of very much as a last 
resort - I didn't even know there was a revTable frontscript, or that 
the cell references and contents are held internally in an array!

Anyway thanks very much indeed.

Graham
--
-------------------------------------------------------------------
         Graham Samuel / The Living Fossil Co. / UK & France
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