properties vs local variable

[Peter Haworth]

And pretty soon, he'll back to what the datagrid does :-)  Not that there's
anything wrong with that but there's a crying need for something that fits
between LC's basic table object and the datagrid when the requirements
warrant it.

Pete
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On Mon, Mar 10, 2014 at 5:09 PM, Alex Tweedly <alex at tweedly.net> wrote:

> On 10/03/2014 22:43, Peter Haworth wrote:
>
>> If I remember the genesis of all this correctly, Terence wants to use a
>> table made up of individual fields for each column because, amongst other
>> things, you can't right justify data within a tabstop.
>>
>>  So he does need fields.
>
> He can take advantage of inheritance for backgroundColor and foregroundCoor
>    - create a group per line of display, with the fields for each column
> within it
>
>    - set the colors for the overall group, and only modify those for lines
> which need it (as Mark did earlier)
>
>    - set colors for those lines that need it (and inherit those settings
> for all the columns in that line
>
> I suspect that (along with other improvements earlier) would be enough to
> make any further changes academic - and Terence should be wary of spending
> mor effort on diminishing and unneeded returns.
>
> But if there is still a real performance issue that is visible and
> troubling, then we can start on harder measures.
>
> The original problem was stated in the context of scrolling speed. If that
> is scrolling by page, or to arbitrary scroll settings, that's probably as
> good as we can do. But if the real problem shows up when scrolling
> line-by-line, then we could consider a different approach. Use the "group
> per line of display" as above, but instead of re-writing all the lines of
> data just to scroll one line, simply re-position each line-group, and write
> in new text values for the one line that has to be newly displayed.
>
> -- Alex.
>
>
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