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[REBOL] Re: Spreadsheet

From: agem:crosswinds at: 4-Mar-2001 7:41

>>>>>>>>>>>>>>>>>> Ursprüngliche Nachricht <<<<<<<<<<<<<<<<<<
Am 04.03.01, 01:24:20, schrieb "Brett Handley" <[brett--codeconscious--com]> zum Thema [REBOL] Re: Spreadsheet:
> The thought occurred to me. I actually did come across a situation
where we
> wanted to provide spreadsheet functionality but in a very constrained > manner. The reason being that the users were already using
spreadsheets and
> were very nervous about causing errors. So they wanted a custom
> instead, but they needed flexibility in how to define a calculation. > We never did that app, because we were going to get a "better bang for
> by doing other things first. > Anyways my thoughts about doing this with Rebol: > 1) Need to build a grid based entry interface style. Once done, very
> for other Rebol applications. > 2) Need to code a graph sorting algorithm that gets as input the > dependencies between cell calculations.
How much calculatios would be needed? Is a left-right/up-bottom complete calculation really to slow? Because you can enter simply rebol-code in cells, and then dependency-chcking is hard..
> 3) Need to provide all the little user-interface niceties that people
expect as a seldom spreadsheet-user, what do they expect? Copy/paste of areas/formulas? Or would a rebol-loop accessing cells are enough?
> from spreadsheet applications. > 4) Aim to keep as much power of Rebol as possible accessible to user
> parts of the spreadsheet. > I think (1) is the most reusable for other applications. (2) is an > interesting problem to solve. > (3) may actually be the most amount of work in the project - users
expect a
> lot! > but (4) is a good justification for a Rebol powered spreadsheet -
> programming can be made visual... > Brett.