[GRASSGUI] Re: python question - waiting for a variable to change

[Jachym Cepicky]

Hi,

today, I would like introduce few changes to mapdisp.py, which will

a) make it possible to use special p.* command set (e.g. p.rast soils)
b) use exactly what you are desribing here: timer, which is regulary
checking, if something is happening..

on the other hand, I do not think, we should use this kind of code
only there, where it is really needed, because messes the code a bit.

looking at the menuform.py code, we just need to integrate it a little bit more.

I updated menuform.py, see line 342 and in gismutils.py lines 200 and 204

jachym

2007/3/19, Michael Barton <michael.barton at asu.edu>:
>
>  I've run into a little problem that is taxing my neophyte Python
> programming abilities. However we do a popup panel for setting display layer
> options, I think it is necessary to do something along the lines of the
> following....
>
>  1. Start the options popup. This is currently done with a double click on
> the layer, which calls the onActivate even handler. For a raster, the event
> handler uses...
>          drastcmd = menuform.GUI().parseCommand('d.rast', gmpath)
>      ...to start the autogenerated GUI.
>
>  2. When you press the "run" button for this d.* command, the assembled
> command (d.rast + options) is simply returned.
>
>  3. Now drastcmd should contain a complete d.rast command string.
>
>  So, how do I wait in onActivate until the "run" button is pressed on the
> popup and the information is returned to drastcmd (i.e., the value of
> drastcmd is changed). Or, alternatively, how can a change in the value of
> drastcmd generate an event that I can capture and process? I messed around
> with wait() (thinking about tk_wait in TclTk), but couldn't get it to do
> what I wanted.
>
>
>  Michael
>  __________________________________________
>  Michael Barton, Professor of Anthropology
>  School of Human Evolution & Social Change
>  Center for Social Dynamics & Complexity
>  Arizona State University
>
>  phone: 480-965-6213
>  fax: 480-965-7671
>  www: http://www.public.asu.edu/~cmbarton
>
>


-- 
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
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