[Gambas-user] painting graph to image continuously

wally wally at ...2037...
Sat Dec 18 15:35:13 CET 2010


On Saturday 18 December 2010 14:44:22 Fabien Bodard wrote:
> ok wally this is the full demo of what you want to do, and what you
> need to do for that. I use like often in gambas
> a data/view model ... the drawingarea is just a viewer for the data
> and the _draw event contain the rules do draw the datas.
> The datas are stored in an array $aDatas.
> 
> The Timer emulate the datas entry
> 
> 2010/12/18 Fabien Bodard <gambas.fr at ...626...>:
> >> Fabian,
> >>
> >> yes, you are right, this may be a problem.
> >> I will try to collect the data as short as possible in a data-array
> >> and display always only the graph of a segment of this array.
> >> Your DemoGraph was helpful to see how the _draw event is
> >> used and i'll try this way too.
> >> But for now i would like to know how the DrawingArea.Resize
> >> works internally and why there are differences in GB2 and GB3.
> >>
> >> wally
> >>
> >
> > Resize is a procedure inherited from control ... it just resize the
> > controle ... but can have conflict with autoarrangement.
> >
> >
> >
> > --
> > Fabien Bodard
> >
> 
> 
> 
> -- 
> Fabien Bodard
> 


Fabian,

thanks a lot for your hits and deno files !  :)

Please have a look on the attached design and let me know your opinion 
about this. Draw is little more ugly than paint or cairo but i can live with 
that  (for now) 

wally

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