accessing a cell in a table

Welcome to Wrapper,

@+Maarten,

> Message du 11/09/07 10:48

> De : "Florent Arrignon"
> A : [hidden email]
> Copie à :
> Objet : accessing a cell in a table
>
> Hi all,
>
> I'm a beginner in programming and Smalltalk so all my apologies if the question is trivial. :-)
>
> I would like to display a very simple and efficient map based on a Table. The idea would be to change the cell color (background and foreground) according to information contained in the TwoDList. The TwoDList being for example the cells composing a global map.
>
> I created a small interface with only one table in the main window, following the tutorial initialize method. The table is registered as tableTest in the application model. The first step was to try to modify the background color of one cell by pushing an action button named "drawLegend" that launch a method, after the table was initialized.
>
> I tried to use the method in the TableInterface class named backgroundColorAtIndex: index put: aColor in the following way:
>
> self tableTest backgroundColorAtIndex: 1@1 put: #red
>
> When pushing the action button , I receive the following message from the debugger:
>
> unhandled exception: message not understood: #canPaintMedium. This happens in the ScreenGraphicsContext, with paint: paintValue
>
> "paintValue canPainMedium: medium" can not work as medium is anApplicationWindow.
>
> So I believe I was not successful to access to a cell of the table and instead of I accessed to the main window.  I searched in the tutorials but was not able to find it ! Sorry if I missed something evident.
>
> Thanks for your help !
>
> Cheers,
>
> Florent Arrignon
>
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