Re: problem with raster

[mcmullin]

On  6 Mar, Kevin Crowston wrote:
> I'm trying to draw a network on a Raster widget.  I'm running into a few
> problems.
[...]
> 
> The major problem is the getHeight and getWidth always return 3 instead of
> the actual height and width of the Raster.  I tried intercepting these
> calls using gdb to return 300 instead of 3 and it worked okay.  Clearly
> this isn't a problem for Heatbug, but I'm not sure what I'm doing
> differently or not doing right.


Funnily enough I ran into this precise thing just
yesterday.  I have not investigated carefully enough
yet, but it seems that Raster simply inherits getHeight
& getWidth from Widget (whereas, it overrides
setWidth:Height: which seems a bit suspicious).
Anyway, I hacked my local Raster.m (i.e. I made a copy
local to my app) and added the following code:

-(unsigned) getWidth {
  return width;
}

-(unsigned) getHeight {
  return height;
}

This overrides the Widget methods and returns values
taken from Raster specific instance vars.  This
*seemed* to fix the problem for me - your mileage may
vary!  And, of course, it needs more work to decide
whether this is really the "correct" thing to do...

- Regards,

Barry.

-- 

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| Barry McMullin, ALife Group,               |    address@hidden |
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