On Tuesday 01 July 2003 10:46 pm, Joel Shellman wrote:
> How would one draw an image in Squeak pixel by pixel
> (programmatically)? I saw that generally you would subclass Morph
> or MorphForm or something like that and then override the #drawOn
> method, but I couldn't find anything in Canvas that would allow me
> to write a specific pixel. It only had lines, rectangles, fills and
> such.

Well, a pixel is only a rectangle of extent 1, right?

You can also use a bitBlt operation to a Form, then paint/stencil that 
form to the canvas in your drawOn:.

If you're doing a lot of pixels, consider keeping around your own 
poker and color map (if they're going to be the same color, 
especially)..

poker := BitBlt current bitPokerToForm: myForm.
pixelValue := self pixelValueFor: aColor.

then for many pixels...

poker pixelAt: aPoint put: pixelValue.

-- 
Ned Konz
http://bike-nomad.com
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