Re: about fillRectangle: aRectangle fillStyle: aFillStyle
Posted by
Stéphane Ducasse on
Feb 10, 2011; 6:43am
URL: https://forum.world.st/about-fillRectangle-aRectangle-fillStyle-aFillStyle-tp3297738p3298669.html
Igor I saw that this was a double dispatch but I imagine that this is not needed to duplicate the exact same code within the
same hierarchy.
Can you have a look?
I will prepare a cs or a slice with all my changes and it would be great to have somebody else having a look.
Stef
> it seems duplicated in
>> pluggableCanvas, canvas and balloonCanvas
>>
>> fillRectangle: aRectangle fillStyle: aFillStyle
>> "Fill the given rectangle. Double-dispatched via the fill style."
>>
>> aFillStyle fillRectangle: aRectangle on: self
>>
>>
>> do you confirm that?
>>
>>
>
> it is a bit tricky. The #fillRectange:fillStyle: is a double-dispatch entry
> actually one could use:
>
> aFillStyle fillRectangle: aRectangle on: self
>
> See a CompositeFillStyle how it works.
>
> The idea was to replace all uses of #doSomething: x color: y
> or #doSomething:border:colorA:colorB:
>
> with #doSomething: x fillStyle: y...
>
> Actually all painting operations could take only two objects: shape
> and fill style.
>
> So, in this respect, a color property of Morph should be a fill style,
> since color can be described as 'solid fill with single color' fill
> style,
> a most simplest possible one.
>
> --
> Best regards,
> Igor Stasenko AKA sig.
>