[Pharo-dev] [ bloc ] I do not understand why some behavior is not in the right place
siguctua at gmail.com
Mon Apr 4 12:56:12 EDT 2016
On 4 April 2016 at 19:00, stepharo <stepharo at free.fr> wrote:
> I saw in bleedingEdge it is different and looks better.
> Now I was wondering why shape did not do the rendering and I thought that
> this is may be because a shape can be used for doing something else
> than rendering. For example clipping or as igor mentioned defining the
> shape of the interaction
> drawOnSpartaCanvas: aCanvas
> "Actually render receiver on aCanvas in local bounds.
> Override to customize.
> aCanvas is an instance of AthensCanvas
> aCanvas must not be nil"
> self assert: self shape path context isNotNil.
> clipPreserveBy: self shape during: [
> aCanvas paintGroup: [
> aCanvas setPaint: self shape fillPaint.
> aCanvas fillPreserve.
> aCanvas paintMode source.
> aCanvas setStrokePaint: self shape strokePaint.
> aCanvas stroke ] ]
where i can download and look at this code?
> unprotectedFullDrawOnSpartaCanvas: aCanvas
> "Draw the full structure on the given Canvas withing drawing bounds
> without caring about any errors and visibility. I am responsible for
> clipping and transforming canvas's path to local coordinates
> to allow simpler actual drawing in drawOnAthensCanvas:
> Additional checks should be implemented in fullDrawOnAthensCanvas:
> aCanvas is an instance of AthensCanvas.
> aCanvas must not be nil.
> @see BlElement>>#fullDrawOnAthensCanvas:
> @see BlElement>>#drawOnAthensCanvas:"
> self shape adaptTo: self.
> self shape path context: aCanvas.
> transform: self transformation
> during: [
> self clippingStrategy
> clip: self
> on: aCanvas
> during: [ self drawOnSpartaCanvas: aCanvas ]
> childrenDuring: [ self drawChildrenOnSpartaCanvas: aCanvas
> ] ]
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