[Cuis-dev] VectorGraphics and Morph

[Juan Vuletich]

On 7/4/2020 5:46 PM, Hilaire Fernandes via Cuis-dev wrote:
> containsPoint: aPoint
>      (super containsPoint: aPoint) ifFalse: [^ false].
>
>      (closed and: [color isTransparent not]) ifTrue:
>          [ ^ (self filledForm pixelValueAt: aPoint - bounds topLeft + 1)>  0].
>
>      self lineSegmentsDo:
>          [ :p1 :p2 |
>          (aPoint onLineFrom: p1 to: p2 within: (3 max: borderWidth+1//2) asFloat)
>                  ifTrue: [^ true]].
>
>      self arrowForms do:
>          [ :f | (f pixelValueAt: aPoint - f offset)>  0 ifTrue: [^ true]].
>
>      ^ false

Hi Hilaire,

The first thing to mention is that PolygonMorph should not inherit from 
RectangleLikeMorph. PolygonMorph is more like M3Exp01Morph, M3Exp02Morph 
and M3Exp03Morph. But these also don't work well yet. Damage areas are 
not reported correctly and morphContainsPoint: doesn't work either.

The VectorGraphicsPasteUpMorph was just a hack to let you play with 
vector graphics drawing, but I guess it is time to clean it up, make it 
usable, and integrate it. Then it will make sense to start building 
things like PolygonMorph in a clean style.

Please give me a few days to work on this.

Cheers,

-- 
Juan Vuletich
www.cuis-smalltalk.org
https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev
https://github.com/jvuletich
https://www.linkedin.com/in/juan-vuletich-75611b3
@JuanVuletich

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