Marcel Taeumel uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-mt.1706.mcz

==================== Summary ====================

Name: Morphic-mt.1706
Author: mt
Time: 23 October 2020, 11:17:24.216975 am
UUID: bccea572-5cda-db4d-a72a-63f5a8f4e49d
Ancestors: Morphic-eem.1705

Complements Graphics-mt.441

=============== Diff against Morphic-eem.1705 ===============

Item was changed:
  ----- Method: ColorPatchCanvas>>transformBy:clippingTo:during:smoothing: (in category 'drawing-support') -----
  transformBy: aDisplayTransform clippingTo: aClipRect during: aBlock smoothing: cellSize
  	"Note: This method has been originally copied from TransformationMorph."
  	| innerRect patchRect sourceQuad warp start subCanvas |
+ 	aDisplayTransform isPureTranslation ifTrue: [
+ 		^ self
+ 			translateBy: (aDisplayTransform localPointToGlobal: 0 at 0) truncated
+ 			clippingTo: aClipRect
+ 			during: aBlock].
- 	(aDisplayTransform isPureTranslation) ifTrue:[
- 		subCanvas := self copyOffset: aDisplayTransform offset negated truncated
- 							clipRect: aClipRect.
- 		aBlock value: subCanvas.
- 		foundMorph := subCanvas foundMorph.
- 		^self
- 	].
  	"Prepare an appropriate warp from patch to innerRect"
  	innerRect := aClipRect.
  	patchRect := aDisplayTransform globalBoundsToLocal:
  					(self clipRect intersect: innerRect).
  	sourceQuad := (aDisplayTransform sourceQuadFor: innerRect)
  					collect: [:p | p - patchRect topLeft].
  	warp := self warpFrom: sourceQuad toRect: innerRect.
  	warp cellSize: cellSize.
  
  	"Render the submorphs visible in the clipping rectangle, as patchForm"
  	start := (self depth = 1 and: [self isShadowDrawing not])
  		"If this is true B&W, then we need a first pass for erasure."
  		ifTrue: [1] ifFalse: [2].
  	start to: 2 do:
  		[:i | "If i=1 we first make a shadow and erase it for opaque whites in B&W"
  		subCanvas := ColorPatchCanvas extent: patchRect extent depth: self depth.
  		subCanvas stopMorph: stopMorph.
  		subCanvas foundMorph: foundMorph.
  		subCanvas doStop: doStop.
  		i=1	ifTrue: [subCanvas shadowColor: Color black.
  					warp combinationRule: Form erase]
  			ifFalse: [self isShadowDrawing ifTrue:
  					[subCanvas shadowColor: self shadowColor].
  					warp combinationRule: Form paint].
  		subCanvas
  			translateBy: patchRect topLeft negated
  			during: aBlock.
  		i = 2 ifTrue:[foundMorph := subCanvas foundMorph].
  		warp sourceForm: subCanvas form; warpBits.
  		warp sourceForm: nil.  subCanvas := nil "release space for next loop"]
  !