Nicolas Cellier uploaded a new version of Graphics to project The Trunk:
http://source.squeak.org/trunk/Graphics-nice.235.mcz

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

Name: Graphics-nice.235
Author: nice
Time: 29 September 2013, 2:38:15.212 am
UUID: dc85806a-22af-482b-b058-88acc8259764
Ancestors: Graphics-nice.234

Correct this glitch: when a text was centered or right flush, clicking at the very left of text morph would incorrectly position the text cursor.

=============== Diff against Graphics-nice.234 ===============

Item was changed:
  ----- Method: CharacterBlockScanner>>characterBlockAtPoint:index:in: (in category 'scanning') -----
  characterBlockAtPoint: aPoint index: index in: textLine
  	"This method is the Morphic characterBlock finder.  It combines
+ 	MVC's characterBlockAtPoint:, -ForIndex:, and buildCharacterBlockIn:"
- 	MVC's characterBlockAtPoint:, -ForIndex:, and buildCharcterBlock:in:"
  	| runLength lineStop stopCondition |
  	line := textLine.
  	rightMargin := line rightMargin.
  	lastIndex := line first.
  	self setStopConditions.		"also sets font"
  	characterIndex := index.  " == nil means scanning for point"
  	characterPoint := aPoint.
  	(characterPoint isNil or: [characterPoint y > line bottom])
  		ifTrue: [characterPoint := line bottomRight].
+ 	destX := leftMargin := line leftMarginForAlignment: alignment.
+ 	destY := line top.
+ 	(text isEmpty or: [(characterPoint y < destY or: [characterPoint x < destX])
- 	(text isEmpty or: [(characterPoint y < line top or: [characterPoint x < line left])
  				or: [characterIndex notNil and: [characterIndex < line first]]])
  		ifTrue:	[^ (CharacterBlock new stringIndex: line first text: text
+ 					topLeft: destX at destY extent: 0 @ textStyle lineGrid)
- 					topLeft: line leftMargin at line top extent: 0 @ textStyle lineGrid)
  					textLine: line].
- 	destX := leftMargin := line leftMarginForAlignment: alignment.
- 	destY := line top.
  	runLength := text runLengthFor: line first.
  	lineStop := characterIndex	"scanning for index"
  		ifNil: [ line last ].			"scanning for point"
  	runStopIndex := lastIndex + (runLength - 1) min: lineStop.
  	lastCharacterExtent := 0 @ line lineHeight.
  	spaceCount := 0.
  
  	[
  		stopCondition := self scanCharactersFrom: lastIndex to: runStopIndex
  			in: text string rightX: characterPoint x
  			stopConditions: stopConditions kern: kern.
  		"see setStopConditions for stopping conditions for character block operations."
  		self lastCharacterExtentSetX: (specialWidth
  			ifNil: [font widthOf: (text at: lastIndex)]
  			ifNotNil: [specialWidth]).
  		self perform: stopCondition
  	] whileFalse.
  	characterIndex
  		ifNil: [
  			"Result for characterBlockAtPoint: "
  			(stopCondition ~~ #cr and: [ lastIndex == line last
  				and: [ aPoint x > ((characterPoint x) + (lastCharacterExtent x / 2)) ]])
  					ifTrue: [ "Correct for right half of last character in line"
  						^ (CharacterBlock new stringIndex: lastIndex + 1
  								text: text
  								topLeft: characterPoint + (lastCharacterExtent x @ 0) + (font descentKern @ 0)
  								extent:  0 @ lastCharacterExtent y)
  							textLine: line ].
  				^ (CharacterBlock new
  					stringIndex: lastIndex
  					text: text topLeft: characterPoint + (font descentKern @ 0)
  					extent: lastCharacterExtent - (font baseKern @ 0))
  							textLine: line]
  		ifNotNil: ["Result for characterBlockForIndex: "
  				^ (CharacterBlock new
  					stringIndex: characterIndex
  					text: text topLeft: characterPoint + ((font descentKern) - kern @ 0)
  					extent: lastCharacterExtent)
  							textLine: line]!