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ROElement>>mostSpecificParentCommonWith:
by Ben Coman 29 Sep '12

29 Sep '12

I was wanting to better understand how to edges are handled in Roassal and I modified ROElementTest>>testMostSpecificParentCommonWith: as follows to get a visual of how it works.... ----- | el1 el11 el111 el12 el2 el21 view | view := ROView new. el1 := (ROElement spriteOn: 1) + ROLabel. el11 := (ROElement spriteOn: 11) + ROLabel. el111 := (ROElement spriteOn: 111) + ROLabel. el12 := (ROElement spriteOn: 12) + ROLabel. el2 := (ROElement spriteOn: 2) + ROLabel. el21 := (ROElement spriteOn: 21) + ROLabel. el1 add: el11; add: el12. el11 add: el111. el2 add: el21. view add: el1; add: el2. ROGridLayout on: el11 elements. ROGridLayout on: el1 elements. ROGridLayout on: el2 elements. ROGridLayout on: view elements. self assert: (el1 mostSpecificParentCommonWith: el2) == view. self assert: (el1 mostSpecificParentCommonWith: el21) == view. self assert: (el1 mostSpecificParentCommonWith: el11) == view. self assert: (el12 mostSpecificParentCommonWith: el111) == el1. self assert: (el11 mostSpecificParentCommonWith: el111) == el11. "added by ben coman" view open. --- I casually added the last assert and the presumed answer, but the failure which resulted surprised me. Now I'm actually not sure what the result should be, or even whether it makes sense for an edge to be defined between a node and its subnode. I'd be interested in your thoughts. cheers -ben

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ROMondrianFrame
by Ben Coman 29 Sep '12

29 Sep '12

Just for general knowledge, in the context of ROMondrianViewBuilder>>addEdge:, what is the meaning of "frameOfElement" ?

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Re: Maintaining Smalltalk code on multiple platforms
by Stephan Eggermont 28 Sep '12

28 Sep '12

Alexandre wrote: >Doru told me that there is a Monticello importer in VisualWorks, but I haven't tried it. I have. Not so easy to make work. There is a screencast, but it avoids the difficult parts. Stephan

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Re: Maintaining Smalltalk code on multiple platforms
by Stephan Eggermont 27 Sep '12

27 Sep '12

Hi Alexandre, That looks good. I ran into some trouble when trying this with multiple packages. The VW5PackageExporter is very specialized for Seaside. If it notices classes starting with WA or with a superclass starting with WA it adds Seaside to to the imports, and uses a hack on Behavior to add Seaside. visualworksName ^ (#('WA' 'SU' 'CT') includes: (self name copyFrom: 1 to: 2)) ifTrue: ['Seaside.', self name] ifFalse: [self name] I was able to work around that. Stephan

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Mondrian error
by Veronica Isabel Uquillas Gomez 27 Sep '12

27 Sep '12

Hi Alex, I have already planned to migrate my tools to use Roassal... But for now I have to use what we have with Mondrian because we are preparing an evaluation on our tool in Pharo1.4. I suddenly have a problem that I do not know to detect I draw a map with dominanceTreeLayout or forcedBaseLayout. When the layout is dominanceTreeLayout I am getting the red rectangle with the cross. Sometimes i get it immediately or sometimes I see part of the visualization and when i move the scrollbars the red rectangle appears. How can I debug that?, I haven't changed my code and I have no idea what is failing now if I open the same visualization with forcedBaseLayout it works fine. Regards, Veronica

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Maintaining Smalltalk code on multiple platforms
by Stephan Eggermont 27 Sep '12

27 Sep '12

Hi, The code for Roassal works on both vw and Pharo. How is that maintained? Is one version leading, and the other derived from that? I noticed that the VW version has a different package structure (much more flat), and classes have the RO prefix. Or are changes simply performed twice? Or is Roassal an early user of the github based approach advocated by Dale? Stephan

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Re: PetitParser parsing (Windows) end-of-line
by Stephan Eggermont 27 Sep '12

27 Sep '12

>If anybody as a clue on what's happening ... ? Sounds like #newline asParser already matches on cr, and then has a remaining character lf. PPJavaLexicon>lineTerminator ^ (Character lf asParser) / (Character cr asParser , (Character lf asParser ) optional ) Stephan

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PetitParser parsing (Windows) end-of-line
by Nicolas Anquetil 27 Sep '12

27 Sep '12

Trying to parse the 3 possible ends of line: Linux=lf ; MacOS=cr; Windows=crlf given the rule: newline ^ #newline asParser / (#cr asParser , #newline asParser optional) The linux and MacOs tests pass testNewline1 ^self parse: String lf rule: #newline. testNewline2 ^self parse: String cr rule: #newline. But the windows one fails !?!?!?! testNewline3 ^self parse: String crlf rule: #newline. Any clue why? nicolas

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Roassal: ROTranslatingShape - label besides node
by Dennis Schenk 27 Sep '12

27 Sep '12

Hi all, I am trying to place a label besides nodes (and make them stick at their place when dragging them around). Then I saw the ongoing discussion related to RoTranslatingShape, which seems is exactly what I would need. I looked at all the examples and the discussion, but am not able to make it work correctly. What I would want is to create some node, then have a label right at its bottom left side (or top left, or bottom right). The node is not resizable (and its contents, or children, do not change), so that should not be a problem. What I would like to do is simply something like in this image: http://cl.ly/image/3c1e1s15433Q. The difference to the other examples is probably that I already have a node in the view, and then I try to attach the label afterwards. So I have something like this: *testNodeLabeling* * | view rawView nodes node label |* * rawView := ROView new.* * view := ROMondrianViewBuilder view: rawView. * * view shape rectangle size: 100.* * nodes := view nodes: (Array with: 1).* * node := nodes at: 1.* * node translateTo: 20@20. * * label := (ROElement on: 'test') + (ROTranslatingShape new offset: 0 @ 20 negated) + ROLabel.* * rawView add: label.* * view noLayout.* * view open.* How would I now 'attach' this label to the node? Or is this the wrong way to go on about this? Cheers, Dennis

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ROTranslatingShape mouse hotspot mis-alignment
by Ben Coman 26 Sep '12

26 Sep '12

I was trying to apply ROTranslatingShape to produce a label sitting above the children nodes. To understand it better how to get what I need, I made ROExample>>nestingTranslate to show a permutation of the order the shapes can be applied. I have attached a screen snapshot and fileout for this. The case I am particularly interested in is el3. The 'el0' case is the reference without any ROTranslatingShape. When running the example hover near and over the inner elements to view the misalignment of the mouse hotspot. I have marked the approximate offset in green in the snapshot. I notice that the existing call chain goes... ROView>>localElementAt: ROElement>>elementAt: ROElement>>contains: ROElemenet>>bounds ROShape>>extentFor: (union of extent of each shape) It seems to me the hotspot misalignment is related to the translation being applied at the shape draw level whereas the #contains: checking is done at the element level. This relies on the union of the shape extents to set the element bounds, but I can't see how that extent union could be modified to account for the translation - particular in the case of a negative translation since extents throw away information about any negative offset. So I thought perhaps that the element #contains: checking needs might be better chained through the shaped, so that the translation could be applied similar to ROTranslatingShape>>chainedDrawOn:for: and that this would not cause any/much additional computation since all the shapes were being cycled through anyway for #extentFor: Something like... ROView>>localElementAt: ROElement>>elementAt: ROElement>>contains: ROShape>>chainedContains:For: (for each shape) cheers, Ben 'From Pharo1.4 of 18 April 2012 [Latest update: #14457] on 22 September 2012 at 9:41:20 pm'! !ROExample methodsFor: 'nesting' stamp: 'BenComan 9/22/2012 17:04'! nestingTranslate " self new nestingTranslate " | rawView outer el0 el1 el2 el3 el4 el5 el6 el7 el8 | rawView := ROView new @ RODraggable. el0 := (ROElement on: 'el0, border, label') + ROBorder + ROLabel @ RODraggable @ ROLightlyHighlightable. el0 extent: 50@50. 1 to: 4 do: [ :n | el0 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el0 elements . el1 := (ROElement on: 'el1, border, positive translation, label') + ROBorder + (ROTranslatingShape new offset: 0 @ 20) + ROLabel @ RODraggable @ ROLightlyHighlightable. el1 extent: 50@50. 1 to: 4 do: [ :n | el1 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el1 elements . el2 := (ROElement on: 'el2, border, label, positive translation') + ROBorder + ROLabel + (ROTranslatingShape new offset: 0 @ 20) @ RODraggable @ ROLightlyHighlightable. el2 extent: 50@50. 1 to: 4 do: [ :n | el2 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el2 elements . el3 := (ROElement on: 'el3, border, negative translation, label') + ROBorder + (ROTranslatingShape new offset: 0 @ 20 negated) + ROLabel @ RODraggable @ ROLightlyHighlightable. el3 extent: 50@50. 1 to: 4 do: [ :n | el3 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el3 elements . el4 := (ROElement on: 'el4, border, label, negative translation') + ROBorder + ROLabel + (ROTranslatingShape new offset: 0 @ 20 negated) @ RODraggable @ ROLightlyHighlightable. el4 extent: 50@50. 1 to: 4 do: [ :n | el4 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el4 elements . el5 := (ROElement on: 'el5, positive translation, label, border') + (ROTranslatingShape new offset: 0 @ 20) + ROLabel + ROBorder @ RODraggable @ ROLightlyHighlightable. el5 extent: 50@50. 1 to: 4 do: [ :n | el5 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el5 elements . el6 := (ROElement on: 'el6, label, positive translation, border,') + ROLabel + (ROTranslatingShape new offset: 0 @ 20) + ROBorder @ RODraggable @ ROLightlyHighlightable. el6 extent: 50@50. 1 to: 4 do: [ :n | el6 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el6 elements . el7 := (ROElement on: 'el7, negative translation, label, border') + (ROTranslatingShape new offset: 0 @ 20 negated) + ROLabel + ROBorder @ RODraggable @ ROLightlyHighlightable. el7 extent: 50@50. 1 to: 4 do: [ :n | el7 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el7 elements . el8 := (ROElement on: 'el8, label, negative translation, border') + ROLabel + (ROTranslatingShape new offset: 0 @ 20 negated) + ROBorder @ RODraggable @ ROLightlyHighlightable. el8 extent: 50@50. 1 to: 4 do: [ :n | el8 add: (ROElement spriteOn: n) @ ROLightlyHighlightable ]. ROGridLayout on: el8 elements . outer := (ROElement spriteOn: 'outer') addAll: { el0. el1. el2. el3. el4. el5. el6. el7. el8 }. rawView add: outer. ROHorizontalLineLayout on: outer elements. rawView open ! !

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