Squeak-dev April 2011

squeak-dev@lists.squeakfoundation.org

80 participants
387 discussions

re: Squeak Port for Android: Update
by Stan Shepherd 29 Apr '11

29 Apr '11

Dimitry Golubovsky wrote Hi, I am glad to announce that the Squeak Port for Android Tablets [1] has reached its first milestone. ... Thanks Dimitry, great work. 33684210 bytecodes/sec 1128189 sends/ sec Samsung galaxy tab 7" ...stan (tried to reply on the vm list, but I'm not registered) -- View this message in context: http://forum.world.st/re-Squeak-Port-for-Android-Update-tp3483853p3483853.h… Sent from the Squeak - Dev mailing list archive at Nabble.com.

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Installing Seaside on 4.2 all-in-one
by Lawson English 29 Apr '11

29 Apr '11

Has anyone besides me tried to use the Extending Squeak installer scripts to install Seaside? Don't seem to work any more. Lawson

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The Inbox: Morphic-nice.531.mcz
by commits＠source.squeak.org 29 Apr '11

29 Apr '11

A new version of Morphic was added to project The Inbox: http://source.squeak.org/inbox/Morphic-nice.531.mcz ==================== Summary ==================== Name: Morphic-nice.531 Author: nice Time: 29 April 2011, 9:44:35.371 am UUID: 1e81083b-8ec1-4a0b-b1ba-5c201990e70e Ancestors: Morphic-ul.530 Quick hack (#fixAlpha) to fix this bug: ((TextStyle defaultFont characterFormAt: $T) magnifyBy: 16) asMorph imageForm asMorph openInWorld This workaround just adds noise and don't solve the root cause. Anyway, invoking #translucentImage: with a non translucent argument just because an #isOpaque flag was not set in an ImageMorph is worth a refactoring IMHO =============== Diff against Morphic-ul.530 =============== Item was added: + ----- Method: FormCanvas>>translucentImage:at:sourceRect: (in category 'drawing-images') ----- + translucentImage: aForm at: aPoint sourceRect: sourceRect + "Workaround because copying 16bits->32bits image does not fill the alpha channel" + super translucentImage: aForm at: aPoint sourceRect: sourceRect. + aForm isTranslucent ifFalse: [form fixAlpha]!

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PNG export problem
by Nicolas Cellier 29 Apr '11

29 Apr '11

This code seems to work: PNGReadWriter putForm: ((TextStyle defaultFont characterFormAt: $T) magnifyBy: 16) onFileNamed: 'T1.png'. This one produces a fully transparent image (at least in mac finder and firefox renderers): PNGReadWriter putForm: ((TextStyle defaultFont characterFormAt: $T) magnifyBy: 16) asMorph imageForm onFileNamed: 'T2.png'. Though a FileList is able to display a preview of the image for both files, importing with: Form openImageInWindow: (FileDirectory default / 'T2.png') fullName. just leave a transparent image in upper corner... While Form openImageInWindow: (FileDirectory default / 'T1.png') fullName. works as expected... Any clue ? Nicolas

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Problem with Pen class Squeak 4.2 update #10977 on OSX
by Chris Wright 29 Apr '11

29 Apr '11

Hi folks I posted this to the beginners' list OSX 10.6.7 Intel Squeak 4.2 update #10977 running the example from the Pen class Display restoreAfter: [Pen new squareNib: 2; color: Color red; turn: 45; print: 'The owl and the pussycat went to sea in a beautiful pea green boat.' withFont: TextStyle defaultFont] draws a patterned red line at the correct angle, but with no recognisable text. same problem with the "Terse guide to squeak" Pen example. I'm not sure where to look to see if this is a known problem... and if there's a fix :? and received the following reply from Jerome Peace (thanks!) I tried your code in a 4.3 squeak and got your described results. Went back to a 3.9 squeak and got the results expected with the printing actually working. So I suspect there is a problem. I suspect it is not known. I wonder if the problem is that color is now setting both foreground and background. I am not actively doing bug tracking in squeak right now. So hopefully someone else will look to see what changed. Anyway you have found a real bug. A good place to note it would be on the squeak-dev list and the mantis bug tracker. http://bugs.squeak.org/view_all_bug_page.php So, I'm posting, as instructed! cheers Chris

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The Inbox: Graphics-nice.181.mcz
by commits＠source.squeak.org 29 Apr '11

29 Apr '11

A new version of Graphics was added to project The Inbox: http://source.squeak.org/inbox/Graphics-nice.181.mcz ==================== Summary ==================== Name: Graphics-nice.181 Author: nice Time: 29 April 2011, 2:35:20.972 am UUID: 501ef332-95aa-4ea6-bb4c-74a4a6b884ff Ancestors: Graphics-ul.180 Horrible hack to let Pen>>print:withFont: work with an antialiased font if ever character form depth is 16 or 24. The hack hopefully works with legacy depth 1 fonts. Though, the result won't be that nice, letters being rendered by replacing nice antialiasing shadows with dumb thick monochrome paths. Not sure the whole hack is worth ! =============== Diff against Graphics-ul.180 =============== Item was changed: ----- Method: Pen>>print:withFont: (in category 'operations') ----- print: str withFont: font "Print the given string in the given font at the current heading" | lineStart scale wasDown | scale := sourceForm width. wasDown := penDown. lineStart := location. str do: + [:char | - [:char | | charStart pix rowStart form bb | char = Character cr ifTrue: [self place: lineStart; up; turn: 90; go: font height*scale; turn: -90; down] ifFalse: + [ | charStart pix rowStart form bb backgroundCode | + form := font characterFormAt: char. + backgroundCode := 1<< (form depth // 3 * 3) - 1. - [form := font characterFormAt: char. charStart := location. wasDown ifTrue: [ self up; turn: -90; go: font descent*scale; turn: 90; down. 0 to: form height-1 do: [:y | rowStart := location. bb := BitBlt current bitPeekerFromForm: form. pix := RunArray newFrom: ((0 to: form width-1) collect: [:x | bb pixelAt: x@y]). pix runs with: pix values do: [:run :value | + value = backgroundCode - value = 0 ifTrue: [self up; go: run*scale; down] ifFalse: [self go: run*scale]]. self place: rowStart; up; turn: 90; go: scale; turn: -90; down]. ]. self place: charStart; up; go: form width*scale; down]. ]. wasDown ifFalse: [self up] " Display restoreAfter: [Pen new squareNib: 2; color: Color red; turn: 45; print: 'The owl and the pussycat went to sea in a beautiful pea green boat.' withFont: TextStyle defaultFont] "!

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What gives? OpenQWAK????
by Lawson English 28 Apr '11

28 Apr '11

http://code.google.com/p/openqwaq/ ? Lawson

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RFB change request
by Chris Cunnington 28 Apr '11

28 Apr '11

Hi Ian, This code: RFBSession>>#unimplemented "Make some noise when encountering an unimplemented feature. Strictly developer lossage." self log: 'unimplemented'. "Smalltalk beepPrimitive." Transcript endEntry has a slight difference than the method you wrote. Using Smalltalk instead of, I think, SmalltalkImage is throwing an error with your latest SqS RFB in 4.2. Your code hasn't changed, but Squeak has. Last year there was a whole issue of whether to use Smalltalk or SmalltalkImage. It got fancy, Andreas consolidated some things, consulted the community, etc. From my point of view, if I am to use RFB, then I have to comment out this line every time I download it from SqS before it will work for me. If I you could make some kind of change to your satisfaction, so I don't have to do this, I'd appreciate it. Thanks, Chris

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Tool problem: flattenHierarchy...
by Chris Muller 28 Apr '11

28 Apr '11

Sorry, I can't work on this - to reproduce, 1) browse implementors of chooseInstVarThenDo: 2) try to spawn a hierarchy from the opened MessageSet. After a longish pause, a debugger opens; nil is getting into the hierarchy. - Chris

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Workspace code to Web example (was What gives? OpenQWAK???? )
by Chris Cunnington 28 Apr '11

28 Apr '11

Of the many cool things Eliot displayed in Lille from his workshop (full image simulator; image reading from stdin) was how he makes code examples for his blog. It's #saveBlogHtmlInFile/#saveHtmlInFile and is added to the Workspace menu. Not as big as the other things, but useful. http://www.smalltalktelevision.com/Workspace.html OpenQwaq-1.0.01.image Workspace>>#saveBlogHtmlInFile Groovy. Chris

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