November 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Render images - Porting from Cincom VW to Pharo

by Emilia

Thank you guys, i'll see what I can do :) 2012/11/12 Sven Van Caekenberghe <sven(a)stfx.eu> > > On 12 Nov 2012, at 14:54, Emilia <maemco4(a)gmail.com> wrote: > > > Hello! I'm porting code from Cincom Smalltalk to Pharo. It's a web > application so I've got several WAComponent instances and one component > which inherits from WAFileLibrary that renders images. > > In the original code ( the one that runned in VW) i had the following > instance method in the component that inherits from WAFileLibrary: > > > > logoJpg > > ^ByteArray asPackagedString: '?=#?8@@PR$YIQ @A@ D@X@A > @@C?8P))QW!)Y @@RT$*@@ @@@@G@AHA@0@......etc etc' > > > > But now when i run it in Pharo the debbugger doesn't recognize > #asPackagedString: message. > > > > Does anyone know which method should I use in order to render that image? > > > > Thanks in advance! > > Mercy beaucoup! > > > > Emilia > > You could try to port ByteArray class>.#asPackagedString: from (VW?) to > Pharo Smalltalk. It can't be that hard - is there a spec for this format ? > > -- > Sven Van Caekenberghe > http://stfx.eu > Smalltalk is the Red Pill > > > > >

Nov. 14, 2012

Re: [Pharo-project] Render images - Porting from Cincom VW to Pharo

by Emilia

Thank you so much Torsten, very clear explanation and it worked :) 2012/11/12 Torsten Bergmann <astares(a)gmx.de> > >It's a web application so I've got several WAComponent instances > > The #asPackagedString: is VW specific and not available > in Pharo. In Seaside on Pharo the resources like pictures > are stored in methods returning a ByteArray > with the bytes only. > > There is an easy way: just save the original resources from VW > (for instance the JPG) in a folder and then reimport them again > into the Pharo based Seaside image. > > Example: > So you are using Seaside and have a subclass of WAFileLibrary > for your own resources (for instance MyFileLibrary) > > Just open http://localhost:8080/config/files and select > the Library (here "MyFileLibrary") and click on "Configure". > > Now you can upload the JPG again using the web interface > and Seaside is (re)generating the method on class > MyFileLibrary which should look like > > logoJpg > ^#(1 2 3 ...) asByteArray > > containing the bytes that represent the JPG. > > If you have more than one you should note that the superclass of > WAFileLibrary which is WAAbstractFileLibrary in latest Seaside > provide some utility methods to automate importing of resources. > > Check for #addAllFilesIn: and #addFileAt: on the class side. > > Bye > T. > > > > > > > > > > > > >

Nov. 14, 2012

[Pharo-project] [update 2.0] #20397

by Marcus Denker

20397 ----- Issue 6375: OCompletion uses a lot of memory http://code.google.com/p/pharo/issues/detail?id=6375 Issue 6966: LogForImplementor is empty and unused http://code.google.com/p/pharo/issues/detail?id=6966 Issue 6968: temps are note printed in PharoDebug.log http://code.google.com/p/pharo/issues/detail?id=6968 Diff information: http://ss3.gemstone.com/ss/Pharo20/NOCompletion-MarcusDenker.30.diff http://ss3.gemstone.com/ss/Pharo20/Kernel-MarcusDenker.1245.diff -- Marcus Denker -- http://marcusdenker.de

Nov. 14, 2012

[Pharo-project] [Pharo-Project] About new TxText text model

by Denis Kudriashov

Hello. I look deep at TxText package where Igor and Camillo introduced new text model. Text model based on sequence of span objects. There are now two kind of spans: CharacterSpan and LineSeparator. Each span has reference to next and previous spans. There is TxSelection object which contains cursor. So you can insert new text at cursor, you can cut selection, replace selection with another text. Such maniulation changes text model structure. It can create new span objects. It can split current span at cursor position, It can remove selected spans. Also you can move cursor up, down, left, right. Cursor always know about current span and span position. I like design :). And I want use this package. And I have questions and suggestions: 1) Cursor is end of selection object. So now when you move cursor selection changed, because start of selection stay same. Am I right? I think cursor movement should always reset selection. It is what we see with basic text editors. But cursor now is just instance of TxPosition which implements simple position protocol (move left, up...). It just change current span and span position by movement. TxPosition knows nothing about TxSelection object. That's why I think Cursor class should be introduced here which alway reset text selection by any move. And if you want to change selection bounds just get explicitly start or end of selection and use position api. What do you think? 2) Next question about changes notification of text model. First I want Cursor and Selection objects are annnouncers. So I can implement CursorPresenter and SelectionPresenter to show such objects and handle changes. For example when CursorMovedAnnouncement happen I can move cursor caret morph at appropriate position. Another idea is make span objects announcers. Maybe it is not good idea but I want to subscribe at SpanAdded, SpanRemoved. SpanChanged, SpanSplitted. With such events I can make very simple implementation of TextEditor as list of SpanMorph's. Maybe it is not optimized solution but I think it is most simple thing. So I want to try it. 3) What about auto wrap behaviour? If you have auto wrap option at text editors you have line width restriction. And you should spit real lines of text to visual lines which satisfed this restriction. And text mode should know about such restriction because any text insertion can require new visual lines creation. I think insertion single line text at span position should be executed by special "restriction object". It should return new characters of span which satisfied that restriction. And it should return new span object (or just remains characters) which will present new visual lines. Then this "remains characters" should be inserted to next span at 0 position. When wrap behavior not needed "restriction object" just inserts new text into current characters at given position and returns result. If you agree about such logic please suggest good name for such "restriction object" and instance variable where it will placed (at TxModel I think) Ok, now what do you think about all this? I want implement all my suggestions. But first I want listen your opinions. Best regards, Denis

Nov. 14, 2012

[Pharo-project] [ANN] Pharo Online Help 1.0

by Torsten Bergmann

It should be a pluggable design similar to current help system so one can write in wikistyle, html, markdown, ... But we need one default. I like Markdown too - but do we have some lean code to parse or just transform it to HTML. The help system should be relative small - so it can be delivered with the default image. Dont know about current dependecies of PetitParser and friends. Bye T.

Nov. 14, 2012

Re: [Pharo-project] [ANN] Pharo Online Help 1.0

by Igor Stasenko

my 2c markdown is not too rich as html.. but: - it is easy to write markdown documents - the text stays readable even without translating/formatting markdown.. which is cool -- Best regards, Igor Stasenko.

Nov. 14, 2012

[Pharo-project] How to force selection update in the debugger?

by Eliot Miranda

Hi All, I submitted a run until feature for the debugger to the Squeak inbox recently and would commit it to trunk except that I'd like the option of having the selection update on each step. But I can't see how to do that. I *think* selection update is done with a callback here in Debugger>>contents:selection: Smalltalk isMorphic ifTrue: [World addAlarm: #changed: withArguments: #(contentsSelection) for: self at: (Time millisecondClockValue + 200)]. And I'm not sure how this causes the selection to update. Is it part of text morph draw or a separate thing? This is too convoluted to look through. So perhaps someone can help e. If I want the selection to redraw what's the minimum action necessary. This is as part of a loop that looks like [self selectedContext == context and: [(value := receiver with: context executeMethod: method) == false]] whileTrue: [self doStep]. i.e. after the doStep I'd like to force the code pane to update its selection. AdvThanksance -- best, Eliot

Nov. 14, 2012

[Pharo-project] [update 2.0] #20396

by Marcus Denker

20396 ----- Issue 6956: Some Ring tests are dependent on Monticello http://code.google.com/p/pharo/issues/detail?id=6956 Diff information: http://ss3.gemstone.com/ss/Pharo20/Ring-Tests-Monticello-MarcusDenker.6.diff http://ss3.gemstone.com/ss/Pharo20/Ring-Tests-Kernel-MarcusDenker.42.diff http://ss3.gemstone.com/ss/Pharo20/Ring-Tests-Containers-MarcusDenker.7.diff -- Marcus Denker -- http://marcusdenker.de

Nov. 14, 2012

[Pharo-project] download scripts for the new infrastructure

by Pavel Krivanek

Hi, we need to modify (or create new) http://pharo.gforge.inria.fr/ci/ciPharo20.sh and related scripts to use the new infrastructure. Has someone rights and time to do that? Cheers, -- Pavel

Nov. 14, 2012

[Pharo-project] Fwd: some interesting numbers

by Esteban Lorenzano

Hi, Usman got really interesting numbers in his work with moose and comparing 1.4 and 2.0 :) Esteban Begin forwarded message: > Benchmark: > A spec browser displaying a list and text container(s). > > > > List > > > > TEXT Container 1 > > > > TEXT Container 2 ... > > > Text is a 2k lines file (no FileStreams involved). > > > execution time > > Pharo 1.4 > > Pharo 2.0 > > With a single text container > > 17 secs > > 2.5 secs > > With two text containers > > 143 secs > > 5 secs > > With three text containers > > 221 secs > > 4.8 secs > > > So, things are going to be much better with Pharo 2.0. But we need to move asap to pharo 2.0 if we want to make text display faster. > > I've attached the code, just in case. > > usman

Nov. 14, 2012