August 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] gettings real senders

by Ben Coman

On Sun, Aug 9, 2015 at 3:25 AM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > So there's method CompiledMethod>>senders, > but the problem is that it just looks for the message symbol and not class. > > so for example: > ~~~~~~~~~~~~~~~~~~~~~ > (WriteStream>>on:) senders > ~~~~~~~~~~~~~~~~~~~~~ > will also include Object>>asBrick > > Object>>asBrick > ^ GLMMorphBrick on: self asMorph > > because it sends #on: even though it's on completely different object. > > Now I understand that this is a dynamic system, so I will never have all > senders, but this should be resolvable even through static analysis? > > So now my question is: Is there an easy way to retrieve the object to which > the selector is sent? > I can use "CompiledMethod>>messages", but that just returns "a Set(#asMorph > #on:)" which is useless here. > > So do I need to traverse the AST and find it there? You can't search invocations of a particular "class>>method". You can only search invocations of a "message" unbound from any class. You can constrain your senders to search to particular packages, but that requires pre-knowledge and may not suit all cases. In some cases I find adding the following useful... WriteStream>>on: Transcript crShow: thisContext senders senders printString , '-->' , thisContext senders printString , thisContext printString. .... cheers -ben

Aug. 9, 2015

Re: [Pharo-users] direct image code exchange

by Offray Vladimir Luna CÃ¡rdenas

Hi Juraj, At the last data week and in the workshops, we have an interesting user case: sharing code snippets between assistants to the workshop. For that we setup an Etherpad at the beginning of the workshop where we share notes and code snippets by their url on http://ws.stfx.eu. This has worked pretty fine and the only thing I can think for an improvement would be having something like "ethepads" inside the Pharo Image, allowing participants to write collaboratively docs and scripts inside Pharo. You can see and examples of such case of use here: http://mutabit.com/deltas/repos.fossil/dataweek/home (mostly in Spanish but the use of Etherpads and published playgrounds is understandable). Cheers, Offray On 07/08/15 08:23, Juraj Kubelka wrote: > Hi! > > It is great that people are interested in sharing information between > images. GTChatter was the first try and we will come with a new solution. > > What is the most urgent information you want to share between images? > Source code? > I am curious about your use cases: Do you want to share information > between images on the same computer? Between your computers? Between > co-workers? > > Cheers, > Juraj > >> On Aug 7, 2015, at 03:58, Peter UhnÃ¡k <i.uhnak(a)gmail.com >> <mailto:i.uhnak@gmail.com>> wrote: >> >> On PharoDays, there was a demo of GTChatter ( >> https://youtu.be/Nmcou_5um2s?t=22m18s ), but it was just prototype, I >> don't think it's currently being developed. But maybe it could serve >> as a bases for code sharing between images/users. >> >> If anything you could simply push your code to http://ws.stfx.eu/ >> (Playground can do that with a button), and then paste the link >> through GTSpotter to the other user. If you paste that link into >> GTSpotter, it automatically offers you the option to open playground >> on it (eg. try pasting into GTSpotter http://ws.stfx.eu/923KR0YD1BRU ). >> >> Peter >> >> On Fri, Aug 7, 2015 at 12:45 AM, Sebastian Heidbrink >> <sheidev(a)yahoo.de <mailto:sheidev@yahoo.de>> wrote: >> >> Hi Sven, >> >> thank you! I will check it out. >> I'll have such situation more and more often. >> I'll let you know when I might have extended the code by some addons >> >> Sebastian >> >> >> On 2015-08-06 3:26 PM, Sven Van Caekenberghe wrote: >> >> On 07 Aug 2015, at 00:13, Sebastian Heidbrink >> <sheidev(a)yahoo.de <mailto:sheidev@yahoo.de>> wrote: >> >> Is there a in-image monticello server available that >> would mimic a repository server? >> >> Yes, it is called ZnMonticelloServerDelegate - it is meant as >> an example, but it works. >> >> >> >> >

Aug. 8, 2015

Re: [Pharo-users] MongoDB: console commands? query embedded indexed fields?

by Norbert Hartl

> Am 08.08.2015 um 10:38 schrieb Sabine Manaa <manaa.sabine(a)gmail.com>: > > Hi Norbert, > > lol, I had to google that: https://en.wikipedia.org/wiki/Heisenbug > funny but that's it. It is always a good feeling when I know what the reason for a certain behavior is. > Now I can proceed with the implementation of the search functionality. > > no, in Mongo I don't store the back references, they are created when the objects are instantiated in pharo. > Wouldn't you do it like this? What is the background for your question? > The background is that there is a difference between an in-memory graph and a persisted one. So storing forth and backreferences is asking for trouble. Having back references being transient and reestablishing them on materialization is a good way of having the best of both world. Norbert > Regards > Sabine > > 2015-08-07 15:06 GMT+02:00 NorbertHartl [via Smalltalk] <[hidden email]>: >> >>> Am 07.08.2015 um 14:53 schrieb Sabine Manaa <[hidden email]>: >>> >>> Hi Norbert, Hi Phil, >>> >>> thanks for your help! Now I know what the problem is/was. :-))) >>> >>> The query was right, the index was used, all is fine. >>> >>> BUT: >>> I used an inspector to look at the query's result and opening the inspector forced to load all the other objects which belong to the object found. >>> Explanation: I have a person which has N trips with N receipts, all with back pointers. Opening an Inspector with one trip loads its person and all other trips of this person hahaha. The magritte description isLazy but the inspector forced the loading of the objects in the VOMongoRepository at first time after image starting. >>> >>> Time millisecondsToRun: [(RKATrip selectMany: { 'receipts.receiptDescription' -> 'a' } asDictionary) size] 764 . >>> Time millisecondsToRun: [(RKATrip selectMany: { 'receipts.receiptDescription' -> 'a' } asDictionary) inspect] 17234 >>> >>> So, I messed around with myself. >> Well, we call this an inversed Heisenbug, don't we? :) That is a problem we should be aware when using proxy implementations and tools like gt tools. It is very likely that a powerful tool will inquire special information on a proxy that will trigger it. >> >>> Currently I do not have so much data but I hope in future there will be a lot and I want the application prepared for that. >> It depends on the tool and your model. Are you storing those backreferences in mongo as well? >> >> Norbert >> >>> BTW: I found this nice document: https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/ws/Voyage/Vo… >>> I was mentioned there, thanks! Esteban, if you want, you could change my name, I married and changed my name to Manaa. >>> >>> have a nice weekend >>> Sabine >>> >>> 2015-08-06 15:36 GMT+02:00 NorbertHartl [via Smalltalk] <<a href="x-msg://13/user/SendEmail.jtp?type=node&node=4841464&i=0" target="_top" rel="nofollow" link="external" class="">[hidden email]>: >>> >>>> Sabine, >>>> >>>>> Am 06.08.2015 um 14:49 schrieb Sabine Manaa <[hidden email]>: >>>>> >>>>> Norbert, >>>>> >>>>> I have to come back to your answer. >>>>> >>>>> With the .explain option, I can see, how performance is with and without index on the _mongo console_. >>>>> As an example, I see: with index only 2 objects scanned, without: 200. Performance is perfect with index. >>>>> >>>>> But _from smalltalk_, it seems to iterate over all objects, also with the index set. Slow. >>>>> >>>>> You wrote: "The index will be selected automatically." It seems that it does not. >>>> >>>> Usually it does. >>>> >>>>> My question: >>>>> MongoQuery has an attribute named "where" which is filled with the mentioned "receipts.receiptDescription". >>>>> Because of the name of this attribute "where" and the slow performance, I assume that the mongo classes use the $where command: >>>>> >>>>> http://docs.mongodb.org/manual/reference/operator/query/where/ >>>>> >>>>> Is this right? >>>>> >>>>> In this case with the statement >>>>> Trip selectMany: { 'receipts.receiptDescription' -> 'Tankquittung' } asDictionary >>>>> the index would not be set automatically. >>>>> >>>>> "The $where provides greater flexibility, but requires that the database processes the JavaScript expression or function for each document in the collection. " >>>>> >>>>> Then my question is if the mongo classes support database queries with index and if yes, how. >>>>> >>>>> I am very interested in your opinion and I think other users should have the same requirements (querying indexed variables) - how did they solve this? >>>> The handling of indexes needs to be automatic. The rule of thumb is that if you use where clause like b = , c = , a= than you need an compound index in the same order being index(b,c,a). This is handled by the database when it analyzes the query it tries to find an appropriate index. Or seeing it from the other side: If you issue a query with index and the index does not fit the query it is a problem anyway. Are you sure you have only this one thing in the where query? >>>> >>>> I use e.g. >>>> >>>> COInstalledApp selectOne: { >>>> 'device.id' -> aString. >>>> 'application.__id' -> anApplication voyageId } asDictionary >>>> >>>> on a collection that has approx. 1 Mio. entires and it is fast. I didn't check with explain but I'll do if I find time :) >>>> >>>> If I were you I would step in the debugger down to the Voyage part after serialization. Then you have the exact Dictionary that is used to send to mongo. You can then use this query to do an "explain" on it and that should show you something. Another thing you can try (although I don't think makes any difference) is to use the non-javascript query variant. That would be >>>> >>>> Trip selectMany: { >>>> 'receipts' -> { >>>> 'receiptDescription' -> 'Tankquittung' } asDictionary } asDictionary >>>> >>>> Norbert >>>> >>>>> Regards >>>>> Sabine >>>>> >>>>> >>>>> 2015-08-04 14:47 GMT+02:00 Sabine Manaa <[hidden email]>: >>>>> >>>>> > >>>>> > Hi Norbert, >>>>> > >>>>> > I didn't want to use "use database" for queries but for defining the index from within smalltalk. But if creating indexes is not supported, I will set the indexes within the mongo console. >>>>> > >>>>> > The explain option is very helpful I did not know this. >>>>> > >>>>> > Your answer was very helpful for me, thanks a lot! >>>>> > Sabine >>>>> > >>>>> > >>>>> > >>>>> > 2015-08-04 10:42 GMT+02:00 NorbertHartl [via Smalltalk] <[hidden email]>: >>>>> >> >>>>> >> Sabine, >>>>> >> >>>>> >> Am 04.08.2015 um 07:08 schrieb Sabine Manaa <[hidden email]>: >>>>> >> >>>>> >> Hi, >>>>> >> >>>>> >> I have 2 questions concerning use of mongoDB classes: >>>>> >> 1) how can I send mongo console commands directly from smalltalk >>>>> >> 2) how to query on an embedded collection with an index >>>>> >> >>>>> >> Model: >>>>> >> I have trips and each trip has an embedded collection of N receipts like >>>>> >> this: >>>>> >> { "tripName" : "trip 1", >>>>> >> {"receipts" : [ >>>>> >> {"receiptDescription" : "receipt 1" } >>>>> >> {"receiptDescription" : "receipt 2" } >>>>> >> {"receiptDescription" : "receipt 3" } ], >>>>> >> } >>>>> >> >>>>> >> Index: >>>>> >> For quick search, I created an index on the embeded[1] receipts with this >>>>> >> command at the mongoDB console in a terminal (NOT in smalltalk) >>>>> >> (mongo console starts with mongo in the MongoDB/bin dir): >>>>> >> >>>>> >> db.Trips.createIndex({"receipts.receiptDescription":1}) >>>>> >> >>>>> >> with a command like this in the mongoDB console >>>>> >> >>>>> >> db.Trips.find({"receipts.receiptDescription":"receipt 1"}) >>>>> >> >>>>> >> I get the resulting receipt. >>>>> >> >>>>> >> Before, I have to set the database with "use {databasename}" in thr mongodb >>>>> >> console >>>>> >> >>>>> >> My questions: >>>>> >> 1) how can I send mongo console commands directly from smalltalk, e.g. use >>>>> >> database, set index etc. >>>>> >> >>>>> >> >>>>> >> I don't know why you want to use "use database". For queries you don't need this because you choose the database and collection by using the smalltalk classes. You can look there if something you need exists. >>>>> >> Creating indexes is not yet supported. I want to do that myself. As always there seems to be to less people implementing stuff like that. >>>>> >> >>>>> >> Is this possible? >>>>> >> I did not succeed with the mongo command: method, it always returns "no such >>>>> >> cmd". >>>>> >> >>>>> >> 2) how can I search for a receipt which is indexed as described from >>>>> >> smalltalk? >>>>> >> >>>>> >> >>>>> >> A simple >>>>> >> >>>>> >> Trip selectMany: { 'receipts.receiptDescription' -> 'Tankquittung' } asDictionary >>>>> >> >>>>> >> should do. You can use just the nested properties form. The index will be selected automatically. If you are not sure about queries read about explain [1] to optimize that stuff. >>>>> >> >>>>> >> [1] http://docs.mongodb.org/manual/reference/method/cursor.explain/#cursor.expl… >>>>> >> >>>>> >> Norbert >>>>> >> >>>>> >> >>>>> >> I did not succeed with the description [2] I am not sure if it is covered by >>>>> >> it. >>>>> >> >>>>> >> Regards >>>>> >> Sabine >>>>> >> >>>>> >> >>>>> >> [1] >>>>> >> http://docs.mongodb.org/manual/core/index-multikey/#index-arrays-with-embed… >>>>> >> [2] http://smallworks.eu/web/blog/2013-07-18-Voyage-advanced-queries >>>>> >> >>>>> >> >>>>> >> >>>>> >> -- >>>>> >> View this message in context: http://forum.world.st/MongoDB-console-commands-query-embedded-indexed-field… >>>>> >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> ________________________________ >>>>> >> If you reply to this email, your message will be added to the discussion below: >>>>> >> http://forum.world.st/MongoDB-console-commands-query-embedded-indexed-field… >>>>> >> To start a new topic under Pharo Smalltalk Users, email [hidden email] >>>>> >> To unsubscribe from MongoDB: console commands? query embedded indexed fields?, click here. >>>>> >> NAML >>>>> > >>>>> > >>>>> > >>>>> > ________________________________ >>>>> > View this message in context: Re: MongoDB: console commands? query embedded indexed fields? >>>>> > >>>>> > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>> >>> If you reply to this email, your message will be added to the discussion below: >>> http://forum.world.st/MongoDB-console-commands-query-embedded-indexed-field… >>> To start a new topic under Pharo Smalltalk Users, email <a href="x-msg://13/user/SendEmail.jtp?type=node&node=4841464&i=1" target="_top" rel="nofollow" link="external" class="">[hidden email] >>> To unsubscribe from MongoDB: console commands? query embedded indexed fields?, click here. >>> NAML >> >> >> View this message in context: Re: MongoDB: console commands? query embedded indexed fields? >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > > > If you reply to this email, your message will be added to the discussion below: > http://forum.world.st/MongoDB-console-commands-query-embedded-indexed-field… > To start a new topic under Pharo Smalltalk Users, email [hidden email] > To unsubscribe from MongoDB: console commands? query embedded indexed fields?, click here. > NAML > > > View this message in context: Re: MongoDB: console commands? query embedded indexed fields? > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 8, 2015

Re: [Pharo-users] System Windows not closing on using #close

by Stephan Eggermont

On 08/08/15 20:43, Jigyasa Grover wrote: > Oh > Thank You Ben. > It was indeed a very nice explanation. :) > I was able to resolve my issue perfectly. > > But changing the code snippet to: > > *--------------------------------------------------------------------------- > #initialize > . . . > boxWindow := box openInWindow. > boxWindow setLabel: 'searchQuick - Browse Files'. > box position: 150@0. > boxWindow fullscreen. > boxWindow color: Color black. > ---------------------------------------------------------------------------* > > I can no longer position 'box' within 'boxWindow'. > Any clue regarding this ? If you take a look at Morph>>openInWindowLabeled: aString inWorld: aWorld you'll see that the morph itself is added with a LayoutFrame taking up the whole window (0@0 extent: 1@1). Making that then fullScreen results in the box getting resized to take the whole screen. If you give the box a different frame after adding it you should be able to position it differently. Stephan

Aug. 8, 2015

Re: [Pharo-users] MSOffice DOCX generation?

by Ð®ÑÐ¸Ð¹ ÐÐ¸ÑÐ¾Ð½ÐµÐ½ÐºÐ¾

Sorry if I was crude - it was not my intention :) I just spotted your question and have started investigation, and I just wanted to show that I'm in process of answering and answer will soon be here. Unfortunately, unexpected emergency happened...well, anyway: Using of TabularExperimenting is very simple (though not very usable): tab := TabularExperimenting new. tab generateXLSX. It will generate file named "Test.xlsx" in the current directory (in windows environment it is directory same to image one in most cases, in ubuntu it's home folder of the current user). If you'll see closely on TabularExperimenting, the model for the export is genrated in #initialize method. And, as far as I remember, it do not support multi-sheets documents (only first sheet will be actually written to the file). That's why it's Experimenting, not Exporter :) Well, I have used this code in production, making very quick, dirty and obvious API for this TabularExperimenting class. It's on repo now, but not recommended for loading (see the version comments to find one if you want to see it). 2015-08-08 13:32 GMT+03:00 H. Hirzel <hannes.hirzel(a)gmail.com>: > Sorry I do not want to put you under pressure, the second email was > just meant as a clarificiation of the first :-), take you time. > > --HH > > On 8/8/15, Ð®ÑÐ¸Ð¹ ÐÐ¸ÑÐ¾Ð½ÐµÐ½ÐºÐ¾ <assargaddon(a)gmail.com> wrote: > > Give me couple of minutes to make answer, please. > > > > 2015-08-08 13:14 GMT+03:00 H. Hirzel <hannes.hirzel(a)gmail.com>: > > > >> Mainly the answer to the question: How do I use the experimental > exporter > >> class? > >> > >> > >> > >> > >> On 8/8/15, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> > Yes, this is what I realized when looking at your code in Tabular. > >> > > >> > This is a good basis to build upon. I started adding some versions to > >> > http://ss3.gemtalksystems.com/ss/Tabular.html > >> > > >> > mainly adding comments and grouping method into protocols. > >> > > >> > Your test cases are useful. > >> > > >> > May I ask you to add some comment to the exporters subpackage? > >> > > >> > Hannes > >> > > >> > > >> > On 8/8/15, Vincent BLONDEAU <vincent.blondeau(a)polytech-lille.net> > >> > wrote: > >> >> I think you can improve Tabular to generate DOCX files. It is the > same > >> >> file > >> >> standard than XLSX. > >> >> > >> >> Vincent > >> >> > >> >> -----Message d'origine----- > >> >> De : Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] De la > >> part > >> >> de > >> >> H. Hirzel > >> >> EnvoyÃ© : samedi 8 aoÃ»t 2015 08:56 > >> >> Ã : Any question about pharo is welcome > >> >> Objet : Re: [Pharo-users] MSOffice DOCX generation? > >> >> > >> >> I found Tabular > >> >> > >> >> http://ss3.gemtalksystems.com/ss/Tabular.html > >> >> > >> >> which is for Spreadsheets files. It is useful as an example for > >> >> creating > >> >> something similar for DOCX files. > >> >> > >> >> On 8/8/15, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> >>> A similar library but for Java > >> >>> > >> >>> http://www.docx4java.org/trac/docx4j > >> >>> > >> >>> On 8/7/15, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> >>>> Hello > >> >>>> > >> >>>> Is there a library like for Pharo to generate DOCX files? > >> >>>> > >> >>>> Something like this > >> >>>> https://docx.codeplex.com/ > >> >>>> DocX is a .NET library that allows developers to manipulate Word > >> >>>> 2007/2010/2013 files, in an easy and intuitive manor. DocX is fast, > >> >>>> lightweight and best of all it does not require Microsoft Word or > >> >>>> Office to be installed. > >> >>>> > >> >>>> Regards > >> >>>> > >> >>>> Hannes > >> >>>> > >> >>> > >> >> > >> >> > >> >> > >> >> > >> > > >> > >> > > > >

Aug. 8, 2015

gettings real senders

by Peter UhnÃ¡k

So there's method CompiledMethod>>senders, but the problem is that it just looks for the message symbol and not class. so for example: ~~~~~~~~~~~~~~~~~~~~~ (WriteStream>>on:) senders ~~~~~~~~~~~~~~~~~~~~~ will also include Object>>asBrick Object>>asBrick ^ GLMMorphBrick on: self asMorph because it sends #on: even though it's on completely different object. Now I understand that this is a dynamic system, so I will never have all senders, but this should be resolvable even through static analysis? So now my question is: Is there an easy way to retrieve the object to which the selector is sent? I can use "CompiledMethod>>messages", but that just returns "a Set(#asMorph #on:)" which is useless here. So do I need to traverse the AST and find it there? Thanks, Peter

Aug. 8, 2015

Re: [Pharo-users] System Windows not closing on using #close

by Jigyasa Grover

Oh Thank You Ben. It was indeed a very nice explanation. :) I was able to resolve my issue perfectly. But changing the code snippet to: *--------------------------------------------------------------------------- #initialize . . . boxWindow := box openInWindow. boxWindow setLabel: 'searchQuick - Browse Files'. box position: 150@0. boxWindow fullscreen. boxWindow color: Color black. ---------------------------------------------------------------------------* I can no longer position 'box' within 'boxWindow'. Any clue regarding this ? Regards Jigyasa -- View this message in context: http://forum.world.st/System-Windows-not-closing-on-using-close-tp4841568p4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 8, 2015

Re: [Pharo-users] Image cannot grow beyond 500Mb

by Tapple Gao

Thank you Phil. that worked > On Aug 8, 2015, at 9:58 AM, phil(a)highoctane.be wrote: > > Yes. You need to amend the plist file. > > I got like 2.5GB working. > > Or use a command line switch: > > --memory 1024m > > Phil > > Le 8 aoÃ»t 2015 15:24, "Tapple Gao" <tapplek(a)gmail.com <mailto:tapplek@gmail.com>> a Ã©crit : > I am trying to use Moose to do run graph algorithms on data with about 300,000 nodes. This data is map data downloaded from OpenStreetMap, and I am trying to analyze it with the Moose-Analysis-Graphs package. However, it seems completely unable to handle this, partially due to unoptimized algorithms, but mostly due to memory limits of the VM or image itself. > > I am using the vm and image of the moose one-click image for mac: http://www.moosetechnology.org/#install <http://www.moosetechnology.org/#install> . I believe this is a pharo vm and image, I donât know if pharo and squeak are still different these days, or if it matters. Been out of squeak for a few years > > This platform is seemingly unable to use more than about 500Mb of memory. I watch it in macâs activity monitor. Once it reaches about 450Mb as measured by activity monitor, it is spending nearly all itâs time in the garbage collector, (as measured by activity monitorâs Sample Process tool). The most Iâve seen it eventually reach is 556Mb, after about an hour, then it does a hard VM crash (Pharo has quit unexpectedly). > > Is there a way to remedy this? I tried running the image in 4 alternative VMâs: > - The latest pharo mac vm from http://files.pharo.org/vm/pharo/mac/ <http://files.pharo.org/vm/pharo/mac/> . Same issue as above. likely the same vm > - Cocoa Cog vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : crashed at startup. could not load image > - Cocoa Stack vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : crashed at startup; could not load image > - Carbon Stack vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : refused to start > > Is it possible to allocate more than 500Mb of memory to squeak?

Aug. 8, 2015

Re: [Pharo-users] Proper way to retrieve Monticello repositories

by Peter UhnÃ¡k

On Sat, Aug 8, 2015 at 1:44 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > Hi, > > what is the proper way to retrieve Monticello repositories? > > I've always simply queried the system for instances... > e.g. MCSmalltalkhubRepository allInstances detect: > > But is there some manager or something? (Akin to RPackageOrganizer default) > MCRepositoryGroup default repositories But the second question still holds.

Aug. 8, 2015

Re: [Pharo-users] System Windows not closing on using #close

by Ben Coman

If you put a "self halt" at the top of IndexInterface>>#delete, then after opening the app, on one of the buttons (e.g. Browse Files) bring up its halos and click the Spanner/Debug icon, then "Inspect owner chain", and you will see a SystemWindow within a SystemWindow. Now click that button and the debugger will show that boxWindow is the inner SystemWindow, so when you close that you leave the outer SystemWindow. Actually the nested SystemWindows are apparent from the close-minimise-maximise icons in the top-left of each. This seems wrong. Putting a "self halt" in IndexInterface>>#initialize and stepping into "boxWindow openInWindowLabeled: 'searchQuick' " shows how you end up with nested SystemWindows. As you trace through, notice that SystemWindow>>openInWindowLabeled:inWorld: returns the window it creates, so maybe you instead want "boxWindow := box openInWindowLabeled: 'searchQuick' " A few other things: * SystemWindow>>close simply calls "self delete" so there seems no need to call both, just #delete. * From the debugger evaluating "boxWindow" and "boxWindow window" return the identical object (per identical number in brackets), so there seems no need to delete both. cheers -ben On Sat, Aug 8, 2015 at 1:47 PM, Jigyasa Grover <grover.jigyasa1(a)gmail.com> wrote: > Hi > I am using SystemWindow to open a Morph in my application searchQuick. ( > https://github.com/jig08/sQuick_new ) > On clicking a button, a new screen opens up but the prev window fails to > close, though I have tried using #close methods. > > The code snippets are as: > > ------------------------------------------------------------------------------------------------------------------ > IndexInterface>>#initialize > . . . . . . > boxWindow := SystemWindow new. > box position: 150@0. > boxWindow addMorph: box. > boxWindow extent: World extent. > boxWindow openInWindowLabeled: 'searchQuick'. > boxWindow fullscreen. > boxWindow color: Color black. > . . . . . . . > > browseBtn on: #click send: #value to: [self boxWindow window close. > IndexInterface delete. BrowseFiles open]. > > ------------------------------------------------------------------------------------------------------------------- > IndexInterface>>#delete > box isNil ifFalse: [ self boxWindow window close. > self boxWindow window delete . > self boxWindow close. > box window close . > self boxWindow delete. > box delete.]. > box := nil. > self boxWindow window close. > self boxWindow window delete . > self boxWindow close. > self boxWindow delete. > boxWindow := nil. > > ------------------------------------------------------------------------------------------------------------------- > > Help appreciated. > > Regards > Jigyasa

Aug. 8, 2015