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

Moving the HandMorph
by Matthieu Lacaton May 13, 2015

May 13, 2015

Hello everybody, Is there a way to move the position of the cursor (the HandMorph) by passing commands to it ? I tried things like "ActiveHand position:" or "ActiveHand moveToEvent:" but nothing worked for me. Thanks, Matthieu

3 5

Re: [Pharo-users] Image growing size
by phil＠highoctane.be May 13, 2015

May 13, 2015

I am using TWM and yes it gobbles memory. Disable/GC/Enable is indeed aomething do every once in a while. No need for snapshots for this to occur. A couple of Nautilus windows do the same. Youcan close them all in TWM and still have them eat memory. Phil Le 13 mai 2015 01:50, "Cameron Sanders via Pharo-users" < pharo-users(a)lists.pharo.org> a Ã©crit : > > > ---------- Forwarded message ---------- > From: Cameron Sanders <camsanders(a)aol.com> > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Cc: > Date: Tue, 3 Feb 2015 23:11:12 -0500 > Subject: Re: [Pharo-users] Image growing size > Do any of your (class/pool variable) singleton instances store data? add a > #clearAll or #reset (mySingletonVar := nil) to the class side -- or > whatever fits your app -- and do that before that #garbageCollect block. > [In fact, put that in some XXXAdmin class] > > Good Luck, > Cam > > On Tue, Feb 3, 2015 at 12:31 PM, phil(a)highoctane.be <phil(a)highoctane.be> > wrote: > >> Try to open monticello and select any repo, right click and clear the >> package cache. >> >> If you are using monticello that is. >> >> Also close all windows, open a workspace and do the >> >> 10 timesRepeat: [ Smalltalk garbageCollect]. >> >> HTH >> Phil >> Le 3 fÃ©vr. 2015 17:49, "Laura Risani" <laura.risani(a)gmail.com> a Ã©crit : >> >>> Hi all, >>> >>> The official image i've downloaded weighted about 40 MB. Now its size is >>> about 200 MB. What is the explanation? Is this normal or have i done >>> something wrong? >>> >>> I haven't been using globals, just downloaded and defined some packages. >>> The only over persistent thing i've done is to keep an instance variable in >>> some classes i wanted to have a unique instance. >>> >>> >>> Best, >>> Laura >>> >> > >

1 0

mac address on windows
by Usman Bhatti May 12, 2015

May 12, 2015

Hello, Has anyone tried to retrieve MAC address(es) of a windows machine using Pharo? I have tried two options thus far without any success: 1/ OSProcess: I tried (PipeableOSProcess command: 'ipconfig /all') output. This opens a command prompt on windows machine without anything happening inside it. Although when I try it on Linux/Mac (with ifconfig), I retrieve the output of the command. Another option is to do OSProcess command: 'ipconfig' but I wasn't able to find a way to retrieve the output of the command. 2/ Nativeboost comes with a set of built-in command to interact with Windows (class NBWin32Shell). One can get environment variables, etc. But I wasn't able to find a way to execute a command on the line and get the results. Would someone know of a way to retrieve the MAC addresses in Windows through the way listed above or any other form from the Pharo image? thanks in advance, Usman

10 29

beginner question - how to get a fully qualified filename from a dialog
by amaloney May 12, 2015

May 12, 2015

I have a method: openSimulationFile inFile := (StandardFileStream fileNamed: '/Users/amaloney/Squeak/30shoes.txt') ascii I want to replace the hard coded fully qualified filename with the result of a file browser dialog. I've done some Googling and poked around in the system browser and I find that if I enter (in a playground) UIManager default chooseDirectory and inspect-it I get: a FileReference (/Users/amaloney/Squeak) and if I try UIManager default chooseFileMatching: #( '*.txt' ) I get: a ByteString ('Readme.txt'). It seems that UIManager chooseDirectory is the method I should start exploring (since it returns a FileReference object) but the method is: chooseDirectory "Let the user choose a directory" ^self chooseDirectoryFrom: FileSystem workingDirectory and when I look at chooseDirectoryFrom: I get chooseDirectoryFrom: dir "Let the user choose a directory" ^self chooseDirectory: nil from: dir so I look at chooseDirectory: from: and I get: chooseDirectory: label from: dir "Let the user choose a directory" ^self subclassResponsibility Which doesn't help so I dig around in the docs some more and find out that the green down arrow is clickable. When I click it and choose MorphicUlManager>>#chooseDirectory:from: the method definition is: chooseDirectory: label from: dir "Answer the user choice of a directory." | modalMorph realLabel | realLabel := label ifNil: ['Choose Directory' translated]. (ProvideAnswerNotification signal: realLabel) ifNotNil: [:answer | ^answer ]. modalMorph := self modalMorph. ^modalMorph theme chooseDirectoryIn: modalMorph title: realLabel path: (dir ifNotNil: [dir fullName]) The problem is that I cannot find a chooseDirectoryIn:title:path: method. I wrote this all out hoping someone can tell me where I chose the wrong rabbit hole and can point me to instructions on how to choose the correct rabbit hole. ;-) (Also, if there is a short answer i.e. use this object>>method, I'd appreciate that as well.) Thanks, Mike -- View this message in context: http://forum.world.st/beginner-question-how-to-get-a-fully-qualified-filena… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 2

Moving the HandMorph
by Torsten Bergmann May 12, 2015

May 12, 2015

In Pharo 4.0 load EventRecorder. It is a complete reimplementation of an old goodie together with tests. Then check Tools -> EventRecorder in the world menu Bye T.

1 0

Woden - Rotate an Object from absolute referential
by merwanouddane＠gmail.com May 12, 2015

May 12, 2015

Hello everyone, I am currently making a little demo with woden and I would like to rotate a cube, not from the relative referential but from the absolute one ( rotate X always rotate in the same direction even if I previously have rotated Y ). What currently happens is that when I rotate the cube, the referential rotates as well... Does anyone know how to counter this ? Thanks Merwan

2 2

MouseWheel events
by Matthieu Lacaton May 12, 2015

May 12, 2015

Hello everyone, I have a question about MouseWheel events in Pharo. On Linux, when I use the wheel of my mouse the event I get in return is an instance of MouseWheelEvent : *" [(606@633) mouseWheel Character arrowDown CTRL 33261828 nil] "* When I press "CTRL + ArrowUp" or "CTRL + ArrowDown" on my keyboard I get the same type of MouseWheelEvent. On the other side, on Windows XP, when I press "CTRL + ArrowUp" or "CTRL + ArrowDown" on my keyboard I also get a MouseWheelEvent but when I use the wheel of my mouse I get a Keystroke event : *" [keystroke '<Ctrl->'] "* with a keyValue of 30 for a mousewheel up and 31 for a mousewheel down. I am a bit confused about this : Shouldn't I get a MouseWheel event when i use the wheel and a keystroke when I use CTRL + Arrow ? Why is it different from Linux to Windows ? In both cases I used Pharo4 VM + a fresh pharo 4 image. Thanks, Matthieu

3 8

Roassal-Woden dynamically change an element height without redrawing
by Lusa Nicolas May 11, 2015

May 11, 2015

Hi folks! I am working with Roassal-Woden and I want to dynamically change the size of an element already drawn and already added to my view. This could be overcome simply by drawing a new element on top of the current one but works only for bigger elements. What if I want to take the current one and simply change it? Here is what I thought would be working but it isn't: shape height: aValue. element changed. Where shape is my RWShape (a RWCube in my case) and element is the shape element (an RWElement). The curious thing is that this code is actually working for the color: shape color: aWDColor. element changed. Any tips on what is wrong about my code? Cheers, Nicolas

2 3

Custom error class
by Mark Rizun May 11, 2015

May 11, 2015

Hi guys! I was wondering if there is a tutorial/chapter in books or smth to read about implementing custom error class properly. If not maybe there are some good examples already implemented, so I could learn by exploring them. Thanks in advance! Mark -- View this message in context: http://forum.world.st/Custom-error-class-tp4825693.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 1

[ANN]: MixedNumberPrinter
by Sean P. DeNigris May 11, 2015

May 11, 2015

I wrote a little tool to print fractions/decimals as mixed numbers. Enjoy :) Gofer it smalltalkhubUser: 'SeanDeNigris' project: 'SeansPlayground'; package: 'MixedNumberPrinter'; load. Usage Examples: 1.25 mixedNumberString = '1Â¼'. "use special ASCII characters when possible" 1.125 mixedNumberString = '1 1/8' ----- Cheers, Sean -- View this message in context: http://forum.world.st/ANN-MixedNumberPrinter-tp4825615.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

1 0