- Pharo-users - lists.pharo.org

Rotation in Canvas draws

by Andre Hora

Hello, I would like to know how to rotate (given a degree or an angle) the draws in a Canvas. For example: in FormCanvas class>>test1, how to draw the string (or the rectangle, or the oval) vertically instead of horizontally? FormCanvas class>>test1 ... canvas drawString: 'Hello, World!' at: 40@40 font: nil color: (Color cyan). canvas fillRectangle: ((10@80) corner: (31@121)) color: (Color magenta). canvas fillOval: ((10@80) corner: (31@121)) color: (Color cyan). ... thanks and regards, -- Andre Hora

April 5, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by Lukas Renggli

> On the other topic, I'm not sure I completely understood what the problem > is. Couldn't we write an extension to Code Critics that ran on unloaded > code? The problem is that Code Critics makes the assumption that the code is loaded and does a lot of hard-core reflection using the system API. Lukas -- Lukas Renggli www.lukas-renggli.ch

April 5, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by AxiNat

Dave, thanks a lot, I'm gonna try it right away. On the other topic, I'm not sure I completely understood what the problem is. Couldn't we write an extension to Code Critics that ran on unloaded code? In which ways would that break compatibility with other dialects? I think this functionality would be really neat for projects that deal with other smalltalk projects (like Squeaksource/Squeakhub), and as it's pretty crucial to my project I'm willing and able to put my time into it. The problem is I'm afraid my skills do not suffice to take on this project on my own, so any guidelines on how to proceed or who to address would be of great help :) Bernat Romagosa. 2011/4/4 David T. Lewis <lewis(a)mail.msen.com> > Bernat, > > OSProcess and CommandShell will work with a SqueakVM from > http://www.squeakvm.org/unix/ so to solve your immediate problem > you can use that VM. > > For background, a unix VM should include the OSProcess plugin, AIO plugin, > and XDisplayControlPlugin. Cog VM's need some platform patches which > may not yet have been integrated into the code base. With those patches > in place, #forkSqueak will work on Cog, although the UI will not function > for the forked image (but this is not a problem for many usages). > > Dave > > > On Mon, Apr 04, 2011 at 06:35:20PM +0200, Mariano Martinez Peck wrote: > > Sorry, I am useless then. I just cc'ed Dave to see if he can help. > > > > Cheers > > > > mariano > > > > > > On Mon, Apr 4, 2011 at 5:02 PM, AxiNat <tibabenfortlapalanca(a)gmail.com > >wrote: > > > > > Hi Mariano, thanks, but I had already checked that discussion. The > bundle > > > that Esteban provided didn't work, quoting Stef: > > > > > > > > > Thanks a lot > > > I copied in the resources folder of 5.7.4 > > > It crashes. > > > > > > > > > Also, the thread was about it not working on MacOS (it made sense, it's > an > > > X11 control plugin), but I'm on Debian Linux. The only > XDisplayControlPlugin > > > I can find around is provided by the squeaksource pagage XDCP, but > loading > > > it fixes nothing either... > > > > > > > > > 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > > > > > >> > > >> > http://forum.world.st/template/NamlServlet.jtp?macro=search_page&node=12948… > > >> > > >> > > >> On Mon, Apr 4, 2011 at 4:34 PM, AxiNat < > tibabenfortlapalanca(a)gmail.com>wrote: > > >> > > >>> Hi again, > > >>> > > >>> when trying Mariano's idea I get the following error: > > >>> > > >>> *forkSqueak requires XDisplayControlPlugin* > > >>> * > > >>> * > > >>> *Select Proceed to continue, or close this window to cancel the > > >>> operation.* > > >>> > > >>> > > >>> Do I need to recompile the VM to add support for this plugin? If so, > are > > >>> there any guidelines around on how to do it? > > >>> > > >>> Thanks! > > >>> > > >>> Bernat. > > >>> > > >>> 2011/4/4 AxiNat <tibabenfortlapalanca(a)gmail.com> > > >>> > > >>>> Lukas, if that happened anytime soon it would make my life much > easier > > >>>> hehe > > >>>> > > >>>> Is there a way I could help to give it a boost? > > >>>> > > >>>> Mariano, the reason I cannot load the package is that it may contain > > >>>> (either intentionally or not) harmful code. An .st file can contain > > >>>> arbitrary code that is going to be executed at load time, so it'd be > really > > >>>> easy to hack the image: "Object compile: 'new'!", for instance ;) > > >>>> > > >>>> The solution you propose looks interesting, but I'm not sure I've > > >>>> completely understood it. Do you mean to run a new image, send it > the > > >>>> project file to be filed in, have it run the critics on the loaded > package, > > >>>> and get the output back to the original image? If so, that's a > solution I've > > >>>> been thinking of, but it would spend too many resources. Even though > I could > > >>>> always use a very light image, if only 5 users were to be working on > the app > > >>>> at the same time I'm afraid the system would begin to suffer :( > > >>>> > > >>>> On a second thought, is there some smaller, simpler implementation > of > > >>>> the SmallLint package? I wouldn't need to run all the tests, just a > couple > > >>>> of them: Bugs, Intention Revealing, Miscelaneous and Unnecessary > Code, and > > >>>> actually not even all the tests in these categories. > > >>>> > > >>>> Thanks a lot, I'm all ears :) > > >>>> > > >>>> Bernat. > > >>>> > > >>>> 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > > >>>> > > >>>>> Is not enough loading the classes but not showing them in the > browser ? > > >>>>> or maybe not putting them in Smalltalk ? > > >>>>> > > >>>>> can you do kind of a fork (using OSProcess) of the proccess > running > > >>>>> image which receives a .st file and in the new forked image you > pass the .st > > >>>>> in startup, do a file in and then run code-critics? > > >>>>> > > >>>>> I am curious why you cannot load them hehehehhe > > >>>>> > > >>>>> > > >>>>> On Mon, Apr 4, 2011 at 11:41 AM, AxiNat < > > >>>>> tibabenfortlapalanca(a)gmail.com> wrote: > > >>>>> > > >>>>>> Hi list, > > >>>>>> > > >>>>>> I have a pretty special need, which is to be able to run code > critics > > >>>>>> on projects that have not yet been loaded into the image. For > example, I > > >>>>>> need to browse an st file -or a squeaksource project- and before > loading it > > >>>>>> I want to run critics on it, would this be possible somehow? > > >>>>>> > > >>>>>> If it looks like something noone would need to do, I understand. > It's > > >>>>>> just that the project I'm working on is pretty particular... I've > been > > >>>>>> exploring other possibilities but I'm afraid this is one of the > few left for > > >>>>>> me to think of :( > > >>>>>> > > >>>>>> Thanks a lot in advance! > > >>>>>> > > >>>>>> Bernat Romagosa. > > >>>>>> > > >>>>> > > >>>>> > > >>>>> > > >>>>> -- > > >>>>> Mariano > > >>>>> http://marianopeck.wordpress.com > > >>>>> > > >>>>> > > >>>> > > >>> > > >> > > >> > > >> -- > > >> Mariano > > >> http://marianopeck.wordpress.com > > >> > > >> > > > > > > > > > -- > > Mariano > > http://marianopeck.wordpress.com >

April 5, 2011

Re: [Pharo-users] More elegant way?

by Friedrich Dominicus

Norbert Hartl <norbert(a)hartl.name> writes: > > Well, I think you have the perfect source for learning right in front > of you. The code snippet above didn't come from my mind. I just > remembered that if you are on a class you can open the menu, open > 'Refactor Class' and select Accessors to have pharo generate getters > and setters for you. So I wrote "Accessors" (with the double quotes) > in the workspace selected it and did a string seach (shortcurt > E). From the choice given 'ORCmdAccessorClassRefactoring' seemed to be > the most feasible. Then I investigated the methods found some other > reference and so on (I leave this as an exercise). Finally I found a > snippet which I copied and altered for your needs. This way I learned > something about OmniBrowser, Refactoring-Engine and that there is a > method expandMacrosWith: :) Well I'm old fashioned, I like to look into books and see somethign step-by-step. Unfortunatly the most Smalltalk books are lacking in that area (for my taste) Regards Friedrich -- Q-Software Solutions GmbH; Sitz: Bruchsal; Registergericht: Mannheim Registriernummer: HRB232138; Geschaeftsfuehrer: Friedrich Dominicus

April 5, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by David T. Lewis

Bernat, OSProcess and CommandShell will work with a SqueakVM from http://www.squeakvm.org/unix/ so to solve your immediate problem you can use that VM. For background, a unix VM should include the OSProcess plugin, AIO plugin, and XDisplayControlPlugin. Cog VM's need some platform patches which may not yet have been integrated into the code base. With those patches in place, #forkSqueak will work on Cog, although the UI will not function for the forked image (but this is not a problem for many usages). Dave On Mon, Apr 04, 2011 at 06:35:20PM +0200, Mariano Martinez Peck wrote: > Sorry, I am useless then. I just cc'ed Dave to see if he can help. > > Cheers > > mariano > > > On Mon, Apr 4, 2011 at 5:02 PM, AxiNat <tibabenfortlapalanca(a)gmail.com>wrote: > > > Hi Mariano, thanks, but I had already checked that discussion. The bundle > > that Esteban provided didn't work, quoting Stef: > > > > > > Thanks a lot > > I copied in the resources folder of 5.7.4 > > It crashes. > > > > > > Also, the thread was about it not working on MacOS (it made sense, it's an > > X11 control plugin), but I'm on Debian Linux. The only XDisplayControlPlugin > > I can find around is provided by the squeaksource pagage XDCP, but loading > > it fixes nothing either... > > > > > > 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > > > >> > >> http://forum.world.st/template/NamlServlet.jtp?macro=search_page&node=12948… > >> > >> > >> On Mon, Apr 4, 2011 at 4:34 PM, AxiNat <tibabenfortlapalanca(a)gmail.com>wrote: > >> > >>> Hi again, > >>> > >>> when trying Mariano's idea I get the following error: > >>> > >>> *forkSqueak requires XDisplayControlPlugin* > >>> * > >>> * > >>> *Select Proceed to continue, or close this window to cancel the > >>> operation.* > >>> > >>> > >>> Do I need to recompile the VM to add support for this plugin? If so, are > >>> there any guidelines around on how to do it? > >>> > >>> Thanks! > >>> > >>> Bernat. > >>> > >>> 2011/4/4 AxiNat <tibabenfortlapalanca(a)gmail.com> > >>> > >>>> Lukas, if that happened anytime soon it would make my life much easier > >>>> hehe > >>>> > >>>> Is there a way I could help to give it a boost? > >>>> > >>>> Mariano, the reason I cannot load the package is that it may contain > >>>> (either intentionally or not) harmful code. An .st file can contain > >>>> arbitrary code that is going to be executed at load time, so it'd be really > >>>> easy to hack the image: "Object compile: 'new'!", for instance ;) > >>>> > >>>> The solution you propose looks interesting, but I'm not sure I've > >>>> completely understood it. Do you mean to run a new image, send it the > >>>> project file to be filed in, have it run the critics on the loaded package, > >>>> and get the output back to the original image? If so, that's a solution I've > >>>> been thinking of, but it would spend too many resources. Even though I could > >>>> always use a very light image, if only 5 users were to be working on the app > >>>> at the same time I'm afraid the system would begin to suffer :( > >>>> > >>>> On a second thought, is there some smaller, simpler implementation of > >>>> the SmallLint package? I wouldn't need to run all the tests, just a couple > >>>> of them: Bugs, Intention Revealing, Miscelaneous and Unnecessary Code, and > >>>> actually not even all the tests in these categories. > >>>> > >>>> Thanks a lot, I'm all ears :) > >>>> > >>>> Bernat. > >>>> > >>>> 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > >>>> > >>>>> Is not enough loading the classes but not showing them in the browser ? > >>>>> or maybe not putting them in Smalltalk ? > >>>>> > >>>>> can you do kind of a fork (using OSProcess) of the proccess running > >>>>> image which receives a .st file and in the new forked image you pass the .st > >>>>> in startup, do a file in and then run code-critics? > >>>>> > >>>>> I am curious why you cannot load them hehehehhe > >>>>> > >>>>> > >>>>> On Mon, Apr 4, 2011 at 11:41 AM, AxiNat < > >>>>> tibabenfortlapalanca(a)gmail.com> wrote: > >>>>> > >>>>>> Hi list, > >>>>>> > >>>>>> I have a pretty special need, which is to be able to run code critics > >>>>>> on projects that have not yet been loaded into the image. For example, I > >>>>>> need to browse an st file -or a squeaksource project- and before loading it > >>>>>> I want to run critics on it, would this be possible somehow? > >>>>>> > >>>>>> If it looks like something noone would need to do, I understand. It's > >>>>>> just that the project I'm working on is pretty particular... I've been > >>>>>> exploring other possibilities but I'm afraid this is one of the few left for > >>>>>> me to think of :( > >>>>>> > >>>>>> Thanks a lot in advance! > >>>>>> > >>>>>> Bernat Romagosa. > >>>>>> > >>>>> > >>>>> > >>>>> > >>>>> -- > >>>>> Mariano > >>>>> http://marianopeck.wordpress.com > >>>>> > >>>>> > >>>> > >>> > >> > >> > >> -- > >> Mariano > >> http://marianopeck.wordpress.com > >> > >> > > > > > -- > Mariano > http://marianopeck.wordpress.com

April 4, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by Lukas Renggli

>> It is still one of the todo items for the refactoring engine to make >> Code Critics completely runnable on the refactoring code model. As the >> Pharo code model is diverging more and more from the refactoring code >> model this is more likely to happen anytime soon. > > Lukas what do you say that. Fixing the API of the RB code model should be simple to do. > Especially since the code model does not have to run on all the smalltalk dialect so we are > free to fix it. That is not entirely true, Slime and Magritte Critics rules (at least used to) run on other dialects too. Also there is external code that depends on it, such as Helvetia, Opal, ST2JS, SmaCC, ... The reason for moving Code Critics to use the refactoring model is that there will be only a single interaction point with the base system (Pharo). This will make maintenance simpler as only a single place needs to be updated (BrowserEnvironment for read-reflection, RefactoryChange for write-reflection). I don't know why Code Critics does not use the refactoring code model? It probably has historical reasons: Maybe it was a separate codebase at some point? Maybe it was done for performance reasons? > In addition the RB code model has always been a wrapper on top of other. No, the refactoring code model is not a wrapper: it doesn't necessarily wrap something. Lukas -- Lukas Renggli www.lukas-renggli.ch

April 4, 2011

Re: [Pharo-users] Writing to the std output

by David T. Lewis

On Mon, Apr 04, 2011 at 02:46:01PM +0200, Mariano Martinez Peck wrote: > On Mon, Apr 4, 2011 at 2:02 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > > > On 4 April 2011 13:55, Benjamin <benjamin.vanryseghem.pharo(a)gmail.com> > > wrote: > > > You have to add a new primitive I think ... > > > > > > > there was a discussion about adding it to Cog VMs.. but i don't know > > details. > > It could be there out of the box... just need to find it :) > > > > > I don't know why I remember some Cog extensions in StandardFileStream or > something like that that could directly write to the standard output...but > maybe I am just dreaming. > > Anyway wouldn't OSProcess do the job? Yes of course. Specifically for debugging support, see the #trace, #trace: and #debug: methods. Handy if you are trying to debug something that might drop you into an emergency evaluator. It also is running from the VM, so it avoids timing confusion related to Smalltalk process scheduling and flushing the ouput stream. Dave

April 4, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by Mariano Martinez Peck

Sorry, I am useless then. I just cc'ed Dave to see if he can help. Cheers mariano On Mon, Apr 4, 2011 at 5:02 PM, AxiNat <tibabenfortlapalanca(a)gmail.com>wrote: > Hi Mariano, thanks, but I had already checked that discussion. The bundle > that Esteban provided didn't work, quoting Stef: > > > Thanks a lot > I copied in the resources folder of 5.7.4 > It crashes. > > > Also, the thread was about it not working on MacOS (it made sense, it's an > X11 control plugin), but I'm on Debian Linux. The only XDisplayControlPlugin > I can find around is provided by the squeaksource pagage XDCP, but loading > it fixes nothing either... > > > 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > >> >> http://forum.world.st/template/NamlServlet.jtp?macro=search_page&node=12948… >> >> >> On Mon, Apr 4, 2011 at 4:34 PM, AxiNat <tibabenfortlapalanca(a)gmail.com>wrote: >> >>> Hi again, >>> >>> when trying Mariano's idea I get the following error: >>> >>> *forkSqueak requires XDisplayControlPlugin* >>> * >>> * >>> *Select Proceed to continue, or close this window to cancel the >>> operation.* >>> >>> >>> Do I need to recompile the VM to add support for this plugin? If so, are >>> there any guidelines around on how to do it? >>> >>> Thanks! >>> >>> Bernat. >>> >>> 2011/4/4 AxiNat <tibabenfortlapalanca(a)gmail.com> >>> >>>> Lukas, if that happened anytime soon it would make my life much easier >>>> hehe >>>> >>>> Is there a way I could help to give it a boost? >>>> >>>> Mariano, the reason I cannot load the package is that it may contain >>>> (either intentionally or not) harmful code. An .st file can contain >>>> arbitrary code that is going to be executed at load time, so it'd be really >>>> easy to hack the image: "Object compile: 'new'!", for instance ;) >>>> >>>> The solution you propose looks interesting, but I'm not sure I've >>>> completely understood it. Do you mean to run a new image, send it the >>>> project file to be filed in, have it run the critics on the loaded package, >>>> and get the output back to the original image? If so, that's a solution I've >>>> been thinking of, but it would spend too many resources. Even though I could >>>> always use a very light image, if only 5 users were to be working on the app >>>> at the same time I'm afraid the system would begin to suffer :( >>>> >>>> On a second thought, is there some smaller, simpler implementation of >>>> the SmallLint package? I wouldn't need to run all the tests, just a couple >>>> of them: Bugs, Intention Revealing, Miscelaneous and Unnecessary Code, and >>>> actually not even all the tests in these categories. >>>> >>>> Thanks a lot, I'm all ears :) >>>> >>>> Bernat. >>>> >>>> 2011/4/4 Mariano Martinez Peck <marianopeck(a)gmail.com> >>>> >>>>> Is not enough loading the classes but not showing them in the browser ? >>>>> or maybe not putting them in Smalltalk ? >>>>> >>>>> can you do kind of a fork (using OSProcess) of the proccess running >>>>> image which receives a .st file and in the new forked image you pass the .st >>>>> in startup, do a file in and then run code-critics? >>>>> >>>>> I am curious why you cannot load them hehehehhe >>>>> >>>>> >>>>> On Mon, Apr 4, 2011 at 11:41 AM, AxiNat < >>>>> tibabenfortlapalanca(a)gmail.com> wrote: >>>>> >>>>>> Hi list, >>>>>> >>>>>> I have a pretty special need, which is to be able to run code critics >>>>>> on projects that have not yet been loaded into the image. For example, I >>>>>> need to browse an st file -or a squeaksource project- and before loading it >>>>>> I want to run critics on it, would this be possible somehow? >>>>>> >>>>>> If it looks like something noone would need to do, I understand. It's >>>>>> just that the project I'm working on is pretty particular... I've been >>>>>> exploring other possibilities but I'm afraid this is one of the few left for >>>>>> me to think of :( >>>>>> >>>>>> Thanks a lot in advance! >>>>>> >>>>>> Bernat Romagosa. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Mariano >>>>> http://marianopeck.wordpress.com >>>>> >>>>> >>>> >>> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> > -- Mariano http://marianopeck.wordpress.com

April 4, 2011

Re: [Pharo-users] Code Critics for unloaded projects

by StÃ©phane Ducasse

> Being able to run Code Critics on not loaded code would be a very nice > thing, unfortunately it is not supported right now. We wanted to do > the same in SqueakSource when we originally wrote the software, but we > had to realize that a lot of the rules unnecessarily depend on the > fact that the code is installed. > > It is still one of the todo items for the refactoring engine to make > Code Critics completely runnable on the refactoring code model. As the > Pharo code model is diverging more and more from the refactoring code > model this is more likely to happen anytime soon. Lukas what do you say that. Fixing the API of the RB code model should be simple to do. Especially since the code model does not have to run on all the smalltalk dialect so we are free to fix it. In addition the RB code model has always been a wrapper on top of other. We are working on Ring and the point is to use it to manage the source code and off-line source code model and the one of RB too -- may be you do not believe it but if we do not try we will not move and we should have an infrastructure that enable us to move. Now finally I do not see why changing is a problem, especially since the runtime system does not have to be the same everything. Stef

April 4, 2011

Re: [Pharo-users] Last pending things for Pharo 1.2

by Marcus Denker

On Apr 4, 2011, at 5:05 PM, Mariano Martinez Peck wrote: > > > On Sat, Mar 12, 2011 at 8:19 PM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > So....here is the list of things I guess are pending: > In general, for all pending things adding entries in the bug tracker is the only way ti make sure they are not forgotten. > 1) "Release" all configurations included in Pharo (this is, ConfigurationOfPharo and all it dependencies). I mean, we should NOT use or depend on #development versions. > > so...can someone check this is done? GUillermo and me did it once...but it seems a lot of stuff was updated once again I just gave up and took the image yesterday. Like you did for 1.1: Just build it once, don't care that it is repeatable. > > 2) Update the one click image to use latest cog images and "pharo prepared vms". There are some issues regarding this... > > Marcus, which is the status of this one ? I updated the one-click image with the last cog VM. For the one-click, it is identical to 1.1 with the only change that I put the windows VM I got from Torsten. > > 3) Write down all the things/summary done in Pharo 1.2 > > consider as done in nobody else comes with something better, > > 5) Update SystemVersion current -->> Pharo1.2rc2 of 27 January 2011 update 12340 > > > SystemVersion current ->> Pharo1.2.1 of 2 April 2011 update 12345 > > so..it is ok, isn't it ? can we forget this item ? > > 6) Condense sources? condense changes? #cleanUpForRelease > > Marcus, is that necessary ? > > DEVImageCreator >> cleanUps > > ScriptLoader new cleanUpForRelease. > "In Pharo 1.1 condenseChanges is VERY slow because of the new method trailers. So condensingChanges each time even when it is not needed is not a good idea anymore. So in case a condenseChanges is needed it should be done explicitly. > Smalltalk condenseChanges." > Smalltalk garbageCollect. > > I did that and I put that comment. Now that they are faster and that we have Hudson, should I put back the Smalltalk condenseChanges ? is there anything else needed? do we need a condenseSources ? > CondenseChange and CondenseSource is broken right now. Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

April 4, 2011