June 2009 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] modifying a literal

by Alexandre Bergel

Something that I realized few minutes later i sent the email, in a coffee break with marcus Thanks, Alexandre On 19 Jun 2009, at 16:08, Lukas Renggli wrote: >> The following code freeze the image, and I have no idea why. >> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= >> Object compile: 'foo ^ Point new'. >> pointAssociation := (Object >> #foo) literals first. >> self assert: [pointAssociation isKindOf: Association]. >> self assert: [pointAssociation value == Point]. >> pointAssociation value: Color. "<-- this is the dangerous line" >> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= >> >> If I try to do "Object new foo", the whole image freezes. >> >> Any idea why? > > Class bindings are shared among the system dictionary and all code > that references them. This mechanism is central so that code with > undeclared references can be compiled and automatically resolves later > on without having to re-compile the complete system. > > Your code changes the binding of Point to point to Color. Obviously > that's fatal. After executing your code, Point is an alias to Color > and the actual Point class is garbage-collected. > > To make your code work you need to replace the complete literal with > > Smalltalk associationAt: #Color > > Cheers, > Lukas > > -- > Lukas Renggli > http://www.lukas-renggli.ch > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

June 19, 2009

Re: [Pharo-project] Making GUI'S

by StÃ©phane Ducasse

> > I don't know what I am waiting for -- except more time -- because I > guess I should build such a thing. (Are there any Pharo/squeak coders > available for part-time consulting over the next year? ...At student > level pay I must add.) > > I too want a GUI builder. me too :) So may be we could have a kind of bounty system for pharo. Frankly we are rather full and we (the core) have not that much time for extensions but we would support any work in the direction of UIBuilder TestServer Package.... FileWrite-Rio kind of integration Better MC support (yes I should look at MC1.5) Better SUnit Better tools (for example like the newInspector) Stef

June 19, 2009

Re: [Pharo-project] Making GUI'S

by StÃ©phane Ducasse

On Jun 19, 2009, at 9:45 PM, Cameron Sanders wrote: > Didn't I read somewhere that you can graphically "group" morphs > together via a menu option (e.g. make one widget a child of another)? > If so, and if relative positioning is preserved, then given how one > can create morphs in a workspace, it seems like the capability is > nearly there. We just need a browser to enable full binding to the > callbacks/blocks and a code storage spec that is compact. It seems > like it should be dead simple to build one from scratch, even if the > capability I inquired about (in the first sentence of this email) is > not present. > > I don't know what I am waiting for -- except more time -- because I > guess I should build such a thing. (Are there any Pharo/squeak coders > available for part-time consulting over the next year? ...At student > level pay I must add.) > > I too want a GUI builder. > > -Cam > > On Jun 19, 2009, at 3:22 PM, Michael Roberts wrote: > >> I think the question was 'where is the UI builder'?. In VW you have a >> builder where you can drag and drop (to a certain extent) widgets >> on a >> canvas and define their properties. I'm not sure we have this in >> Pharo. >> >> thanks, >> >> > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

June 19, 2009

Re: [Pharo-project] Making GUI'S

by StÃ©phane Ducasse

On Jun 19, 2009, at 10:13 PM, Juan Pablo Cook wrote: > Ah ok, And a question, If you can help me... What framework with a > UiBuilder for Smalltalk free there is? It's a problem I think... None so far. We are at the beginner of a new area :) Now if you look at the examples send you you can also build user interfaces with polymorph and really sexy ones. But yes this is something needed. Stef > > Thanks a lot > > JP Cook > > On Fri, Jun 19, 2009 at 5:09 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > > wrote: > HI juan > > there is no UiBUilder as in VW in pharo. > This is not that we do not like but nobody implemented it yet :) > > Stef > > On Jun 19, 2009, at 8:32 PM, Juan Pablo Cook wrote: > > > Hi Everybody! Today I found this smalltalk IDE, and I have recently > > installed. I used to use VisualWorks. > > I like the general interface of this framework. What I want to know > > is where I make a "new Canvas"? or a GUI Window? There is a palette > > with widgets and these things? Thanks a lot, I've been finding a > > free IDE to develop in Smalltalk. > > > > Thanks a lot > > > > JP Cook - Argentina > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

June 19, 2009

Re: [Pharo-project] Making GUI'S

by Juan Pablo Cook

Ah ok, And a question, If you can help me... What framework with a UiBuilder for Smalltalk free there is? It's a problem I think... Thanks a lot JP Cook On Fri, Jun 19, 2009 at 5:09 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > wrote: > HI juan > > there is no UiBUilder as in VW in pharo. > This is not that we do not like but nobody implemented it yet :) > > Stef > > On Jun 19, 2009, at 8:32 PM, Juan Pablo Cook wrote: > > > Hi Everybody! Today I found this smalltalk IDE, and I have recently > > installed. I used to use VisualWorks. > > I like the general interface of this framework. What I want to know > > is where I make a "new Canvas"? or a GUI Window? There is a palette > > with widgets and these things? Thanks a lot, I've been finding a > > free IDE to develop in Smalltalk. > > > > Thanks a lot > > > > JP Cook - Argentina > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

June 19, 2009

Re: [Pharo-project] Making GUI'S

by StÃ©phane Ducasse

HI juan there is no UiBUilder as in VW in pharo. This is not that we do not like but nobody implemented it yet :) Stef On Jun 19, 2009, at 8:32 PM, Juan Pablo Cook wrote: > Hi Everybody! Today I found this smalltalk IDE, and I have recently > installed. I used to use VisualWorks. > I like the general interface of this framework. What I want to know > is where I make a "new Canvas"? or a GUI Window? There is a palette > with widgets and these things? Thanks a lot, I've been finding a > free IDE to develop in Smalltalk. > > Thanks a lot > > JP Cook - Argentina > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

June 19, 2009

Re: [Pharo-project] modifying a literal

by Lukas Renggli

> The following code freeze the image, and I have no idea why. > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > Object compile: 'foo ^ Point new'. > pointAssociation := (Object >> #foo) literals first. > self assert: [pointAssociation isKindOf: Association]. > self assert: [pointAssociation value == Point]. > pointAssociation value: Color. Â Â "<-- this is the dangerous line" > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > > If I try to do "Object new foo", the whole image freezes. > > Any idea why? Class bindings are shared among the system dictionary and all code that references them. This mechanism is central so that code with undeclared references can be compiled and automatically resolves later on without having to re-compile the complete system. Your code changes the binding of Point to point to Color. Obviously that's fatal. After executing your code, Point is an alias to Color and the actual Point class is garbage-collected. To make your code work you need to replace the complete literal with Smalltalk associationAt: #Color Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

June 19, 2009

[Pharo-project] modifying a literal

by Alexandre Bergel

Dear List, The following code freeze the image, and I have no idea why. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Object compile: 'foo ^ Point new'. pointAssociation := (Object >> #foo) literals first. self assert: [pointAssociation isKindOf: Association]. self assert: [pointAssociation value == Point]. pointAssociation value: Color. "<-- this is the dangerous line" -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= If I try to do "Object new foo", the whole image freezes. Any idea why? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

June 19, 2009

Re: [Pharo-project] Making GUI'S

by Cameron Sanders

Didn't I read somewhere that you can graphically "group" morphs together via a menu option (e.g. make one widget a child of another)? If so, and if relative positioning is preserved, then given how one can create morphs in a workspace, it seems like the capability is nearly there. We just need a browser to enable full binding to the callbacks/blocks and a code storage spec that is compact. It seems like it should be dead simple to build one from scratch, even if the capability I inquired about (in the first sentence of this email) is not present. I don't know what I am waiting for -- except more time -- because I guess I should build such a thing. (Are there any Pharo/squeak coders available for part-time consulting over the next year? ...At student level pay I must add.) I too want a GUI builder. -Cam On Jun 19, 2009, at 3:22 PM, Michael Roberts wrote: > I think the question was 'where is the UI builder'?. In VW you have a > builder where you can drag and drop (to a certain extent) widgets on a > canvas and define their properties. I'm not sure we have this in > Pharo. > > thanks, > >

June 19, 2009

Re: [Pharo-project] Making GUI'S

by Michael Roberts

I think the question was 'where is the UI builder'?. In VW you have a builder where you can drag and drop (to a certain extent) widgets on a canvas and define their properties. I'm not sure we have this in Pharo. thanks, Mike

June 19, 2009