November 2013 - Pharo-users

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by Denis Kudriashov

Hi 2013/11/22 Igor Stasenko <siguctua(a)gmail.com> > > >> 2. instead of returning useful objects, FMOD returns error codes and you >> pass a pointer to receive the object. >> >> - The first consequence is that I have to wrap all the calls e.g. "self >> processErrorCode: self primCreate." where >> processErrorCode: anInteger >> anInteger = 0 ifFalse: [ self error: 'FMOD returned error code ', >> anInteger >> asString ]. >> Is there a more graceful way to do that? >> >> i doubt so.. since it is library API which dictates you to use it in > certain way. > The proper error handling never hurts (except from causing extra code > bloat, of course :) > Is it good idea to override (or create new) #nbCall: method to handle library common logic? (when any library function returns error code)

Nov. 23, 2013

Re: [Pharo-users] Making more memory available to VM on OS X.

by StÃ©phane Ducasse

On Nov 23, 2013, at 5:25 PM, nacho <0800nacho(a)gmail.com> wrote: > Hi, > I'm doing some fractal drawings which requires a great number of iterations > and point drawing. > Once the given fractal set is rendered Pharo becomes very sluggish. This is strange. I can understand that pharo takes time to compute a fractal but I do not see why it would be sluggish after. > Is there > a way to allocate more memory to the VM upon starting it? > thanks > Nacho > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: http://forum.world.st/Making-more-memory-available-to-VM-on-OS-X-tp4724556.… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Nov. 23, 2013

Making more memory available to VM on OS X.

by nacho

Hi, I'm doing some fractal drawings which requires a great number of iterations and point drawing. Once the given fractal set is rendered Pharo becomes very sluggish. Is there a way to allocate more memory to the VM upon starting it? thanks Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Making-more-memory-available-to-VM-on-OS-X-tp4724556.… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 23, 2013

spec and double click

by Lorenz KÃ¶hl

I have a ListComposableModel rendered with spec that I want to do something if an element is double clicked. How do I register the event handler? I know about on:send:to but what Announcement do I use? In my testing with just a symbol #doubleClick it doesn't work (and probably isn't supposed to). thanks, Lo

Nov. 23, 2013

Re: [Pharo-users] Deploying a polymorph app - two questions

by kmo

Benjamin - Many thanks. Your suggestion of World submorphs do: [:e | e delete ] was just what I needed to get rid of the taskbar. However, DisplayScreen hostWindowTitle does not work for me. I'm not using Spec but surely that should make no difference. Is it a platform bug (I'm on ubuntu 13.04) or are you using pharo 3.0? I'm on pharo 2.0 (there is no WorldModel as far as I can see). So, is DisplayScreen hostWindowTitle broken on pharo 2.0? ken -- View this message in context: http://forum.world.st/Deploying-a-polymorph-app-two-questions-tp4724525p472… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 23, 2013

Re: [Pharo-users] [Athens] Finding if a line passes through a specific pixel .

by kilon alios

aaaaaahhh come on ... I am not THAT lazy :D of course I have searched it before asking. Unless I am blind I see loads of bezier methods, none that detects whether a point belong to a curve. But now you mention it I think I remember squeak was able to do add points to a curve via click or something similar, because thats what I wan to do. So I will take a look at it , most probably there is a method in there that does this. I want the user to click on a curve or line and there a new control point will be placed that will allow the user to shape the line or curve to a finer detail. A standard feature for all vector editors , 3d editors, even image editors. I am sorry if I miss something obvious here, its not laziness , its most likely stupidity or just the fact I am very new with this. This is the first time I try to make a vector editor.Again thank you all for trying to help me, you have done already a lot. On Sat, Nov 23, 2013 at 3:38 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > wrote: > > > On Nov 23, 2013, at 11:24 AM, kilon alios <kilon.alios(a)gmail.com> wrote: > > would I sound too lazy to ask in which class ? > > > On Sat, Nov 23, 2013 at 11:35 AM, StÃ©phane Ducasse < > stephane.ducasse(a)inria.fr> wrote: > >> there are bezier algo in the system >> >> Stef >> >> On Nov 20, 2013, at 9:55 PM, kilon alios <kilon.alios(a)gmail.com> wrote: >> >> yes I found the formula for straight lines and I was wondering what was >> the one for bezier curves, so your reply could not have come a better >> moment. Thanks I will study it and implement it. >> >> >> On Wed, Nov 20, 2013 at 9:21 PM, Hilaire Fernandes < >> hilaire.fernandes(a)gmail.com> wrote: >> >>> Hello, >>> >>> You may want to calculate the distance between the mouse position and >>> your path (I guess a bezier curve). Then given this distance and a >>> tolerance to zero you decide if the mouse position is more or less on >>> your path. Calculating the distance you will also get for free the place >>> where to add a point on your path. >>> >>> http://blog.gludion.com/2009/08/distance-to-quadratic-bezier-curve.html >>> >>> Hilaire >>> >>> >>> Le 14/11/2013 21:07, kilon alios a Ã©crit : >>> > In order to do that I will have to check that the line passes through a >>> > specific pixel. Or to be more correct that the place that mouse has >>> > clicked is where my path passes through. How I do that ? Can Athens do >>> > that ? Can athens tell me which pixels my path passes through ? >>> > >>> >>> >>> -- >>> Dr. Geo http://drgeo.eu >>> >>> >>> >> >> > > >

Nov. 23, 2013

Re: [Pharo-users] Spec - Tutorial Series

by StÃ©phane Ducasse

> When a Spec UI is build, the spec are looked up on class side. > > But in some special cases you can provide directly a SpecLayout object to a model. > > > Why on class side? > The goal was to have a static description of a widget layout so that we can reuse it without to have to automatically create an instance. > > Ben

Nov. 23, 2013

Re: [Pharo-users] [Athens] Finding if a line passes through a specific pixel .

by StÃ©phane Ducasse

On Nov 23, 2013, at 11:24 AM, kilon alios <kilon.alios(a)gmail.com> wrote: > would I sound too lazy to ask in which class ? > > > On Sat, Nov 23, 2013 at 11:35 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > there are bezier algo in the system > > Stef > > On Nov 20, 2013, at 9:55 PM, kilon alios <kilon.alios(a)gmail.com> wrote: > >> yes I found the formula for straight lines and I was wondering what was the one for bezier curves, so your reply could not have come a better moment. Thanks I will study it and implement it. >> >> >> On Wed, Nov 20, 2013 at 9:21 PM, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: >> Hello, >> >> You may want to calculate the distance between the mouse position and >> your path (I guess a bezier curve). Then given this distance and a >> tolerance to zero you decide if the mouse position is more or less on >> your path. Calculating the distance you will also get for free the place >> where to add a point on your path. >> >> http://blog.gludion.com/2009/08/distance-to-quadratic-bezier-curve.html >> >> Hilaire >> >> >> Le 14/11/2013 21:07, kilon alios a Ã©crit : >> > In order to do that I will have to check that the line passes through a >> > specific pixel. Or to be more correct that the place that mouse has >> > clicked is where my path passes through. How I do that ? Can Athens do >> > that ? Can athens tell me which pixels my path passes through ? >> > >> >> >> -- >> Dr. Geo http://drgeo.eu >> >> >> > >

Nov. 23, 2013

Re: [Pharo-users] Deploying a polymorph app - two questions

by Benjamin

On 23 Nov 2013, at 13:58, kmo <voxkmp(a)gmail.com> wrote: > I have written a small Polymorph application in Pharo 2.0. I have some > questions about deploying it. > > My app consists of a single morph. I would like to fill the pharo window > with the morph and have the morph resize when the user resizes the pharo > window. > > I'm pretty close to what I want. I have made my morph a subclass of > FullscreenMorph and it is filling the window nicely. > > I just need two things. > > One - I need to change the pharo window title to the title of my > application. I have tried DisplayScreen hostWindowTitle and it seems to have > no effect. In Spec, I use DisplayScreen hostWindowTitle: aString, and it works. > Two - I need to get rid of the Pharo window status bar - the one at the > bottom which shows you the various windows, browsers, and workspaces you > have open. World changeProportionalLayout. World submorphs do: [:e | e delete ]. (Smalltalk at: #PolymorphSystemSettings) perform: #desktopColor: with: (Color r: 0.78 g: 0.753 b: 0.71). ((Smalltalk at: #UITheme) perform: #currentSettings) perform: #windowColor: with: (Color r: 0.745 g: 0.745 b: 0.745). (Smalltalk at: #TaskbarMorph) perform: #showTaskbar: with: false Thatâs what I do in Spec :) For more info, you can have a look at WorldModel Ben > > Can anyone give me some guidance? > > Thanks. > > > > -- > View this message in context: http://forum.world.st/Deploying-a-polymorph-app-two-questions-tp4724525.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Nov. 23, 2013

Deploying a polymorph app - two questions

by kmo

I have written a small Polymorph application in Pharo 2.0. I have some questions about deploying it. My app consists of a single morph. I would like to fill the pharo window with the morph and have the morph resize when the user resizes the pharo window. I'm pretty close to what I want. I have made my morph a subclass of FullscreenMorph and it is filling the window nicely. I just need two things. One - I need to change the pharo window title to the title of my application. I have tried DisplayScreen hostWindowTitle and it seems to have no effect. Two - I need to get rid of the Pharo window status bar - the one at the bottom which shows you the various windows, browsers, and workspaces you have open. Can anyone give me some guidance? Thanks. -- View this message in context: http://forum.world.st/Deploying-a-polymorph-app-two-questions-tp4724525.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 23, 2013