- Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo screencasts - how to

by laurent laffont

> >> I want to share how I record screencasts for Pharocasts >> http://pharocasts.blogspot.com/ in case someone wants to participate. Now >> there's 11 screencasts. The difficult part is to have> a good idea / >> scenario for a screencast. Comments and ideas are welcome. >> >> > Thanks for this notes!! > > I always like the "self described" mechanisim. Pharo is written in Pharo. > Can you do a screencast how to do screencasts ? somehow transform this mail > in screencast ? > Here it is: http://pharocasts.blogspot.com/2010/02/how-i-record-screencasts-for-pharoca… Really strange experience to record a screencast to record a screencast ;) Laurent Laffont

Feb. 11, 2010

Re: [Pharo-users] [Pharo-project] Pharo screencasts - how to

by StÃ©phane Ducasse

as I idea I would like to show how to - load XML documents - get an image over the web Stef On Feb 8, 2010, at 10:20 PM, laurent laffont wrote: > Hi, > > I want to share how I record screencasts for Pharocasts http://pharocasts.blogspot.com/ in case someone wants to participate. Now there's 11 screencasts. The difficult part is to have a good idea / scenario for a screencast. Comments and ideas are welcome. > > If you want to publish on Pharocasts I can give you write access. Or if you have a "draft" screencast I can edit it / re-record it for publishing. I try to record screencasts with a minimum duration of 5 mn. > > These instructions are for Linux (but I'm a beginner in video stuff). I don't know which software to use on other operating systems. Have advices ? > > I record with xvidcap http://xvidcap.sourceforge.net/. I define a capture zone of 800x600 (use 4:3 or 16:9 standard resolution. If not you can have poor encoding results). > Set multi-frame mode (you have to right-click on the file button to access preferences, not very intuitive). > I choose AVI format / MPEG 4 codec. > If you open / close applications for the screencast, note that KDE has very good options to memorize / force windows positions, so they are always opened in your capture zone.(Other window managers like E17 have these sort of options). > The trick is to not stop recording when you write errors, you can cut the "wrong" parts later. > > To edit the video, I use avidemux http://fixounet.free.fr/avidemux/. It has Qt and Gtk GUI and work on Linux / Windows / OSX / BSD ..... It's really easy to use. When you want to cut a part, you define the beginning with the A button ( Ctrl-[ ), the end with B button ( Ctrl-] ), then Edit -> Cut ( Ctrl-X ). You can navigate using arrow keys. > When finished, click on save (Choose another filename !!). > > So now you have your screencast in .mpeg file. Note that people using MacOSX Tiger or older have problems to watch this video. So I convert in .mov using ffmpeg http://www.ffmpeg.org/ like this: > ffmpeg -i my_video.mpeg -b 500k my_video.mov. > > (but I think it's not the best command as the video size is bigger and quality lower). > > To publish the video I use Vimeo http://vimeo.com/. I've tried YouTube and Daily Motion but the quality is lower or the video duration is limited. I had problems using the "standard uploader", so I switch to the "basic uploader" on the download page, works better. > > It's really fun to record screencasts, and a good way to show development practices. > > Cheers, > > Laurent Laffont > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Feb. 9, 2010

Re: [Pharo-users] Pharo screencasts - how to

by laurent laffont

On Mon, Feb 8, 2010 at 10:27 PM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > On Mon, Feb 8, 2010 at 10:20 PM, laurent laffont < > laurent.laffont(a)gmail.com> wrote: > >> Hi, >> >> I want to share how I record screencasts for Pharocasts >> http://pharocasts.blogspot.com/ in case someone wants to participate. Now >> there's 11 screencasts. The difficult part is to have> a good idea / >> scenario for a screencast. Comments and ideas are welcome. >> >> > Thanks for this notes!! > > I always like the "self described" mechanisim. Pharo is written in Pharo. > Can you do a screencast how to do screencasts ? somehow transform this mail > in screencast ? > Funny. I was just thinking about it :). Laurent > >> Cheers, >> >> Laurent Laffont >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> >> >

Feb. 8, 2010

Re: [Pharo-users] Pharo screencasts - how to

by Mariano Martinez Peck

On Mon, Feb 8, 2010 at 10:20 PM, laurent laffont <laurent.laffont(a)gmail.com>wrote: > Hi, > > I want to share how I record screencasts for Pharocasts > http://pharocasts.blogspot.com/ in case someone wants to participate. Now > there's 11 screencasts. The difficult part is to have> a good idea / > scenario for a screencast. Comments and ideas are welcome. > > Thanks for this notes!! I always like the "self described" mechanisim. Pharo is written in Pharo. Can you do a screencast how to do screencasts ? somehow transform this mail in screencast ? > > Cheers, > > Laurent Laffont > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > >

Feb. 8, 2010

Pharo screencasts - how to

by laurent laffont

Hi, I want to share how I record screencasts for Pharocasts http://pharocasts.blogspot.com/ in case someone wants to participate. Now there's 11 screencasts. The difficult part is to have a good idea / scenario for a screencast. Comments and ideas are welcome. If you want to publish on Pharocasts I can give you write access. Or if you have a "draft" screencast I can edit it / re-record it for publishing. I try to record screencasts with a minimum duration of 5 mn. These instructions are for Linux (but I'm a beginner in video stuff). I don't know which software to use on other operating systems. Have advices ? I record with xvidcap http://xvidcap.sourceforge.net/. I define a capture zone of 800x600 (use 4:3 or 16:9 standard resolution. If not you can have poor encoding results). Set multi-frame mode (you have to right-click on the file button to access preferences, not very intuitive). I choose AVI format / MPEG 4 codec. If you open / close applications for the screencast, note that KDE has very good options to memorize / force windows positions, so they are always opened in your capture zone.(Other window managers like E17 have these sort of options). The trick is to not stop recording when you write errors, you can cut the "wrong" parts later. To edit the video, I use avidemux http://fixounet.free.fr/avidemux/. It has Qt and Gtk GUI and work on Linux / Windows / OSX / BSD ..... It's really easy to use. When you want to cut a part, you define the beginning with the A button ( Ctrl-[ ), the end with B button ( Ctrl-] ), then Edit -> Cut ( Ctrl-X ). You can navigate using arrow keys. When finished, click on save (Choose another filename !!). So now you have your screencast in .mpeg file. Note that people using MacOSX Tiger or older have problems to watch this video. So I convert in .mov using ffmpeg http://www.ffmpeg.org/ like this: ffmpeg -i my_video.mpeg -b 500k my_video.mov. (but I think it's not the best command as the video size is bigger and quality lower). To publish the video I use Vimeo http://vimeo.com/. I've tried YouTube and Daily Motion but the quality is lower or the video duration is limited. I had problems using the "standard uploader", so I switch to the "basic uploader" on the download page, works better. It's really fun to record screencasts, and a good way to show development practices. Cheers, Laurent Laffont

Feb. 8, 2010

Re: [Pharo-users] graphical/gtk like Smalltalk apps

by Mariano Martinez Peck

2010/1/31 SÃ©bastien Serre <sserre.bx(a)gmail.com> > Hi all, > > I just discover Pharo, and i'm very exited by things i have seen. welcome! We hope you enjoy as much as we do :) > I > have a question (google don't help me). Is it possible to create an > portable executable that run a simple graphical application (gtk > like), I suspect this is higly probable, but I don't find any > Sorry but personally I do not completely agree with you. Just from my point of view, Gtg is not HIGLY portable. Ok, in Linux maybe easier, but whenever you move to Windows, or Mac you may need to compile, etc...Even if that works, that's not being HIGLY portable. I want to tell you this because of what tell you next: The default "UI" of Pharo is Morphic. Morphic is completely implemented in Smalltalk. You don't need anymore than just Pharo running. That's why you can easily run Pharo applications (even with UI) in ANY OS, in robots, iPhone, or whereever you want. You just need Pharo running there. And that's even simpler than other languages and even different than other Smalltalk dialects, because the Pharo virtual machine is written in itself. I mean, the VM is ALSO written in Smalltalk. Actually, it is subset of Smalltalk (with certain limitations), called Slang. Then, there is a translator that converts from that, to C. And then you just compile. For more details, you can see the VMMaker package. So...that's being portable :) But.....there are always trade-offs. Morphic is slower than using direct graphic libraries, maybe it looks ugly for you, etc. There are some tools build on top of Morphic that ca help you buld UI applications. This include a set of gadgets, buttons, panels, etc. It is called Polymorph. For example, evaluate this for some examples: UITheme exampleBasicControls. UITheme exampleColorControls. UITheme exampleDialogs. UITheme exampleGroups. UITheme exampleOtherControls. UITheme exampleWindowWithToolbars. In addition, there is a UIBuilder in progress. You can see a video here: http://www.youtube.com/watch?v=CHbc1t83fEI Finally, if you think Morhpic is ugly, you can just create your own theme. For example, right click on the world -> "System" -> "Preferences" -> In the form type "theme" and press enter -> look where it says "UI Theme". Try each of them and you will see the difference. You can create your own and customize them. And finally, yes, there is a binding to gtk :) but I wanted to let it to the end hahahaha. Actually, the binding was being developed with Squeak and the project is called SqueakGtk. Unfortunately I think the project stopped and it is not continue anymore, but maybe I am wrong. Here is the link: http://squeakgtk.pbworks.com/ There are similar projects. Finally, Esteban Lorenzano is building Mars, an attemp to create a new World that uses the Cocoa (Mac OS library) to render everything. It is in development but I heard that Cocoa is being ported to Windows a Linux so it may be cool. Link: http://www.smallworks.com.ar/productos/Mars Good luck. Mariano documentation on the subject. Can you point me to some links/books on > the topic? > > Kind regards > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

Jan. 31, 2010

Re: [Pharo-users] graphical/gtk like Smalltalk apps

by StÃ©phane Ducasse

> Hi all, > > I just discover Pharo, and i'm very exited by things i have seen. I > have a question (google don't help me). Is it possible to create an > portable executable that run a simple graphical application (gtk > like), I suspect this is higly probable, but I don't find any > documentation on the subject. Hi sebastien Welcome! in Pharo what you do is that you can bundle a reduced image (memory dump) with a set of vm. This is what the oneclick is doing. our goal for the short term is to have a minimal system in which you can load the packages you want. Now about the ui. For now you can only have one main window. There were some attempts to provide support for cross platform ui like WVXwidgets but I do not know the status. At the beginning of Pharo Gwenael Casaccio worked on a binding for GTK for Squeak. People did not react enough so he ported it to GNU Smalltalk. Now if we find the code I imagine that this can be resurrected. For us this is a question of manpower not vision. Stef

Jan. 31, 2010

graphical/gtk like Smalltalk apps

by SÃ©bastien Serre

Hi all, I just discover Pharo, and i'm very exited by things i have seen. I have a question (google don't help me). Is it possible to create an portable executable that run a simple graphical application (gtk like), I suspect this is higly probable, but I don't find any documentation on the subject. Can you point me to some links/books on the topic? Kind regards

Jan. 31, 2010

Re: [Pharo-users] [Seaside] [ANN] seasidehosting.st for Pharo

by stephane ducasse

Thanks a lot :) ! On Jan 29, 2010, at 8:50 AM, Adrian Lienhard wrote: > Hi all, > > I'm happy to announce that seasidehosting.st now supports Pharo! > > There are no special settings or configurations needed. Get a Pharo/Seaside image, for instance from www.seaside.st/download/pharo, install your application, and upload it to seasidehosting.st. > > Before, Pharo was not supported because the special VM used did not run closure images. Since many people asked for support of Pharo, we updated the VM now. It took some time, but as promised, we managed to finish it before the upcoming Pharo 1.0 release. > > I'd like to thank ESUG and netstyle.ch for their continuous support of Seasidehosting! > > Cheers, > Adrian > > ___________________ > http://www.adrian-lienhard.ch/ > > _______________________________________________ > seaside mailing list > seaside(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside >

Jan. 29, 2010

[ANN] seasidehosting.st for Pharo

by Adrian Lienhard

Hi all, I'm happy to announce that seasidehosting.st now supports Pharo! There are no special settings or configurations needed. Get a Pharo/Seaside image, for instance from www.seaside.st/download/pharo, install your application, and upload it to seasidehosting.st. Before, Pharo was not supported because the special VM used did not run closure images. Since many people asked for support of Pharo, we updated the VM now. It took some time, but as promised, we managed to finish it before the upcoming Pharo 1.0 release. I'd like to thank ESUG and netstyle.ch for their continuous support of Seasidehosting! Cheers, Adrian ___________________ http://www.adrian-lienhard.ch/

Jan. 29, 2010