Ext GWT 3.0 Developer Preview 1 http://www.sencha.com/blog/ext-gwt-3-dev-preview-1 The Ext GWT team has been hard at work on our Ext GWT 3.0 release. We are happy to announce the availability of our first developer preview release. en-us darrell@extjs.com Copyright 2011 2011-06-16T21:00:43+00:00 Comment by Hansjörg Oppermann Why does the Maven paragraph was removed from the article? Maven is now no longer supported? Why does the Maven paragraph was removed from the article? Maven is now no longer supported?

]]> Tue, 19 Jul 2011 07:14 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:24229#date:07:14 Comment by Adrien @Alain Im interested in your “save localy” solution. I’ll apreciate if you could share your solution Thanks Adrien @Alain

Im interested in your “save localy” solution.
I’ll apreciate if you could share your solution

Thanks smile


Adrien

]]> Tue, 12 Jul 2011 13:55 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23902#date:13:55 Comment by Colin Alworth @William Bonawentura We don’t yet have such an API for this, as that was mainly consumed by the Bindings code, which is being replaced by GWT’s own editor framework. Such an interface can be defined again, but without the Map<String,?> backing of the models, getting a reference to the property that was changed would be tricky. This opens the doors to using AutoBeans and RequestFactory, not to mention standard java beans. It is also worth pointing out that GWT’s editor framework isn’t based on an observer pattern, but flow-synchronization instead. @William Bonawentura
We don’t yet have such an API for this, as that was mainly consumed by the Bindings code, which is being replaced by GWT’s own editor framework. Such an interface can be defined again, but without the Map<String,?> backing of the models, getting a reference to the property that was changed would be tricky.

This opens the doors to using AutoBeans and RequestFactory, not to mention standard java beans. It is also worth pointing out that GWT’s editor framework isn’t based on an observer pattern, but flow-synchronization instead.

]]> Wed, 06 Jul 2011 00:40 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23779#date:00:40 Comment by William Bonawentura Would PropertyAccess still be implemented Observable pattern (like ChangeEventSource with Model)? Would PropertyAccess still be implemented Observable pattern (like ChangeEventSource with Model)?

]]> Fri, 01 Jul 2011 14:54 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23670#date:14:54 Comment by raivis @Colin Alworth I’ll wait until some data widgets will be available and see how to code tabular data view. I’ll fill ticket if I will still have questions after that. @Colin Alworth
I’ll wait until some data widgets will be available and see how to code tabular data view. I’ll fill ticket if I will still have questions after that.

]]> Tue, 28 Jun 2011 08:32 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23552#date:08:32 Comment by Piotr Kosmowski Finally. Can’t wait to see what your new child can do Finally. Can’t wait to see what your new child can do smile

]]> Mon, 27 Jun 2011 23:20 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23529#date:23:20 Comment by Colin Alworth @raivis Take a look at the source of the ValueProvider instance that can read into a ModelData - it can be easily adapted to work with anything backed by Map&lt;String, Object&gt;. The legacy jar is made to work with the current Ext GWT api, which is not likely to change with respect to data models soon. While this change is annoying to work with, closing this door has opened many others. Without this change, support for RequestFactory or AutoBeans are effectively impossible, and by making this change, we no longer need to support the BeanModel generation, but can use this more efficient method of reading properties without needing this psuedo-reflection to get access to arbitrary runtime methods. Drop by #extgwt on freenode or file a ticket if you’d like to discuss this more - perhaps we’ve missed an important usecase or maybe we can explain better the direction we are headed. @raivis
Take a look at the source of the ValueProvider instance that can read into a ModelData - it can be easily adapted to work with anything backed by Map<String, Object>. The legacy jar is made to work with the current Ext GWT api, which is not likely to change with respect to data models soon.

While this change is annoying to work with, closing this door has opened many others. Without this change, support for RequestFactory or AutoBeans are effectively impossible, and by making this change, we no longer need to support the BeanModel generation, but can use this more efficient method of reading properties without needing this psuedo-reflection to get access to arbitrary runtime methods.

Drop by #extgwt on freenode or file a ticket if you’d like to discuss this more - perhaps we’ve missed an important usecase or maybe we can explain better the direction we are headed.

]]> Mon, 27 Jun 2011 18:02 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23502#date:18:02 Comment by raivis @Colin Alworth Yes, I understand there’s a legacy package. But for how long will it be supported by GXT? I am afraid that after some versions of GXT I will have to rewrite my one Data class and one generator class to hundreds of new data classes and generator classes. @Colin Alworth
Yes, I understand there’s a legacy package. But for how long will it be supported by GXT? I am afraid that after some versions of GXT I will have to rewrite my one Data class and one generator class to hundreds of new data classes and generator classes.

]]> Mon, 27 Jun 2011 11:04 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23471#date:11:04 Comment by Brendan Coughran @Sebastien Actually that is a misprint. Currently only SVG and VML are supported. We may eventually add a Canvas engine. @Sebastien
Actually that is a misprint. Currently only SVG and VML are supported. We may eventually add a Canvas engine.

]]> Fri, 24 Jun 2011 21:10 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23348#date:21:10 Comment by Sebastien Tardif It’s interesting to see that this support Canvas, quote: “Ext GWT 3.0 draws gorgeous charts using SVG, Canvas and VML” In preview release of Ext JS 4, Canvas was supported then just before release, Canvas code was removed. It’s interesting to see that this support Canvas, quote: “Ext GWT 3.0 draws gorgeous charts using SVG, Canvas and VML”

In preview release of Ext JS 4, Canvas was supported then just before release, Canvas code was removed.

]]> Fri, 24 Jun 2011 04:55 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23312#date:04:55 Comment by Rogerio Valente @Alain, Hi Alain, please send message to rogerio[dot]valente[at]gmail[dot]com Thanks man. @Alain,

Hi Alain, please send message to rogerio[dot]valente[at]gmail[dot]com

Thanks man.

]]> Thu, 23 Jun 2011 02:09 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23281#date:02:09 Comment by Robert La Ferla And I forgot to say that this is very very cool!&nbsp; I guess the multiple column sort in Grid is taking a backseat for the time being or is that still in the release? And I forgot to say that this is very very cool!  I guess the multiple column sort in Grid is taking a backseat for the time being or is that still in the release?

]]> Thu, 23 Jun 2011 00:44 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23278#date:00:44 Comment by Robert La Ferla What’s the timeframe for the DP2 release?&nbsp; I am anxious try UIBinder with GXT 3.&nbsp; Also, why not rename Ext GWT to GXT for 3.0 once and for all? What’s the timeframe for the DP2 release?  I am anxious try UIBinder with GXT 3.  Also, why not rename Ext GWT to GXT for 3.0 once and for all?

]]> Thu, 23 Jun 2011 00:19 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23277#date:00:19 Comment by Alain @Lily Was your comment for me ? If yes what it is that you dont understand ?&nbsp; I just introduced a way to save GXT Chart on the client(no server and no executable) @Rogerio Do you have an E-Mail where i can reach you ? @Lily
Was your comment for me ?
If yes what it is that you dont understand ?  I just introduced a way to save GXT Chart on the client(no server and no executable)

@Rogerio
Do you have an E-Mail where i can reach you ?

]]> Tue, 21 Jun 2011 07:12 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23193#date:07:12 Comment by lily the whole life have to learn endless,although now i cannt understand what you introduce,i believe i will get it in the future the whole life have to learn endless,although now i cannt understand what you introduce,i believe i will get it in the future

]]> Tue, 21 Jun 2011 06:22 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23185#date:06:22 Comment by Rogério Valente @Alain Yes Alain. That will be a great feature on my project. I’ll wait your message. Thanks man. @Alain
Yes Alain. That will be a great feature on my project.
I’ll wait your message.

Thanks man.

]]> Mon, 20 Jun 2011 19:46 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23174#date:19:46 Comment by Alain @Rogerio Plase hav a loot at : http://gwt4air.googlecode.com/svn/trunk/exporter/GwtAir.html and let me know if that s what you are looking for. If yes i ll be able to provide you the code tomorrow of the day after tomorrow @Rogerio
Plase hav a loot at : http://gwt4air.googlecode.com/svn/trunk/exporter/GwtAir.html
and let me know if that s what you are looking for. If yes i ll be able to provide you the code tomorrow of the day after tomorrow

]]> Mon, 20 Jun 2011 18:35 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23170#date:18:35 Comment by Brendan Coughran @Sam Yes we plan to implement all the things you mentioned. @Sam
Yes we plan to implement all the things you mentioned.

]]> Mon, 20 Jun 2011 17:30 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23167#date:17:30 Comment by Rogério Valente @Alain, that will be a great help. Thank you very much. @Alain,

that will be a great help.
Thank you very much.

]]> Mon, 20 Jun 2011 14:11 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23165#date:14:11 Comment by Alain Allright. I will bring our solution in a form where i can share that with you then i ll give you the code. This might take one day or two dough. I hope this is ok for you. Allright. I will bring our solution in a form where i can share that with you then i ll give you the code.
This might take one day or two dough. I hope this is ok for you.

]]> Mon, 20 Jun 2011 13:42 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23163#date:13:42 Comment by Rogério Valente @Alain I’m using GXT 2.xxx. I downloaded the 3.xx only to test. I’ll apreciate if you could share your solution. @Alain

I’m using GXT 2.xxx.
I downloaded the 3.xx only to test.

I’ll apreciate if you could share your solution.

]]> Mon, 20 Jun 2011 13:38 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23162#date:13:38 Comment by Alain @Rogerio Are you using GXT 2.xxx or 3.xx ? If you are using 2.xxx i might have a solution for you. @Rogerio
Are you using GXT 2.xxx or 3.xx ?
If you are using 2.xxx i might have a solution for you.

]]> Mon, 20 Jun 2011 13:30 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23161#date:13:30 Comment by Rogério Valente @Alain I’m trying to implement “save as image locally” in a gwt project but it’s not working fine. Any tips? thanks in advance. @Alain

I’m trying to implement “save as image locally” in a gwt project but it’s not working fine.
Any tips?

thanks in advance.

]]> Mon, 20 Jun 2011 13:14 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23160#date:13:14 Comment by Alain @Ariya, @Henry We will go with Flash for now. Easier for us to integrate with GXT 2.xxx For 3.xxx we will see how to do that if we ever switch. @Ariya, @Henry
We will go with Flash for now. Easier for us to integrate with GXT 2.xxx
For 3.xxx we will see how to do that if we ever switch.

]]> Mon, 20 Jun 2011 11:49 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23158#date:11:49 Comment by Rogério Valente Hi @Brendan, Do you have an implementation of that solution? Hi @Brendan,

Do you have an implementation of that solution?

]]> Mon, 20 Jun 2011 11:44 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23157#date:11:44 Comment by Ariya @Alain: You can run PhantomJS on the client-side, there are executables for Windows, Mac OS X, and Linux. But if you want pure in-browser solution, then PhantomJS is not for you. @Alain: You can run PhantomJS on the client-side, there are executables for Windows, Mac OS X, and Linux. But if you want pure in-browser solution, then PhantomJS is not for you.

]]> Sat, 18 Jun 2011 17:59 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23098#date:17:59 Comment by Alain @Henry We dont want to hit there server for that. It has to be done on the client for us. That s why phantomjs is also not an option. @Henry
We dont want to hit there server for that.
It has to be done on the client for us. That s why phantomjs is also not an option.

]]> Sat, 18 Jun 2011 08:55 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23088#date:08:55 Comment by Henry P @alain Have you looked at phantomjs?&nbsp; Allows you to run a headless webkit on the server.&nbsp; create pdfs, images, etc. @alain Have you looked at phantomjs?  Allows you to run a headless webkit on the server.  create pdfs, images, etc.

]]> Sat, 18 Jun 2011 07:12 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23083#date:07:12 Comment by Sam I hope the charts will support events &amp; tooltips in the coming releases. Any plan of supporting stacked bars? I hope the charts will support events & tooltips in the coming releases. Any plan of supporting stacked bars?

]]> Sat, 18 Jun 2011 05:16 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23079#date:05:16 Comment by Alain @Brendan I m Aware of that. But there are some problems with that approach 1) Not cross browser 2) Cant be done on the client So not suitable for us. @Brendan
I m Aware of that. But there are some problems with that approach

1) Not cross browser
2) Cant be done on the client

So not suitable for us.

]]> Fri, 17 Jun 2011 21:41 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23069#date:21:41 Comment by Brendan Coughran @Rogerio @Alain For the SVG engine you can save the DOM of the chart surface to a .svg file, which in turn can be converted to PDF, PNG, JPG, etc… @Rogerio @Alain For the SVG engine you can save the DOM of the chart surface to a .svg file, which in turn can be converted to PDF, PNG, JPG, etc…

]]> Fri, 17 Jun 2011 20:53 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23067#date:20:53 Comment by Alain @Rogerio Unfortunatly GXT 3.xxx will also be a big problem for us because we will no be able to export the charts. In most of our applications users are generating reports and we were able to export the charts(Flash based ) to PD, PNG, JPG, etc,,, on the client. With the new release i dont know how we will do that. I might have to write a custom chart extenstion for GXT based on flash once i get my head around how GXT 3 works. If you are working with GXT2.xxx i will soon release a solution that enables saving charts to different formats. Check a demo here : http://gwt4air.googlecode.com/svn/trunk/exporter/GwtAir.html @Rogerio
Unfortunatly GXT 3.xxx will also be a big problem for us because we will no be able to export the charts. In most of our applications users are generating reports and we were able to export the charts(Flash based ) to PD, PNG, JPG, etc,,, on the client. With the new release i dont know how we will do that. I might have to write a custom chart extenstion for GXT based on flash once i get my head around how GXT 3 works.

If you are working with GXT2.xxx i will soon release a solution that enables saving charts to different formats.
Check a demo here : http://gwt4air.googlecode.com/svn/trunk/exporter/GwtAir.html

]]> Fri, 17 Jun 2011 19:58 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23066#date:19:58 Comment by Darrell Meyer @Rogerio @Alain is correct. Saving charts to images is not supported. @Rogerio @Alain is correct. Saving charts to images is not supported.

]]> Fri, 17 Jun 2011 19:45 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23065#date:19:45 Comment by Rogério Valente @Alan Thanks for your reply. I’ve been searching on the web for any solution to save a widget as an image without success. Anyway, I’ll keeping looking. @Alan
Thanks for your reply.
I’ve been searching on the web for any solution to save a widget as an image without success.
Anyway, I’ll keeping looking.

]]> Fri, 17 Jun 2011 19:33 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23063#date:19:33 Comment by Alain @Rogerio I dont think that s supported @Rogerio
I dont think that s supported

]]> Fri, 17 Jun 2011 19:26 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23061#date:19:26 Comment by Colin Alworth @Raivis There is no reason you cannot continue to use models as Map&lt;String, Objects&gt;, with lots of properties keyed to strings. Included in the legacy jar is the ModelData interface, and we will be including the base classes that implement it as well. While some new features, such as GWT’s editor framework or the compile-time XTemplates will not work correctly with runtime models, the v2 XTemplate is also included in the legacy jar, so run-time templates can still be used. @Raivis There is no reason you cannot continue to use models as Map<String, Objects>, with lots of properties keyed to strings. Included in the legacy jar is the ModelData interface, and we will be including the base classes that implement it as well. While some new features, such as GWT’s editor framework or the compile-time XTemplates will not work correctly with runtime models, the v2 XTemplate is also included in the legacy jar, so run-time templates can still be used.

]]> Fri, 17 Jun 2011 18:57 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23058#date:18:57 Comment by Rogério Valente I download and try it. My chalenge here is show a line chart and provide an option do save chart as image. I copied the source of Linechart example and want to implement this feature. Any sugestions? Thanks in advance. I download and try it.
My chalenge here is show a line chart and provide an option do save chart as image.
I copied the source of Linechart example and want to implement this feature.

Any sugestions?
Thanks in advance.

]]> Fri, 17 Jun 2011 17:52 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23055#date:17:52 Comment by raivis About the BaseModel and ModelData Suppose I have a business desktop like application with many windows. By many I mean several hundreds of them. with GXT v2.x I could make one model class and one base window and generate all of the windows i needed If I am right from what I have read so far, you suggest to use severa; hundreds of model classes with implemented gettes and setters and also several hundreds of interfaces? About the BaseModel and ModelData

Suppose I have a business desktop like application with many windows. By many I mean several hundreds of them.

with GXT v2.x I could make one model class and one base window and generate all of the windows i needed

If I am right from what I have read so far, you suggest to use severa; hundreds of model classes with implemented gettes and setters and also several hundreds of interfaces?

]]> Fri, 17 Jun 2011 13:03 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23040#date:13:03 Comment by Matze Can you provide more details regarding the planed timeline for the beta and the final release. Can you provide more details regarding the planed timeline for the beta and the final release.

]]> Fri, 17 Jun 2011 11:18 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23036#date:11:18 Comment by Patrick Santana Looking forward for this major release. Looking forward for this major release.

]]> Fri, 17 Jun 2011 09:26 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23027#date:09:26 Comment by Alain There you go. now you guyz deserve some bravos Looking really promising There you go. now you guyz deserve some bravos smile
Looking really promising

]]> Fri, 17 Jun 2011 07:33 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23018#date:07:33 Comment by Krzysztof Finally No we are waiting for Dev 2 Preview with UiBinder support Finally smile
No we are waiting for Dev 2 Preview with UiBinder support smile

]]> Fri, 17 Jun 2011 05:36 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23008#date:05:36 Comment by raivis Finally )))) Downloading and trying out now Finally smile)))) Downloading and trying out now

]]> Fri, 17 Jun 2011 04:44 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23004#date:04:44 Comment by Shaoning Zeng Looks cool! Looks cool!

]]> Fri, 17 Jun 2011 04:26 GMT http://www.sencha.com/blog//ext-gwt-3-dev-preview-1#id:23003#date:04:26