GWT-Ext

[Eric Clayberg]

What is the state of this gwt-ext integration into GWT DESIGNER ?

It is curently under development. See the rest of this thread for details.

[Eric Clayberg]

The latest build now includes much more advanced GWT-Ext support including a GWT-Ext palette that will appear when GWT-Ext has been added to your project classpath and inherited into yoru module.

Note that this support is considered to be in beta and will likely evolve in the future. Currently supported components include:

Button, SplitButton, CycleButton, CheckItem, ColorPalette, ProgressBar, ComboBox, Checkbox, Radio, NumberField, DataPicker, DateField, TimeField, TextField, TextArea, ToolBar, ToolbarButton, ToolbarMenuButton, ToolbarFill, ToolbarSpacer, ToolbarSeparator, GridPanel, EditorGridPanel, PropertyGridPanel, TreePanel, TreeNode, Panel, FieldSet, FormPanel, HTMLPanel, MultiFieldPanel, TabPanel.

GWT-Ext Palette and Widgets

GWT-Ext.png (194.04 KiB) Viewed 14579 times

[mgcronin]

Once I include gwtext.jar and modify my gwt.xml file I am able to see GWT-EXT components on my palette. I am having an issue when I try to place one of the GET-EXT components on a panel. I get a pink box that states "Exception during creation of Panel. See "Error log" for details. Eclipse error log included below.
I am using:
Eclipse
Version: 3.3.0
Build id: I20070621-1340

Designer
Version: 6.6.0
Build id: 2008.03.15

GWT-Ext 2.0.2 - from March 6.

This is what my entry point file looks like
<module>
<inherits name="com.google.gwt.user.User"/>
<inherits name='com.gwtext.GwtExt' />
<entry-point class="com.nyiso.gettest.client.ImageViewer"/>
</module>

If you see something obvious help would be appreciated.


eclipse.buildId=I20070625-1500
java.version=1.5.0_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86

Code: Select all

Error
Sat Mar 15 16:57:20 EDT 2008
Designer [6.6.0.200803150954]: Designer is unable to create the 'panel' component at line 19 of ImageViewer.java, using public com.gwtext.client.widgets.Panel() and arguments {}.
    This can be caused by problems evaluating the arguments of the constructor, or by any other problem that triggers an exception in the component when instantiated.
    See your Eclipse <workspace>.metadata\.log file for details.
null

Product: GWT Designer Evaluation
Version: 4.0.0.200803151014
Expected: Eclipse 3.3
Actual: Eclipse 3.3.100.v20070530
Actual Eclipse Build Name:
Actual Eclipse Build ID: I20070621-1340
IDE Actual Name: Eclipse
IDE Actual Version: 3.3.0.v20070613
IDE Actual NL: en_US
Activation Key: GWTDesignerEval-XD0SF-GM0TR-SEU9K
Physical Address: 00-FF-30-44-8F-89, HardwareAddress[00-15-C5-B7-1E-4C], HardwareAddress[00-14-6C-62-57-1B]
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: C:/gwt-windows-1.4.61
Platform Product: Eclipse
Platform Version: 3.3.0.v20070613
OS Name: Windows XP
OS Architecture: x86
OS Version: 5.1


com.swtdesigner.properties.PropertyException: Designer is unable to create the 'panel' component at line 19 of ImageViewer.java, using public com.gwtext.client.widgets.Panel() and arguments {}.
    This can be caused by problems evaluating the arguments of the constructor, or by any other problem that triggers an exception in the component when instantiated.
    See your Eclipse <workspace>.metadata\.log file for details.
null
   at com.swtdesigner.model.swt.widgets.ConstructorSourcePropertiesHelper.createObject(ConstructorSourcePropertiesHelper.java:274)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createWidgetInstance(UIObjectInfo.java:308)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createWidget(UIObjectInfo.java:264)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.superCreateWidget(WidgetInfo.java:194)
   at com.swtdesigner.gwt.model.widgets.panel.GwtExtPanelInfo.superCreateWidget(GwtExtPanelInfo.java:63)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.createWidget(WidgetInfo.java:181)
   at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.createWidget(AbstractContainerInfo.java:182)
   at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.createChildrenWidgets(AbstractContainerInfo.java:202)
   at com.swtdesigner.gwt.model.widgets.panel.RootPanelInfo.createGUIComponent(RootPanelInfo.java:69)
   at com.swtdesigner.model.JavaInfo$18.execute(JavaInfo.java:5610)
   at com.swtdesigner.model.swing.properties.custom.DesignTimeHelper.execute(DesignTimeHelper.java:54)
   at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5605)
   at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5586)
   at com.swtdesigner.model.JavaInfo.unlockNotify(JavaInfo.java:5557)
   at com.swtdesigner.model.JavaInfo.endEdit(JavaInfo.java:771)
   at com.swtdesigner.gef.command.common.EditCommand.execute(EditCommand.java:37)
   at org.eclipse.gef.commands.CommandStack.execute(CommandStack.java:78)
   at com.swtdesigner.gef.domain.DesignerEditDomain$1.execute(DesignerEditDomain.java:54)
   at org.eclipse.gef.tools.AbstractTool.executeCurrentCommand(AbstractTool.java:416)
   at org.eclipse.gef.tools.CreationTool.performCreation(CreationTool.java:198)
   at org.eclipse.gef.tools.CreationTool.handleButtonUp(CreationTool.java:122)
   at org.eclipse.gef.tools.AbstractTool.mouseUp(AbstractTool.java:1006)
   at org.eclipse.gef.EditDomain.mouseUp(EditDomain.java:229)
   at com.swtdesigner.gef.domain.DesignerEditDomain.mouseUp(DesignerEditDomain.java:262)
   at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouseReleased(DomainEventDispatcher.java:346)
   at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:511)
   at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:206)
   at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293)
   at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
   at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
   at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
   at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
   at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:153)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:504)
   at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443)
   at org.eclipse.equinox.launcher.Main.run(Main.java:1169)
Caused by: java.lang.NoClassDefFoundError
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
   at com.swtdesigner.model.swt.widgets.ConstructorSourcePropertiesHelper.createObject(ConstructorSourcePropertiesHelper.java:271)
   ... 50 more

[taxaw]

Thank you Eric Clayberg and Sanjiv for all the good job.

[sjivan]

Sweet!! great job guys.

Sanjiv

[taxaw]

I encounter the same problem than mgcronin .
Eclipse 3.3.1.1 Build M20071023-1652
GWT Designer 4 Latest build 2008.03.18
And GWT-EXT Build 2008-03-18

[antoineguidi]

Hello, I have been trying to get my GWT designer to work with GWT-EXT for days. My .xml and .html are set up correctly, the pallete gets the GWT-EXT by itself. The problem is if I drag and drop a gwt-ext control (any) it just doesn't show up, although when I run the application in functions properly (with the gwt-ext widgets). When I add the second control, eclipse-gwt-designer just seem to cycle eternally and I have to kill the application.
I have used several builds of eclipse 3.3, 3.4M, etc. And the latest version of gwt-ext and gwt designer. I can not find what I am doing wrong, I am still in the trial period just waiting for gwt-ext to work to buy your application. Thank you.

[antoineguidi]

Eric, what version of eclipse and gwt-ext are you using? Thanks.

[Konstantin.Scheglov]

antoineguidi, just go and download test project from here:
viewtopic.php?f=11&t=1719&st=0&sk=t&sd=a&start=15#p6317

I just tested and it works for me.
I use WinXP SP2, Java 1.6.0_04-b12, latest GWT Designer (not build however, just run it from sources ).
I've tried also upgrade this test project to Ext 2.0.2 and GWT-Ext 2.0.2, still works.

[ViSPer]

1. (For the User and GWT Designer Developer)
The GWT Designer runs fine with GWT-Ext, if you do this:

Donot use:

Code: Select all

<module>
...   
   <stylesheet src="js/ext/resources/css/ext-all.css" />
   <script src="js/ext/adapter/ext/ext-base.js" />
   <script src="js/ext/ext-all.js" />
...
</module>


This must be taken in the website:

(in the head)

Code: Select all

<link type="text/css" rel='stylesheet' href='js/ext/resources/css/ext-all.css' />

(in the body before nocache.js)

Code: Select all

<script language="javascript" src="js/ext/adapter/ext/ext-base.js"></script>
<script language="javascript" src="js/ext/ext-all.js"></script>


2. (For the GWT Designer Developer)
Can you please add support for design Window and Dialogs direct in the GWT Designer?

(Sorry about my English, I'm not a native speaker.)

[ViSPer]

To say "GWT Designer worked "fine" together with GWT Ext" is not correct.
It worked together ... sometimes.

But it is a good beginning.

[Eric Clayberg]

As stated earlier, our GWT-Ext support is in beta and is still evolving. The current list of supported components was also provided earlier.

As long as you follow the instructions provided earlier in this thread (or simply use the provided example project as a template), GWT-Ext and GWT Designer do work fine together.

If you don't follow those instructions and do not set up GWT-Ext correctly, then they will not work together. Of course, that is true for GWT-Ext in general.

[taxaw]

What's up ?
Layout/Trees ...

[Eric Clayberg]

What's up ?
Layout/Trees ...

Support for complex GWT-Ext UI object swill be added later this year.

[christoff]

I've downloaded the latest GWT designer build but I cannot seem to get it working with GWT-Ext. I can grab a GWT-Ext widget off the palette but once I place it I get the "Exception during creation of Button. See Error Log for details" message, displayed in a box where the button would have been (with a pink background). From what I've read, the current build should allow placement of these objects, is that correct or have I misinterpreted? I am trying to place the button in a GWT panel, not an Ext one (I've tried both but get the same error for the Ext panel). Here is what gets logged when I perform just this operation:

Code: Select all

!ENTRY com.swtdesigner 4 4 2008-04-04 15:30:13.681
!MESSAGE Designer [6.6.0.200804040001]: java.lang.NoClassDefFoundError: Could not initialize class com.gwtext.client.widgets.Button

Product: GWT Designer Subscription
Version: 4.0.0.200804040036
Expected: Eclipse 3.3
Actual: Eclipse 3.3.100.v20070530
Actual Eclipse Build Name:
Actual Eclipse Build ID: M20070921-1145
IDE Actual Name: Eclipse SDK
IDE Actual Version: 3.3.1.r331_v20070904
IDE Actual NL: en_GB
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: C:/Documents and Settings/cd0039/My Documents/APPS/gwt-windows-1.4.61
Platform Product: Eclipse SDK
Platform Version: 3.3.1.r331_v20070904
OS Name: Windows XP
OS Architecture: x86
OS Version: 5.1

!STACK 0
org.apache.commons.lang.exception.NestableError: java.lang.NoClassDefFoundError: Could not initialize class com.gwtext.client.widgets.Button
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createBeanInstance(UIObjectInfo.java:99)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.superCreateBeanInstance(WidgetInfo.java:154)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.createBeanInstance(WidgetInfo.java:149)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.getNewWidgetSize(WidgetInfo.java:224)
   at com.swtdesigner.gwt.gef.policy.absolute.AbsoluteLayoutEditPolicy.getNewComponentSize(AbsoluteLayoutEditPolicy.java:126)
   at com.swtdesigner.gef.policy.common.layout.absolute.AbstractAbsoluteLayoutEditPolicy.showCreateFeedback(AbstractAbsoluteLayoutEditPolicy.java:360)
   at com.swtdesigner.gwt.gef.policy.absolute.AbsoluteLayoutEditPolicy.showCreateFeedback(AbsoluteLayoutEditPolicy.java:97)
   at com.swtdesigner.gef.policy.common.layout.absolute.AbstractAbsoluteLayoutEditPolicy.showLayoutTargetFeedback(AbstractAbsoluteLayoutEditPolicy.java:122)
   at org.eclipse.gef.editpolicies.LayoutEditPolicy.showTargetFeedback(LayoutEditPolicy.java:307)
   at com.swtdesigner.gef.policy.common.layout.absolute.AbstractAbsoluteLayoutEditPolicy.showTargetFeedback(AbstractAbsoluteLayoutEditPolicy.java:143)
   at org.eclipse.gef.editparts.AbstractEditPart.showTargetFeedback(AbstractEditPart.java:1015)
   at org.eclipse.gef.tools.TargetingTool.showTargetFeedback(TargetingTool.java:305)
   at org.eclipse.gef.tools.TargetingTool.handleEnteredEditPart(TargetingTool.java:172)
   at org.eclipse.gef.tools.TargetingTool.setTargetEditPart(TargetingTool.java:289)
   ... <snip>
   at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.gwtext.client.widgets.Button
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at java.lang.Class.newInstance0(Unknown Source)
   at java.lang.Class.newInstance(Unknown Source)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createWidgetInstance(UIObjectInfo.java:311)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createBeanInstance(UIObjectInfo.java:96)
   ... 45 more

!ENTRY com.swtdesigner 4 4 2008-04-04 15:30:16.687
!MESSAGE Designer [6.6.0.200804040001]: Designer is unable to create the 'button' component at line 29 of HelloWorld.java, using public com.gwtext.client.widgets.Button(java.lang.String) and arguments {New Button}.
    This can be caused by problems evaluating the arguments of the constructor, or by any other problem that triggers an exception in the component when instantiated.
    See your Eclipse <workspace>.metadata\.log file for details.
Could not initialize class com.gwtext.client.widgets.Button

Product: GWT Designer Subscription
Version: 4.0.0.200804040036
Expected: Eclipse 3.3
Actual: Eclipse 3.3.100.v20070530
Actual Eclipse Build Name:
Actual Eclipse Build ID: M20070921-1145
IDE Actual Name: Eclipse SDK
IDE Actual Version: 3.3.1.r331_v20070904
IDE Actual NL: en_GB
Code Gen: Flat Mode, Use Existing, First Assignment, Make Final
Events: Anonymous Class
GWT Home: C:/Documents and Settings/cd0039/My Documents/APPS/gwt-windows-1.4.61
Platform Product: Eclipse SDK
Platform Version: 3.3.1.r331_v20070904
OS Name: Windows XP
OS Architecture: x86
OS Version: 5.1

!STACK 0
com.swtdesigner.properties.PropertyException: Designer is unable to create the 'button' component at line 29 of HelloWorld.java, using public com.gwtext.client.widgets.Button(java.lang.String) and arguments {New Button}.
    This can be caused by problems evaluating the arguments of the constructor, or by any other problem that triggers an exception in the component when instantiated.
    See your Eclipse <workspace>.metadata\.log file for details.
Could not initialize class com.gwtext.client.widgets.Button
   at com.swtdesigner.model.swt.widgets.ConstructorSourcePropertiesHelper.createObject(ConstructorSourcePropertiesHelper.java:274)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createWidgetInstance(UIObjectInfo.java:309)
   at com.swtdesigner.gwt.model.widgets.UIObjectInfo.createWidget(UIObjectInfo.java:265)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.superCreateWidget(WidgetInfo.java:194)
   at com.swtdesigner.gwt.model.widgets.WidgetInfo.createWidget(WidgetInfo.java:181)
   at com.swtdesigner.gwt.model.widgets.panel.AbstractContainerInfo.createChildrenWidgets(AbstractContainerInfo.java:202)
   at com.swtdesigner.gwt.model.widgets.panel.RootPanelInfo.createGUIComponent(RootPanelInfo.java:69)
   ... <snip>
   at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.gwtext.client.widgets.Button
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at com.swtdesigner.model.swt.widgets.ConstructorSourcePropertiesHelper.createObject(ConstructorSourcePropertiesHelper.java:271)
   ... 48 more


I can still successfully preview and compile my creation (from within Eclipse) and it displays correctly - it is only the Designer tool that seems to have a problem. I've tried the "Hello GWT-Ext" sample app and get the same result, it works fine everywhere except in the Designer. What could be wrong?