JFace Viewers in Foms

[dfayerma]

I'm having problems using JFace Viewers with Forms.

I first create my Table control using the
toolkit and then create a checkbox table viewer passing the table in the constructor.
The Designer does not understand this concept.

If I comment the creation of the Viewer, the form is displayed successfully in the design view. As soon as I uncomment the creation of the viewer, the Parsing error is displayed.
I tried 3.00 and 3.0.1 versions with the same result.

In general, even if it works, it does not seem right that I have to create the viewer manually in code to use the toolkit table creation.

Here is the source code snipet:
table = toolkit.createTable(client, SWT.HIDE_SELECTION | SWT.CHECK);
table.setLayoutData(new GridData(GridData.FILL_BOTH));
table.addControlListener(new TableControlListener());

final TableColumn tableColumn = new TableColumn(table, SWT.NONE);
tableColumn.setResizable(false);
tableColumn.setWidth(-1);
tableColumn.setText("Questions");

// Table viewer
//tableViewer = new CheckboxTableViewer(table);

The error stack trace:
!STACK 0
java.lang.ClassCastException
at com.swtdesigner.model.swt.jface.viewer.CheckboxTableViewerInfo.acceptAsParent(SourceFile:32)
at com.swtdesigner.model.parser.JavaInfoParser.isParentAndChild(SourceFile:792)
at com.swtdesigner.model.parser.JavaInfoParser.findParentFor(SourceFile:710)
at com.swtdesigner.model.parser.JavaInfoParser.getRootNodes(SourceFile:321)
at com.swtdesigner.gef.DesignerEditor.parseCompilationUnit(SourceFile:726)
....

[Eric Clayberg]

I first create my Table control using the toolkit and then create a checkbox table viewer passing the table in the constructor. The Designer does not understand this concept.

That's right. Designer has never supported adapting a viewer to an existing table.

If you want to create a CheckboxTableViewer, you should use the entry from the JFace Viewers palette (which is still available when editing an Eclipse Form).

Turn the border style off for the viewer and the border will then be drawn by the toolkit.

[dfayerma]

Designer has never supported adapting a viewer to an existing table

Eric,
Before it did not allow to adapt viewer to the table through the designer but it did not break if it is done manually in the code.

I understand that I can adapt an object to the toolkit as a work around the designer limitations but I don't think it is a good programming practice.

Currently toolkit just removes the border, but going forward there may be other customizations that are done in the toolkit (like making headers flat etc.).
Are you planning to fix the parser to at least understand the viewers adapted to existing widgets?[/quote]

[Eric Clayberg]

Are you planning to fix the parser to at least understand the viewers adapted to existing widgets?

Try the latest v3.0.1 build (2005.01.21). Your example code will now work as you have written it.

[dfayerma]

Thanks a lot.
The example is now parsed successfully but it looks like a corrupted jar problem again:
Clicking on any component in the designer causes an error.

java.lang.VerifyError: (class: com/swtdesigner/model/properties/EventsProperty, method: ensureHandlerAndOpen signature: (Lcom/swtdesigner/model/properties/beans/EventSetDescriptor;Lcom/swtdesigner/model/properties/beans/MethodDescriptor;)V) Stack size too large
at com.swtdesigner.model.swt.forms.control.FormsExpandableCompositeInfo.createEventsProperty(SourceFile:113)
at com.swtdesigner.model.swt.widgets.control.ControlInfo.getPropertyList(SourceFile:119)
at com.swtdesigner.model.swt.widgets.composite.AbstractCompositeInfo.getPropertyList(SourceFile:58)
at com.swtdesigner.model.swt.widgets.composite.CompositeInfo.getPropertyList(SourceFile:32)
at com.swtdesigner.model.swt.forms.control.FormsExpandableCompositeInfo.getPropertyList(SourceFile:117)
at com.swtdesigner.model.swt.forms.control.FormsSectionInfo.getPropertyList(SourceFile:88)
at com.swtdesigner.model.JavaInfo.getProperties(SourceFile:974)
at com.swtdesigner.model.JavaInfo.getNonEventProperties(SourceFile:1012)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.showJavaInfoInPropertyTable(SourceFile:660)

[Eric Clayberg]

The example is now parsed successfully but it looks like a corrupted jar problem again

Yes. Try it again now.