| edit FeatureMap Text feature from text field in a form [message #431549] |
Thu, 16 July 2009 02:55  |
 John J. Franey
Messages: 31
Registered: July 2009 |
Member |
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Sorry for bugging you on what is probably an easy one. I've been trying
to teach myself how to build a form with emf for too many hours now. I
read and re-read the EMF Second Edition on EMF.Edit, and click through
the source code and look at examples and I am still perplexed. Please
help. I'm new to swt, jface and emf.
I want to create a master-details form. The master side is ok for me,
the devil is in the details (sorry, could not resist.) I started with
the generated editor and turned it into a FormEditor. One of the pages
added is my master-details form.
My ecore is generated from xml schema with mixed content. In the details
form, I would like text form fields to be associated with the Text node
of the FeatureMap.
The ModifyEvent handler of my text fields has access to the editingDomain
and adapterFactory. It also has access to the parent of the FeatureMap's
container.
So my question is: how do I write the form's text field into the Text
feature of the feature map? The things I've tried don't work. I'd also
like to make sure the change event propagation is not suppressed.
[I don't think I need a AdapterFactoryContentProvider because, as I
understand, this is used for adapting the ItemProvider to jface Viewer
provider interfaces. My details form does not contain jface viewers.]
toolkit.createLabel(client, "description");
textDescription = toolkit.createText(client, "", SWT.SINGLE);
textDescription.setLayoutData(layoutData);
textDescription.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
String changedText = textDescription.getText();
// description is the container of the 'mixed' FeatureMap
DescriptionType description =
eventDefinition.getDescription();
// how do I update the model?
}
Here is segment of the xml schema:
<xs:element name="event-definition">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" ref="description"/>
.... other stuff elided....
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="description">
<xs:complexType mixed="true">
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
Thanks.
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| Re: edit FeatureMap Text feature from text field in a form [message #431560 is a reply to message #431549] |
Thu, 16 July 2009 16:39  |
Ed Merks
Messages: 33142
Registered: July 2009 |
Senior Member |
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John,
Comments below.
John J. Franey wrote:
> Sorry for bugging you on what is probably an easy one. I've been trying
> to teach myself how to build a form with emf for too many hours now. I
> read and re-read the EMF Second Edition on EMF.Edit, and click through
> the source code and look at examples and I am still perplexed. Please
> help. I'm new to swt, jface and emf.
>
That's a lot to learn at once...
> I want to create a master-details form. The master side is ok for me,
> the devil is in the details (sorry, could not resist.) I started with
> the generated editor and turned it into a FormEditor. One of the pages
> added is my master-details form.
>
Not sure if the forms stuff in here helps:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=108470
> My ecore is generated from xml schema with mixed content. In the details
> form, I would like text form fields to be associated with the Text node
> of the FeatureMap.
>
There can be many...
> The ModifyEvent handler of my text fields has access to the editingDomain
> and adapterFactory. It also has access to the parent of the FeatureMap's
> container.
>
> So my question is: how do I write the form's text field into the Text
> feature of the feature map? The things I've tried don't work. I'd also
> like to make sure the change event propagation is not suppressed.
>
Things like FeatureMapUtil.addText help, but I assume you want to change
the existing text entry.
Methods like FeatureMapUtil.createTextEntry are useful, and then you can
use a SetCommand to replace the current feature map entry.
> [I don't think I need a AdapterFactoryContentProvider because, as I
> understand, this is used for adapting the ItemProvider to jface Viewer
> provider interfaces. My details form does not contain jface viewers.]
>
>
>
> toolkit.createLabel(client, "description");
> textDescription = toolkit.createText(client, "", SWT.SINGLE);
> textDescription.setLayoutData(layoutData);
> textDescription.addModifyListener(new ModifyListener() {
> public void modifyText(ModifyEvent e) {
> String changedText = textDescription.getText();
>
> // description is the container of the 'mixed' FeatureMap
> DescriptionType description =
> eventDefinition.getDescription();
>
> // how do I update the model?
> }
>
>
>
I'm not sure how you will deal with the fact that the getMixed() feature
map can have multiple entries for which FeatureMapUtil.isText is true...
> Here is segment of the xml schema:
>
>
> <xs:element name="event-definition">
> <xs:complexType>
> <xs:sequence>
> <xs:element minOccurs="0" ref="description"/>
> .... other stuff elided....
> </xs:sequence>
> <xs:attribute name="id" type="xs:ID"/>
> </xs:complexType>
> </xs:element>
>
> <xs:element name="description">
> <xs:complexType mixed="true">
> <xs:attribute name="id" type="xs:ID"/>
> </xs:complexType>
> </xs:element>
>
I don't understand why this complex type wasn't just given simple
content of type xsd:string. That would certainly make the EMF model for
it nicer and validates the same XML...
>
> Thanks.
>
>
>
>
>
Ed Merks
Professional Support: https://www.macromodeling.com/
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