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| Re: Question about property sheet [message #193255 is a reply to message #193206] |
Wed, 18 June 2008 10:31   |
Eclipse User |
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Originally posted by: merks.ca.ibm.com
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Toan,
Have a look at
3.1 Recipe: Create your own property editor in a generated
application
< http://wiki.eclipse.org/EMF/Recipes#Recipe:_Create_your_own_ property_editor_in_a_generated_application>
Here's an example from ETypedElementItemProvider where we filter the choices
protected void addETypePropertyDescriptor(Object object)
{
itemPropertyDescriptors.add
(new ItemPropertyDescriptorWithUniqueChoiceOfValueLabels
(((ComposeableAdapterFactory)adapterFactory).getRootAdapterF actory(),
getResourceLocator(),
getString("_UI_ETypedElement_eType_feature"),
getString("_UI_ETypedElement_eType_description"),
EcorePackage.Literals.ETYPED_ELEMENT__ETYPE,
true,
false,
true,
null,
null,
null)
{
@Override
public Collection<?> getChoiceOfValues(Object object)
{
Toan wrote:
> Hello everybody,
> I have two questions about property sheet:
> 1. Can I use another editor (a plug-in or my own editor) instead of
> the editor which is given by GMF when I set Multi-line = true?
> Generally, can I customize a property field (of any type not only
> string type) to call to an plug-in to set its value? If yes, how can I
> do that?
> 2. How can I filter the element list appearing in the dialog of
> multi-valued attribute. For example I have 3 classes A, B, C following:
> _____________ __________ _________
> |Class A |attrsB |Class B | |Class C |
> | |---------->| |<|---------| |
> | | 0..*| | | |
> |____________| |_________| |________|
> Class A has a relation association with class B, and Class C inherits
> from class B. How can I restrict the list in the dialog multi-valued
> attribute setting the value attrsB of class A to show only instances
> of the class B and not those of the class C?
> Thanks in advanced!
> Toan.
>
< http://wiki.eclipse.org/EMF/Recipes#Recipe:_Create_your_own_ property_editor_in_a_generated_application>
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Toan,<br>
<br>
Have a look at<br>
<blockquote><a
href=" http://wiki.eclipse.org/EMF/Recipes#Recipe:_Create_your_own_ property_editor_in_a_generated_application"><span
class="tocnumber">3.1</span> <span class="toctext">Recipe: Create
your own property editor in a generated application</span></a><br>
</blockquote>
Here's an example from ETypedElementItemProvider where we filter the
choices<br>
<blockquote><small>
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| Re: Question about property sheet [message #193680 is a reply to message #193475] |
Thu, 19 June 2008 12:34 |
| Eclipse User |
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Originally posted by: merks.ca.ibm.com
Toan,
I would have thought it would work for both, but if not, I don't know
why not... Sorry...
Toan wrote:
> I test with EMF, it works! Do I have to do other configurations in
> order to make it work in GMF and what are those configurations? Thanks!
> Toan.
>
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| Re: Question about property sheet [message #193916 is a reply to message #193885] |
Fri, 20 June 2008 12:18 |
| Eclipse User |
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Originally posted by: merks.ca.ibm.com
Toan,
Comments below.
Toan wrote:
> Hi Ed Merks,
> Now I know where to modify to make it work. That's in the methode
> public IPropertySource getPropertySource(Object object) {}
> of file xxxPropertySection.java in the package xxx.diagram.sheet in
> which xxx is name of my project. The methode look like this:
> public IPropertySource getPropertySource(Object object) {
> if (object instanceof IPropertySource) {
> return (IPropertySource) object;
> }
> AdapterFactory af = getAdapterFactory(object);
> if (af != null) {
> IItemPropertySource ips = (IItemPropertySource) af.adapt(object,
> IItemPropertySource.class);
> if (ips != null) {
> return new PropertySource(object, ips)
In AdapterFactoryContent provider this call is factored into a separate
method so that it's possible to override the creation without
duplicating the rest of the logic. I think it would be reasonable to
open a bugzilla enhancement request to factor out the "new
PropertySource" into a separate method. Looking closely at the
generated code, it makes me wonder why this method is even generated.
There's nothing specific to the model here and it could just as easily
be moved up to the base class (I think).
> {
> @Override
> protected IPropertyDescriptor
> createPropertyDescriptor(IItemPropertyDescriptor itemPropertyDescriptor)
> {
> return new
> PropertyDescriptor(object, itemPropertyDescriptor)
> {
> @Override
> public CellEditor
> createPropertyEditor(Composite composite)
> {
> // Test for your case based on the feature or
> the type of the feature.
> // See the super method for details.
> //
> Object feature =
> temPropertyDescriptor.getFeature(this.object);
> return super.createPropertyEditor(composite);
> }
> };
> }
> };
> }
> }
> if (object instanceof IAdaptable) {
> return (IPropertySource) ((IAdaptable) object)
> .getAdapter(IPropertySource.class);
> }
> return null;
> }
>
Thanks for sharing the solution. Would you consider updating the wiki
recipe with an additional "in GMF you have to do it like this" section?
> I have a question: Does the plug-in must depend on the packages
> graphic of eclipse or not?
Well, the argument is Composite so you have to create something that has
that composite as the parent.
> Can I use any existing widget in Java which is not based on eclipse
> packages graphic or not?
Not sure, but it does need to be parented by Composite since that's
where the result will be "hosted".
> If yes, how can I call the widget from this method? Thanks in advance!
> Toan.
>
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