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| Re: Multiple view for the same semantic model [message #522743 is a reply to message #522675] |
Tue, 23 March 2010 19:35   |
 Ali Koudri
Messages: 118
Registered: July 2009 |
Senior Member |
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According to related documentation:
"This edit policy handles double click (open) gestures on shapes. When
the user double clicks on an edit part, GEF creates a REQ_OPEN request
and subclasses of this edit policy should handle that request. This
policy should be installed with the policy role OPEN_ROLE. Normally, the
corresponding edit policy role would be defined in EditPolicy, but no
such role currently exists."
I guess you know what you are doing. See below. You will probably have
to adapt the code presented since I never used this policy and I don't
know which kind of request is sent to controller.
Le 23/03/2010 16:04, cuong a écrit :
> Hi Ali,
>
> Thanks for replying. Based on your suggestion I create a new edit policy
> ActorDuplicateViewPolicy which extends OpenEditPolicy
>
> public class ActorDuplicateViewPolicy extends OpenEditPolicy{
>
> @Override
> protected Command getOpenCommand(Request request) {
//retrieve the view targeted by the request
Object element = request.getObjects().get(0);
List<CreateViewRequest.ViewDescriptor> descriptors =
new ArrayList<CreateViewRequest.ViewDescriptor>();
CreateViewRequest.ViewDescriptor viewDescriptor =
new CreateViewRequest.ViewDescriptor(
new EObjectAdapter((EObject) element),
Node.class,
((IHintedType)
XXXElementTypes.getElementType(XXXEditPart.VISUAL_ID)).getSe manticHint(),
getDiagramPreferencesHint());
viewDescriptor.setPersisted(true);
descriptors.add(viewDescriptor);
Command res = null;
if (!descriptors.isEmpty()) {
res = createViews(request, descriptors);
}
if (res == null)
return UnexecutableCommand.INSTANCE;
return res;
> }
private Command createViews(
Request request, List<CreateViewRequest.ViewDescriptor> viewDescriptors)
{
CreateViewRequest createViewRequest =
new CreateViewRequest(viewDescriptors);
//FIXME: set location of new view next to current location
createViewRequest.setLocation(request.getLocation());
Command createCommand = getHost().getCommand(createViewRequest);
if (createCommand != null) {
List result = (List) createViewRequest.getNewObject();
dropRequest.setResult(result);
ArrangeRequest arrangeRequest = new ArrangeRequest(
RequestConstants.REQ_ARRANGE_DEFERRED);
arrangeRequest.setViewAdaptersToArrange(result);
createCommand.chain(getHost().getCommand(arrangeRequest));
}
return createCommand;
}
private View getHostView() {
return (View) (getHost().getModel());
}
private PreferencesHint getDiagramPreferencesHint() {
return ((IGraphicalEditPart)getHost()).getDiagramPreferencesHint();
}
Hope it will help.
Cheers.
>
> }
>
> My idea is to double click on an Actor to duplicate them on the diagram
> view. So inside getOpenCommand function, I use CreateCommand to create a
> new view for Actor. But I have no idea how to create a correct
> viewDescriptor. Or maybe CreateCommand is not the right command to
> duplicate a view ?
> Waiting for your reply :)...
>
>
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| Re: Multiple view for the same semantic model [message #522744 is a reply to message #522743] |
Tue, 23 March 2010 19:39 |
Ali Koudri
Messages: 118
Registered: July 2009 |
Senior Member |
|
|
Le 23/03/2010 20:35, exquisitus a écrit :
> According to related documentation:
>
> "This edit policy handles double click (open) gestures on shapes. When
> the user double clicks on an edit part, GEF creates a REQ_OPEN request
> and subclasses of this edit policy should handle that request. This
> policy should be installed with the policy role OPEN_ROLE. Normally, the
> corresponding edit policy role would be defined in EditPolicy, but no
> such role currently exists."
>
> I guess you know what you are doing. See below. You will probably have
> to adapt the code presented since I never used this policy and I don't
> know which kind of request is sent to controller.
>
> Le 23/03/2010 16:04, cuong a écrit :
>> Hi Ali,
>>
>> Thanks for replying. Based on your suggestion I create a new edit policy
>> ActorDuplicateViewPolicy which extends OpenEditPolicy
>>
>> public class ActorDuplicateViewPolicy extends OpenEditPolicy{
>>
>> @Override
>> protected Command getOpenCommand(Request request) {
> //retrieve the view targeted by the request
> Object element = request.getObjects().get(0);
> List<CreateViewRequest.ViewDescriptor> descriptors =
> new ArrayList<CreateViewRequest.ViewDescriptor>();
> CreateViewRequest.ViewDescriptor viewDescriptor =
> new CreateViewRequest.ViewDescriptor(
> new EObjectAdapter((EObject) element),
> Node.class,
> ((IHintedType)
> XXXElementTypes.getElementType(XXXEditPart.VISUAL_ID)).getSe manticHint(), getDiagramPreferencesHint());
>
> viewDescriptor.setPersisted(true);
> descriptors.add(viewDescriptor);
> Command res = null;
> if (!descriptors.isEmpty()) {
> res = createViews(request, descriptors);
> }
> if (res == null)
> return UnexecutableCommand.INSTANCE;
> return res;
>
>> }
>
> private Command createViews(
> Request request, List<CreateViewRequest.ViewDescriptor> viewDescriptors)
> {
> CreateViewRequest createViewRequest =
> new CreateViewRequest(viewDescriptors);
> //FIXME: set location of new view next to current location
> createViewRequest.setLocation(request.getLocation());
> Command createCommand = getHost().getCommand(createViewRequest);
> if (createCommand != null) {
> List result = (List) createViewRequest.getNewObject();
> dropRequest.setResult(result);
sorry: request.setResult(result); (this method has been adapted from my
DnD policy)
> ArrangeRequest arrangeRequest = new ArrangeRequest(
> RequestConstants.REQ_ARRANGE_DEFERRED);
> arrangeRequest.setViewAdaptersToArrange(result);
> createCommand.chain(getHost().getCommand(arrangeRequest));
> }
> return createCommand;
> }
>
> private View getHostView() {
> return (View) (getHost().getModel());
> }
>
> private PreferencesHint getDiagramPreferencesHint() {
> return ((IGraphicalEditPart)getHost()).getDiagramPreferencesHint();
> }
>
> Hope it will help.
> Cheers.
>
>>
>> }
>>
>> My idea is to double click on an Actor to duplicate them on the diagram
>> view. So inside getOpenCommand function, I use CreateCommand to create a
>> new view for Actor. But I have no idea how to create a correct
>> viewDescriptor. Or maybe CreateCommand is not the right command to
>> duplicate a view ?
>> Waiting for your reply :)...
>>
>>
>
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