Eclipse Community Forums: GMF (Graphical Modeling Framework) » shouldProceed Changing the Text of Message Dialog

Help

Home

Home » Modeling » GMF (Graphical Modeling Framework) » shouldProceed Changing the Text of Message Dialog

Show: Today's Messages :: Show Polls :: Message Navigator

shouldProceed Changing the Text of Message Dialog [message #231547]

Wed, 27 May 2009 11:42

govind Ra

Messages: 95
Registered: July 2009

Member

Hi All,,

I want to show the Custom Message when the user tries to delete any figure.

I checked the ItemSemanticEditPolicy class of editpart where we can call
shouldProceed(req) which show a message dailog..

I want to show the custom message as the name of the figure is used
somewhere else .

But the messages are final.

Please help ..Its urgent

Regards
Govind R.

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #231649 is a reply to message #231547]

Thu, 28 May 2009 06:47

Juan

Messages: 29
Registered: July 2009

Junior Member

Hi govind,

Why dont you try to create manually the Message Dialog using :
MessageDialog.openXXX(PlatformUI.getWorkbench().getActiveWor kbenchWindow().getShell(),
"Message's title", "Message's text");

You should add it when it is needed, for example in method canExecute()
of your delete command. I'm using it and works fine.

Best Regards.

govind escribió:
> Hi All,,
>
> I want to show the Custom Message when the user tries to delete any figure.
>
> I checked the ItemSemanticEditPolicy class of editpart where we can call
> shouldProceed(req) which show a message dailog..
>
> I want to show the custom message as the name of the figure is used
> somewhere else .
> But the messages are final.
>
> Please help ..Its urgent
>
>
> Regards
> Govind R.
>
>
>
>
>

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #231685 is a reply to message #231649]

Thu, 28 May 2009 10:46

govind Ra

Messages: 95
Registered: July 2009

Member

Hi Juan..

Thanks.. but i dont have any XXXDeleteCommand Class generated as
XXXCreateCommands.

its Using DeleteCommand of gmf runtime ..

I tried to call my custom message dialog in XXXBaseItemSemanticEditPolicy
Class getSemanticCommand method when

if (shouldProceed) {
myCustomDialog();// this returns boolean.
if (completedRequest instanceof DestroyRequest) {
TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost())
.getEditingDomain();
Command deleteViewCommand = new ICommandProxy(
new DeleteCommand(editingDomain, (View) getHost() .getModel()));
semanticCommand = semanticCommand == null ? deleteViewCommand
: semanticCommand.chain(deleteViewCommand);
}
return semanticCommand;
}

But when click on the editpart it show the dialog.. i want the dialog to
come when i click on the menu item DeleteFromModel when i right click on
editpart.

Regards
Govind R

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #231693 is a reply to message #231685]

Thu, 28 May 2009 12:20

Peter Lang

Messages: 153
Registered: July 2009

Senior Member

You could try to return your own DeleteCommand in
XxxBaseItemSemanticEditPolicy, overriding doExecuteWithResult.

Here's an example that I tried - just to give an idea, not what the final
result should look like ;-)

Command deleteViewCommand = new ICommandProxy(
new DeleteCommand(editingDomain, (View) getHost().getModel()) {
// --------------
@Override
protected CommandResult doExecuteWithResult(
IProgressMonitor progressMonitor,
IAdaptable info)
throws ExecutionException {
if(MessageDialog.openQuestion(Display.getDefault().getActive Shell(),
"Sure?", "Do you really want to delete?")) {
return super.doExecuteWithResult(progressMonitor, info);
}
return CommandResult.newCancelledCommandResult();
}
// --------------
});
semanticCommand = semanticCommand == null ? deleteViewCommand
: semanticCommand.chain(deleteViewCommand);

Regards, Peter

govind wrote:

> Hi Juan..

> Thanks.. but i dont have any XXXDeleteCommand Class generated as
> XXXCreateCommands.

> its Using DeleteCommand of gmf runtime ..

> I tried to call my custom message dialog in XXXBaseItemSemanticEditPolicy
> Class getSemanticCommand method when

> if (shouldProceed) {
> myCustomDialog();// this returns boolean.
> if (completedRequest instanceof DestroyRequest) {
> TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost())
> .getEditingDomain();
> Command deleteViewCommand = new ICommandProxy(
> new DeleteCommand(editingDomain, (View) getHost() .getModel()));
> semanticCommand = semanticCommand == null ? deleteViewCommand
> : semanticCommand.chain(deleteViewCommand);
> }
> return semanticCommand;
> }

> But when click on the editpart it show the dialog.. i want the dialog to
> come when i click on the menu item DeleteFromModel when i right click on
> editpart.

> Regards
> Govind R

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #232141 is a reply to message #231693]

Wed, 03 June 2009 10:57

govind Ra

Messages: 95
Registered: July 2009

Member

Hi Peter

Thanks a lot..

Regards
Govind R.

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #232565 is a reply to message #231693]

Fri, 05 June 2009 10:22

govind Ra

Messages: 95
Registered: July 2009

Member

Hi Peter..

There is a small problem with that solution.

Actually i have figure A which can figure B..

Like i can drag a B in A.

So when i deleting the A the message dialog appears twice one while
deleting A and one while Deleting B..

Any Solution to this..

Regards
Govind R

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #232896 is a reply to message #232565]

Mon, 08 June 2009 10:45

govind Ra

Messages: 95
Registered: July 2009

Member

Hi Peter

I still didn't get.

Regards
Govind R

Report message to a moderator

Re: shouldProceed Changing the Text of Message Dialog [message #232934 is a reply to message #232565]

Mon, 08 June 2009 12:36

Peter Lang

Messages: 153
Registered: July 2009

Senior Member

Sorry, not sure about that.

Assuming that you are not using GMF 2.2 at the moment, you might try to
switch, if this is an option. Object deletion seems to work slightly
different now and changing generated
XxxBaseItemSemanticEditPolicy.addDeleteViewCommand seems to do the trick
for me.

You might also try to throw an ExecutionException which is declared for
doExecuteWithResult. Not sure if this works as expected though.

Regards, Peter

Report message to a moderator