Home » Modeling » EMF » Calling a function outside the ItemProvider
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| Re: Calling a function outside the ItemProvider [message #427944 is a reply to message #427942] |
Fri, 06 March 2009 12:45   |
 Matthias
Messages: 19
Registered: July 2009 |
Junior Member |
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Hi,
ok you mean I have to create the createAddCommand in the ItemProvider?
@Override
protected Command createAddCommand(EditingDomain domain, EObject owner,
EStructuralFeature feature, Collection<?> collection, int index) {
// TODO Auto-generated method stub
return super.createAddCommand(domain, owner, feature, collection, index);
}
Ed Merks wrote:
> Matthias,
> Comments below.
> Matthias wrote:
>> Hi,
>>
>> I have a small question about the call of a function.
>>
>> When I call for example the setName() function from a object which was
>> given with the tree selection within the TestActionBarContributor
>> class, the name will changed within the model and when I debug, the
>> notification will be called, but the save button will not be activated.
>>
>> For example:
>>
>> TreeSelection selectT = (TreeSelection)viewer.getSelection();
>> EObject eoParent = ((EObject)
>> selectT.getPaths()[0].getLastSegment)).eContainer();
>> msc.project_package.XYZ isParent = (XYZ) eoParent;
>> isParent.setName("Hallo");
>>
>> Does anyone know a solution for this problem?
> Use a command. You must execute commands on the command stack to affect
> the dirty state of the editor and of course so you can have undo
> support. If you have a bunch of complex logic that you can't express
> as a command or would involve a lot of duplicate to express also as a
> command, you could use a ChangeCommand (which uses a ChangeRecorder to
> record changes based on notifications about changes).
>>
>> Thanks a lot
>>
>> Matthias
>>
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| Re: Calling a function outside the ItemProvider [message #427945 is a reply to message #427944] |
Fri, 06 March 2009 12:56 |
Ed Merks
Messages: 33133
Registered: July 2009 |
Senior Member |
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|
Matthias,
Likely you want
domain.getCommandStack().execute(SetCommand.create(domain, isParent,
ProjectPackage.Literals.XYZ_NAME, "Hallo")).
Matthias wrote:
> Hi,
>
> ok you mean I have to create the createAddCommand in the ItemProvider?
>
> @Override
> protected Command createAddCommand(EditingDomain domain, EObject owner,
> EStructuralFeature feature, Collection<?> collection, int index) {
> // TODO Auto-generated method stub
> return super.createAddCommand(domain, owner, feature, collection, index);
> }
>
>
> Ed Merks wrote:
>
>> Matthias,
>
>> Comments below.
>
>
>> Matthias wrote:
>>> Hi,
>>>
>>> I have a small question about the call of a function.
>>>
>>> When I call for example the setName() function from a object which
>>> was given with the tree selection within the
>>> TestActionBarContributor class, the name will changed within the
>>> model and when I debug, the notification will be called, but the
>>> save button will not be activated.
>>>
>>> For example:
>>>
>>> TreeSelection selectT = (TreeSelection)viewer.getSelection();
>>> EObject eoParent = ((EObject)
>>> selectT.getPaths()[0].getLastSegment)).eContainer();
>>> msc.project_package.XYZ isParent = (XYZ) eoParent;
>>> isParent.setName("Hallo");
>>>
>>> Does anyone know a solution for this problem?
>> Use a command. You must execute commands on the command stack to
>> affect the dirty state of the editor and of course so you can have
>> undo support. If you have a bunch of complex logic that you can't
>> express as a command or would involve a lot of duplicate to express
>> also as a command, you could use a ChangeCommand (which uses a
>> ChangeRecorder to record changes based on notifications about changes).
>>>
>>> Thanks a lot
>>>
>>> Matthias
>>>
>
>
Ed Merks
Professional Support: https://www.macromodeling.com/
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| Re: Calling a function outside the ItemProvider [message #427948 is a reply to message #427945] |
Fri, 06 March 2009 13:22 |
Matthias
Messages: 19
Registered: July 2009 |
Junior Member |
|
|
Ok,
thats it.
But is it possible to disable the undo function for this command?
Thanks a lot
Matthias
Ed Merks wrote:
> Matthias,
> Likely you want
> domain.getCommandStack().execute(SetCommand.create(domain, isParent,
> ProjectPackage.Literals.XYZ_NAME, "Hallo")).
> Matthias wrote:
>> Hi,
>>
>> ok you mean I have to create the createAddCommand in the ItemProvider?
>>
>> @Override
>> protected Command createAddCommand(EditingDomain domain, EObject owner,
>> EStructuralFeature feature, Collection<?> collection, int index) {
>> // TODO Auto-generated method stub
>> return super.createAddCommand(domain, owner, feature, collection, index);
>> }
>>
>>
>> Ed Merks wrote:
>>
>>> Matthias,
>>
>>> Comments below.
>>
>>
>>> Matthias wrote:
>>>> Hi,
>>>>
>>>> I have a small question about the call of a function.
>>>>
>>>> When I call for example the setName() function from a object which
>>>> was given with the tree selection within the
>>>> TestActionBarContributor class, the name will changed within the
>>>> model and when I debug, the notification will be called, but the
>>>> save button will not be activated.
>>>>
>>>> For example:
>>>>
>>>> TreeSelection selectT = (TreeSelection)viewer.getSelection();
>>>> EObject eoParent = ((EObject)
>>>> selectT.getPaths()[0].getLastSegment)).eContainer();
>>>> msc.project_package.XYZ isParent = (XYZ) eoParent;
>>>> isParent.setName("Hallo");
>>>>
>>>> Does anyone know a solution for this problem?
>>> Use a command. You must execute commands on the command stack to
>>> affect the dirty state of the editor and of course so you can have
>>> undo support. If you have a bunch of complex logic that you can't
>>> express as a command or would involve a lot of duplicate to express
>>> also as a command, you could use a ChangeCommand (which uses a
>>> ChangeRecorder to record changes based on notifications about changes).
>>>>
>>>> Thanks a lot
>>>>
>>>> Matthias
>>>>
>>
>>
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| Re: Calling a function outside the ItemProvider [message #427952 is a reply to message #427948] |
Fri, 06 March 2009 13:52 |
Ed Merks
Messages: 33133
Registered: July 2009 |
Senior Member |
|
|
Matthias,
It's possible to make commands return false for canUndo, but that would
kill your entire undo stack. Why would you want to do that?
Matthias wrote:
> Ok,
>
> thats it.
> But is it possible to disable the undo function for this command?
>
> Thanks a lot
> Matthias
>
> Ed Merks wrote:
>
>> Matthias,
>
>> Likely you want
>> domain.getCommandStack().execute(SetCommand.create(domain, isParent,
>> ProjectPackage.Literals.XYZ_NAME, "Hallo")).
>
>> Matthias wrote:
>>> Hi,
>>>
>>> ok you mean I have to create the createAddCommand in the ItemProvider?
>>>
>>> @Override
>>> protected Command createAddCommand(EditingDomain domain, EObject owner,
>>> EStructuralFeature feature, Collection<?> collection, int index) {
>>> // TODO Auto-generated method stub
>>> return super.createAddCommand(domain, owner, feature, collection,
>>> index);
>>> }
>>>
>>>
>>> Ed Merks wrote:
>>>
>>>> Matthias,
>>>
>>>> Comments below.
>>>
>>>
>>>> Matthias wrote:
>>>>> Hi,
>>>>>
>>>>> I have a small question about the call of a function.
>>>>>
>>>>> When I call for example the setName() function from a object which
>>>>> was given with the tree selection within the
>>>>> TestActionBarContributor class, the name will changed within the
>>>>> model and when I debug, the notification will be called, but the
>>>>> save button will not be activated.
>>>>>
>>>>> For example:
>>>>>
>>>>> TreeSelection selectT = (TreeSelection)viewer.getSelection();
>>>>> EObject eoParent = ((EObject)
>>>>> selectT.getPaths()[0].getLastSegment)).eContainer();
>>>>> msc.project_package.XYZ isParent = (XYZ) eoParent;
>>>>> isParent.setName("Hallo");
>>>>>
>>>>> Does anyone know a solution for this problem?
>>>> Use a command. You must execute commands on the command stack to
>>>> affect the dirty state of the editor and of course so you can have
>>>> undo support. If you have a bunch of complex logic that you can't
>>>> express as a command or would involve a lot of duplicate to express
>>>> also as a command, you could use a ChangeCommand (which uses a
>>>> ChangeRecorder to record changes based on notifications about
>>>> changes).
>>>>>
>>>>> Thanks a lot
>>>>>
>>>>> Matthias
>>>>>
>>>
>>>
>
>
Ed Merks
Professional Support: https://www.macromodeling.com/
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