Thanks all.
I have it working now.
Matt
On 23 Oct 2012, at 20:07, Sascha Zelzer wrote:
Hi,
On 10/23/2012 04:11 PM, Miklos Espak wrote:
Create a plugin, without any view.
Create a class that register listeners to the datastorage events.
Instantiate it from the plugin activator. That's the key point.
Add the "eager" option to the manifest file to make sure it is loaded before
other plugins. I don't remember the syntax.
That is all correct. You could also do without the "eager" property. You would
have to make sure that every plug-in who wants to access the special data node
properties has a dependency on your new plug-in (maybe transitively). On
startup, your plug-in would then add the properties to existing nodes and
listen to any data storage changes.
You can have preference page as usual.
It's a bit tricky to get a reference to the data storage from the plugin
activator. I have an example, I can give it to you next week.
Hmm, shouldn't be that tricky. Out of my head:
void start(ctkPluginContext* context)
{
mitk::IDataStorageService* dss = NULL;
ctkServiceReference sr =
context->getServiceReference<mitk::IDataStorageService>();
if (sr)
{
dss = context->getService<mitk::IDataStorageService>(sr);
}
if (dss)
{
doSomethingWithDataStorage(dss->GetDataStorage ...);
}
}
- Sascha
Miklos
On 23 Oct 2012 04:36, "Müller, Michael"
<[email protected]<mailto:[email protected]>>
wrote:
Hi Matt,
the DataNodeAdded event is essentially an event coming from the DataStorage and
then proxified through QmitkAbstractView. I.e. directly listen to the
DataStorage (code is given in QmitkAbstractView) will make you independent of
your view visibility state.
However, a view that should never show up on the screen is rather the wrong
way. You can e.g. contribute preference pages and access the DataStorage
service without creating a view class.
Hope that helps
Michael
-----Ursprüngliche Nachricht-----
Von: Clarkson, Matt [mailto:[email protected]<mailto:[email protected]>]
Gesendet: Dienstag, 23. Oktober 2012 09:06
An: mitk-users
Betreff: [mitk-users] Application level response to NodeAdded events
Hi there,
within a view, derived from QmitkAbstractView it is easy to respond to
DataStorage NodeAdded events.
But what is the best way to provide application level functionality,
independent of whether a view is visible on screen.
It seems like I want a subclass derived from QmitkAbstractView, but I never
want to see it on screen. It should just run in the background. I also need a
corresponding preference page to control some preferences.
Should I add this to my application plugin as this is derived from
berry::AbstractUICTKPlugin, or is there another way?
My requirements are:
1. Whenever any image node is added, set some default properties.
2. These default properties have a few preferences to select the correct
calculation of these properties.
3. It is independent of any Qt View.
Thanks
Matt
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