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Is Partial Mouse selection possible in GEF? [message #1433839]

Mon, 29 September 2014 10:00

Abhishek SA

Messages: 7
Registered: September 2014

Junior Member

I am attaching 2 images for explaining my situation. I have a diagram which I want to select using mouse. Image 1 shows the default behaviour, which selects both Category 1 & 2 along with its children(choice 1, choice 2, value 1, value 2 respectively). But, I want to select only the outline diagrams(namely, class, category 1 , category 2) using mouse selection.(As it looks in Image 2). From the code perspective, I want to fetch only the outline diagrams selected(As in Image 2)

I am using getSelection() method of ISelection org.eclipse.gef.ui.actions.SelectionAction.getSelection() to get access to selected elements from diagram. But, it returns all elements (namely category 1+choice1+choice2).

Is there any other method which can help me out?

Attachment: Image 1.jpg
(Size: 22.75KB, Downloaded 168 times)
Attachment: Image 2.jpg
(Size: 20.19KB, Downloaded 176 times)

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Re: Is Partial Mouse selection possible in GEF? [message #1433948 is a reply to message #1433839]

Mon, 29 September 2014 12:56

Alexander Nyssen

Messages: 244
Registered: July 2009
Location: Lünen

Senior Member

You could make the non-outline edit parts unelectable (see EditPart#isSelectable()) or forward the selection to its parent (see SelectionEditPolicy#getTargetEditParts()).

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Re: Is Partial Mouse selection possible in GEF? [message #1434523 is a reply to message #1433839]

Tue, 30 September 2014 07:42

Laurent Redor

Messages: 300
Registered: July 2009

Senior Member

Hi,

Le 29/09/2014 14:50, Abhishek SA a écrit :
> I am attaching 2 images for explaining my situation. I have a diagram which I want to select using mouse. Image 1 shows the default behaviour, which selects both Category 1 & 2 along with its children(choice 1, choice 2, value 1, value 2 respectively). But, I want to select only the outline diagrams(namely, class, category 1 , category 2) using mouse selection.(As it looks in Image 2). From the code perspective, I want to fetch only the outline diagrams selected(As in Image 2)
>
> I am using getSelection() method of ISelection org.eclipse.gef.ui.actions.SelectionAction.getSelection() to get access to selected elements from diagram. But, it returns all elements (namely category 1+choice1+choice2).
>
> Is there any other method which can help me out?
>

You can use
org.eclipse.gef.tools.ToolUtilities.getSelectionWithoutDependants(List)

Best regards,

--
Laurent Redor

Laurent Redor - Obeo

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