Eclipse Community Forums: GEF » Problem with GEF Directed Graph Tutorial

Help

Home

Home » Eclipse Projects » GEF » Problem with GEF Directed Graph Tutorial

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

Problem with GEF Directed Graph Tutorial [message #249516]

Wed, 08 July 2009 23:15

Andrea Mazzario

Messages: 10
Registered: July 2009

Junior Member

I am implementing a simple GEF editor based on the Directed Graph
tutorial, and I have a problem when adding nodes. The code in the
GraphXYLayoutEditPolicy that creates the NodeCreateCommand simply gets the
location from the request and passes it to the command:

NodeCreateCommand result = new NodeCreateCommand();
result.setLocation(request.getLocation());

This works fine unless the window in which we attempt to create the
command has been scrolled: It seems that the NodeCreateCommand expects an
absolute location, while the request.getLocation() seems to return the
relative position of the mouse.
Can anybody tell me how to fix the GraphXYLayoutEditPolicy in the tutorial
so it will work correctly also if the window has been scrolled?

Thanks in advance
Andrea

Report message to a moderator

Re: Problem with GEF Directed Graph Tutorial [message #249547 is a reply to message #249516]

Thu, 09 July 2009 16:55

Alex Boyko

Messages: 200
Registered: July 2009

Senior Member

Hi,

Before you set the location on the reult try doing the following:

Point location = req.getLocation();
((GraphicalEditPart)getHist()).getFigure.translateToRelative (location);
result.setLocation(location);

Hope this helps.

Cheers,
Alex

Report message to a moderator

Re: Problem with GEF Directed Graph Tutorial [message #249705 is a reply to message #249547]

Wed, 22 July 2009 23:14

Andrea Mazzario

Messages: 10
Registered: July 2009

Junior Member

Alex,
I apologize for my late reply, I was pulled into an emergency ;-(
Anyway, I was now able to get back to it, I tried to follow your
suggestion and it works great.
Thank you !!!!
Andrea

Report message to a moderator

Previous Topic:	GEF Printing error
Next Topic:	How to create Hyperlink label or Image in GEF(Draw @d)

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 19 02:15:22 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter