| Using GEF without draw2d [message #198476] |
Wed, 12 October 2005 08:31  |
Eclipse User |
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Originally posted by: eric.gly.net
I want to create an RCP app using the opengl plugin. Some requirements
for the app include having a palette of tools, that allow the user to
add geometric primitives to the opengl canvas, as well as perform other
edit operations. I like the GEF framework MVC architecture, and think it
could be usefull. All the examples and tutorials of GEF assume Draw2d,
and use GraphicalViewer, etc. So these are the questions:
1) Can i use GEF, and create my own GEF derived classes from abstract
classes higher in the GEF class hierarchy?
2) How would the event system work with a opengl canvas and GEF?
2) Which classes would I need to implement?
3) Is this worth the effort or should I just use basic SWT/JFaces design?
4) Is there any tutorial on this, or do I need to study the design of
draw2D based classes?
-eric
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| Re: Using GEF without draw2d [message #198612 is a reply to message #198476] |
Wed, 12 October 2005 15:37  |
| Eclipse User |
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Originally posted by: none.us.ibm.com
> 1) Can i use GEF, and create my own GEF derived classes from abstract
> classes higher in the GEF class hierarchy?
Sure. We have done this already using the native tree, which has no relation
to Draw2d.
> 2) How would the event system work with a opengl canvas and GEF?
Unfortunately I think everything is typed as SWT mouse and keyboard events.
But this should be what you get from a GL canvas.
> 2) Which classes would I need to implement?
Extend AbstractEditPart I guess. What are the "visuals" going to be??
> 3) Is this worth the effort or should I just use basic SWT/JFaces design?
JFace viewers are read-only by design.
> 4) Is there any tutorial on this, or do I need to study the design of
> draw2D based classes?
You probably need some composable structure such as a scene graph to
represent the 3d visuals.
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