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export editor diagram to a jpeg file without physically opening the editor [message #237273]

Fri, 27 July 2007 20:25

Shannon Wei

Messages: 10
Registered: July 2009

Junior Member

Hi,

I'm looking for a way to export gef editor diagram to a jpeg file without
physically opening the editor in eclipse and gef 3.22.

The code worked prior to eclipse and gef 3.2.
1. Initiate a multipage editor.
2. Editor creates a part control.
3. Add graphicalEditor to the multipage editor page.
4. Get graphicalViewer of graphicalEditor .
5. Get printable layer from graphicalViewer.
6. Convert printable layer figure to jpeg.
7. Dispose multipage editor.

It doesn't work in eclipse and gef 3.22. After exporting diagram to jpeg and
then changing eclipse perspective, the workspace is messed up. It seems
editor instance is still hanging around.

Help is greatly appreciated.

Shannon
....

final IEditorPart editor =
(IEditorPart)WorkbenchPlugin.createExtension(desc.getConfigu rationElement(),
"class");

final EditorSite site = new EditorSite(null, editor, page, desc);

try {

....

editor.init(site, source);

editor.createPartControl(window.getShell()); // editor is a
MultiPageEditorPart, add org.eclipse.gef.ui.parts. GrahpicalEditor to the
editor page

....

}catch(...){

}

Object graphicalViewer = editor.getAdapter(GraphicalViewer.class);

if (graphicalViewer instanceof GraphicalViewer){

this.viewer = (GraphicalViewer)graphicalViewer;

IFigure printableLayer = null;

LayerManager lm = (LayerManager)
((GraphicalViewer)graphicalViewer).getEditPartRegistry().get (LayerManager.ID);

IFigure printLayer = lm.getLayer(LayerConstants.PRINTABLE_LAYERS);

// convert printLayer figure to jpeg.

editor.dispose();

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Re: export editor diagram to a jpeg file without physically opening the editor [message #237278 is a reply to message #237273]

Sat, 28 July 2007 21:12

Alex Boyko

Messages: 200
Registered: July 2009

Senior Member

Hi,

You need to draw the diagram off-screen. Take a look at DiagramGenerator
class and its subclasses in GMF project - it's already done there.

Cheers,
Alex

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