Eclipse Community Forums: GEF

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Tue, 15 January 2008 06:15

Eclipse User

Originally posted by: shady_86.sify.com

how can a diamond (relation in an E-R Diagram) be created in the GEF framework, since there is no predefined function for this shape in draw2d.

Re: diamond [message #240772 is a reply to message #240746]

Wed, 16 January 2008 00:28

Eclipse User

Originally posted by: shady_86.sify.com

i tried it in this way

private IFigure createFigureForModel() {
return new Diamond();
}
=============================================

public class Diamond extends Figure {
public Diamond(Rectangle rect) {
setBounds(getBounds());
}
protected void paintFigure(Graphics g) {
Rectangle r = getParent().getBounds().getCopy();
setBounds(r);
PointList points = new PointList();
points.addPoint(new Point(r.x + r.width / 2, r.y));
points.addPoint(new Point(r.x + r.width, r.y + r.height / 2));
points.addPoint(new Point(r.x + r.width / 2, r.y + r.height));
points.addPoint(new Point(r.x, r.y + r.height / 2));
g.fillPolygon(points);
g.drawPolygon(points);
}
}

=====================================

but the figure generated is working improperly, i mean the drawing board is jumping and if i try to resize the figure the figure also starts jumping,

please tell me the correct way to do it..,

Re: diamond [message #240787 is a reply to message #240772]

Wed, 16 January 2008 23:28

Eclipse User

Originally posted by: shady_86.sify.com

no issues i have solved the problem.

i was using figures of draw2d which does not actually support the gef traits,

so i tried using shape of gef and i got my solution..,

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