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Eclipse Programming Tips

How to hide the sash form separator from form?

SashForm sashForm = new SashForm(parent, SWT.NONE);
getToolkit().adapt(sashForm);

How to change drag and drop icon?

http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet257.java

How to load an editor input into an EMF object

Resource resource = SDOUtil.createResourceSet().createResource(EditUIUtil.getURI(getEditorInput()));
resource.load(null);
Object content = resource.getContents().get(0);

How to hide SWT widget using GridLayout

Set data height or width to 0 (-1 is reserved as default size) and run layout()

this.setLayout(new GridLayout());
title = new Label(this, SWT.NONE);
title.setText("Title");
titleData = new GridData(SWT.CENTER, SWT.CENTER, true, false);
title.setLayoutData(titleData);
composite = new Composite(this, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
render(composite);
		
b = new Button(this, SWT.CHECK);
b.setText("hide");
b.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
b.setSelection(false);
b.addListener(SWT.Selection, new Listener() {
	public void handleEvent(Event e) {
		if(b.getSelection()) {
			titleData.heightHint = 0;
		} else {
			titleData.heightHint = -1;
		}
		layout();
	}
});