Bug 113104 [hovering] Consider adapting AbstractInformationControl to new PopupDialog
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/AbstractInformationControl.java
data.heightHint= Dialog.convertHeightInCharsToPixels(fontMetrics, 1);
		data.horizontalAlignment= GridData.FILL;
		data.verticalAlignment= GridData.CENTER;
		fFilterText.setLayoutData(data);
		fFilterText.addKeyListener(new KeyListener() {
			public void keyPressed(KeyEvent e) {
				if (e.keyCode == 0x0D) 
					gotoSelectedElement();
				if (e.keyCode == SWT.ARROW_DOWN)
					fTreeViewer.getTree().setFocus();
				if (e.keyCode == SWT.ARROW_UP)
					fTreeViewer.getTree().setFocus();
				if (e.character == 0x1B) 
					dispose();
			}
			public void keyReleased(KeyEvent e) {
				
			}
		});
		return fFilterText;
	}
	protected void createHorizontalSeparator(Composite parent) {
		Label separator= new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL | SWT.LINE_DOT);
		separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	}
	private void createViewMenu(Composite toolbar) {
		fToolBar= new ToolBar(toolbar, SWT.FLAT);
		ToolItem viewMenuButton= new ToolItem(fToolBar, SWT.PUSH, 0);
		GridData data= new GridData();
		data.horizontalAlignment= GridData.END;