Bug 295981 [Forms] FormImages & FormFonts are not disposed correctly
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/FormText.java
gc.dispose();
	}
	private void ensureVisible(IFocusSelectable segment) {
		if (mouseFocus) {
			mouseFocus = false;
			return;
		}
		if (segment == null)
			return;
		Rectangle bounds = segment.getBounds();
		ScrolledComposite scomp = FormUtil.getScrolledComposite(this);
		if (scomp == null)
			return;
		Point origin = FormUtil.getControlLocation(scomp, this);
		origin.x += bounds.x;
		origin.y += bounds.y;
		FormUtil.ensureVisible(scomp, origin, new Point(bounds.width,
				bounds.height));
	}
	/**
	 * Overrides the method by fully trusting the layout manager (computed width
	 * or height may be larger than the provider width or height hints). Callers
	 * should be prepared that the computed width is larger than the provided
	 * wHint.
	 * 
	 * @see org.eclipse.swt.widgets.Composite#computeSize(int, int, boolean)
	 */
	public Point computeSize(int wHint, int hHint, boolean changed) {
		checkWidget();
		Point size;