Bug 316792 Toolbar images should be center aligned
Currently if one of the children controls on the trim bar causes the trim bar height to grow, the other controls on the bar are aligned at the top. They should be center aligned.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/TrimBarLayout.java
int totalSpace = horizontal ? wHint : hHint;
		int curMinor = 0;
		int maxMinor = 0;
		int spaceLeft = totalSpace;
		Control[] kids = composite.getChildren();
		for (Control ctrl : kids) {
			if (isSpacer(ctrl))
				continue;
			ctrl.pack(true);
			Point ctrlSize = ctrl.getSize();
			int major = horizontal ? ctrlSize.x : ctrlSize.y;
			int minor = horizontal ? ctrlSize.y : ctrlSize.x;
			if (major <= spaceLeft) {
				if (minor > maxMinor)
					maxMinor = minor;
				spaceLeft -= major;
			} else {
				curMinor += maxMinor;
				maxMinor = minor;
				spaceLeft = totalSpace - major;
			}
		}
		curMinor += maxMinor;
		if (curMinor == 0)
			curMinor = 1; 
							
		return horizontal ? new Point(wHint, curMinor) : new Point(curMinor,
				hHint);
	}
	protected void layout(Composite composite, boolean flushCache) {