Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.device.swt/src/org/eclipse/birt/chart/device/swt/SwtTextMetrics.java
tl.setWidth( (int) maxSize );
			List nal = new ArrayList( );
			for ( Iterator itr = al.iterator( ); itr.hasNext( ); )
			{
				String ns = (String) itr.next( );
				tl.setText( ns );
				int[] offsets = tl.getLineOffsets( );
				String ss;
				for ( i = 1; i < offsets.length; i++ )
				{
					ss = ns.substring( offsets[i - 1], offsets[i] );
					nal.add( ss );
				}
			}
			tl.dispose( );
			al = nal;
		}
		final int n = al.size( );
		if ( n == 1 || n == 0 )
		{
			return null;
		}
		final String[] sa = new String[n];
		for ( i = 0; i < al.size( ); i++ )
		{
			sa[i] = (String) al.get( i );
		}
		return sa;
	}
}