Bug 126288 Show default header and footer heights
The default header and footer heights are 0.5 in. These values should be displayed in the Master page's General properties. Currently, these properties are blank, which is misleading. Also, if I specify 0 for header or footer height, the master page layout should not show the header/footer area.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/layout/MasterPageLayout.java
bounds.y = height + y - bounds.height;
			}
			figure.setBounds( bounds );
		}
		Rectangle rect = new Rectangle( 0, 0, parentBounds.x
				+ parentBounds.width
				+ result.rightSpace, parentBounds.y
				+ parentBounds.height
				+ result.bottomSpace );
		setViewProperty( rect, parentBounds );
	}
	private Rectangle convertRectangle( Rectangle bounds, Rectangle clientArea )
	{
		Rectangle b = bounds.getCopy( );
		b.width = clientArea.width;
		if ( b.x == 0 )
		{
			b.x = clientArea.getTopLeft( ).x;
			b.y = clientArea.getTopLeft( ).y;
		}
		else
		{
			b.x = clientArea.getBottomLeft( ).x;
			b.y = clientArea.getBottomLeft( ).y
					- ( ( b.height < 0 ) ? MasterPageLayout.MINIMUM_HEIGHT
							: b.height );
		}
		return b;
	}
}