public interface Containment
parent and child relationships.  These may be set up
 explicitly via APIs such as Canvas.addChild(), or may be automatically set up by composite components. For example TabSets will  nest their panes inside an appropriate sub component.
 Developers using the autoChildren subsystem may also use the autoParent attribute to specify a target
 parent. 
 In addition to parent-child relationships, Smart GWT components support  master-peer relationships. When a canvas is set to be the
 peer of some other canvas, the master and peer will share the same parent canvas (reparenting a master will automatically reparent
 any peers). Peers will move, resize and redraw with their masters and commonly use snapTo positioning
Canvas.addChild(com.smartgwt.client.widgets.Canvas), 
Canvas.removePeer(com.smartgwt.client.widgets.Canvas), 
Canvas.depeer(), 
Canvas.deparent(), 
Canvas.removeChild(com.smartgwt.client.widgets.Canvas), 
Canvas.addPeer(com.smartgwt.client.widgets.Canvas), 
Canvas.getParentCanvas(), 
Canvas.getMasterCanvas(), 
com.smartgwt.client.widgets.Canvas#getParentElements, 
Canvas.contains(com.smartgwt.client.widgets.Canvas), 
Canvas.getParentElement(), 
Canvas.getParentCanvas(), 
Canvas.getTopElement(), 
Canvas.getMasterElement(), 
Canvas.getChildren(), 
Canvas.getPeers()