Package de.saar.chorus.domgraph.layout.treelayout

Class DomGraphDrawingCursor

java.lang.Object

de.saar.chorus.domgraph.layout.treelayout.DomGraphNodeCursor

de.saar.chorus.domgraph.layout.treelayout.DomGraphDrawingCursor

All Implemented Interfaces:

NodeCursorInterface

public class DomGraphDrawingCursor
extends DomGraphNodeCursor

A class to determine the coordinates of a node relative to the graph root. This converts the positions (relative to the direct parent) computed by a DomGraphLayoutCursor into positions relative to the root. The computed coordinates are stored in maps of the given SolvedFormLayout and processed there. A subclass of DomGraphNodeCursor.

Author:

Marco Kuhlmann, Michaela Regneri

Field Summary

Fields inherited from class de.saar.chorus.domgraph.layout.treelayout.DomGraphNodeCursor

validEdges

Constructor Summary

Constructors

Constructor	Description
DomGraphDrawingCursor(String theNode, FragmentLayoutAlgorithm theLayout, DomGraph aGraph, Set<String> theNodes)	Creates a new DomGraphDrawingCursor

Method Summary

Modifier and Type	Method	Description
void	moveDownwards()	Move to the current node's most left child and compute the new coordinates (for the child node).
void	moveSidewards()	Move to the current node's right sibling and compute the new coordinates (for the sibling).
void	moveUpwards()	Move to the current node's parent and compute the new coordinates (for the parent node).
void	processCurrentNode()	Computes the positions for the current node and stores it in a map of the given layout algorithm.

Methods inherited from class de.saar.chorus.domgraph.layout.treelayout.DomGraphNodeCursor

getCurrentNode, mayMoveDownwards, mayMoveSidewards, mayMoveUpwards

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DomGraphDrawingCursor

public DomGraphDrawingCursor(String theNode,
 FragmentLayoutAlgorithm theLayout,
 DomGraph aGraph,
 Set<String> theNodes)

Creates a new DomGraphDrawingCursor

Parameters:

theNode - the graph root

theLayout - the layout algorithm to store the coordinates

aGraph - the graph to layout

theNodes - nodes the layout shall arrange

Method Details

moveUpwards

public void moveUpwards()

Move to the current node's parent and compute the new coordinates (for the parent node).

Specified by:

moveUpwards in interface NodeCursorInterface

Overrides:

moveUpwards in class DomGraphNodeCursor

moveDownwards

public void moveDownwards()

Move to the current node's most left child and compute the new coordinates (for the child node).

Specified by:

moveDownwards in interface NodeCursorInterface

Overrides:

moveDownwards in class DomGraphNodeCursor

moveSidewards

public void moveSidewards()

Move to the current node's right sibling and compute the new coordinates (for the sibling).

Specified by:

moveSidewards in interface NodeCursorInterface

Overrides:

moveSidewards in class DomGraphNodeCursor

See Also:

• JDomGraph.getRightSibling(DefaultGraphCell node)

processCurrentNode

public void processCurrentNode()

Computes the positions for the current node and stores it in a map of the given layout algorithm.

Specified by:

processCurrentNode in interface NodeCursorInterface

Specified by:

processCurrentNode in class DomGraphNodeCursor