com.mxgraph.view
Class mxLayoutManager

java.lang.Object
  com.mxgraph.util.mxEventSource
      com.mxgraph.view.mxLayoutManager

public class mxLayoutManager
extends mxEventSource

Implements a layout manager that updates the layout for a given transaction. The following example installs an automatic tree layout in a graph: new mxLayoutManager(graph) { mxCompactTreeLayout layout = new mxCompactTreeLayout(graph); public mxIGraphLayout getLayout(Object parent) { if (graph.getModel().getChildCount(parent) > 0) { return layout; } return null; } }; This class fires the following event: mxEvent.LAYOUT_CELLS fires between begin- and endUpdate after all cells have been layouted in layoutCells. The cells property contains all cells that have been passed to layoutCells.

Nested Class Summary

Nested classes/interfaces inherited from class com.mxgraph.util.mxEventSource

mxEventSource.mxIEventListener

Field Summary

protected boolean	bubbling Optional string that specifies the attributename to be passed to mxCell.is to check if the rule applies to a cell.
protected boolean	enabled Optional string that specifies the value of the attribute to be passed to mxCell.is to check if the rule applies to a cell.
protected mxGraph	graph Defines the type of the source or target terminal.
protected mxEventSource.mxIEventListener	moveHandler
protected mxEventSource.mxIEventListener	undoHandler

Fields inherited from class com.mxgraph.util.mxEventSource

eventListeners, eventsEnabled, eventSource

Constructor Summary

mxLayoutManager(mxGraph graph)

Method Summary

protected void	beforeUndo(mxUndoableEdit edit)
protected void	cellsMoved(Object[] cells, Point location)
void	destroy()
protected void	executeLayout(mxIGraphLayout layout, Object parent)
protected Collection<Object>	getCellsForChange(mxUndoableEdit.mxUndoableChange change)
protected Collection<Object>	getCellsForChanges(List<mxUndoableEdit.mxUndoableChange> changes)
mxGraph	getGraph()
protected mxIGraphLayout	getLayout(Object parent)
boolean	isBubbling()
boolean	isEnabled()
protected void	layoutCells(Object[] cells)
void	setBubbling(boolean value)
void	setEnabled(boolean value)
void	setGraph(mxGraph value)

Methods inherited from class com.mxgraph.util.mxEventSource

addListener, fireEvent, fireEvent, getEventSource, isEventsEnabled, removeListener, removeListener, setEventsEnabled, setEventSource

Methods inherited from class java.lang.Object

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

Field Detail

graph

protected mxGraph graph

Defines the type of the source or target terminal. The type is a string passed to mxCell.is to check if the rule applies to a cell.

enabled

protected boolean enabled

Optional string that specifies the value of the attribute to be passed to mxCell.is to check if the rule applies to a cell. Default is true.

bubbling

protected boolean bubbling

Optional string that specifies the attributename to be passed to mxCell.is to check if the rule applies to a cell. Default is true.

undoHandler

protected mxEventSource.mxIEventListener undoHandler

moveHandler

protected mxEventSource.mxIEventListener moveHandler

Constructor Detail

mxLayoutManager

public mxLayoutManager(mxGraph graph)

Method Detail

isEnabled

public boolean isEnabled()

Returns:

the enabled

setEnabled

public void setEnabled(boolean value)

Parameters:

value - the enabled to set

isBubbling

public boolean isBubbling()

Returns:

the bubbling

setBubbling

public void setBubbling(boolean value)

Parameters:

value - the bubbling to set

getGraph

public mxGraph getGraph()

Returns:

the graph

setGraph

public void setGraph(mxGraph value)

Parameters:

value - the graph to set

getLayout

protected mxIGraphLayout getLayout(Object parent)

cellsMoved

protected void cellsMoved(Object[] cells,
                          Point location)

beforeUndo

protected void beforeUndo(mxUndoableEdit edit)

getCellsForChanges

protected Collection<Object> getCellsForChanges(List<mxUndoableEdit.mxUndoableChange> changes)

getCellsForChange

protected Collection<Object> getCellsForChange(mxUndoableEdit.mxUndoableChange change)

layoutCells

protected void layoutCells(Object[] cells)

executeLayout

protected void executeLayout(mxIGraphLayout layout,
                             Object parent)

destroy

public void destroy()