mxGraphModel

mxGraphModel	Extends mxEventSource to implement a graph model.
Events
mxEvent.CHANGE	Fires when an undoable edit is dispatched.
mxEvent.NOTIFY	Same as mxEvent.CHANGE, this event can be used for classes that need to implement a sync mechanism between this model and, say, a remote model.
mxEvent.EXECUTE	Fires between begin- and endUpdate and after an atomic change was executed in the model.
mxEvent.EXECUTED	Fires between START_EDIT and END_EDIT after an atomic change was executed.
mxEvent.BEGIN_UPDATE	Fires after the updateLevel was incremented in beginUpdate.
mxEvent.START_EDIT	Fires after the updateLevel was changed from 0 to 1.
mxEvent.END_UPDATE	Fires after the updateLevel was decreased in endUpdate but before any notification or change dispatching.
mxEvent.END_EDIT	Fires after the updateLevel was changed from 1 to 0.
mxEvent.BEFORE_UNDO	Fires before the change is dispatched after the update level has reached 0 in endUpdate.
mxEvent.UNDO	Fires after the change was dispatched in endUpdate.
Functions
mxGraphModel	Constructs a new graph model.
Variables
root	Holds the root cell, which in turn contains the cells that represent the layers of the diagram as child cells.
cells	Maps from Ids to cells.
maintainEdgeParent	Specifies if edges should automatically be moved into the nearest common ancestor of their terminals.
ignoreRelativeEdgeParent	Specifies if relative edge parents should be ignored for finding the nearest common ancestors of an edge’s terminals.
createIds	Specifies if the model should automatically create Ids for new cells.
prefix	Defines the prefix of new Ids.
postfix	Defines the postfix of new Ids.
nextId	Specifies the next Id to be created.
currentEdit	Holds the changes for the current transaction.
updateLevel	Counter for the depth of nested transactions.
endingUpdate	True if the program flow is currently inside endUpdate.
Functions
clear	Sets a new root using createRoot.
isCreateIds	Returns createIds.
setCreateIds	Sets createIds.
createRoot	Creates a new root cell with a default layer (child 0).
getCell	Returns the mxCell for the specified Id or null if no cell can be found for the given Id.
filterCells	Returns the cells from the given array where the given filter function returns true.
getDescendants	Returns all descendants of the given cell and the cell itself in an array.
filterDescendants	Visits all cells recursively and applies the specified filter function to each cell.
getRoot	Returns the root of the model or the topmost parent of the given cell.
setRoot	Sets the root of the model using mxRootChange and adds the change to the current transaction.
rootChanged	Inner callback to change the root of the model and update the internal datastructures, such as cells and nextId.
isRoot	Returns true if the given cell is the root of the model and a non-null value.
isLayer	Returns true if isRoot returns true for the parent of the given cell.
isAncestor	Returns true if the given parent is an ancestor of the given child.
contains	Returns true if the model contains the given mxCell.
getParent	Returns the parent of the given cell.
add	Adds the specified child to the parent at the given index using mxChildChange and adds the change to the current transaction.
cellAdded	Inner callback to update cells when a cell has been added.
createId	Hook method to create an Id for the specified cell.
updateEdgeParents	Updates the parent for all edges that are connected to cell or one of its descendants using updateEdgeParent.
updateEdgeParent	Inner callback to update the parent of the specified mxCell to the nearest-common-ancestor of its two terminals.
getOrigin	Returns the absolute, accumulated origin for the children inside the given parent as an mxPoint.
getNearestCommonAncestor	Returns the nearest common ancestor for the specified cells.
remove	Removes the specified cell from the model using mxChildChange and adds the change to the current transaction.
cellRemoved	Inner callback to update cells when a cell has been removed.
parentForCellChanged	Inner callback to update the parent of a cell using mxCell.insert on the parent and return the previous parent.
getChildCount	Returns the number of children in the given cell.
getChildAt	Returns the child of the given mxCell at the given index.
getChildren	Returns all children of the given mxCell as an array of mxCells.
getChildVertices	Returns the child vertices of the given parent.
getChildEdges	Returns the child edges of the given parent.
getChildCells	Returns the children of the given cell that are vertices and/or edges depending on the arguments.
getTerminal	Returns the source or target mxCell of the given edge depending on the value of the boolean parameter.
setTerminal	Sets the source or target terminal of the given mxCell using mxTerminalChange and adds the change to the current transaction.
setTerminals	Sets the source and target mxCell of the given mxCell in a single transaction using setTerminal for each end of the edge.
terminalForCellChanged	Inner helper function to update the terminal of the edge using mxCell.insertEdge and return the previous terminal.
getEdgeCount	Returns the number of distinct edges connected to the given cell.
getEdgeAt	Returns the edge of cell at the given index.
getDirectedEdgeCount	Returns the number of incoming or outgoing edges, ignoring the given edge.
getConnections	Returns all edges of the given cell without loops.
getIncomingEdges	Returns the incoming edges of the given cell without loops.
getOutgoingEdges	Returns the outgoing edges of the given cell without loops.
getEdges	Returns all distinct edges connected to this cell as a new array of mxCells.
getEdgesBetween	Returns all edges between the given source and target pair.
getOpposites	Returns all opposite vertices wrt terminal for the given edges, only returning sources and/or targets as specified.
getTopmostCells	Returns the topmost cells of the hierarchy in an array that contains no descendants for each mxCell that it contains.
isVertex	Returns true if the given cell is a vertex.
isEdge	Returns true if the given cell is an edge.
isConnectable	Returns true if the given mxCell is connectable.
getValue	Returns the user object of the given mxCell using mxCell.getValue.
setValue	Sets the user object of then given mxCell using mxValueChange and adds the change to the current transaction.
valueForCellChanged	Inner callback to update the user object of the given mxCell using mxCell.valueChanged and return the previous value, that is, the return value of mxCell.valueChanged.
getGeometry	Returns the mxGeometry of the given mxCell.
setGeometry	Sets the mxGeometry of the given mxCell.
geometryForCellChanged	Inner callback to update the mxGeometry of the given mxCell using mxCell.setGeometry and return the previous mxGeometry.
getStyle	Returns the style of the given mxCell.
setStyle	Sets the style of the given mxCell using mxStyleChange and adds the change to the current transaction.
styleForCellChanged	Inner callback to update the style of the given mxCell using mxCell.setStyle and return the previous style.
isCollapsed	Returns true if the given mxCell is collapsed.
setCollapsed	Sets the collapsed state of the given mxCell using mxCollapseChange and adds the change to the current transaction.
collapsedStateForCellChanged	Inner callback to update the collapsed state of the given mxCell using mxCell.setCollapsed and return the previous collapsed state.
isVisible	Returns true if the given mxCell is visible.
setVisible	Sets the visible state of the given mxCell using mxVisibleChange and adds the change to the current transaction.
visibleStateForCellChanged	Inner callback to update the visible state of the given mxCell using mxCell.setCollapsed and return the previous visible state.
execute	Executes the given edit and fires events if required.
beginUpdate	Increments the updateLevel by one.
endUpdate	Decrements the updateLevel by one and fires an <undo> event if the updateLevel reaches 0.
createUndoableEdit	Creates a new mxUndoableEdit that implements the notify function to fire a <change> and <notify> event through the mxUndoableEdit’s source.
mergeChildren	Merges the children of the given cell into the given target cell inside this model.
mergeChildren	Clones the children of the source cell into the given target cell in this model and adds an entry to the mapping that maps from the source cell to the target cell with the same id or the clone of the source cell that was inserted into this model.
getParents	Returns an array that represents the set (no duplicates) of all parents for the given array of cells.
cloneCell	Returns a deep clone of the given mxCell (including the children) which is created using cloneCells.
cloneCells	Returns an array of clones for the given array of mxCells.
cloneCellImpl	Inner helper method for cloning cells recursively.
cellCloned	Hook for cloning the cell.
restoreClone	Inner helper method for restoring the connections in a network of cloned cells.
mxRootChange	Action to change the root in a model.
Functions
mxRootChange	Constructs a change of the root in the specified model.
execute	Carries out a change of the root using mxGraphModel.rootChanged.
mxChildChange	Action to add or remove a child in a model.
Functions
mxChildChange	Constructs a change of a child in the specified model.
execute	Changes the parent of <child> using mxGraphModel.parentForCellChanged and removes or restores the cell’s connections.
disconnect	Disconnects the given cell recursively from its terminals and stores the previous terminal in the cell’s terminals.
mxTerminalChange	Action to change a terminal in a model.
Functions
mxTerminalChange	Constructs a change of a terminal in the specified model.
execute	Changes the terminal of <cell> to <previous> using mxGraphModel.terminalForCellChanged.
mxValueChange	Action to change a user object in a model.
Functions
mxValueChange	Constructs a change of a user object in the specified model.
execute	Changes the value of <cell> to <previous> using mxGraphModel.valueForCellChanged.
mxStyleChange	Action to change a cell’s style in a model.
Functions
mxStyleChange	Constructs a change of a style in the specified model.
execute	Changes the style of <cell> to <previous> using mxGraphModel.styleForCellChanged.
mxGeometryChange	Action to change a cell’s geometry in a model.
Functions
mxGeometryChange	Constructs a change of a geometry in the specified model.
execute	Changes the geometry of <cell> ro <previous> using mxGraphModel.geometryForCellChanged.
mxCollapseChange	Action to change a cell’s collapsed state in a model.
Functions
mxCollapseChange	Constructs a change of a collapsed state in the specified model.
execute	Changes the collapsed state of <cell> to <previous> using mxGraphModel.collapsedStateForCellChanged.
mxVisibleChange	Action to change a cell’s visible state in a model.
Functions
mxVisibleChange	Constructs a change of a visible state in the specified model.
execute	Changes the visible state of <cell> to <previous> using mxGraphModel.visibleStateForCellChanged.
mxCellAttributeChange	Action to change the attribute of a cell’s user object.
Functions
mxCellAttributeChange	Constructs a change of a attribute of the DOM node stored as the value of the given mxCell.
execute	Changes the attribute of the cell’s user object by using mxCell.setAttribute.