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java.lang.Objectjavax.swing.undo.UndoableEditSupport
com.jgraph.graph.DefaultGraphModel
A simple implementation of a graph model.
Nested Class Summary | |
static class |
DefaultGraphModel.EmptyIterator
|
class |
DefaultGraphModel.GraphModelEdit
An implementation of GraphModelChange that can be added to the model event. |
class |
DefaultGraphModel.GraphModelLayerEdit
An implementation of GraphViewChange. |
Field Summary | |
protected boolean |
asksAllowsChildren
Indicates whether isLeaf is based on a node's allowsChildren value. |
protected boolean |
attributeStore
Indicates whether this models consumes the UI's attribute changes. |
protected java.util.Iterator |
emptyIterator
Default instance of an empty iterator. |
protected javax.swing.event.EventListenerList |
listenerList
The list of listeners that listen to the model. |
protected java.util.List |
roots
Set that contains all root cells of this model. |
Fields inherited from class javax.swing.undo.UndoableEditSupport |
compoundEdit, listeners, realSource, updateLevel |
Constructor Summary | |
DefaultGraphModel()
Constructs a model that is not an attribute store. |
|
DefaultGraphModel(boolean attributeStore)
Constructs a model who's isAttributeStore returns the specified value. |
Method Summary | |
boolean |
acceptsSource(java.lang.Object edge,
java.lang.Object port)
Returns true if port is a valid source
for edge . |
boolean |
acceptsTarget(java.lang.Object edge,
java.lang.Object port)
Returns true if port is a valid target
for edge . |
void |
addGraphModelListener(GraphModelListener l)
Adds a listener for the GraphModelEvent posted after the graph changes. |
protected void |
connect(java.lang.Object edge,
java.lang.Object port,
boolean isSource,
boolean remove)
Connects or disconnects the edge and port in this model based on remove . |
boolean |
contains(java.lang.Object node)
Returns true if node or one of its
ancestors is in the model. |
protected DefaultGraphModel.GraphModelEdit |
createCellEdit(ConnectionSet cs,
java.util.Map propertyMap,
ParentMap pm,
javax.swing.undo.UndoableEdit[] edits)
Returns an edit that represents a change. |
protected DefaultGraphModel.GraphModelEdit |
createEdit(java.lang.Object[] inserted,
java.lang.Object[] removed,
java.util.Map attributes,
java.util.Map properties,
ConnectionSet cs,
ParentMap pm)
|
protected DefaultGraphModel.GraphModelEdit |
createInsertEdit(java.lang.Object[] cells,
ConnectionSet cs,
ParentMap pm,
java.util.Map propertyMap,
java.util.Map attributeMap)
Returns an edit that represents an insert. |
protected DefaultGraphModel.GraphModelLayerEdit |
createLayerEdit(java.lang.Object[] cells,
int layer)
|
protected DefaultGraphModel.GraphModelEdit |
createRemoveEdit(java.lang.Object[] cells)
Returns an edit that represents a remove. |
java.util.Iterator |
edges(java.lang.Object port)
Returns an iterator of the edges connected to port . |
void |
edit(ConnectionSet cs,
java.util.Map propertyMap,
ParentMap pm,
javax.swing.undo.UndoableEdit[] edits)
Applies the propertyMap and the connection changes to
the model. |
protected void |
fireGraphChanged(java.lang.Object source,
GraphModelEvent.GraphModelChange edit)
|
java.util.Map |
getAttributes(java.lang.Object node)
Returns a Map that represents the properties for
the specified cell. |
java.lang.Object |
getChild(java.lang.Object parent,
int index)
Returns the child of parent at index index in the parent's child array. |
int |
getChildCount(java.lang.Object parent)
Returns the number of children of parent. |
static java.util.Set |
getDescendants(GraphModel model,
java.lang.Object[] cells)
Flattens the given array of root cells by adding the roots and their descandants. |
static java.util.Set |
getEdges(GraphModel model,
java.lang.Object[] cells)
Return the set of edges that are connected to the specified cells. |
GraphModelListener[] |
getGraphModelListeners()
Return an array of all GraphModelListeners that were added to this model. |
int |
getIndexOfChild(java.lang.Object parent,
java.lang.Object child)
Returns the index of child in parent. |
int |
getIndexOfRoot(java.lang.Object root)
Returns the index of root in the model. |
java.lang.Object |
getParent(java.lang.Object child)
Returns the parent of child in the model. |
java.lang.Object |
getRootAt(int index)
Returns the root at index index in the model. |
int |
getRootCount()
Returns the number of roots in the model. |
static java.lang.Object[] |
getRoots(GraphModel model)
Returns the roots of the specified model as an array. |
java.lang.Object |
getSource(java.lang.Object edge)
Returns the source of edge . |
java.lang.Object |
getTarget(java.lang.Object edge)
Returns the target of edge . |
protected void |
handleConnection(ConnectionSet.Connection c)
Inserts the specified connection into the model. |
protected ConnectionSet |
handleConnectionSet(ConnectionSet cs)
Applies connectionSet to the model. |
protected java.lang.Object[] |
handleInsert(java.lang.Object[] cells)
Inserts cells into the model. |
protected ParentMap |
handleParentMap(ParentMap parentMap)
Applies cells to the model. |
protected java.util.Map |
handlePropertyMap(java.util.Map propertyMap)
Applies propertyMap to the model. |
protected java.lang.Object[] |
handleRemove(java.lang.Object[] cells)
Removes cells from the model. |
void |
insert(java.lang.Object[] roots,
ConnectionSet cs,
ParentMap pm,
java.util.Map attributeMap)
Inserts the cells and connections into the model,
and passes attributeMap to the views. |
boolean |
isAttributeStore()
Returns true if the model stores all attributes. |
boolean |
isLeaf(java.lang.Object node)
Returns whether the specified node is a leaf node. |
boolean |
isOrdered()
Returns true if the model order should be used. |
void |
remove(java.lang.Object[] roots)
Removes cells from the model. |
void |
removeGraphModelListener(GraphModelListener l)
Removes a listener previously added with addGraphModelListener(). |
void |
toBack(java.lang.Object[] cells)
Sends cells to back. |
void |
toFront(java.lang.Object[] cells)
Brings cells to front. |
Methods inherited from class javax.swing.undo.UndoableEditSupport |
_postEdit, addUndoableEditListener, beginUpdate, createCompoundEdit, endUpdate, getUndoableEditListeners, getUpdateLevel, postEdit, removeUndoableEditListener, toString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.jgraph.graph.GraphModel |
addUndoableEditListener, removeUndoableEditListener |
Field Detail |
protected transient javax.swing.event.EventListenerList listenerList
protected transient java.util.Iterator emptyIterator
protected java.util.List roots
protected boolean asksAllowsChildren
protected boolean attributeStore
Constructor Detail |
public DefaultGraphModel()
public DefaultGraphModel(boolean attributeStore)
Method Detail |
public int getRootCount()
getRootCount
in interface GraphModel
public java.lang.Object getRootAt(int index)
getRootAt
in interface GraphModel
public int getIndexOfRoot(java.lang.Object root)
root
in the model.
If root is null
, returns -1.
getIndexOfRoot
in interface GraphModel
null
public boolean contains(java.lang.Object node)
true
if node
or one of its
ancestors is in the model.
contains
in interface GraphModel
true
if node
is in the modelpublic boolean isAttributeStore()
true
if the model stores all attributes.
Otherwise, the view attributes and model properties are stored
in separate places, allowing a cell to have multiple attribute
sets among different views ("view-dependent" attributes).
isAttributeStore
in interface GraphModel
true
if the model handles attributes.public java.util.Map getAttributes(java.lang.Object node)
Map
that represents the properties for
the specified cell. This properties have precedence over each
view's attributes, regardless of isAttributeStore.
getAttributes
in interface GraphModel
node
as a Map
public java.lang.Object getSource(java.lang.Object edge)
edge
. edge must be an object
previously obtained from this data source.
getSource
in interface GraphModel
Object
that represents the source of edgepublic java.lang.Object getTarget(java.lang.Object edge)
edge
. edge must be an object
previously obtained from this data source.
getTarget
in interface GraphModel
Object
that represents the target of edgepublic boolean acceptsSource(java.lang.Object edge, java.lang.Object port)
true
if port
is a valid source
for edge
. edge and port must be
objects previously obtained from this data source.
acceptsSource
in interface GraphModel
true
if port
is a valid source
for edge
.public boolean acceptsTarget(java.lang.Object edge, java.lang.Object port)
true
if port
is a valid target
for edge
. edge and port must be
objects previously obtained from this data source.
acceptsTarget
in interface GraphModel
true
if port
is a valid target
for edge
.public java.util.Iterator edges(java.lang.Object port)
port
.
port must be a object previously obtained from
this data source. This method never returns null.
edges
in interface GraphModel
port
- a port in the graph, obtained from this data source
Iterator
that represents the connected edgespublic java.lang.Object getParent(java.lang.Object child)
getParent
in interface GraphModel
child
- a node in the graph, obtained from this data source
public int getIndexOfChild(java.lang.Object parent, java.lang.Object child)
null
, returns -1.
getIndexOfChild
in interface GraphModel
parent
- a note in the tree, obtained from this data sourcechild
- the node we are interested in
null
public java.lang.Object getChild(java.lang.Object parent, int index)
getChild
in interface GraphModel
parent
- a node in the tree, obtained from this data source
public int getChildCount(java.lang.Object parent)
getChildCount
in interface GraphModel
parent
- a node in the tree, obtained from this data source
public boolean isLeaf(java.lang.Object node)
isLeaf
in interface GraphModel
node
- the node to check
public void insert(java.lang.Object[] roots, ConnectionSet cs, ParentMap pm, java.util.Map attributeMap)
cells
and connections into the model,
and passes attributeMap
to the views. If the
model is an attribute store, the attributeMap
is absorbed by the model.
Notifies the model- and undo listeners of the change.
insert
in interface GraphModel
public void remove(java.lang.Object[] roots)
cells
from the model. If removeChildren
is true
, the children are also removed.
Notifies the model- and undo listeners of the change.
remove
in interface GraphModel
public void edit(ConnectionSet cs, java.util.Map propertyMap, ParentMap pm, javax.swing.undo.UndoableEdit[] edits)
propertyMap
and the connection changes to
the model. The initial edits
that triggered the call
are considered to be part of this transaction.
Notifies the model- and undo listeners of the change.
Note: If only edits
is non-null, the
edits are directly passed to the UndoableEditListeners.
edit
in interface GraphModel
public void toBack(java.lang.Object[] cells)
cells
to back.
toBack
in interface GraphModel
public void toFront(java.lang.Object[] cells)
cells
to front.
toFront
in interface GraphModel
protected DefaultGraphModel.GraphModelLayerEdit createLayerEdit(java.lang.Object[] cells, int layer)
public boolean isOrdered()
true
if the model order should be used.
Typically, this returns the value of isAttributeStore.
isOrdered
in interface GraphModel
protected DefaultGraphModel.GraphModelEdit createInsertEdit(java.lang.Object[] cells, ConnectionSet cs, ParentMap pm, java.util.Map propertyMap, java.util.Map attributeMap)
protected DefaultGraphModel.GraphModelEdit createRemoveEdit(java.lang.Object[] cells)
protected DefaultGraphModel.GraphModelEdit createCellEdit(ConnectionSet cs, java.util.Map propertyMap, ParentMap pm, javax.swing.undo.UndoableEdit[] edits)
protected DefaultGraphModel.GraphModelEdit createEdit(java.lang.Object[] inserted, java.lang.Object[] removed, java.util.Map attributes, java.util.Map properties, ConnectionSet cs, ParentMap pm)
protected java.lang.Object[] handleInsert(java.lang.Object[] cells)
cells
into the model. Returns
the cells that were inserted (including descendants).
protected java.lang.Object[] handleRemove(java.lang.Object[] cells)
cells
from the model. Returns
the cells that were removed as roots.
protected ParentMap handleParentMap(ParentMap parentMap)
cells
to the model. Returns
a parent map that may be used to undo this change.
protected java.util.Map handlePropertyMap(java.util.Map propertyMap)
propertyMap
to the model. Returns
a property map that may be used to undo this change.
protected ConnectionSet handleConnectionSet(ConnectionSet cs)
connectionSet
to the model. Returns
a connection set that may be used to undo this change.
protected void handleConnection(ConnectionSet.Connection c)
protected void connect(java.lang.Object edge, java.lang.Object port, boolean isSource, boolean remove)
remove
. Subclassers should override
this to update connectivity datastructures.
public void addGraphModelListener(GraphModelListener l)
addGraphModelListener
in interface GraphModel
l
- the listener to addremoveGraphModelListener(com.jgraph.event.GraphModelListener)
public void removeGraphModelListener(GraphModelListener l)
removeGraphModelListener
in interface GraphModel
l
- the listener to removeaddGraphModelListener(com.jgraph.event.GraphModelListener)
protected void fireGraphChanged(java.lang.Object source, GraphModelEvent.GraphModelChange edit)
public GraphModelListener[] getGraphModelListeners()
public static java.lang.Object[] getRoots(GraphModel model)
public static java.util.Set getEdges(GraphModel model, java.lang.Object[] cells)
public static java.util.Set getDescendants(GraphModel model, java.lang.Object[] cells)
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