net.frapu.code.visualization

Class SelectionHandler

java.lang.Object

net.frapu.code.visualization.SelectionHandler

public class SelectionHandler
extends java.lang.Object

This class implements an Handler for multiple selections in the ProcessEditor. Nodes can be added, removed, or the list can be cleared. The update of the selection state of the objects is handled by this class.

Constructor Summary

Constructors

Constructor and Description
SelectionHandler(ProcessEditor editor) Creates a new selection handler for a certain ProcessModel.

Method Summary

Modifier and Type	Method and Description
void	addSelectedObject(ProcessObject n) Adds a node to the selection.
void	clearSelection() Clears the selection.
boolean	contains(ProcessObject o) Returns if a certain ProcessObject is contained.
ProcessNode	getLastSelectedNode() convenience method that returns the lastSelection as a ProcessNode (if it is one) or null otherwise
ProcessObject	getLastSelection() Returns the last selected node (the last one that has been added to the selection).
java.util.List<ProcessObject>	getSelection() Returns the current selection.
int	getSelectionSize() Returns the size of the selection.
boolean	isEmpty() Checks whether the selection is empty.
void	moveSelection(int offsetX, int offsetY) Moves the ProcessNodes of the selection according to the given offsets.
boolean	removeSelectedObject(ProcessObject n) Removes a node from the selection.
void	toggleSelectedObject(ProcessObject n) Adds the ProcessObject if it is currently not contained in the selection and removes it otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectionHandler

public SelectionHandler(ProcessEditor editor)

Creates a new selection handler for a certain ProcessModel.

Parameters:

m -

Method Detail

addSelectedObject

public void addSelectedObject(ProcessObject n)

Adds a node to the selection.

Parameters:

n - The ProcessObject n is only added if it is not already contained.

toggleSelectedObject

public void toggleSelectedObject(ProcessObject n)

Adds the ProcessObject if it is currently not contained in the selection and removes it otherwise.

Parameters:

n -

removeSelectedObject

public boolean removeSelectedObject(ProcessObject n)

Removes a node from the selection.

Parameters:

n -

clearSelection

public void clearSelection()

Clears the selection.

getLastSelection

public ProcessObject getLastSelection()

Returns the last selected node (the last one that has been added to the selection).

Returns:

getLastSelectedNode

public ProcessNode getLastSelectedNode()

convenience method that returns the lastSelection as a ProcessNode (if it is one) or null otherwise

Returns:

getSelection

public java.util.List<ProcessObject> getSelection()

Returns the current selection.

Returns:

contains

public boolean contains(ProcessObject o)

Returns if a certain ProcessObject is contained.

Parameters:

o -

Returns:

isEmpty

public boolean isEmpty()

Checks whether the selection is empty.

Returns:

getSelectionSize

public int getSelectionSize()

Returns the size of the selection.

Returns:

moveSelection

public void moveSelection(int offsetX,
                          int offsetY)

Moves the ProcessNodes of the selection according to the given offsets. Takes care of Cluster containments.