com.mxgraph.swing.handler

Class mxConnectPreview

java.lang.Object

com.mxgraph.util.mxEventSource

com.mxgraph.swing.handler.mxConnectPreview

public class mxConnectPreview
extends mxEventSource

Connection handler creates new connections between cells. This control is used to display the connector icon, while the preview is used to draw the line.

Nested Class Summary

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

mxEventSource.mxIEventListener

Field Summary

Fields

Modifier and Type	Field and Description
protected mxGraphComponent	graphComponent
protected mxCellState	previewState
protected mxCellState	sourceState
protected mxPoint	startPoint

Fields inherited from class com.mxgraph.util.mxEventSource

eventListeners, eventsEnabled, eventSource

Constructor Summary

Constructors

Constructor and Description
mxConnectPreview(mxGraphComponent graphComponent)

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	createCell(mxCellState startState, String style) Creates a new instance of mxShape for previewing the edge.
protected Rectangle	getDirtyRect()
protected Rectangle	getDirtyRect(mxRectangle dirty)
mxCellState	getPreviewState()
mxCellState	getSourceState()
mxPoint	getStartPoint()
boolean	isActive()
void	paint(Graphics g)
protected void	paintPreview(mxGraphics2DCanvas canvas) Draws the preview using the graphics canvas.
void	revalidate(mxCellState state)
void	start(MouseEvent e, mxCellState startState, String style) Updates the style of the edge preview from the incoming edge
Object	stop(boolean commit)
Object	stop(boolean commit, MouseEvent e)
protected mxPoint	transformScreenPoint(double x, double y)
void	update(MouseEvent e, mxCellState targetState, double x, double y)

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

graphComponent

protected mxGraphComponent graphComponent

previewState

protected mxCellState previewState

sourceState

protected mxCellState sourceState

startPoint

protected mxPoint startPoint

Constructor Detail

mxConnectPreview

public mxConnectPreview(mxGraphComponent graphComponent)

Parameters:

graphComponent -

Method Detail

createCell

protected Object createCell(mxCellState startState,
                String style)

Creates a new instance of mxShape for previewing the edge.

isActive

public boolean isActive()

getSourceState

public mxCellState getSourceState()

getPreviewState

public mxCellState getPreviewState()

getStartPoint

public mxPoint getStartPoint()

start

public void start(MouseEvent e,
         mxCellState startState,
         String style)

Updates the style of the edge preview from the incoming edge

update

public void update(MouseEvent e,
          mxCellState targetState,
          double x,
          double y)

getDirtyRect

protected Rectangle getDirtyRect()

getDirtyRect

protected Rectangle getDirtyRect(mxRectangle dirty)

transformScreenPoint

protected mxPoint transformScreenPoint(double x,
                           double y)

revalidate

public void revalidate(mxCellState state)

paint

public void paint(Graphics g)

paintPreview

protected void paintPreview(mxGraphics2DCanvas canvas)

Draws the preview using the graphics canvas.

stop

public Object stop(boolean commit)

stop

public Object stop(boolean commit,
          MouseEvent e)