com.mxgraph.swing.handler
Class mxMovePreview

java.lang.Object
  com.mxgraph.util.mxEventSource
      com.mxgraph.swing.handler.mxMovePreview

public class mxMovePreview
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

protected boolean	clonePreview Specifies if the preview should use clones of the original shapes.
protected boolean	contextPreview Specifies if connected, unselected edges should be included in the preview.
protected mxGraphComponent	graphComponent
protected boolean	hideSelectionHandler Specifies if the selection cells handler should be hidden while the preview is visible.
protected Rectangle	initialPlaceholder
protected mxRectangle	lastDirty
protected Object[]	movingCells
protected Rectangle	placeholder
protected boolean	placeholderPreview Specifies if the placeholder rectangle should be used for all previews.
protected mxCellStatePreview	preview
protected mxCellState[]	previewStates
protected mxCellState	startState
protected int	threshold Maximum number of cells to preview individually.

Fields inherited from class com.mxgraph.util.mxEventSource

eventListeners, eventsEnabled, eventSource

Constructor Summary

mxMovePreview(mxGraphComponent graphComponent)
Constructs a new rubberband selection for the given graph component.

Method Summary

mxCellStatePreview	createCellStatePreview()
Object[]	getCells(mxCellState initialState)
Object[]	getMovingCells() FIXME: Cells should be assigned outside of getPreviewStates
protected mxRectangle	getPlaceholderBounds(mxCellState startState)
protected mxCellState[]	getPreviewStates() Returns the states that are affected by the move operation.
int	getThreshold()
boolean	isActive()
protected boolean	isCellOpaque(Object cell)
boolean	isClonePreview()
boolean	isContextPreview()
boolean	isHideSelectionHandler()
boolean	isPlaceholderPreview()
void	paint(Graphics g)
protected void	repaint(mxRectangle dirty)
protected void	reset()
void	setClonePreview(boolean value)
void	setContextPreview(boolean value)
void	setHideSelectionHandler(boolean value)
void	setPlaceholderPreview(boolean value)
void	setThreshold(int value)
void	start(MouseEvent e, mxCellState state) Sets the translation of the preview.
Object[]	stop(boolean commit, MouseEvent e, double dx, double dy, boolean clone, Object target)
void	update(MouseEvent e, double dx, double dy, boolean clone) Sets the translation of the preview.

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

threshold

protected int threshold

Maximum number of cells to preview individually. Default is 200.

placeholderPreview

protected boolean placeholderPreview

Specifies if the placeholder rectangle should be used for all previews. Default is false. This overrides all other preview settings if true.

clonePreview

protected boolean clonePreview

Specifies if the preview should use clones of the original shapes. Default is true.

contextPreview

protected boolean contextPreview

Specifies if connected, unselected edges should be included in the preview. Default is true. This should not be used if cloning is enabled.

hideSelectionHandler

protected boolean hideSelectionHandler

Specifies if the selection cells handler should be hidden while the preview is visible. Default is false.

startState

protected transient mxCellState startState

previewStates

protected transient mxCellState[] previewStates

movingCells

protected transient Object[] movingCells

initialPlaceholder

protected transient Rectangle initialPlaceholder

placeholder

protected transient Rectangle placeholder

lastDirty

protected transient mxRectangle lastDirty

preview

protected transient mxCellStatePreview preview

Constructor Detail

mxMovePreview

public mxMovePreview(mxGraphComponent graphComponent)

Constructs a new rubberband selection for the given graph component.

Parameters:

graphComponent - Component that contains the rubberband.

Method Detail

getThreshold

public int getThreshold()

setThreshold

public void setThreshold(int value)

isPlaceholderPreview

public boolean isPlaceholderPreview()

setPlaceholderPreview

public void setPlaceholderPreview(boolean value)

isClonePreview

public boolean isClonePreview()

setClonePreview

public void setClonePreview(boolean value)

isContextPreview

public boolean isContextPreview()

setContextPreview

public void setContextPreview(boolean value)

isHideSelectionHandler

public boolean isHideSelectionHandler()

setHideSelectionHandler

public void setHideSelectionHandler(boolean value)

isActive

public boolean isActive()

getMovingCells

public Object[] getMovingCells()

FIXME: Cells should be assigned outside of getPreviewStates

getCells

public Object[] getCells(mxCellState initialState)

getPreviewStates

protected mxCellState[] getPreviewStates()

Returns the states that are affected by the move operation.

isCellOpaque

protected boolean isCellOpaque(Object cell)

start

public void start(MouseEvent e,
                  mxCellState state)

Sets the translation of the preview.

getPlaceholderBounds

protected mxRectangle getPlaceholderBounds(mxCellState startState)

createCellStatePreview

public mxCellStatePreview createCellStatePreview()

update

public void update(MouseEvent e,
                   double dx,
                   double dy,
                   boolean clone)

Sets the translation of the preview.

repaint

protected void repaint(mxRectangle dirty)

reset

protected void reset()

stop

public Object[] stop(boolean commit,
                     MouseEvent e,
                     double dx,
                     double dy,
                     boolean clone,
                     Object target)

paint

public void paint(Graphics g)