com.mxgraph.swing.view
Class mxCellStatePreview

java.lang.Object
  com.mxgraph.swing.view.mxCellStatePreview

public class mxCellStatePreview
extends Object

Represents the current state of a cell in a given graph view.

Field Summary

protected List<mxCellState>	cellStates
protected boolean	cloned Specifies if cell states should be cloned or changed in-place.
protected int	count
protected Map<mxCellState,mxPoint>	deltas
protected mxGraphComponent	graphComponent
protected float	opacity

Constructor Summary

mxCellStatePreview(mxGraphComponent graphComponent, boolean cloned)
Constructs a new state preview.

Method Summary

void	addEdges(mxCellState state)
int	getCount()
Map<mxCellState,mxPoint>	getDeltas()
float	getOpacity()
protected float	getOpacityForCell(Object cell)
boolean	isCloned()
boolean	isEmpty()
mxPoint	moveState(mxCellState state, double dx, double dy)
mxPoint	moveState(mxCellState state, double dx, double dy, boolean add, boolean includeEdges)
void	paint(Graphics g)
protected void	paintPreview(mxGraphics2DCanvas canvas) Draws the preview using the graphics canvas.
protected void	paintPreviewState(mxGraphics2DCanvas canvas, mxCellState state) Draws the preview using the graphics canvas.
void	restore(List<mxCellState> snapshot)
void	restoreState(mxCellState state, mxCellState from)
protected mxRectangle	revalidateState(mxCellState parentState, mxCellState state, double dx, double dy)
void	setCloned(boolean value)
void	setOpacity(float value)
mxRectangle	show() Returns a dirty rectangle to be repainted in mxGraphControl.
List<mxCellState>	snapshot(mxCellState state)
protected void	translateState(mxCellState parentState, mxCellState state, double dx, double dy)

Methods inherited from class java.lang.Object

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

Field Detail

deltas

protected Map<mxCellState,mxPoint> deltas

count

protected int count

graphComponent

protected mxGraphComponent graphComponent

cloned

protected boolean cloned

Specifies if cell states should be cloned or changed in-place.

opacity

protected float opacity

cellStates

protected List<mxCellState> cellStates

Constructor Detail

mxCellStatePreview

public mxCellStatePreview(mxGraphComponent graphComponent,
                          boolean cloned)

Constructs a new state preview. The paint handler to invoke the paint method must be installed elsewhere.

Method Detail

isCloned

public boolean isCloned()

setCloned

public void setCloned(boolean value)

isEmpty

public boolean isEmpty()

getCount

public int getCount()

getDeltas

public Map<mxCellState,mxPoint> getDeltas()

setOpacity

public void setOpacity(float value)

getOpacity

public float getOpacity()

moveState

public mxPoint moveState(mxCellState state,
                         double dx,
                         double dy)

moveState

public mxPoint moveState(mxCellState state,
                         double dx,
                         double dy,
                         boolean add,
                         boolean includeEdges)

show

public mxRectangle show()

Returns a dirty rectangle to be repainted in mxGraphControl.

restore

public void restore(List<mxCellState> snapshot)

restoreState

public void restoreState(mxCellState state,
                         mxCellState from)

snapshot

public List<mxCellState> snapshot(mxCellState state)

translateState

protected void translateState(mxCellState parentState,
                              mxCellState state,
                              double dx,
                              double dy)

revalidateState

protected mxRectangle revalidateState(mxCellState parentState,
                                      mxCellState state,
                                      double dx,
                                      double dy)

addEdges

public void addEdges(mxCellState state)

paint

public void paint(Graphics g)

getOpacityForCell

protected float getOpacityForCell(Object cell)

paintPreview

protected void paintPreview(mxGraphics2DCanvas canvas)

Draws the preview using the graphics canvas.

paintPreviewState

protected void paintPreviewState(mxGraphics2DCanvas canvas,
                                 mxCellState state)

Draws the preview using the graphics canvas.