com.mxgraph.view
Class mxCellState

java.lang.Object
  com.mxgraph.util.mxPoint
      com.mxgraph.util.mxRectangle
          com.mxgraph.view.mxCellState

All Implemented Interfaces:

Serializable, Cloneable

public class mxCellState
extends mxRectangle

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

See Also:

Serialized Form

Field Summary

protected mxPoint	absoluteOffset Holds the absolute offset.
protected List<mxPoint>	absolutePoints List of mxPoints that represent the absolute points of an edge.
protected mxRectangle	boundingBox Holds the largest rectangle which contains all rendering for this cell.
protected Object	cell Reference to the cell that is represented by this state.
protected boolean	invalid Specifies if the state is invalid.
protected String	label Holds the current label value, including newlines which result from word wrapping.
protected mxRectangle	labelBounds Holds the rectangle which contains the label.
protected double	length Caches the distance between the end points and the length of an edge.
protected mxPoint	origin Holds the origin for all child cells.
protected double[]	segments Array of numbers that represent the cached length of each segment of the edge.
protected Map<String,Object>	style Contains an array of key, value pairs that represent the style of the cell.
protected double	terminalDistance Caches the distance between the end points and the length of an edge.
protected mxGraphView	view Reference to the enclosing graph view.
protected mxCellState	visibleSourceState Caches the visible source and target terminal states.
protected mxCellState	visibleTargetState Caches the visible source and target terminal states.

Fields inherited from class com.mxgraph.util.mxRectangle

height, width

Fields inherited from class com.mxgraph.util.mxPoint

x, y

Constructor Summary

mxCellState()
Constructs an empty cell state.

mxCellState(mxGraphView view, Object cell, Map<String,Object> style)
Constructs a new object that represents the current state of the given cell in the specified view.

Method Summary

Object	clone() Returns a clone of this state where all members are deeply cloned except the view and cell references, which are copied with no cloning to the new instance.
mxPoint	getAbsoluteOffset() Returns the absolute offset.
mxPoint	getAbsolutePoint(int index) Returns the absolute point at the given index.
int	getAbsolutePointCount() Returns the number of absolute points.
List<mxPoint>	getAbsolutePoints() Returns the absolute points.
mxRectangle	getBoundingBox() Returns the bounding box.
Object	getCell() Returns the cell that is represented by this state.
String	getLabel() Returns the current label.
mxRectangle	getLabelBounds() Returns the label bounds.
double	getLength() Returns the length.
mxPoint	getOrigin() Returns the origin for the children.
mxRectangle	getPerimeterBounds() Returns the rectangle that should be used as the perimeter of the cell.
mxRectangle	getPerimeterBounds(double border) Returns the rectangle that should be used as the perimeter of the cell.
double[]	getSegments() Returns the length of the segments.
Map<String,Object>	getStyle() Returns the cell style as a map of key, value pairs.
double	getTerminalDistance() Returns the terminal distance.
mxGraphView	getView() Returns the enclosing graph view.
Object	getVisibleTerminal(boolean source) Returns the visible source or target terminal cell.
mxCellState	getVisibleTerminalState(boolean source) Returns the visible source or target terminal state.
boolean	isInvalid() Returns true if the state is invalid.
void	setAbsoluteOffset(mxPoint absoluteOffset) Returns the absolute offset.
mxPoint	setAbsolutePoint(int index, mxPoint point) Returns the absolute point at the given index.
void	setAbsolutePoints(List<mxPoint> absolutePoints) Returns the absolute points.
void	setAbsoluteTerminalPoint(mxPoint point, boolean isSource) Sets the first or last point in the list of points depending on isSource.
void	setBoundingBox(mxRectangle boundingBox) Sets the bounding box.
void	setCell(Object cell) Sets the cell that this state represents.
void	setInvalid(boolean invalid) Sets the invalid state.
void	setLabel(String value) Returns the current label.
void	setLabelBounds(mxRectangle labelBounds) Sets the label bounds.
void	setLength(double length) Sets the length.
void	setOrigin(mxPoint origin) Sets the origin for the children.
void	setSegments(double[] segments) Sets the length of the segments.
void	setStyle(Map<String,Object> style) Sets the cell style as a map of key, value pairs.
void	setTerminalDistance(double terminalDistance) Sets the terminal distance.
void	setView(mxGraphView view) Sets the enclosing graph view.
void	setVisibleTerminalState(mxCellState terminalState, boolean source) Sets the visible source or target terminal state.

Methods inherited from class com.mxgraph.util.mxRectangle

add, contains, equals, getCenterX, getCenterY, getHeight, getRectangle, getWidth, grow, intersectLine, setHeight, setRect, setWidth, toString

Methods inherited from class com.mxgraph.util.mxPoint

getPoint, getX, getY, setX, setY

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

view

protected mxGraphView view

Reference to the enclosing graph view.

cell

protected Object cell

Reference to the cell that is represented by this state.

label

protected String label

Holds the current label value, including newlines which result from word wrapping.

style

protected Map<String,Object> style

Contains an array of key, value pairs that represent the style of the cell.

origin

protected mxPoint origin

Holds the origin for all child cells.

absolutePoints

protected List<mxPoint> absolutePoints

List of mxPoints that represent the absolute points of an edge.

absoluteOffset

protected mxPoint absoluteOffset

Holds the absolute offset. For edges, this is the absolute coordinates of the label position. For vertices, this is the offset of the label relative to the top, left corner of the vertex.

terminalDistance

protected double terminalDistance

Caches the distance between the end points and the length of an edge.

length

protected double length

Caches the distance between the end points and the length of an edge.

segments

protected double[] segments

Array of numbers that represent the cached length of each segment of the edge.

labelBounds

protected mxRectangle labelBounds

Holds the rectangle which contains the label.

boundingBox

protected mxRectangle boundingBox

Holds the largest rectangle which contains all rendering for this cell.

invalid

protected boolean invalid

Specifies if the state is invalid. Default is true.

visibleSourceState

protected mxCellState visibleSourceState

Caches the visible source and target terminal states.

visibleTargetState

protected mxCellState visibleTargetState

Caches the visible source and target terminal states.

Constructor Detail

mxCellState

public mxCellState()

Constructs an empty cell state.

mxCellState

public mxCellState(mxGraphView view,
                   Object cell,
                   Map<String,Object> style)

Constructs a new object that represents the current state of the given cell in the specified view.

Parameters:

view - Graph view that contains the state.

cell - Cell that this state represents.

style - Array of key, value pairs that constitute the style.

Method Detail

isInvalid

public boolean isInvalid()

Returns true if the state is invalid.

setInvalid

public void setInvalid(boolean invalid)

Sets the invalid state.

getView

public mxGraphView getView()

Returns the enclosing graph view.

Returns:

the view

setView

public void setView(mxGraphView view)

Sets the enclosing graph view.

Parameters:

view - the view to set

getLabel

public String getLabel()

Returns the current label.

setLabel

public void setLabel(String value)

Returns the current label.

getCell

public Object getCell()

Returns the cell that is represented by this state.

Returns:

the cell

setCell

public void setCell(Object cell)

Sets the cell that this state represents.

Parameters:

cell - the cell to set

getStyle

public Map<String,Object> getStyle()

Returns the cell style as a map of key, value pairs.

Returns:

the style

setStyle

public void setStyle(Map<String,Object> style)

Sets the cell style as a map of key, value pairs.

Parameters:

style - the style to set

getOrigin

public mxPoint getOrigin()

Returns the origin for the children.

Returns:

the origin

setOrigin

public void setOrigin(mxPoint origin)

Sets the origin for the children.

Parameters:

origin - the origin to set

getAbsolutePoint

public mxPoint getAbsolutePoint(int index)

Returns the absolute point at the given index.

Returns:

the mxPoint at the given index

setAbsolutePoint

public mxPoint setAbsolutePoint(int index,
                                mxPoint point)

Returns the absolute point at the given index.

Returns:

the mxPoint at the given index

getAbsolutePointCount

public int getAbsolutePointCount()

Returns the number of absolute points.

Returns:

the absolutePoints

getAbsolutePoints

public List<mxPoint> getAbsolutePoints()

Returns the absolute points.

Returns:

the absolutePoints

setAbsolutePoints

public void setAbsolutePoints(List<mxPoint> absolutePoints)

Returns the absolute points.

Parameters:

absolutePoints - the absolutePoints to set

getAbsoluteOffset

public mxPoint getAbsoluteOffset()

Returns the absolute offset.

Returns:

the absoluteOffset

setAbsoluteOffset

public void setAbsoluteOffset(mxPoint absoluteOffset)

Returns the absolute offset.

Parameters:

absoluteOffset - the absoluteOffset to set

getTerminalDistance

public double getTerminalDistance()

Returns the terminal distance.

Returns:

the terminalDistance

setTerminalDistance

public void setTerminalDistance(double terminalDistance)

Sets the terminal distance.

Parameters:

terminalDistance - the terminalDistance to set

getLength

public double getLength()

Returns the length.

Returns:

the length

setLength

public void setLength(double length)

Sets the length.

Parameters:

length - the length to set

getSegments

public double[] getSegments()

Returns the length of the segments.

Returns:

the segments

setSegments

public void setSegments(double[] segments)

Sets the length of the segments.

Parameters:

segments - the segments to set

getLabelBounds

public mxRectangle getLabelBounds()

Returns the label bounds.

Returns:

Returns the label bounds for this state.

setLabelBounds

public void setLabelBounds(mxRectangle labelBounds)

Sets the label bounds.

Parameters:

labelBounds -

getBoundingBox

public mxRectangle getBoundingBox()

Returns the bounding box.

Returns:

Returns the bounding box for this state.

setBoundingBox

public void setBoundingBox(mxRectangle boundingBox)

Sets the bounding box.

Parameters:

boundingBox -

getPerimeterBounds

public mxRectangle getPerimeterBounds()

Returns the rectangle that should be used as the perimeter of the cell. This implementation adds the perimeter spacing to the rectangle defined by this cell state.

Returns:

Returns the rectangle that defines the perimeter.

getPerimeterBounds

public mxRectangle getPerimeterBounds(double border)

Returns the rectangle that should be used as the perimeter of the cell.

Returns:

Returns the rectangle that defines the perimeter.

setAbsoluteTerminalPoint

public void setAbsoluteTerminalPoint(mxPoint point,
                                     boolean isSource)

Sets the first or last point in the list of points depending on isSource.

Parameters:

point - Point that represents the terminal point.

isSource - Boolean that specifies if the first or last point should be assigned.

getVisibleTerminal

public Object getVisibleTerminal(boolean source)

Returns the visible source or target terminal cell.

Parameters:

source - Boolean that specifies if the source or target cell should be returned.

getVisibleTerminalState

public mxCellState getVisibleTerminalState(boolean source)

Returns the visible source or target terminal state.

Parameters:

Boolean - that specifies if the source or target state should be returned.

setVisibleTerminalState

public void setVisibleTerminalState(mxCellState terminalState,
                                    boolean source)

Sets the visible source or target terminal state.

Parameters:

terminalState - Cell state that represents the terminal.

source - Boolean that specifies if the source or target state should be set.

clone

public Object clone()

Returns a clone of this state where all members are deeply cloned except the view and cell references, which are copied with no cloning to the new instance.

Overrides:

clone in class mxRectangle