CH.ifa.draw.figures

Class LineConnection

java.lang.Object

CH.ifa.draw.standard.AbstractFigure

CH.ifa.draw.figures.PolyLineFigure

CH.ifa.draw.figures.LineConnection

All Implemented Interfaces:

ConnectionFigure, Figure, FigureChangeListener, Storable, java.io.Serializable, java.lang.Cloneable, java.util.EventListener

Direct Known Subclasses:

ElbowConnection, LayerConnection, PertDependency

public class LineConnection
extends PolyLineFigure
implements ConnectionFigure

A LineConnection is a standard implementation of the ConnectionFigure interface. The interface is implemented with PolyLineFigure.

See Also:

ConnectionFigure, Serialized Form

Field Summary

Fields inherited from class CH.ifa.draw.figures.PolyLineFigure

ARROW_TIP_BOTH, ARROW_TIP_END, ARROW_TIP_NONE, ARROW_TIP_START

Fields inherited from interface CH.ifa.draw.framework.Figure

POPUP_MENU

Constructor Summary

Constructors

Constructor and Description
LineConnection() Constructs a LineConnection.

Method Summary

Modifier and Type	Method and Description
boolean	canConnect() Tests whether a figure can be a connection target.
boolean	canConnect(Figure start, Figure end) Tests whether two figures can be connected.
void	connectEnd(Connector end) Sets the end figure of the connection.
boolean	connectsSame(ConnectionFigure other) Tests whether a connection connects the same figures as another ConnectionFigure.
void	connectStart(Connector start) Sets the start figure of the connection.
void	disconnectEnd() Disconnects the end figure.
void	disconnectStart() Disconnects the start figure.
Connector	end() Gets the end figure of the connection.
Figure	endFigure() Gets the end figure of the connection.
java.awt.Point	endPoint() Gets the end point.
void	endPoint(int x, int y) Sets the end point.
void	figureChanged(FigureChangeEvent e) Sent when a figure changed
void	figureInvalidated(FigureChangeEvent e) Sent when an area is invalid
void	figureRemoved(FigureChangeEvent e) Sent when a figure was removed
void	figureRequestRemove(FigureChangeEvent e) Sent when requesting to remove a figure.
void	figureRequestUpdate(FigureChangeEvent e) Sent when an update should happen.
java.util.Vector	handles() Gets the handles of the figure.
void	insertPointAt(java.awt.Point p, int i) Inserts the point and updates the connection.
void	layoutConnection() Lays out the connection.
void	read(StorableInput dr) Reads the Figure from a StorableInput.
void	release() A figure is released from the drawing.
void	removePointAt(int i) Removes the point and updates the connection.
void	setPointAt(java.awt.Point p, int i) Sets the point and updates the connection.
Connector	start() Gets the start figure of the connection.
Figure	startFigure() Gets the start figure of the connection.
java.awt.Point	startPoint() Gets the start point.
void	startPoint(int x, int y) Sets the start point.
void	updateConnection() Updates the connection.
void	write(StorableOutput dw) Stores the Figure to a StorableOutput.

Methods inherited from class CH.ifa.draw.figures.PolyLineFigure

addPoint, basicDisplayBox, connectorAt, containsPoint, displayBox, draw, findSegment, getAttribute, getEndDecoration, getStartDecoration, isEmpty, joinSegments, locator, pointAt, pointCount, points, setAttribute, setEndDecoration, setStartDecoration, splitSegment

Methods inherited from class CH.ifa.draw.standard.AbstractFigure

addFigureChangeListener, addToContainer, center, changed, clone, connectedTextLocator, connectionInsets, connectorVisibility, decompose, displayBox, displayBox, figures, findFigureInside, includes, invalidate, listener, moveBy, removeFigureChangeListener, removeFromContainer, size, willChange

Methods inherited from class java.lang.Object

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

Methods inherited from interface CH.ifa.draw.framework.ConnectionFigure

joinSegments, pointAt, pointCount, splitSegment

Methods inherited from interface CH.ifa.draw.framework.Figure

addFigureChangeListener, addToContainer, basicDisplayBox, center, changed, clone, connectedTextLocator, connectionInsets, connectorAt, connectorVisibility, containsPoint, decompose, displayBox, displayBox, displayBox, draw, figures, findFigureInside, getAttribute, includes, invalidate, isEmpty, listener, moveBy, removeFigureChangeListener, removeFromContainer, setAttribute, size, willChange

Constructor Detail

LineConnection

public LineConnection()

Constructs a LineConnection. A connection figure has an arrow decoration at the start and end.

Method Detail

canConnect

public boolean canConnect()

Tests whether a figure can be a connection target. ConnectionFigures cannot be connected and return false.

Specified by:

canConnect in interface Figure

Overrides:

canConnect in class AbstractFigure

connectStart

public void connectStart(Connector start)

Sets the start figure of the connection.

Specified by:

connectStart in interface ConnectionFigure

connectEnd

public void connectEnd(Connector end)

Sets the end figure of the connection.

Specified by:

connectEnd in interface ConnectionFigure

disconnectStart

public void disconnectStart()

Disconnects the start figure.

Specified by:

disconnectStart in interface ConnectionFigure

disconnectEnd

public void disconnectEnd()

Disconnects the end figure.

Specified by:

disconnectEnd in interface ConnectionFigure

connectsSame

public boolean connectsSame(ConnectionFigure other)

Tests whether a connection connects the same figures as another ConnectionFigure.

Specified by:

connectsSame in interface ConnectionFigure

startFigure

public Figure startFigure()

Gets the start figure of the connection.

endFigure

public Figure endFigure()

Gets the end figure of the connection.

start

public Connector start()

Gets the start figure of the connection.

Specified by:

start in interface ConnectionFigure

end

public Connector end()

Gets the end figure of the connection.

Specified by:

end in interface ConnectionFigure

canConnect

public boolean canConnect(Figure start,
                          Figure end)

Tests whether two figures can be connected.

Specified by:

canConnect in interface ConnectionFigure

startPoint

public void startPoint(int x,
                       int y)

Sets the start point.

Specified by:

startPoint in interface ConnectionFigure

endPoint

public void endPoint(int x,
                     int y)

Sets the end point.

Specified by:

endPoint in interface ConnectionFigure

startPoint

public java.awt.Point startPoint()

Gets the start point.

Specified by:

startPoint in interface ConnectionFigure

endPoint

public java.awt.Point endPoint()

Gets the end point.

Specified by:

endPoint in interface ConnectionFigure

handles

public java.util.Vector handles()

Gets the handles of the figure. It returns the normal PolyLineHandles but adds ChangeConnectionHandles at the start and end.

Specified by:

handles in interface Figure

Overrides:

handles in class PolyLineFigure

Returns:

a Vector of handles

See Also:

Handle

setPointAt

public void setPointAt(java.awt.Point p,
                       int i)

Sets the point and updates the connection.

Specified by:

setPointAt in interface ConnectionFigure

Overrides:

setPointAt in class PolyLineFigure

insertPointAt

public void insertPointAt(java.awt.Point p,
                          int i)

Inserts the point and updates the connection.

Overrides:

insertPointAt in class PolyLineFigure

removePointAt

public void removePointAt(int i)

Removes the point and updates the connection.

Overrides:

removePointAt in class PolyLineFigure

updateConnection

public void updateConnection()

Updates the connection.

Specified by:

updateConnection in interface ConnectionFigure

layoutConnection

public void layoutConnection()

Lays out the connection. This is called when the connection itself changes. By default the connection is recalculated

figureChanged

public void figureChanged(FigureChangeEvent e)

Description copied from interface: FigureChangeListener

Sent when a figure changed

Specified by:

figureChanged in interface FigureChangeListener

figureRemoved

public void figureRemoved(FigureChangeEvent e)

Description copied from interface: FigureChangeListener

Sent when a figure was removed

Specified by:

figureRemoved in interface FigureChangeListener

figureRequestRemove

public void figureRequestRemove(FigureChangeEvent e)

Description copied from interface: FigureChangeListener

Sent when requesting to remove a figure.

Specified by:

figureRequestRemove in interface FigureChangeListener

figureInvalidated

public void figureInvalidated(FigureChangeEvent e)

Description copied from interface: FigureChangeListener

Sent when an area is invalid

Specified by:

figureInvalidated in interface FigureChangeListener

figureRequestUpdate

public void figureRequestUpdate(FigureChangeEvent e)

Description copied from interface: FigureChangeListener

Sent when an update should happen.

Specified by:

figureRequestUpdate in interface FigureChangeListener

release

public void release()

Description copied from class: AbstractFigure

A figure is released from the drawing. You never call this method directly. Release notifies its listeners.

Specified by:

release in interface Figure

Overrides:

release in class AbstractFigure

See Also:

Figure.release()

write

public void write(StorableOutput dw)

Description copied from class: AbstractFigure

Stores the Figure to a StorableOutput.

Specified by:

write in interface Storable

Overrides:

write in class PolyLineFigure

read

public void read(StorableInput dr)
          throws java.io.IOException

Description copied from class: AbstractFigure

Reads the Figure from a StorableInput.

Specified by:

read in interface Storable

Overrides:

read in class PolyLineFigure

Throws:

java.io.IOException