jfig.commands
Class JoinSplitLinesCommand

java.lang.Object
  jfig.commands.Command
      jfig.commands.JoinSplitLinesCommand

public class JoinSplitLinesCommand

extends Command

join or split polyline objects

JoinSplitLinesCommand is used to join two polylines or to split a line into two separate polylines (inluding splines). This command cannot be applied to other object types.

Field Summary

static int	JOIN
protected FigObject	line1
protected FigObject	line2
protected FigObject	line3
protected int	mode
protected int	n_points
static int	NONE
protected java.awt.Point	P1
protected java.awt.Point	P2
static int	SPLIT

Fields inherited from class jfig.commands.Command

editor, objectCanvas, ready

Constructor Summary

JoinSplitLinesCommand(FigBasicEditor editor, FigCanvas objectCanvas)

Method Summary

double	distance(java.awt.Point p1, java.awt.Point p2)
void	execute() execute the current editor command
FigPolyline	findPolyline(java.awt.Point wp)
java.lang.String	getDescription() one-line description of this command
FigObject[]	getModifiedObjects() return an array-wrapped reference to the polyline (or spline) objects modified by this command.
void	join()
void	mousePressed(FigCanvasEvent evt) react to a mouse click on the editor canvas
void	showAllPolylineMarkers()
void	split()
java.lang.String	toString() return a (possibly verbose) description of this Command object
void	undo() undo this command

Methods inherited from class jfig.commands.Command

cancel, isReady, message, notifyEditor, statusMessage

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final int NONE

See Also:

Constant Field Values

JOIN

public static final int JOIN

See Also:

Constant Field Values

SPLIT

public static final int SPLIT

See Also:

Constant Field Values

n_points

protected int n_points

mode

protected int mode

line1

protected FigObject line1

line2

protected FigObject line2

line3

protected FigObject line3

P1

protected java.awt.Point P1

P2

protected java.awt.Point P2

Constructor Detail

JoinSplitLinesCommand

public JoinSplitLinesCommand(FigBasicEditor editor,
                             FigCanvas objectCanvas)

Method Detail

getModifiedObjects

public FigObject[] getModifiedObjects()

return an array-wrapped reference to the polyline (or spline) objects modified by this command. You will have to check the mode of this command to decide how to interpret the returned objects...

Overrides:

getModifiedObjects in class Command

execute

public void execute()

Description copied from class: Command

execute the current editor command

This method is empty for class Command.

Overrides:

execute in class Command

undo

public void undo()

Description copied from class: Command

undo this command

Try to undo this command as far as possible. Don't try to undo() a command that has never been execute()d before. This method is empty for class Command.

Overrides:

undo in class Command

mousePressed

public void mousePressed(FigCanvasEvent evt)

Description copied from class: Command

react to a mouse click on the editor canvas

This method provides the central callback from the editor to its current command object. Passing a FigCanvasEvent parameter, the editor provides information both about the screen coordinates and the world coordinates of the mouse event.

Naturally, mouse presses are ignored for class Command.

Overrides:

mousePressed in class Command

findPolyline

public FigPolyline findPolyline(java.awt.Point wp)

join

public void join()

split

public void split()

distance

public double distance(java.awt.Point p1,
                       java.awt.Point p2)

showAllPolylineMarkers

public void showAllPolylineMarkers()

getDescription

public java.lang.String getDescription()

Description copied from class: Command

one-line description of this command

return a one-line desription of this command, e.g. to label the undo/redo buttons, if any

Overrides:

getDescription in class Command

toString

public java.lang.String toString()

Description copied from class: Command

return a (possibly verbose) description of this Command object

Overrides:

toString in class Command