Module org.jhotdraw8.draw

Package org.jhotdraw8.draw.constrain

Class NullConstrainer

java.lang.Object

org.jhotdraw8.fxbase.beans.SimpleObservable

org.jhotdraw8.draw.constrain.AbstractConstrainer

org.jhotdraw8.draw.constrain.NullConstrainer

All Implemented Interfaces:

javafx.beans.Observable, Constrainer, ObservableMixin

public class NullConstrainer
extends AbstractConstrainer

NullConstrainer does not constrain anything.

Author:

Werner Randelshofer

Field Summary

Fields inherited from interface org.jhotdraw8.draw.constrain.Constrainer

DIRECTION_NEAREST, STYLECLASS_CONSTRAINER_MAJOR_GRID, STYLECLASS_CONSTRAINER_MINOR_GRID

Constructor Summary

Constructors

Constructor	Description
NullConstrainer()

Method Summary

Modifier and Type	Method	Description
@NonNull javafx.scene.Node	getNode()	Returns a node that renders the grid in view coordinates.
double	translateAngle(Figure f, double angle, double dir)	Snaps an angle (in degrees) to the closest constrained orientation in the specified direction.
@NonNull CssPoint2D	translatePoint(Figure f, @NonNull CssPoint2D cssp, @NonNull CssPoint2D cssdir)	Snaps a point to the next constrained location in the specified direction.
@NonNull CssRectangle2D	translateRectangle(Figure f, @NonNull CssRectangle2D cssr, @NonNull CssPoint2D cssdir)	Snaps a rectangle into the the closest constraint position in the given direction.
void	updateNode(DrawingView drawingView)	Updates the node.

Methods inherited from class org.jhotdraw8.fxbase.beans.SimpleObservable

getInvalidationListeners

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jhotdraw8.draw.constrain.Constrainer

constrainAngle, constrainPoint, constrainRectangle

Methods inherited from interface javafx.beans.Observable

subscribe

Methods inherited from interface org.jhotdraw8.fxbase.beans.ObservableMixin

addListener, fireInvalidated, fireInvalidated, invalidated, removeListener

Constructor Details

NullConstrainer

public NullConstrainer()

Method Details

translatePoint

public @NonNull CssPoint2D translatePoint(Figure f,
 @NonNull CssPoint2D cssp,
 @NonNull CssPoint2D cssdir)

Description copied from interface: Constrainer

Snaps a point to the next constrained location in the specified direction.

This method changes the point which is passed as a parameter.

Parameters:

f - The figure for which the point is to be constrained.

cssp - A point on the drawing.

cssdir - A direction vector. If the vector length is zero, then the nearest constrained location is used.

Returns:

Returns the constrained point.

translateRectangle

public @NonNull CssRectangle2D translateRectangle(Figure f,
 @NonNull CssRectangle2D cssr,
 @NonNull CssPoint2D cssdir)

Description copied from interface: Constrainer

Snaps a rectangle into the the closest constraint position in the given direction.

This method changes the location of the rectangle which is passed as a parameter. This method does not change the size of the rectangle.

Parameters:

f - The figure for which points are to be constrained.

cssr - A rectangle on the drawing.

cssdir - A direction vector. If the vector length is zero, then the nearest constrained location is used.

Returns:

Returns the constrained rectangle.

translateAngle

public double translateAngle(Figure f,
 double angle,
 double dir)

Description copied from interface: Constrainer

Snaps an angle (in degrees) to the closest constrained orientation in the specified direction.

Parameters:

f - The figure for which the angle is to be constrained.

angle - The angle (in degrees).

dir - A direction. If the direction is zero, then the nearest constrained location is used.

Returns:

The closest constrained angle (in radians) in the specified direction.

getNode

public @NonNull javafx.scene.Node getNode()

Description copied from interface: Constrainer

Returns a node that renders the grid in view coordinates.

Returns:

the node

updateNode

public void updateNode(DrawingView drawingView)

Description copied from interface: Constrainer

Updates the node.

Parameters:

drawingView - the drawing view