org.eclipse.gef4.fx.nodes

Class AbstractInterpolator

java.lang.Object

org.eclipse.gef4.fx.nodes.AbstractInterpolator

All Implemented Interfaces:

IConnectionInterpolator

Direct Known Subclasses:

PolyBezierInterpolator, PolylineInterpolator

public abstract class AbstractInterpolator
extends java.lang.Object
implements IConnectionInterpolator

Abstract base class for IConnectionInterpolator implementations, which supports updating the geometry for an IGeometry curve node, as well as arranging and clipping the decorations.

Constructor Summary

Constructors

Constructor and Description
AbstractInterpolator()

Method Summary

Modifier and Type	Method and Description
protected void	arrangeDecoration(javafx.scene.Node decoration, Point offset, Vector direction) Arranges the given decoration according to the passed-in values.
protected javafx.scene.shape.Shape	clipAtDecoration(javafx.scene.shape.Shape curveShape, javafx.scene.shape.Shape curveClip, javafx.scene.shape.Shape decoration) Adjusts the curveClip so that the curve node does not paint through the given decoration.
protected abstract ICurve	computeCurve(Connection connection) Computes an ICurve geometry from the Connection's points, which is used to update the curve node.
void	interpolate(Connection connection) Interpolates the given Connection, i.e updates its curve node to reflect a respective geometry.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInterpolator

public AbstractInterpolator()

Method Detail

arrangeDecoration

protected void arrangeDecoration(javafx.scene.Node decoration,
                                 Point offset,
                                 Vector direction)

Arranges the given decoration according to the passed-in values.

Parameters:

decoration - The decoration Node to arrange.

offset - The offset for the decoration visual.

direction - The direction of the Connection at the point where the decoration is arranged.

clipAtDecoration

protected javafx.scene.shape.Shape clipAtDecoration(javafx.scene.shape.Shape curveShape,
                                                    javafx.scene.shape.Shape curveClip,
                                                    javafx.scene.shape.Shape decoration)

Adjusts the curveClip so that the curve node does not paint through the given decoration.

Parameters:

curveShape - A shape describing the ICurve geometry, which is used for clipping.

curveClip - A shape that represents the clip of the curve node, interpreted in scene coordinates.

decoration - The decoration to clip the curve node from.

Returns:

A shape representing the resulting clip, interpreted in scene coordinates.

computeCurve

protected abstract ICurve computeCurve(Connection connection)

Computes an ICurve geometry from the Connection's points, which is used to update the curve node.

Parameters:

connection - The Connection, for which to compute a new ICurve geometry.

Returns:

An ICurve that represents the to be rendered geometry.

interpolate

public void interpolate(Connection connection)

Description copied from interface: IConnectionInterpolator

Interpolates the given Connection, i.e updates its curve node to reflect a respective geometry. The IConnectionInterpolator is also responsible of arranging the connection's start and end decorations (and has to ensure the curve node is properly clipped to not render through the decorations).

Specified by:

interpolate in interface IConnectionInterpolator

Parameters:

connection - The Connection to interpolate.