org.eclipse.gef4.geometry.convert.awt

Class AWT2Geometry

java.lang.Object

org.eclipse.gef4.geometry.convert.awt.AWT2Geometry

public class AWT2Geometry
extends java.lang.Object

Utility class to support conversions from AWT's geometry API to GEF4's geometry API.

Method Summary

Modifier and Type	Method and Description
static AffineTransform	toAffineTransform(java.awt.geom.AffineTransform t) Converts an AWT AffineTransform into a GEF4 AffineTransform
static Line	toLine(java.awt.geom.Line2D l) Converts an AWT Line2D into a GEF4 Line.
static Path	toPath(java.awt.geom.Path2D p) Converts an AWT Path2D into a GEF4 Path.
static Point	toPoint(java.awt.geom.Point2D p) Converts an AWT Point2D into a GEF4 Point.
static Point[]	toPoints(java.awt.geom.Point2D[] pts) Converts a given array of AWT Point2Ds into a an array of GEF4 Points.
static Rectangle	toRectangle(java.awt.geom.Rectangle2D r) Converts an AWT Rectangle2D into a GEF4 Rectangle.
static RoundedRectangle	toRoundedRectangle(java.awt.geom.RoundRectangle2D r) Converts an AWT RoundRectangle2D into a GEF4 RoundedRectangle.

Methods inherited from class java.lang.Object

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

Method Detail

toAffineTransform

public static AffineTransform toAffineTransform(java.awt.geom.AffineTransform t)

Converts an AWT AffineTransform into a GEF4 AffineTransform

Parameters:

t - the AffineTransform to transform

Returns:

a new AffineTransform representing an identical transformation

toLine

public static final Line toLine(java.awt.geom.Line2D l)

Converts an AWT Line2D into a GEF4 Line.

Parameters:

l - the Line2D to convert

Returns:

a new Line, which is constructed by using the start ( Line2D.getP1()) and end (Line2D.getP2()) points of the passed-in Line2D

toPath

public static Path toPath(java.awt.geom.Path2D p)

Converts an AWT Path2D into a GEF4 Path.

Parameters:

p - the Path2D to convert

Returns:

a new Path, which is constructed with the same winding rule and segments as the passed in Path2D.

toPoint

public static final Point toPoint(java.awt.geom.Point2D p)

Converts an AWT Point2D into a GEF4 Point.

Parameters:

p - the Point2D to transform

Returns:

a new Point, which is constructed using the x and y coordinates of the passed-in Point2D

toPoints

public static Point[] toPoints(java.awt.geom.Point2D[] pts)

Converts a given array of AWT Point2Ds into a an array of GEF4 Points.

Parameters:

pts - the array of Point2Ds to transform

Returns:

an array containing new Points, which are constructed by using the x and y coordinates of the passed-in Point2Ds

toRectangle

public static final Rectangle toRectangle(java.awt.geom.Rectangle2D r)

Converts an AWT Rectangle2D into a GEF4 Rectangle. Note that the new Rectangle is simply constructed by using the values of the passed-in Rectangle2D, not compensating the fact that the width and height of a rectangle are interpreted differently in Java2D and GEF4.

In Java2D, the width and height of a Rectangle2D are oversized by exactly 1, i.e. the right and bottom edges of a Rectangle2D are not regarded to belong to the visual object.

If you wish to retain this interpretation, you have to modify the resulting GEF4 Rectangle object as follows:
rectangle.shrink(0, 0, 1, 1);
(see also AbstractRectangleBasedGeometry.shrink(double, double, double, double), AbstractRectangleBasedGeometry.getShrinked(double, double, double, double))

Parameters:

r - the Rectangle2D to convert

Returns:

a new Rectangle, which is constructed using the x, y, width, and height values of the passed-in Rectangle2D.

toRoundedRectangle

public static RoundedRectangle toRoundedRectangle(java.awt.geom.RoundRectangle2D r)

Converts an AWT RoundRectangle2D into a GEF4 RoundedRectangle. Note that the new RoundedRectangle is simply constructed by using the values of the passed-in RoundRectangle2D, not compensating the fact that the width and height of a rectangle are interpreted differently in Java2D and GEF4.

In Java2D, the width and height of a RoundRectangle2D are oversized by exactly 1, i.e. the right and bottom edges of a RoundRectangle2D are not regarded to belong to the visual object.

If you wish to retain this interpretation, you have to modify the resulting GEF4 RoundedRectangle object as follows:
roundedRectangle.shrink(0, 0, 1, 1);
(see also AbstractRectangleBasedGeometry.shrink(double, double, double, double) , AbstractRectangleBasedGeometry.getShrinked(double, double, double, double))

Parameters:

r - the RoundRectangle2D to convert

Returns:

a new RoundedRectangle, which is constructed using the x, y, width, height, arcWidth, and arcHeight values of the passed in RoundRectangle2D