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jtstand-common is a library derived from jcommon, used by jtstand-chart, which is derived from jfreechart
/*
* Copyright (c) 2009 Albert Kurucz.
*
* This file, RectangleAnchor.java is part of JTStand.
*
* JTStand is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JTStand is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with GTStand. If not, see true if this object is equal to the specified
* object, and false otherwise.
*
* @param obj the other object (null permitted).
*
* @return A boolean.
*/
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof RectangleAnchor)) {
return false;
}
final RectangleAnchor order = (RectangleAnchor) obj;
if (!this.name.equals(order.name)) {
return false;
}
return true;
}
/**
* Returns a hash code value for the object.
*
* @return The hashcode
*/
public int hashCode() {
return this.name.hashCode();
}
/**
* Returns the (x, y) coordinates of the specified anchor.
*
* @param rectangle the rectangle.
* @param anchor the anchor.
*
* @return The (x, y) coordinates.
*/
public static Point2D coordinates(final Rectangle2D rectangle,
final RectangleAnchor anchor) {
Point2D result = new Point2D.Double();
if (anchor == RectangleAnchor.CENTER) {
result.setLocation(rectangle.getCenterX(), rectangle.getCenterY());
}
else if (anchor == RectangleAnchor.TOP) {
result.setLocation(rectangle.getCenterX(), rectangle.getMinY());
}
else if (anchor == RectangleAnchor.BOTTOM) {
result.setLocation(rectangle.getCenterX(), rectangle.getMaxY());
}
else if (anchor == RectangleAnchor.LEFT) {
result.setLocation(rectangle.getMinX(), rectangle.getCenterY());
}
else if (anchor == RectangleAnchor.RIGHT) {
result.setLocation(rectangle.getMaxX(), rectangle.getCenterY());
}
else if (anchor == RectangleAnchor.TOP_LEFT) {
result.setLocation(rectangle.getMinX(), rectangle.getMinY());
}
else if (anchor == RectangleAnchor.TOP_RIGHT) {
result.setLocation(rectangle.getMaxX(), rectangle.getMinY());
}
else if (anchor == RectangleAnchor.BOTTOM_LEFT) {
result.setLocation(rectangle.getMinX(), rectangle.getMaxY());
}
else if (anchor == RectangleAnchor.BOTTOM_RIGHT) {
result.setLocation(rectangle.getMaxX(), rectangle.getMaxY());
}
return result;
}
/**
* Creates a new rectangle with the specified dimensions that is aligned to
* the given anchor point (anchorX, anchorY).
*
* @param dimensions the dimensions (null not permitted).
* @param anchorX the x-anchor.
* @param anchorY the y-anchor.
* @param anchor the anchor (null not permitted).
*
* @return A rectangle.
*/
public static Rectangle2D createRectangle(final Size2D dimensions,
final double anchorX,
final double anchorY,
final RectangleAnchor anchor) {
Rectangle2D result = null;
final double w = dimensions.getWidth();
final double h = dimensions.getHeight();
if (anchor == RectangleAnchor.CENTER) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.TOP) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.BOTTOM) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.LEFT) {
result = new Rectangle2D.Double(
anchorX, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.RIGHT) {
result = new Rectangle2D.Double(
anchorX - w, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.TOP_LEFT) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.TOP_RIGHT) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.BOTTOM_LEFT) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
else if (anchor == RectangleAnchor.BOTTOM_RIGHT) {
result = new Rectangle2D.Double(
anchorX - w / 2.0, anchorY - h / 2.0, w, h
);
}
return result;
}
/**
* Ensures that serialization returns the unique instances.
*
* @return The object.
*
* @throws ObjectStreamException if there is a problem.
*/
private Object readResolve() throws ObjectStreamException {
RectangleAnchor result = null;
if (this.equals(RectangleAnchor.CENTER)) {
result = RectangleAnchor.CENTER;
}
else if (this.equals(RectangleAnchor.TOP)) {
result = RectangleAnchor.TOP;
}
else if (this.equals(RectangleAnchor.BOTTOM)) {
result = RectangleAnchor.BOTTOM;
}
else if (this.equals(RectangleAnchor.LEFT)) {
result = RectangleAnchor.LEFT;
}
else if (this.equals(RectangleAnchor.RIGHT)) {
result = RectangleAnchor.RIGHT;
}
else if (this.equals(RectangleAnchor.TOP_LEFT)) {
result = RectangleAnchor.TOP_LEFT;
}
else if (this.equals(RectangleAnchor.TOP_RIGHT)) {
result = RectangleAnchor.TOP_RIGHT;
}
else if (this.equals(RectangleAnchor.BOTTOM_LEFT)) {
result = RectangleAnchor.BOTTOM_LEFT;
}
else if (this.equals(RectangleAnchor.BOTTOM_RIGHT)) {
result = RectangleAnchor.BOTTOM_RIGHT;
}
return result;
}
}
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