plantuml/src/net/sourceforge/plantuml/klimt/geom/XRectangle2D.java

104 lines
2.2 KiB
Java

package net.sourceforge.plantuml.klimt.geom;
public class XRectangle2D {
public final double x;
public final double y;
public final double width;
public final double height;
public XRectangle2D(double x, double y, double width, double height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
public double getWidth() {
return width;
}
public double getHeight() {
return height;
}
public double getX() {
return x;
}
public double getY() {
return y;
}
public double getCenterX() {
return x + width / 2;
}
public double getCenterY() {
return y + height / 2;
}
public double getMinX() {
return x;
}
public double getMaxX() {
return x + width;
}
public double getMinY() {
return y;
}
public double getMaxY() {
return y + height;
}
public boolean intersects(XRectangle2D other) {
return intersects(other.getX(), other.getY(), other.getWidth(), other.getHeight());
}
private boolean intersects(double x, double y, double w, double h) {
return w > 0 && h > 0 && getWidth() > 0 && getHeight() > 0 && x < getX() + getWidth() && x + w > getX()
&& y < getY() + getHeight() && y + h > getY();
}
public boolean contains(XPoint2D point) {
throw new UnsupportedOperationException();
}
public boolean contains(double xp, double yp) {
if (width <= 0 || height <= 0)
throw new IllegalStateException();
return xp >= getMinX() && xp < getMaxX() && yp >= getMinY() && yp < getMaxY();
}
public XPoint2D intersect(XLine2D line) {
final XPoint2D a = new XPoint2D(x, y);
final XPoint2D b = new XPoint2D(x + width, y);
final XPoint2D c = new XPoint2D(x + width, y + height);
final XPoint2D d = new XPoint2D(x, y + height);
final XLine2D line1 = XLine2D.line(a, b);
final XLine2D line2 = XLine2D.line(b, c);
final XLine2D line3 = XLine2D.line(c, d);
final XLine2D line4 = XLine2D.line(d, a);
XPoint2D result = line.intersect(line1);
if (result != null)
return result;
result = line.intersect(line2);
if (result != null)
return result;
result = line.intersect(line3);
if (result != null)
return result;
result = line.intersect(line4);
if (result != null)
return result;
return null;
}
}