bundles/org.simantics.diagram/src/org/simantics/diagram/participant/ControlPoint.java

   1 package org.simantics.diagram.participant;
   2
   3 import java.awt.geom.AffineTransform;
   4 import java.awt.geom.Point2D;
   5
   6 import org.simantics.g2d.diagram.participant.pointertool.TerminalUtil.TerminalInfo;
   7 import org.simantics.g2d.elementclass.BranchPoint.Direction;
   8
   9 /**
  10  * @author Tuukka Lehtonen
  11  */
  12 public class ControlPoint {
  13
  14     private final Point2D position           = new Point2D.Double();
  15     private Direction     direction;
  16     private TerminalInfo  attachedToTerminal = null;
  17
  18     public ControlPoint(Point2D pos) {
  19         this(pos, Direction.Any);
  20     }
  21
  22     public ControlPoint(Point2D pos, Direction direction) {
  23         this.position.setLocation(pos);
  24         this.direction = direction;
  25     }
  26
  27     public ControlPoint setPosition(Point2D position) {
  28         this.position.setLocation(position);
  29         return this;
  30     }
  31
  32     public ControlPoint setPosition(double x, double y) {
  33         this.position.setLocation(x, y);
  34         return this;
  35     }
  36
  37     /**
  38      * Take the control point position from the translation part of the
  39      * specified AffineTransform.
  40      *
  41      * @param at
  42      * @return
  43      */
  44     public ControlPoint setPosition(AffineTransform at) {
  45         this.position.setLocation(at.getTranslateX(), at.getTranslateY());
  46         return this;
  47     }
  48
  49     public ControlPoint setDirection(Direction direction) {
  50         if (direction == null)
  51             throw new NullPointerException("trying to set null direction");
  52         this.direction = direction;
  53         return this;
  54     }
  55
  56     public ControlPoint setAttachedToTerminal(TerminalInfo info) {
  57         this.attachedToTerminal = info;
  58         return this;
  59     }
  60
  61     public Direction getDirection() {
  62         return direction;
  63     }
  64
  65     public Point2D getPosition() {
  66         return new Point2D.Double(position.getX(), position.getY());
  67     }
  68
  69     public boolean isAttachedToTerminal() {
  70         return attachedToTerminal != null;
  71     }
  72
  73     public TerminalInfo getAttachedTerminal() {
  74         return attachedToTerminal;
  75     }
  76
  77     @Override
  78     public String toString() {
  79         return "[" + position + ", " + direction + ", " + isAttachedToTerminal() + "]";
  80     }
  81
  82 }