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

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