Example #1
0
 public Point2D.Double findStart(ConnectionFigure connection) {
   Figure startFigure = connection.getStartConnector().getOwner();
   Point2D.Double from;
   if (connection.getPointCount() <= 2 || connection.getLiner() != null) {
     if (connection.getEndConnector() == null) {
       from = connection.getEndPoint();
     } else {
       Rectangle2D.Double r1 =
           getConnectorTarget(connection.getEndConnector().getOwner()).getBounds();
       from = new Point2D.Double(r1.x + r1.width / 2, r1.y + r1.height / 2);
     }
   } else {
     from = connection.getPoint(1);
   }
   return chop(startFigure, from);
 }
  public void lineout(ConnectionFigure figure) {
    BezierPath path = ((LineConnectionFigure) figure).getBezierPath();
    Connector start = figure.getStartConnector();
    Connector end = figure.getEndConnector();
    if (start == null || end == null || path == null) {
      return;
    }

    // Special treatment if the connection connects the same figure
    if (figure.getStartFigure() == figure.getEndFigure()) {
      // Ensure path has exactly 4 nodes
      while (path.size() < 4) {
        path.add(1, new BezierPath.Node(0, 0));
      }
      while (path.size() > 4) {
        path.remove(1);
      }
      Point2D.Double sp = start.findStart(figure);
      Point2D.Double ep = end.findEnd(figure);
      Rectangle2D.Double sb = start.getBounds();
      Rectangle2D.Double eb = end.getBounds();
      int soutcode = sb.outcode(sp);
      if (soutcode == 0) {
        soutcode = Geom.outcode(sb, eb);
      }
      int eoutcode = eb.outcode(ep);
      if (eoutcode == 0) {
        eoutcode = Geom.outcode(sb, eb);
      }

      path.get(0).moveTo(sp);
      path.get(path.size() - 1).moveTo(ep);

      switch (soutcode) {
        case Geom.OUT_TOP:
          eoutcode = Geom.OUT_LEFT;
          break;
        case Geom.OUT_RIGHT:
          eoutcode = Geom.OUT_TOP;
          break;
        case Geom.OUT_BOTTOM:
          eoutcode = Geom.OUT_RIGHT;
          break;
        case Geom.OUT_LEFT:
          eoutcode = Geom.OUT_BOTTOM;
          break;
        default:
          eoutcode = Geom.OUT_TOP;
          soutcode = Geom.OUT_RIGHT;
          break;
      }
      // path.get(0).moveTo(sp.x + shoulderSize, sp.y);
      path.get(0).mask = BezierPath.C2_MASK;
      if ((soutcode & Geom.OUT_RIGHT) != 0) {
        path.get(0).x[2] = sp.x + shoulderSize;
        path.get(0).y[2] = sp.y;
      } else if ((soutcode & Geom.OUT_LEFT) != 0) {
        path.get(0).x[2] = sp.x - shoulderSize;
        path.get(0).y[2] = sp.y;
      } else if ((soutcode & Geom.OUT_BOTTOM) != 0) {
        path.get(0).x[2] = sp.x;
        path.get(0).y[2] = sp.y + shoulderSize;
      } else {
        path.get(0).x[2] = sp.x;
        path.get(0).y[2] = sp.y - shoulderSize;
      }
      path.get(1).mask = BezierPath.C2_MASK;
      path.get(1).moveTo(sp.x + shoulderSize, (sp.y + ep.y) / 2);
      path.get(1).x[2] = sp.x + shoulderSize;
      path.get(1).y[2] = ep.y - shoulderSize;
      path.get(2).mask = BezierPath.C1_MASK;
      path.get(2).moveTo((sp.x + ep.x) / 2, ep.y - shoulderSize);
      path.get(2).x[1] = sp.x + shoulderSize;
      path.get(2).y[1] = ep.y - shoulderSize;
      path.get(3).mask = BezierPath.C1_MASK;
      if ((eoutcode & Geom.OUT_RIGHT) != 0) {
        path.get(3).x[1] = ep.x + shoulderSize;
        path.get(3).y[1] = ep.y;
      } else if ((eoutcode & Geom.OUT_LEFT) != 0) {
        path.get(3).x[1] = ep.x - shoulderSize;
        path.get(3).y[1] = ep.y;
      } else if ((eoutcode & Geom.OUT_BOTTOM) != 0) {
        path.get(3).x[1] = ep.x;
        path.get(3).y[1] = ep.y + shoulderSize;
      } else {
        path.get(3).x[1] = ep.x;
        path.get(3).y[1] = ep.y - shoulderSize;
      }
    } else {
      Point2D.Double sp = start.findStart(figure);
      Point2D.Double ep = end.findEnd(figure);

      path.clear();

      if (sp.x == ep.x || sp.y == ep.y) {
        path.add(new BezierPath.Node(ep.x, ep.y));
      } else {
        Rectangle2D.Double sb = start.getBounds();
        sb.x += 5d;
        sb.y += 5d;
        sb.width -= 10d;
        sb.height -= 10d;
        Rectangle2D.Double eb = end.getBounds();
        eb.x += 5d;
        eb.y += 5d;
        eb.width -= 10d;
        eb.height -= 10d;

        int soutcode = sb.outcode(sp);
        if (soutcode == 0) {
          soutcode = Geom.outcode(sb, eb);
        }
        int eoutcode = eb.outcode(ep);
        if (eoutcode == 0) {
          eoutcode = Geom.outcode(eb, sb);
        }

        if ((soutcode & (Geom.OUT_TOP | Geom.OUT_BOTTOM)) != 0
            && (eoutcode & (Geom.OUT_TOP | Geom.OUT_BOTTOM)) != 0) {
          path.add(
              new BezierPath.Node(
                  BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, sp.x, (sp.y + ep.y) / 2));
          path.add(
              new BezierPath.Node(
                  BezierPath.C1_MASK, ep.x, ep.y, ep.x, (sp.y + ep.y) / 2, ep.x, ep.y));
        } else if ((soutcode & (Geom.OUT_LEFT | Geom.OUT_RIGHT)) != 0
            && (eoutcode & (Geom.OUT_LEFT | Geom.OUT_RIGHT)) != 0) {
          path.add(
              new BezierPath.Node(
                  BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, (sp.x + ep.x) / 2, sp.y));
          path.add(
              new BezierPath.Node(
                  BezierPath.C1_MASK, ep.x, ep.y, (sp.x + ep.x) / 2, ep.y, ep.x, ep.y));
        } else if (soutcode == Geom.OUT_BOTTOM || soutcode == Geom.OUT_TOP) {
          path.add(new BezierPath.Node(BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, sp.x, ep.y));
          path.add(new BezierPath.Node(ep.x, ep.y));
        } else {
          path.add(new BezierPath.Node(BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, ep.x, sp.y));
          path.add(new BezierPath.Node(ep.x, ep.y));
        }
      }
    }

    path.invalidatePath();
  }