closedshape.java

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package connex.plugins.whiteboard;

import java.awt.*;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2006</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public abstract class ClosedShape
    extends ShapeObj {



  protected int x1, x2, y1, y2;

  protected int tmpx;
  protected int tmpy;

  public ClosedShape() {

  }

  public void draw(Point start, Point end) {
    this.start = start;
    this.end = end;
    setBounds(this.start, this.end);

    draw();
    lastS = new Point(start);
    lastE = new Point(end);

  }

  protected void drawSelection() {

    BasicStroke stroke = new BasicStroke(1.0f);
    float dash1[] = {
        2.0f};
    BasicStroke dashed = new BasicStroke(1.0f,
                                         BasicStroke.CAP_BUTT,
                                         BasicStroke.JOIN_MITER,
                                         10.0f, dash1, 0.0f);
    g2D.setStroke(dashed);
    /*remove Shadow*/
    if (lastS != null && lastE != null) {
      if (!lastE.equals(end) || !lastS.equals(start)) {

        selection(lastS, lastE, true);

      }
    }
    selection(this.start, this.end, false);
    g2D.setStroke(stroke);
  }

  protected void selection(Point pt1, Point pt2, boolean xor) {
    g2D.setColor(Color.magenta);
    if (xor) {
      g2D.setXORMode(Color.white);
    }
    setBounds(pt1, pt2);

    g2D.drawRect(x1, y1, x2 - x1, y2 - y1);

    g2D.fillRect(x1 - 2, y1 - 2, 5, 5);
    g2D.fillRect(x2 - 2, y1 - 2, 5, 5);
    g2D.fillRect(x1 - 2, y2 - 2, 5, 5);
    g2D.fillRect(x2 - 2, y2 - 2, 5, 5);
    shapeSelection();
  }

  /**
   * shapeSelection
   */
  protected abstract void shapeSelection();

  /**
   *
   * @param pt Point
   * @param pt2 Point
   */

  public void move(Point pt, Point pt2) {

    tmpx = (pt.x - pt2.x);
    tmpy = (pt.y - pt2.y);

    if (select == 1) {

      x1 += tmpx;
      y1 += tmpy;
      if (x1 + 2 > x2) {
        select = 2;
      }
      if (y1 > y2) {
        select = 4;
      }

    }

    if (select == 2) {
      x2 += tmpx;
      y1 += tmpy;
      if (x2 < x1) {
        select = 1;
      }
      if (y1 > y2) {
        select = 3;
      }

    }
    if (select == 3) {
      x2 += tmpx;
      y2 += tmpy;
      if (x2 < x1) {
        select = 4;
      }
      if (y1 > y2) {
        select = 2;
      }

    }
    if (select == 4) {
      x1 += tmpx;
      y2 += tmpy;
      if (x2 < x1) {
        select = 3;
      }
      if (y1 > y2) {
        select = 1;
      }

    }

    if (select == 5) {
      x2 += tmpx;
      x1 += tmpx;
      y2 += tmpy;
      y1 += tmpy;

    }

    start.setLocation(x1, y1);
    end.setLocation(x2, y2);
    draw(start, end);

  }

  void setBounds(Point pt1, Point pt2) {
    x1 = (pt1.x <= pt2.x) ? pt1.x : pt2.x;
    x2 = (pt1.x >= pt2.x) ? pt1.x : pt2.x;
    y1 = (pt1.y <= pt2.y) ? pt1.y : pt2.y;
    y2 = (pt1.y >= pt2.y) ? pt1.y : pt2.y;
  }

  public boolean SelectShape(Point pt) {
    int px = pt.x;
    int py = pt.y;

    if (px - x1 < 5 && px - x1 > -5 && py - y1 < 5 && py - y1 > -5) {
      this.select = 1;

      return true;
    }
    if (px - x2 < 5 && px - x2 > -5 && py - y1 < 5 && py - y1 > -5) {
      select = 2;

      return true;
    }
    if (px - x2 < 5 && px - x2 > -5 && py - y2 < 5 && py - y2 > -5) {
      select = 3;

      return true;
    }

    if (px - x1 < 5 && px - x1 > -5 && py - y2 < 5 && py - y2 > -5) {
      select = 4;

      return true;
    }

    if (this.contains(pt)) {
      select = 5;
      return true;
    }
    return false;
  }

  public boolean contains(Point pt) {

    if ( (pt.y < y1) || (pt.y > y2)) {
      return false;
    }
    if ( (pt.x < x1) || (pt.x > x2)) {
      return false;
    }

    return true;

  }

}