/**********************************************
    * Copyright (C) 2011 Lukas Laag
    * This file is part of svgreal.
    * 
    * svgreal is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    * 
   * svgreal is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU General Public License
   * along with svgreal.  If not, see http://www.gnu.org/licenses/
   **********************************************/
  package org.vectomatic.svg.edit.client.command.path;
  
  import org.vectomatic.dom.svg.OMSVGPathSeg;
  import org.vectomatic.dom.svg.OMSVGPathSegMovetoAbs;
  import org.vectomatic.dom.svg.OMSVGPoint;
  
  import com.google.gwt.dom.client.Element;
  
  /**
   * Class to represent a path moveto segment 
   * @author laaglu
   */
  public class SVGMoveSegRep extends SVGSegRep {
  	/**
  	 * The moveto component of this path segment
  	 */
  	protected OMSVGPathSegMovetoAbs moveToSeg;
  
  	public SVGMoveSegRep(IPathRepOwner owner, OMSVGPathSegMovetoAbs moveToSeg) {
  		super(owner);
  		this.moveToSeg = moveToSeg;
  	}
  
  	public OMSVGPathSeg getElement() {
  		return moveToSeg;
  	}
  
  	@Override
  	public float getX() {
  		return moveToSeg.getX();
  	}
  	@Override
  	public void setX(float x) {
  		moveToSeg.setX(x);
  	}
  	@Override
  	public float getY() {
  		return moveToSeg.getY();
  	}
  	@Override
  	public void setY(float y) {
  		moveToSeg.setY(y);
  	}
  
  	@Override
  	public void update(float hs) {
  		float x = moveToSeg.getX();
  		float y = moveToSeg.getY();
  		vertex.getX().getBaseVal().setValue(x - hs);
  		vertex.getY().getBaseVal().setValue(y - hs);
  		vertex.getWidth().getBaseVal().setValue(hs * 2);
  		vertex.getHeight().getBaseVal().setValue(hs * 2);
  	}
  
  	@Override
  	public void updateEnd(OMSVGPoint delta, float hs) {
  		moveToSeg.setX(moveToSeg.getX() + delta.getX());
  		moveToSeg.setY(moveToSeg.getY() + delta.getY());
  		update(hs);
  	}
  
  	@Override
  	public void processMouseMove(OMSVGPoint delta, Element target, float hs, boolean isCtrlKeyDown) {
  		if (target == null) {
  			updateEnd(delta, hs);
  			if (next != null) {
  				next.updateStart(delta, hs);
  			}
  		}
  	}
  	
  	@Override
  	public String toString() {
  		StringBuilder builder = new StringBuilder("M ");
  		builder.append(moveToSeg.getX());
  		builder.append(",");
  		builder.append(moveToSeg.getY());
  		return builder.toString();
  	}
  }