// XAAL toolkit
// Copyright (C) 2009 Ville Karavirta <vkaravir(a)cs.hut.fi>
//
// This program 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.
//
// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
/**
 * 
 */
package xaal.objects;

import java.awt.Rectangle;

/**
 * @author vkaravir
 *
 */
public abstract class XaalObject {
    private Xaal xaalDoc;
    private String id;

    private static int count = 1;
    
    public XaalObject(Xaal xaalDoc) {
        this.xaalDoc = xaalDoc;
    }
    
    public Xaal getXaal() {
        return xaalDoc;
    }
    
    /**
     * Return the id of this object. If no id has been set, this method returns
     * a generated, unique id.
     * 
     * @return Returns the id.
     */
    public String getId() {
        if (id == null) {
            id = generateId();
        }
        return id;
    }

    /**
     * @param id The id to set.
     */
    public void setId(String id) {
        this.id = id;
    }

    /**
     * Generates a unique id for this graphical primitive.
     * 
     * @return A unique id.
     */
    protected String generateId() {
        String cName = getClass().getName();
        return cName.substring(cName.lastIndexOf('.') + 1) + count++;
    }

    
    public abstract Rectangle getBounds();
    public int[] getAnchorCoordinate(String anchor) {
        Rectangle r = getBounds();
        if (anchor.equalsIgnoreCase("NW")) {
            return new int[] {r.x, r.y};
        } else if (anchor.equalsIgnoreCase("N")) {
            return new int[] {r.x + r.width/2, r.y};
        } else if (anchor.equalsIgnoreCase("NE")) {
            return new int[] {r.x + r.width, r.y};
        } else if (anchor.equalsIgnoreCase("E")) {
            return new int[] {r.x + r.width, r.y + r.height/2};
        } else if (anchor.equalsIgnoreCase("SE")) {
            return new int[] {r.x + r.width, r.y + r.height};
        } else if (anchor.equalsIgnoreCase("S")) {
            return new int[] {r.x + r.width/2, r.y + r.height};
        } else if (anchor.equalsIgnoreCase("SW")) {
            return new int[] {r.x, r.y + r.height};
        } else if (anchor.equalsIgnoreCase("W")) {
            return new int[] {r.x, r.y + r.height/2};
        } else if (anchor.equalsIgnoreCase("C")) {
            return new int[] {r.x + r.width/2, r.y + r.height/2};
        } else if (anchor.equalsIgnoreCase("CENTER")) {
            return new int[] {r.x + r.width/2, r.y + r.height/2};
        } else {
            
        }
        return new int[] {0,0};
    }
}