| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: ILabelable.java 21103 2008-06-03 10:04:57Z vcaballero $

* $Log$

* Revision 1.2  2007-03-09 11:20:57  jaume

* Advanced symbology (start committing)

*

* Revision 1.1.2.5  2007/02/15 16:23:44  jaume

* *** empty log message ***

*

* Revision 1.1.2.4  2007/02/09 07:47:05  jaume

* Isymbol moved

*

* Revision 1.1.2.3  2007/02/02 16:21:24  jaume

* start commiting labeling stuff

*

* Revision 1.1.2.2  2007/02/01 17:46:49  jaume

* *** empty log message ***

*

* Revision 1.1.2.1  2007/01/30 18:10:45  jaume

* start commiting labeling stuff

*

*

*/

package org.gvsig.fmap.mapcontext.rendering.legend.styling;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import org.gvsig.compat.print.PrintAttributes;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.tools.task.Cancellable;

/**

 * This interface enables support for labeling an object such as a layer, but also others, if any. It gives support for detecting if labeling is being applied (<code>isLabeled()</code> and <code>setIsLabeled()</code>), to manage the labeling strategy (<code>getLabelingStrategy()</code> and <code>setLabelingStrategy</code>). The labeling is performed by the <code>drawLabels(..)</code> method.

 * @author   jaume dominguez faus - jaume.dominguez@iver.es

 */

public interface ILabelable {

        /**

         * Returns <b>true</b> if labels are drawn, or <b>false</b> otherwise.

         * @return <b>boolean</b> telling if labels are drawn

         */

        public boolean isLabeled();

        /**

         * Enables or disables the label drawing.

         * @param isLabeled, if true then labels will be drawn

         */

        public void setIsLabeled(boolean isLabeled);

        /**

         * Returns the current labeling strategy

         * @return ILabelingStrategy

         * @see ILabelingStrategy

         */

        public ILabelingStrategy getLabelingStrategy();

        /**

         * Sets the new labeling strategy. Changes on the results will take effect next time the drawLabels(...) method is invoked.

         * @param  strategy

         * @uml.property  name="labelingStrategy"

         */

        public void setLabelingStrategy(ILabelingStrategy strategy);

    /**

     * Causes the labels to be drawn. The policy of process is determined by the

     * LabelingStrategy previously set.

     * 

     * @param image

     * @param g

     * @param viewPort

     * @param cancel

     * @param scale

     * @param dpi

     * @throws ReadException

     */

        public void drawLabels(BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel, double scale, double dpi) throws ReadException;

        public void printLabels(Graphics2D g, ViewPort viewPort,

                    Cancellable cancel, double scale, PrintAttributes properties) throws ReadException;

}