Application: gvSIG desktop

/**

 * 

 */

package com.iver.cit.gvsig.fmap.layers;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import java.util.Vector;

import com.iver.cit.gvsig.fmap.DriverException;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.layers.layerOperations.ComposedLayer;

import com.iver.utiles.swing.threads.Cancellable;

/**

 * Group WMS layers for make a single petition to the

 * server for all layers.

 * 

 * It is posible only if almost all params are the same. For this

 * comparasion, ComposedLayerWMS uses the method 

 * {@link com.iver.cit.gvsig.fmap.layers.FLyrWMS#isComposedLayerCompatible(com.iver.cit.gvsig.fmap.layers.FLayer)}

 * 

 * 

 * @see com.iver.cit.gvsig.fmap.layers.layerOperations.ComposedLayer

 * @see com.iver.cit.gvsig.fmap.layers.FLyrWMS

 */

public class ComposedLayerWMS extends ComposedLayer {

        private FLyrWMS layer=null;

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.ComposedLayer#canAdd(com.iver.cit.gvsig.fmap.layers.FLayer)

         */

        public boolean canAdd(FLayer layer) {

                if (this.layer != null) {

                        return this.layer.isComposedLayerCompatible(layer);

                }

                return false;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.ComposedLayer#doAdd(com.iver.cit.gvsig.fmap.layers.FLayer)

         */

        protected void doAdd(FLayer layer) throws Exception {

                FLyrWMS aLayer =(FLyrWMS)layer;

                if (this.layer == null) {

                        this.layer = new FLyrWMS();

                        this.layer.setXMLEntity(aLayer.getXMLEntity());

                        return;

                }                        

                this.layer.setLayerQuery( this.layer.getLayerQuery() + ","+ aLayer.getLayerQuery());

                Vector aStyles = aLayer.getStyles();

                if (aStyles != null) {

                        Vector myStyles = this.layer.getStyles();

                        if (myStyles == null) {

                                this.layer.setStyles(aStyles);

                        } else {

                                myStyles.addAll(aStyles);

                                this.layer.setStyles(myStyles);

                        }

                }

                //revisar el fullextend para ajustarlo a todas las capas

                this.layer.getFullExtent().add(aLayer.getFullExtent());

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.ComposedLayer#doDraw(java.awt.image.BufferedImage, java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort, com.iver.utiles.swing.threads.Cancellable, double)

         */

        protected void doDraw(BufferedImage image, Graphics2D g, ViewPort viewPort,

                        Cancellable cancel, double scale) throws DriverException {

                this.layer.draw(image,g,viewPort,cancel,scale);

        }

}