Application: gvSIG desktop

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

 *

 * Copyright (C) 2004 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

 */

package com.iver.core.mdiManager;

import java.awt.Component;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.Iterator;

import java.util.TreeMap;

import javax.swing.JComponent;

import javax.swing.JInternalFrame;

import com.iver.andami.ui.mdiManager.SingletonDialogAlreadyShownException;

import com.iver.andami.ui.mdiManager.SingletonView;

import com.iver.andami.ui.mdiManager.View;

import com.iver.andami.ui.mdiManager.ViewInfo;

/**

 * DOCUMENT ME!

 *

 * @author $author$

 * @version $Revision: 1836 $

 */

public class SingletonViewSupport {

        private static int singletonViewInfoID = 0;

        /** Hashtable que asocia contenido con vistas */

        private TreeMap contentViewInfo = new TreeMap(new SingletonViewInfoComparator());

        private ViewInfoSupport vis;

        private FrameViewSupport frameViewSupport;

        private TreeMap contentFrame = new TreeMap(new SingletonViewInfoComparator());

        /**

         * DOCUMENT ME!

         *

         * @param vis DOCUMENT ME!

         * @param fvs

         *

         * @see com.iver.andami.ui.mdiManager.MDIManager#init(com.iver.andami.ui.mdiFrame.MDIFrame)

         */

        public SingletonViewSupport(ViewInfoSupport vis, FrameViewSupport fvs) {

                this.vis = vis;

                this.frameViewSupport = fvs;

        }

        /**

         * Devuelve una referencia a la vista si ya est? mostrada o null si la

         * vista no ha sido a?adida o ya fue cerrada

         *

         * @param viewClass DOCUMENT ME!

         * @param model DOCUMENT ME!

         * @param vi DOCUMENT ME!

         *

         * @return true si la vista existe ya y false si la vista no existe

         *

         * @throws SingletonDialogAlreadyShownException DOCUMENT ME!

         */

        public boolean registerView(Class viewClass, Object model, ViewInfo vi) {

                //Se comprueba si la vista est? siendo mostrada

                SingletonViewInfo svi = new SingletonViewInfo(viewClass, model);

                if (contentViewInfo.containsKey(svi)) {

                        if (vi.isModal()) {

                                throw new SingletonDialogAlreadyShownException();

                        }

                        vi.setViewInfo((ViewInfo)contentViewInfo.get(svi));

                        return true;

                } else {

                        //La vista singleton no estaba mostrada

                        //Se asocia el modelo con la vista

                        contentViewInfo.put(svi, vi);

                        return false;

                }

        }

        public void openSingletonView(SingletonView sv, JComponent frame){

                SingletonViewInfo svi = new SingletonViewInfo(sv.getClass(), sv.getViewModel());

                contentFrame.put(svi, frame);

        }

        public boolean contains(SingletonView sv){

                SingletonViewInfo svi = new SingletonViewInfo(sv.getClass(), sv.getViewModel());

                return contentFrame.containsKey(svi);

        }

        /**

         * DOCUMENT ME!

         *

         * @param s

         */

        public void closeView(SingletonView s) {

                SingletonViewInfo svi = new SingletonViewInfo(s.getClass(), s.getViewModel());

                ViewInfo viewInfo = (ViewInfo) contentViewInfo.get(svi);

                JInternalFrame c = (JInternalFrame) contentFrame.get(svi); 

                viewInfo.setWidth(c.getWidth());

                viewInfo.setHeight(c.getHeight());

                viewInfo.setX(c.getX());

                viewInfo.setY(c.getY());

                contentFrame.remove(svi);

        }

        /**

         * Representa una vista singleton manteniendo el modelo y la clase de la

         * vista que lo muestra

         *

         * @author Fernando Gonz?lez Cort?s

         */

        public class SingletonViewInfo {

                public int id;

                /** Clase de la vista */

                public Class clase;

                /** Modelo que representa la vista */

                public Object modelo;

                /**

                 * Creates a new SingletonView object.

                 *

                 * @param clase Clase de la vista

                 * @param modelo Modelo que representa la vista

                 */

                public SingletonViewInfo(Class clase, Object modelo) {

                        this.clase = clase;

                        this.modelo = modelo;

                        this.id = singletonViewInfoID;

                        singletonViewInfoID++;

                }

                /*

                 * @see java.lang.Object#equals(java.lang.Object)

                 *

                public boolean equals(Object obj) {

                        if (obj.getClass() != SingletonViewInfo.class) {

                                throw new IllegalArgumentException();

                        }

                        SingletonViewInfo s = (SingletonViewInfo) obj;

                        if ((clase == s.clase) && (modelo == s.modelo)) {

                                return true;

                        } else {

                                return false;

                        }

                }*/

        }

        /**

         * DOCUMENT ME!

         *

         * @author $author$

         * @version $Revision: 1836 $

         */

        public class SingletonViewInfoComparator implements Comparator {

                /**

                 * @see java.util.Comparator#compare(java.lang.Object,

                 *                 java.lang.Object)

                 */

                public int compare(Object o1, Object o2) {

                        try{

                        SingletonViewInfo s1 = (SingletonViewInfo) o1;

                        SingletonViewInfo s2 = (SingletonViewInfo) o2;

                        if ((s1.clase.getName().equals(s2.clase.getName())) &&

                                        (s1.modelo == s2.modelo)) {

                                return 0;

                        } else {

                                return (s1.id < s2.id)?-1:1;

                        }

                        }catch(ClassCastException e){

                                e.printStackTrace();

                                return 0;

                        }

                }

        }

        private JInternalFrame getFrame(SingletonViewInfo svi){

                ViewInfo vi = (ViewInfo) contentViewInfo.get(svi);

                return (JInternalFrame) contentFrame.get(svi);

        }

        public JInternalFrame getFrame(Class viewClass, Object model){

                SingletonViewInfo svi = new SingletonViewInfo(viewClass, model);

                return getFrame(svi);

        }

        /**

         * @param model

         * @return

         */

        public JInternalFrame[] getFrames(Object model) {

                ArrayList ret = new ArrayList();

                Iterator keys = contentFrame.keySet().iterator();

                while (keys.hasNext()) {

                        SingletonViewInfo svi = (SingletonViewInfo) keys.next();

                        if (svi.modelo == model){

                                ret.add(contentFrame.get(svi));

                        }

                }

                return (JInternalFrame[]) ret.toArray(new JInternalFrame[0]);

        }

        /**

         * @param view

         * @return

         */

        public JInternalFrame getFrame(SingletonView sv) {

                SingletonViewInfo svi = new SingletonViewInfo(sv.getClass(), sv.getViewModel());

                return getFrame(svi);

        }

        /**

         * @param sv

         * @param i

         */

        public void setX(SingletonView sv, int x) {

                JInternalFrame o = (JInternalFrame) contentFrame.get(new SingletonViewInfo(sv.getClass(), sv.getViewModel()));

        if (o == null) return;

        o.setLocation(x, o.getY());

        }

        /**

         * @param sv

         * @param i

         */

        public void setY(SingletonView sv, int y) {

                JInternalFrame o = (JInternalFrame) contentFrame.get(new SingletonViewInfo(sv.getClass(), sv.getViewModel()));

        if (o == null) return;

        o.setLocation(o.getX(), y);

        }

        /**

         * @param sv

         * @param i

         */

        public void setHeight(SingletonView sv, int height) {

                JInternalFrame o = (JInternalFrame) contentFrame.get(new SingletonViewInfo(sv.getClass(), sv.getViewModel()));

        if (o == null) return;

        o.setSize(o.getWidth(), height);

        }

        /**

         * @param sv

         * @param i

         */

        public void setWidth(SingletonView sv, int width) {

                JInternalFrame o = (JInternalFrame) contentFrame.get(new SingletonViewInfo(sv.getClass(), sv.getViewModel()));

        if (o == null) return;

        o.setSize(width, o.getHeight());

        }

        /**

         * @param sv

         * @param string

         */

        public void setTitle(SingletonView sv, String title) {

                JInternalFrame o = (JInternalFrame) contentFrame.get(new SingletonViewInfo(sv.getClass(), sv.getViewModel()));

        if (o == null) return;

        o.setTitle(title);

        }

}