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svn-gvsig-desktop / trunk / applications / appgvSIG / src / com / iver / cit / gvsig / UndoTableExtension.java @ 28940

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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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 *
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 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
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 *
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 * For more information, contact:
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 *
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 *  Generalitat Valenciana
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 *   Conselleria d'Infraestructures i Transport
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 *   Av. Blasco Ib??ez, 50
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 *   46010 VALENCIA
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 *   SPAIN
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 *
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 *      +34 963862235
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 *   gvsig@gva.es
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 *      www.gvsig.gva.es
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 *
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 *    or
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 *
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 *   IVER T.I. S.A
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 *   Salamanca 50
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 *   46005 Valencia
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 *   Spain
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 *
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 *   +34 963163400
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 *   dac@iver.es
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 */
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package com.iver.cit.gvsig;
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException;
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import com.iver.andami.PluginServices;
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import com.iver.andami.messages.NotificationManager;
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import com.iver.andami.plugins.Extension;
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import com.iver.cit.gvsig.exceptions.commands.EditionCommandException;
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import com.iver.cit.gvsig.fmap.edition.IEditableSource;
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import com.iver.cit.gvsig.project.documents.table.gui.Table;
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/**
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 * Extensi?n encargada de gestionar el rehacer un comando anteriormente
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 * deshecho.
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 *
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 * @author Vicente Caballero Navarro
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 */
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public class UndoTableExtension extends Extension {
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        /**
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         * @see com.iver.andami.plugins.IExtension#initialize()
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         */
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        public void initialize() {
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                registerIcons();
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        }
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        private void registerIcons(){
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                PluginServices.getIconTheme().registerDefault(
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                                "table-undo",
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                                this.getClass().getClassLoader().getResource("images/Undo.png")
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                        );
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        }
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        /**
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         * @see com.iver.andami.plugins.IExtension#execute(java.lang.String)
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         */
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        public void execute(String s) {
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                Table tabla = (Table) PluginServices.getMDIManager().getActiveWindow();
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                if (s.compareTo("UNDO") == 0) {
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                        if (tabla.isEditing()){
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                                IEditableSource vea=tabla.getModel().getModelo();
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                                try {
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                                        vea.undo();
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                                vea.getSelection().clear();
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                                } catch (EditionCommandException e) {
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                                        NotificationManager.addError("Error accediendo a los Drivers para deshacer un comando",
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                                                        e);
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                                }catch (ReadDriverException e) {
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                                        NotificationManager.addError("Error accediendo a los Drivers para deshacer un comando",
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                                                        e);
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                                }
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                        }
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                        tabla.getModel().setModified(true);
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                }
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        }
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        /**
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         * @see com.iver.andami.plugins.IExtension#isEnabled()
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         */
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        public boolean isEnabled() {
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                Table tabla = (Table) PluginServices.getMDIManager().getActiveWindow();
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                //MapControl mapControl = (MapControl) vista.getMapControl();
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                //FLayers layers=mapControl.getMapContext().getLayers();
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                //for (int i=0;i<layers.getLayersCount();i++){
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                        if (tabla.getModel().getModelo() instanceof IEditableSource && tabla.isEditing()){
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                                IEditableSource vea=(IEditableSource)tabla.getModel().getModelo();
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                                if (vea==null)return false;
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                                return vea.getCommandRecord().moreUndoCommands();
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                        }
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                //}
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                return false;
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        }
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        /**
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         * @see com.iver.andami.plugins.IExtension#isVisible()
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         */
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        public boolean isVisible() {
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                com.iver.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager()
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                                                                                                                         .getActiveWindow();
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                if (f == null) {
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                        return false;
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                }
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                if (f instanceof Table) {
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                        return true;
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                } else {
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                        return false;
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                }
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        }
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}