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svn-gvsig-desktop / branches / v2_0_0_prep / extensions / org.gvsig.app.document.table.app / org.gvsig.app.document.table.app.mainplugin / src / main / java / org / gvsig / app / extension / UndoTableExtension.java @ 36443

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/* gvSIG. Geographic Information System of the Valencian Government
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 *
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 * Copyright (C) 2007-2008 Infrastructures and Transports Department
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 * of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston, 
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 * MA  02110-1301, USA.
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 * 
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 */
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package org.gvsig.app.extension;
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import org.gvsig.andami.PluginServices;
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import org.gvsig.andami.messages.NotificationManager;
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import org.gvsig.andami.plugins.Extension;
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import org.gvsig.app.project.documents.table.gui.FeatureTableDocumentPanel;
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import org.gvsig.fmap.dal.exception.DataException;
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import org.gvsig.fmap.dal.feature.FeatureStore;
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import org.gvsig.tools.undo.UndoException;
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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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    private FeatureTableDocumentPanel table;
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    /**
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     * @see org.gvsig.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("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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     * @see org.gvsig.andami.plugins.IExtension#execute(java.lang.String)
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     */
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    public void execute(String s) {
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        if (s.compareTo("UNDO") == 0) {
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            if (table.getModel().getStore().isEditing()) {
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                FeatureStore fs = table.getModel().getStore();
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                try {
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                    fs.undo();
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                    fs.getFeatureSelection().deselectAll();
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                } catch (DataException e) {
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                    NotificationManager.addError(e);
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                } catch (UndoException e) {
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                    NotificationManager.addError(e);
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                }
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            }
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            table.getModel().setModified(true);
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        }
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    }
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    /**
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     * @see org.gvsig.andami.plugins.IExtension#isEnabled()
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     */
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    public boolean isEnabled() {
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        FeatureStore fs = table.getModel().getStore();
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        if (fs != null && fs.isEditing()) {
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            return fs.canUndo();
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        }
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        return false;
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    }
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    /**
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     * @see org.gvsig.andami.plugins.IExtension#isVisible()
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     */
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    public boolean isVisible() {
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        org.gvsig.andami.ui.mdiManager.IWindow f =
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            PluginServices.getMDIManager().getActiveWindow();
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        if (f != null && f instanceof FeatureTableDocumentPanel) {
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            table = (FeatureTableDocumentPanel) f;
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            return true;
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        }
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        return false;
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    }
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}