root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / commands / implementation / SelectionCommandSelectAll.java @ 24496
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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 Gobernment (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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/*
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* AUTHORS (In addition to CIT):
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* 2008 {DiSiD Technologies} {Implement data selection}
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*/
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package org.gvsig.fmap.dal.feature.impl.commands.implementation; |
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import org.gvsig.fmap.dal.exceptions.DataException; |
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import org.gvsig.fmap.dal.feature.FeatureReferenceSelection; |
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import org.gvsig.fmap.dal.feature.exceptions.SelectionStateException; |
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import org.gvsig.fmap.dal.feature.impl.commands.AbstractCommand; |
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import org.gvsig.tools.persistence.PersistenceException; |
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import org.gvsig.tools.persistence.PersistentState; |
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/**
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* Command to allow undo and redo over a select or deselect ALL operation
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* performed on a selection.
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*
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* @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>
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*/
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public class SelectionCommandSelectAll extends AbstractCommand { |
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private final FeatureReferenceSelection selection; |
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private final boolean allSelected; |
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private PersistentState state;
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public SelectionCommandSelectAll(FeatureReferenceSelection selection,
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boolean allSelected) throws SelectionStateException { |
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this.selection = selection;
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this.allSelected = allSelected;
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try {
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state = selection.getState(); |
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} catch (PersistenceException ex) {
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throw new SelectionStateException(ex); |
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} |
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} |
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public void execute() { |
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// Nothing to do
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} |
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public String getType() { |
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return allSelected ? "selectionSelectAll" : "selectionDeselectAll"; |
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} |
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public void undo() throws DataException { |
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if (state != null) { |
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try {
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selection.setState(state); |
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} catch (PersistenceException ex) {
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throw new SelectionStateException(ex); |
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} |
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} |
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} |
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public void redo() throws DataException { |
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// Re-Obtain the state, just in case
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try {
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state = selection.getState(); |
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} catch (PersistenceException ex) {
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throw new SelectionStateException(ex); |
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} |
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if (allSelected) {
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selection.selectAll(); |
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} else {
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selection.deselectAll(); |
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} |
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} |
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} |