Application: gvSIG desktop » gvSIG geoprocess

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

 *

 * Copyright (C) 2010 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.

 */

package org.gvsig.sextante.app.algorithm.reproject;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.ComboBoxModel;

import javax.swing.DefaultComboBoxModel;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JLabel;

import javax.swing.JPanel;

import es.unex.sextante.core.GeoAlgorithm;

import es.unex.sextante.core.ObjectAndDescription;

import es.unex.sextante.core.OutputObjectsSet;

import es.unex.sextante.core.ParametersSet;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IVectorLayer;

import es.unex.sextante.gui.algorithm.GeoAlgorithmParametersPanel;

import es.unex.sextante.gui.core.SextanteGUI;

import es.unex.sextante.outputs.Output;

import org.cresques.cts.IProjection;

import org.gvsig.app.gui.panels.CRSSelectPanel;

import org.gvsig.fmap.crs.CRSFactory;

import org.gvsig.geoprocess.core.CompositeSourceOutputChannel;

import org.gvsig.geoprocess.gui.AlgorithmOutputPanel;

/**

 * Panel for reproject algorithm

 * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>

 */

public class ReprojectParametersPanel extends GeoAlgorithmParametersPanel implements ActionListener {

        private static final long                serialVersionUID       = 1L;

        private GeoAlgorithm                     m_Algorithm            = null;

        private JComboBox                        layersCombo            = null;

        private JCheckBox                        selectionOnly          = null;

        //private AlgorithmOutputPanel             output                 = null;

        private JLabel                           projLabel              = null;

        private CRSSelectPanel                   projectionSrcSelector  = null;

        private IProjection                      targetLayerProjection  = null;

        private AlgorithmOutputPanel             algorithmOutputPanel   = null;

        public ReprojectParametersPanel() {

                super();

        }

    public void init(GeoAlgorithm algorithm) {

            m_Algorithm = algorithm;

            initGUI();

            init();

    }

        private void initGUI() {

                GridBagLayout gbl = new GridBagLayout();

                this.setLayout(gbl);

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.gridx = 0;

                gbc.gridy = 0;

                gbc.insets = new Insets(15, 5, 15, 0);

                this.add(getComboPanel(Sextante.getText("Input_layer"), getLayersCombo()), gbc);

                gbc.gridy = 1;

                gbc.insets = new Insets(0, 5, 15, 0);

                this.add(getSelectionCheck(), gbc);

                gbc.gridy = 2;

                this.add(getCurrentProjLabel(), gbc);

                gbc.gridy = 3;

                this.add(getProjectionSelector(), gbc);

                gbc.gridy = 4;

                gbc.fill = GridBagConstraints.BOTH;

                gbc.weighty = 1.0;

                gbc.weightx = 1.0;

                this.add(new JPanel(), gbc);

                gbc.gridy = 5;

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weighty = 0.0;

                this.add(getAlgorithmOutputPanel(), gbc);

        }

        /**

         * Gets the output panel

         * @return

         */

        private AlgorithmOutputPanel getAlgorithmOutputPanel() {

                if(algorithmOutputPanel == null)

                    algorithmOutputPanel = new AlgorithmOutputPanel();

                return algorithmOutputPanel;

        }

        /**

         * Gets a new JPanel with the text and JComboBox 

         * @param text

         * @param combo

         * @return

         */

        public JPanel getComboPanel(String text, JComboBox combo) {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.NONE;

                gbc.weightx = 0;

                gbc.gridx = 0;

                gbc.insets = new Insets(0, 2, 0, 50);

                JLabel label = new JLabel(text);

                label.setPreferredSize(new Dimension(80, 18));

                panel.add(label, gbc);

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.gridx = 1;

                gbc.anchor = GridBagConstraints.EAST;

                gbc.insets = new Insets(0, 2, 0, 0);

                panel.add(combo, gbc);

                return panel;

        }

        /**

         * Gets a ComboBox

         * @return

         */

        public JComboBox getLayersCombo() {

                if(layersCombo == null) {

                        layersCombo = new JComboBox();

                        layersCombo.setPreferredSize(new Dimension(0, 18));

                        ComboBoxModel comboModel = new DefaultComboBoxModel(getLayerList());

                        layersCombo.setModel(comboModel);

                        layersCombo.addActionListener(this);

                }

                return layersCombo;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getSelectionCheck() {

                if(selectionOnly == null) {

                        selectionOnly = new JCheckBox(Sextante.getText("Selected_geometries"));

                }

                return selectionOnly;

        }

        /**

         * Panel with the projection selector

         * @return

         */

        private CRSSelectPanel getProjectionSelector() {

                if (projectionSrcSelector == null) {

                        targetLayerProjection = CRSFactory.getCRS("EPSG:23030");

                        projectionSrcSelector = CRSSelectPanel.getPanel(targetLayerProjection);

                        projectionSrcSelector.getJLabel().setText(Sextante.getText("Proyeccion_Destino"));

                        projectionSrcSelector.setPreferredSize(new java.awt.Dimension(330,35));

                        projectionSrcSelector.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        if (projectionSrcSelector.isOkPressed()) {

                                                targetLayerProjection = projectionSrcSelector.getCurProj();

                                        }

                                }

                        });

                }

                projectionSrcSelector.setTransPanelActive(true);

                return projectionSrcSelector;

        }

        /**

         * Gets the label with the current projection

         * @return

         */

        public JLabel getCurrentProjLabel() {

                if(projLabel == null)

                        projLabel = new JLabel();

                return projLabel;

        }

        //------------------------------------------------------------

        /**

         * Initialize actions

         */

        private void init() {

                IVectorLayer layer = getSelectedVectorLayer();

                IProjection currentProj = (IProjection)layer.getCRS();

                getCurrentProjLabel().setText("Proj: " + currentProj.getAbrev());

        }

        /*

         * (non-Javadoc)

         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

         */

        public void actionPerformed(ActionEvent e) {

                if(e.getSource() ==  getLayersCombo()) {

                }

        }

        @Override

    public void assignParameters() {

                try {

                        ParametersSet params = m_Algorithm.getParameters();

                        params.getParameter(ReprojectAlgorithm.LAYER).setParameterValue(getSelectedVectorLayer());

                        params.getParameter(ReprojectAlgorithm.SELECTED_GEOM).setParameterValue(getSelectionCheck().isSelected());

                        String proj = getProjectionSelector().getCurProj().getAbrev();

                        params.getParameter(ReprojectAlgorithm.DST_PROJECTION).setParameterValue(proj);

                        OutputObjectsSet ooSet = m_Algorithm.getOutputObjects();

                        Output out = ooSet.getOutput(ReprojectAlgorithm.RESULT);

                        out.setOutputChannel(new CompositeSourceOutputChannel(getAlgorithmOutputPanel().getOutputParameters()));

                } catch (Exception e) {

                        Sextante.addErrorToLog(e);

                }

        }

        @Override

        public void setOutputValue(String arg0, String arg1) {

        }

        @Override

        public void setParameterValue(String arg0, String arg1) {

        }

        /**

         * Gets the input layer list

         * @return

         */

        private ObjectAndDescription[] getLayerList() {

                IVectorLayer[] layers = SextanteGUI.getInputFactory()

                                        .getVectorLayers(IVectorLayer.SHAPE_TYPE_WRONG);

                ObjectAndDescription[] oad = new ObjectAndDescription[layers.length];

                for (int i = 0; i < layers.length; i++)

                        oad[i] = new ObjectAndDescription(layers[i].getName(), layers[i]);

                return oad;

        }

        /**

         * Gets the selected vector layer in the JComboBox

         * @return

         */

        private IVectorLayer getSelectedVectorLayer() {

                if(layersCombo.getSelectedItem() != null)

                        return (IVectorLayer)((ObjectAndDescription)layersCombo.getSelectedItem()).getObject();

                return null;

        }

        /**

         * Gets the field list of the selected layer

         * @return

         */

        public String[] getFieldList() {

                IVectorLayer layer = getSelectedVectorLayer();

                String[] data = new String[layer.getFieldCount()];

                for (int i = 0; i < layer.getFieldCount(); i++) 

                        data[i] = layer.getFieldName(i);

                return data;

        }

}