Application: gvSIG desktop

package org.gvsig.app.project.documents.view.gui;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.util.ArrayList;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JSeparator;

import javax.swing.JTable;

import javax.swing.JTextField;

import javax.swing.border.EmptyBorder;

import javax.swing.border.LineBorder;

import javax.swing.table.AbstractTableModel;

import javax.swing.table.TableModel;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.project.documents.view.ViewDocument;

import org.gvsig.fmap.geom.primitive.Envelope;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.mapcontext.MapContext;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.FLayers;

import org.gvsig.fmap.mapcontext.layers.SingleLayerIterator;

import org.gvsig.fmap.mapcontext.layers.SpatialCache;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

import org.gvsig.fmap.mapcontrol.MapControlLocator;

import org.gvsig.fmap.mapcontrol.MapControlManager;

import org.gvsig.propertypage.PropertiesPage;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

public class ViewSnappingPropertiesPage extends JPanel implements PropertiesPage {

    /**

     *

     */

    private static final long serialVersionUID = 3534295787643266933L;

    private static final Logger logger =

        LoggerFactory.getLogger(ViewSnappingPropertiesPage.class);

    private JLabel jLabel = null;

    private JTextField jTxtTolerance = null;

    private JLabel jLabel1 = null;

    private JSeparator jSeparator = null;

    private JScrollPane jScrollPane = null;

    private JTable jTableSnapping = null;

    private JLabel jLabelCache = null;

    private JPanel jPanelNord = null;

    private JPanel jPanelCache = null;

    private boolean changed = false;

    private FLayers layers;

    private MapContext mapContext;

    private ViewDocument view;

    private boolean isAcceppted;

    private static MapControlManager mapControlManager = MapControlLocator.getMapControlManager();

    private class MyRecord {

        public Boolean bSelec = new Boolean(false);

        public String layerName;

        public Integer maxFeat = new Integer(1000);

    }

    private class MyTableModel extends AbstractTableModel {

        private ArrayList records = new ArrayList();

        public MyTableModel(FLayers layers) {

            addLayer(layers);

        }

        private void addLayer(FLayer lyr) {

            if (lyr instanceof FLayers) {

                FLayers lyrGroup = (FLayers) lyr;

                for (int i = 0; i < lyrGroup.getLayersCount(); i++) {

                    FLayer lyr2 = lyrGroup.getLayer(i);

                    addLayer(lyr2);

                }

            } else {

                if (lyr instanceof FLyrVect) {

                    FLyrVect aux = (FLyrVect) lyr;

                    MyRecord rec = new MyRecord();

                    rec.layerName = lyr.getName();

                    SpatialCache spatialCache = aux.getSpatialCache();

                    rec.bSelec = new Boolean(spatialCache.isEnabled());

                    rec.maxFeat = new Integer(spatialCache.getMaxFeatures());

                    records.add(rec);

                }

            }

        }

        public int getColumnCount() {

            return 3;

        }

        public int getRowCount() {

            return records.size();

        }

        public Object getValueAt(int rowIndex, int columnIndex) {

            MyRecord rec = (MyRecord) records.get(rowIndex);

            if (columnIndex == 0)

                return rec.bSelec;

            if (columnIndex == 1)

                return rec.layerName;

            if (columnIndex == 2)

                return rec.maxFeat;

            return null;

        }

        public Class getColumnClass(int c) {

            if (c == 0)

                return Boolean.class;

            if (c == 2)

                return Integer.class;

            return String.class;

        }

        public void setValueAt(Object aValue, int rowIndex, int columnIndex) {

            MyRecord rec = (MyRecord) records.get(rowIndex);

            if (columnIndex == 0)

                rec.bSelec = (Boolean) aValue;

            if (columnIndex == 2) {

                if (aValue != null)

                    rec.maxFeat = (Integer) aValue;

                else

                    rec.maxFeat = new Integer(0);

            }

            changed  =true;

            super.setValueAt(aValue, rowIndex, columnIndex);

        }

        public boolean isCellEditable(int rowIndex, int columnIndex) {

            if (columnIndex == 0)

                return true;

            if (columnIndex == 2)

                return true;

            return false;

        }

        public String getColumnName(int column) {

            if (column == 0)

                return PluginServices.getText(this, "Selected");

            if (column == 1)

                return PluginServices.getText(this, "LayerName");

            if (column == 2)

                return PluginServices.getText(this, "MaxFeaturesEditionCache");

            return "You shouldn't reach this point";

        }

    }

    public ViewSnappingPropertiesPage(ViewDocument view) {

        this.view = view;

        initComponents();

        // addLayer(layers);

        this.mapContext = view.getMapContext();

        this.layers = mapContext.getLayers();

        MyTableModel tm = new MyTableModel(layers);

        getJTableSnapping().setModel(tm);

        getJTxtTolerance().setText(String.valueOf(mapControlManager.getTolerance()));

    }

    public boolean whenAccept() {

        isAcceppted = true;

        return whenApply();

    }

    public boolean whenApply() {

        TableModel tm = getJTableSnapping().getModel();

        ArrayList layersToSnap = new ArrayList();

        for (int i = 0; i < tm.getRowCount(); i++) {

            String layerName = (String) tm.getValueAt(i, 1);

            FLyrVect lyr = (FLyrVect) layers.getLayer(layerName);

            Boolean bUseCache = (Boolean) tm.getValueAt(i, 0);

            Integer maxFeat = (Integer) tm.getValueAt(i, 2);

            // Decidimos si vamos a habilitar el spatialCache DESPUES, justo

            // antes de renderizar.

            // Necesitamos un m?todo que explore las capas en edici?n y mire las

            // capas sobre las

            // que se necestia el cache. Aqu? lo que hacemos es a?adir las

            // seleccionadas a la

            // lista de capas asociadas al snapping de los temas activos en

            // edici?n.

            // Lo del m?ximo de features en cach?, tiene que ser para cada capa

            // distinto. Pero no

            // puedes "chafar" el que ya hay, porque puedes fastidiar a otra

            // capa en edici?n.

            // Como m?ximo, lo que podemos hacer es que si es mayor al que hay,

            // lo subimos. Si

            // se solicita uno menor, lo dejamos como est?.

            // Otra opci?n ser?a no hacer caso de esto para cada capa, y ponerlo

            // de forma global.

            // lyr.setSpatialCacheEnabled(bUseCache.booleanValue());

            lyr.setMaxFeaturesInEditionCache(maxFeat.intValue());

            if (bUseCache.booleanValue())

                layersToSnap.add(lyr);

        }

        SingleLayerIterator it = new SingleLayerIterator(layers);

        while (it.hasNext()) {

            FLayer aux = it.next();

            if (aux instanceof FLyrVect)

            {

                FLyrVect lyrVect = (FLyrVect) aux;

                // Inicializamos todas

                lyrVect.getSpatialCache().setEnabled(false);

                if (aux.isActive()) {

                    if (aux.isEditing()) {

                        // Sobre la capa en edici?n siempre se puede hacer snapping

                        // Esto no es correcto, el usuario puede preferir no hacer snapping sobre la capa en edici?n

//                        lyrVect.getSpatialCache().setEnabled(true);

                        lyrVect.getMapContext().setLayersToSnap(layersToSnap);

                    }

                }

            }

        } // while

        it.rewind();

        /*

         * Iteramos por las capas en edici?n y marcamos aquellas capas que

         * necesitan trabajar con el cache habilitado

         */

        while (it.hasNext()) {

            FLayer aux = it.next();

            if (aux.isEditing())

                if (aux instanceof FLyrVect) {

                    MapContext mx=aux.getMapContext();

                        for (int i=0; i<mx.getLayersToSnap().size(); i++)

                        {

                            FLyrVect lyrVect = (FLyrVect) mx.getLayersToSnap().get(i);

                            lyrVect.getSpatialCache().setEnabled(true);

                        }

                }

        } // while

        try{

            mapControlManager.setTolerance(Integer.parseInt(getJTxtTolerance().getText()));

        }catch (Exception e) {

            logger.error(PluginServices.getText(this, "tolerancia_incorrecta"),e);

//            throw new StoreException(PluginServices.getText(this, "tolerancia_incorrecta"),e);

        }

        /*

         * I think "mapContext.invalidate()" does not work as expected.

         * Some layers are not actually redrawn.

         */

        forceRepaint(mapContext);

        return true;

    }

    /**

     * Not very elegant method to force repaint of view.

     * @param mco

     */

    private void forceRepaint(MapContext mco) {

        ViewPort vp = mco.getViewPort();

        Envelope env = vp.getAdjustedEnvelope();

        if (env != null) {

            try {

                env = (Envelope) env.clone();

            } catch (CloneNotSupportedException e) {

                logger.error("Unable to clone envelope: ", e);

            }

            Point uc = env.getUpperCorner();

            double upperx = uc.getX();

            double inc_len = 0.000001 * env.getLength(0);

            uc.setX(upperx + inc_len);

            vp.setEnvelope(env);

        }

    }

   public boolean whenCancel() {

        isAcceppted = false;

        return true;

    }

    public String getTitle() {

        return PluginServices.getText(this, "Snapping");

        }

    public int getPriority() {

        return 1000;

    }

    public JComponent asJComponent() {

        return this;

    }

    private void initComponents() {

        BorderLayout layout = new BorderLayout();

        layout.setHgap(20);

                I18nManager i18nManager = ToolsLocator.getI18nManager();

        this.setLayout(layout);

        jLabelCache = new JLabel();

        jLabelCache.setText(PluginServices.getText(this, "capas_edition_cache"));

        jLabelCache.setHorizontalTextPosition(javax.swing.SwingConstants.LEFT);

        jLabelCache.setPreferredSize(new java.awt.Dimension(500,20));

        jLabelCache.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);

        jLabel1 = new JLabel();

        jLabel1.setText(i18nManager.getTranslation("pixels"));

        jLabel1.setBounds(new java.awt.Rectangle(195, 8, 207, 15));

        jLabel1.setPreferredSize(new java.awt.Dimension(28, 20));

        jLabel1.setName("jLabel1");

        jLabel = new JLabel();

        jLabel.setText(i18nManager.getTranslation("snap_tolerance"));

        jLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);

        jLabel.setName("jLabel");

        jLabel.setBounds(new java.awt.Rectangle(15, 8, 122, 15));

        jLabel.setPreferredSize(new java.awt.Dimension(28, 20));

        jLabel.setHorizontalTextPosition(javax.swing.SwingConstants.LEFT);

        this.setSize(new java.awt.Dimension(502,288));

        this.setPreferredSize(this.getSize());

        this.add(getJPanelNord(), BorderLayout.NORTH);

        this.add(getJPanelCache(), BorderLayout.CENTER);

    }

    /**

     * This method initializes jPanelNord

     *

     * @return javax.swing.JPanel

     */

    private JPanel getJPanelNord() {

        if (jPanelNord == null) {

            jPanelNord = new JPanel();

            jPanelNord.setLayout(null);

            jPanelNord

                    .setComponentOrientation(java.awt.ComponentOrientation.UNKNOWN);

            jPanelNord.setPreferredSize(new java.awt.Dimension(30, 30));

            jPanelNord.add(jLabel, null);

            jPanelNord.add(getJTxtTolerance(), null);

            jPanelNord.add(jLabel1, null);

        }

        return jPanelNord;

    }

    /**

     * This method initializes jPanelCache

     *

     * @return javax.swing.JPanel

     */

    private JPanel getJPanelCache() {

        if (jPanelCache == null) {

            jPanelCache = new JPanel();

            jPanelCache.setLayout(new BorderLayout());

            jPanelCache.setBorder(new EmptyBorder(10, 10, 10, 10));

            jPanelCache.add(jLabelCache, java.awt.BorderLayout.NORTH);

            jPanelCache.add(getJScrollPane(), java.awt.BorderLayout.CENTER);

        }

        return jPanelCache;

    }

    /**

     * This method initializes jTxtTolerance

     *

     * @return javax.swing.JTextField

     */

    private JTextField getJTxtTolerance() {

        if (jTxtTolerance == null) {

            jTxtTolerance = new JTextField();

            jTxtTolerance.setPreferredSize(new java.awt.Dimension(28, 20));

            jTxtTolerance.setName("jTxtTolerance");

            jTxtTolerance.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

            jTxtTolerance.setText("4");

            jTxtTolerance.setBounds(new java.awt.Rectangle(142, 8, 39, 15));

            jTxtTolerance.addKeyListener(new KeyListener() {

                public void keyPressed(KeyEvent e) { changed = true; }

                public void keyReleased(KeyEvent e) { changed = true; }

                public void keyTyped(KeyEvent e){ changed = true; }

            });

        }

        return jTxtTolerance;

    }

    /**

     * This method initializes jScrollPane

     *

     * @return javax.swing.JScrollPane

     */

    private JScrollPane getJScrollPane() {

        if (jScrollPane == null) {

            jScrollPane = new JScrollPane();

            jScrollPane.setBorder(new LineBorder(Color.GRAY));

            jScrollPane.setPreferredSize(new java.awt.Dimension(500,419));

            jScrollPane.setViewportView(getJTableSnapping());

        }

        return jScrollPane;

    }

    /**

     * This method initializes jTableSnapping

     *

     * @return javax.swing.JTable

     */

    private JTable getJTableSnapping() {

        if (jTableSnapping == null) {

            jTableSnapping = new JTable();

            jTableSnapping.addKeyListener(new KeyListener() {

                public void keyPressed(KeyEvent e) { changed = true; }

                public void keyReleased(KeyEvent e) { changed = true; }

                public void keyTyped(KeyEvent e){ changed = true; }

            });

        }

        return jTableSnapping;

    }

    /**

     * @see org.gvsig.andami.ui.mdiManager.SingletonWindow#getWindowModel()

     */

    public Object getWindowModel() {

        return view;

    }

    public boolean isAcceppted() {

        return isAcceppted;

    }

}