| gvSIG desktop 1

package com.iver.cit.gvsig.gui.preferences;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.Iterator;

import java.util.TreeMap;

import java.util.prefs.Preferences;

import javax.swing.ImageIcon;

import javax.swing.JPanel;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.preferences.AbstractPreferencePage;

import com.iver.andami.preferences.StoreException;

import com.iver.cit.gvsig.project.documents.view.snapping.ISnapper;

import com.iver.cit.gvsig.project.documents.view.snapping.gui.SnapConfig;

import com.iver.utiles.extensionPoints.ExtensionPoint;

import com.iver.utiles.extensionPoints.ExtensionPoints;

import com.iver.utiles.extensionPoints.ExtensionPointsSingleton;

/**

 * Preferencias de snapping.

 *

 * @author Vicente Caballero Navarro

 */

public class SnapConfigPage extends AbstractPreferencePage {

    private static Preferences prefs = Preferences.userRoot().node("snappers");

    private ImageIcon icon;

    private SnapConfig snapConfig;

    private ArrayList<ISnapper> snappers = new ArrayList<ISnapper>();

        private static boolean applySnappers=true;

    @SuppressWarnings("unchecked")

        public static TreeMap<ISnapper,Boolean> selected = new TreeMap<ISnapper,Boolean>(new Comparator<ISnapper>(){

                public int compare(ISnapper o1, ISnapper o2) {

                        if (o1.getClass().equals(o2.getClass()))

                                return 0;

                        if (o1.getPriority()>o2.getPriority())

                                return 1;

                        else

                                return -1;

                }

        });

    static {

            new SnapConfigPage().initializeValues();

    }

    public SnapConfigPage() {

        super();

        icon = new ImageIcon(this.getClass().getClassLoader().getResource("images/Snapper.png"));

        snapConfig = new SnapConfig();

        snappers = getSnappers();

        snapConfig.setSnappers(snappers);

        addComponent(snapConfig);

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    private static ArrayList<ISnapper> getSnappers() {

        ArrayList<ISnapper> snappers = new ArrayList<ISnapper>();

        ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

        ExtensionPoint extensionPoint = (ExtensionPoint) extensionPoints.get(

                "Snapper");

        Iterator iterator = extensionPoint.keySet().iterator();

        while (iterator.hasNext()) {

            try {

                ISnapper snapper = (ISnapper) extensionPoint.create((String) iterator.next());

                snappers.add(snapper);

            } catch (InstantiationException e) {

                    NotificationManager.addError(e.getMessage(),e);

            } catch (IllegalAccessException e) {

                    NotificationManager.addError(e.getMessage(),e);

            }

        }

        return snappers;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public static ArrayList<ISnapper> getActivesSnappers() {

       if (!applySnappers)

               return new ArrayList<ISnapper>();

       return new ArrayList<ISnapper>(selected.keySet());

    }

    /**

     * DOCUMENT ME!

     *

     * @throws StoreException DOCUMENT ME!

     */

    public void storeValues() throws StoreException {

        selected.clear();

            for (int n = 0; n < snappers.size(); n++) {

            Boolean b = (Boolean) snapConfig.getTableModel().getValueAt(n, 0);

            ISnapper snp = (ISnapper) snappers.get(n);

            String nameClass=snp.getClass().getName();

            nameClass=nameClass.substring(nameClass.lastIndexOf('.'));

            prefs.putBoolean("snapper_activated" + nameClass, b.booleanValue());

            if (b.booleanValue())

                    selected.put(snp, b);

            prefs.putInt("snapper_priority"+ nameClass,snp.getPriority());

        }

        boolean b=snapConfig.applySnappers();

        prefs.putBoolean("apply-snappers",b);

        applySnappers=b;

    }

    /**

     * DOCUMENT ME!

     */

    public void setChangesApplied() {

            setChanged(false);

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public String getID() {

        return this.getClass().getName();

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public String getTitle() {

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

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public JPanel getPanel() {

        return this;

    }

    /**

     * DOCUMENT ME!

     */

    public void initializeValues() {

            if (prefs.get("apply-snappers", null) == null){

                    initializeDefaults();

            }

        for (int n = 0; n < snappers.size(); n++) {

            ISnapper snp = (ISnapper) snappers.get(n);

            String nameClass=snp.getClass().getName();

            nameClass=nameClass.substring(nameClass.lastIndexOf('.'));

            boolean select = prefs.getBoolean("snapper_activated" + nameClass, false);

            int priority = prefs.getInt("snapper_priority" + nameClass,3);

            snp.setPriority(priority);

            if (select)

                    selected.put(snp, new Boolean(select));

        }

        applySnappers = prefs.getBoolean("apply-snappers",true);

        snapConfig.setApplySnappers(applySnappers);

        snapConfig.selectSnappers(selected);

    }

    /**

     * DOCUMENT ME!

     */

    public void initializeDefaults() {

            for (int n = 0; n < snappers.size(); n++) {

            ISnapper snp = (ISnapper) snappers.get(n);

            String nameClass=snp.getClass().getName();

            nameClass=nameClass.substring(nameClass.lastIndexOf('.'));

            if (nameClass.equals(".FinalPointSnapper")){

                    selected.put(snp, new Boolean(true));

                    int priority = 1;

                    prefs.putInt("snapper_priority" + nameClass, priority);

                snp.setPriority(priority);

            }else if (nameClass.equals(".NearestPointSnapper")){

                    selected.put(snp, new Boolean(true));

                    int priority = 2;

                    prefs.putInt("snapper_priority" + nameClass, priority);

                snp.setPriority(priority);

            }else{

                    selected.put(snp, new Boolean(false));

                    int priority = 3;

                    prefs.putInt("snapper_priority" + nameClass, priority);

                snp.setPriority(priority);

            }

        }

        applySnappers = true;

        snapConfig.setApplySnappers(applySnappers);

        snapConfig.selectSnappers(selected);

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public ImageIcon getIcon() {

        return icon;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean isValueChanged() {

            return super.hasChanged();

    }

}