| 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.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 snappers = new ArrayList();

	private static boolean applySnappers=true;

    private static TreeMap selected = new TreeMap(new Comparator() {

        public int compare(Object o1, Object o2) {

            if ((o1 != null) && (o2 != null)) {

                ISnapper v2 = (ISnapper) o2;

                ISnapper v1 = (ISnapper) o1;

                if (v1.getPriority()>v2.getPriority())

                	return -1;

                else if (v1.getPriority()<v2.getPriority())

            		return 1;

                else if (v1.getClass() == v2.getClass()) {

                	return 0;

                }else

                	return -1;

            }

            return 0;

        }

    }); // Para poder ordenar

    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 getSnappers() {

        ArrayList snappers = new ArrayList();

        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) {

                e.printStackTrace();

            } catch (IllegalAccessException e) {

                e.printStackTrace();

            }

        }

        return snappers;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public static ArrayList getActivesSnappers() {

       if (!applySnappers)

    	   return new ArrayList();

       return new ArrayList(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_" + nameClass, b.booleanValue());

            if (b.booleanValue())

            	selected.put(snp, b);

        }

        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() {

        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_" + nameClass, false);

            if (select)

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

        }

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

        applySnappers=true;

        snapConfig.setApplySnappers(applySnappers);

        snapConfig.selectSnappers(selected);

    }

    /**

     * DOCUMENT ME!

     */

    public void initializeDefaults() {

        initializeValues();

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public ImageIcon getIcon() {

        return icon;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean isValueChanged() {

    	return super.hasChanged();

    }

}