Application: gvSIG desktop » gvSIG data provider for WFS

package org.gvsig.wfs.gui.panels.fieldstree;

import java.awt.Component;

import java.awt.event.MouseEvent;

import java.util.EventObject;

import javax.swing.AbstractCellEditor;

import javax.swing.JCheckBox;

import javax.swing.JTree;

import javax.swing.event.ChangeEvent;

import javax.swing.tree.TreeCellEditor;

import javax.swing.tree.TreePath;

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

 *

 * Copyright (C) 2004 IVER T.I. and 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id$

 * $Log$

 * Revision 1.3  2007-09-19 16:14:50  jaume

 * removed unnecessary imports

 *

 * Revision 1.2  2006/12/26 10:25:37  ppiqueras

 * Corregidas las dependencias con las nuevas ubicaciones de clases: IXMLType, XMLElement, IXMLComplexType, etc. (en libRemoteServices)

 *

 * Revision 1.1  2006/12/26 09:12:48  ppiqueras

 * Cambiado "atttibutes" en todas las aparaciones en atributos, m?todos, clases, paquetes o comentarios por "fields". (S?lo a aquellas que afectan a clases dentro del proyecto extWFS2). (En este caso se ha cambiado el nombre del paquete aparte de alguno otro nombre que puede haber cambiado).

 *

 * Revision 1.2  2006/10/31 12:24:04  jorpiell

 * Comprobado el caso en el que los atributos no tienen tipo

 *

 * Revision 1.1  2006/10/27 11:33:19  jorpiell

 * A?adida la treetable con los check box para seleccionar los atributos

 *

 *

 */

/**

 * @author Jorge Piera Llodr? (piera_jor@gva.es)

 */

public class CheckBoxTreeCellEditor extends AbstractCellEditor implements TreeCellEditor {

    CheckBoxTreeCellRenderer renderer = null;

    ChangeEvent changeEvent = null;

    JTree tree;

    FieldsTreeTable treetable;

    public CheckBoxTreeCellEditor(FieldsTreeTable treetable) {

        this.treetable = treetable;

        this.tree = (JTree)treetable.getTree();

        this.renderer = new CheckBoxTreeCellRenderer(treetable);

    }        

    /*

     *  (non-Javadoc)

     * @see javax.swing.CellEditor#getCellEditorValue()

     */

    public Object getCellEditorValue() {

        return null;

    }

    /*

     *  (non-Javadoc)

     * @see javax.swing.CellEditor#isCellEditable(java.util.EventObject)

     */

    public boolean isCellEditable(EventObject event) {

        if (event instanceof MouseEvent) {

            MouseEvent mouseEvent = (MouseEvent) event;

            TreePath path = tree.getPathForLocation(mouseEvent.getX(),

                mouseEvent.getY());

            if (path != null) {

                Object node = path.getLastPathComponent();

                if ((node != null) && (node instanceof CheckBoxNode)) {

                    CheckBoxNode selectedNode = (CheckBoxNode)node;

                    if (mouseEvent.getClickCount() == 2){

                    }else if(mouseEvent.getClickCount() == 1){

                        if (!selectedNode.getFeatureField().isGeometry()){

                            changeAllChildren(selectedNode,!selectedNode.isSelected());

                            changeParentState(selectedNode,!selectedNode.isSelected());                                                

                            selectedNode.setSelected(!selectedNode.isSelected());

                        }

                        tree.repaint();

                    }

                }

            }

        }

        return false;

    }

    /*

     *  (non-Javadoc)

     * @see javax.swing.tree.TreeCellEditor#getTreeCellEditorComponent(javax.swing.JTree, java.lang.Object, boolean, boolean, boolean, int)

     */

    public Component getTreeCellEditorComponent(JTree tree, Object value,

        boolean selected, boolean expanded, boolean leaf, int row) {

        Component editor = renderer.getTreeCellRendererComponent(tree, value,

            true, expanded, leaf, row, true);

        if (editor instanceof JCheckBox) {

            //((JCheckBox) editor).addItemListener(new CheckBoxListener());

        }                

        return editor;

    }        

    /**

     * It enable or disable the parent node state depending of its children values

     * @param selectedNode

     * Selected node

     * @param isSelected

     * Current node status

     */

    private void changeParentState(CheckBoxNode selectedNode,boolean isSelected){

        CheckBoxNode parent = selectedNode.getParentNode();

        while (parent != null){                        

            if (isSelected != parent.isSelected()){

                parent.setColor(TetraStateCheckBox.GREY);

            }else{        

                boolean isEnabled = true;

                for (int i=0 ; i<parent.getChildren().size() ; i++){

                    CheckBoxNode child = (CheckBoxNode)parent.getChildren().get(i);

                    if (child != selectedNode){

                        if (parent.isSelected() != child.isSelected()){

                            isEnabled = false;

                        }

                    }

                }

                if (!isEnabled){

                    parent.setColor(TetraStateCheckBox.GREY);

                }else{

                    parent.setColor(TetraStateCheckBox.WHITE);

                }                                        

            }                        

            selectedNode = parent;

            parent = selectedNode.getParentNode();                        

        }

    }

    /**

     * It changes all the children status

     * @param selectedNode

     * Root node

     * @param selected

     * New state

     */

    private void changeAllChildren(CheckBoxNode selectedNode,boolean selected){

        for (int i=0 ; i<selectedNode.getChildren().size() ; i++){

            CheckBoxNode child = ((CheckBoxNode)selectedNode.getChildren().get(i));

            if (child.getFeatureField().isGeometry()){

                child.setSelected(true);        

            }else{                            

                child.setSelected(selected);

                if (child.getChildren().size() > 0){

                    changeAllChildren(child,selected);

                }        

            }

        }

    }

}