Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2015 gvSIG Association.

 *

 * 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 3 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., 51

 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us at info AT

 * gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.tools.swing.api;

import java.util.Objects;

import javax.swing.ComboBoxModel;

import javax.swing.JComboBox;

import javax.swing.JList;

import javax.swing.ListModel;

public class ListElement<T> {

    private final String label;

    private final T value;

    public ListElement(String label, T value) {

        this.label = label;

        this.value = value;

    }

    @Override

    public String toString() {

        return this.label;

    }

    public T getValue() {

        return this.value;

    }

    public static void setSelected(JList list, Object anObject) {

        setSelectedValue(list, anObject);

    }

    public static void setSelected(JComboBox combo, Object anObject) {

        setSelectedItem(combo, anObject);

    }

    public static Object getSelected(JList list) {

        return getSelectedValue(list);

    }

    public static Object getSelected(JComboBox combo) {

        return getSelectedItem(combo);

    }

    public static void setSelectedValue(JList list, Object anObject) {

        if( anObject == null ) {

            list.setSelectedIndex(-1);

            return;

        }

        ListModel dataModel = list.getModel();

        for (int i = 0; i < dataModel.getSize(); i++) {

            Object element = dataModel.getElementAt(i);

            if( element instanceof ListElement ) {

                element = ((ListElement)element).getValue();

            }

            if( anObject.equals(element) ) {

                list.setSelectedIndex(i);

                return;

            }

        }

    }

    public static Object getSelectedValue(JList list) {

        Object element = list.getSelectedValue();

        if( element == null ) {

            return null;

        }

        if( element instanceof ListElement ) {

            return ((ListElement)element).getValue();

        }

        return element;

    }

    public static void setSelectedItem(JComboBox combo, Object anObject) {

        if( anObject == null ) {

            combo.setSelectedIndex(-1);

            return;

        }

        ComboBoxModel dataModel = combo.getModel();

        for (int i = 0; i < dataModel.getSize(); i++) {

            Object element = dataModel.getElementAt(i);

            if( element instanceof ListElement ) {

                element = ((ListElement)element).getValue();

            }

            if( Objects.equals(anObject,element) ) {

                combo.setSelectedIndex(i);

                return;

            }

        }

    }

    public static Object getSelectedItem(JComboBox combo) {

        Object element = combo.getSelectedItem();

        if( element == null ) {

            return null;

        }

        if( element instanceof ListElement ) {

            return ((ListElement)element).getValue();

        }

        return element;

    }

}