Application: gvSIG desktop

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

 *

 * Copyright (C) 2007 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.

 */

package org.gvsig.rastertools.properties.panels;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.FlowLayout;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.util.ArrayList;

import java.util.EventObject;

import java.util.Iterator;

import javax.swing.DefaultListModel;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.ListSelectionModel;

import org.gvsig.raster.datastruct.TransparencyRange;

import org.gvsig.rastertools.properties.control.TranspByPixelEventListener;

import org.gvsig.rastertools.properties.control.TranspByPixelListener;

import com.iver.andami.PluginServices;

/**

 * Panel con los controles para la transparencia por pixel. Incluye los textbox

 * para a?adir un RGB a la lista.

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class TranspByPixelPanel extends JPanel {

        private static final long               serialVersionUID = -1131297200332579683L;

        private boolean                         controlEnabled = false;

        private JCheckBox                       activeCheck    = null;

        private JList                           jList          = null;

        private JPanel                          pixelSelector  = null;

        private JPanel                          activeControl  = null;

        private JPanel                          pEast          = null;

        private JPanel                          pCenter        = null;

        private JPanel                          pButtons       = null;

        private JButton                         bAdd           = null;

        private JButton                         bRemove        = null;

        private JButton                         bSelectColor   = null;

        private JScrollPane                     jScrollList    = null;

        private TranspByPixelRGBInputPanel      pWest          = null;

        private TranspByPixelAndOrSelectorPanel pOperation     = null;

        private TranspByPixelListener           listener       = null;

        private ArrayList                       actionCommandListeners = new ArrayList();

        /**

         * This is the default constructor

         */

        public TranspByPixelPanel() {

                initialize();

                // Inicializa el TranspByPixelListener

                getListener();

                setControlEnabled(false);

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                setLayout(new BorderLayout());

                add(getActiveControl(), BorderLayout.NORTH);

                add(getPixelSelector(), BorderLayout.CENTER);

        }

        /**

         * Obtiene el panel con los controles principales para introducir valores RGB

         * en la lista

         * @return JPanel

         */

        private JPanel getPixelSelector() {

                if (pixelSelector == null) {

                        pixelSelector = new JPanel();

                        pixelSelector.setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 11, 5, 11));

                        pixelSelector.setLayout(new BorderLayout(5, 5));

                        JPanel jpanel1 = new JPanel();

                        jpanel1.setLayout(new BorderLayout(5, 5));

                        jpanel1.add(getPRGBInput(), BorderLayout.CENTER);

                        jpanel1.add(getPCenter(), BorderLayout.EAST);

                        pixelSelector.add(jpanel1, BorderLayout.CENTER);

                        pixelSelector.add(getPList(), BorderLayout.EAST);

                }

                return pixelSelector;

        }

        /**

         * Obtiene el panel con el control de activaci?n

         * @return JPanel

         */

        private JPanel getActiveControl() {

                if (activeControl == null){

                        activeControl = new JPanel();

                        FlowLayout fl = new FlowLayout();

                        fl.setAlignment(FlowLayout.LEFT);

                        activeControl.setLayout(fl);

                        activeControl.add(getActiveCheck());

                }

                return activeControl;

        }

        /**

         * Obtiene el check que activa y desactiva la transparencia por pixel.

         * @return JCheckBox

         */

        public JCheckBox getActiveCheck() {

                if(activeCheck == null) {

                        activeCheck = new JCheckBox(PluginServices.getText(this, "activar"));

                        activeCheck.setSelected(false);

                }

                return activeCheck;

        }

        /**

         * This method initializes jPanel

         * @return

         */

        public TranspByPixelRGBInputPanel getPRGBInput() {

                if (pWest == null) {

                        pWest = new TranspByPixelRGBInputPanel();

                }

                return pWest;

        }

        /**

         * This method initializes jPanel1

         * @return javax.swing.JPanel

         */

        public JPanel getPList() {

                if (pEast == null) {

                        GridBagConstraints gridBagConstraints3 = new GridBagConstraints();

                        gridBagConstraints3.fill = java.awt.GridBagConstraints.BOTH;

                        gridBagConstraints3.gridx = 0;

                        gridBagConstraints3.gridy = 0;

                        gridBagConstraints3.weightx = 1.0;

                        gridBagConstraints3.weighty = 1.0;

                        gridBagConstraints3.insets = new java.awt.Insets(0,0,0,0);

                        pEast = new JPanel();

                        pEast.setLayout(new GridBagLayout());

                        pEast.add(getJScrollList(), gridBagConstraints3);

                }

                return pEast;

        }

        /**

         * This method initializes pCenter

         * @return javax.swing.JPanel

         */

        private JPanel getPCenter() {

                if (pCenter == null) {

                        GridBagConstraints gridBagConstraints1 = new GridBagConstraints();

                        gridBagConstraints1.insets = new java.awt.Insets(0,0,0,0);

                        gridBagConstraints1.gridy = 1;

                        gridBagConstraints1.gridx = 0;

                        GridBagConstraints gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.insets = new java.awt.Insets(0,0,0,0);

                        gridBagConstraints.gridy = 0;

                        gridBagConstraints.gridx = 0;

                        pCenter = new JPanel();

                        pCenter.setLayout(new GridBagLayout());

                        pCenter.add(getPButtons(), gridBagConstraints);

                        pCenter.add(getPOperation(), gridBagConstraints1);

                }

                return pCenter;

        }

        /**

         * This method initializes bAdd

         *

         * @return javax.swing.JButton

         */

        public JButton getBAdd() {

                if (bAdd == null) {

                        bAdd = new JButton("A?adir");

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

                        bAdd.setIcon(PluginServices.getIconTheme().get("forward-icon"));

                }

                return bAdd;

        }

        /**

         * This method initializes bRemove

         *

         * @return javax.swing.JButton

         */

        public JButton getBRemove() {

                if (bRemove == null) {

                        bRemove = new JButton("Quitar");

                        bRemove.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);

                        bRemove.setIcon(PluginServices.getIconTheme().get("backward-icon"));

                        bRemove.setEnabled(false);

                }

                return bRemove;

        }

        public JButton getBSelectColor() {

                if (bSelectColor == null) {

                        bSelectColor = new JButton("Color");

                }

                return bSelectColor;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private JPanel getPButtons() {

                if (pButtons == null) {

                        pButtons = new JPanel();

                        pButtons.setLayout(new java.awt.GridBagLayout());

                        GridBagConstraints gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        gridBagConstraints.gridy = 0;

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;

                        pButtons.add(getBAdd(), gridBagConstraints);

                        gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        gridBagConstraints.gridy = 1;

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;

                        pButtons.add(getBRemove(), gridBagConstraints);

                        gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3);

                        gridBagConstraints.gridy = 2;

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;

                        pButtons.add(getBSelectColor(), gridBagConstraints);

                }

                return pButtons;

        }

        /**

         * This method initializes jPanel1

         *

         * @return javax.swing.JPanel

         */

        public TranspByPixelAndOrSelectorPanel getPOperation() {

                if (pOperation == null) {

                        pOperation = new TranspByPixelAndOrSelectorPanel();

                        pOperation.setPreferredSize(new java.awt.Dimension(60,60));

                }

                return pOperation;

        }

        /**

         * This method initializes jList

         *

         * @return javax.swing.JList

         */

        public JList getJList() {

                if (jList == null) {

                        jList = new JList(new DefaultListModel());

                        jList.setFont(new java.awt.Font("Monospaced", java.awt.Font.PLAIN, 10));

                        jList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

                }

                return jList;

        }

        /**

         * Inicializa el scroll para el jList

         * @return

         */

        public JScrollPane getJScrollList() {

                if (jScrollList == null) {

                        jScrollList = new JScrollPane();

                        jScrollList.setViewportView(getJList());

                        jScrollList.setPreferredSize(new java.awt.Dimension(160,100));

                }

                return jScrollList;

        }

        /**

         * Obtiene el ListModel de la lista

         * @return DefaultListModel

         */

        public DefaultListModel getListModel(){

                return (DefaultListModel) getJList().getModel();

        }

        /**

         * Activa o desactiva el control

         * @param enable True activa el control y false lo desactiva

         */

        public void setControlEnabled(boolean enabled){

                this.getActiveCheck().setSelected(enabled);

                getJList().setEnabled(enabled);

                if (enabled)

                        getJList().setBackground(Color.WHITE);

                else

                        getJList().setBackground(this.getBackground());

                getPRGBInput().setControlEnabled(enabled);

                getBAdd().setEnabled(enabled);

                getBSelectColor().setEnabled(enabled);

                if (enabled)

                        getBRemove().setEnabled(getJList().getModel().getSize()>0);

                else

                        getBRemove().setEnabled(false);

                getPOperation().setControlEnabled(enabled);

                controlEnabled = enabled;

        }

        /**

         * Obtiene true si el control est? activo y false si no lo est?

         * @return

         */

        public boolean isControlEnabled(){

                return controlEnabled;

        }

        /**

         * Asigna el n?mero de bandas activas

         * @param n N?mero de bandas

         */

        public void setActiveBands(int n){

                ((TranspByPixelRGBInputPanel)getPRGBInput()).setActiveBands(n);

        }

        /**

         * Obtiene el array de entradas de valores a?adidos a la lista

         * @return ArrayList

         */

        public ArrayList getEntries(){

                return getListener().getEntries();

        }

        /**

         * Obtiene la clase manejadora de eventos asociada a esta

         * @return TransparencyByPixelListener

         */

        public TranspByPixelListener getListener() {

                if (listener == null) {

                        listener = new TranspByPixelListener(this);

                }

                return listener;

        }

        /**

         * A?ade una entrada a la tabla

         * @param entry objeto TransparencyRange

         */

        public void addStringElement(TransparencyRange entry){

                getEntries().add(entry);

                getListModel().addElement(entry.getStrEntry());

                getBRemove().setEnabled(true);

        }

        /**

         * Borra las entradas de la tabla

         */

        public void clear(){

                getPRGBInput().clear();

                getListModel().clear();

                getEntries().clear();

                getBRemove().setEnabled(false);

        }

        /**

         * A?adir un listener a la lista de eventos

         * @param listener

         */

        public void addValueChangedListener(TranspByPixelEventListener listener) {

                if (!actionCommandListeners.contains(listener))

                        actionCommandListeners.add(listener);

        }

        /**

         * Borrar un listener de la lista de eventos

         * @param listener

         */

        public void removeValueChangedListener(TranspByPixelEventListener listener) {

                actionCommandListeners.remove(listener);

        }

        /**

         * Dispara todos los manejadores que estan apuntando a este evento

         */

        public void callValueChanged() {

                Iterator acIterator = actionCommandListeners.iterator();

                while (acIterator.hasNext()) {

                        TranspByPixelEventListener listener = (TranspByPixelEventListener) acIterator.next();

                        listener.actionPixelListChanged(new EventObject(this));

                }

        }

}