Application: gvSIG desktop

/* 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

 */

package com.iver.andami.preferences;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.event.ActionListener;

import java.util.Enumeration;

import java.util.Hashtable;

import java.util.Iterator;

import javax.swing.JButton;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JSeparator;

import javax.swing.JSplitPane;

import javax.swing.JTree;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.DefaultTreeCellRenderer;

import javax.swing.tree.DefaultTreeModel;

import com.iver.andami.PluginServices;

import com.iver.andami.ui.mdiManager.SingletonView;

import com.iver.andami.ui.mdiManager.View;

import com.iver.andami.ui.mdiManager.ViewInfo;

/**

 * @author fjp

 *

 * The reason behind this class is to have the opportunity of use a DlgPreferences

 * in a local way. Then, you don't need to be a SingletonView.

 */

public class GenericDlgPreferences extends JPanel implements View {

	private ViewInfo viewInfo = null;

	private IPreference activePreference;

	private static Hashtable preferences = new Hashtable();

	DefaultTreeModel treeModel = null;

	private JTree jTreePlugins = null;

	private JPanel jPanelButtons = null;

	private JButton jButtonOK = null;

	private JButton jButtonCancel = null;

	private DefaultMutableTreeNode root = new DefaultMutableTreeNode();

	private JPanel jPanelCenter = null;

	private JLabel jLabelBigTitle = null;

	private JScrollPane jScrollPane = null;

	private JSplitPane jSplitPaneCenter = null;

	private JPanel jPanelContainer = null;

	private JButton jButtonRestore;

	private class MyTreeCellRenderer extends DefaultTreeCellRenderer

	{

	    public MyTreeCellRenderer() {

	    }

	    public Component getTreeCellRendererComponent(

	                        JTree tree,

	                        Object value,

	                        boolean sel,

	                        boolean expanded,

	                        boolean leaf,

	                        int row,

	                        boolean hasFocus) {

	        super.getTreeCellRendererComponent(

	                        tree, value, sel,

	                        expanded, leaf, row,

	                        hasFocus);

	        if (value instanceof DefaultMutableTreeNode)

	        {

	        	DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;

		        if (node.getUserObject() instanceof IPreference)

		        {

		        	IPreference pref = (IPreference) node.getUserObject();

		        	this.setText(pref.getTitle());

		        }

	        }

	        return this;

	    }

	}

	public GenericDlgPreferences() {

		super();

		initialize();

	}

	private void initialize() {

		setLayout(new BorderLayout());

		setSize(new java.awt.Dimension(588,479));

		super.add(getJPanelButtons(), BorderLayout.SOUTH);

		setPreferredSize(new java.awt.Dimension(390,369));

		super.add(getJSplitPaneCenter(), java.awt.BorderLayout.CENTER);

		getJSplitPaneCenter().setLeftComponent(getJScrollPane());

		getJSplitPaneCenter().setRightComponent(getJPanelNorth());

		treeModel = new DefaultTreeModel(root);

	}

	/**

	 * It is very common to be confused with this method. But

	 * the one you are looking for is addPreferencePage(IPreference)

	 */

	public Component add(Component c) {

		throw new Error("Do not use com.iver.cit.gvsig.gui.preferences.DlgPreferences.add(Component) use com.iver.cit.gvsig.gui.preferences.DlgPreferences.addPreferencePage(IPreference) instead");

	}

	public Component add(Component c, int i) {

		return add(c);

	}

	public void add(Component c, Object o) {

		add(c);

	}

	public void add(Component c, Object o, int i) {

		add(c);

	}

	public ViewInfo getViewInfo() {

		if (viewInfo == null) {

			viewInfo = new ViewInfo(ViewInfo.MODALDIALOG | ViewInfo.RESIZABLE | ViewInfo.PALETTE);

			viewInfo.setTitle(PluginServices.getText(this,

					"Preferences"));

			viewInfo.setWidth(this.getWidth()+8);

			viewInfo.setHeight(this.getHeight());

		}

		return viewInfo;

	}

	/**

	 * This method initializes jTreePlugins

	 *

	 * @return javax.swing.JTree

	 */

	private JTree getJTreePlugins() {

		if (jTreePlugins == null) {

			jTreePlugins = new JTree();

			jTreePlugins.setRootVisible(false);

			MyTreeCellRenderer treeCellRenderer = new MyTreeCellRenderer();

			treeCellRenderer.setOpenIcon(null);

			treeCellRenderer.setClosedIcon(null);

			treeCellRenderer.setLeafIcon(null);

			jTreePlugins.setCellRenderer(treeCellRenderer);

			jTreePlugins.setShowsRootHandles(true);

			jTreePlugins

					.addTreeSelectionListener(new javax.swing.event.TreeSelectionListener() {

						public void valueChanged(javax.swing.event.TreeSelectionEvent e) {

							 DefaultMutableTreeNode node = (DefaultMutableTreeNode)

		                       jTreePlugins.getLastSelectedPathComponent();

							 	if (node == null) return;

							 	activePreference = (IPreference) node.getUserObject();

							 	jLabelBigTitle.setText(activePreference.getTitle());

							 	JPanel prefPanel = activePreference.getPanel();

							 	jLabelBigTitle.setIcon(activePreference.getIcon());

							 	jPanelContainer.removeAll();

							 	jPanelContainer.add(prefPanel);

							 	prefPanel.setVisible(true);

							 	repaint();

						}

					});

			jTreePlugins.putClientProperty("JTree.linestyle", "Angled");

		}

		return jTreePlugins;

	}

	public void addPreferencePage(IPreference page)

	{

		preferences.put(page.getID(), page);

		page.initializeValues(); // init values from the last settings

		//page.storeValues();		 // apply them

		doInsertNode(page);

		getJTreePlugins().setModel(treeModel);

	}

	private DefaultMutableTreeNode findNode(String searchID)

	{

		Enumeration e = root.breadthFirstEnumeration();

		while (e.hasMoreElements())

		{

			DefaultMutableTreeNode nodeAux = (DefaultMutableTreeNode) e.nextElement();

			if (nodeAux != null)

			{

				IPreference pref = (IPreference) nodeAux.getUserObject();

				if (pref == null) continue; // Nodo ra?z

				if (pref.getID().equals(searchID))

				{

					return nodeAux;

				}

			}

		}

		return null;

	}

	private void doInsertNode(IPreference page)

	{

		if (findNode(page.getID()) != null) // Ya est? incluido

			return;

		if (page.getParentID() != null)

		{

			if (preferences.containsKey(page.getParentID()))

			{

				IPreference parent = (IPreference) preferences.get(page.getParentID());

				DefaultMutableTreeNode nodeParent = findNode(parent.getID());

				if (nodeParent == null) // Todav?a no hemos a?adido al padre.

				{

					// Lo a?adimos de manera recursiva

					doInsertNode(parent);

				}

				else

				{

					DefaultMutableTreeNode nodeValue = new DefaultMutableTreeNode(page);

					treeModel.insertNodeInto(nodeValue, nodeParent, nodeParent.getChildCount());

				}

			}

		}

		else // Nodo de los de primera l?nea ("General", "Edicion", etc)

		{

			DefaultMutableTreeNode nodeValue = new DefaultMutableTreeNode(page);

			treeModel.insertNodeInto(nodeValue, root, root.getChildCount());

		}

	}

	/**

	 * This method initializes jPanelButtons

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getJPanelButtons() {

		if (jPanelButtons == null) {

			jPanelButtons = new JPanel(new BorderLayout());

			JPanel jPanelAux = new JPanel();

			JLabel l = new JLabel();

			l.setPreferredSize(new Dimension(40, 20));

			jPanelButtons.add(new JSeparator(JSeparator.HORIZONTAL), BorderLayout.NORTH);

			jPanelAux.add(getJButtonRestore(), BorderLayout.WEST);

			jPanelAux.add(l, BorderLayout.CENTER);

			jPanelAux.add(getJButtonOK(), BorderLayout.EAST);

			jPanelAux.add(getJButtonCancel(), BorderLayout.EAST);

			jPanelButtons.add(jPanelAux);

		}

		return jPanelButtons;

	}

	/**

	 * This method initializes jPanelButtons

	 *

	 * @return javax.swing.JPanel

	 */

	/**

	 * This method initializes jButtonOK

	 *

	 * @return javax.swing.JButton

	 */

	private JButton getJButtonOK() {

		if (jButtonOK == null) {

			jButtonOK = new JButton();

			jButtonOK.setText(PluginServices.getText(this, "aceptar"));

			jButtonOK.addActionListener(new ActionListener()

					{

						public void actionPerformed(java.awt.event.ActionEvent e) {

							Iterator it = preferences.keySet().iterator();

							boolean shouldClose = true;

							while (it.hasNext()) {

								IPreference preference = (IPreference) preferences.get(it.next());

								if (!preference.storeValues())

									shouldClose = false;

							}

							if (shouldClose)

								closeView();

						};

					});

		}

		return jButtonOK;

	}

	/**

	 * This method initializes jButtonOK

	 *

	 * @return javax.swing.JButton

	 */

	/**

	 * This method initializes jButtonOK

	 *

	 * @return javax.swing.JButton

	 */

	private JButton getJButtonRestore() {

		if (jButtonRestore == null) {

			jButtonRestore = new JButton();

			jButtonRestore.setText(PluginServices.getText(this, "restore_defaults"));

			jButtonRestore.addActionListener(new ActionListener()

					{

						public void actionPerformed(java.awt.event.ActionEvent e) {

							if (activePreference!=null)

								activePreference.initializeDefaults();

						};

					});

		}

		return jButtonRestore;

	}

	private void closeView() {

		PluginServices.getMDIManager().closeView(this);

	}

	/**

	 * This method initializes jButtonCancel

	 *

	 * @return javax.swing.JButton

	 */

	private JButton getJButtonCancel() {

		if (jButtonCancel == null) {

			jButtonCancel = new JButton();

			jButtonCancel.setText(PluginServices.getText(this, "cancelar"));

			jButtonCancel.addActionListener(new java.awt.event.ActionListener() {

				public void actionPerformed(java.awt.event.ActionEvent e) {

					closeView();

				}

			});

		}

		return jButtonCancel;

	}

	/**

	 * This method initializes jPanelNorth

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getJPanelNorth() {

		if (jPanelCenter == null) {

			jLabelBigTitle = new JLabel();

			jLabelBigTitle.setText("General");

			jLabelBigTitle.setFont(new java.awt.Font("MS Sans Serif", java.awt.Font.BOLD, 14));

			jLabelBigTitle.setHorizontalTextPosition(javax.swing.SwingConstants.TRAILING);

			jLabelBigTitle.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);

			jPanelCenter = new JPanel();

			JPanel jPanelPageTitle = new JPanel(new BorderLayout());

			JPanel jPanelAux = new JPanel(new BorderLayout());

			jPanelAux.add(jLabelBigTitle, java.awt.BorderLayout.NORTH);

			jPanelPageTitle.add(jPanelAux, java.awt.BorderLayout.WEST);

			jPanelPageTitle.add(new JSeparator(JSeparator.HORIZONTAL), BorderLayout.SOUTH);

			jPanelCenter.setLayout(new BorderLayout());

			jPanelCenter.add(jPanelPageTitle, BorderLayout.NORTH);

			jPanelCenter.add(getJPanelContainer(), java.awt.BorderLayout.CENTER);

		}

		return jPanelCenter;

	}

	/**

	 * This method initializes jScrollPane

	 *

	 * @return javax.swing.JScrollPane

	 */

	private JScrollPane getJScrollPane() {

		if (jScrollPane == null) {

			jScrollPane = new JScrollPane();

			jScrollPane.setPreferredSize(new java.awt.Dimension(140,322));

			jScrollPane.setViewportView(getJTreePlugins());

		}

		return jScrollPane;

	}

	/**

	 * This method initializes jSplitPaneCenter

	 *

	 * @return javax.swing.JSplitPane

	 */

	private JSplitPane getJSplitPaneCenter() {

		if (jSplitPaneCenter == null) {

			jSplitPaneCenter = new JSplitPane();

		}

		return jSplitPaneCenter;

	}

	/**

	 * This method initializes jPanelContainer

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getJPanelContainer() {

		if (jPanelContainer == null) {

			jPanelContainer = new JPanel();

		}

		return jPanelContainer;

	}

}  //  @jve:decl-index=0:visual-constraint="10,10"

public class DlgPreferences extends GenericDlgPreferences implements SingletonView {