package org.homeunix.thecave.buddi.plugin.api;

 import java.awt.Color;

 import java.awt.Component;

 import java.awt.Dimension;

 import java.awt.Graphics;

 import java.awt.event.ActionEvent;

 import java.awt.event.ActionListener;

 import javax.swing.Icon;

 import javax.swing.JButton;

 import javax.swing.JLabel;

 import javax.swing.JPanel;

 import org.homeunix.thecave.buddi.model.Document;

 import org.homeunix.thecave.buddi.plugin.api.util.TextFormatter;

 import org.homeunix.thecave.buddi.view.MainFrame;

 import ca.digitalcave.moss.application.document.DocumentChangeEvent;

 import ca.digitalcave.moss.application.document.DocumentChangeListener;

 import ca.digitalcave.moss.application.plugin.MossPlugin;

 import ca.digitalcave.moss.swing.MossPanel;

 /**

  *

  * @author mpeccorini

  */

 public abstract class BuddiPanelPlugin extends MossPanel implements MossPlugin {

         private static final long serialVersionUID = 0L;

         private MainFrame parentFrame;

         protected Document document;

         private DocumentChangeListener listener;

 //        private final Vector<PanelPluginClosedListener> pluginClosedListeners = new Vector<PanelPluginClosedListener>();

         private CloseTabButton tabButton;

         public abstract String getTabLabelKey();

         public abstract boolean isSingleton();

         public abstract boolean isStartedAutomatically();

         public abstract boolean isPersisted();

         public abstract void initPanel();

         public abstract void updatePanel();

         @Override

         public void init() {

                 super.init();

                 tabButton = new CloseTabButton(this, TextFormatter.getTranslation(getTabLabelKey()));

                 initPanel();

         }

         @Override

         public void updateContent() {

                 super.updateContent();

                 updatePanel();

         }

         public void close() {

                 parentFrame.removePanel(this);

 //                for (PanelPluginClosedListener pluginClosedListener : pluginClosedListeners) {

 //                        pluginClosedListener.panelPluginClosed(this);

 //                }

         }

 //

 //        public void addPanelPluginClosedListener(PanelPluginClosedListener pluginClosedListener) {

 //                pluginClosedListeners.add(pluginClosedListener);

 //        }

 //

 //        public void removePluginClosedListener(PanelPluginClosedListener pluginClosedListener) {

 //                pluginClosedListeners.remove(pluginClosedListener);

 //        }

         public MainFrame getParentFrame() {

                 return parentFrame;

         }

         public void setParentFrame(MainFrame parentFrame) {

                 this.parentFrame = parentFrame;

                 listener = new DocumentChangeListener() {

                         public void documentChange(DocumentChangeEvent arg0) {

                                 updatePanel();

                         }

                 };

                 this.document = (Document) parentFrame.getDocument();

                 parentFrame.getDocument().addDocumentChangeListener(listener);

                 updateContent();

         }

         public boolean wasInUse() {

                 // Implement how to determine if the plugin was in use the last time Buddi

                 // was executed. In the mean time, assume no panel plugins were in use.

                 return false;

         }

         public JPanel getTabComponent(){

                 return tabButton;

         }

         class CloseIcon implements Icon {

                 public void paintIcon(Component c, Graphics g, int x, int y) {

                         g.setColor(Color.RED);

                         g.drawLine(4, 4, getIconWidth() - 5, getIconHeight() - 5);

                         g.drawLine(getIconWidth() - 5, 4, 4, getIconHeight() - 5);

                 }

                 public int getIconWidth() {

                         return 13;

                 }

                 public int getIconHeight() {

                         return 13;

                 }

         }

         class CloseTabButton extends JPanel implements ActionListener {

                 private static final long serialVersionUID = 0L;

                 BuddiPanelPlugin plugin;

                 private CloseTabButton(BuddiPanelPlugin plugin, String title) {

                         this.plugin = plugin;

                         setOpaque(false);

                         add(new JLabel(title,JLabel.LEFT));

                         Icon closeIcon = new CloseIcon();

                         JButton btClose = new JButton(closeIcon);

                         btClose.setPreferredSize(new Dimension(

                                         closeIcon.getIconWidth(), closeIcon.getIconHeight()));

                         add(btClose);

                         btClose.addActionListener(this);

                 }

                 public void actionPerformed(ActionEvent e) {

 //                        plugin.close();

                 }

         }

 }