package com.melloware.jukes.gui.view.dialogs;
   
   import javax.swing.table.AbstractTableModel;
   
   import org.apache.commons.logging.Log;
   import org.apache.commons.logging.LogFactory;
   
   import com.jgoodies.uif.application.Application;
   import com.melloware.jukes.file.tag.MusicTag;
  import com.melloware.jukes.gui.tool.Resources;
  import com.melloware.jukes.gui.view.MainFrame;
  import com.melloware.jukes.util.MessageUtil;
  
  
  /**
   * The table model for displaying music tags from a directory.
   * <p>
   * Copyright (c) 1999-2007 Melloware, Inc. <http://www.melloware.com>
   * @author Emil A. Lefkof III <info@melloware.com>
   * @version 4.0
   */
  public final class MusicTagTableModel
      extends AbstractTableModel {
  
      private static final Log LOG = LogFactory.getLog(MusicTagTableModel.class);
      private Object[] data;
      private final String[] columnNames = { Resources.getString("label.track"),
      		                               Resources.getString("label.title"),
      		                               Resources.getString("label.comment"),
      		                               Resources.getString("label.bitrate"),
      		                               Resources.getString("label.file") };
  
      /**
       * Constructor that takes a collection.
       */
      public MusicTagTableModel() {
          super();
          LOG.debug("MusicTagTableModel created.");
          this.data = null;
      }
  
      /**
       * Constructor that takes a collection.
       */
      public MusicTagTableModel(Object[] aData) {
          super();
          LOG.debug("MusicTagTableModel created.");
          this.data = aData;
      }
  
      /* (non-Javadoc)
       * @see javax.swing.table.TableModel#getColumnCount()
       */
      public int getColumnCount() {
          return columnNames.length;
      }
  
      /* (non-Javadoc)
       * @see javax.swing.table.AbstractTableModel#getColumnName(int)
       */
      public String getColumnName(int col) {
          return columnNames[col];
      }
  
      /**
       * Gets the data.
       * <p>
       * @return Returns the data.
       */
      public Object[] getData() {
          return this.data;
      }
  
      /* (non-Javadoc)
       * @see javax.swing.table.TableModel#getRowCount()
       */
      public int getRowCount() {
          if (data == null) {
              return 0;
          } else {
              return data.length;
          }
      }
  
      /* (non-Javadoc)
       * @see javax.swing.table.TableModel#getValueAt(int, int)
       */
      public Object getValueAt(int row, int col) {
          try {
              if (data == null) {
                  return "";
              }
              if (row >= data.length) {
                  return "";
              }
              final MusicTag item = (MusicTag)data[row];
              Object value = null;
              switch (col) {
                  case 0: {
                     value = item.getTrack();
                     break;
                 }
                 case 1: {
                     value = item.getTitle();
                     break;
                 }
                 case 2: {
                     value = item.getComment();
                     break;
                 }
                 case 3: {
                     value = "   " + item.getBitRateAsString() + "   ";
                     break;
                 }
                 case 4: {
                     value = item.getAbsolutePath();
                     break;
                 }
                 default: {
                     break;
                 }
             }
             return (value == null) ? "" : value;
         } catch (Exception ex) {
         	final MainFrame mainFrame = (MainFrame) Application.getDefaultParentFrame();
        	    final String errorMessage = Resources.getString("messages.ErrorLoadingResults");
     	    MessageUtil.showError(mainFrame, errorMessage);
             LOG.error(errorMessage, ex);
             return "";
         }
     }
 
     /**
      * Sets the data.
      * <p>
      * @param aData The data to set.
      */
     public void setData(Object[] aData) {
         this.data = aData;
     }
 
     /* (non-Javadoc)
      * @see javax.swing.table.AbstractTableModel#setValueAt(java.lang.Object, int, int)
      */
     public void setValueAt(Object aValue, int aRowIndex, int aColumnIndex) {
         if (aRowIndex >= data.length) {
             return;
         }
         final MusicTag tag = (MusicTag)data[aRowIndex];
         String value = aValue.toString();
         try {
             switch (aColumnIndex) {
                 case 0: {
                     tag.setTrack(value);
                     break;
                 }
                 case 1: {
                     tag.setTitle(value);
                     break;
                 }
                 case 2: {
                     tag.setComment(value);
                     break;
                 }
                 default: {
                     break;
                 }
             }
         } catch (Exception ex) {
         	final MainFrame mainFrame = (MainFrame) Application.getDefaultParentFrame();
         	final String errorMessage = Resources.getString("messages.ErrorEditingTable") + ": \n\n" + ex.getMessage();
         	MessageUtil.showError(mainFrame, errorMessage);
             LOG.error(errorMessage, ex);
         }
     }
 
     /* (non-Javadoc)
      * @see javax.swing.table.AbstractTableModel#isCellEditable(int, int)
      */
     public boolean isCellEditable(int row, int col) {
     	boolean result = false;
         // only track, title,and comment are editable
         switch (col) {
             case 0:
             case 1:
             case 2: {
             	result = true;
                 break;
             }
             default: {
             	result = false;
             }
         }
         return result;
     }
 }