/*

         StatCvs - CVS statistics generation

         Copyright (C) 2002  Lukasz Pekacki <lukasz@pekacki.de>

         http://statcvs.sf.net/

         This library is free software; you can redistribute it and/or

         modify it under the terms of the GNU Lesser General Public

         License as published by the Free Software Foundation; either

         version 2.1 of the License, or (at your option) any later version.

         This library 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

         Lesser General Public License for more details.

         You should have received a copy of the GNU Lesser General Public

         License along with this library; if not, write to the Free Software

         Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

         $RCSfile: TableRenderer.java,v $

         $Date: 2008/04/02 11:22:15 $

 */

 package net.sf.statcvs.renderer;

 import java.util.Iterator;

 import net.sf.statcvs.pages.HTML;

 import net.sf.statcvs.pages.MarkupSyntax;

 import net.sf.statcvs.reportmodel.Column;

 import net.sf.statcvs.reportmodel.Table;

 /**

  * Renders a {@link net.sf.statcvs.reportmodel.Table} to HTML

  *

  * @author Richard Cyganiak <rcyg@gmx.de>

  * @version $Id: TableRenderer.java,v 1.41 2008/04/02 11:22:15 benoitx Exp $

  */

 public class TableRenderer {

     private final Table table;

     private final HTMLTableCellRenderer renderer = new HTMLTableCellRenderer();

     /**

      * Creates a new table renderer for the given table model

      * @param table the table to render

      */

     public TableRenderer(final Table table, final MarkupSyntax output) {

         this.table = table;

         renderer.setOutput(output);

     }

     /**

      * Renders the table to HTML

      * @return a String of HTML

      */

     public String getRenderedTable() {

         final StringBuffer result = new StringBuffer("  <table ").append(renderer.getOutput().getTableFormat());

         result.append(" rules=\"groups\" summary=\"").append(HTML.escape(table.getSummary()));

         result.append("\">\n");

         result.append(getColumnDescriptions());

         result.append(getTableHead());

         if (table.showTotals()) {

             result.append(getTableTotals());

         }

         result.append(getTableBody());

         result.append("  </table>\n\n");

         return result.toString();

     }

     private String getColumnDescriptions() {

         final StringBuffer result = new StringBuffer();

         final Iterator it = table.getColumnIterator();

         boolean isFirstColumn = true;

         while (it.hasNext()) {

             it.next();

             if (table.hasKeysInFirstColumn() && isFirstColumn) {

                 result.append("    <colgroup align=\"left\"/>\n");

                 isFirstColumn = false;

             } else {

                 result.append("    <colgroup align=\"right\"/>\n");

             }

         }

         return result.toString();

     }

     private String getTableHead() {

         final StringBuffer result = new StringBuffer("    <thead>\n      <tr>\n");

         final Iterator it = table.getColumnIterator();

         while (it.hasNext()) {

             final Column column = (Column) it.next();

             column.renderHead(renderer);

             result.append("        ").append(renderer.getColumnHead()).append("\n");

         }

         result.append("      </tr>\n    </thead>\n");

         return result.toString();

     }

     private String getTableTotals() {

         final StringBuffer result = new StringBuffer("    <tfoot>\n      <tr>\n");

         final Iterator it = table.getColumnIterator();

         boolean isFirstColumn = true;

         while (it.hasNext()) {

             final Column column = (Column) it.next();

             column.renderTotal(renderer);

             if (isFirstColumn && table.hasKeysInFirstColumn()) {

                 result.append("        ").append(renderer.getRowHead()).append("\n");

                 isFirstColumn = false;

             } else {

                 result.append("        ").append(renderer.getTableCell()).append("\n");

             }

         }

         result.append("      </tr>\n    </tfoot>\n");

         return result.toString();

     }

     private String getTableBody() {

         final StringBuffer result = new StringBuffer("    <tbody>\n");

         for (int i = 0; i < table.getRowCount(); i++) {

             result.append(getTableRow(i));

         }

         result.append("    </tbody>\n");

         return result.toString();

     }

     private String getTableRow(final int rowIndex) {

         final StringBuffer result = new StringBuffer();

         if (rowIndex % 2 == 0) {

             result.append("      <tr ").append(renderer.getEvenRowFormat()).append(">\n");

         } else {

             result.append("      <tr ").append(renderer.getOddRowFormat()).append(">\n");

         }

         final Iterator it = table.getColumnIterator();

         boolean isFirstColumn = true;

         while (it.hasNext()) {

             final Column column = (Column) it.next();

             column.renderCell(rowIndex, renderer);

             if (isFirstColumn && table.hasKeysInFirstColumn()) {

                 result.append("        ").append(renderer.getRowHead()).append("\n");

                 isFirstColumn = false;

             } else {

                 result.append("        ").append(renderer.getTableCell()).append("\n");

             }

         }

         result.append("      </tr>\n");

         return result.toString();

     }

 }