impl/src/main/java/org/apache/myfaces/renderkit/html/base/HtmlGridRendererBase.java - myfaces - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
 package org.apache.myfaces.renderkit.html.base;

 import org.apache.myfaces.renderkit.html.util.CommonPropertyUtils;
 import org.apache.myfaces.renderkit.html.util.CommonEventUtils;
 import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 import java.util.logging.Level;
 import java.util.logging.Logger;

 import javax.faces.application.ProjectStage;
 import javax.faces.component.UIComponent;
 import javax.faces.component.UIPanel;
 import javax.faces.component.behavior.ClientBehavior;
 import javax.faces.component.behavior.ClientBehaviorHolder;
 import javax.faces.component.html.HtmlPanelGrid;
 import javax.faces.context.FacesContext;
 import javax.faces.context.ResponseWriter;

 import org.apache.myfaces.renderkit.html.util.JSFAttr;
 import org.apache.myfaces.renderkit.RendererUtils;
 import org.apache.myfaces.renderkit.html.util.ResourceUtils;
 import org.apache.myfaces.util.lang.ArrayUtils;
 import org.apache.myfaces.util.ComponentUtils;
 import org.apache.myfaces.util.lang.StringUtils;
 import org.apache.myfaces.renderkit.html.util.HTML;

 public class HtmlGridRendererBase extends HtmlRenderer
 {
     private static final Logger log = Logger.getLogger(HtmlGridRendererBase.class.getName());

     private static final Integer[] ZERO_INT_ARRAY = new Integer[]{0};

     @Override
     public boolean getRendersChildren()
     {
         return true;
     }

     @Override
     public void decode(FacesContext context, UIComponent component)
     {
         // Check for npe
         super.decode(context, component);

         HtmlRendererUtils.decodeClientBehaviors(context, component);
     }

     @Override
     public void encodeBegin(FacesContext facesContext, UIComponent component)
             throws IOException
     {
         // all work done in encodeEnd()
     }

     @Override
     public void encodeChildren(FacesContext context, UIComponent component)
         throws IOException
     {
         // all work done in encodeEnd()
     }

     @Override
     public void encodeEnd(FacesContext facesContext, UIComponent component)
             throws IOException
     {
         RendererUtils.checkParamValidity(facesContext, component, UIPanel.class);

         int columns;
         if (component instanceof HtmlPanelGrid)
         {
             columns = ((HtmlPanelGrid)component).getColumns();
         }
         else
         {
             Integer i = (Integer)component.getAttributes().get(JSFAttr.COLUMNS_ATTR);
             columns = i != null ? i : 0;
         }

         if (columns <= 0)
         {
             if (log.isLoggable(Level.SEVERE))
             {
                 log.severe("Wrong columns attribute for PanelGrid " +
                         component.getClientId(facesContext) + ": " + columns);
             }
             columns = 1;
         }

         ResponseWriter writer = facesContext.getResponseWriter();
         Map<String, List<ClientBehavior>> behaviors = null;
         if (component instanceof ClientBehaviorHolder)
         {
             behaviors = ((ClientBehaviorHolder) component).getClientBehaviors();
         }

         if (behaviors != null && !behaviors.isEmpty())
         {
             ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
         }

         writer.startElement(HTML.TABLE_ELEM, component);

         if (component instanceof ClientBehaviorHolder)
         {
             if (!behaviors.isEmpty())
             {
                 HtmlRendererUtils.writeIdAndName(writer, component, facesContext);
             }
             else
             {
                 HtmlRendererUtils.writeIdIfNecessary(writer, component, facesContext);
             }
             long commonPropertiesMarked = 0L;
             if (isCommonPropertiesOptimizationEnabled(facesContext))
             {
                 commonPropertiesMarked = CommonPropertyUtils.getCommonPropertiesMarked(component);
             }
             if (behaviors.isEmpty() && isCommonPropertiesOptimizationEnabled(facesContext))
             {
                 CommonPropertyUtils.renderEventProperties(writer,
                         commonPropertiesMarked, component);
             }
             else
             {
                 if (isCommonEventsOptimizationEnabled(facesContext))
                 {
                     CommonEventUtils.renderBehaviorizedEventHandlers(facesContext, writer,
                            commonPropertiesMarked,
                            CommonEventUtils.getCommonEventsMarked(component), component, behaviors);
                 }
                 else
                 {
                     HtmlRendererUtils.renderBehaviorizedEventHandlers(facesContext, writer, component, behaviors);
                 }
             }
             if (isCommonPropertiesOptimizationEnabled(facesContext))
             {
                 HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_ATTRIBUTES);
                 CommonPropertyUtils.renderCommonPassthroughPropertiesWithoutEvents(writer,
                         commonPropertiesMarked, component);
             }
             else
             {
                 HtmlRendererUtils.renderHTMLAttributes(writer, component,
                         HTML.TABLE_PASSTHROUGH_ATTRIBUTES_WITHOUT_EVENTS);
             }
         }
         else
         {
             HtmlRendererUtils.writeIdIfNecessary(writer, component, facesContext);
             if (isCommonPropertiesOptimizationEnabled(facesContext))
             {
                 HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_ATTRIBUTES);
                 CommonPropertyUtils.renderCommonPassthroughProperties(writer,
                         CommonPropertyUtils.getCommonPropertiesMarked(component), component);
             }
             else
             {
                 HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
             }
         }

         writer.flush();

         HtmlRendererUtils.renderTableCaption(facesContext, writer, component);

         // theader and tfooter are rendered before the tbody
         renderHeaderOrFooter(facesContext, writer, component, columns, true);   //Header facet
         renderHeaderOrFooter(facesContext, writer, component, columns, false);  //Footer facet

         renderChildren(facesContext, writer, component, columns);

         writer.endElement(HTML.TABLE_ELEM);
     }


     protected void renderHeaderOrFooter(FacesContext context,
                                       ResponseWriter writer,
                                       UIComponent component,
                                       int columns,
                                       boolean header)
         throws IOException
     {
         UIComponent facet = component.getFacet(header ? "header" : "footer");
         if (facet == null)
         {
             return;
         }

         writer.startElement(header ? HTML.THEAD_ELEM : HTML.TFOOT_ELEM, null);
                 // component);
         writer.startElement(HTML.TR_ELEM, null); // component);
         writer.startElement(header ? HTML.TH_ELEM : HTML.TD_ELEM, null); // component);

         String styleClass = (component instanceof HtmlPanelGrid)
             ? (header
                 ? ((HtmlPanelGrid)component).getHeaderClass()
                 : ((HtmlPanelGrid)component).getFooterClass())
             : (header
                 ? (String)component.getAttributes().get(JSFAttr.HEADER_CLASS_ATTR)
                 : (String)component.getAttributes().get(JSFAttr.FOOTER_CLASS_ATTR));
         if (styleClass != null)
         {
             writer.writeAttribute(HTML.CLASS_ATTR, styleClass,
                                   header
                                           ? JSFAttr.HEADER_CLASS_ATTR
                                           : JSFAttr.FOOTER_CLASS_ATTR);
         }

         if (header)
         {
             writer.writeAttribute(HTML.SCOPE_ATTR, HTML.SCOPE_COLGROUP_VALUE, null);
         }

         writer.writeAttribute(HTML.COLSPAN_ATTR, Integer.toString(columns), null);

         //RendererUtils.renderChild(context, facet);
         facet.encodeAll(context);

         writer.endElement(header ? HTML.TH_ELEM : HTML.TD_ELEM);
         writer.endElement(HTML.TR_ELEM);
         writer.endElement(header ? HTML.THEAD_ELEM : HTML.TFOOT_ELEM);
     }

     protected int childAttributes(FacesContext context,
             ResponseWriter writer,
             UIComponent component,
             int columnIndex)
         throws IOException
     {
         // subclasses can override this method to add attributes to the table cell <td> tag
         return columnIndex;
     }

     protected void renderChildren(FacesContext context,
                                 ResponseWriter writer,
                                 UIComponent component,
                                 int columns)
         throws IOException
     {
         String columnClasses;
         String rowClasses;
         if (component instanceof HtmlPanelGrid)
         {
             columnClasses = ((HtmlPanelGrid)component).getColumnClasses();
             rowClasses = ((HtmlPanelGrid)component).getRowClasses();
         }
         else
         {
             columnClasses = (String)component.getAttributes().get(JSFAttr.COLUMN_CLASSES_ATTR);
             rowClasses = (String)component.getAttributes().get(JSFAttr.ROW_CLASSES_ATTR);
         }

         String[] columnClassesArray = (columnClasses == null)
             ? ArrayUtils.EMPTY_STRING_ARRAY
             : StringUtils.trim(StringUtils.splitShortString(columnClasses, ','));
         int columnClassesCount = columnClassesArray.length;

         String[] rowClassesArray = (rowClasses == null)
             ? org.apache.myfaces.util.lang.ArrayUtils.EMPTY_STRING_ARRAY
             : StringUtils.trim(StringUtils.splitShortString(rowClasses, ','));
         int rowClassesCount = rowClassesArray.length;

         int childCount = getChildCount(component);
         if (childCount > 0)
         {
             // get the row indizes for which a new TBODY element should be created
             Integer[] bodyrows = null;
             String bodyrowsAttr = (String) component.getAttributes().get(JSFAttr.BODYROWS_ATTR);
             if(bodyrowsAttr != null && !bodyrowsAttr.isEmpty())
             {
                 String[] bodyrowsString = StringUtils.trim(StringUtils.splitShortString(bodyrowsAttr, ','));
                 // parsing with no exception handling, because of JSF-spec:
                 // "If present, this must be a comma separated list of integers."
                 bodyrows = new Integer[bodyrowsString.length];
                 for(int i = 0; i < bodyrowsString.length; i++)
                 {
                     bodyrows[i] = Integer.valueOf(bodyrowsString[i]);
                 }

             }
             else
             {
                 bodyrows = ZERO_INT_ARRAY;
             }
             int bodyrowsCount = 0;
             int rowIndex = -1;
             int columnIndex = 0;
             int rowClassIndex = 0;
             boolean rowStarted = false;
             for (int i = 0, size = component.getChildCount(); i < size; i++)
             {
                 UIComponent child = component.getChildren().get(i);
                 if (child.isRendered())
                 {
                     if (columnIndex == 0)
                     {
                         rowIndex++;

                         if (rowStarted)
                         {
                             //do we have to close the last row?
                             writer.endElement(HTML.TR_ELEM);
                         }

                         // is the current row listed in the bodyrows attribute
                         if (ArrayUtils.contains(bodyrows, rowIndex))
                         {
                             // close any preopened TBODY element first
                             if(bodyrowsCount != 0)
                             {
                                 writer.endElement(HTML.TBODY_ELEM);
                             }
                             writer.startElement(HTML.TBODY_ELEM, null); // component);
                             bodyrowsCount++;
                         }

                         //start of new/next row
                         writer.startElement(HTML.TR_ELEM, null); // component);
                         String rowClass = null;
                         if (component instanceof HtmlPanelGrid)
                         {
                             rowClass = ((HtmlPanelGrid) component).getRowClass();
                         }
                         if (rowClassIndex < rowClassesCount)
                         {
                             if (rowClass == null)
                             {
                                 rowClass = rowClassesArray[rowClassIndex];
                             }
                             else
                             {
                                 rowClass = rowClass + ' ' + rowClassesArray[rowClassIndex];
                             }
                         }
                         if (rowClass != null)
                         {
                             writer.writeAttribute(HTML.CLASS_ATTR, rowClass, null);
                         }
                         rowStarted = true;
                         rowClassIndex++;
                         if (rowClassIndex == rowClassesCount)
                         {
                             rowClassIndex = 0;
                         }
                     }

                     writer.startElement(HTML.TD_ELEM, null); // component);
                     if (columnIndex < columnClassesCount)
                     {
                         writer.writeAttribute(HTML.CLASS_ATTR, columnClassesArray[columnIndex], null);
                     }
                     columnIndex = childAttributes(context, writer, child, columnIndex);

                     child.encodeAll(context);
                     writer.endElement(HTML.TD_ELEM);

                     columnIndex++;
                     if (columnIndex >= columns)
                     {
                         columnIndex = 0;
                     }
                 }
             }

             if (rowStarted)
             {
                 if (columnIndex > 0)
                 {
                     Level level = context.isProjectStage(ProjectStage.Production) ? Level.FINE : Level.WARNING;
                     if (log.isLoggable(level))
                     {
                         log.log(level, "PanelGrid " + ComponentUtils.getPathToComponent(component)
                                 + " has not enough children. Child count should be a "
                                 + "multiple of the columns attribute.");
                     }

                     //Render empty columns, so that table is correct
                     for ( ; columnIndex < columns; columnIndex++)
                     {
                         writer.startElement(HTML.TD_ELEM, null); // component);
                         if (columnIndex < columnClassesCount)
                         {
                             writer.writeAttribute(HTML.CLASS_ATTR, columnClassesArray[columnIndex], null);
                         }
                         writer.endElement(HTML.TD_ELEM);
                     }
                 }
                 writer.endElement(HTML.TR_ELEM);

                 // close any preopened TBODY element first
                 if(bodyrowsCount != 0)
                 {
                     writer.endElement(HTML.TBODY_ELEM);
                 }
             }
         }
     }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/
	package org.apache.myfaces.renderkit.html.base;

	import org.apache.myfaces.renderkit.html.util.CommonPropertyUtils;
	import org.apache.myfaces.renderkit.html.util.CommonEventUtils;
	import java.io.IOException;
	import java.util.List;
	import java.util.Map;
	import java.util.logging.Level;
	import java.util.logging.Logger;

	import javax.faces.application.ProjectStage;
	import javax.faces.component.UIComponent;
	import javax.faces.component.UIPanel;
	import javax.faces.component.behavior.ClientBehavior;
	import javax.faces.component.behavior.ClientBehaviorHolder;
	import javax.faces.component.html.HtmlPanelGrid;
	import javax.faces.context.FacesContext;
	import javax.faces.context.ResponseWriter;

	import org.apache.myfaces.renderkit.html.util.JSFAttr;
	import org.apache.myfaces.renderkit.RendererUtils;
	import org.apache.myfaces.renderkit.html.util.ResourceUtils;
	import org.apache.myfaces.util.lang.ArrayUtils;
	import org.apache.myfaces.util.ComponentUtils;
	import org.apache.myfaces.util.lang.StringUtils;
	import org.apache.myfaces.renderkit.html.util.HTML;

	public class HtmlGridRendererBase extends HtmlRenderer
	{
	private static final Logger log = Logger.getLogger(HtmlGridRendererBase.class.getName());

	private static final Integer[] ZERO_INT_ARRAY = new Integer[]{0};

	@Override
	public boolean getRendersChildren()
	{
	return true;
	}

	@Override
	public void decode(FacesContext context, UIComponent component)
	{
	// Check for npe
	super.decode(context, component);

	HtmlRendererUtils.decodeClientBehaviors(context, component);
	}

	@Override
	public void encodeBegin(FacesContext facesContext, UIComponent component)
	throws IOException
	{
	// all work done in encodeEnd()
	}

	@Override
	public void encodeChildren(FacesContext context, UIComponent component)
	throws IOException
	{
	// all work done in encodeEnd()
	}

	@Override
	public void encodeEnd(FacesContext facesContext, UIComponent component)
	throws IOException
	{
	RendererUtils.checkParamValidity(facesContext, component, UIPanel.class);

	int columns;
	if (component instanceof HtmlPanelGrid)
	{
	columns = ((HtmlPanelGrid)component).getColumns();
	}
	else
	{
	Integer i = (Integer)component.getAttributes().get(JSFAttr.COLUMNS_ATTR);
	columns = i != null ? i : 0;
	}

	if (columns <= 0)
	{
	if (log.isLoggable(Level.SEVERE))
	{
	log.severe("Wrong columns attribute for PanelGrid " +
	component.getClientId(facesContext) + ": " + columns);
	}
	columns = 1;
	}

	ResponseWriter writer = facesContext.getResponseWriter();
	Map<String, List<ClientBehavior>> behaviors = null;
	if (component instanceof ClientBehaviorHolder)
	{
	behaviors = ((ClientBehaviorHolder) component).getClientBehaviors();
	}

	if (behaviors != null && !behaviors.isEmpty())
	{
	ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
	}

	writer.startElement(HTML.TABLE_ELEM, component);

	if (component instanceof ClientBehaviorHolder)
	{
	if (!behaviors.isEmpty())
	{
	HtmlRendererUtils.writeIdAndName(writer, component, facesContext);
	}
	else
	{
	HtmlRendererUtils.writeIdIfNecessary(writer, component, facesContext);
	}
	long commonPropertiesMarked = 0L;
	if (isCommonPropertiesOptimizationEnabled(facesContext))
	{
	commonPropertiesMarked = CommonPropertyUtils.getCommonPropertiesMarked(component);
	}
	if (behaviors.isEmpty() && isCommonPropertiesOptimizationEnabled(facesContext))
	{
	CommonPropertyUtils.renderEventProperties(writer,
	commonPropertiesMarked, component);
	}
	else
	{
	if (isCommonEventsOptimizationEnabled(facesContext))
	{
	CommonEventUtils.renderBehaviorizedEventHandlers(facesContext, writer,
	commonPropertiesMarked,
	CommonEventUtils.getCommonEventsMarked(component), component, behaviors);
	}
	else
	{
	HtmlRendererUtils.renderBehaviorizedEventHandlers(facesContext, writer, component, behaviors);
	}
	}
	if (isCommonPropertiesOptimizationEnabled(facesContext))
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_ATTRIBUTES);
	CommonPropertyUtils.renderCommonPassthroughPropertiesWithoutEvents(writer,
	commonPropertiesMarked, component);
	}
	else
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, component,
	HTML.TABLE_PASSTHROUGH_ATTRIBUTES_WITHOUT_EVENTS);
	}
	}
	else
	{
	HtmlRendererUtils.writeIdIfNecessary(writer, component, facesContext);
	if (isCommonPropertiesOptimizationEnabled(facesContext))
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_ATTRIBUTES);
	CommonPropertyUtils.renderCommonPassthroughProperties(writer,
	CommonPropertyUtils.getCommonPropertiesMarked(component), component);
	}
	else
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, component, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
	}
	}

	writer.flush();

	HtmlRendererUtils.renderTableCaption(facesContext, writer, component);

	// theader and tfooter are rendered before the tbody
	renderHeaderOrFooter(facesContext, writer, component, columns, true); //Header facet
	renderHeaderOrFooter(facesContext, writer, component, columns, false); //Footer facet

	renderChildren(facesContext, writer, component, columns);

	writer.endElement(HTML.TABLE_ELEM);
	}



	protected void renderHeaderOrFooter(FacesContext context,
	ResponseWriter writer,
	UIComponent component,
	int columns,
	boolean header)
	throws IOException
	{
	UIComponent facet = component.getFacet(header ? "header" : "footer");
	if (facet == null)
	{
	return;
	}

	writer.startElement(header ? HTML.THEAD_ELEM : HTML.TFOOT_ELEM, null);
	// component);
	writer.startElement(HTML.TR_ELEM, null); // component);
	writer.startElement(header ? HTML.TH_ELEM : HTML.TD_ELEM, null); // component);

	String styleClass = (component instanceof HtmlPanelGrid)
	? (header
	? ((HtmlPanelGrid)component).getHeaderClass()
	: ((HtmlPanelGrid)component).getFooterClass())
	: (header
	? (String)component.getAttributes().get(JSFAttr.HEADER_CLASS_ATTR)
	: (String)component.getAttributes().get(JSFAttr.FOOTER_CLASS_ATTR));
	if (styleClass != null)
	{
	writer.writeAttribute(HTML.CLASS_ATTR, styleClass,
	header
	? JSFAttr.HEADER_CLASS_ATTR
	: JSFAttr.FOOTER_CLASS_ATTR);
	}

	if (header)
	{
	writer.writeAttribute(HTML.SCOPE_ATTR, HTML.SCOPE_COLGROUP_VALUE, null);
	}

	writer.writeAttribute(HTML.COLSPAN_ATTR, Integer.toString(columns), null);

	//RendererUtils.renderChild(context, facet);
	facet.encodeAll(context);

	writer.endElement(header ? HTML.TH_ELEM : HTML.TD_ELEM);
	writer.endElement(HTML.TR_ELEM);
	writer.endElement(header ? HTML.THEAD_ELEM : HTML.TFOOT_ELEM);
	}

	protected int childAttributes(FacesContext context,
	ResponseWriter writer,
	UIComponent component,
	int columnIndex)
	throws IOException
	{
	// subclasses can override this method to add attributes to the table cell <td> tag
	return columnIndex;
	}

	protected void renderChildren(FacesContext context,
	ResponseWriter writer,
	UIComponent component,
	int columns)
	throws IOException
	{
	String columnClasses;
	String rowClasses;
	if (component instanceof HtmlPanelGrid)
	{
	columnClasses = ((HtmlPanelGrid)component).getColumnClasses();
	rowClasses = ((HtmlPanelGrid)component).getRowClasses();
	}
	else
	{
	columnClasses = (String)component.getAttributes().get(JSFAttr.COLUMN_CLASSES_ATTR);
	rowClasses = (String)component.getAttributes().get(JSFAttr.ROW_CLASSES_ATTR);
	}

	String[] columnClassesArray = (columnClasses == null)
	? ArrayUtils.EMPTY_STRING_ARRAY
	: StringUtils.trim(StringUtils.splitShortString(columnClasses, ','));
	int columnClassesCount = columnClassesArray.length;

	String[] rowClassesArray = (rowClasses == null)
	? org.apache.myfaces.util.lang.ArrayUtils.EMPTY_STRING_ARRAY
	: StringUtils.trim(StringUtils.splitShortString(rowClasses, ','));
	int rowClassesCount = rowClassesArray.length;

	int childCount = getChildCount(component);
	if (childCount > 0)
	{
	// get the row indizes for which a new TBODY element should be created
	Integer[] bodyrows = null;
	String bodyrowsAttr = (String) component.getAttributes().get(JSFAttr.BODYROWS_ATTR);
	if(bodyrowsAttr != null && !bodyrowsAttr.isEmpty())
	{
	String[] bodyrowsString = StringUtils.trim(StringUtils.splitShortString(bodyrowsAttr, ','));
	// parsing with no exception handling, because of JSF-spec:
	// "If present, this must be a comma separated list of integers."
	bodyrows = new Integer[bodyrowsString.length];
	for(int i = 0; i < bodyrowsString.length; i++)
	{
	bodyrows[i] = Integer.valueOf(bodyrowsString[i]);
	}

	}
	else
	{
	bodyrows = ZERO_INT_ARRAY;
	}
	int bodyrowsCount = 0;
	int rowIndex = -1;
	int columnIndex = 0;
	int rowClassIndex = 0;
	boolean rowStarted = false;
	for (int i = 0, size = component.getChildCount(); i < size; i++)
	{
	UIComponent child = component.getChildren().get(i);
	if (child.isRendered())
	{
	if (columnIndex == 0)
	{
	rowIndex++;

	if (rowStarted)
	{
	//do we have to close the last row?
	writer.endElement(HTML.TR_ELEM);
	}

	// is the current row listed in the bodyrows attribute
	if (ArrayUtils.contains(bodyrows, rowIndex))
	{
	// close any preopened TBODY element first
	if(bodyrowsCount != 0)
	{
	writer.endElement(HTML.TBODY_ELEM);
	}
	writer.startElement(HTML.TBODY_ELEM, null); // component);
	bodyrowsCount++;
	}

	//start of new/next row
	writer.startElement(HTML.TR_ELEM, null); // component);
	String rowClass = null;
	if (component instanceof HtmlPanelGrid)
	{
	rowClass = ((HtmlPanelGrid) component).getRowClass();
	}
	if (rowClassIndex < rowClassesCount)
	{
	if (rowClass == null)
	{
	rowClass = rowClassesArray[rowClassIndex];
	}
	else
	{
	rowClass = rowClass + ' ' + rowClassesArray[rowClassIndex];
	}
	}
	if (rowClass != null)
	{
	writer.writeAttribute(HTML.CLASS_ATTR, rowClass, null);
	}
	rowStarted = true;
	rowClassIndex++;
	if (rowClassIndex == rowClassesCount)
	{
	rowClassIndex = 0;
	}
	}

	writer.startElement(HTML.TD_ELEM, null); // component);
	if (columnIndex < columnClassesCount)
	{
	writer.writeAttribute(HTML.CLASS_ATTR, columnClassesArray[columnIndex], null);
	}
	columnIndex = childAttributes(context, writer, child, columnIndex);

	child.encodeAll(context);
	writer.endElement(HTML.TD_ELEM);

	columnIndex++;
	if (columnIndex >= columns)
	{
	columnIndex = 0;
	}
	}
	}

	if (rowStarted)
	{
	if (columnIndex > 0)
	{
	Level level = context.isProjectStage(ProjectStage.Production) ? Level.FINE : Level.WARNING;
	if (log.isLoggable(level))
	{
	log.log(level, "PanelGrid " + ComponentUtils.getPathToComponent(component)
	+ " has not enough children. Child count should be a "
	+ "multiple of the columns attribute.");
	}

	//Render empty columns, so that table is correct
	for ( ; columnIndex < columns; columnIndex++)
	{
	writer.startElement(HTML.TD_ELEM, null); // component);
	if (columnIndex < columnClassesCount)
	{
	writer.writeAttribute(HTML.CLASS_ATTR, columnClassesArray[columnIndex], null);
	}
	writer.endElement(HTML.TD_ELEM);
	}
	}
	writer.endElement(HTML.TR_ELEM);

	// close any preopened TBODY element first
	if(bodyrowsCount != 0)
	{
	writer.endElement(HTML.TBODY_ELEM);
	}
	}
	}
	}

	}