<actinic:block php="true" > 
	global $sATC;
	global $sOOS;
	global $sProdRef; 
	global $sInvalidPermutation;
	$sATC = '<actinic:variable name="PushButtonGridButton" />';
	$sOOS = '<actinic:variable name="ButtonOutOfStock" />';
	$sProdRef = '<actinic:variable Name="ProductID" selectable="false" encoding="perl"/>'; 
	$sInvalidPermutation = '';
	
	//
	// Code inside a PHP block will be rendered first in the standard way, i.e. variable references are substituted, content lists are looped.
	// After that the result of standard rendering will be executed as a PHP script.
	// The output of the PHP script will be the rendered result of this markup code block
	//

	//
	// As this is an attribute design, we are inside an attribute list
	// Store the index of current attribute, as we render the next N attribute in the button grid
	//
	$nBaseAttributeIdx = <actinic:variable name="ListIndex" selectable="false"/>;
	//
	// Get the number of attribute in Columns and number of attributes in Rows from local variables
	//
	<actinic:block type="AttributeList" >
		$nAttributeCount = <actinic:variable name="AttributeCount" />;
	</actinic:block>
	$nAttribs = min( <actinic:variable name="NumberAttributesInPushButtonGrid" selectable="false" />, $nAttributeCount);
	$n2 = round($nAttribs / 2);
	$n1 = $nAttribs - $n2; 

		if ($n1 > $n2)
			{
			$nYAttributeCount = $n1;
			$nXAttributeCount = $n2;
			}
		else
			{
			$nYAttributeCount = $n2;
			$nXAttributeCount = $n1;		
			}
	//
	// Now loop through all the attributes of the given product and collect all informatiuon for rendering in vectors
	// We need to loop through all the attributes, as we can't loop content lists for a given range only
	//
	// This is a special in-place content list rendering. 
	// The block loops thorough all attributes of the current product, renders the enclosed block for each attribute, and concatenates the results
	// In this case the output is intended to be a valid PHP code of course
	//
	unset( $listHeaderDesigns );
	$listHeaderDesigns = array();
	<actinic:block type="AttributeList" >
		//
		// Store current list index for PHP
		//
		$nAttributeListIdx = <actinic:variable name="ListIndex" selectable="false"/>;
		//
		// Remember attribute widget (e.g. v_9_2, which means 2nd attribute of product "ref=9"
		//
		$listAttributeWidgets[$nAttributeListIdx] = '<actinic:variable name="UIWidgetName" selectable="false"/>';
		//
		// Loop through all the choices of current attribute and render COLUMN/ROW HEADERS
		//
		$listHeaderDesigns[$nAttributeListIdx][0] = "<actinic:variable name="AttributeName" />";
		$nChoiceListIdx = 1;
		<actinic:block type="ChoiceList" >
			<actinic:block if="%28%3cactinic%3avariable%20name%3d%22ChoiceID%22%20%2f%3e%20%21%3d%200%29%20OR%0d%28%28%3cactinic%3avariable%20name%3d%22ComponentIsOptional%22%20%2f%3e%20%3d%3d%20TRUE%20%29%20AND%20%28%3cactinic%3avariable%20name%3d%22IsUsedNoneChoiceLabel%22%20%2f%3e%20%3d%3d%20FALSE%29%29%20OR%0d%28%28%3cactinic%3avariable%20name%3d%22ComponentIsOptional%22%20%2f%3e%20%3d%3d%20TRUE%20%29%20AND%20%28%3cactinic%3avariable%20name%3d%22IsUsedNoneChoiceLabel%22%20%2f%3e%20%3d%3d%20TRUE%29%20AND%20%28%3cactinic%3avariable%20name%3d%22AttributeCount%22%20%2f%3e%20%3d%3d%201%29%29%20OR%0d%28%3cactinic%3avariable%20name%3d%22ComponentIsOptional%22%20%2f%3e%20%3d%3d%20FALSE%29" >	
				//
				// Render Column/Row header for current choice 
				//
				$listHeaderDesigns[$nAttributeListIdx][$nChoiceListIdx] = <<<FREE_MARKUP_CODE_BLOCK
					<actinic:variable name="ChoiceDisplayLabel" />
FREE_MARKUP_CODE_BLOCK;
				//
				// Remember Choice ID as well
				//
				$listChoiceIds[$nAttributeListIdx][$nChoiceListIdx][0] = <Actinic:Variable Name="ChoiceSelectedValue" selectable="false"/>;
				$listChoiceIds[$nAttributeListIdx][$nChoiceListIdx][1] = <actinic:variable name="ChoiceID" />;
				$nChoiceListIdx++;
			</actinic:block>
		</actinic:block>

	</actinic:block>
	//
	// Fill the array of permutations
	//
	$listPermutations = array();
	$IsProductInStock = array();
	<actinic:block type="PermutationList" >
		$nPermutationListIdx = <actinic:variable name="ListIndex" />;
		<actinic:block type="PermutationChoiceList" >
			$nChoiceListIdx = <actinic:variable name="ListIndex" />;
			$listPermutations[ $nPermutationListIdx ][ 0 ][ $nChoiceListIdx - 1 ] = <actinic:variable name="ChoiceID" />;
		</actinic:block>
		$listPermutations[ $nPermutationListIdx ][ 1 ] = <actinic:variable name="PermutationIsValid" />;
		<actinic:block type="ProductList" >
		$IsProductInStock[ $nPermutationListIdx ] = <actinic:variable name="AssociatedProduct::StockLevel" />;
		</actinic:block>
	</actinic:block>
	//
	// Validate parameters 
	//
	if (($nYAttributeCount < 0) ||
	    ($nYAttributeCount > 100))
		{
		echo '<br /><b>Wrong y attribute count</b><br />';
		exit(0);
		}

	if (($nXAttributeCount < 0) ||
	    ($nXAttributeCount > 100))
		{
		echo '<br /><b>Wrong x attribute count</b><br />';
		exit(0);
		}
	//
	// Check if we have enough attributes to display
	//
	if (($nBaseAttributeIdx - 1 + $nYAttributeCount + $nXAttributeCount) > count($listHeaderDesigns))
		{
		echo '<br /><b>There are not enough attributes for displaying the object</b><br />';
		exit(0);
		}
			//
	// If we have 1 or 2 attributes, then display attribute name in cell (0,0)
	//
	$sHeaderDesign = "";
	if ($nXAttributeCount + $nYAttributeCount <= 2)
		{
		$sHeaderDesign .= "<b>";
		for ($nAttributeIdx = count($listHeaderDesigns); $nAttributeIdx >= $nBaseAttributeIdx; $nAttributeIdx--)
			{
			$sHeaderDesign .= $listHeaderDesigns[$nAttributeIdx][0];
			if ($nAttributeIdx > $nBaseAttributeIdx)
				{
				$sHeaderDesign .= "&nbsp;/&nbsp;";
				}
			}
		$sHeaderDesign .= "</b>";
		}
	//
	// Start putting the table together
	//

	//
	// We need hidden input fields so that scripts can identify the selected choice-combination 
	// However as initially we don't know which grid-cell will be selected, leave the value of these fields empty
	// We will fill-in the values by JavaScript when a button is pressed
	//
	for ($nAttributeIdxOffset = 1; $nAttributeIdxOffset <= $nXAttributeCount + $nYAttributeCount; $nAttributeIdxOffset++)
		{
		echo "<input type='hidden' name='${listAttributeWidgets[$nBaseAttributeIdx + $nAttributeIdxOffset -1]}' value=''>";
		}
	//
	// If there is only a single row, then display column header here
	//
	if ($nYAttributeCount == 0 && $nXAttributeCount == 1)
		{
		echo $sHeaderDesign;
		echo "<br/>";
		}
	//
	// Output table start tag
	//
	echo '<table border="1" cellspacing="0" cellpadding="2" bordercolor="<actinic:variable name="Palette1" />" style="border-collapse:collapse;">';
	//
	// Draw table header rows
	// Loop through Y-attributes and render a row for each of them
	// Fields in second row are repeated by the number of choices in first row,
	// Fields in third row are repeated by the number of choices in first row and second row
	//
	$nRepeatChoicesBy = 1;				// we clone the content of a row this times
	for ($nColumnIdx = 1; $nColumnIdx <= $nYAttributeCount; $nColumnIdx++)
		{
		//
		// Row start tag 
		//
		echo "<tr>";
		//
		// (0,0) cell is exceptional, it's a big merged cell with no choice
		//
		if ($nColumnIdx == 1)
			{
			echo "<td colspan=${nXAttributeCount} rowspan=${nYAttributeCount}>";
			echo $sHeaderDesign;
			echo "</td>";
			}
		//
		// Get number of choices of current Y-attribute
		//
		$nAttributeChoiceCount = count($listHeaderDesigns[$nBaseAttributeIdx + $nColumnIdx - 1]) - 1;
		//
		// Determine table cell offset, i.e. how many columns this choice occupies
		//
		$nColSpan = 1;
		for ($nAttributeIdx = $nColumnIdx + 1; $nAttributeIdx <= $nYAttributeCount; $nAttributeIdx++)
			{
			$nColSpan *= (count($listHeaderDesigns[$nBaseAttributeIdx + $nAttributeIdx - 1]) - 1);
			}
		//
		// Draw header table cells - one for each choice
		//
		for ($nRepeat = 1; $nRepeat <= $nRepeatChoicesBy; $nRepeat++)
			{
			for ($nChoiceIdx = 1; $nChoiceIdx <= $nAttributeChoiceCount; $nChoiceIdx++)
				{
				echo "<td colspan=${nColSpan}>";
				echo $listHeaderDesigns[$nBaseAttributeIdx + $nColumnIdx - 1][$nChoiceIdx];
				echo "</td>";
				}
			}
		//
		// Content of the next row should be repeated for each choice in this row
		//
		$nRepeatChoicesBy = $nRepeatChoicesBy * $nAttributeChoiceCount;
		//
		// Row end tag
		//
		echo "</tr>";  
	  }
	//
	// Draw table rows
	//
	$listCellChoiceIndices = array();
	$nAttributeIdx = 1;
	$sRowHeader = "";
	drawRows($nAttributeIdx, $listCellChoiceIndices, $sRowHeader);
	//
	// Close table tag
	//
	echo "</table>";
</actinic:block>
<actinic:variable name="AttributeSeparator" />