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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
require_once 'HTML/Table/Matrix/Filler.php';
/**
* Fill inwards, clockwise.
*
* @author Arpad Ray <arpad@rajeczy.com>
* @package HTML_Table_Matrix
*/
class HTML_Table_Matrix_Filler_InC extends HTML_Table_Matrix_Filler {
/**
* Number of columns to move towards the right for the next cell
*
* @type int
*/
var $_right = 1;
/**
* Number of rows to move downwards for the next cell
*
* @type int
*/
var $_down = 0;
/**
* Number of cells inwards for the current revolution
*
* @type int
*/
var $_in = 0;
/**
* Constructor
*
* @param Object $matrix Reference to the HTML_Table_Matrix instance we are
* filling data for.
* @param array $options Options for this Filler
* @return void
*/
function HTML_Table_Matrix_Filler_InC(&$matrix, $options = false) {
$this->setOptions($options);
$this->matrix = $matrix;
}
/**
* Get the next cell.
*
* @param int $index Where we're at in the data-set
* @return array 1-dimensional array in the form of (row, col) containing the
* coordinates to put the data for this loop iteration
*/
function next($index) {
if ($index == 0) {
$this->row = $this->matrix->_fillStartRow;
$this->col = $this->matrix->_fillStartCol;
} else {
$this->row += $this->_down;
$this->col += $this->_right;
if ($this->row == $this->matrix->_rows - $this->_in - 1
&& $this->row != $this->matrix->_fillStartRow + $this->_in) {
// last row, revolution width != 1
if ($this->col == $this->matrix->_cols - $this->_in - 1) {
// last column
$this->_right = -1;
$this->_down = 0;
} else if ($this->col == $this->matrix->_fillStartCol + $this->_in) {
// first column
$this->_right = 0;
$this->_down = -1;
}
} else if ($this->row == $this->matrix->_fillStartRow + $this->_in
&& $this->col == $this->matrix->_cols - $this->_in - 1) {
// first row, last column
$this->_right = 0;
$this->_down = 1;
} else if ($this->col + $this->_right == $this->matrix->_fillStartCol + $this->_in
&& $this->row + $this->_down == $this->matrix->_fillStartRow + $this->_in) {
// next cell would be the starting
$this->_in++;
$this->_right = 1;
$this->_down = 0;
}
}
return array($this->row, $this->col);
}
}
?>
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