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<?php
/**
* File containing the abstract ezcGraphChartElementText class
*
* @package Graph
* @version //autogentag//
* @copyright Copyright (C) 2005, 2006 eZ systems as. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
*/
/**
* Class to represent a legend as a chart element
*
* @package Graph
*/
class ezcGraphChartElementText extends ezcGraphChartElement
{
/**
* Maximum percent of bounding used to display the text
*
* @var float
*/
protected $maxHeight = .1;
/**
* Render a legend
*
* @param ezcGraphRenderer $renderer
* @access public
* @return void
*/
public function render( ezcGraphRenderer $renderer, ezcGraphBoundings $boundings )
{
if ( empty( $this->title ) )
{
return $boundings;
}
$this->renderBorder( $renderer );
$this->renderBackground( $renderer );
$height = (int) min(
round( $this->maxHeight * ( $boundings->y1 - $boundings->y0 ) ),
$this->font->maxFontSize + $this->padding * 2
);
switch ( $this->position )
{
case ezcGraph::TOP:
$renderer->drawTextBox(
new ezcGraphCoordinate(
$boundings->x0 + $this->padding,
$boundings->y0 + $this->padding
),
$this->title,
$boundings->x1 - $boundings->x0 - $this->padding * 2,
$height - $this->padding * 2,
ezcGraph::CENTER | ezcGraph::MIDDLE
);
$boundings->y0 += $height + $this->margin;
break;
case ezcGraph::BOTTOM:
$renderer->drawTextBox(
new ezcGraphCoordinate(
$boundings->x0 + $this->padding,
$boundings->y1 - $height + $this->padding
),
$this->title,
$boundings->x1 - $boundings->x0 - $this->padding * 2,
$height - $this->padding * 2,
ezcGraph::CENTER | ezcGraph::MIDDLE
);
$boundings->y1 -= $height + $this->margin;
break;
}
return $boundings;
}
}
?>
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