* $chart = new ezcGraphPieChart(); * $chart->data['example'] = new ezcGraphArrayDataSet( array( * 'Foo' => 23, * 'Bar' => 42, * ) ); * * $chart->title = 'Some pie chart'; * * // Use at maximum 5% of the chart height for the title. * $chart->title->maxHeight = .05; * * $graph->render( 400, 250, 'title.svg' ); * * * @property float $maxHeight * Maximum percent of bounding used to display the text. * * @version //autogentag// * @package Graph * @mainclass */ class ezcGraphChartElementText extends ezcGraphChartElement { /** * Constructor * * @param array $options Default option array * @return void * @ignore */ public function __construct( array $options = array() ) { $this->properties['maxHeight'] = .1; parent::__construct( $options ); } /** * __set * * @param mixed $propertyName * @param mixed $propertyValue * @throws ezcBaseValueException * If a submitted parameter was out of range or type. * @throws ezcBasePropertyNotFoundException * If a the value for the property options is not an instance of * @return void */ public function __set( $propertyName, $propertyValue ) { switch ( $propertyName ) { case 'maxHeight': if ( !is_numeric( $propertyValue ) || ( $propertyValue < 0 ) || ( $propertyValue > 1 ) ) { throw new ezcBaseValueException( $propertyName, $propertyValue, '0 <= float <= 1' ); } $this->properties['maxHeight'] = (float) $propertyValue; break; default: parent::__set( $propertyName, $propertyValue ); break; } } /** * Render the text * * @param ezcGraphRenderer $renderer Renderer * @param ezcGraphBoundings $boundings Boundings for the axis * @return ezcGraphBoundings Remaining boundings */ public function render( ezcGraphRenderer $renderer, ezcGraphBoundings $boundings ) { $height = (int) min( round( $this->properties['maxHeight'] * ( $boundings->y1 - $boundings->y0 ) ), $this->properties['font']->maxFontSize + $this->padding * 2 + $this->margin * 2 ); switch ( $this->properties['position'] ) { case ezcGraph::TOP: $textBoundings = new ezcGraphBoundings( $boundings->x0, $boundings->y0, $boundings->x1, $boundings->y0 + $height ); $boundings->y0 += $height + $this->properties['margin']; break; case ezcGraph::BOTTOM: $textBoundings = new ezcGraphBoundings( $boundings->x0, $boundings->y1 - $height, $boundings->x1, $boundings->y1 ); $boundings->y1 -= $height + $this->properties['margin']; break; } $textBoundings = $renderer->drawBox( $textBoundings, $this->properties['background'], $this->properties['border'], $this->properties['borderWidth'], $this->properties['margin'], $this->properties['padding'] ); $renderer->drawText( $textBoundings, $this->properties['title'], ezcGraph::CENTER | ezcGraph::MIDDLE ); return $boundings; } } ?>