Viewing file:  pma_pchart_pie.php (3.13 KB) -rw-r--r--
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @package phpMyAdmin
*/
/**
*
*/
require_once 'pma_pchart_multi.php';
/**
* implements pie chart
* @package phpMyAdmin
*/
class PMA_pChart_Pie extends PMA_pChart_multi
{
public function __construct($data, $options = null)
{
// limit data size, no more than 18 pie slices
$data = array_slice($data, 0, 18, true);
parent::__construct($data, $options);
$this->setAreaMargins(array(20, 10, 20, 20));
}
/**
* prepare data set for the pie chart
*/
protected function prepareDataSet()
{
// Dataset definition
$this->dataSet->AddPoint(array_values($this->data), "Values");
$this->dataSet->AddPoint(array_keys($this->data), "Keys");
$this->dataSet->AddAllSeries();
$this->dataSet->SetAbsciseLabelSerie("Keys");
}
/**
* graph area for the pie chart does not include grid lines
*/
protected function drawGraphArea()
{
$this->chart->drawGraphArea(
$this->getGraphAreaColor(RED),
$this->getGraphAreaColor(GREEN),
$this->getGraphAreaColor(BLUE),
FALSE
);
if($this->settings['gradientIntensity']>0)
$this->chart->drawGraphAreaGradient(
$this->getGraphAreaGradientColor(RED),
$this->getGraphAreaGradientColor(GREEN),
$this->getGraphAreaGradientColor(BLUE),
$this->settings['gradientIntensity']
);
else
$this->chart->drawGraphArea(
$this->getGraphAreaGradientColor(RED),
$this->getGraphAreaGradientColor(GREEN),
$this->getGraphAreaGradientColor(BLUE)
);
}
/**
* draw the pie chart
*/
protected function drawChart()
{
parent::drawChart();
// draw pie chart in the middle of graph area
$middleX = ($this->chart->GArea_X1 + $this->chart->GArea_X2) / 2;
$middleY = ($this->chart->GArea_Y1 + $this->chart->GArea_Y2) / 2;
$this->chart->drawPieGraph(
$this->dataSet->GetData(),
$this->dataSet->GetDataDescription(),
$middleX,
// pie graph is skewed. Upper part is shorter than the
// lower part. This is why we set an offset to the
// Y middle coordiantes.
$middleY - 15,
120, PIE_PERCENTAGE, FALSE, 60, 30, 10, 1);
}
/**
* draw legend for the pie chart
*/
protected function drawLegend()
{
$this->chart->drawPieLegend(
$this->getWidth() - $this->getLegendMargin(RIGHT) - $this->getLegendBoxWidth(),
$this->getLabelHeight() + $this->getLegendMargin(TOP),
$this->dataSet->GetData(),
$this->dataSet->GetDataDescription(),
250, 250, 250);
}
protected function getLegendBoxWidth()
{
$legendSize = $this->chart->getPieLegendBoxSize($this->dataSet->GetData());
return $legendSize[0];
}
}
?>
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