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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @package phpMyAdmin
*/
/**
*
*/
require_once 'pma_pchart_chart.php';
/**
* Base class for every chart that uses multiple series.
* All of these charts will require legend box.
* @abstract
* @package phpMyAdmin
*/
abstract class PMA_pChart_multi extends PMA_pChart_chart
{
public function __construct($data, $options = null)
{
parent::__construct($data, $options);
// as in CSS (top, right, bottom, left)
$this->setLegendMargins(array(20, 10, 0, 0));
}
/**
* data set preparation for multi serie graphs
*/
protected function prepareDataSet()
{
$values = array_values($this->data);
$keys = array_keys($this->data);
// Dataset definition
$this->dataSet->AddPoint($values[0], "Keys");
$i = 0;
foreach ($values[1] as $seriesName => $seriesData) {
$this->dataSet->AddPoint($seriesData, "Values".$i);
$this->dataSet->SetSerieName($seriesName, "Values".$i);
$i++;
}
$this->dataSet->AddAllSeries();
$this->dataSet->RemoveSerie("Keys");
$this->dataSet->SetAbsciseLabelSerie("Keys");
$xLabel = $this->getXLabel();
if (empty($xLabel)) {
$this->setXLabel($keys[0]);
}
$yLabel = $this->getYLabel();
if (empty($yLabel)) {
$this->setYLabel($keys[1]);
}
$this->dataSet->SetXAxisName($this->getXLabel());
$this->dataSet->SetYAxisName($this->getYLabel());
}
/**
* set graph area dimensions with respect to legend box size
*/
protected function setGraphAreaDimensions()
{
$this->chart->setGraphArea(
$this->getAreaMargin(LEFT),
$this->getLabelHeight() + $this->getAreaMargin(TOP),
$this->getWidth() - $this->getAreaMargin(RIGHT) - $this->getLegendBoxWidth() - $this->getLegendMargin(LEFT) - $this->getLegendMargin(RIGHT),
$this->getHeight() - $this->getAreaMargin(BOTTOM)
);
}
/**
* multi serie charts need a legend. draw it
*/
protected function drawChart()
{
$this->drawLegend();
}
/**
* draws a legend
*/
protected function drawLegend()
{
// Draw the legend
$this->chart->drawLegend(
$this->getWidth() - $this->getLegendMargin(RIGHT) - $this->getLegendBoxWidth(),
$this->getLabelHeight() + $this->getLegendMargin(TOP),
$this->dataSet->GetDataDescription(),
250,250,250,50,50,50
);
}
protected function setLegendMargins($legendMargins)
{
if (!isset($this->settings['legendMargins'])) {
$this->settings['legendMargins'] = $legendMargins;
}
}
protected function getLegendMargin($side)
{
return $this->settings['legendMargins'][$side];
}
protected function getLegendBoxWidth()
{
$legendSize = $this->chart->getLegendBoxSize($this->dataSet->GetDataDescription());
return $legendSize[0];
}
}
?>
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