/**
* Prepare bar/line chart specific data and parameters
*
* Data can be an array of y values, or an array of [label, value] pairs;
* While labels are used only on the first series with labels on
* subsequent series being ignored
*
* @since 1.8
*
* @param array $rawdata label => value
* @return array
*/
private function prepareBarData($rawdata)
{
// Init
$total = 0;
$mode = 'single';
// Find min and max values to determine the graphs axis parameter
$maxValue = count($rawdata) == 0 ? 0 : max($rawdata);
if ($this->params['min'] === false) {
$minValue = count($rawdata) == 0 ? 0 : min($rawdata);
} else {
$minValue = $this->params['min'];
}
// Get number ticks
$data['numbersticks'] = SRFjqPlot::getNumbersTicks($minValue, $maxValue);
// Reorganize the data in accordance with the bar/line chart req.
foreach ($rawdata as $key => $value) {
if ($value >= $this->params['min']) {
$data['series'][] = array($key, $value);
$total = $total + $value;
}
}
// Bar/line module
SMWOutputs::requireResource('ext.srf.jqplot.bar');
// Highlighter plugin
if ($this->params['highlighter']) {
SMWOutputs::requireResource('ext.srf.jqplot.highlighter');
}
// Pointlabels plugin
if (in_array($this->params['datalabels'], array('value', 'label', 'percent'))) {
SMWOutputs::requireResource('ext.srf.jqplot.pointlabels');
}
return array('data' => array($data['series']), 'ticks' => $data['numbersticks'], 'labels' => array_keys($data['series']), 'numbers' => array_values($data['series']), 'max' => $maxValue, 'total' => $total, 'mode' => $mode, 'series' => array(), 'renderer' => $this->params['charttype'], 'parameters' => $this->addCommonOptions());
}
/**
* Fetch numbers ticks
*
* @since 1.8
*
* @param array $data
*/
protected function getNumbersTicks(array $data)
{
// Only look for numeric values that have been stored
$numerics = array_values($data['series']);
// Find min and max values to determine the graphs axis parameter
$maxValue = count($numerics) == 0 ? 0 : max(array_map("max", $numerics));
if ($this->params['min'] === false) {
$minValue = count($numerics) == 0 ? 0 : min(array_map("min", $numerics));
} else {
$minValue = $this->params['min'];
}
// Get ticks info
$data['numbersticks'] = SRFjqPlot::getNumbersTicks($minValue, $maxValue);
$data['total'] = array_sum(array_map("array_sum", $numerics));
return $data;
}
