SemanticResultFormats/jqPlot/SRF_jqPlotPie.php

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<?php

class SRFjqPlotPie extends SMWAggregatablePrinter {
        
        protected static $m_piechartnum = 1;
        
        protected $m_width;
        protected $m_height;
        protected $m_charttitle;

        protected function handleParameters( array $params, $outputmode ) {
                parent::handleParameters( $params, $outputmode );
                
                $this->m_width = $this->m_params['width'];
                $this->m_height = $this->m_params['height'];
                $this->m_charttitle = $this->m_params['charttitle'];
        }

        public function getName() {
                return wfMsg( 'srf_printername_jqplotpie' );
        }

        protected function loadJavascriptAndCSS() {
                global $wgOut;
                $wgOut->addModules( 'ext.srf.jqplot' );
                $wgOut->addModules( 'ext.srf.jqplotpie' );
        }

        protected function addResources() {
                if ( self::$m_piechartnum > 1 ) {
                        return;
                }

                // MW 1.17 +
                if ( class_exists( 'ResourceLoader' ) ) {
                        $this->loadJavascriptAndCSS();
                        return;
                }
                
                global $wgOut, $srfgScriptPath;
                global $srfgJQPlotIncluded;

                $wgOut->includeJQuery();

                if ( !$srfgJQPlotIncluded ) {
                        $srfgJQPlotIncluded = true;
                        $wgOut->addScript( '<!--[if IE]><script language="javascript" type="text/javascript" src="' . $srfgScriptPath . '/jqPlot/excanvas.js"></script><![endif]-->' );
                        $wgOut->addScriptFile( "$srfgScriptPath/jqPlot/jquery.jqplot.js" );
                }

                $wgOut->addScriptFile( "$srfgScriptPath/jqPlot/jqplot.pieRenderer.js" );

                // CSS file
                $wgOut->addExtensionStyle( "$srfgScriptPath/jqPlot/jquery.jqplot.css" );
        }
        
        protected function getFormatOutput( array $data ) {
                $json = array();
                
                foreach ( $data as $name => $value ) {
                        $json[] = array( $name, $value );
                }
                
                $pie_data_str = '[' . FormatJson::encode( $json ) . ']';
                $pieID = 'pie' . self::$m_piechartnum;
                
                self::$m_piechartnum++;

    $chartlegend    = FormatJson::encode( $this->params['chartlegend'] );
    $legendlocation = FormatJson::encode( $this->params['legendlocation'] );
                $datalabels     = FormatJson::encode( $this->params['datalabels'] );
                $datalabeltype  = FormatJson::encode( $this->params['datalabeltype'] );

                $js_pie =<<<END
<script type="text/javascript">
jQuery(document).ready(function(){
        jQuery.jqplot.config.enablePlugins = true;
        plot1 = jQuery.jqplot('$pieID', $pie_data_str, {
                title: '$this->m_charttitle',
                seriesDefaults: {
                        renderer: jQuery.jqplot.PieRenderer,
                        rendererOptions: {
                          showDataLabels: $datalabels,
                          dataLabels: $datalabeltype,
                                sliceMargin:2
                        }
                },
                        legend: { show:$chartlegend, location: $legendlocation }
        });
});
</script>
END;
                global $wgOut;
                $wgOut->addScript( $js_pie );

                $this->isHTML = true;
                
                return Html::element(
                        'div',
                        array(
                                'id' => $pieID,
                                'style' => Sanitizer::checkCss( "margin-top: 20px; margin-left: 20px; width: {$this->m_width}px; height: {$this->m_height}px;" )
                        )
                );
        }

        public function getParameters() {
                $params = parent::getParameters();
                
                $params['height'] = new Parameter( 'height', Parameter::TYPE_INTEGER, 400 );
                $params['height']->setMessage( 'srf_paramdesc_chartheight' );

                // TODO: this is a string to allow for %, but better handling would be nice
                $params['width'] = new Parameter( 'width', Parameter::TYPE_STRING, '400' );
                $params['width']->setMessage( 'srf_paramdesc_chartwidth' );

                $params['charttitle'] = new Parameter( 'charttitle', Parameter::TYPE_STRING, ' ' );
                $params['charttitle']->setMessage( 'srf_paramdesc_charttitle' );
                
                $params['distributionlimit']->setDefault( 13 );

                $params['chartlegend'] = new Parameter( 'chartlegend', Parameter::TYPE_BOOLEAN, true );
                $params['chartlegend']->setMessage( 'srf-paramdesc-chartlegend' );

                $params['legendlocation'] = new Parameter( 'legendlocation', Parameter::TYPE_STRING, 'ne' );
                $params['legendlocation']->setMessage( 'srf-paramdesc-legendlocation' );
                $params['legendlocation']->addCriteria( new CriterionInArray( 'nw','n', 'ne', 'e', 'se', 's', 'sw', 'w' ) );

                $params['datalabels'] = new Parameter( 'datalabels', Parameter::TYPE_BOOLEAN, false );
                $params['datalabels']->setMessage( 'srf-paramdesc-datalabels' );

                $params['datalabeltype'] = new Parameter( 'datalabeltype', Parameter::TYPE_STRING, ' ' );
                $params['datalabeltype']->setMessage( 'srf-paramdesc-datalabeltype' );
                $params['datalabeltype']->addCriteria( new CriterionInArray( 'percent','value', 'label' ) );
                
                
                return $params;
        }

}

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