libraries/chart/pma_pchart_multi.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * @package phpMyAdmin
   5  */
   6
   7 /**
   8  *
   9  */
  10 require_once 'pma_pchart_chart.php';
  11
  12 /**
  13  * Base class for every chart that uses multiple series.
  14  * All of these charts will require legend box.
  15  * @abstract
  16  * @package phpMyAdmin
  17  */
  18 abstract class PMA_pChart_multi extends PMA_pChart_chart
  19 {
  20     public function __construct($data, $options = null)
  21     {
  22         parent::__construct($data, $options);
  23
  24         // as in CSS (top, right, bottom, left)
  25         $this->setLegendMargins(array(20, 10, 0, 0));
  26     }
  27
  28     /**
  29      * data set preparation for multi serie graphs
  30      */
  31     protected function prepareDataSet()
  32     {
  33         $values = array_values($this->data);
  34         $keys = array_keys($this->data);
  35
  36         // Dataset definition
  37         $this->dataSet->AddPoint($values[0], "Keys");
  38
  39         $i = 0;
  40         foreach ($values[1] as $seriesName => $seriesData) {
  41             $this->dataSet->AddPoint($seriesData, "Values".$i);
  42             $this->dataSet->SetSerieName($seriesName, "Values".$i);
  43             $i++;
  44         }
  45         $this->dataSet->AddAllSeries();
  46
  47         $this->dataSet->RemoveSerie("Keys");
  48         $this->dataSet->SetAbsciseLabelSerie("Keys");
  49
  50         $xLabel = $this->getXLabel();
  51         if (empty($xLabel)) {
  52             $this->setXLabel($keys[0]);
  53         }
  54         $yLabel = $this->getYLabel();
  55         if (empty($yLabel)) {
  56             $this->setYLabel($keys[1]);
  57         }
  58
  59         $this->dataSet->SetXAxisName($this->getXLabel());
  60         $this->dataSet->SetYAxisName($this->getYLabel());
  61     }
  62
  63     /**
  64      * set graph area dimensions with respect to legend box size
  65      */
  66     protected function setGraphAreaDimensions()
  67     {
  68         $this->chart->setGraphArea(
  69                 $this->getAreaMargin(LEFT),
  70                 $this->getLabelHeight() + $this->getAreaMargin(TOP),
  71                 $this->getWidth() - $this->getAreaMargin(RIGHT) - $this->getLegendBoxWidth() - $this->getLegendMargin(LEFT) - $this->getLegendMargin(RIGHT),
  72                 $this->getHeight() - $this->getAreaMargin(BOTTOM)
  73         );
  74     }
  75
  76     /**
  77      * multi serie charts need a legend. draw it
  78      */
  79     protected function drawChart()
  80     {
  81         $this->drawLegend();
  82     }
  83
  84     /**
  85      * draws a legend
  86      */
  87     protected function drawLegend()
  88     {
  89         // Draw the legend
  90         $this->chart->drawLegend(
  91                 $this->getWidth() - $this->getLegendMargin(RIGHT) - $this->getLegendBoxWidth(),
  92                 $this->getLabelHeight() + $this->getLegendMargin(TOP),
  93                 $this->dataSet->GetDataDescription(),
  94                 250,250,250,50,50,50
  95         );
  96     }
  97
  98     protected function setLegendMargins($legendMargins)
  99     {
 100         if (!isset($this->settings['legendMargins'])) {
 101             $this->settings['legendMargins'] = $legendMargins;
 102         }
 103     }
 104
 105     protected function getLegendMargin($side)
 106     {
 107         return $this->settings['legendMargins'][$side];
 108     }
 109
 110     protected function getLegendBoxWidth()
 111     {
 112         $legendSize = $this->chart->getLegendBoxSize($this->dataSet->GetDataDescription());
 113         return $legendSize[0];
 114     }
 115 }
 116
 117 ?>