libraries/chart/pma_pchart_multi.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * @author Martynas Mickevicius <mmartynas@gmail.com>
   5  * @package phpMyAdmin
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once 'pma_pchart_chart.php';
  12
  13 /**
  14  * Base class for every chart that uses multiple series.
  15  * All of these charts will require legend box.
  16  * @abstract
  17  * @package phpMyAdmin
  18  */
  19 abstract class PMA_pChart_multi extends PMA_pChart_chart
  20 {
  21     public function __construct($data, $options = null)
  22     {
  23         parent::__construct($data, $options);
  24
  25         // as in CSS (top, right, bottom, left)
  26         $this->setLegendMargins(array(20, 10, 0, 0));
  27     }
  28
  29     /**
  30      * data set preparation for multi serie graphs
  31      */
  32     protected function prepareDataSet()
  33     {
  34         $values = array_values($this->data);
  35         $keys = array_keys($this->data);
  36
  37         // Dataset definition
  38         $this->dataSet->AddPoint($values[0], "Keys");
  39
  40         $i = 0;
  41         foreach ($values[1] as $seriesName => $seriesData) {
  42             $this->dataSet->AddPoint($seriesData, "Values".$i);
  43             $this->dataSet->SetSerieName($seriesName, "Values".$i);
  44             $i++;
  45         }
  46         $this->dataSet->AddAllSeries();
  47
  48         $this->dataSet->RemoveSerie("Keys");
  49         $this->dataSet->SetAbsciseLabelSerie("Keys");
  50
  51         $xLabel = $this->getXLabel();
  52         if (empty($xLabel)) {
  53             $this->setXLabel($keys[0]);
  54         }
  55         $yLabel = $this->getYLabel();
  56         if (empty($yLabel)) {
  57             $this->setYLabel($keys[1]);
  58         }
  59
  60         $this->dataSet->SetXAxisName($this->getXLabel());
  61         $this->dataSet->SetYAxisName($this->getYLabel());
  62     }
  63
  64     /**
  65      * set graph area dimensions with respect to legend box size
  66      */
  67     protected function setGraphAreaDimensions()
  68     {
  69         $this->chart->setGraphArea(
  70                 $this->getAreaMargin(LEFT),
  71                 $this->getLabelHeight() + $this->getAreaMargin(TOP),
  72                 $this->getWidth() - $this->getAreaMargin(RIGHT) - $this->getLegendBoxWidth() - $this->getLegendMargin(LEFT) - $this->getLegendMargin(RIGHT),
  73                 $this->getHeight() - $this->getAreaMargin(BOTTOM)
  74         );
  75     }
  76
  77     /**
  78      * multi serie charts need a legend. draw it
  79      */
  80     protected function drawChart()
  81     {
  82         $this->drawLegend();
  83     }
  84
  85     /**
  86      * draws a legend
  87      */
  88     protected function drawLegend()
  89     {
  90         // Draw the legend
  91         $this->chart->drawLegend(
  92                 $this->getWidth() - $this->getLegendMargin(RIGHT) - $this->getLegendBoxWidth(),
  93                 $this->getLabelHeight() + $this->getLegendMargin(TOP),
  94                 $this->dataSet->GetDataDescription(),
  95                 250,250,250,50,50,50
  96         );
  97     }
  98
  99     protected function setLegendMargins($legendMargins)
 100     {
 101         if (!isset($this->settings['legendMargins'])) {
 102             $this->settings['legendMargins'] = $legendMargins;
 103         }
 104     }
 105
 106     protected function getLegendMargin($side)
 107     {
 108         return $this->settings['legendMargins'][$side];
 109     }
 110
 111     protected function getLegendBoxWidth()
 112     {
 113         $legendSize = $this->chart->getLegendBoxSize($this->dataSet->GetDataDescription());
 114         return $legendSize[0];
 115     }
 116 }
 117
 118 ?>