Added multi bar chart. Added margin options.

libraries/chart.lib.php

@@ -4,6 +4,7 @@ require_once './libraries/chart/pma_ofc_pie.php';
 
 require_once './libraries/chart/pma_pchart_pie.php';
 require_once './libraries/chart/pma_pchart_single_bar.php';
+require_once './libraries/chart/pma_pchart_multi_bar.php';
 require_once './libraries/chart/pma_pchart_stacked_bar.php';
 require_once './libraries/chart/pma_pchart_single_line.php';
 require_once './libraries/chart/pma_pchart_multi_line.php';
@@ -75,6 +76,11 @@ function PMA_chart_results($data, &$chartSettings)
         $chartSettings['type'] = 'bar';
     }
 
+    // set default bar type if needed
+    if ($chartSettings['type'] == 'bar' && empty($chartSettings['barType'])) {
+        $chartSettings['barType'] = 'stacked';
+    }
+
     if (!isset($data[0])) {
         // empty data
         return __('No data found for the chart.');
@@ -92,8 +98,9 @@ function PMA_chart_results($data, &$chartSettings)
             }
         }
 
-        switch ($chartSettings['type'])
-        {
+        $chartSettings['multi'] = false;
+
+        switch ($chartSettings['type']) {
             case 'bar':
             default:
                 $chart = new PMA_pChart_single_bar($chartTitle, $chartData, $chartSettings);
@@ -140,12 +147,25 @@ function PMA_chart_results($data, &$chartSettings)
             }
         }
 
-        switch ($chartSettings['type'])
-        {
+        $chartSettings['multi'] = true;
+
+        // determine the chart type
+        switch ($chartSettings['type']) {
             case 'bar':
             default:
-                $chart = new PMA_pChart_stacked_bar($chartTitle, $chartData, $chartSettings);
+
+                // determine the bar chart type
+                switch ($chartSettings['barType']) {
+                    case 'stacked':
+                    default:
+                        $chart = new PMA_pChart_stacked_bar($chartTitle, $chartData, $chartSettings);
+                        break;
+                    case 'multi':
+                        $chart = new PMA_pChart_multi_bar($chartTitle, $chartData, $chartSettings);
+                        break;
+                }
                 break;
+            
             case 'line':
                 $chart = new PMA_pChart_multi_line($chartTitle, $chartData, $chartSettings);
                 break;

libraries/chart/pma_pchart_chart.php

@@ -37,7 +37,7 @@ abstract class PMA_pChart_Chart extends PMA_Chart
         $this->settings['labelHeight'] = 20;
 
         // as in CSS (top, right, bottom, left)
-        $this->settings['areaMargins'] = array(20, 20, 40, 60);
+        $this->setAreaMargins(array(20, 20, 40, 60));
 
         // create pChart object
         $this->chart = new pChart($this->getWidth(), $this->getHeight());
@@ -138,6 +138,13 @@ abstract class PMA_pChart_Chart extends PMA_Chart
         return $this->settings['labelHeight'];
     }
 
+    protected function setAreaMargins($areaMargins)
+    {
+        if (!isset($this->settings['areaMargins'])) {
+            $this->settings['areaMargins'] = $areaMargins;
+        }
+    }
+
     protected function getAreaMargin($side)
     {
         return $this->settings['areaMargins'][$side];

libraries/chart/pma_pchart_multi.php

@@ -13,7 +13,7 @@ abstract class PMA_pChart_multi extends PMA_pChart_chart
         parent::__construct($titleText, $data, $options);
 
         // as in CSS (top, right, bottom, left)
-        $this->settings['legendMargins'] = array(20, 10, 0, 0);
+        $this->setLegendMargins(array(20, 10, 0, 0));
     }
 
     protected function prepareDataSet()
@@ -65,6 +65,13 @@ abstract class PMA_pChart_multi extends PMA_pChart_chart
         );
     }
 
+    protected function setLegendMargins($legendMargins)
+    {
+        if (!isset($this->settings['legendMargins'])) {
+            $this->settings['legendMargins'] = $legendMargins;
+        }
+    }
+
     protected function getLegendMargin($side)
     {
         return $this->settings['legendMargins'][$side];

libraries/chart/pma_pchart_multi_bar.php

@@ -0,0 +1,23 @@
+<?php
+
+require_once 'pma_pchart_multi.php';
+
+class PMA_pChart_multi_bar extends PMA_pChart_multi
+{
+    public function __construct($titleText, $data, $options = null)
+    {
+        parent::__construct($titleText, $data, $options);
+
+        $this->settings['scale'] = SCALE_NORMAL;
+    }
+
+    protected function drawChart()
+    {
+        parent::drawChart();
+
+        // Draw the bar chart
+        $this->chart->drawBarGraph($this->dataSet->GetData(),$this->dataSet->GetDataDescription(),70);
+    }
+}
+
+?>

tbl_chart.php

@@ -98,12 +98,43 @@ $url_params['reload'] = 1;
     <tr><td><label for="yLabel"><?php echo __("Y Axis label"); ?></label></td>
         <td><input type="text" name="chartSettings[yLabel]" id="yLabel" value="<?php echo $chartSettings['yLabel']; ?>" /></td>
     </tr>
+
+    <tr><td><label for="areaMargins"><?php echo __("Area margins"); ?></label></td>
+        <td>
+            <input type="text" name="chartSettings[areaMargins][]" size="2" value="<?php echo $chartSettings['areaMargins'][0]; ?>" />
+            <input type="text" name="chartSettings[areaMargins][]" size="2" value="<?php echo $chartSettings['areaMargins'][1]; ?>" />
+            <input type="text" name="chartSettings[areaMargins][]" size="2" value="<?php echo $chartSettings['areaMargins'][2]; ?>" />
+            <input type="text" name="chartSettings[areaMargins][]" size="2" value="<?php echo $chartSettings['areaMargins'][3]; ?>" />
+        </td>
+    </tr>
+
+    <?php if (isset($chartSettings['multi']) && $chartSettings['multi'] == true) { ?>
+    <tr><td><label for="legendMargins"><?php echo __("Legend margins"); ?></label></td>
+        <td>
+            <input type="text" name="chartSettings[legendMargins][]" size="2" value="<?php echo $chartSettings['legendMargins'][0]; ?>" />
+            <input type="text" name="chartSettings[legendMargins][]" size="2" value="<?php echo $chartSettings['legendMargins'][1]; ?>" />
+            <input type="text" name="chartSettings[legendMargins][]" size="2" value="<?php echo $chartSettings['legendMargins'][2]; ?>" />
+            <input type="text" name="chartSettings[legendMargins][]" size="2" value="<?php echo $chartSettings['legendMargins'][3]; ?>" />
+        </td>
+    </tr>
+    <?php } ?>
+
     <tr><td><label for="type"><?php echo __("Type"); ?></label></td>
         <td>
             <input type="radio" name="chartSettings[type]" value="bar" <?php echo ($chartSettings['type'] == 'bar' ? 'checked' : ''); ?>>Bar
             <input type="radio" name="chartSettings[type]" value="line" <?php echo ($chartSettings['type'] == 'line' ? 'checked' : ''); ?>>Line
         </td>
     </tr>
+
+    <?php if ($chartSettings['type'] == 'bar' && isset($chartSettings['multi']) && $chartSettings['multi'] == true) { ?>
+    <tr><td><label for="barType"><?php echo __("Bar type"); ?></label></td>
+        <td>
+            <input type="radio" name="chartSettings[barType]" value="stacked" <?php echo ($chartSettings['barType'] == 'stacked' ? 'checked' : ''); ?>>Stacked
+            <input type="radio" name="chartSettings[barType]" value="multi" <?php echo ($chartSettings['barType'] == 'multi' ? 'checked' : ''); ?>>Multi
+        </td>
+    </tr>
+    <?php } ?>
+    
     </table>
 
 </fieldset>