added first pChart charts.

libraries/chart/pChart/pCache.class

@@ -0,0 +1,119 @@
+<?php
+ /*
+     pCache - Faster renderding using data cache
+     Copyright (C) 2008 Jean-Damien POGOLOTTI
+     Version  1.1.2 last updated on 06/17/08
+
+     http://pchart.sourceforge.net
+
+     This program is free software: you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published by
+     the Free Software Foundation, either version 1,2,3 of the License, or
+     (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+     GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     Class initialisation :
+      pCache($CacheFolder="Cache/")
+     Cache management :
+      IsInCache($Data)
+      GetFromCache($ID,$Data)
+      WriteToCache($ID,$Data,$Picture)
+      DeleteFromCache($ID,$Data)
+      ClearCache()
+     Inner functions :
+      GetHash($ID,$Data)
+ */
+
+ /* pCache class definition */
+ class pCache
+  {
+   var $HashKey     = "";
+   var $CacheFolder = "Cache/";
+
+   /* Create the pCache object */
+   function pCache($CacheFolder="Cache/")
+    {
+     $this->CacheFolder = $CacheFolder;
+    }
+
+   /* This function is clearing the cache folder */
+   function ClearCache()
+    {
+     if ($handle = opendir($this->CacheFolder))
+      {
+       while (false !== ($file = readdir($handle)))
+        {
+         if ( $file != "." && $file != ".." )
+          unlink($this->CacheFolder.$file);
+        }
+       closedir($handle);
+      }
+    }
+
+   /* This function is checking if we have an offline version of this chart */
+   function IsInCache($ID,$Data,$Hash="")
+    {
+     if ( $Hash == "" )
+      $Hash = $this->GetHash($ID,$Data);
+
+     if ( file_exists($this->CacheFolder.$Hash) )
+      return(TRUE);
+     else
+      return(FALSE);
+    }
+
+   /* This function is making a copy of drawn chart in the cache folder */
+   function WriteToCache($ID,$Data,$Picture)
+    {
+     $Hash     = $this->GetHash($ID,$Data);
+     $FileName = $this->CacheFolder.$Hash;
+
+     imagepng($Picture->Picture,$FileName);
+    }
+
+   /* This function is removing any cached copy of this chart */
+   function DeleteFromCache($ID,$Data)
+    {
+     $Hash     = $this->GetHash($ID,$Data);
+     $FileName = $this->CacheFolder.$Hash;
+
+     if ( file_exists($FileName ) )
+      unlink($FileName);
+    }
+
+   /* This function is retrieving the cached picture if applicable */
+   function GetFromCache($ID,$Data)
+    {
+     $Hash     = $this->GetHash($ID,$Data);
+     if ( $this->IsInCache("","",$Hash ) )
+      {
+       $FileName = $this->CacheFolder.$Hash;
+
+       header('Content-type: image/png');
+       @readfile($FileName);
+       exit();
+      }
+    }
+
+   /* This function is building the graph unique hash key */
+   function GetHash($ID,$Data)
+    {
+     $mKey = "$ID";
+     foreach($Data as $key => $Values)
+      {
+       $tKey = "";
+       foreach($Values as $Serie => $Value)
+        $tKey = $tKey.$Serie.$Value;
+       $mKey = $mKey.md5($tKey);
+      }
+     return(md5($mKey));
+    }
+  }
+?>

libraries/chart/pChart/pData.class

@@ -0,0 +1,260 @@
+<?php
+ /*
+     pData - Simplifying data population for pChart
+     Copyright (C) 2008 Jean-Damien POGOLOTTI
+     Version  1.13 last updated on 08/17/08
+
+     http://pchart.sourceforge.net
+
+     This program is free software: you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published by
+     the Free Software Foundation, either version 1,2,3 of the License, or
+     (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+     GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     Class initialisation :
+      pData()
+     Data populating methods :
+      ImportFromCSV($FileName,$Delimiter=",",$DataColumns=-1,$HasHeader=FALSE,$DataName=-1)
+      AddPoint($Value,$Serie="Serie1",$Description="")
+     Series manipulation methods :
+      AddSerie($SerieName="Serie1")
+      AddAllSeries()
+      RemoveSerie($SerieName="Serie1")
+      SetAbsciseLabelSerie($SerieName = "Name")
+      SetSerieName($Name,$SerieName="Serie1")
+  +   SetSerieSymbol($Name,$Symbol)
+      SetXAxisName($Name="X Axis")
+      SetYAxisName($Name="Y Axis")
+      SetXAxisFormat($Format="number")
+      SetYAxisFormat($Format="number")
+      SetXAxisUnit($Unit="")
+      SetYAxisUnit($Unit="")
+      removeSerieName($SerieName)
+      removeAllSeries()
+     Data retrieval methods :
+      GetData()
+      GetDataDescription()
+ */
+
+ /* pData class definition */
+ class pData
+  {
+   var $Data;
+   var $DataDescription;
+
+   function pData()
+    {
+     $this->Data                           = "";
+     $this->DataDescription                = "";
+     $this->DataDescription["Position"]    = "Name";
+     $this->DataDescription["Format"]["X"] = "number";
+     $this->DataDescription["Format"]["Y"] = "number";
+     $this->DataDescription["Unit"]["X"]   = NULL;
+     $this->DataDescription["Unit"]["Y"]   = NULL;
+    }
+
+   function ImportFromCSV($FileName,$Delimiter=",",$DataColumns=-1,$HasHeader=FALSE,$DataName=-1)
+    {
+     $handle = @fopen($FileName,"r");
+     if ($handle)
+      {
+       $HeaderParsed = FALSE;
+       while (!feof($handle))
+        {
+         $buffer = fgets($handle, 4096);
+         $buffer = str_replace(chr(10),"",$buffer);
+         $buffer = str_replace(chr(13),"",$buffer);
+         $Values = split($Delimiter,$buffer);
+
+         if ( $buffer != "" )
+          {
+           if ( $HasHeader == TRUE && $HeaderParsed == FALSE )
+            {
+             if ( $DataColumns == -1 )
+              {
+               $ID = 1;
+               foreach($Values as $key => $Value)
+                { $this->SetSerieName($Value,"Serie".$ID); $ID++; }
+              }
+             else
+              {
+               $SerieName = "";
+
+               foreach($DataColumns as $key => $Value)
+                $this->SetSerieName($Values[$Value],"Serie".$Value);
+              }
+             $HeaderParsed = TRUE;
+            }
+           else
+            {
+             if ( $DataColumns == -1 )
+              {
+               $ID = 1;
+               foreach($Values as $key => $Value)
+                { $this->AddPoint(intval($Value),"Serie".$ID); $ID++; }
+              }
+             else
+              {
+               $SerieName = "";
+               if ( $DataName != -1 )
+                $SerieName = $Values[$DataName];
+
+               foreach($DataColumns as $key => $Value)
+                $this->AddPoint($Values[$Value],"Serie".$Value,$SerieName);
+              }
+            }
+          }
+        }
+       fclose($handle);
+      }
+    }
+
+   function AddPoint($Value,$Serie="Serie1",$Description="")
+    {
+     if (is_array($Value) && count($Value) == 1)
+      $Value = $Value[0];
+
+     $ID = 0;
+     for($i=0;$i<=count($this->Data);$i++)
+      { if(isset($this->Data[$i][$Serie])) { $ID = $i+1; } }
+
+     if ( count($Value) == 1 )
+      {
+       $this->Data[$ID][$Serie] = $Value;
+       if ( $Description != "" )
+        $this->Data[$ID]["Name"] = $Description;
+       elseif (!isset($this->Data[$ID]["Name"]))
+        $this->Data[$ID]["Name"] = $ID;
+      }
+     else
+      {
+       foreach($Value as $key => $Val)
+        {
+         $this->Data[$ID][$Serie] = $Val;
+         if (!isset($this->Data[$ID]["Name"]))
+          $this->Data[$ID]["Name"] = $ID;
+         $ID++;
+        }
+      }
+    }
+
+   function AddSerie($SerieName="Serie1")
+    {
+     if ( !isset($this->DataDescription["Values"]) )
+      {
+       $this->DataDescription["Values"][] = $SerieName;
+      }
+     else
+      {
+       $Found = FALSE;
+       foreach($this->DataDescription["Values"] as $key => $Value )
+        if ( $Value == $SerieName ) { $Found = TRUE; }
+
+       if ( !$Found )
+        $this->DataDescription["Values"][] = $SerieName;
+      }
+    }
+
+   function AddAllSeries()
+    {
+     unset($this->DataDescription["Values"]);
+
+     if ( isset($this->Data[0]) )
+      {
+       foreach($this->Data[0] as $Key => $Value)
+        {
+         if ( $Key != "Name" )
+          $this->DataDescription["Values"][] = $Key;
+        }
+      }
+    }
+
+   function RemoveSerie($SerieName="Serie1")
+    {
+     if ( !isset($this->DataDescription["Values"]) )
+      return(0);
+
+     $Found = FALSE;
+     foreach($this->DataDescription["Values"] as $key => $Value )
+      {
+       if ( $Value == $SerieName )
+        unset($this->DataDescription["Values"][$key]);
+      }
+    }
+
+   function SetAbsciseLabelSerie($SerieName = "Name")
+    {
+     $this->DataDescription["Position"] = $SerieName;
+    }
+
+   function SetSerieName($Name,$SerieName="Serie1")
+    {
+     $this->DataDescription["Description"][$SerieName] = $Name;
+    }
+
+   function SetXAxisName($Name="X Axis")
+    {
+     $this->DataDescription["Axis"]["X"] = $Name;
+    }
+
+   function SetYAxisName($Name="Y Axis")
+    {
+     $this->DataDescription["Axis"]["Y"] = $Name;
+    }
+
+   function SetXAxisFormat($Format="number")
+    {
+     $this->DataDescription["Format"]["X"] = $Format;
+    }
+
+   function SetYAxisFormat($Format="number")
+    {
+     $this->DataDescription["Format"]["Y"] = $Format;
+    }
+
+   function SetXAxisUnit($Unit="")
+    {
+     $this->DataDescription["Unit"]["X"] = $Unit;
+    }
+
+   function SetYAxisUnit($Unit="")
+    {
+     $this->DataDescription["Unit"]["Y"] = $Unit;
+    }
+
+   function SetSerieSymbol($Name,$Symbol)
+    {
+     $this->DataDescription["Symbol"][$Name] = $Symbol;
+    }
+
+   function removeSerieName($SerieName)
+    {
+     if ( isset($this->DataDescription["Description"][$SerieName]) )
+      unset($this->DataDescription["Description"][$SerieName]);
+    }
+
+   function removeAllSeries()
+    {
+     foreach($this->DataDescription["Values"] as $Key => $Value)
+      unset($this->DataDescription["Values"][$Key]);
+    }
+
+   function GetData()
+    {
+     return($this->Data);
+    }
+
+   function GetDataDescription()
+    {
+     return($this->DataDescription);
+    }
+  }
+?>

libraries/chart/pma_pchart_chart.php

@@ -0,0 +1,25 @@
+<?php
+
+require_once 'pma_chart.php';
+
+/*
+ * Base class for every chart implemented using pChart.
+ */
+class PMA_pChart_Chart extends PMA_Chart
+{
+    protected $imageEncoded;
+
+    protected $fontPath = './libraries/chart/pChart/fonts/';
+
+    function __construct($options = null)
+    {
+        parent::__construct($options);
+    }    
+
+    function toString()
+    {
+        return '<img id="pChartPicture1" src="data:image/png;base64,'.$this->imageEncoded.'" />';
+    }
+}
+
+?>

libraries/chart/pma_pchart_pie.php

@@ -0,0 +1,68 @@
+<?php
+
+require_once 'pma_pchart_chart.php';
+
+class PMA_pChart_Pie extends PMA_pChart_Chart
+{
+    private $border1Width = 7;
+    private $border2Width = 5;
+
+    function __construct($titleText, $data, $options = null)
+    {
+        parent::__construct($options);
+
+        require_once './libraries/chart/pChart/pData.class';
+        require_once './libraries/chart/pChart/pChart.class';
+
+        // Dataset definition 
+        $DataSet = new pData;
+        $DataSet->AddPoint(array_values($data),"Serie1");
+        $DataSet->AddPoint(array_keys($data),"Serie2");
+        $DataSet->AddAllSeries();
+        $DataSet->SetAbsciseLabelSerie("Serie2");
+
+        // Initialise the graph
+        $Test = new pChart($this->width, $this->height);
+        foreach ($this->colors as $key => $color) {
+            $Test->setColorPalette(
+                    $key,
+                    hexdec(substr($color, 1, 2)),
+                    hexdec(substr($color, 3, 2)),
+                    hexdec(substr($color, 5, 2))
+            );
+        }
+        $Test->setFontProperties($this->fontPath.'tahoma.ttf', 8);
+        $Test->drawFilledRoundedRectangle(
+                $this->border1Width,
+                $this->border1Width,
+                $this->width - $this->border1Width,
+                $this->height - $this->border1Width,
+                5,240,240,240);
+        $Test->drawRoundedRectangle(
+                $this->border1Width,
+                $this->border1Width,
+                $this->width - $this->border1Width,
+                $this->height - $this->border1Width,
+                5,230,230,230);
+
+        // Draw the pie chart
+        $Test->AntialiasQuality = 0;
+        $Test->setShadowProperties(2,2,200,200,200);
+        //$Test->drawFlatPieGraphWithShadow($DataSet->GetData(),$DataSet->GetDataDescription(),180,160,120,PIE_PERCENTAGE,8);
+        //$Test->drawBasicPieGraph($DataSet->GetData(),$DataSet->GetDataDescription(),180,160,120,PIE_PERCENTAGE,255,255,218,2);
+        $Test->drawPieGraph($DataSet->GetData(),$DataSet->GetDataDescription(),180,160,120,PIE_PERCENTAGE,FALSE,60,30,10,1);
+        $Test->clearShadow();
+
+        $Test->drawTitle(10,20,$titleText,0,0,0);
+        $Test->drawPieLegend(340,15,$DataSet->GetData(),$DataSet->GetDataDescription(),250,250,250);
+
+        ob_start();
+        imagepng($Test->Picture);
+        $output = ob_get_contents();
+        ob_end_clean();
+
+        $this->imageEncoded = base64_encode($output);
+    }
+}
+
+?>