fixes #4206 it is now possible to render the graphs, fix is verified on the mentioned Piwik instance

2 files changed, 30 insertions, 10 deletions

diff --git a/libs/pChart2.1.3/class/pDraw.class.php b/libs/pChart2.1.3/class/pDraw.class.php
index 8906d7d5d0..fdffa55644 100644
--- a/libs/pChart2.1.3/class/pDraw.class.php
+++ b/libs/pChart2.1.3/class/pDraw.class.php
@@ -1016,17 +1016,27 @@
      if ( $this->Shadow && $this->ShadowX != 0 && $this->ShadowY != 0 )
       {
        $C_ShadowColor = $this->allocateColor($this->Picture,$this->ShadowR,$this->ShadowG,$this->ShadowB,$this->Shadowa);
-       imagettftext($this->Picture,$FontSize,$Angle,$X+$this->ShadowX,$Y+$this->ShadowY,$C_ShadowColor,$FontName,$Text);
+       imagettftext($this->Picture,$FontSize,$Angle,$X+$this->ShadowX,$Y+$this->ShadowY,$C_ShadowColor,$FontName,$this->getEncodedText($Text));
       }
 
      $C_TextColor = $this->AllocateColor($this->Picture,$R,$G,$B,$Alpha);
-     imagettftext($this->Picture,$FontSize,$Angle,$X,$Y,$C_TextColor,$FontName,$Text);
+     imagettftext($this->Picture,$FontSize,$Angle,$X,$Y,$C_TextColor,$FontName,$this->getEncodedText($Text));
 
      $this->Shadow = $Shadow;
 
      return($TxtPos);
     }
 
+     function getEncodedText($text)
+     {
+         $gdinfo = gd_info();
+         if (!empty($gdinfo['JIS-mapped Japanese Font Support'])) {
+             return mb_convert_encoding($text, "SJIS", "UTF-8");
+         }
+
+         return $text;
+     }
+
    /* Draw a gradient within a defined area */
    function drawGradientArea($X1,$Y1,$X2,$Y2,$Direction,$Format="")
     {
@@ -1388,7 +1398,7 @@
 
      $this->drawArrow($X2,$Y2,$X1,$Y1,$Format);
 
-     $Size	= imagettfbbox($FontSize,0,$FontName,$Text);
+     $Size	= imagettfbbox($FontSize,0,$FontName,$this->getEncodedText($Text));
      $TxtWidth	= max(abs($Size[2]-$Size[0]),abs($Size[0]-$Size[6]));
      $TxtHeight	= max(abs($Size[1]-$Size[7]),abs($Size[3]-$Size[1]));
 
diff --git a/libs/pChart2.1.3/class/pImage.class.php b/libs/pChart2.1.3/class/pImage.class.php
index 6c9d318ba8..6ad1151b69 100644
--- a/libs/pChart2.1.3/class/pImage.class.php
+++ b/libs/pChart2.1.3/class/pImage.class.php
@@ -97,7 +97,7 @@
        imagealphablending($this->Picture,FALSE);
        imagefilledrectangle($this->Picture, 0,0,$XSize, $YSize, imagecolorallocatealpha($this->Picture, 255, 255, 255, 127));
        imagealphablending($this->Picture,TRUE);
-       imagesavealpha($this->Picture,true); 
+       imagesavealpha($this->Picture,true);
       }
      else
       {
@@ -190,7 +190,7 @@
    /* Return the surrounding box of text area */
    function getTextBox_deprecated($X,$Y,$FontName,$FontSize,$Angle,$Text)
     {
-     $Size    = imagettfbbox($FontSize,$Angle,$FontName,$Text);
+     $Size    = imagettfbbox($FontSize,$Angle,$FontName,$this->getEncodedText($Text));
      $Width   = $this->getLength($Size[0],$Size[1],$Size[2],$Size[3])+1;
      $Height  = $this->getLength($Size[2],$Size[3],$Size[4],$Size[5])+1;
 
@@ -205,10 +205,20 @@
      return($RealPos);
     }
 
+     function getEncodedText($text)
+     {
+         $gdinfo = gd_info();
+         if (!empty($gdinfo['JIS-mapped Japanese Font Support'])) {
+             return mb_convert_encoding($text, "SJIS", "UTF-8");
+         }
+
+         return $text;
+     }
+
    /* Return the surrounding box of text area */
    function getTextBox($X,$Y,$FontName,$FontSize,$Angle,$Text)
     {
-     $coords = imagettfbbox($FontSize, 0, $FontName, $Text);
+     $coords = imagettfbbox($FontSize, 0, $FontName, $this->getEncodedText($Text));
 
      $a = deg2rad($Angle); $ca = cos($a); $sa = sin($a); $RealPos = array();
      for($i = 0; $i < 7; $i += 2)
@@ -247,7 +257,7 @@
 
      if ( $FontName != NULL  )
       $this->FontName = $FontName;
- 
+
      if ( $FontSize != NULL  )
       $this->FontSize = $FontSize;
     }
@@ -332,7 +342,7 @@
      if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
 
      if ( is_array($NewTitle) ) { $NewTitle = $this->removeVOIDFromArray($OldTitle, $NewTitle); }
- 
+
      if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
       {
        if(!isset($_SESSION)) { return(-1); }
@@ -373,7 +383,7 @@
      if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
 
      $Values = $this->removeVOIDFromArray($Title, $Values);
-     $ID = 0; 
+     $ID = 0;
      if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
       {
        if(!isset($_SESSION)) { return(-1); }
@@ -460,7 +470,7 @@
 
      $Picture = imagecreatetruecolor($this->XSize,$this->YSize);
      imagecopy($Picture,$this->Picture,0,0,0,0,$this->XSize,$this->YSize);
-     
+
      for($i=1;$i<=$Height;$i++)
       {
        if ( $Y+($i-1) < $this->YSize && $Y-$i > 0 ) { imagecopymerge($Picture,$this->Picture,$X,$Y+($i-1),$X,$Y-$i,$Width,1,$StartAlpha-$AlphaStep*$i); }