utiliser imagemagick pour générer les images au lieu de GD

[xpoitau]

Voici ma petite bidouille pour remplacer GD par imagemagick dans images.inc.php

remplacer la fonction
----

   function imageResize($sourceFile, $destFile, $destWidth = NULL, $destHeight = NULL, $fileType = 'jpg')
{
   list($sourceWidth, $sourceHeight, $type, $attr) = getimagesize($sourceFile);
   if (!$sourceWidth)
       return false;
   if ($destWidth == NULL) $destWidth = $sourceWidth;
   if ($destHeight == NULL) $destHeight = $sourceHeight;

   $sourceImage = createSrcImage($type, $sourceFile);

   $widthDiff = $destWidth / $sourceWidth;
   $heightDiff = $destHeight / $sourceHeight;

   if ($widthDiff > 1 AND $heightDiff > 1)
   {
       $nextWidth = $sourceWidth;
       $nextHeight = $sourceHeight;
   }
   else
   {
       if (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 2 OR (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 0 AND $widthDiff > $heightDiff))
       {
           $nextHeight = $destHeight;
           $nextWidth = intval(($sourceWidth * $nextHeight) / $sourceHeight);
           $destWidth = (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 0 ? $destWidth : $nextWidth);
       }
       else
       {
           $nextWidth = $destWidth;
           $nextHeight = intval($sourceHeight * $destWidth / $sourceWidth);
           $destHeight = (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 0 ? $destHeight : $nextHeight);
       }
   }

   $borderWidth = intval(($destWidth - $nextWidth) / 2);
   $borderHeight = intval(($destHeight - $nextHeight) / 2);

   /*
   $destImage = imagecreatetruecolor($destWidth, $destHeight);

   $white = imagecolorallocate($destImage, 255, 255, 255);
   imagefill($destImage, 0, 0, $white);

   imagecopyresampled($destImage, $sourceImage, $borderWidth, $borderHeight, 0, 0, $nextWidth, $nextHeight, $sourceWidth, $sourceHeight);
   imagecolortransparent($destImage, $white);
   */

   // ajout pour imagemagick
   $bordure = $borderWidth+$borderHeight;
   $cmd = "convert -size ".$sourceWidth."x".$sourceHeight." ".$sourceFile." -resize ".$nextWidth."x".$nextHeight." -bordercolor white -border ".$bordure."x".$bordure." -gravity center -crop ".$destWidth."x".$destHeight."+0+0 ".$destFile;
   exec($cmd);

   return (returnDestImage($fileType, $destImage, $destFile));
}

et aussi la fonction :

function returnDestImage($type, $ressource, $filename)
{
   /*
   $flag = false;
   switch ($type)
   {
       case 'gif':
           $flag = imagegif($ressource, $filename);
           break;
       case 'png':
           $flag = imagepng($ressource, $filename, 7);
           break;
       case 'jpeg':
       default:
           $flag = imagejpeg($ressource, $filename, 90);
           break;
   }
   imagedestroy($ressource);
   return $flag;
   */
   if (file_exists("$filename")) {
       return true;
   } else {
       return false;
   }

}

bien sûr, il faut avoir imagemagick installé et la possibilité d'exécuter des commandes en php.

Xavier
axome.com

images.inc.php

[Yoya]

Pas testé mais excellente initiative, merci à toi.

Cdlt,
Pierre.

[Julien Breux]

Très bon sachant que GD est un peu...

[NOTE]Sorry Thomas :S[/NOTE]

[jamesie]

fantastic this worked first time thanks!!

[jamesie]

I did generate thumbnails and lost them all! I get permission problem, maybe its not related but can you suggest what I should check please?

[yvesbj]

Bonjour, je connais pas imagemagick, pourriez vous me dire quelles sont les différences svp ?

[jamesie]

http://www.imagemagick.org/script/index.php Je ne sais pas le functionalite en detail mais le function Regenerate Thumbnails ne marche pas. J'ai PHP 5.2.9 et peut etre ca cause le probleme. Est ce que tu a un bon solution?

Cheers James