Code Samples/Resize image

From PhalangerWiki

System.Drawing: Resize image

The function for image resizing using System.Drawing:

use System\Drawing;
use System\Drawing\Bitmap;
use System\Drawing\Graphics;
use System\Drawing\Rectangle;
 
/**
 * Resize image using Bitmap and Graphics classes
 * from the System:::Drawing namespace
 *
 * @param string $from   File name of the source image
 * @param string $to     Target file name
 * @param string $wid    Target width
 * @param string $hgt    Target height
 *
 * @author Tomas Petricek <tomas@tomasp.net>
 */
function resize_imageSysDraw($from,$to,$wid,$hgt)
{
  $bmp = Bitmap::FromFile($from);
  $new = new Bitmap($wid, $hgt);
  $gr = Graphics::FromImage($new);
  $gr->DrawImage($bmp, 
    new Rectangle(0,0,$wid,$hgt), 
    new Rectangle(0,0,$bmp->Width,$bmp->Height),
    Drawing\GraphicsUnit::Pixel);
  $gr->Dispose();
  $new->Save($to);
  $new->Dispose();
}

You'll also need to add following section to your web config to allow PHP/CLR extensions and add reference to System.Drawing.dll assembly:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <phpNet>
    <compiler>
      <!-- Enable PHP/CLR -->
      <set name="LanguageFeatures">
        <add value="PhpClr" />
      </set>
    </compiler>
    <!-- Add required libraries -->
    <classLibrary>
      <add assembly="mscorlib" />
      <add assembly="System, Version=4.0.0.0, 
        Culture=neutral, PublicKeyToken=b77a5c561934e089" />
      <add assembly="System.Drawing, Version=4.0.0.0, 
        Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
    </classLibrary>
  </phpNet>
</configuration>