postitwar/structs.php at master · scharron/postitwar · GitHub

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<?php


class Rect
{
  function __construct($x, $y, $w, $h)
  {
    $this->x = $x;
    $this->y = $y;
    $this->w = $w;
    $this->h = $h;
  }
  var $x, $y, $w, $h;
}

function create_from($filename)
{
  $type = exif_imagetype($filename);
  switch ($type)
  {
  case IMAGETYPE_GIF: $handle = imagecreatefromgif($filename); break;
  case IMAGETYPE_JPEG: $handle = imagecreatefromjpeg($filename); break;
  case IMAGETYPE_PNG: $handle = imagecreatefrompng($filename); break;
  }
  return $handle;
}

class Image
{
  function __construct($filename, $x = 0, $y = 0, $w = -1, $h = -1)
  {
    $this->filename = $filename;

    $this->is_valid = true;

    if ($filename !== null)
    {
      $this->handle = create_from($filename);
      $rw = imagesx($this->handle);
      $rh = imagesy($this->handle);
      $this->rect = new Rect((int)$x, (int)$y, (int)$rw, (int)$rh);
    }
    else
    {
      $this->rect = new Rect((int)$x, (int)$y, (int)$w, (int)$h);
      $this->handle = imagecreate($this->rect->w, $this->rect->h);
      imagealphablending($this->handle, true);
      $white = imagecolorallocate($this->handle, 255, 255, 255);
      imagefill($this->handle, 0, 0, $white);
    }

    if ($this->handle === false)
    {
      $this->is_valid = false;
      return;
    }
  }

  var $filename;
  var $rect;
  var $handle;
  var $is_valid;
}