<?php
//****************************************************************************
// phpLibImageResize
//****************************************************************************
//        Author: Maxx 1,5k  <maxx@@e-taller.net>
//           WWW: http://www.e-taller.net/libtxaccel/
//      Category: Graphics
//         Requires: GD extension
//   Description: A PHP class for resizing images.
//****************************************************************************
// The lib is FREEWARE. This means you can use it anywhere you want, you can 
// do anything with it. Author is NOT responsible for any consequences of
// using this library. 
// If you don't agree with this, you SHOULD NOT use the lib.
//****************************************************************************
// All improvings, feature requests, bug reports, etc. are gladly accepted.
//****************************************************************************
// Note: For best viewing of the code Tab size 3 is recommended
//****************************************************************************
class CImaSize {
    var $image = 0;

    function CImaSize($img='', $typ='') {
        if($this->image) @ImageDestroy($this->image);
        if($img!='') {
            $typ = strtolower($typ);
            if(($typ == 'string') || (!@file_exists($img))) $this->loadFromString($img);
                else $this->loadFromFile($img, $typ);
        }
    }

    function loadFromString($strng) {
        if($this->image) @ImageDestroy($this->image);
        return ($this->image = @ImageCreateFromString($strng));
    }

    function loadFromFile($fn, $typ='') {
        if($this->image) @ImageDestroy($this->image);
        if(!@file_exists($fn)) $this->image = 0; else {
            if(($typ=='jpeg')||($typ=='jpg')) $this->image = @ImageCreateFromJPEG($fn);
            elseif($typ=='png') $this->image = @ImageCreateFromPNG($fn);
            elseif($typ=='gif') $this->image = @ImageCreateFromGIF($fn);
            if(!$this->image) {
                $funcar = @get_extension_funcs('gd');
                foreach($funcar as $func) {
                    if($this->image) break;
                    $func = strtolower($func);
                    if(substr($func,0,15) != 'imagecreatefrom') continue;
                    if(substr($func,15) == 'string') continue;
                    $this->image = @$func($fn);
                }
            }
        }
        return $this->image;
    }

    function sizeTo($x, $y, $clr=0) {
        if((!$this->image) || (($x*$y) < 1)) return 0;
        if(sizeof($clr) != 3) $clr = array(255,255,255);
        $img = @ImageCreate($x, $y);
        $bg = @ImageColorAllocate($img, $clr[0], $clr[1], $clr[2]);
        $sx = @ImageSX($this->image); $sy = @ImageSY($this->image);
        $dw = (float)($x / $sx); $dh = (float)($y / $sy);
        $dd = ($dw < $dh) ? $dw : $dh;
        @ImageCopyResized($img, $this->image,
            (int)(($x-($sx*$dd))/2), (int)(($y-($sy*$dd))/2),
            0, 0,
            (int)($sx*$dd)+1, (int)($sy*$dd)+1,
            $sx, $sy);
        @ImageDestroy($this->image);
        return ($this->image = $img);
    }
};
?>