');
document.write('
');
document.write('
class jpgimage
{');
document.write('
');
document.write('
var $ih;
');
document.write('
var $imagefile;
');
document.write('
');
document.write('
function open
($filename) {');
document.write('
$this->
ih = imagecreatefromjpeg
($filename);
');
document.write('
');
document.write('
if ( !
$this->
ih ) {');
document.write('
return false;
');
document.write('
} else {');
document.write('
$imagefile =
$filename;
');
document.write('
return true;
');
document.write('
}');
document.write('
}');
document.write('
');
document.write('
// kicks back image handle for user to mod.. ');
document.write('
function get_imagehandle
() {');
document.write('
if ( $this->
ih ) {');
document.write('
return $this->
ih;
');
document.write('
} else {');
document.write('
return false;
');
document.write('
}');
document.write('
}');
document.write('
');
document.write('
// returns opened image\'s width ');
document.write('
function get_width
() {');
document.write('
return imagesx
($this->
ih);
');
document.write('
}');
document.write('
');
document.write('
// Returns opened image\'s height');
document.write('
function get_height
() {');
document.write('
return imagesy
($this->
ih);
');
document.write('
}');
document.write('
');
document.write('
function resize_aspect
($max_size) {');
document.write('
');
document.write('
if ( $this->
get_width() >
$max_size ||
$this->
get_height() >
$max_size ) {');
document.write('
');
document.write('
$new_width =
$max_size;
');
document.write('
$new_height =
$max_size;
');
document.write('
');
document.write('
// wider ');
document.write('
if ( $this->
get_width() >
$this->
get_height() ) {');
document.write('
$new_height =
($new_width/
$this->
get_width()) *
$this->
get_height();
');
document.write('
// taller');
document.write('
} else {');
document.write('
$new_width =
($new_height/
$this->
get_height()) *
$this->
get_width();
');
document.write('
}');
document.write('
');
document.write('
$dh = imagecreatetruecolor
($new_width,
$new_height) or
die("Cannot create true color ($new_width,$new_height)");
');
document.write(' imagecopyresampled
( $dh,
$this->
ih,
0,
0,
0,
0,
$new_width,
$new_height,
$this->
get_width(),
$this->
get_height() );
');
document.write('
');
document.write('
// clear current image handle');
document.write(' imagedestroy
($this->
ih);
');
document.write('
');
document.write('
// set new handle to image handle');
document.write('
$this->
ih =
$dh;
');
document.write('
');
document.write('
}');
document.write('
');
document.write('
}');
document.write('
');
document.write('
function output
($quality =
100) {');
document.write('
header(\'Content-type: image/jpeg\');
');
document.write(' imagejpeg
($this->
ih,
"",
$quality);
');
document.write('
}');
document.write('
');
document.write('
function save
($quality =
100) {');
document.write(' imagejpeg
($this->
ih,
$this->
imagefile,
$quality);
');
document.write('
}');
document.write('
');
document.write('
function clear
() {');
document.write(' imagedestroy
($this->
ih);
');
document.write('
}');
document.write('
');
document.write('
}');
document.write('