Código PHP:
public function doSave($destination,$quality=null) {
$quality = (is_numeric($quality) and $quality <= 100 and $quality >= 1) ? intval($quality) : 75;
Header("Content-type: image/".$this->type);
$f2 = $this->f2;
$info = pathinfo($destination);
if(empty($info['filename']))
$this->error("Para guardar se debe especificar un nombre de archivo válido");
if($info['extension'] !== $this->info['extension'])
$destination .= ".".$this->info['extension'];
switch($this->type) {
case "gif":
return imagegif($this->source,$destination);
break;
case "jpeg":
return imagejpeg($this->source,$destination,$quality);
break;
case "png":
$quality = 10 - (round($quality / 10));
return imagepng($this->source,$destination,$quality,PNG_ALL_FILTERS);
break;
}
return false;
}
public function doDownload($quality=null) {
$quality = (is_numeric($quality) and $quality <= 100 and $quality >= 1) ? intval($quality) : 75;
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$this->info['basename']."\"\n");
$f2 = $this->f2;
switch($this->type) {
case "gif":
imagegif($this->source);
break;
case "jpeg":
imagejpeg($this->source,null,$quality);
break;
case "png":
$quality = 10 - (round($quality / 10));
imagepng($this->source,null,$quality,PNG_ALL_FILTERS);
break;
}
exit;
}
public function watermark($file,$posx = 0,$posy = 0,$loop=false,$rotation = 0) {
if($this->stop())
return;
if(false == ($resources = $this->getResources($file)))
return;
$f1 = $resources[0];
if(false == ($wm = @$f1($file)))
return $this->error("La marca de agua \"$file\"no pudo ser cargada");
if($resources[3]['extension'] == "gif") {
$newwm = md5($file.rand()).".png";
imagepng($wm,$newwm);
if(file_exists($newwm)) {
$wm = imagecreatefrompng($newwm);
@unlink($newwm);
}
}
if($rotation <> 0 and is_numeric($rotation))
$wm = imagerotate($wm, $rotation, -1);
$wm_w = @imagesx($wm);
$wm_h = @imagesy($wm);
if($this->type == "gif") {
$matte = imagecreatetruecolor($wm_w,$wm_h);
$trans_color = imagecolorallocatealpha($matte,254,254,254,0);
imagefill($matte, 0,0,$trans_color);
imagecopy($matte,$wm,0,0,0,0,$wm_w,$wm_h);
imagecolortransparent($matte,$trans_color);
$wm = $matte;
}
imagealphablending($this->source, true);
imagesavealpha($this->source, true);
imagealphablending($wm, false);
$posx = ($posx === false) ? ($this->rw - $wm_w) / 2 : intval($posx);
$posy = ($posy === false) ? ($this->rh - $wm_h) / 2 : intval($posy);
if($posx < 0) $posx = ($this->rw - $wm_w) + $posx;
if($posy < 0) $posy = ($this->rh - $wm_h) + $posy;
$this->imagecopy2($this->source, $wm, $posx, $posy, 0, 0, $wm_w, $wm_h, 100);
if($loop === 1 or $loop === 3) {
$rest = ceil($posx/$wm_w);
$n = 1;
while($n <= $rest) {
$this->imagecopy2($this->source, $wm, $posx-($wm_w*$n), $posy, 0, 0, $wm_w, $wm_h, 100);
$n++;
}
$rest = ceil(($this->rw - $posx)/$wm_w);
$n = 1;
while($n <= $rest) {
$this->imagecopy2($this->source, $wm, $posx+($wm_w*$n), $posy, 0, 0, $wm_w, $wm_h, 100);
$n++;
}
}
if($loop === 2 or $loop === 3) {
$rest = ceil($posy/$wm_h);
$n = 1;
while($n <= $rest) {
$this->imagecopy2($this->source, $wm, $posx, $posy-($wm_h*$n), 0, 0, $wm_w, $wm_h, 100);
$n++;
}
$rest = ceil(($this->rh - $posy)/$wm_h);
$n = 1;
while($n <= $rest) {
$this->imagecopy2($this->source, $wm, $posx, $posy+($wm_h*$n), 0, 0, $wm_w, $wm_h, 100);
$n++;
}
}
return true;
}
private function imagecopy2(&$s, $wm, $posx, $posy, $srcx, $srcy, $wm_w, $wm_h, $pct = null) {
if($this->type == "gif")
return imagecopymerge($s, $wm, $posx, $posy, $srcx, $srcy, $wm_w, $wm_h, $pct);
else
return imagecopy($s, $wm, $posx, $posy, $srcx, $srcy, $wm_w, $wm_h);
}
public function textmark($text,$color,$size,$font=null,$rot=0,$posx = 0,$posy = 0) {
if($this->stop())
return;
if($color = $this->rgbhex2rgb($color)) {
$color = imagecolorallocate ($this->source, intval($color[0]), intval($color[1]), intval($color[2]));
$posx = ($posx === false) ? $this->rw / 2 : intval($posx);
$posy = ($posy === false) ? $this->rh / 2 : intval($posy);
if($posx < 0) $posx = $this->rw + $posx;
if($posy < 0) $posy = $this->rh + $posy;
if(function_exists("imagettftext") and isset($font))
if(@imagettftext($this->source, $size, intval($rot), $posx, $posy, $color, $font, $text))
return true;
imagestring($this->source, $size, $posx, $posy, $text, $color);
return true;
}
$this->error("El color de texto debe ser indicado en formato RGB o HTML válido");
return false;
}
public function colorize($color,$exact=false) {
if($this->stop())
return;
if($color = $this->rgbhex2rgb($color)) {
if($exact == true)
$this->grayscale();
if(function_exists("imagefilter"))
return imagefilter($this->source, IMG_FILTER_COLORIZE, $color[0], $color[1], $color[2]);
imagetruecolortopalette($this->source, FALSE, 1024);
$total = imagecolorstotal($this->source);
for ($i = 0; $i < $total; $i++){
$c = imagecolorsforindex($this->source, $i);
imagecolorset($this->source, $i, $color[0]*$c['red']/256, $color[1]*$c['green']/256, $color[2]*$c['blue']/256);
}
return true;
}
$this->error("El nuevo color de imagen debe ser indicado en formato RGB o HTML válido");
return false;
}
public function grayscale() {
if($this->stop())
return;
if(function_exists("imagefilter"))
return imagefilter($this->source, IMG_FILTER_GRAYSCALE);
if(imageistruecolor($this->source))
imagetruecolortopalette($this->source, false, 256);
$total = imagecolorstotal($this->source);
for ($i = 0; $i < $total; $i++) {
$col = imagecolorsforindex($this->source, $i);
$gray = round(0.299 * $col['red'] + 0.587 * $col['green'] + 0.114 * $col['blue']);
imagecolorset($this->source, $i, $gray, $gray, $gray);
}
imagealphablending($this->source,true);
imagesavealpha($this->source,true);
}
}
// Release date: 11/01/2008 @ 21:11:23 GMT-5
?>
