Clemens,
Use $this->data['Picture']['File']['tmp_name'] as src, create a scaled
image file and use it to set up $this->data['Picture']. Here's the
function I use:
private function scaleImage($srcpath, $args) {
// cache functionality, no extra charge
if (file_exists($args['filepath'])) {
return;
}
// create src image, depending on image_type
switch ($args['image_type']) {
case IMAGETYPE_JPEG:
$srcimg = imagecreatefromjpeg($srcpath);
break;
case IMAGETYPE_GIF:
$srcimg = imagecreatefromgif($srcpath);
break;
case IMAGETYPE_PNG:
$srcimg = imagecreatefrompng($srcpath);
break;
default:
return; // unknown type, so can't
create new file
}
if ($srcimg === false) {
return; // error reading src image
}
// create dst image
$dstimg = imagecreatetruecolor($args['width'], $args['height']);
if ($dstimg == null) {
imagedestroy($srcimg);
return; // error creating dst image, so can't
create new file
}
// copy image
imagecopyresampled($dstimg, $srcimg, 0, 0, 0, 0,
$args['width'], $args['height'], $args['orig_width'],
$args
['orig_height']);
// save dst image, depending on image_type
switch ($args['image_type']) {
case IMAGETYPE_JPEG:
imagejpeg($dstimg, $args['filepath'], 40);
break;
case IMAGETYPE_GIF:
imagegif($dstimg, $args['filepath']);
break;
case IMAGETYPE_PNG:
imagepng($dstimg, $args['filepath']);
break;
default:
break; // can't happen--we switched on
type earlier
}
// destroy both images, clean up
imagedestroy($srcimg);
imagedestroy($dstimg);
}
On Jun 2, 2:26 am, "Clemens K." <[email protected]> wrote:
> hi.
>
> i can already upload pictures to my mysql database in blob format. i
> want to add an automatical resize when uploading. my code:
>
> $fileData = fread(fopen($this->data['Picture']['File']['tmp_name'], "r
> +"), $this->data['Picture']['File']['size']);
>
> $this->data['Picture']['name'] = $this->data['Picture']['File']
> ['name'];
> $this->data['Picture']['type'] = $this->data['Picture']['File']
> ['type'];
> $this->data['Picture']['size'] = $this->data['Picture']['File']
> ['size'];
> $this->data['Picture']['data'] = $fileData;
>
> $this->Picture->save($this->data);
>
> how can i implement a resize function now? does someone have any idea
> and some code? :)
>
> thanks and regards,
> clemens
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