function image_scale in Drupal 5
Same name and namespace in other branches
- 4 includes/image.inc \image_scale()
- 6 includes/image.inc \image_scale()
- 7 includes/image.inc \image_scale()
Scales an image to the given width and height while maintaining aspect ratio.
Parameters
$source The filepath of the source image:
$destination The file path of the destination image:
$width The target width:
$height The target height:
Return value
True or FALSE, based on success
2 calls to image_scale()
- user_validate_picture in modules/
user/ user.module - _upload_image in modules/
upload/ upload.module - Check an upload, if it is an image, make sure it fits within the maximum dimensions allowed.
File
- includes/
image.inc, line 115
Code
function image_scale($source, $destination, $width, $height) {
$info = image_get_info($source);
// don't scale up
if ($width >= $info['width'] && $height >= $info['height']) {
return FALSE;
}
$aspect = $info['height'] / $info['width'];
if ($aspect < $height / $width) {
$width = (int) min($width, $info['width']);
$height = (int) round($width * $aspect);
}
else {
$height = (int) min($height, $info['height']);
$width = (int) round($height / $aspect);
}
return image_toolkit_invoke('resize', array(
$source,
$destination,
$width,
$height,
));
}