function image_filter_keyword

Returns the offset in pixels from the anchor.

Parameters

string $anchor: The anchor ('top', 'left', 'bottom', 'right', 'center').

int $current_size: The current size, in pixels.

int $new_size: The new size, in pixels.

Return value

int|string The offset from the anchor, in pixels, or the anchor itself, if its value isn't one of the accepted values.

File

core/modules/image/image.module, line 315

Code

function image_filter_keyword($anchor, $current_size, $new_size) {
    switch ($anchor) {
        case 'top':
        case 'left':
            return 0;
        case 'bottom':
        case 'right':
            return $current_size - $new_size;
        case 'center':
            return $current_size / 2 - $new_size / 2;
        default:
            return $anchor;
    }
}