160 lines
4.4 KiB
PHP
160 lines
4.4 KiB
PHP
<?php declare(strict_types=1);
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Misc functions *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/**
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* Add a directory full of images
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*
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* @param string $base
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* @return array
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*/
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function add_dir(string $base): array
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{
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$results = [];
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foreach (list_files($base) as $full_path) {
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$short_path = str_replace($base, "", $full_path);
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$filename = basename($full_path);
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$tags = path_to_tags($short_path);
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$result = "$short_path (".str_replace(" ", ", ", $tags).")... ";
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try {
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add_image($full_path, $filename, $tags);
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$result .= "ok";
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} catch (UploadException $ex) {
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$result .= "failed: ".$ex->getMessage();
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}
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$results[] = $result;
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}
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return $results;
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}
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/**
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* Sends a DataUploadEvent for a file.
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*
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* @param string $tmpname
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* @param string $filename
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* @param string $tags
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* @throws UploadException
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*/
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function add_image(string $tmpname, string $filename, string $tags): void
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{
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assert(file_exists($tmpname));
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$pathinfo = pathinfo($filename);
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$metadata = [];
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$metadata['filename'] = $pathinfo['basename'];
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if (array_key_exists('extension', $pathinfo)) {
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$metadata['extension'] = $pathinfo['extension'];
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}
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$metadata['tags'] = Tag::explode($tags);
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$metadata['source'] = null;
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send_event(new DataUploadEvent($tmpname, $metadata));
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}
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/**
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* Given a full size pair of dimensions, return a pair scaled down to fit
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* into the configured thumbnail square, with ratio intact.
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* Optionally uses the High-DPI scaling setting to adjust the final resolution.
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*
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* @param int $orig_width
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* @param int $orig_height
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* @param bool $use_dpi_scaling Enables the High-DPI scaling.
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* @return array
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*/
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function get_thumbnail_size(int $orig_width, int $orig_height, bool $use_dpi_scaling = false): array
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{
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global $config;
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if ($orig_width === 0) {
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$orig_width = 192;
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}
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if ($orig_height === 0) {
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$orig_height = 192;
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}
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if ($orig_width > $orig_height * 5) {
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$orig_width = $orig_height * 5;
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}
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if ($orig_height > $orig_width * 5) {
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$orig_height = $orig_width * 5;
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}
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if ($use_dpi_scaling) {
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list($max_width, $max_height) = get_thumbnail_max_size_scaled();
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} else {
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$max_width = $config->get_int(ImageConfig::THUMB_WIDTH);
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$max_height = $config->get_int(ImageConfig::THUMB_HEIGHT);
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}
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$output = get_scaled_by_aspect_ratio($orig_width, $orig_height, $max_width, $max_height);
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if ($output[2] > 1 && $config->get_bool('thumb_upscale')) {
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return [(int)$orig_width, (int)$orig_height];
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} else {
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return $output;
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}
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}
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function get_scaled_by_aspect_ratio(int $original_width, int $original_height, int $max_width, int $max_height) : array
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{
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$xscale = ($max_width/ $original_width);
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$yscale = ($max_height/ $original_height);
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$scale = ($yscale < $xscale) ? $yscale : $xscale ;
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return [(int)($original_width*$scale), (int)($original_height*$scale), $scale];
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}
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/**
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* Fetches the thumbnails height and width settings and applies the High-DPI scaling setting before returning the dimensions.
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*
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* @return array [width, height]
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*/
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function get_thumbnail_max_size_scaled(): array
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{
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global $config;
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$scaling = $config->get_int(ImageConfig::THUMB_SCALING);
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$max_width = $config->get_int(ImageConfig::THUMB_WIDTH) * ($scaling/100);
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$max_height = $config->get_int(ImageConfig::THUMB_HEIGHT) * ($scaling/100);
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return [$max_width, $max_height];
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}
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function create_image_thumb(string $hash, string $type, string $engine = null)
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{
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global $config;
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$inname = warehouse_path(Image::IMAGE_DIR, $hash);
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$outname = warehouse_path(Image::THUMBNAIL_DIR, $hash);
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$tsize = get_thumbnail_max_size_scaled();
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if (empty($engine)) {
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$engine = $config->get_string(ImageConfig::THUMB_ENGINE);
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}
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$output_format = $config->get_string(ImageConfig::THUMB_TYPE);
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if ($output_format=="webp") {
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$output_format = Media::WEBP_LOSSY;
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}
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send_event(new MediaResizeEvent(
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$engine,
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$inname,
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$type,
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$outname,
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$tsize[0],
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$tsize[1],
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false,
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$output_format,
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$config->get_int(ImageConfig::THUMB_QUALITY),
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true,
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$config->get_bool('thumb_upscale', false)
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));
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}
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