PS-720_alpha-tiff-center (#488)

* paste layers one by one, centered BC-Break - options `size` and `position` are removed - option `transparency` is renamed `opacity` to conform to values 0=transparent ; 100=full opaque color * fix : bad positioning of multiple-layers tiff add : cli `alchemy:rendition-factory:create` now accepts a directory as input (all files treated) * rename BackgroundFilter to BackgroundFillFilter (filter name = `background_fill`)
alchemy-fr · Nov 26, 2024 · d4dbd09 · d4dbd09
1 parent 9e354e0
commit d4dbd09
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Showing 3 changed files with 62 additions and 4 deletions.
diff --git a/lib/php/rendition-factory/src/Command/CreateCommand.php b/lib/php/rendition-factory/src/Command/CreateCommand.php
@@ -45,15 +45,42 @@ protected function configure(): void
 
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
-        $time = microtime(true);
-        $mimeType = $input->getOption('type');
+        $ret = 0;
         $src = $input->getArgument('src');
+        if (is_dir($src)) {
+            if (false === ($od = opendir($src))) {
+                $output->writeln(sprintf('Directory "%s" could not be opened.', $src));
+
+                return 1;
+            }
+            while ($f = readdir($od)) {
+                if ('.' === $f || '..' === $f) {
+                    continue;
+                }
+                $ret |= $this->doFile($input, $output, $src.'/'.$f);
+            }
+            closedir($od);
+        } else {
+            $ret = $this->doFile($input, $output, $src);
+        }
+
+        return $ret;
+    }
+
+    protected function doFile(InputInterface $input, OutputInterface $output, string $src): int
+    {
         if (!file_exists($src)) {
             $output->writeln(sprintf('File "%s" does not exist.', $src));
 
             return 1;
         }
 
+        $time = microtime(true);
+        $output->writeln('');
+        $output->writeln(sprintf('Processing file: %s', $src));
+
+        $mimeType = $input->getOption('type');
+
         if (null === $mimeType) {
             $mimeType = $this->mimeTypeGuesser->guessMimeTypeFromPath($src);
             $output->writeln(sprintf('MIME type guessed: %s', $mimeType ?? 'unknown'));

diff --git a/lib/php/rendition-factory/src/Transformer/Image/Imagine/BackgroundFillFilterLoader.php b/lib/php/rendition-factory/src/Transformer/Image/Imagine/BackgroundFillFilterLoader.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Alchemy\RenditionFactory\Transformer\Image\Imagine;
+
+use Imagine\Image\ImageInterface;
+use Imagine\Image\ImagineInterface;
+use Imagine\Image\Point;
+use Liip\ImagineBundle\Imagine\Filter\Loader\LoaderInterface;
+
+class BackgroundFillFilterLoader implements LoaderInterface
+{
+    public function __construct(protected ImagineInterface $imagine)
+    {
+    }
+
+    public function load(ImageInterface $image, array $options = [])
+    {
+        $background = $image->palette()->color(
+            $options['color'] ?? '#fff',
+            $options['opacity'] ?? 100,
+        );
+        $canvas = $this->imagine->create($image->getSize(), $background);
+
+        // This is a workaround to avoid a bug in Imagine that causes wrong positionning
+        // when the image has multiple layers
+        $unused = $image->layers()[0];
+
+        $canvas->paste($image, new Point(0, 0));
+
+        return $canvas;
+    }
+}
diff --git a/lib/php/rendition-factory/src/Transformer/Image/Imagine/ImagineFilterFactory.php b/lib/php/rendition-factory/src/Transformer/Image/Imagine/ImagineFilterFactory.php
@@ -10,7 +10,6 @@
 use Liip\ImagineBundle\Imagine\Filter\FilterConfiguration;
 use Liip\ImagineBundle\Imagine\Filter\FilterManager;
 use Liip\ImagineBundle\Imagine\Filter\Loader\AutoRotateFilterLoader;
-use Liip\ImagineBundle\Imagine\Filter\Loader\BackgroundFilterLoader;
 use Liip\ImagineBundle\Imagine\Filter\Loader\CropFilterLoader;
 use Liip\ImagineBundle\Imagine\Filter\Loader\DownscaleFilterLoader;
 use Liip\ImagineBundle\Imagine\Filter\Loader\FixedFilterLoader;
@@ -63,7 +62,7 @@ public function createFilterLoaders(TransformationContextInterface $context): ar
                 $context,
                 $this->imagine,
             ),
-            'background' => new BackgroundFilterLoader($this->imagine),
+            'background_fill' => new BackgroundFillFilterLoader($this->imagine),
             'strip' => new StripFilterLoader(),
             'scale' => new ScaleFilterLoader(),
             'upscale' => new UpscaleFilterLoader(),