Version 1

[yaffs-website] / web / modules / contrib / imagemagick / src / Plugin / ImageToolkit / Operation / imagemagick / Rotate.php

diff --git a/web/modules/contrib/imagemagick/src/Plugin/ImageToolkit/Operation/imagemagick/Rotate.php b/web/modules/contrib/imagemagick/src/Plugin/ImageToolkit/Operation/imagemagick/Rotate.php
new file mode 100644 (file)
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+++ b/web/modules/contrib/imagemagick/src/Plugin/ImageToolkit/Operation/imagemagick/Rotate.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Drupal\imagemagick\Plugin\ImageToolkit\Operation\imagemagick;
+
+use Drupal\Component\Utility\Color;
+use Drupal\Component\Utility\Rectangle;
+
+/**
+ * Defines imagemagick Rotate operation.
+ *
+ * @ImageToolkitOperation(
+ *   id = "imagemagick_rotate",
+ *   toolkit = "imagemagick",
+ *   operation = "rotate",
+ *   label = @Translation("Rotate"),
+ *   description = @Translation("Rotates an image by the given number of degrees.")
+ * )
+ */
+class Rotate extends ImagemagickImageToolkitOperationBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function arguments() {
+    return [
+      'degrees' => [
+        'description' => 'The number of (clockwise) degrees to rotate the image',
+      ],
+      'background' => [
+        'description' => "A string specifying the hexadecimal color code to use as background for the uncovered area of the image after the rotation. E.g. '#000000' for black, '#ff00ff' for magenta, and '#ffffff' for white. For images that support transparency, this will default to transparent white",
+        'required' => FALSE,
+        'default' => NULL,
+      ],
+      'resize_filter' => [
+        'description' => 'An optional filter to apply for the resize',
+        'required' => FALSE,
+        'default' => '',
+      ],
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function validateArguments(array $arguments) {
+    // Validate or set background color argument.
+    if (!empty($arguments['background'])) {
+      // Validate the background color.
+      if (!Color::validateHex($arguments['background'])) {
+        throw new \InvalidArgumentException("Invalid color '{$arguments['background']}' specified for the 'rotate' operation.");
+      }
+    }
+    else {
+      // Background color is not specified: use transparent.
+      $arguments['background'] = 'transparent';
+    }
+    return $arguments;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function execute(array $arguments) {
+    // Rotate.
+    $arg = '-background ' . $this->getToolkit()->escapeShellArg($arguments['background']);
+    $arg .= ' -rotate ' . $arguments['degrees'];
+    $arg .= ' +repage';
+    $this->getToolkit()->addArgument($arg);
+
+    // Need to resize the image after rotation to make sure it complies with
+    // the dimensions expected, calculated via the Rectangle class.
+    $box = new Rectangle($this->getToolkit()->getWidth(), $this->getToolkit()->getHeight());
+    $box = $box->rotate((float) $arguments['degrees']);
+    return $this->getToolkit()->apply('resize', ['width' => $box->getBoundingWidth(), 'height' => $box->getBoundingHeight(), 'filter' => $arguments['resize_filter']]);
+  }
+}