refactor: susun semula struktur folder — Laravel source ke src/

vendor/simplesoftwareio/simple-qrcode/src/ImageMerge.php

@@ -0,0 +1,204 @@
+<?php
+
+namespace SimpleSoftwareIO\QrCode;
+
+use InvalidArgumentException;
+
+class ImageMerge
+{
+    /**
+     * Holds the QrCode image.
+     *
+     * @var Image
+     */
+    protected $sourceImage;
+
+    /**
+     * Holds the merging image.
+     *
+     * @var Image
+     */
+    protected $mergeImage;
+
+    /**
+     * The height of the source image.
+     *
+     * @var int
+     */
+    protected $sourceImageHeight;
+
+    /**
+     * The width of the source image.
+     *
+     * @var int
+     */
+    protected $sourceImageWidth;
+
+    /**
+     * The height of the merge image.
+     *
+     * @var int
+     */
+    protected $mergeImageHeight;
+
+    /**
+     * The width of the merge image.
+     *
+     * @var int
+     */
+    protected $mergeImageWidth;
+
+    /**
+     * Holds the radio of the merging image.
+     *
+     * @var float
+     */
+    protected $mergeRatio;
+
+    /**
+     * The height of the merge image after it is merged.
+     *
+     * @var int
+     */
+    protected $postMergeImageHeight;
+
+    /**
+     * The width of the merge image after it is merged.
+     *
+     * @var int
+     */
+    protected $postMergeImageWidth;
+
+    /**
+     * The position that the merge image is placed on top of the source image.
+     *
+     * @var int
+     */
+    protected $centerY;
+
+    /**
+     * The position that the merge image is placed on top of the source image.
+     *
+     * @var int
+     */
+    protected $centerX;
+
+    /**
+     * Creates a new ImageMerge object.
+     *
+     * @param $sourceImage Image The image that will be merged over.
+     * @param $mergeImage Image The image that will be used to merge with $sourceImage
+     */
+    public function __construct(Image $sourceImage, Image $mergeImage)
+    {
+        $this->sourceImage = $sourceImage;
+        $this->mergeImage = $mergeImage;
+    }
+
+    /**
+     * Returns an QrCode that has been merge with another image.
+     * This is usually used with logos to imprint a logo into a QrCode.
+     *
+     * @param $percentage float The percentage of size relative to the entire QR of the merged image
+     *
+     * @return string
+     */
+    public function merge($percentage)
+    {
+        $this->setProperties($percentage);
+
+        $img = imagecreatetruecolor($this->sourceImage->getWidth(), $this->sourceImage->getHeight());
+        imagealphablending($img, true);
+        $transparent = imagecolorallocatealpha($img, 0, 0, 0, 127);
+        imagefill($img, 0, 0, $transparent);
+
+        imagecopy(
+            $img,
+            $this->sourceImage->getImageResource(),
+            0,
+            0,
+            0,
+            0,
+            $this->sourceImage->getWidth(),
+            $this->sourceImage->getHeight()
+        );
+
+        imagecopyresampled(
+            $img,
+            $this->mergeImage->getImageResource(),
+            $this->centerX,
+            $this->centerY,
+            0,
+            0,
+            $this->postMergeImageWidth,
+            $this->postMergeImageHeight,
+            $this->mergeImageWidth,
+            $this->mergeImageHeight
+        );
+
+        $this->sourceImage->setImageResource($img);
+
+        return $this->createImage();
+    }
+
+    /**
+     * Creates a PNG Image.
+     *
+     * @return string
+     */
+    protected function createImage()
+    {
+        ob_start();
+        imagepng($this->sourceImage->getImageResource());
+
+        return ob_get_clean();
+    }
+
+    /**
+     * Sets the objects properties.
+     *
+     * @param $percentage float The percentage that the merge image should take up.
+     *
+     * @return void
+     */
+    protected function setProperties($percentage)
+    {
+        if ($percentage > 1) {
+            throw new InvalidArgumentException('$percentage must be less than 1');
+        }
+
+        $this->sourceImageHeight = $this->sourceImage->getHeight();
+        $this->sourceImageWidth = $this->sourceImage->getWidth();
+
+        $this->mergeImageHeight = $this->mergeImage->getHeight();
+        $this->mergeImageWidth = $this->mergeImage->getWidth();
+
+        $this->calculateOverlap($percentage);
+        $this->calculateCenter();
+    }
+
+    /**
+     * Calculates the center of the source Image using the Merge image.
+     *
+     * @return void
+     */
+    protected function calculateCenter()
+    {
+        $this->centerX = intval(($this->sourceImageWidth / 2) - ($this->postMergeImageWidth / 2));
+        $this->centerY = intval(($this->sourceImageHeight / 2) - ($this->postMergeImageHeight / 2));
+    }
+
+    /**
+     * Calculates the width of the merge image being placed on the source image.
+     *
+     * @param float $percentage
+     *
+     * @return void
+     */
+    protected function calculateOverlap($percentage)
+    {
+        $this->mergeRatio = round($this->mergeImageWidth / $this->mergeImageHeight, 2);
+        $this->postMergeImageWidth = intval($this->sourceImageWidth * $percentage);
+        $this->postMergeImageHeight = intval($this->postMergeImageWidth / $this->mergeRatio);
+    }
+}