3799187254

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Committed by webeweb

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Update CHANGELOG

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/src/image/Helper/ImageHelper.php

<?php

/*
 * This file is part of the core-library package.
 *
 * (c) 2019 WEBEWEB
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace WBW\Library\Image\Helper;

use Imagick;
use ImagickException;
use RuntimeException;
use WBW\Library\Image\Factory\ImageFactory;
use WBW\Library\Image\Model\Image;
use WBW\Library\Image\Model\ImageInterface;

/**
 * Image helper.
 *
 * @author webeweb <https://github.com/webeweb>
 * @package WBW\Library\Image\Helper
 */
class ImageHelper {

    /**
     * Encode an image into base 64.
     *
     * @param string|null $uri The URI.
     * @return string|null Returns the image encoded into base 64.
     */
    public static function base64Encode(?string $uri): ?string {

        if (null === $uri) {
            return null;
        }

        $data = file_get_contents($uri);

        $stream = fopen("php://memory", "w+b");
        fwrite($stream, $data);

        $mime = mime_content_type($stream);

        fclose($stream);

        return sprintf("data:%s;base64,%s", $mime, base64_encode($data));
    }

    /**
     * Resize.
     *
     * @param int $newWidth The new width.
     * @param int $newHeight The new height.
     * @param string $pathname The pathname.
     * @return bool Returns true in case of success, false otherwise.
     * @throws RuntimeException Throws a runtime exception if the re-sampled copy failed.
     */
    public static function resize(Image $image, int $newWidth, int $newHeight, string $pathname): bool {

        [$w, $h] = ImageFactory::newDimensions($image, $newWidth, $newHeight);

        $input  = ImageFactory::newInputStream($image);
        $output = ImageFactory::newOutputStream($image, $w, $h);
        if (null === $output) {
            throw new RuntimeException("Failed to create true color image");
        }

        $result = imagecopyresampled($output, $input, 0, 0, 0, 0, $w, $h, $image->getWidth(), $image->getHeight());
        if (false === $result) {
            throw new RuntimeException("Failed to copy re-sampled image");
        }

        return static::saveOutputStream($image, $output, $pathname);
    }

    /**
     * Save an output stream.
     *
     * @param Image $image the image.
     * @param resource $outputStream The output stream.
     * @param string $pathname The pathname.
     * @return bool Returns true in case of success, false otherwise.
     */
    protected static function saveOutputStream(Image $image, $outputStream, string $pathname): bool {

        switch ($image->init()->getMimeType()) {

            case ImageInterface::MIME_TYPE_JPEG:
                return imagejpeg($outputStream, $pathname);

            case ImageInterface::MIME_TYPE_PNG:
                return imagepng($outputStream, $pathname);
        }

        return false;
    }

    /**
     * SVG to PNG.
     *
     * @param string $filename The filename.
     * @param int|null $width The width.
     * @param int|null $height The height.
     * @return string|null Returns the SVG converted into PNG.
     * @throws ImagickException Throws an Imagick exception if an error occurs.
     */
    public static function svg2png(string $filename, int $width = null, int $height = null): ?string {

        $image = new Imagick();
        $image->setBackgroundColor("transparent");
        $image->readImage($filename);
        $image->setImageFormat("png");

        if (null !== $width && null !== $height) {
            $image->resizeImage($width, $height, Imagick::FILTER_LANCZOS, 1);
        }

        $png = $image->getImageBlob();
        $image->clear();

        return $png;
    }
}

1	<?php
2
3	/*
4	* This file is part of the core-library package.
5	*
6	* (c) 2019 WEBEWEB
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	namespace WBW\Library\Image\Helper;
13
14	use Imagick;
15	use ImagickException;
16	use RuntimeException;
17	use WBW\Library\Image\Factory\ImageFactory;
18	use WBW\Library\Image\Model\Image;
19	use WBW\Library\Image\Model\ImageInterface;
20
21	/**
22	* Image helper.
23	*
24	* @author webeweb <https://github.com/webeweb>
25	* @package WBW\Library\Image\Helper
26	*/
27	class ImageHelper {
28
29	/**
30	* Encode an image into base 64.
31	*
32	* @param string\|null $uri The URI.
33	* @return string\|null Returns the image encoded into base 64.
34	*/
35	public static function base64Encode(?string $uri): ?string {
36
37	if (null === $uri) {	14✔
38	return null;	7✔
39	}
40
41	$data = file_get_contents($uri);	14✔
42
43	$stream = fopen("php://memory", "w+b");	14✔
44	fwrite($stream, $data);	14✔
45
46	$mime = mime_content_type($stream);	14✔
47
48	fclose($stream);	14✔
49
50	return sprintf("data:%s;base64,%s", $mime, base64_encode($data));	14✔
51	}
52
53	/**
54	* Resize.
55	*
56	* @param int $newWidth The new width.
57	* @param int $newHeight The new height.
58	* @param string $pathname The pathname.
59	* @return bool Returns true in case of success, false otherwise.
60	* @throws RuntimeException Throws a runtime exception if the re-sampled copy failed.
61	*/
62	public static function resize(Image $image, int $newWidth, int $newHeight, string $pathname): bool {
63
64	[$w, $h] = ImageFactory::newDimensions($image, $newWidth, $newHeight);	14✔
65
66	$input = ImageFactory::newInputStream($image);	14✔
67	$output = ImageFactory::newOutputStream($image, $w, $h);	14✔
68	if (null === $output) {	14✔
69	throw new RuntimeException("Failed to create true color image");	×
70	}
71
72	$result = imagecopyresampled($output, $input, 0, 0, 0, 0, $w, $h, $image->getWidth(), $image->getHeight());	14✔
73	if (false === $result) {	14✔
74	throw new RuntimeException("Failed to copy re-sampled image");	×
75	}
76
77	return static::saveOutputStream($image, $output, $pathname);	14✔
78	}
79
80	/**
81	* Save an output stream.
82	*
83	* @param Image $image the image.
84	* @param resource $outputStream The output stream.
85	* @param string $pathname The pathname.
86	* @return bool Returns true in case of success, false otherwise.
87	*/
88	protected static function saveOutputStream(Image $image, $outputStream, string $pathname): bool {
89
90	switch ($image->init()->getMimeType()) {	21✔
91
92	case ImageInterface::MIME_TYPE_JPEG:	3✔
93	return imagejpeg($outputStream, $pathname);	21✔
94
95	case ImageInterface::MIME_TYPE_PNG:	1✔
96	return imagepng($outputStream, $pathname);	7✔
97	}
98
99	return false;	×
100	}
101
102	/**
103	* SVG to PNG.
104	*
105	* @param string $filename The filename.
106	* @param int\|null $width The width.
107	* @param int\|null $height The height.
108	* @return string\|null Returns the SVG converted into PNG.
109	* @throws ImagickException Throws an Imagick exception if an error occurs.
110	*/
111	public static function svg2png(string $filename, int $width = null, int $height = null): ?string {
112
113	$image = new Imagick();	7✔
114	$image->setBackgroundColor("transparent");	7✔
115	$image->readImage($filename);	7✔
116	$image->setImageFormat("png");	7✔
117
118	if (null !== $width && null !== $height) {	7✔
119	$image->resizeImage($width, $height, Imagick::FILTER_LANCZOS, 1);	×
120	}
121
122	$png = $image->getImageBlob();	7✔
123	$image->clear();	7✔
124
125	return $png;	7✔
126	}
127	}

webeweb / core-library / 3799187254

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