AbstractImage::__toString()

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by compolom

created 2018-03-27 05:30 UTC

↳ Parent: AbstractImage

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<?php

namespace Compolomus\Compomage;

use Compolomus\Compomage\Interfaces\ImageInterface;

abstract class AbstractImage
{
    protected $positions = [
        'NORTHWEST' => ['x' => 0, 'y' => 0, 'padX' => 10, 'padY' => 10],
        'NORTH'     => ['x' => 1, 'y' => 0, 'padX' => 0, 'padY' => 10],
        'NORTHEAST' => ['x' => 2, 'y' => 0, 'padX' => -10, 'padY' => 10],
        'WEST'      => ['x' => 0, 'y' => 1, 'padX' => 10, 'padY' => 0],
        'CENTER'    => ['x' => 1, 'y' => 1, 'padX' => 0, 'padY' => 0],
        'EAST'      => ['x' => 2, 'y' => 1, 'padX' => -10, 'padY' => 0],
        'SOUTHWEST' => ['x' => 0, 'y' => 2, 'padX' => 10, 'padY' => -10],
        'SOUTH'     => ['x' => 1, 'y' => 2, 'padX' => 0, 'padY' => -10],
        'SOUTHEAST' => ['x' => 2, 'y' => 2, 'padX' => -10, 'padY' => -10]
    ];

    protected $image;

    protected $width;

    protected $height;

    abstract protected function setSizes(): void;

    abstract protected function resize(int $width, int $height): ImageInterface;

    abstract protected function prepareWatermark(Image $watermark, int $x, int $y): ImageInterface;

    abstract protected function tmp(string $source): ImageInterface;

    abstract public function __toString(): string;

    /**
     * @param string $image
     * @throws \Exception
     */
    protected function init(string $image)
    {
        switch ($image) {
            // base64
            case base64_encode(base64_decode($image, true)) == $image:
                $this->getImageByBase64($image);
                break;
            // URL
            case (substr($image, 0, 4) == 'http'):
                $this->getImageByURL($image);
                break;
            // Local file
            default:
                $this->tmp(file_get_contents($image));
        }
    }

    /**
     * @param string $url
     * @return \Exception|null
     * @throws \Exception
     */
    protected function getImageByURL(string $url): ?\Exception
    {
        if (getimagesize($url)) {
            $upload = new \SplFileObject($url, 'rb');
            $image = '';
            while (!$upload->eof()) {
                $image .= $upload->fgets();
            }
        } else {
            throw new \Exception('Unsupported image type');
        }
        $this->tmp($image);

        return null;
    }

    /**
     * @param string $base64
     * @throws \Exception
     */
    protected function getImageByBase64(string $base64): void
    {
        $this->tmp(base64_decode($base64));
    }

    protected function setImage($image): void
    {
        $this->image = $image;
    }

    public function getImage()
    {
        return $this->image;
    }

    public function getWidth(): int
    {
        return $this->width;
    }

    protected function setWidth(int $width): void
    {
        $this->width = $width;
    }

    public function getHeight(): int
    {
        return $this->height;
    }

    protected function setHeight(int $height): void
    {
        $this->height = $height;
    }

    /**
     * @param int $height
     * @return ImageInterface
     */
    public function resizeByHeight(int $height): ImageInterface
    {
        return $this->resize($this->getWidth() * ($height / $this->getHeight()), $height);
    }

    /**
     * @param int $width
     * @return ImageInterface
     */
    public function resizeByWidth(int $width): ImageInterface
    {
        return $this->resize($width, $this->getHeight() * ($width / $this->getWidth()));
    }

    /**
     * @param int $percent
     * @return ImageInterface
     */
    public function resizeByPercent(int $percent): ImageInterface
    {
        $width = $this->getWidth() * ($percent / 100);
        $height = $this->getHeight() * ($percent / 100);
        return $this->resize($width, $height);
    }

    /**
     * @param string $mode
     * @param int $param
     * @return ImageInterface
     * @throws \Exception
     */
    public function resizeBy(string $mode, int $param): ImageInterface
    {
        switch ($mode) {
            case 'width':
                return $this->resizeByWidth($param);
            case 'height':
                return $this->resizeByHeight($param);
            case 'percent':
                return $this->resizeByPercent($param);
            default:
                throw new \Exception('Unsupported mode type by resize');
        }
    }

    /**
     * @param Image $watermark
     * @param string $position
     * @return ImageInterface
     * @throws \Exception
     */
    public function watermark(Image $watermark, string $position): ImageInterface
    {
        if (!array_key_exists(strtoupper($position), $this->positions)) {
            throw new \Exception('Wrong position');
        }

        return $this->prepareWatermark(
            $watermark,
            intval((($this->getWidth() - $watermark->getWidth()) / 2) * $this->positions[strtoupper($position)]['x']) + $this->positions[strtoupper($position)]['padX'],
            intval((($this->getHeight() - $watermark->getHeight()) / 2) * $this->positions[strtoupper($position)]['y']) + $this->positions[strtoupper($position)]['padY']
        );
    }

    public function getBase64(): string
    {
        return chunk_split(base64_encode($this->__toString()));

    }
}


1			<?php
2
3			namespace Compolomus\Compomage;
4
5			use Compolomus\Compomage\Interfaces\ImageInterface;
6
7			abstract class AbstractImage
8			{
9			protected $positions = [
10			'NORTHWEST' => ['x' => 0, 'y' => 0, 'padX' => 10, 'padY' => 10],
11			'NORTH' => ['x' => 1, 'y' => 0, 'padX' => 0, 'padY' => 10],
12			'NORTHEAST' => ['x' => 2, 'y' => 0, 'padX' => -10, 'padY' => 10],
13			'WEST' => ['x' => 0, 'y' => 1, 'padX' => 10, 'padY' => 0],
14			'CENTER' => ['x' => 1, 'y' => 1, 'padX' => 0, 'padY' => 0],
15			'EAST' => ['x' => 2, 'y' => 1, 'padX' => -10, 'padY' => 0],
16			'SOUTHWEST' => ['x' => 0, 'y' => 2, 'padX' => 10, 'padY' => -10],
17			'SOUTH' => ['x' => 1, 'y' => 2, 'padX' => 0, 'padY' => -10],
18			'SOUTHEAST' => ['x' => 2, 'y' => 2, 'padX' => -10, 'padY' => -10]
19			];
20
21			protected $image;
22
23			protected $width;
24
25			protected $height;
26
27			abstract protected function setSizes(): void;
28
29			abstract protected function resize(int $width, int $height): ImageInterface;
30
31			abstract protected function prepareWatermark(Image $watermark, int $x, int $y): ImageInterface;
32
33			abstract protected function tmp(string $source): ImageInterface;
34
35			abstract public function __toString(): string;
36
37			/**
38			* @param string $image
39			* @throws \Exception
40			*/
41			protected function init(string $image)
42			{
43			switch ($image) {
44			// base64
45			case base64_encode(base64_decode($image, true)) == $image:
46			$this->getImageByBase64($image);
47			break;
48			// URL
49			case (substr($image, 0, 4) == 'http'):
50			$this->getImageByURL($image);
51			break;
52			// Local file
53			default:
54			$this->tmp(file_get_contents($image));
55			}
56			}
57
58			/**
59			* @param string $url
60			* @return \Exception\|null
61			* @throws \Exception
62			*/
63			protected function getImageByURL(string $url): ?\Exception
64			{
65			if (getimagesize($url)) {
66			$upload = new \SplFileObject($url, 'rb');
67			$image = '';
68			while (!$upload->eof()) {
69			$image .= $upload->fgets();
70			}
71			} else {
72			throw new \Exception('Unsupported image type');
73			}
74			$this->tmp($image);
75
76			return null;
77			}
78
79			/**
80			* @param string $base64
81			* @throws \Exception
82			*/
83			protected function getImageByBase64(string $base64): void
84			{
85			$this->tmp(base64_decode($base64));
86			}
87
88			protected function setImage($image): void
89			{
90			$this->image = $image;
91			}
92
93			public function getImage()
94			{
95			return $this->image;
96			}
97
98			public function getWidth(): int
99			{
100			return $this->width;
101			}
102
103			protected function setWidth(int $width): void
104			{
105			$this->width = $width;
106			}
107
108			public function getHeight(): int
109			{
110			return $this->height;
111			}
112
113			protected function setHeight(int $height): void
114			{
115			$this->height = $height;
116			}
117
118			/**
119			* @param int $height
120			* @return ImageInterface
121			*/
122			public function resizeByHeight(int $height): ImageInterface
123			{
124			return $this->resize($this->getWidth() * ($height / $this->getHeight()), $height);
125			}
126
127			/**
128			* @param int $width
129			* @return ImageInterface
130			*/
131			public function resizeByWidth(int $width): ImageInterface
132			{
133			return $this->resize($width, $this->getHeight() * ($width / $this->getWidth()));
134			}
135
136			/**
137			* @param int $percent
138			* @return ImageInterface
139			*/
140			public function resizeByPercent(int $percent): ImageInterface
141			{
142			$width = $this->getWidth() * ($percent / 100);
143			$height = $this->getHeight() * ($percent / 100);
144			return $this->resize($width, $height);
145			}
146
147			/**
148			* @param string $mode
149			* @param int $param
150			* @return ImageInterface
151			* @throws \Exception
152			*/
153			public function resizeBy(string $mode, int $param): ImageInterface
154			{
155			switch ($mode) {
156			case 'width':
157			return $this->resizeByWidth($param);
158			case 'height':
159			return $this->resizeByHeight($param);
160			case 'percent':
161			return $this->resizeByPercent($param);
162			default:
163			throw new \Exception('Unsupported mode type by resize');
164			}
165			}
166
167			/**
168			* @param Image $watermark
169			* @param string $position
170			* @return ImageInterface
171			* @throws \Exception
172			*/
173			public function watermark(Image $watermark, string $position): ImageInterface
174			{
175			if (!array_key_exists(strtoupper($position), $this->positions)) {
176			throw new \Exception('Wrong position');
177			}
178
179			return $this->prepareWatermark(
180			$watermark,
181			intval((($this->getWidth() - $watermark->getWidth()) / 2) * $this->positions[strtoupper($position)]['x']) + $this->positions[strtoupper($position)]['padX'],
182			intval((($this->getHeight() - $watermark->getHeight()) / 2) * $this->positions[strtoupper($position)]['y']) + $this->positions[strtoupper($position)]['padY']
183			);
184			}
185
186			public function getBase64(): string
187			{
188			return chunk_split(base64_encode($this->__toString()));
189
190			}
191			}
192

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AbstractImage::__toString()

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