Image::resizeToWidth() - Code Metrics - Inspection of "moving functionality into strategies" - delboy1978uk/image - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 8ba72f...a2bda9 )

by Derek Stephen

created 2017-09-28 11:02 UTC

Image::resizeToWidth() A

↳ Parent: Image

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nc	1
nop	1
dl	0
loc	5
ccs	4
cts	4
cp	1
crap	1
rs	9.4285
c	0
b	0
f	0

<?php

namespace Del;

use Del\Image\Exception\NotFoundException;
use Del\Image\Exception\NothingLoadedException;
use Del\Image\Strategy\GifStrategy;
use Del\Image\Strategy\ImageTypeStrategyInterface;
use Del\Image\Strategy\JpegStrategy;
use Del\Image\Strategy\PngStrategy;

class Image 
{
    /** @var resource $image */
    private $image;

    /** @var string $fileName */
    private $fileName;

    /** @var ImageTypeStrategyInterface $strategy */
    private $strategy;

    /** @var array $strategies */
    private $strategies = [
        IMAGETYPE_JPEG => JpegStrategy::class,
        IMAGETYPE_GIF => GifStrategy::class,
        IMAGETYPE_PNG => PngStrategy::class,
    ];

    /**
     * @param string $filename
     */
    public function __construct($filename = null)
    {
        if ($filename !== null) {
            $this->fileName = $filename;
            $this->load($filename);
        }
    }

    /**
     * @param $path
     * @throws NotFoundException
     */
    private function checkFileExists($path)
    {
        if (!file_exists($path)) {
            throw new NotFoundException("$path does not exist");
        }
    }


    /**
     * @param string $filename
     * @throws NotFoundException
     */
    public function load($filename)
    {
        $this->checkFileExists($filename);
        $this->strategy = new $this->strategies[getimagesize($filename)[2]]();
        $this->image = $this->strategy->create($filename);
    }


    /**
     *  @param string $filename
     *  @param int $compression
     *  @param string $permissions
     */
    public function save($filename = null, $compression = 100, $permissions = null)
    {
        $filename = ($filename) ?: $this->fileName;
        $this->strategy->save($this->image, $filename, $compression);
        $this->setPermissions($filename, $permissions);
    }

    /**
     * @param $filename
     * @param $permissions
     */
    private function setPermissions($filename, $permissions)
    {
        if ($permissions !== null) {
            chmod($filename, (int) $permissions);
        }
    }


    /**
     * @param bool $return either output directly
     * @return void|string image contents
     */
    public function output($return = false)
    {
        if ($return) {
            ob_start();
        }

        $this->renderImage();

        if ($return) {
            $contents = ob_get_flush();
            return $contents;
        }
    }

    private function renderImage()
    {
        $this->strategy->render($this->image);
    }

    /**
     * @return int
     */
    public function getWidth()
    {
        return imagesx($this->image);
    }

    /**
     * @return int
     */
    public function getHeight()
    {
        return imagesy($this->image);
    }

    /**
     * @param int $height
     */
    public function resizeToHeight($height)
    {
        $ratio = $height / $this->getHeight();
        $width = $this->getWidth() * $ratio;
        $this->resize($width, $height);
    }

    /**
     * @param int $width
     */
    public function resizeToWidth($width)
    {
        $ratio = $width / $this->getWidth();
        $height = $this->getHeight() * $ratio;
        $this->resize($width, $height);
    }

    /**
     * @param int $scale %
     */
    public function scale($scale)
    {
        $width = $this->getWidth() * $scale / 100;
        $height = $this->getHeight() * $scale / 100;
        $this->resize($width, $height);
    }

    /**
     * @param int $width
     * @param int $height
     */
    public function resizeAndCrop($width, $height)
    {
        $targetRatio = $width / $height;
        $actualRatio = $this->getWidth() / $this->getHeight();

        if ($targetRatio == $actualRatio) {
            // Scale to size
            $this->resize($width, $height);
        } elseif ($targetRatio > $actualRatio) {
            // Resize to width, crop extra height
            $this->resizeToWidth($width);
            $this->crop($width, $height);
        } else {
            // Resize to height, crop additional width
            $this->resizeToHeight($height);
            $this->crop($width, $height);
        }
    }


    /**
     *  Now with added Transparency resizing feature
     *  @param int $width
     *  @param int $height
     */
    public function resize($width, $height)
    {
        $newImage = imagecreatetruecolor($width, $height);

        $this->strategy->handleTransparency($newImage, $this->image);

        // Now resample the image
        imagecopyresampled($newImage, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());

        // And allocate to $this
        $this->image = $newImage;
    }




    /**
     * @param int $width
     * @param int $height
     * @param string $trim
     */
    public function crop($width, $height, $trim = 'center')
    {
        $offsetX = 0;
        $offsetY = 0;
        $currentWidth = $this->getWidth();
        $currentHeight = $this->getHeight();

        if ($trim != 'left') {
            $offsetX = $this->getOffsetX($currentWidth, $width, $trim);
            $offsetY = $this->getOffsetY($currentHeight, $height, $trim);
        }

        $newImage = imagecreatetruecolor($width, $height);
        imagecopyresampled($newImage, $this->image, 0, 0, $offsetX, $offsetY, $width, $height, $width, $height);
        $this->image = $newImage;
    }

    /**
     * @param $currentWidth
     * @param $width
     * @param $trim
     * @return float|int
     */
    private function getOffsetX($currentWidth, $width, $trim)
    {
        $offsetX = 0;
        if ($currentWidth > $width) {
            $diff = $currentWidth - $width;
            $offsetX = ($trim == 'center') ? $diff / 2 : $diff; //full diff for trim right
        }
        return $offsetX;
    }

    /**
     * @param $currentHeight
     * @param $height
     * @param $trim
     * @return float|int
     */
    private function getOffsetY($currentHeight, $height, $trim)
    {
        $offsetY = 0;
        if ($currentHeight > $height) {
            $diff = $currentHeight - $height;
            $offsetY = ($trim == 'center') ? $diff / 2 : $diff;
        }
        return $offsetY;
    }

    /**
     * @return mixed
     * @throws NothingLoadedException
     */
    public function getHeader()
    {
        if (!$this->strategy) {
            throw new NothingLoadedException();
        }
        return $this->strategy->getContentType();
    }

    /**
     *  Frees up memory
     */
    public function destroy()
    {
        imagedestroy($this->image);
    }
}


1		<?php
2
3		namespace Del;
4
5		use Del\Image\Exception\NotFoundException;
6		use Del\Image\Exception\NothingLoadedException;
7		use Del\Image\Strategy\GifStrategy;
8		use Del\Image\Strategy\ImageTypeStrategyInterface;
9		use Del\Image\Strategy\JpegStrategy;
10		use Del\Image\Strategy\PngStrategy;
11
12		class Image
13		{
14		/** @var resource $image */
15		private $image;
16
17		/** @var string $fileName */
18		private $fileName;
19
20		/** @var ImageTypeStrategyInterface $strategy */
21		private $strategy;
22
23		/** @var array $strategies */
24		private $strategies = [
25		IMAGETYPE_JPEG => JpegStrategy::class,
26		IMAGETYPE_GIF => GifStrategy::class,
27		IMAGETYPE_PNG => PngStrategy::class,
28		];
29
30		/**
31		* @param string $filename
32		*/
33	21	public function __construct($filename = null)
34		{
35	21	if ($filename !== null) {
36	1	$this->fileName = $filename;
37	1	$this->load($filename);
38		}
39	21	}
40
41		/**
42		* @param $path
43		* @throws NotFoundException
44		*/
45	20	private function checkFileExists($path)
46		{
47	20	if (!file_exists($path)) {
48	1	throw new NotFoundException("$path does not exist");
49		}
50	19	}
51
52
53		/**
54		* @param string $filename
55		* @throws NotFoundException
56		*/
57	20	public function load($filename)
58		{
59	20	$this->checkFileExists($filename);
60	19	$this->strategy = new $this->strategies[getimagesize($filename)[2]]();
61	19	$this->image = $this->strategy->create($filename);
62	19	}
63
64
65		/**
66		* @param string $filename
67		* @param int $compression
68		* @param string $permissions
69		*/
70	3	public function save($filename = null, $compression = 100, $permissions = null)
71		{
72	3	$filename = ($filename) ?: $this->fileName;
73	3	$this->strategy->save($this->image, $filename, $compression);
74	3	$this->setPermissions($filename, $permissions);
75	3	}
76
77		/**
78		* @param $filename
79		* @param $permissions
80		*/
81	3	private function setPermissions($filename, $permissions)
82		{
83	3	if ($permissions !== null) {
84	1	chmod($filename, (int) $permissions);
85		}
86	3	}
87
88
89		/**
90		* @param bool $return either output directly
91		* @return void\|string image contents
92		*/
93	14	public function output($return = false)
94		{
95	14	if ($return) {
96	14	ob_start();
97		}
98
99	14	$this->renderImage();
100
101	14	if ($return) {
102	14	$contents = ob_get_flush();
103	14	return $contents;
104		}
105		}
106
107	14	private function renderImage()
108		{
109	14	$this->strategy->render($this->image);
110	14	}
111
112		/**
113		* @return int
114		*/
115	8	public function getWidth()
116		{
117	8	return imagesx($this->image);
118		}
119
120		/**
121		* @return int
122		*/
123	8	public function getHeight()
124		{
125	8	return imagesy($this->image);
126		}
127
128		/**
129		* @param int $height
130		*/
131	2	public function resizeToHeight($height)
132		{
133	2	$ratio = $height / $this->getHeight();
134	2	$width = $this->getWidth() * $ratio;
135	2	$this->resize($width, $height);
136	2	}
137
138		/**
139		* @param int $width
140		*/
141	2	public function resizeToWidth($width)
142		{
143	2	$ratio = $width / $this->getWidth();
144	2	$height = $this->getHeight() * $ratio;
145	2	$this->resize($width, $height);
146	2	}
147
148		/**
149		* @param int $scale %
150		*/
151	1	public function scale($scale)
152		{
153	1	$width = $this->getWidth() * $scale / 100;
154	1	$height = $this->getHeight() * $scale / 100;
155	1	$this->resize($width, $height);
156	1	}
157
158		/**
159		* @param int $width
160		* @param int $height
161		*/
162	3	public function resizeAndCrop($width, $height)
163		{
164	3	$targetRatio = $width / $height;
165	3	$actualRatio = $this->getWidth() / $this->getHeight();
166
167	3	if ($targetRatio == $actualRatio) {
168		// Scale to size
169	1	$this->resize($width, $height);
170	2	} elseif ($targetRatio > $actualRatio) {
171		// Resize to width, crop extra height
172	1	$this->resizeToWidth($width);
173	1	$this->crop($width, $height);
174		} else {
175		// Resize to height, crop additional width
176	1	$this->resizeToHeight($height);
177	1	$this->crop($width, $height);
178		}
179	3	}
180
181
182		/**
183		* Now with added Transparency resizing feature
184		* @param int $width
185		* @param int $height
186		*/
187	6	public function resize($width, $height)
188		{
189	6	$newImage = imagecreatetruecolor($width, $height);
190
191	6	$this->strategy->handleTransparency($newImage, $this->image);
192
193		// Now resample the image
194	6	imagecopyresampled($newImage, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
195
196		// And allocate to $this
197	6	$this->image = $newImage;
198	6	}
199
200
201
202
203		/**
204		* @param int $width
205		* @param int $height
206		* @param string $trim
207		*/
208	3	public function crop($width, $height, $trim = 'center')
209		{
210	3	$offsetX = 0;
211	3	$offsetY = 0;
212	3	$currentWidth = $this->getWidth();
213	3	$currentHeight = $this->getHeight();
214
215	3	if ($trim != 'left') {
216	3	$offsetX = $this->getOffsetX($currentWidth, $width, $trim);
217	3	$offsetY = $this->getOffsetY($currentHeight, $height, $trim);
218		}
219
220	3	$newImage = imagecreatetruecolor($width, $height);
221	3	imagecopyresampled($newImage, $this->image, 0, 0, $offsetX, $offsetY, $width, $height, $width, $height);
222	3	$this->image = $newImage;
223	3	}
224
225		/**
226		* @param $currentWidth
227		* @param $width
228		* @param $trim
229		* @return float\|int
230		*/
231	3	private function getOffsetX($currentWidth, $width, $trim)
232		{
233	3	$offsetX = 0;
234	3	if ($currentWidth > $width) {
235	2	$diff = $currentWidth - $width;
236	2	$offsetX = ($trim == 'center') ? $diff / 2 : $diff; //full diff for trim right
237		}
238	3	return $offsetX;
239		}
240
241		/**
242		* @param $currentHeight
243		* @param $height
244		* @param $trim
245		* @return float\|int
246		*/
247	3	private function getOffsetY($currentHeight, $height, $trim)
248		{
249	3	$offsetY = 0;
250	3	if ($currentHeight > $height) {
251	2	$diff = $currentHeight - $height;
252	2	$offsetY = ($trim == 'center') ? $diff / 2 : $diff;
253		}
254	3	return $offsetY;
255		}
256
257		/**
258		* @return mixed
259		* @throws NothingLoadedException
260		*/
261	4	public function getHeader()
262		{
263	4	if (!$this->strategy) {
264	1	throw new NothingLoadedException();
265		}
266	3	return $this->strategy->getContentType();
267		}
268
269		/**
270		* Frees up memory
271		*/
272	1	public function destroy()
273		{
274	1	imagedestroy($this->image);
275	1	}
276		}
277

delboy1978uk / image

Push — master ( 8ba72f...a2bda9 )

Image::resizeToWidth() A

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