ImageTrait::calculateAdditionalWhiteSpace() - Code Metrics - 2amigos/qrcode-library - Measure and Improve Code Quality continuously with Scrutinizer

ImageTrait::calculateAdditionalWhiteSpace() A
last analyzed 2020-01-31 21:33 UTC

↳ Parent: ImageTrait

Complexity

Conditions	5
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	30

Importance

Changes

Metric	Value
dl	0
loc	23
ccs	0
cts	21
cp	0
rs	9.2408
c	0
b	0
f	0
cc	5
nc	4
nop	2
crap	30

<?php

/*
 * This file is part of the 2amigos/qrcode-library project.
 *
 * (c) 2amigOS! <http://2amigos.us/>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Da\QrCode\Traits;

use BaconQrCode\Renderer\Image\Png;
use BaconQrCode\Writer;
use Da\QrCode\Contracts\LabelInterface;
use Da\QrCode\Contracts\QrCodeInterface;
use Da\QrCode\Exception\BadMethodCallException;
use Da\QrCode\Exception\ValidationException;
use Da\QrCode\Renderer\Jpg;
use Zxing\QrReader;

trait ImageTrait
{
    protected $validate = false;

    /**
     * Whether to validate result or not.
     *
     * @param bool $validate
     *
     * @return $this
     */
    public function validateResult(bool $validate): self
    {
        $this->validate = $validate;

        return $this;
    }

    /**
     * {@inheritdoc}
     * @throws ValidationException
     * @throws BadMethodCallException
     */
    public function writeString(QrCodeInterface $qrCode): string
    {
        /** @var Png|Jpg $renderer */
        $renderer = $this->renderer;
class MyClass { }

$x = new MyClass();
$x->foo = true;

        $renderer->setWidth($qrCode->getSize());
        $renderer->setHeight($qrCode->getSize());
        $renderer->setMargin(0);
        $renderer->setForegroundColor($this->convertColor($qrCode->getForegroundColor()));
trait Idable {
    public function equalIds(Idable $other) {
        return $this->getId() === $other->getId();
    }
}
        $renderer->setBackgroundColor($this->convertColor($qrCode->getBackgroundColor()));
trait Idable {
    public function equalIds(Idable $other) {
        return $this->getId() === $other->getId();
    }
}
        $writer = new Writer($renderer);
        $string = $writer->writeString(
            $qrCode->getText(),
            $qrCode->getEncoding(),
            $this->convertErrorCorrectionLevel($qrCode->getErrorCorrectionLevel())
trait Idable {
    public function equalIds(Idable $other) {
        return $this->getId() === $other->getId();
    }
}
        );
        $image = imagecreatefromstring($string);
        $image = $this->addMargin(
            $image,
            $qrCode->getMargin(),
            $qrCode->getSize(),
            $qrCode->getForegroundColor(),
            $qrCode->getBackgroundColor()
        );

        if ($qrCode->getLogoPath()) {
            $image = $this->addLogo($image, $qrCode->getLogoPath(), $qrCode->getLogoWidth());
        }

        if ($qrCode->getLabel()) {
            $image = $this->addLabel(
                $image,
                $qrCode->getLabel(),
                $qrCode->getForegroundColor(),
                $qrCode->getBackgroundColor()
            );
        }
        $string = $this->imageToString($image);
trait Idable {
    public function equalIds(Idable $other) {
        return $this->getId() === $other->getId();
    }
}
        if ($this->validate) {
            $reader = new QrReader($string, QrReader::SOURCE_TYPE_BLOB);
            if ($reader->text() !== $qrCode->getText()) {
                throw new ValidationException(
                    sprintf(
                        'Built-in validation reader read "%s" instead of "%s"' .
                        'Adjust your parameters to increase readability or disable built-in validation.',
                        $reader->text(),
                        $qrCode->getText()
                    )
                );
            }
        }

        return $string;
    }

    /**
     * @param resource $sourceImage
     * @param int      $margin
     * @param int      $size
     * @param int[]    $foregroundColor
     * @param int[]    $backgroundColor
     *
     * @return resource
     */
    protected function addMargin($sourceImage, $margin, $size, array $foregroundColor, array $backgroundColor)
    {
        $additionalWhitespace = $this->calculateAdditionalWhiteSpace($sourceImage, $foregroundColor);

        if ($additionalWhitespace === 0 && $margin === 0) {
            return $sourceImage;
        }

        $targetImage = imagecreatetruecolor($size + $margin * 2, $size + $margin * 2);
        $backgroundColor = imagecolorallocate(
            $targetImage,
            $backgroundColor['r'],
            $backgroundColor['g'],
            $backgroundColor['b']
        );
        imagefill($targetImage, 0, 0, $backgroundColor);
        imagecopyresampled(
            $targetImage,
            $sourceImage,
            $margin,
            $margin,
            $additionalWhitespace,
            $additionalWhitespace,
            $size,
            $size,
            $size - 2 * $additionalWhitespace,
            $size - 2 * $additionalWhitespace
        );

        return $targetImage;
    }

    /**
     * @param resource $image
     * @param int[]    $foregroundColor
     *
     * @return int
     */
    protected function calculateAdditionalWhiteSpace($image, array $foregroundColor): int
    {
        $width = imagesx($image);
        $height = imagesy($image);
        $foregroundColor = imagecolorallocate(
            $image,
            $foregroundColor['r'],
            $foregroundColor['g'],
            $foregroundColor['b']
        );
        $whitespace = $width;
        for ($y = 0; $y < $height; $y++) {
            for ($x = 0; $x < $width; $x++) {
                $color = imagecolorat($image, $x, $y);
                if ($color == $foregroundColor || $x == $whitespace) {
                    $whitespace = min($whitespace, $x);
                    break;
                }
            }
        }

        return $whitespace;
    }

    /**
     * @param resource $sourceImage
     * @param string   $logoPath
     * @param int      $logoWidth
     *
     * @return resource
     */
    protected function addLogo($sourceImage, $logoPath, $logoWidth = null)
    {
        $logoImage = imagecreatefromstring(file_get_contents($logoPath));
        $logoSourceWidth = imagesx($logoImage);
        $logoSourceHeight = imagesy($logoImage);
        $logoTargetWidth = $logoWidth;

        if ($logoTargetWidth === null) {
            $logoTargetWidth = $logoSourceWidth;
            $logoTargetHeight = $logoSourceHeight;
        } else {
            $scale = $logoTargetWidth / $logoSourceWidth;
            $logoTargetHeight = intval($scale * imagesy($logoImage));
        }

        $logoX = imagesx($sourceImage) / 2 - $logoTargetWidth / 2;
        $logoY = imagesy($sourceImage) / 2 - $logoTargetHeight / 2;

        imagecopyresampled(
            $sourceImage,
            $logoImage,
            $logoX,
            $logoY,
            0,
            0,
            $logoTargetWidth,
            $logoTargetHeight,
            $logoSourceWidth,
            $logoSourceHeight
        );

        return $sourceImage;
    }

    /**
     * @param resource       $sourceImage
     * @param LabelInterface $label
     * @param int[]          $foregroundColor
     * @param int[]          $backgroundColor
     *
     * @throws BadMethodCallException
     * @return resource
     */
    protected function addLabel(
        $sourceImage,
        LabelInterface $label,
        array $foregroundColor,
        array $backgroundColor
    ) {
        if (!function_exists('imagettfbbox')) {
            throw new BadMethodCallException('Missing function "imagettfbbox". Did you install the FreeType library?');
        }
        $labelText = $label->getText();
        $labelFontSize = $label->getFontSize();
        $labelFontPath = $label->getFont();
        $labelMargin = $label->getMargins();
        $labelAlignment = $label->getAlignment();

        $labelBox = imagettfbbox($labelFontSize, 0, $labelFontPath, $labelText);
        $labelBoxWidth = ($labelBox[2] - $labelBox[0]);
        $labelBoxHeight = ($labelBox[0] - $labelBox[7]);
        $sourceWidth = imagesx($sourceImage);
        $sourceHeight = imagesy($sourceImage);
        $targetWidth = $sourceWidth;
        $targetHeight = $sourceHeight + $labelBoxHeight + $labelMargin['t'] + $labelMargin['b'];

        // Create empty target image
        $targetImage = imagecreatetruecolor($targetWidth, $targetHeight);
        $foregroundColor = imagecolorallocate(
            $targetImage,
            $foregroundColor['r'],
            $foregroundColor['g'],
            $foregroundColor['b']
        );
        $backgroundColor = imagecolorallocate(
            $targetImage,
            $backgroundColor['r'],
            $backgroundColor['g'],
            $backgroundColor['b']
        );
        imagefill($targetImage, 0, 0, $backgroundColor);
        // Copy source image to target image
        imagecopyresampled(
            $targetImage,
            $sourceImage,
            0,
            0,
            0,
            0,
            $sourceWidth,
            $sourceHeight,
            $sourceWidth,
            $sourceHeight
        );
        switch ($labelAlignment) {
            case LabelInterface::ALIGN_LEFT:
                $labelX = $labelMargin['l'];
                break;
            case LabelInterface::ALIGN_RIGHT:
                $labelX = $targetWidth - $labelBoxWidth - $labelMargin['r'];
                break;
            default:
                $labelX = (int)($targetWidth / 2 - $labelBoxWidth / 2);
                break;
        }
        $labelY = $targetHeight - $labelMargin['b'];
        imagettftext($targetImage, $labelFontSize, 0, $labelX, $labelY, $foregroundColor, $labelFontPath, $labelText);

        return $targetImage;
    }
}


1			<?php
2
3			/*
4			* This file is part of the 2amigos/qrcode-library project.
5			*
6			* (c) 2amigOS! <http://2amigos.us/>
7			*
8			* For the full copyright and license information, please view
9			* the LICENSE file that was distributed with this source code.
10			*/
11
12			namespace Da\QrCode\Traits;
13
14			use BaconQrCode\Renderer\Image\Png;
15			use BaconQrCode\Writer;
16			use Da\QrCode\Contracts\LabelInterface;
17			use Da\QrCode\Contracts\QrCodeInterface;
18			use Da\QrCode\Exception\BadMethodCallException;
19			use Da\QrCode\Exception\ValidationException;
20			use Da\QrCode\Renderer\Jpg;
21			use Zxing\QrReader;
22
23			trait ImageTrait
24			{
25			protected $validate = false;
26
27			/**
28			* Whether to validate result or not.
29			*
30			* @param bool $validate
31			*
32			* @return $this
33			*/
34			public function validateResult(bool $validate): self
35			{
36			$this->validate = $validate;
37
38			return $this;
39			}
40
41			/**
42			* {@inheritdoc}
43			* @throws ValidationException
44			* @throws BadMethodCallException
45			*/
46			public function writeString(QrCodeInterface $qrCode): string
47			{
48			/** @var Png\|Jpg $renderer */
49			$renderer = $this->renderer;
			0 ignored issues – show Bug introduced 2017-08-25 10:44 UTC by Report Bug Copy Issue Report The property `renderer` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
50
51			$renderer->setWidth($qrCode->getSize());
52			$renderer->setHeight($qrCode->getSize());
53			$renderer->setMargin(0);
54			$renderer->setForegroundColor($this->convertColor($qrCode->getForegroundColor()));
			0 ignored issues – show Bug introduced 2017-08-25 10:44 UTC by Report Bug Copy Issue Report It seems like `convertColor()` must be provided by classes using this trait. How about adding it as abstract method to this trait? This check looks for methods that are used by a trait but not required by it. To illustrate, let’s look at the following code example trait Idable { public function equalIds(Idable $other) { return $this->getId() === $other->getId(); } } The trait `Idable` provides a method `equalsId` that in turn relies on the method `getId()`. If this method does not exist on a class mixing in this trait, the method will fail. Adding the `getId()` as an abstract method to the trait will make sure it is available. Loading history...
55			$renderer->setBackgroundColor($this->convertColor($qrCode->getBackgroundColor()));
			0 ignored issues – show Bug introduced 2017-08-25 10:44 UTC by Report Bug Copy Issue Report It seems like `convertColor()` must be provided by classes using this trait. How about adding it as abstract method to this trait? This check looks for methods that are used by a trait but not required by it. To illustrate, let’s look at the following code example trait Idable { public function equalIds(Idable $other) { return $this->getId() === $other->getId(); } } The trait `Idable` provides a method `equalsId` that in turn relies on the method `getId()`. If this method does not exist on a class mixing in this trait, the method will fail. Adding the `getId()` as an abstract method to the trait will make sure it is available. Loading history...
56			$writer = new Writer($renderer);
57			$string = $writer->writeString(
58			$qrCode->getText(),
59			$qrCode->getEncoding(),
60			$this->convertErrorCorrectionLevel($qrCode->getErrorCorrectionLevel())
			0 ignored issues – show Bug introduced 2017-08-25 10:44 UTC by Report Bug Copy Issue Report It seems like `convertErrorCorrectionLevel()` must be provided by classes using this trait. How about adding it as abstract method to this trait? This check looks for methods that are used by a trait but not required by it. To illustrate, let’s look at the following code example trait Idable { public function equalIds(Idable $other) { return $this->getId() === $other->getId(); } } The trait `Idable` provides a method `equalsId` that in turn relies on the method `getId()`. If this method does not exist on a class mixing in this trait, the method will fail. Adding the `getId()` as an abstract method to the trait will make sure it is available. Loading history...
61			);
62			$image = imagecreatefromstring($string);
63			$image = $this->addMargin(
64			$image,
65			$qrCode->getMargin(),
66			$qrCode->getSize(),
67			$qrCode->getForegroundColor(),
68			$qrCode->getBackgroundColor()
69			);
70
71			if ($qrCode->getLogoPath()) {
72			$image = $this->addLogo($image, $qrCode->getLogoPath(), $qrCode->getLogoWidth());
73			}
74
75			if ($qrCode->getLabel()) {
76			$image = $this->addLabel(
77			$image,
78			$qrCode->getLabel(),
79			$qrCode->getForegroundColor(),
80			$qrCode->getBackgroundColor()
81			);
82			}
83			$string = $this->imageToString($image);
			0 ignored issues – show Bug introduced 2017-08-25 10:44 UTC by Report Bug Copy Issue Report It seems like `imageToString()` must be provided by classes using this trait. How about adding it as abstract method to this trait? This check looks for methods that are used by a trait but not required by it. To illustrate, let’s look at the following code example trait Idable { public function equalIds(Idable $other) { return $this->getId() === $other->getId(); } } The trait `Idable` provides a method `equalsId` that in turn relies on the method `getId()`. If this method does not exist on a class mixing in this trait, the method will fail. Adding the `getId()` as an abstract method to the trait will make sure it is available. Loading history...
84			if ($this->validate) {
85			$reader = new QrReader($string, QrReader::SOURCE_TYPE_BLOB);
86			if ($reader->text() !== $qrCode->getText()) {
87			throw new ValidationException(
88			sprintf(
89			'Built-in validation reader read "%s" instead of "%s"' .
90			'Adjust your parameters to increase readability or disable built-in validation.',
91			$reader->text(),
92			$qrCode->getText()
93			)
94			);
95			}
96			}
97
98			return $string;
99			}
100
101			/**
102			* @param resource $sourceImage
103			* @param int $margin
104			* @param int $size
105			* @param int[] $foregroundColor
106			* @param int[] $backgroundColor
107			*
108			* @return resource
109			*/
110			protected function addMargin($sourceImage, $margin, $size, array $foregroundColor, array $backgroundColor)
111			{
112			$additionalWhitespace = $this->calculateAdditionalWhiteSpace($sourceImage, $foregroundColor);
113
114			if ($additionalWhitespace === 0 && $margin === 0) {
115			return $sourceImage;
116			}
117
118			$targetImage = imagecreatetruecolor($size + $margin * 2, $size + $margin * 2);
119			$backgroundColor = imagecolorallocate(
120			$targetImage,
121			$backgroundColor['r'],
122			$backgroundColor['g'],
123			$backgroundColor['b']
124			);
125			imagefill($targetImage, 0, 0, $backgroundColor);
126			imagecopyresampled(
127			$targetImage,
128			$sourceImage,
129			$margin,
130			$margin,
131			$additionalWhitespace,
132			$additionalWhitespace,
133			$size,
134			$size,
135			$size - 2 * $additionalWhitespace,
136			$size - 2 * $additionalWhitespace
137			);
138
139			return $targetImage;
140			}
141
142			/**
143			* @param resource $image
144			* @param int[] $foregroundColor
145			*
146			* @return int
147			*/
148			protected function calculateAdditionalWhiteSpace($image, array $foregroundColor): int
149			{
150			$width = imagesx($image);
151			$height = imagesy($image);
152			$foregroundColor = imagecolorallocate(
153			$image,
154			$foregroundColor['r'],
155			$foregroundColor['g'],
156			$foregroundColor['b']
157			);
158			$whitespace = $width;
159			for ($y = 0; $y < $height; $y++) {
160			for ($x = 0; $x < $width; $x++) {
161			$color = imagecolorat($image, $x, $y);
162			if ($color == $foregroundColor \|\| $x == $whitespace) {
163			$whitespace = min($whitespace, $x);
164			break;
165			}
166			}
167			}
168
169			return $whitespace;
170			}
171
172			/**
173			* @param resource $sourceImage
174			* @param string $logoPath
175			* @param int $logoWidth
176			*
177			* @return resource
178			*/
179			protected function addLogo($sourceImage, $logoPath, $logoWidth = null)
180			{
181			$logoImage = imagecreatefromstring(file_get_contents($logoPath));
182			$logoSourceWidth = imagesx($logoImage);
183			$logoSourceHeight = imagesy($logoImage);
184			$logoTargetWidth = $logoWidth;
185
186			if ($logoTargetWidth === null) {
187			$logoTargetWidth = $logoSourceWidth;
188			$logoTargetHeight = $logoSourceHeight;
189			} else {
190			$scale = $logoTargetWidth / $logoSourceWidth;
191			$logoTargetHeight = intval($scale * imagesy($logoImage));
192			}
193
194			$logoX = imagesx($sourceImage) / 2 - $logoTargetWidth / 2;
195			$logoY = imagesy($sourceImage) / 2 - $logoTargetHeight / 2;
196
197			imagecopyresampled(
198			$sourceImage,
199			$logoImage,
200			$logoX,
201			$logoY,
202			0,
203			0,
204			$logoTargetWidth,
205			$logoTargetHeight,
206			$logoSourceWidth,
207			$logoSourceHeight
208			);
209
210			return $sourceImage;
211			}
212
213			/**
214			* @param resource $sourceImage
215			* @param LabelInterface $label
216			* @param int[] $foregroundColor
217			* @param int[] $backgroundColor
218			*
219			* @throws BadMethodCallException
220			* @return resource
221			*/
222			protected function addLabel(
223			$sourceImage,
224			LabelInterface $label,
225			array $foregroundColor,
226			array $backgroundColor
227			) {
228			if (!function_exists('imagettfbbox')) {
229			throw new BadMethodCallException('Missing function "imagettfbbox". Did you install the FreeType library?');
230			}
231			$labelText = $label->getText();
232			$labelFontSize = $label->getFontSize();
233			$labelFontPath = $label->getFont();
234			$labelMargin = $label->getMargins();
235			$labelAlignment = $label->getAlignment();
236
237			$labelBox = imagettfbbox($labelFontSize, 0, $labelFontPath, $labelText);
238			$labelBoxWidth = ($labelBox[2] - $labelBox[0]);
239			$labelBoxHeight = ($labelBox[0] - $labelBox[7]);
240			$sourceWidth = imagesx($sourceImage);
241			$sourceHeight = imagesy($sourceImage);
242			$targetWidth = $sourceWidth;
243			$targetHeight = $sourceHeight + $labelBoxHeight + $labelMargin['t'] + $labelMargin['b'];
244
245			// Create empty target image
246			$targetImage = imagecreatetruecolor($targetWidth, $targetHeight);
247			$foregroundColor = imagecolorallocate(
248			$targetImage,
249			$foregroundColor['r'],
250			$foregroundColor['g'],
251			$foregroundColor['b']
252			);
253			$backgroundColor = imagecolorallocate(
254			$targetImage,
255			$backgroundColor['r'],
256			$backgroundColor['g'],
257			$backgroundColor['b']
258			);
259			imagefill($targetImage, 0, 0, $backgroundColor);
260			// Copy source image to target image
261			imagecopyresampled(
262			$targetImage,
263			$sourceImage,
264			0,
265			0,
266			0,
267			0,
268			$sourceWidth,
269			$sourceHeight,
270			$sourceWidth,
271			$sourceHeight
272			);
273			switch ($labelAlignment) {
274			case LabelInterface::ALIGN_LEFT:
275			$labelX = $labelMargin['l'];
276			break;
277			case LabelInterface::ALIGN_RIGHT:
278			$labelX = $targetWidth - $labelBoxWidth - $labelMargin['r'];
279			break;
280			default:
281			$labelX = (int)($targetWidth / 2 - $labelBoxWidth / 2);
282			break;
283			}
284			$labelY = $targetHeight - $labelMargin['b'];
285			imagettftext($targetImage, $labelFontSize, 0, $labelX, $labelY, $foregroundColor, $labelFontPath, $labelText);
286
287			return $targetImage;
288			}
289			}
290

2amigos / qrcode-library

ImageTrait::calculateAdditionalWhiteSpace() A last analyzed 2020-01-31 21:33 UTC

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ImageTrait::calculateAdditionalWhiteSpace() A
last analyzed 2020-01-31 21:33 UTC