Converter::toHSL() - Code Metrics - Inspection of "Merge pull request #6 from MarcusSchwarz/analysis-..." - MarcusSchwarz/lesserphp - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 9c4912...24f91d )

by Marcus

created 2017-03-09 19:53 UTC

Converter::toHSL() D

↳ Parent: Converter

Complexity

Conditions	9
Paths	37

Size

Total Lines	45
Code Lines	30

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	26
CRAP Score	9.0041

Importance

Changes

Metric	Value
dl	0
loc	45
ccs	26
cts	27
cp	0.963
rs	4.909
c	0
b	0
f	0
cc	9
eloc	30
nc	37
nop	1
crap	9.0041

<?php

namespace LesserPhp\Color;

/**
 * lesserphp
 * https://www.maswaba.de/lesserphp
 *
 * LESS CSS compiler, adapted from http://lesscss.org
 *
 * Copyright 2013, Leaf Corcoran <[email protected]>
 * Copyright 2016, Marcus Schwarz <[email protected]>
 * Licensed under MIT or GPLv3, see LICENSE
 * @package LesserPhp
 */
class Converter
{

    /**
     * @param array $color
     *
     * @return array
     */
    public function toHSL($color)
    {
        if ($color[0] === 'hsl') {
            return $color;
        }

        $r = $color[1] / 255;
        $g = $color[2] / 255;
        $b = $color[3] / 255;

        $min = min($r, $g, $b);
        $max = max($r, $g, $b);

        $L = ($min + $max) / 2;
        if ($min == $max) {
            $S = $H = 0;
        } else {
            if ($L < 0.5) {
                $S = ($max - $min) / ($max + $min);
            } else {
                $S = ($max - $min) / (2.0 - $max - $min);
            }

            if ($r == $max) {
                $H = ($g - $b) / ($max - $min);
            } elseif ($g == $max) {
                $H = 2.0 + ($b - $r) / ($max - $min);
            } elseif ($b == $max) {
                $H = 4.0 + ($r - $g) / ($max - $min);
            }
        }

        $out = [
            'hsl',
            ($H < 0 ? $H + 6 : $H) * 60,
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
            $S * 100,
            $L * 100,
        ];

        if (count($color) > 4) {
            $out[] = $color[4];
        } // copy alpha

        return $out;
    }

    /**
     * @param double $comp
     * @param double $temp1
     * @param double $temp2
     *
     * @return double
     */
    protected function toRGBHelper($comp, $temp1, $temp2)
    {
        if ($comp < 0) {
            $comp += 1.0;
        } elseif ($comp > 1) {
            $comp -= 1.0;
        }

        if (6 * $comp < 1) {

            return $temp1 + ($temp2 - $temp1) * 6 * $comp;
        }
        if (2 * $comp < 1) {
            return $temp2;
        }
        if (3 * $comp < 2) {

            return $temp1 + ($temp2 - $temp1) * ((2 / 3) - $comp) * 6;
        }

        return $temp1;
    }

    /**
     * Converts a hsl array into a color value in rgb.
     * Expects H to be in range of 0 to 360, S and L in 0 to 100
     *
     * @param array $color
     *
     * @return array
     */
    public function toRGB(array $color)
    {
        if ($color[0] === 'color') {
            return $color;
        }

        $H = $color[1] / 360;
        $S = $color[2] / 100;
        $L = $color[3] / 100;

        if ($S === 0) {
            $r = $g = $b = $L;
        } else {
            $temp2 = $L < 0.5 ? $L * (1.0 + $S) : $L + $S - $L * $S;
            $temp1 = 2.0 * $L - $temp2;

            $r = $this->toRGBHelper($H + 1 / 3, $temp1, $temp2);
            $g = $this->toRGBHelper($H, $temp1, $temp2);
            $b = $this->toRGBHelper($H - 1 / 3, $temp1, $temp2);
        }

        // $out = array('color', round($r*255), round($g*255), round($b*255));

        $out = ['color', $r * 255, $g * 255, $b * 255];
        if (count($color) > 4) {
            $out[] = $color[4];
        } // copy alpha

        return $out;
    }

    /**
     * @param int $v
     * @param int $max
     * @param int $min
     *
     * @return mixed
     */
    public function clamp($v, $max = 1, $min = 0)
    {
        return min($max, max($min, $v));
    }
}


1			<?php
2
3			namespace LesserPhp\Color;
4
5			/**
6			* lesserphp
7			* https://www.maswaba.de/lesserphp
8			*
9			* LESS CSS compiler, adapted from http://lesscss.org
10			*
11			* Copyright 2013, Leaf Corcoran <[email protected]>
12			* Copyright 2016, Marcus Schwarz <[email protected]>
13			* Licensed under MIT or GPLv3, see LICENSE
14			* @package LesserPhp
15			*/
16			class Converter
17			{
18
19			/**
20			* @param array $color
21			*
22			* @return array
23			*/
24	2		public function toHSL($color)
25			{
26	2		if ($color[0] === 'hsl') {
27			return $color;
28			}
29
30	2		$r = $color[1] / 255;
31	2		$g = $color[2] / 255;
32	2		$b = $color[3] / 255;
33
34	2		$min = min($r, $g, $b);
35	2		$max = max($r, $g, $b);
36
37	2		$L = ($min + $max) / 2;
38	2		if ($min == $max) {
39	2		$S = $H = 0;
40			} else {
41	1		if ($L < 0.5) {
42	1		$S = ($max - $min) / ($max + $min);
43			} else {
44	1		$S = ($max - $min) / (2.0 - $max - $min);
45			}
46
47	1		if ($r == $max) {
48	1		$H = ($g - $b) / ($max - $min);
49	1		} elseif ($g == $max) {
50	1		$H = 2.0 + ($b - $r) / ($max - $min);
51	1		} elseif ($b == $max) {
52	1		$H = 4.0 + ($r - $g) / ($max - $min);
53			}
54			}
55
56			$out = [
57	2		'hsl',
58	2		($H < 0 ? $H + 6 : $H) * 60,
			0 ignored issues – show Bug introduced 2017-03-02 09:45 UTC by Report Bug Copy Issue Report The variable `$H` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
59	2		$S * 100,
60	2		$L * 100,
61			];
62
63	2		if (count($color) > 4) {
64	1		$out[] = $color[4];
65			} // copy alpha
66
67	2		return $out;
68			}
69
70			/**
71			* @param double $comp
72			* @param double $temp1
73			* @param double $temp2
74			*
75			* @return double
76			*/
77	1		protected function toRGBHelper($comp, $temp1, $temp2)
78			{
79	1		if ($comp < 0) {
80	1		$comp += 1.0;
81	1		} elseif ($comp > 1) {
82	1		$comp -= 1.0;
83			}
84
85	1	View Code Duplication	if (6 * $comp < 1) {
			0 ignored issues – show Duplication introduced 2017-03-02 09:45 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
86	1		return $temp1 + ($temp2 - $temp1) * 6 * $comp;
87			}
88	1		if (2 * $comp < 1) {
89	1		return $temp2;
90			}
91	1	View Code Duplication	if (3 * $comp < 2) {
			0 ignored issues – show Duplication introduced 2017-03-02 09:45 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
92	1		return $temp1 + ($temp2 - $temp1) * ((2 / 3) - $comp) * 6;
93			}
94
95	1		return $temp1;
96			}
97
98			/**
99			* Converts a hsl array into a color value in rgb.
100			* Expects H to be in range of 0 to 360, S and L in 0 to 100
101			*
102			* @param array $color
103			*
104			* @return array
105			*/
106	2		public function toRGB(array $color)
107			{
108	2		if ($color[0] === 'color') {
109			return $color;
110			}
111
112	2		$H = $color[1] / 360;
113	2		$S = $color[2] / 100;
114	2		$L = $color[3] / 100;
115
116	2		if ($S === 0) {
117	2		$r = $g = $b = $L;
118			} else {
119	1		$temp2 = $L < 0.5 ? $L * (1.0 + $S) : $L + $S - $L * $S;
120	1		$temp1 = 2.0 * $L - $temp2;
121
122	1		$r = $this->toRGBHelper($H + 1 / 3, $temp1, $temp2);
123	1		$g = $this->toRGBHelper($H, $temp1, $temp2);
124	1		$b = $this->toRGBHelper($H - 1 / 3, $temp1, $temp2);
125			}
126
127			// $out = array('color', round($r255), round($g255), round($b*255));
			0 ignored issues – show Unused Code Comprehensibility introduced 2017-03-02 09:45 UTC by Report Bug Copy Issue Report `62%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
128	2		$out = ['color', $r * 255, $g * 255, $b * 255];
129	2		if (count($color) > 4) {
130	1		$out[] = $color[4];
131			} // copy alpha
132
133	2		return $out;
134			}
135
136			/**
137			* @param int $v
138			* @param int $max
139			* @param int $min
140			*
141			* @return mixed
142			*/
143	2		public function clamp($v, $max = 1, $min = 0)
144			{
145	2		return min($max, max($min, $v));
146			}
147			}
148

MarcusSchwarz / lesserphp

Push — master ( 9c4912...24f91d )

Converter::toHSL() D

Complexity

Size

Duplication

Code Coverage

Importance

Available Fixes

Duplication Side-by-Side

Filter issues like