Resizer::rotateImage()   B
last analyzed

Complexity

Conditions 11
Paths 25

Size

Total Lines 48

Duplication

Lines 13
Ratio 27.08 %

Importance

Changes 0
Metric Value
cc 11
nc 25
nop 0
dl 13
loc 48
rs 7.3166
c 0
b 0
f 0

How to fix   Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
<?php
2
3
namespace XoopsModules\Smallworld\Common;
4
5
/*
6
 You may not change or alter any portion of this comment or credits
7
 of supporting developers from this source code or any supporting source code
8
 which is considered copyrighted (c) material of the original comment or credit authors.
9
10
 This program is distributed in the hope that it will be useful,
11
 but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13
*/
14
15
/**
16
 * Image resizer class for xoops
17
 *
18
 * @copyright      2000-2020 XOOPS Project (https://xoops.org)
19
 * @license        GPL 2.0 or later
20
 * @package        XOOPS common
21
 * @since          1.0
22
 * @min_xoops      2.5.9
23
 * @author         Goffy - Wedega - Email:<[email protected]> - Website:<https://wedega.com>
24
 */
25
class Resizer
26
{
27
    public $sourceFile    = '';
28
    public $endFile       = '';
29
    public $maxWidth      = 0;
30
    public $maxHeight     = 0;
31
    public $imageMimetype = '';
32
    public $jpgQuality    = 90;
33
    public $mergeType     = 0;
34
    public $mergePos      = 0;
35
    public $degrees       = 0;
36
    public $error         = '';
37
38
    /**
39
     * resize image if size exceed given width/height
40
     * @return string|bool
41
     */
42
    public function resizeImage()
43
    {
44
        // check file extension
45
        switch ($this->imageMimetype) {
46
            case'image/png':
47
                $img = imagecreatefrompng($this->sourceFile);
48
                break;
49
            case'image/jpeg':
50
                $img = imagecreatefromjpeg($this->sourceFile);
51
                if (!$img) {
52
                    $img = imagecreatefromstring(file_get_contents($this->sourceFile));
53
                }
54
                break;
55
            case'image/gif':
56
                $img = imagecreatefromgif($this->sourceFile);
57
                break;
58
            default:
59
                return 'Unsupported format';
60
        }
61
62
        $width  = imagesx($img);
63
        $height = imagesy($img);
64
65
        if ($width > $this->maxWidth || $height > $this->maxHeight) {
66
            // recalc image size based on this->maxWidth/this->maxHeight
67
            if ($width > $height) {
68
                if ($width < $this->maxWidth) {
69
                    $new_width = $width;
70 View Code Duplication
                } else {
0 ignored issues
show
Duplication introduced by
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...
71
                    $new_width  = $this->maxWidth;
72
                    $divisor    = $width / $new_width;
73
                    $new_height = floor($height / $divisor);
74
                }
75
            } elseif ($height < $this->maxHeight) {
76
                $new_height = $height;
77 View Code Duplication
            } else {
0 ignored issues
show
Duplication introduced by
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...
78
                $new_height = $this->maxHeight;
79
                $divisor    = $height / $new_height;
80
                $new_width  = floor($width / $divisor);
81
            }
82
83
            // Create a new temporary image.
84
            $tmpimg = imagecreatetruecolor($new_width, $new_height);
0 ignored issues
show
Bug introduced by
The variable $new_width 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

  1. 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;
        }
    }
    
  2. 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;
    }
    
  3. 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...
Bug introduced by
The variable $new_height 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

  1. 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;
        }
    }
    
  2. 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;
    }
    
  3. 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...
85
            imagealphablending($tmpimg, false);
86
            imagesavealpha($tmpimg, true);
87
88
            // Copy and resize old image into new image.
89
            imagecopyresampled($tmpimg, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
90
91
            unlink($this->endFile);
92
            //compressing the file
93
            switch ($this->imageMimetype) {
94
                case'image/png':
95
                    imagepng($tmpimg, $this->endFile, 0);
96
                    break;
97
                case'image/jpeg':
98
                    imagejpeg($tmpimg, $this->endFile, 100);
99
                    break;
100
                case'image/gif':
101
                    imagegif($tmpimg, $this->endFile);
102
                    break;
103
            }
104
105
            // release the memory
106
            imagedestroy($tmpimg);
107
        } else {
108
            return 'copy';
109
        }
110
        imagedestroy($img);
111
112
        return true;
113
    }
114
115
    /**
116
     * @return bool|string
117
     */
118
    public function resizeAndCrop()
119
    {
120
        // check file extension
121 View Code Duplication
        switch ($this->imageMimetype) {
0 ignored issues
show
Duplication introduced by
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...
122
            case 'image/png':
123
                $original = imagecreatefrompng($this->sourceFile);
124
                break;
125
            case 'image/jpeg':
126
                $original = imagecreatefromjpeg($this->sourceFile);
127
                break;
128
            case 'image/gif':
129
                $original = imagecreatefromgif($this->sourceFile);
130
                break;
131
            default:
132
                return 'Unsupported format';
133
        }
134
135
        if (!$original) {
136
            return false;
137
        }
138
        // GET ORIGINAL IMAGE DIMENSIONS
139
        list($original_w, $original_h) = getimagesize($this->sourceFile);
140
141
        // RESIZE IMAGE AND PRESERVE PROPORTIONS
142
        $max_width_resize  = $this->maxWidth;
143
        $max_height_resize = $this->maxHeight;
144
        if ($original_w > $original_h) {
145
            $max_height_ratio = $this->maxHeight / $original_h;
146
            $max_width_resize = (int)round($original_w * $max_height_ratio);
147
        } else {
148
            $max_width_ratio   = $this->maxWidth / $original_w;
149
            $max_height_resize = (int)round($original_h * $max_width_ratio);
150
        }
151
        if ($max_width_resize < $this->maxWidth) {
152
            $max_height_ratio  = $this->maxWidth / $max_width_resize;
153
            $max_height_resize = (int)round($this->maxHeight * $max_height_ratio);
154
            $max_width_resize  = $this->maxWidth;
155
        }
156
157
        // CREATE THE PROPORTIONAL IMAGE RESOURCE
158
        $thumb = imagecreatetruecolor($max_width_resize, $max_height_resize);
159
        if (!imagecopyresampled($thumb, $original, 0, 0, 0, 0, $max_width_resize, $max_height_resize, $original_w, $original_h)) {
160
            return false;
161
        }
162
        // CREATE THE CENTERED CROPPED IMAGE TO THE SPECIFIED DIMENSIONS
163
        $final = imagecreatetruecolor($this->maxWidth, $this->maxHeight);
164
165
        $max_width_offset  = 0;
166
        $max_height_offset = 0;
167
        if ($this->maxWidth < $max_width_resize) {
168
            $max_width_offset = (int)round(($max_width_resize - $this->maxWidth) / 2);
169
        } else {
170
            $max_height_offset = (int)round(($max_height_resize - $this->maxHeight) / 2);
171
        }
172
173
        if (!imagecopy($final, $thumb, 0, 0, $max_width_offset, $max_height_offset, $max_width_resize, $max_height_resize)) {
174
            return false;
175
        }
176
        // STORE THE FINAL IMAGE - WILL OVERWRITE $this->endFile
177
        if (!imagejpeg($final, $this->endFile, $this->jpgQuality)) {
178
            return false;
179
        }
180
181
        return true;
182
    }
183
184
    public function mergeImage()
185
    {
186
        $dest = imagecreatefromjpeg($this->endFile);
187
        $src  = imagecreatefromjpeg($this->sourceFile);
188
        if (4 == $this->mergeType) {
189
            $imgWidth  = (int)round($this->maxWidth / 2 - 1);
190
            $imgHeight = (int)round($this->maxHeight / 2 - 1);
191
            $posCol2   = (int)round($this->maxWidth / 2 + 1);
192
            $posRow2   = (int)round($this->maxHeight / 2 + 1);
193
            switch ($this->mergePos) {
194
                case 1:
195
                    imagecopy($dest, $src, 0, 0, 0, 0, $imgWidth, $imgHeight); //top left
196
                    break;
197
                case 2:
198
                    imagecopy($dest, $src, $posCol2, 0, 0, 0, $imgWidth, $imgHeight); //top right
199
                    break;
200
                case 3:
201
                    imagecopy($dest, $src, 0, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom left
202
                    break;
203
                case 4:
204
                    imagecopy($dest, $src, $posCol2, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom right
205
                    break;
206
            }
207
        }
208
        if (6 == $this->mergeType) {
209
            $imgWidth  = (int)round($this->maxWidth / 3 - 1);
210
            $imgHeight = (int)round($this->maxHeight / 2 - 1);
211
            $posCol2   = (int)round($this->maxWidth / 3 + 1);
212
            $posCol3   = $posCol2 + (int)round($this->maxWidth / 3 + 1);
213
            $posRow2   = (int)round($this->maxHeight / 2 + 1);
214
215
            switch ($this->mergePos) {
216
                case 1:
217
                    imagecopy($dest, $src, 0, 0, 0, 0, $imgWidth, $imgHeight); //top left
218
                    break;
219
                case 2:
220
                    imagecopy($dest, $src, $posCol2, 0, 0, 0, $imgWidth, $imgHeight); //top center
221
                    break;
222
                case 3:
223
                    imagecopy($dest, $src, $posCol3, 0, 0, 0, $imgWidth, $imgHeight); //top right
224
                    break;
225
                case 4:
226
                    imagecopy($dest, $src, 0, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom left
227
                    break;
228
                case 5:
229
                    imagecopy($dest, $src, $posCol2, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom center
230
                    break;
231
                case 6:
232
                    imagecopy($dest, $src, $posCol3, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom right
233
                    break;
234
            }
235
        }
236
        imagejpeg($dest, $this->endFile);
237
238
        imagedestroy($src);
239
        imagedestroy($dest);
240
    }
241
242
    /**
243
     * @return bool|string
244
     */
245
    public function rotateImage()
246
    {
247
        // check file extension
248 View Code Duplication
        switch ($this->imageMimetype) {
0 ignored issues
show
Duplication introduced by
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...
249
            case 'image/png':
250
                $original = imagecreatefrompng($this->sourceFile);
251
                break;
252
            case 'image/jpeg':
253
                $original = imagecreatefromjpeg($this->sourceFile);
254
                break;
255
            case 'image/gif':
256
                $original = imagecreatefromgif($this->sourceFile);
257
                break;
258
            default:
259
                return 'Unsupported format';
260
        }
261
262
        if (!$original) {
263
            return false;
264
        }
265
        // Rotate
266
        $tmpimg = imagerotate($original, $this->degrees, 0);
267
268
        unlink($this->endFile);
269
        //compressing the file
270
        switch ($this->imageMimetype) {
271
            case 'image/png':
272
                if (!imagepng($tmpimg, $this->endFile, 0)) {
273
                    return false;
274
                }
275
                break;
276
            case 'image/jpeg':
277
                if (!imagejpeg($tmpimg, $this->endFile, $this->jpgQuality)) {
278
                    return false;
279
                }
280
                break;
281
            case 'image/gif':
282
                if (!imagegif($tmpimg, $this->endFile)) {
283
                    return false;
284
                }
285
                break;
286
        }
287
288
        // release the memory
289
        imagedestroy($tmpimg);
290
291
        return true;
292
    }
293
}
294