ggoffy /
modulebuilder
| Total Complexity | 48 |
| Total Lines | 269 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Resizer often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Resizer, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Resizer |
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| 27 | { |
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| 28 | public $sourceFile = ''; |
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| 29 | public $endFile = ''; |
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| 30 | public $maxWidth = 0; |
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| 31 | public $maxHeight = 0; |
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| 32 | public $imageMimetype = ''; |
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| 33 | public $jpgQuality = 90; |
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| 34 | public $mergeType = 0; |
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| 35 | public $mergePos = 0; |
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| 36 | public $degrees = 0; |
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| 37 | public $error = ''; |
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| 38 | |||
| 39 | /** |
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| 40 | * resize image if size exceed given width/height |
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| 41 | * @return string|bool |
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| 42 | */ |
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| 43 | public function resizeImage() |
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| 44 | { |
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| 45 | // check file extension |
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| 46 | switch ($this->imageMimetype) { |
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| 47 | case 'image/png': |
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| 48 | $img = imagecreatefrompng($this->sourceFile); |
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| 49 | break; |
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| 50 | case 'image/jpeg': |
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| 51 | $img = imagecreatefromjpeg($this->sourceFile); |
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| 52 | if (!$img) { |
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| 53 | $img = imagecreatefromstring(file_get_contents($this->sourceFile)); |
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| 54 | } |
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| 55 | break; |
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| 56 | case 'image/gif': |
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| 57 | $img = imagecreatefromgif($this->sourceFile); |
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| 58 | break; |
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| 59 | default: |
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| 60 | return 'Unsupported format'; |
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| 61 | } |
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| 62 | |||
| 63 | $width = imagesx($img); |
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| 64 | $height = imagesy($img); |
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| 65 | |||
| 66 | if ($width > $this->maxWidth || $height > $this->maxHeight) { |
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| 67 | // recalc image size based on this->maxWidth/this->maxHeight |
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| 68 | $new_width = 0; |
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| 69 | $new_height = 0; |
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| 70 | if ($width > $height) { |
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| 71 | if ($width < $this->maxWidth) { |
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| 72 | $new_width = $width; |
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| 73 | } else { |
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| 74 | $new_width = $this->maxWidth; |
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| 75 | $divisor = $width / $new_width; |
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| 76 | $new_height = floor($height / $divisor); |
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| 77 | } |
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| 78 | } elseif ($height < $this->maxHeight) { |
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| 79 | $new_height = $height; |
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| 80 | } else { |
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| 81 | $new_height = $this->maxHeight; |
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| 82 | $divisor = $height / $new_height; |
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| 83 | $new_width = floor($width / $divisor); |
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| 84 | } |
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| 85 | |||
| 86 | // Create a new temporary image. |
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| 87 | $tmpimg = imagecreatetruecolor($new_width, $new_height); |
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| 88 | imagealphablending($tmpimg, false); |
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| 89 | imagesavealpha($tmpimg, true); |
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| 90 | |||
| 91 | // Copy and resize old image into new image. |
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| 92 | imagecopyresampled($tmpimg, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height); |
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| 93 | |||
| 94 | unlink($this->endFile); |
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| 95 | //compressing the file |
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| 96 | switch ($this->imageMimetype) { |
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| 97 | case 'image/png': |
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| 98 | imagepng($tmpimg, $this->endFile, 0); |
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| 99 | break; |
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| 100 | case 'image/jpeg': |
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| 101 | imagejpeg($tmpimg, $this->endFile, 100); |
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| 102 | break; |
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| 103 | case 'image/gif': |
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| 104 | imagegif($tmpimg, $this->endFile); |
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| 105 | break; |
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| 106 | } |
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| 107 | |||
| 108 | // release the memory |
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| 109 | imagedestroy($tmpimg); |
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| 110 | } else { |
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| 111 | return 'copy'; |
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| 112 | } |
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| 113 | imagedestroy($img); |
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| 114 | |||
| 115 | return true; |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * @return bool|string |
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| 120 | */ |
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| 121 | public function resizeAndCrop() |
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| 122 | { |
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| 123 | // check file extension |
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| 124 | switch ($this->imageMimetype) { |
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| 125 | case 'image/png': |
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| 126 | $original = imagecreatefrompng($this->sourceFile); |
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| 127 | break; |
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| 128 | case 'image/jpeg': |
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| 129 | $original = imagecreatefromjpeg($this->sourceFile); |
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| 130 | break; |
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| 131 | case 'image/gif': |
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| 132 | $original = imagecreatefromgif($this->sourceFile); |
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| 133 | break; |
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| 134 | default: |
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| 135 | return 'Unsupported format'; |
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| 136 | } |
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| 137 | |||
| 138 | if (!$original) { |
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| 139 | return false; |
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| 140 | } |
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| 141 | // GET ORIGINAL IMAGE DIMENSIONS |
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| 142 | list($original_w, $original_h) = getimagesize($this->sourceFile); |
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| 143 | |||
| 144 | // RESIZE IMAGE AND PRESERVE PROPORTIONS |
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| 145 | $max_width_resize = $this->maxWidth; |
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| 146 | $max_height_resize = $this->maxHeight; |
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| 147 | if ($original_w > $original_h) { |
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| 148 | $max_height_ratio = $this->maxHeight / $original_h; |
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| 149 | $max_width_resize = (int)round($original_w * $max_height_ratio); |
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| 150 | } else { |
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| 151 | $max_width_ratio = $this->maxWidth / $original_w; |
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| 152 | $max_height_resize = (int)round($original_h * $max_width_ratio); |
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| 153 | } |
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| 154 | if ($max_width_resize < $this->maxWidth) { |
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| 155 | $max_height_ratio = $this->maxWidth / $max_width_resize; |
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| 156 | $max_height_resize = (int)round($this->maxHeight * $max_height_ratio); |
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| 157 | $max_width_resize = $this->maxWidth; |
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| 158 | } |
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| 159 | |||
| 160 | // CREATE THE PROPORTIONAL IMAGE RESOURCE |
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| 161 | $thumb = imagecreatetruecolor($max_width_resize, $max_height_resize); |
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| 162 | if (!imagecopyresampled($thumb, $original, 0, 0, 0, 0, $max_width_resize, $max_height_resize, $original_w, $original_h)) { |
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| 163 | return false; |
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| 164 | } |
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| 165 | // CREATE THE CENTERED CROPPED IMAGE TO THE SPECIFIED DIMENSIONS |
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| 166 | $final = imagecreatetruecolor($this->maxWidth, $this->maxHeight); |
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| 167 | |||
| 168 | $max_width_offset = 0; |
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| 169 | $max_height_offset = 0; |
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| 170 | if ($this->maxWidth < $max_width_resize) { |
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| 171 | $max_width_offset = (int)round(($max_width_resize - $this->maxWidth) / 2); |
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| 172 | } else { |
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| 173 | $max_height_offset = (int)round(($max_height_resize - $this->maxHeight) / 2); |
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| 174 | } |
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| 175 | |||
| 176 | if (!imagecopy($final, $thumb, 0, 0, $max_width_offset, $max_height_offset, $max_width_resize, $max_height_resize)) { |
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| 177 | return false; |
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| 178 | } |
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| 179 | // STORE THE FINAL IMAGE - WILL OVERWRITE $this->endFile |
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| 180 | if (!imagejpeg($final, $this->endFile, $this->jpgQuality)) { |
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| 181 | return false; |
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| 182 | } |
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| 183 | |||
| 184 | return true; |
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| 185 | } |
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| 186 | |||
| 187 | public function mergeImage() |
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| 243 | } |
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| 244 | |||
| 245 | /** |
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| 246 | * @return bool|string |
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| 247 | */ |
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| 248 | public function rotateImage() |
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| 297 |
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