mambax7 /
chess
| Total Complexity | 48 |
| Total Lines | 320 |
| 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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| 24 | class Resizer |
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| 25 | { |
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| 26 | public $sourceFile = ''; |
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| 27 | public $endFile = ''; |
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| 28 | public $maxWidth = 0; |
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| 29 | public $maxHeight = 0; |
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| 30 | public $imageMimetype = ''; |
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| 31 | public $jpgQuality = 90; |
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| 32 | public $mergeType = 0; |
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| 33 | public $mergePos = 0; |
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| 34 | public $degrees = 0; |
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| 35 | public $error = ''; |
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| 36 | |||
| 37 | /** |
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| 38 | * resize image if size exceed given width/height |
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| 39 | * @return string|bool |
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| 40 | */ |
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| 41 | public function resizeImage() |
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| 42 | { |
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| 43 | // check file extension |
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| 44 | |||
| 45 | switch ($this->imageMimetype) { |
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| 46 | case 'image/png': |
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| 47 | $img = \imagecreatefrompng($this->sourceFile); |
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| 48 | break; |
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| 49 | case 'image/jpeg': |
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| 50 | $img = \imagecreatefromjpeg($this->sourceFile); |
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| 51 | if (!$img) { |
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introduced
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| 52 | $img = \imagecreatefromstring(file_get_contents($this->sourceFile)); |
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| 53 | } |
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| 54 | break; |
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| 55 | case 'image/gif': |
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| 56 | $img = \imagecreatefromgif($this->sourceFile); |
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| 57 | break; |
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| 58 | default: |
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| 59 | return 'Unsupported format'; |
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| 60 | } |
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| 61 | |||
| 62 | $width = \imagesx($img); |
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| 63 | |||
| 64 | $height = \imagesy($img); |
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| 65 | |||
| 66 | if ($width > $this->maxWidth || $height > $this->maxHeight) { |
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| 67 | // recalc image size based on this->maxWidth/this->maxHeight |
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| 68 | |||
| 69 | if ($width > $height) { |
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| 70 | if ($width < $this->maxWidth) { |
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| 71 | $new_width = $width; |
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| 72 | } else { |
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| 73 | $new_width = $this->maxWidth; |
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| 74 | |||
| 75 | $divisor = $width / $new_width; |
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| 76 | |||
| 77 | $new_height = \floor($height / $divisor); |
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| 78 | } |
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| 79 | } elseif ($height < $this->maxHeight) { |
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| 80 | $new_height = $height; |
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| 81 | } else { |
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| 82 | $new_height = $this->maxHeight; |
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| 83 | |||
| 84 | $divisor = $height / $new_height; |
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| 85 | |||
| 86 | $new_width = \floor($width / $divisor); |
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| 87 | } |
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| 88 | |||
| 89 | // Create a new temporary image. |
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| 90 | |||
| 91 | $tmpimg = \imagecreatetruecolor($new_width, $new_height); |
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| 92 | |||
| 93 | imagealphablending($tmpimg, false); |
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| 94 | |||
| 95 | imagesavealpha($tmpimg, true); |
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| 96 | |||
| 97 | // Copy and resize old image into new image. |
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| 98 | |||
| 99 | \imagecopyresampled($tmpimg, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height); |
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| 100 | |||
| 101 | \unlink($this->endFile); |
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| 102 | |||
| 103 | //compressing the file |
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| 104 | |||
| 105 | switch ($this->imageMimetype) { |
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| 106 | case 'image/png': |
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| 107 | \imagepng($tmpimg, $this->endFile, 0); |
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| 108 | break; |
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| 109 | case 'image/jpeg': |
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| 110 | \imagejpeg($tmpimg, $this->endFile, 100); |
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| 111 | break; |
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| 112 | case 'image/gif': |
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| 113 | \imagegif($tmpimg, $this->endFile); |
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| 114 | break; |
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| 115 | } |
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| 116 | |||
| 117 | // release the memory |
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| 118 | |||
| 119 | \imagedestroy($tmpimg); |
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| 120 | } else { |
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| 121 | return 'copy'; |
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| 122 | } |
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| 123 | |||
| 124 | \imagedestroy($img); |
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| 125 | |||
| 126 | return true; |
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| 127 | } |
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| 128 | |||
| 129 | /** |
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| 130 | * @return bool|string |
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| 131 | */ |
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| 132 | public function resizeAndCrop() |
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| 133 | { |
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| 134 | // check file extension |
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| 135 | |||
| 136 | switch ($this->imageMimetype) { |
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| 137 | case 'image/png': |
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| 138 | $original = \imagecreatefrompng($this->sourceFile); |
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| 139 | break; |
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| 140 | case 'image/jpeg': |
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| 141 | $original = \imagecreatefromjpeg($this->sourceFile); |
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| 142 | break; |
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| 143 | case 'image/gif': |
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| 144 | $original = \imagecreatefromgif($this->sourceFile); |
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| 145 | break; |
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| 146 | default: |
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| 147 | return 'Unsupported format'; |
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| 148 | } |
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| 149 | |||
| 150 | if (!$original) { |
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| 151 | return false; |
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| 152 | } |
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| 153 | |||
| 154 | // GET ORIGINAL IMAGE DIMENSIONS |
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| 155 | |||
| 156 | [$original_w, $original_h] = \getimagesize($this->sourceFile); |
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| 157 | |||
| 158 | // RESIZE IMAGE AND PRESERVE PROPORTIONS |
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| 159 | |||
| 160 | $max_width_resize = $this->maxWidth; |
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| 161 | |||
| 162 | $max_height_resize = $this->maxHeight; |
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| 163 | |||
| 164 | if ($original_w > $original_h) { |
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| 165 | $max_height_ratio = $this->maxHeight / $original_h; |
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| 166 | |||
| 167 | $max_width_resize = (int)\round($original_w * $max_height_ratio); |
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| 168 | } else { |
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| 169 | $max_width_ratio = $this->maxWidth / $original_w; |
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| 170 | |||
| 171 | $max_height_resize = (int)\round($original_h * $max_width_ratio); |
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| 172 | } |
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| 173 | |||
| 174 | if ($max_width_resize < $this->maxWidth) { |
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| 175 | $max_height_ratio = $this->maxWidth / $max_width_resize; |
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| 176 | |||
| 177 | $max_height_resize = (int)\round($this->maxHeight * $max_height_ratio); |
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| 178 | |||
| 179 | $max_width_resize = $this->maxWidth; |
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| 180 | } |
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| 181 | |||
| 182 | // CREATE THE PROPORTIONAL IMAGE RESOURCE |
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| 183 | |||
| 184 | $thumb = \imagecreatetruecolor($max_width_resize, $max_height_resize); |
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| 185 | |||
| 186 | if (!\imagecopyresampled($thumb, $original, 0, 0, 0, 0, $max_width_resize, $max_height_resize, $original_w, $original_h)) { |
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| 187 | return false; |
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| 188 | } |
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| 189 | |||
| 190 | // CREATE THE CENTERED CROPPED IMAGE TO THE SPECIFIED DIMENSIONS |
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| 191 | |||
| 192 | $final = \imagecreatetruecolor($this->maxWidth, $this->maxHeight); |
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| 193 | |||
| 194 | $max_width_offset = 0; |
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| 195 | |||
| 196 | $max_height_offset = 0; |
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| 197 | |||
| 198 | if ($this->maxWidth < $max_width_resize) { |
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| 199 | $max_width_offset = (int)\round(($max_width_resize - $this->maxWidth) / 2); |
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| 200 | } else { |
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| 201 | $max_height_offset = (int)\round(($max_height_resize - $this->maxHeight) / 2); |
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| 202 | } |
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| 203 | |||
| 204 | if (!\imagecopy($final, $thumb, 0, 0, $max_width_offset, $max_height_offset, $max_width_resize, $max_height_resize)) { |
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| 205 | return false; |
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| 206 | } |
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| 207 | |||
| 208 | // STORE THE FINAL IMAGE - WILL OVERWRITE $this->endFile |
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| 209 | |||
| 210 | if (!\imagejpeg($final, $this->endFile, $this->jpgQuality)) { |
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| 211 | return false; |
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| 212 | } |
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| 213 | |||
| 214 | return true; |
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| 215 | } |
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| 216 | |||
| 217 | public function mergeImage() |
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| 218 | { |
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| 219 | $dest = \imagecreatefromjpeg($this->endFile); |
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| 220 | |||
| 221 | $src = \imagecreatefromjpeg($this->sourceFile); |
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| 222 | |||
| 223 | if (4 == $this->mergeType) { |
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| 224 | $imgWidth = (int)\round($this->maxWidth / 2 - 1); |
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| 225 | |||
| 226 | $imgHeight = (int)\round($this->maxHeight / 2 - 1); |
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| 227 | |||
| 228 | $posCol2 = (int)\round($this->maxWidth / 2 + 1); |
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| 229 | |||
| 230 | $posRow2 = (int)\round($this->maxHeight / 2 + 1); |
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| 231 | |||
| 232 | switch ($this->mergePos) { |
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| 233 | case 1: |
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| 234 | \imagecopy($dest, $src, 0, 0, 0, 0, $imgWidth, $imgHeight); //top left |
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| 235 | break; |
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| 236 | case 2: |
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| 237 | \imagecopy($dest, $src, $posCol2, 0, 0, 0, $imgWidth, $imgHeight); //top right |
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| 238 | break; |
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| 239 | case 3: |
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| 240 | \imagecopy($dest, $src, 0, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom left |
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| 241 | break; |
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| 242 | case 4: |
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| 243 | \imagecopy($dest, $src, $posCol2, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom right |
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| 244 | break; |
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| 245 | } |
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| 246 | } |
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| 247 | |||
| 248 | if (6 == $this->mergeType) { |
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| 249 | $imgWidth = (int)\round($this->maxWidth / 3 - 1); |
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| 250 | |||
| 251 | $imgHeight = (int)\round($this->maxHeight / 2 - 1); |
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| 252 | |||
| 253 | $posCol2 = (int)\round($this->maxWidth / 3 + 1); |
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| 254 | |||
| 255 | $posCol3 = $posCol2 + (int)\round($this->maxWidth / 3 + 1); |
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| 256 | |||
| 257 | $posRow2 = (int)\round($this->maxHeight / 2 + 1); |
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| 258 | |||
| 259 | switch ($this->mergePos) { |
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| 260 | case 1: |
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| 261 | \imagecopy($dest, $src, 0, 0, 0, 0, $imgWidth, $imgHeight); //top left |
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| 262 | break; |
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| 263 | case 2: |
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| 264 | \imagecopy($dest, $src, $posCol2, 0, 0, 0, $imgWidth, $imgHeight); //top center |
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| 265 | break; |
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| 266 | case 3: |
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| 267 | \imagecopy($dest, $src, $posCol3, 0, 0, 0, $imgWidth, $imgHeight); //top right |
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| 268 | break; |
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| 269 | case 4: |
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| 270 | \imagecopy($dest, $src, 0, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom left |
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| 271 | break; |
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| 272 | case 5: |
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| 273 | \imagecopy($dest, $src, $posCol2, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom center |
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| 274 | break; |
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| 275 | case 6: |
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| 276 | \imagecopy($dest, $src, $posCol3, $posRow2, 0, 0, $imgWidth, $imgHeight); //bottom right |
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| 277 | break; |
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| 278 | } |
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| 279 | } |
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| 280 | |||
| 281 | \imagejpeg($dest, $this->endFile); |
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| 282 | |||
| 283 | \imagedestroy($src); |
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| 284 | |||
| 285 | \imagedestroy($dest); |
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| 286 | } |
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| 287 | |||
| 288 | /** |
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| 289 | * @return bool|string |
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| 290 | */ |
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| 291 | public function rotateImage() |
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| 344 | } |
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| 345 | } |
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| 346 |
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