Total Complexity | 43 |
Total Lines | 337 |
Duplicated Lines | 0 % |
Changes | 5 | ||
Bugs | 0 | Features | 0 |
Complex classes like Picture 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 Picture, and based on these observations, apply Extract Interface, too.
1 | <?php |
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11 | class Picture implements PictureInterface |
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12 | { |
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13 | protected $image = null; |
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14 | |||
15 | protected array $fonts = []; |
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16 | protected array $colors = []; |
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17 | |||
18 | protected ?int $activeColor = null; |
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19 | protected ?string $activeFont = null; |
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20 | |||
21 | |||
22 | /** |
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23 | * Picture constructor. |
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24 | * @param $width |
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25 | * @param $height |
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26 | */ |
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27 | public function __construct($width, $height) |
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28 | { |
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29 | $width = (int) $width; |
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30 | $height = (int) $height; |
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31 | |||
32 | $this->image = imagecreatetruecolor($width, $height); |
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33 | } |
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34 | |||
35 | /** |
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36 | * @param GdImage $image |
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37 | * @return Picture |
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38 | */ |
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39 | public static function create(GdImage $image): Picture |
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40 | { |
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41 | $oSelf = new self(imagesx($image), imagesy($image)); |
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42 | $oSrc = new self(imagesx($image), imagesy($image)); |
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43 | $oSrc->setImage($image); |
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44 | $oSelf->copyResized($oSrc, 0, 0); |
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45 | unset($oSrc); |
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46 | return $oSelf; |
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47 | } |
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48 | |||
49 | /** |
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50 | * |
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51 | */ |
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52 | public function __destruct() |
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53 | { |
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54 | imagedestroy($this->image); |
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55 | } |
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56 | |||
57 | /** |
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58 | * @param $image |
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59 | * @return $this |
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60 | */ |
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61 | public function setImage($image): Picture |
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62 | { |
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63 | $this->image = $image; |
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64 | return $this; |
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65 | } |
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66 | |||
67 | /** |
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68 | * @return int |
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69 | */ |
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70 | public function getWidth(): int |
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71 | { |
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72 | return imagesx($this->image); |
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73 | } |
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74 | |||
75 | /** |
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76 | * @return int |
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77 | */ |
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78 | public function getHeight(): int |
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79 | { |
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80 | return imagesy($this->image); |
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81 | } |
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82 | |||
83 | /** |
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84 | * @return GdImage|null |
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85 | */ |
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86 | public function getImage(): ?GdImage |
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87 | { |
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88 | return $this->image; |
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89 | } |
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90 | |||
91 | /** |
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92 | * @param $name |
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93 | * @return mixed |
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94 | * @throws Exception |
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95 | */ |
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96 | public function getColor($name): mixed |
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97 | { |
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98 | if (!isset($this->colors[$name])) { |
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99 | throw new Exception('Unknown color ' . $name . '.'); |
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100 | } |
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101 | $this->activeColor = $this->colors[$name]; |
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102 | return $this->colors[$name]; |
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103 | } |
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104 | |||
105 | /** |
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106 | * @param $name |
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107 | * @return mixed |
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108 | * @throws Exception |
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109 | */ |
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110 | public function getFont($name): mixed |
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111 | { |
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112 | if (!isset($this->fonts[$name])) { |
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113 | throw new Exception('Unknown font ' . $name . '.'); |
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114 | } |
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115 | $this->activeFont = $this->fonts[$name]; |
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116 | return $this->fonts[$name]; |
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117 | } |
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118 | |||
119 | /** |
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120 | * @param $name |
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121 | * @param $filePath |
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122 | * @return Picture |
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123 | * @throws Exception |
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124 | */ |
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125 | public function addFont($name, $filePath): Picture |
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126 | { |
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127 | $fontPath = realpath($filePath); |
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128 | if ($fontPath === false) { |
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129 | throw new Exception('Unable to load font file. The file does not exists.'); |
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130 | } |
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131 | $this->fonts[$name] = $fontPath; |
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132 | $this->activeFont = $fontPath; |
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133 | return $this; |
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134 | } |
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135 | |||
136 | /** |
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137 | * @param $name |
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138 | * @param $red |
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139 | * @param $green |
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140 | * @param $blue |
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141 | * @param $alpha |
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142 | * @return Picture |
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143 | */ |
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144 | public function addColor($name, $red, $green, $blue, $alpha = null): Picture |
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145 | { |
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146 | $red %= 256; |
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147 | $green %= 256; |
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148 | $blue %= 256; |
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149 | if ($alpha !== null) { |
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150 | $alpha %= 128; |
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151 | $color = imagecolorallocatealpha($this->image, $red, $green, $blue, $alpha); |
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152 | } else { |
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153 | $color = imagecolorallocate($this->image, $red, $green, $blue); |
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154 | } |
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155 | $this->colors[$name] = $color; |
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156 | $this->activeColor = $color; |
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157 | return $this; |
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158 | } |
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159 | |||
160 | /** |
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161 | * @param Picture $pic |
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162 | * @param int $dstX |
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163 | * @param int $dstY |
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164 | * @param int $srcX |
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165 | * @param int $srcY |
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166 | * @param int|null $dstW |
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167 | * @param int|null $dstH |
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168 | * @param int|null $srcW |
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169 | * @param int|null $srcH |
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170 | * @return Picture |
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171 | */ |
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172 | public function copyResized( |
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173 | Picture $pic, |
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174 | int $dstX, |
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175 | int $dstY, |
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176 | int $srcX = 0, |
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177 | int $srcY = 0, |
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178 | int $dstW = null, |
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179 | int $dstH = null, |
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180 | int $srcW = null, |
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181 | int $srcH = null |
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182 | ): Picture { |
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183 | $dstW = is_null($dstW) ? $pic->getWidth() : $dstW; |
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184 | $dstH = is_null($dstH) ? $pic->getHeight() : $dstH; |
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185 | $srcW = is_null($srcW) ? $pic->getWidth() : $srcW; |
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186 | $srcH = is_null($srcH) ? $pic->getHeight() : $srcH; |
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187 | |||
188 | imagecopyresized($this->image, $pic->getImage(), $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH); |
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189 | return $this; |
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190 | } |
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191 | |||
192 | public function scale(int $width, int $height): void |
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193 | { |
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194 | $dstRatio = $width / $height; |
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195 | $srcW = $this->getWidth(); |
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196 | $srcH = $this->getHeight(); |
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197 | $srcRatio = $srcW / $srcH; |
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198 | |||
199 | // Is picture size < dest size do nothing |
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200 | if (($srcW <= $width) && ($srcH <= $height)) { |
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201 | return; |
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202 | } |
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203 | |||
204 | if ($srcRatio === $dstRatio) { |
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205 | $this->image = imagescale($this->image, $width, $height); |
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206 | } elseif ($srcRatio < $dstRatio) { |
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207 | $this->image = imagescale($this->image, (int) ($srcW * ($height / $srcH)), $height); |
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208 | } else { |
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209 | $this->image = imagescale($this->image, $width, (int) ($srcH * ($width / $srcW))); |
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210 | } |
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211 | } |
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212 | |||
213 | /** |
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214 | * @param $xA |
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215 | * @param $yA |
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216 | * @param $xB |
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217 | * @param $yB |
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218 | * @param null $color |
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219 | * @return Picture |
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220 | * @throws Exception |
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221 | */ |
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222 | public function addRectangle($xA, $yA, $xB, $yB, $color = null): Picture |
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223 | { |
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224 | if ($color === null) { |
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225 | $color = $this->activeColor; |
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226 | if ($color === null) { |
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227 | throw new Exception('No active color defined.'); |
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228 | } |
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229 | } |
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230 | imagefilledrectangle($this->image, $xA, $yA, $xB, $yB, $color); |
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231 | return $this; |
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232 | } |
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233 | |||
234 | /** |
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235 | * @param $message |
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236 | * @param $size |
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237 | * @param $x |
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238 | * @param $y |
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239 | * @param int $angle |
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240 | * @param null $color |
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241 | * @param null $font |
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242 | * @return Picture |
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243 | * @throws Exception |
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244 | */ |
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245 | public function write($message, $size, $x, $y, int $angle = 0, $color = null, $font = null): Picture |
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246 | { |
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247 | if ($color === null) { |
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248 | $color = $this->activeColor; |
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249 | if ($color === null) { |
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250 | throw new Exception('No active color defined.'); |
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251 | } |
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252 | } |
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253 | if ($font === null) { |
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254 | $font = $this->activeFont; |
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255 | if ($font === null) { |
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256 | throw new Exception('No active font defined.'); |
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257 | } |
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258 | } |
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259 | imagettftext($this->image, $size, $angle, $x, $y, $color, $font, (string) $message); |
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260 | return $this; |
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261 | } |
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262 | |||
263 | |||
264 | /** |
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265 | * @param $type |
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266 | * @param string $filename |
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267 | * @throws Exception |
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268 | */ |
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269 | public function downloadPicture($type, string $filename): void |
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270 | { |
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271 | header('Content-Disposition: "attachement"; filename="' . $filename . '"'); |
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272 | $this->showPicture($type); |
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273 | } |
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274 | |||
275 | /** |
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276 | * @param $type |
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277 | * @throws Exception |
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278 | */ |
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279 | public function showPicture($type) |
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280 | { |
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281 | $method = self::getGererateMethod($type); |
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282 | $contentType = self::getMimeType($type); |
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283 | |||
284 | header('Content-Type: ' . $contentType); |
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285 | $method($this->image); |
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286 | exit; |
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287 | } |
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288 | |||
289 | |||
290 | public function getStream($type): bool|string |
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291 | { |
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292 | $method = $this->getGererateMethod($type); |
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293 | ob_start(); |
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294 | $method($this->image); |
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295 | return ob_get_clean(); |
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296 | } |
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297 | |||
298 | /** |
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299 | * @param $filename |
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300 | * @return $this |
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301 | * @throws Exception |
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302 | */ |
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303 | public function savePicture($filename): static |
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304 | { |
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305 | $sExtension = pathinfo($filename, PATHINFO_EXTENSION); |
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306 | $method = $this->getGererateMethod($sExtension); |
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307 | |||
308 | $method($this->image, $filename); |
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309 | return $this; |
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310 | } |
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311 | |||
312 | /** |
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313 | * @param $type |
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314 | * @return string |
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315 | * @throws Exception |
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316 | */ |
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317 | protected static function getGererateMethod($type): string |
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323 | } |
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324 | |||
325 | /** |
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326 | * @param $type |
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327 | * @return string |
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328 | * @throws Exception |
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329 | */ |
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330 | public static function getCreateMethod($type): string |
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336 | } |
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337 | |||
338 | /** |
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339 | * @param $extension |
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340 | * @return string |
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341 | */ |
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342 | public static function getMimeType($extension): string |
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348 | } |
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349 | } |
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350 |