Total Complexity | 47 |
Total Lines | 371 |
Duplicated Lines | 0 % |
Changes | 10 | ||
Bugs | 1 | Features | 0 |
Complex classes like DBColour 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 DBColour, and based on these observations, apply Extract Interface, too.
1 | <?php |
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15 | class DBColour extends Color |
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16 | { |
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17 | private static $colour_picker_field_class_name = SelectedColourPickerFormFieldDropdown::class; |
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18 | |||
19 | /** |
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20 | * please set |
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21 | * must be defined as #AABB99 (hex codes). |
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22 | * Needs to be set like this: |
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23 | * ```php |
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24 | * [ |
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25 | * '#fff000' => 'My Colour 1', |
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26 | * '#fff000' => 'My Colour 2', |
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27 | * ] |
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28 | * |
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29 | * ``` |
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30 | * |
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31 | * @var array |
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32 | */ |
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33 | private static $colours = []; |
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34 | |||
35 | /** |
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36 | * You can link colours to other colours. |
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37 | * e.g. |
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38 | * ```php |
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39 | * '#ffffff' => [ |
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40 | * 'link' => '#000000', |
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41 | * 'foreground' => '#000000', |
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42 | * 'background' => '#000000', |
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43 | * ], |
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44 | * '#aabbcc' => [ |
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45 | * 'link' => '#123123', |
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46 | * 'foreground' => '#123312', |
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47 | * 'somethingelse' => '#000000', |
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48 | * ], |
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49 | * ``` |
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50 | * |
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51 | * @var array |
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52 | */ |
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53 | |||
54 | private static $linked_colours = [ |
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55 | ]; |
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56 | |||
57 | protected const DEFAULT_COLOURS = [ |
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58 | '#FF0000' => 'Red', |
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59 | '#0000FF' => 'Blue', |
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60 | '#00FF00' => 'Green', |
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61 | ]; |
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62 | |||
63 | /** |
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64 | * please set. |
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65 | * |
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66 | * @var string` |
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67 | */ |
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68 | protected const CSS_CLASS_PREFIX = 'db-colour'; |
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69 | |||
70 | /** |
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71 | * please set. |
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72 | * |
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73 | * @var bool |
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74 | */ |
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75 | protected const IS_LIMITED_TO_OPTIONS = true; |
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76 | |||
77 | /** |
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78 | * please set. |
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79 | * |
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80 | * @var bool |
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81 | */ |
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82 | protected const IS_BG_COLOUR = true; |
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83 | |||
84 | private static $casting = [ |
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85 | // related colours |
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86 | 'ReadableColour' => 'Varchar', |
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87 | 'RelatedColourByName' => 'Varchar', |
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88 | 'Inverted' => 'Varchar', |
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89 | // css |
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90 | 'CssVariableDefinition' => 'HTMLText', |
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91 | 'CssClass' => 'Varchar', |
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92 | 'CssClassAlternative' => 'Boolean', |
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93 | // booleans |
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94 | 'IsDarkColour' => 'Boolean', |
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95 | 'IsLightColour' => 'Boolean', |
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96 | 'Nice' => 'HTMLText', |
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97 | ]; |
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98 | |||
99 | |||
100 | public function __construct($name = null, $options = []) |
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101 | { |
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102 | parent::__construct($name, $options); |
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103 | } |
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104 | |||
105 | |||
106 | public static function my_colours(): array |
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107 | { |
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108 | return static::get_colour_as_db_field('')->getColours(); |
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109 | } |
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110 | |||
111 | public static function get_swatches_field(string $name, string $value): LiteralField |
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112 | { |
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113 | return SelectedColourPickerFormFieldSwatches::get_swatches_field( |
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114 | (string) $name, |
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115 | (string) $value, |
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116 | static::my_colours(), |
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117 | static::IS_BG_COLOUR |
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118 | ); |
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119 | } |
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120 | |||
121 | /** |
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122 | * |
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123 | * @param string $name |
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124 | * @param string $title |
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125 | * @return FormField |
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126 | */ |
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127 | public static function get_dropdown_field(string $name, ?string $title = '', ?bool $isBackgroundColour = null) |
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128 | { |
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129 | if($isBackgroundColour === null) { |
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130 | $isBackgroundColour = static::IS_BG_COLOUR; |
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131 | } |
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132 | $className = Config::inst()->get(static::class, 'colour_picker_field_class_name'); |
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133 | return $className::create( |
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134 | $name, |
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135 | $title |
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136 | ) |
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137 | ->setSource(static::my_colours()) |
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138 | ->setLimitedToOptions(static::IS_LIMITED_TO_OPTIONS) |
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139 | ->setIsBgColour($isBackgroundColour); |
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140 | ; |
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141 | } |
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142 | |||
143 | |||
144 | public static function get_colours_for_dropdown(?bool $isBackgroundColour = null): ?array |
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145 | { |
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146 | if($isBackgroundColour === null) { |
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147 | $isBackgroundColour = static::IS_BG_COLOUR; |
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148 | } |
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149 | $colours = static::my_colours(); |
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150 | if (!empty($colours)) { |
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151 | $array = []; |
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152 | |||
153 | foreach ($colours as $code => $label) { |
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154 | $textcolour = static::get_font_colour((string) $code) ; |
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155 | if($isBackgroundColour) { |
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156 | $array[$code] = [ |
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157 | 'label' => $label, |
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158 | 'background_css' => $code, |
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159 | 'colour_css' => $textcolour, |
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160 | 'sample_text' => 'Aa', |
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161 | ]; |
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162 | |||
163 | } else { |
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164 | $array[$code] = [ |
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165 | 'label' => $label, |
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166 | 'background_css' => $textcolour, |
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167 | 'colour_css' => $code, |
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168 | 'sample_text' => 'Aa', |
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169 | ]; |
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170 | } |
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171 | } |
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172 | |||
173 | return $array; |
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174 | } |
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175 | return null; |
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176 | } |
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177 | |||
178 | |||
179 | /** |
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180 | * Detects if the given colour is light |
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181 | * @param string $colour HEX colour code |
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182 | */ |
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183 | public static function get_font_colour(?string $colour = null, ?string $name = '') |
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184 | { |
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185 | if(! $colour) { |
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186 | $colour = '#ffffff'; |
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187 | } |
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188 | $colour = static::is_light_colour((string) $colour) ? '#000000' : '#ffffff'; |
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189 | return static::get_colour_as_db_field($colour, $name); |
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190 | } |
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191 | |||
192 | /** |
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193 | * @param string $colour HEX colour code |
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194 | */ |
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195 | public static function is_dark_colour(?string $colour = ''): bool |
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196 | { |
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197 | return static::is_light_colour((string) $colour) ? false : true; |
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198 | } |
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199 | |||
200 | /** |
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201 | * Detects if the given colour is light |
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202 | * @param string $colour HEX colour code |
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203 | */ |
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204 | public static function is_light_colour(?string $colour = ''): bool |
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205 | { |
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206 | return static::get_colour_as_db_field($colour) |
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207 | ->Luminance() > 0.5; |
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208 | } |
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209 | |||
210 | |||
211 | public static function check_colour(?string $colour, ?bool $isBackgroundColour = false): string |
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212 | { |
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213 | $colour = strtolower($colour); |
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214 | if($colour === 'transparent') { |
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215 | return 'transparent'; |
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216 | } |
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217 | if(! strpos($colour, '#')) { |
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218 | $colour = '#' . $colour; |
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219 | } |
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220 | if(! $colour) { |
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221 | if($isBackgroundColour) { |
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222 | $colour = '#ffffff'; |
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223 | } else { |
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224 | $colour = '#000000'; |
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225 | } |
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226 | } |
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227 | return $colour; |
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228 | } |
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229 | |||
230 | public function scaffoldFormField($title = null, $params = null) |
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231 | { |
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232 | return ColorPaletteField::create($this->name, $title, static::get_colours_for_dropdown()); |
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233 | } |
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234 | |||
235 | |||
236 | public function getReadableColour(): static |
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237 | { |
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238 | // Remove '#' if it's present |
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239 | return static::get_font_colour((string) $this->value, $this->name); |
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240 | } |
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241 | |||
242 | public function Inverted(): static |
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243 | { |
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244 | // Ensure the colour is 6 characters long |
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245 | $colour = str_pad(ltrim($this->value, "#"), 6, '0', STR_PAD_RIGHT); |
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246 | |||
247 | // Convert the colour to decimal |
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248 | $colour = hexdec($colour); |
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249 | |||
250 | // Invert the colour |
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251 | $colour = 0xFFFFFF - $colour; |
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252 | |||
253 | // Convert the colour back to hex |
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254 | $colour = dechex($colour); |
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255 | |||
256 | // Ensure the colour is 6 characters long |
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257 | $colour = str_pad($colour, 6, '0', STR_PAD_LEFT); |
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258 | |||
259 | return static::get_colour_as_db_field($colour, $this->name); |
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260 | } |
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261 | |||
262 | public function getRelatedColourByName(string $relatedName): static |
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263 | { |
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264 | $relatedColours = $this->getRelatedColours($this->value); |
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265 | $colour = $relatedColours[$relatedName] ?? 'error'; |
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266 | return static::get_colour_as_db_field($colour, $this->name); |
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267 | } |
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268 | |||
269 | |||
270 | public function getCssVariableDefinition($rootElement = ':root'): string |
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271 | { |
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272 | $style = PHP_EOL . '<style>'; |
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273 | $style .= PHP_EOL.$rootElement; |
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274 | $style .= PHP_EOL. '{'; |
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275 | $style .= $this->getCssVarLine(); |
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276 | if(static::IS_BG_COLOUR) { |
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277 | $readableColourObj = $this->getReadableColour(); |
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278 | $style .= $readableColourObj->getCssVarLine('font'); |
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279 | } |
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280 | foreach($this->getRelatedColours() as $name => $relatedColour) { |
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281 | $relatedColourObj = self::get_colour_as_db_field($relatedColour, $this->name); |
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282 | $style .= $relatedColourObj->getCssVarLine($name); |
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283 | $relatedColourObjReadable = $relatedColourObj->getReadableColour(); |
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284 | $style .= $relatedColourObjReadable->getCssVarLine($name.'-font'); |
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285 | } |
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286 | $style .= PHP_EOL . '}'; |
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287 | $style .= PHP_EOL . '</style>'; |
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288 | |||
289 | return $style; |
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290 | } |
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291 | |||
292 | public function getCssVarLine($name = ''): string |
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293 | { |
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294 | $start = ' --colour'; |
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295 | if($name) { |
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296 | $start .= '-' . strtolower($name); |
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297 | } |
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298 | return PHP_EOL. $start.'-' . strtolower($this->getName()) . ': ' . $this->getValue() . ';'; |
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299 | } |
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300 | |||
301 | public function getCssClass(?bool $isTransparent = false): string |
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311 | } |
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312 | |||
313 | |||
314 | public function getCssClassAlternative(?bool $isTransparent = false): string |
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315 | { |
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316 | if($isTransparent) { |
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317 | $name = 'ffffff00'; |
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318 | } else { |
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319 | $name = $this->value ?: 'no-colour'; |
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320 | } |
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321 | return $this->classCleanup($name); |
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322 | } |
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323 | |||
324 | public function getIsLightColour(): bool |
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325 | { |
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326 | return static::is_light_colour($this->value); |
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327 | } |
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328 | |||
329 | public function getNice(): string |
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330 | { |
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331 | return ' |
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332 | <div |
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333 | style=" |
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334 | width: 20px; |
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335 | heigh: 20px; |
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336 | border-radius: 50%; |
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337 | background-color: ' . $this->value . '; |
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338 | color: ; '.self::get_font_colour($this->value).'" |
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339 | >Aa</div> '; |
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340 | } |
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341 | |||
342 | public function getIsDarkColour(): bool |
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345 | } |
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346 | |||
347 | private function classCleanup(string $name): string |
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348 | { |
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349 | $name = str_replace('#', '', $name); |
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350 | $name = preg_replace('#[^A-Za-z0-9]#', '-', $name); |
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351 | |||
352 | return static::CSS_CLASS_PREFIX . '-' . trim(trim(strtolower($name), '-')); |
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353 | } |
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354 | |||
355 | |||
356 | |||
357 | |||
358 | protected function getColours(): array |
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359 | { |
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360 | return $this->Config()->get('colours'); |
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361 | } |
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362 | |||
363 | protected function getMyColours(): array |
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364 | { |
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365 | $colours = $this->getColours(); |
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366 | |||
367 | return empty($colours) ? static::DEFAULT_COLOURS : $colours; |
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368 | } |
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369 | |||
370 | protected function getRelatedColours(): array |
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374 | } |
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375 | |||
376 | |||
377 | protected static $object_cache = []; |
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378 | |||
379 | protected static function get_colour_as_db_field(string $colour, ?string $name = '') |
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380 | { |
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381 | $cacheKey = $colour . '_'. $name . '_'. static::class; |
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382 | if(!$colour || ! isset(static::$object_cache[$cacheKey])) { |
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383 | static::$object_cache[$cacheKey] = DBField::create_field(static::class, $colour, $name); |
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386 | } |
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387 | |||
388 | |||
389 | } |
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390 |