| Total Complexity | 44 |
| Total Lines | 353 |
| Duplicated Lines | 0 % |
| Changes | 7 | ||
| Bugs | 0 | 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 $casting = [ |
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| 85 | // related colours |
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| 86 | 'ReadableColour' => 'Varchar', |
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| 87 | 'RelatedColourByName' => 'Varchar', |
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| 88 | 'Inverted' => 'Varchar', |
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| 89 | // css |
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| 90 | 'CssVariableDefinition' => 'HTMLText', |
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| 91 | 'CssClass' => 'Varchar', |
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| 92 | 'CssClassAlternative' => 'Boolean', |
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| 93 | // booleans |
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| 94 | 'IsDarkColour' => 'Boolean', |
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| 95 | 'IsLightColour' => 'Boolean', |
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| 96 | ]; |
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| 97 | |||
| 98 | |||
| 99 | public function __construct($name = null, $options = []) |
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| 100 | { |
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| 101 | parent::__construct($name, $options); |
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| 102 | } |
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| 103 | |||
| 104 | |||
| 105 | public static function my_colours(): array |
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| 108 | } |
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| 109 | |||
| 110 | public static function get_swatches_field(string $name, string $value): LiteralField |
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| 111 | { |
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| 112 | return SelectedColourPickerFormFieldSwatches::get_swatches_field( |
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| 113 | (string) $name, |
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| 114 | (string) $value, |
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| 115 | static::my_colours(), |
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| 116 | static::IS_BG_COLOUR |
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| 117 | ); |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * |
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| 122 | * @param string $name |
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| 123 | * @param string $title |
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| 124 | * @return FormField |
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| 125 | */ |
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| 126 | public static function get_dropdown_field(string $name, ?string $title = '', ?bool $isBackgroundColour = null) |
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| 127 | { |
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| 128 | if($isBackgroundColour === null) { |
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| 129 | $isBackgroundColour = static::IS_BG_COLOUR; |
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| 130 | } |
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| 131 | $className = Config::inst()->get(static::class, 'colour_picker_field_class_name'); |
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| 132 | return $className::create( |
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| 133 | $name, |
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| 134 | $title |
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| 135 | ) |
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| 136 | ->setSource(static::my_colours()) |
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| 137 | ->setLimitedToOptions(static::IS_LIMITED_TO_OPTIONS) |
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| 138 | ->setIsBgColour($isBackgroundColour); |
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| 139 | ; |
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| 140 | } |
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| 141 | |||
| 142 | |||
| 143 | public static function get_colours_for_dropdown(?bool $isBackgroundColour = null): ?array |
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| 144 | { |
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| 145 | if($isBackgroundColour === null) { |
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| 146 | $isBackgroundColour = static::IS_BG_COLOUR; |
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| 147 | } |
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| 148 | $colours = static::my_colours(); |
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| 149 | if (!empty($colours)) { |
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| 150 | $array = []; |
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| 151 | |||
| 152 | foreach ($colours as $code => $label) { |
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| 153 | $textcolour = static::get_font_colour($code) ; |
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| 154 | if($isBackgroundColour) { |
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| 155 | $array[$code] = [ |
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| 156 | 'label' => $label, |
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| 157 | 'background_css' => $code, |
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| 158 | 'colour_css' => $textcolour, |
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| 159 | 'sample_text' => 'Aa', |
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| 160 | ]; |
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| 161 | |||
| 162 | } else { |
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| 163 | $array[$code] = [ |
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| 164 | 'label' => $label, |
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| 165 | 'background_css' => $textcolour, |
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| 166 | 'colour_css' => $code, |
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| 167 | 'sample_text' => 'Aa', |
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| 168 | ]; |
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| 169 | } |
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| 170 | } |
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| 171 | |||
| 172 | return $array; |
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| 173 | } |
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| 174 | return null; |
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| 175 | } |
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| 176 | |||
| 177 | |||
| 178 | /** |
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| 179 | * Detects if the given colour is light |
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| 180 | * @param string $colour HEX colour code |
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| 181 | */ |
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| 182 | public static function get_font_colour(string $colour, ?string $name = '') |
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| 183 | { |
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| 184 | $colour = static::is_light_colour((string) $colour) ? '#000000' : '#ffffff'; |
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| 185 | return static::get_colour_as_db_field($colour, $name); |
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| 186 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * @param string $colour HEX colour code |
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| 190 | */ |
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| 191 | public static function is_dark_colour(?string $colour = ''): bool |
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| 192 | { |
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| 193 | return static::is_light_colour((string) $colour) ? false : true; |
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| 194 | } |
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| 195 | |||
| 196 | /** |
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| 197 | * Detects if the given colour is light |
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| 198 | * @param string $colour HEX colour code |
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| 199 | */ |
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| 200 | public static function is_light_colour(?string $colour = ''): bool |
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| 201 | { |
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| 202 | return static::get_colour_as_db_field($colour) |
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| 203 | ->Luminance() > 0.5; |
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| 204 | } |
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| 205 | |||
| 206 | |||
| 207 | public static function check_colour(?string $colour, ?bool $isBackgroundColour = false): string |
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| 208 | { |
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| 209 | $colour = strtolower($colour); |
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| 210 | if($colour === 'transparent') { |
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| 211 | return 'transparent'; |
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| 212 | } |
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| 213 | if(! strpos($colour, '#')) { |
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| 214 | $colour = '#' . $colour; |
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| 215 | } |
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| 216 | if(! $colour) { |
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| 217 | if($isBackgroundColour) { |
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| 218 | $colour = '#ffffff'; |
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| 219 | } else { |
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| 220 | $colour = '#000000'; |
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| 221 | } |
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| 222 | } |
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| 223 | return $colour; |
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| 224 | } |
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| 225 | |||
| 226 | public function scaffoldFormField($title = null, $params = null) |
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| 229 | } |
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| 230 | |||
| 231 | |||
| 232 | public function getReadableColour(): static |
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| 233 | { |
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| 234 | // Remove '#' if it's present |
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| 235 | return static::get_font_colour($this->value, $this->name); |
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| 236 | } |
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| 237 | |||
| 238 | public function Inverted(): static |
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| 256 | } |
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| 257 | |||
| 258 | public function getRelatedColourByName(string $relatedName): static |
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| 259 | { |
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| 260 | $relatedColours = $this->getRelatedColours($this->value); |
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| 261 | $colour = $relatedColours[$relatedName] ?? 'error'; |
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| 262 | return static::get_colour_as_db_field($colour, $this->name); |
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| 263 | } |
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| 264 | |||
| 265 | |||
| 266 | public function getCssVariableDefinition($rootElement = ':root'): string |
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| 267 | { |
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| 268 | $style = PHP_EOL . '<style>'; |
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| 269 | $style .= PHP_EOL.$rootElement; |
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| 270 | $style .= PHP_EOL. '{'; |
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| 271 | $style .= $this->getCssVarLine(); |
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| 272 | if(static::IS_BG_COLOUR) { |
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| 273 | $readableColourObj = $this->getReadableColour(); |
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| 274 | $style .= $readableColourObj->getCssVarLine('font'); |
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| 275 | } |
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| 276 | foreach($this->getRelatedColours() as $name => $relatedColour) { |
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| 277 | $relatedColourObj = self::get_colour_as_db_field($relatedColour, $this->name); |
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| 278 | $style .= $relatedColourObj->getCssVarLine($name); |
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| 279 | $relatedColourObjReadable = $relatedColourObj->getReadableColour(); |
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| 280 | $style .= $relatedColourObjReadable->getCssVarLine($name.'-font'); |
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| 281 | } |
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| 282 | $style .= PHP_EOL . '}'; |
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| 283 | $style .= PHP_EOL . '</style>'; |
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| 284 | |||
| 285 | return $style; |
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| 286 | } |
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| 287 | |||
| 288 | public function getCssVarLine($name = ''): string |
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| 289 | { |
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| 290 | $start = ' --colour'; |
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| 291 | if($name) { |
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| 292 | $start .= '-' . strtolower($name); |
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| 293 | } |
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| 294 | return PHP_EOL. $start.'-' . strtolower($this->getName()) . ': ' . $this->getValue() . ';'; |
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| 295 | } |
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| 296 | |||
| 297 | public function getCssClass(?bool $isTransparent = false): string |
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| 307 | } |
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| 308 | |||
| 309 | |||
| 310 | public function getCssClassAlternative(?bool $isTransparent = false): string |
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| 311 | { |
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| 312 | if($isTransparent) { |
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| 313 | $name = 'ffffff00'; |
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| 314 | } else { |
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| 315 | $name = $this->value ?: 'no-colour'; |
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| 316 | } |
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| 317 | return $this->classCleanup($name); |
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| 318 | } |
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| 319 | |||
| 320 | public function getIsLightColour(): bool |
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| 321 | { |
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| 322 | return static::is_light_colour($this->value); |
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| 323 | } |
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| 324 | |||
| 325 | public function getIsDarkColour(): bool |
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| 328 | } |
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| 329 | |||
| 330 | private function classCleanup(string $name): string |
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| 331 | { |
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| 332 | $name = str_replace('#', '', $name); |
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| 333 | $name = preg_replace('#[^A-Za-z0-9]#', '-', $name); |
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| 334 | |||
| 335 | return static::CSS_CLASS_PREFIX . '-' . trim(trim(strtolower($name), '-')); |
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| 336 | } |
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| 337 | |||
| 338 | |||
| 339 | |||
| 340 | |||
| 341 | protected function getColours(): array |
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| 342 | { |
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| 343 | return $this->Config()->get('colours'); |
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| 344 | } |
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| 345 | |||
| 346 | protected function getMyColours(): array |
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| 347 | { |
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| 348 | $colours = $this->getColours(); |
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| 349 | |||
| 350 | return empty($colours) ? static::DEFAULT_COLOURS : $colours; |
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| 351 | } |
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| 352 | |||
| 353 | protected function getRelatedColours(): array |
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| 357 | } |
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| 358 | |||
| 359 | |||
| 360 | protected static $object_cache = []; |
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| 361 | |||
| 362 | protected static function get_colour_as_db_field(string $colour, ?string $name = '') |
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| 368 | } |
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| 369 | |||
| 370 | |||
| 371 | } |
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| 372 |