Rev 57 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
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| 1 | <?php |
1 | <?php |
| 2 | 2 | ||
| 3 | /* |
3 | /* |
| 4 | * Color Utils for PHP |
4 | * Color Utils for PHP |
| 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
| 6 | * Revision 2023-01-03 |
6 | * Revision 2023-08-29 |
| 7 | * |
7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
10 | * You may obtain a copy of the License at |
| 11 | * |
11 | * |
| Line 103... | Line 103... | ||
| 103 | return '#'.$color; |
103 | return '#'.$color; |
| 104 | } |
104 | } |
| 105 | 105 | ||
| 106 | // TODO: Also support hsl() and hsla() color schemes |
106 | // TODO: Also support hsl() and hsla() color schemes |
| 107 | function changeCSSWithRgbFunction($css_content, $rgb_function) { |
107 | function changeCSSWithRgbFunction($css_content, $rgb_function) { |
| - | 108 | ||
| - | 109 | $i = 0; |
|
| - | 110 | do { |
|
| - | 111 | $i++; |
|
| - | 112 | $dummy = "[$i]"; |
|
| - | 113 | } while (strpos($css_content, $dummy) !== false); |
|
| - | 114 | ||
| 108 | $css_content = preg_replace('@(\\}\\s*)#@ismU', '\\1'.chr(1), $css_content); |
115 | $css_content = preg_replace('@(\\}\\s*)#@ismU', '\\1'.$dummy, $css_content); |
| 109 | $css_content = preg_replace('@(^\\s*)#@isU', '\\1'.chr(1), $css_content); |
116 | $css_content = preg_replace('@(^\\s*)#@isU', '\\1'.$dummy, $css_content); |
| 110 | $css_content = preg_replace_callback('@#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})@ismU', |
117 | $css_content = preg_replace_callback('@#([0-9a-fA-F]{6}|[0-9a-fA-F]{3})@ismU', |
| 111 | function ($x) use ($rgb_function) { |
118 | function ($x) use ($rgb_function) { |
| 112 | if (strlen($x[1]) == 3) { |
119 | if (strlen($x[1]) == 3) { |
| 113 | $r = hexdec($x[1][0].$x[1][0]); |
120 | $r = hexdec($x[1][0].$x[1][0]); |
| 114 | $g = hexdec($x[1][1].$x[1][1]); |
121 | $g = hexdec($x[1][1].$x[1][1]); |
| Line 145... | Line 152... | ||
| 145 | $g = $x[2]; |
152 | $g = $x[2]; |
| 146 | $b = $x[3]; |
153 | $b = $x[3]; |
| 147 | $rgb_function($r,$g,$b); |
154 | $rgb_function($r,$g,$b); |
| 148 | return "-rgb:$r,$g,$b;"; |
155 | return "-rgb:$r,$g,$b;"; |
| 149 | }, $css_content); |
156 | }, $css_content); |
| 150 | $css_content = str_replace(chr(1), '#', $css_content); |
157 | $css_content = str_replace($dummy, '#', $css_content); |
| 151 | return $css_content; |
158 | return $css_content; |
| 152 | } |
159 | } |
| 153 | 160 | ||
| 154 | function changeHueOfCSS($css_content, $h_shift=0, $s_shift=0, $v_shift=0) { |
161 | function changeHueOfCSS($css_content, $h_shift=0, $s_shift=0, $v_shift=0) { |
| 155 | $rgb_function = function(&$r,&$g,&$b) use ($h_shift, $s_shift, $v_shift) { |
162 | $rgb_function = function(&$r,&$g,&$b) use ($h_shift, $s_shift, $v_shift) { |