| Total Complexity | 334 |
| Total Lines | 1498 |
| Duplicated Lines | 0 % |
| Changes | 5 | ||
| Bugs | 0 | Features | 0 |
Complex classes like phpthumb_filters 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 phpthumb_filters, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 12 | class phpthumb_filters |
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| 13 | { |
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| 14 | /** |
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| 15 | * @var phpthumb |
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| 16 | */ |
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| 17 | |||
| 18 | public $phpThumbObject = null; |
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| 19 | |||
| 20 | public function DebugMessage($message, $file = '', $line = '') |
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| 21 | { |
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| 22 | if (is_object($this->phpThumbObject)) { |
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| 23 | return $this->phpThumbObject->DebugMessage($message, $file, $line); |
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| 24 | } |
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| 25 | return false; |
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| 26 | } |
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| 27 | |||
| 28 | public function ApplyMask(&$gdimg_mask, &$gdimg_image) |
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| 29 | { |
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| 30 | if (phpthumb_functions::gd_version() < 2) { |
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| 31 | $this->DebugMessage('Skipping ApplyMask() because gd_version is "' . phpthumb_functions::gd_version() . '"', __FILE__, __LINE__); |
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| 32 | return false; |
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| 33 | } |
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| 34 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '4.3.2', '>=')) { |
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| 35 | $this->DebugMessage('Using alpha ApplyMask() technique', __FILE__, __LINE__); |
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| 36 | if ($gdimg_mask_resized = phpthumb_functions::ImageCreateFunction(imagesx($gdimg_image), imagesy($gdimg_image))) { |
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| 37 | imagecopyresampled($gdimg_mask_resized, $gdimg_mask, 0, 0, 0, 0, imagesx($gdimg_image), imagesy($gdimg_image), imagesx($gdimg_mask), imagesy($gdimg_mask)); |
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| 38 | if ($gdimg_mask_blendtemp = phpthumb_functions::ImageCreateFunction(imagesx($gdimg_image), imagesy($gdimg_image))) { |
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| 39 | $color_background = imagecolorallocate($gdimg_mask_blendtemp, 0, 0, 0); |
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| 40 | imagefilledrectangle($gdimg_mask_blendtemp, 0, 0, imagesx($gdimg_mask_blendtemp), imagesy($gdimg_mask_blendtemp), $color_background); |
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| 41 | imagealphablending($gdimg_mask_blendtemp, false); |
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| 42 | imagesavealpha($gdimg_mask_blendtemp, true); |
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| 43 | for ($x = 0, $xMax = imagesx($gdimg_image); $x < $xMax; $x++) { |
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| 44 | for ($y = 0, $yMax = imagesy($gdimg_image); $y < $yMax; $y++) { |
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| 45 | //$RealPixel = phpthumb_functions::GetPixelColor($gdimg_mask_blendtemp, $x, $y); |
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| 46 | $RealPixel = phpthumb_functions::GetPixelColor($gdimg_image, $x, $y); |
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| 47 | $MaskPixel = phpthumb_functions::GrayscalePixel(phpthumb_functions::GetPixelColor($gdimg_mask_resized, $x, $y)); |
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| 48 | $MaskAlpha = 127 - (floor($MaskPixel['red'] / 2) * (1 - ($RealPixel['alpha'] / 127))); |
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| 49 | $newcolor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_mask_blendtemp, $RealPixel['red'], $RealPixel['green'], $RealPixel['blue'], $MaskAlpha); |
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| 50 | imagesetpixel($gdimg_mask_blendtemp, $x, $y, $newcolor); |
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| 51 | } |
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| 52 | } |
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| 53 | imagealphablending($gdimg_image, false); |
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| 54 | imagesavealpha($gdimg_image, true); |
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| 55 | imagecopy($gdimg_image, $gdimg_mask_blendtemp, 0, 0, 0, 0, imagesx($gdimg_mask_blendtemp), imagesy($gdimg_mask_blendtemp)); |
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| 56 | imagedestroy($gdimg_mask_blendtemp); |
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| 57 | } else { |
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| 58 | $this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
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| 59 | } |
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| 60 | imagedestroy($gdimg_mask_resized); |
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| 61 | } else { |
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| 62 | $this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
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| 63 | } |
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| 64 | } else { |
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| 65 | // alpha merging requires PHP v4.3.2+ |
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| 66 | $this->DebugMessage('Skipping ApplyMask() technique because PHP is v"' . PHP_VERSION . '"', __FILE__, __LINE__); |
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| 67 | } |
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| 68 | return true; |
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| 69 | } |
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| 70 | |||
| 71 | public function Bevel(&$gdimg, $width, $hexcolor1, $hexcolor2) |
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| 72 | { |
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| 73 | $width = ($width ? $width : 5); |
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| 74 | $hexcolor1 = ($hexcolor1 ? $hexcolor1 : 'FFFFFF'); |
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| 75 | $hexcolor2 = ($hexcolor2 ? $hexcolor2 : '000000'); |
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| 76 | |||
| 77 | imagealphablending($gdimg, true); |
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| 78 | for ($i = 0; $i < $width; $i++) { |
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| 79 | $alpha = round(($i / $width) * 127); |
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| 80 | $color1 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor1, false, $alpha); |
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| 81 | $color2 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor2, false, $alpha); |
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| 82 | |||
| 83 | imageline($gdimg, $i, $i + 1, $i, imagesy($gdimg) - $i - 1, $color1); // left |
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| 84 | imageline($gdimg, $i, $i, imagesx($gdimg) - $i, $i, $color1); // top |
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| 85 | imageline($gdimg, imagesx($gdimg) - $i, imagesy($gdimg) - $i - 1, imagesx($gdimg) - $i, $i + 1, $color2); // right |
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| 86 | imageline($gdimg, imagesx($gdimg) - $i, imagesy($gdimg) - $i, $i, imagesy($gdimg) - $i, $color2); // bottom |
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| 87 | } |
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| 88 | return true; |
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| 89 | } |
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| 90 | |||
| 91 | public function Blur(&$gdimg, $radius = 0.5) |
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| 92 | { |
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| 93 | // Taken from Torstein Hønsi's phpUnsharpMask (see phpthumb.unsharp.php) |
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| 94 | |||
| 95 | $radius = round(max(0, min($radius, 50)) * 2); |
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| 96 | if (!$radius) { |
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| 97 | return false; |
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| 98 | } |
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| 99 | |||
| 100 | $w = imagesx($gdimg); |
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| 101 | $h = imagesy($gdimg); |
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| 102 | if ($imgBlur = imagecreatetruecolor($w, $h)) { |
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| 103 | // Gaussian blur matrix: |
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| 104 | // 1 2 1 |
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| 105 | // 2 4 2 |
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| 106 | // 1 2 1 |
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| 107 | |||
| 108 | // Move copies of the image around one pixel at the time and merge them with weight |
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| 109 | // according to the matrix. The same matrix is simply repeated for higher radii. |
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| 110 | for ($i = 0; $i < $radius; $i++) { |
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| 111 | imagecopy($imgBlur, $gdimg, 0, 0, 1, 1, $w - 1, $h - 1); // up left |
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| 112 | imagecopymerge($imgBlur, $gdimg, 1, 1, 0, 0, $w, $h, 50.00000); // down right |
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| 113 | imagecopymerge($imgBlur, $gdimg, 0, 1, 1, 0, $w - 1, $h, 33.33333); // down left |
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| 114 | imagecopymerge($imgBlur, $gdimg, 1, 0, 0, 1, $w, $h - 1, 25.00000); // up right |
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| 115 | imagecopymerge($imgBlur, $gdimg, 0, 0, 1, 0, $w - 1, $h, 33.33333); // left |
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| 116 | imagecopymerge($imgBlur, $gdimg, 1, 0, 0, 0, $w, $h, 25.00000); // right |
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| 117 | imagecopymerge($imgBlur, $gdimg, 0, 0, 0, 1, $w, $h - 1, 20.00000); // up |
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| 118 | imagecopymerge($imgBlur, $gdimg, 0, 1, 0, 0, $w, $h, 16.666667); // down |
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| 119 | imagecopymerge($imgBlur, $gdimg, 0, 0, 0, 0, $w, $h, 50.000000); // center |
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| 120 | imagecopy($gdimg, $imgBlur, 0, 0, 0, 0, $w, $h); |
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| 121 | } |
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| 122 | return true; |
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| 123 | } |
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| 124 | return false; |
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| 125 | } |
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| 126 | |||
| 127 | public function BlurGaussian(&$gdimg) |
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| 128 | { |
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| 129 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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| 130 | if (imagefilter($gdimg, IMG_FILTER_GAUSSIAN_BLUR)) { |
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| 131 | return true; |
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| 132 | } |
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| 133 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_GAUSSIAN_BLUR)', __FILE__, __LINE__); |
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| 134 | // fall through and try it the hard way |
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| 135 | } |
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| 136 | $this->DebugMessage('FAILED: phpthumb_filters::BlurGaussian($gdimg) [using phpthumb_filters::Blur() instead]', __FILE__, __LINE__); |
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| 137 | return $this->Blur($gdimg, 0.5); |
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| 138 | } |
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| 139 | |||
| 140 | public function BlurSelective(&$gdimg) |
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| 141 | { |
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| 142 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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| 143 | if (imagefilter($gdimg, IMG_FILTER_SELECTIVE_BLUR)) { |
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| 144 | return true; |
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| 145 | } |
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| 146 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_SELECTIVE_BLUR)', __FILE__, __LINE__); |
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| 147 | // fall through and try it the hard way |
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| 148 | } |
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| 149 | // currently not implemented "the hard way" |
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| 150 | $this->DebugMessage('FAILED: phpthumb_filters::BlurSelective($gdimg) [function not implemented]', __FILE__, __LINE__); |
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| 151 | return false; |
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| 152 | } |
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| 153 | |||
| 154 | public function Brightness(&$gdimg, $amount = 0) |
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| 155 | { |
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| 156 | if ($amount == 0) { |
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| 157 | return true; |
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| 158 | } |
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| 159 | $amount = max(-255, min(255, $amount)); |
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| 160 | |||
| 161 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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| 162 | if (imagefilter($gdimg, IMG_FILTER_BRIGHTNESS, $amount)) { |
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| 163 | return true; |
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| 164 | } |
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| 165 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_BRIGHTNESS, ' . $amount . ')', __FILE__, __LINE__); |
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| 166 | // fall through and try it the hard way |
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| 167 | } |
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| 168 | |||
| 169 | $scaling = (255 - abs($amount)) / 255; |
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| 170 | $baseamount = (($amount > 0) ? $amount : 0); |
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| 171 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
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| 172 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
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| 173 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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| 174 | $NewPixel = []; |
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| 175 | foreach ($OriginalPixel as $key => $value) { |
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| 176 | $NewPixel[$key] = round($baseamount + ($OriginalPixel[$key] * $scaling)); |
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| 177 | } |
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| 178 | $newColor = imagecolorallocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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| 179 | imagesetpixel($gdimg, $x, $y, $newColor); |
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| 180 | } |
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| 181 | } |
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| 182 | return true; |
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| 183 | } |
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| 184 | |||
| 185 | public function Contrast(&$gdimg, $amount = 0) |
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| 186 | { |
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| 187 | if ($amount == 0) { |
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| 188 | return true; |
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| 189 | } |
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| 190 | $amount = max(-255, min(255, $amount)); |
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| 191 | |||
| 192 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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| 193 | // imagefilter(IMG_FILTER_CONTRAST) has range +100 to -100 (positive numbers make it darker!) |
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| 194 | $amount = ($amount / 255) * -100; |
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| 195 | if (imagefilter($gdimg, IMG_FILTER_CONTRAST, $amount)) { |
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| 196 | return true; |
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| 197 | } |
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| 198 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_CONTRAST, ' . $amount . ')', __FILE__, __LINE__); |
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| 199 | // fall through and try it the hard way |
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| 200 | } |
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| 201 | |||
| 202 | if ($amount > 0) { |
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| 203 | $scaling = 1 + ($amount / 255); |
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| 204 | } else { |
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| 205 | $scaling = (255 - abs($amount)) / 255; |
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| 206 | } |
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| 207 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
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| 208 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
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| 209 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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| 210 | $NewPixel = []; |
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| 211 | foreach ($OriginalPixel as $key => $value) { |
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| 212 | $NewPixel[$key] = min(255, max(0, round($OriginalPixel[$key] * $scaling))); |
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| 213 | } |
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| 214 | $newColor = imagecolorallocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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| 215 | imagesetpixel($gdimg, $x, $y, $newColor); |
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| 216 | } |
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| 217 | } |
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| 218 | return true; |
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| 219 | } |
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| 220 | |||
| 221 | public function Colorize(&$gdimg, $amount, $targetColor) |
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| 222 | { |
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| 223 | $amount = (is_numeric($amount) ? $amount : 25); |
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| 224 | $amountPct = $amount / 100; |
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| 225 | $targetColor = (phpthumb_functions::IsHexColor($targetColor) ? $targetColor : 'gray'); |
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| 226 | |||
| 227 | if ($amount == 0) { |
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| 228 | return true; |
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| 229 | } |
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| 230 | |||
| 231 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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| 232 | if ($targetColor == 'gray') { |
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| 233 | $targetColor = '808080'; |
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| 234 | } |
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| 235 | $r = round($amountPct * hexdec(substr($targetColor, 0, 2))); |
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| 236 | $g = round($amountPct * hexdec(substr($targetColor, 2, 2))); |
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| 237 | $b = round($amountPct * hexdec(substr($targetColor, 4, 2))); |
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| 238 | if (imagefilter($gdimg, IMG_FILTER_COLORIZE, $r, $g, $b)) { |
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| 239 | return true; |
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| 240 | } |
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| 241 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_COLORIZE)', __FILE__, __LINE__); |
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| 242 | // fall through and try it the hard way |
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| 243 | } |
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| 244 | |||
| 245 | // overridden below for grayscale |
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| 246 | $TargetPixel = []; |
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| 247 | if ($targetColor != 'gray') { |
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| 248 | $TargetPixel['red'] = hexdec(substr($targetColor, 0, 2)); |
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| 249 | $TargetPixel['green'] = hexdec(substr($targetColor, 2, 2)); |
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| 250 | $TargetPixel['blue'] = hexdec(substr($targetColor, 4, 2)); |
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| 251 | } |
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| 252 | |||
| 253 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
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| 254 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
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| 255 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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| 256 | if ($targetColor == 'gray') { |
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| 257 | $TargetPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
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| 258 | } |
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| 259 | $NewPixel = []; |
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| 260 | foreach ($TargetPixel as $key => $value) { |
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| 261 | $NewPixel[$key] = round(max(0, min(255, ($OriginalPixel[$key] * ((100 - $amount) / 100)) + ($TargetPixel[$key] * $amountPct)))); |
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| 262 | } |
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| 263 | //$newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue'], $OriginalPixel['alpha']); |
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| 264 | $newColor = imagecolorallocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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| 265 | imagesetpixel($gdimg, $x, $y, $newColor); |
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| 266 | } |
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| 267 | } |
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| 268 | return true; |
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| 269 | } |
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| 270 | |||
| 271 | public function Crop(&$gdimg, $left = 0, $right = 0, $top = 0, $bottom = 0) |
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| 272 | { |
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| 273 | if (!$left && !$right && !$top && !$bottom) { |
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| 274 | return true; |
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| 275 | } |
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| 276 | $oldW = imagesx($gdimg); |
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| 277 | $oldH = imagesy($gdimg); |
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| 278 | if (($left > 0) && ($left < 1)) { |
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| 279 | $left = round($left * $oldW); |
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| 280 | } |
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| 281 | if (($right > 0) && ($right < 1)) { |
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| 282 | $right = round($right * $oldW); |
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| 283 | } |
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| 284 | if (($top > 0) && ($top < 1)) { |
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| 285 | $top = round($top * $oldH); |
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| 286 | } |
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| 287 | if (($bottom > 0) && ($bottom < 1)) { |
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| 288 | $bottom = round($bottom * $oldH); |
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| 289 | } |
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| 290 | $right = min($oldW - $left - 1, $right); |
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| 291 | $bottom = min($oldH - $top - 1, $bottom); |
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| 292 | $newW = $oldW - $left - $right; |
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| 293 | $newH = $oldH - $top - $bottom; |
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| 294 | |||
| 295 | if ($imgCropped = imagecreatetruecolor($newW, $newH)) { |
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| 296 | imagecopy($imgCropped, $gdimg, 0, 0, $left, $top, $newW, $newH); |
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| 297 | if ($gdimg = imagecreatetruecolor($newW, $newH)) { |
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| 298 | imagecopy($gdimg, $imgCropped, 0, 0, 0, 0, $newW, $newH); |
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| 299 | imagedestroy($imgCropped); |
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| 300 | return true; |
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| 301 | } |
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| 302 | imagedestroy($imgCropped); |
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| 303 | } |
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| 304 | return false; |
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| 305 | } |
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| 306 | |||
| 307 | public function Desaturate(&$gdimg, $amount, $color = '') |
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| 308 | { |
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| 309 | if ($amount == 0) { |
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| 310 | return true; |
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| 311 | } |
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| 312 | return $this->Colorize($gdimg, $amount, (phpthumb_functions::IsHexColor($color) ? $color : 'gray')); |
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| 313 | } |
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| 314 | |||
| 315 | public function DropShadow(&$gdimg, $distance, $width, $hexcolor, $angle, $alpha) |
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| 316 | { |
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| 317 | if (phpthumb_functions::gd_version() < 2) { |
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| 318 | return false; |
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| 319 | } |
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| 320 | $distance = ($distance ? $distance : 10); |
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| 321 | $width = ($width ? $width : 10); |
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| 322 | $hexcolor = ($hexcolor ? $hexcolor : '000000'); |
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| 323 | $angle = ($angle ? $angle : 225) % 360; |
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| 324 | $alpha = max(0, min(100, ($alpha ? $alpha : 100))); |
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| 325 | |||
| 326 | if ($alpha <= 0) { |
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| 327 | // invisible shadow, nothing to do |
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| 328 | return true; |
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| 329 | } |
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| 330 | if ($distance <= 0) { |
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| 331 | // shadow completely obscured by source image, nothing to do |
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| 332 | return true; |
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| 333 | } |
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| 334 | |||
| 335 | //$width_shadow = cos(deg2rad($angle)) * ($distance + $width); |
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| 336 | //$height_shadow = sin(deg2rad($angle)) * ($distance + $width); |
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| 337 | //$scaling = min(imagesx($gdimg) / (imagesx($gdimg) + abs($width_shadow)), imagesy($gdimg) / (imagesy($gdimg) + abs($height_shadow))); |
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| 338 | |||
| 339 | $Offset = []; |
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| 340 | for ($i = 0; $i < $width; $i++) { |
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| 341 | $WidthAlpha[$i] = (abs(($width / 2) - $i) / $width); |
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| 342 | $Offset['x'] = cos(deg2rad($angle)) * ($distance + $i); |
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| 343 | $Offset['y'] = sin(deg2rad($angle)) * ($distance + $i); |
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| 344 | } |
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| 345 | |||
| 346 | $tempImageWidth = imagesx($gdimg) + abs($Offset['x']); |
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| 347 | $tempImageHeight = imagesy($gdimg) + abs($Offset['y']); |
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| 348 | |||
| 349 | if ($gdimg_dropshadow_temp = phpthumb_functions::ImageCreateFunction($tempImageWidth, $tempImageHeight)) { |
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| 350 | imagealphablending($gdimg_dropshadow_temp, false); |
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| 351 | imagesavealpha($gdimg_dropshadow_temp, true); |
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| 352 | $transparent1 = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_dropshadow_temp, 0, 0, 0, 127); |
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| 353 | imagefill($gdimg_dropshadow_temp, 0, 0, $transparent1); |
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| 354 | |||
| 355 | $PixelMap = []; |
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| 356 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
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| 357 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
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| 358 | $PixelMap[$x][$y] = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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| 359 | } |
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| 360 | } |
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| 361 | for ($x = 0; $x < $tempImageWidth; $x++) { |
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| 362 | for ($y = 0; $y < $tempImageHeight; $y++) { |
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| 363 | //for ($i = 0; $i < $width; $i++) { |
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| 364 | for ($i = 0; $i < 1; $i++) { |
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| 365 | if (!isset($PixelMap[$x][$y]['alpha']) || ($PixelMap[$x][$y]['alpha'] > 0)) { |
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| 366 | if (isset($PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha']) && ($PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha'] < 127)) { |
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| 367 | $thisColor = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor, false, $PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha']); |
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| 368 | imagesetpixel($gdimg_dropshadow_temp, $x, $y, $thisColor); |
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| 369 | } |
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| 370 | } |
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| 371 | } |
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| 372 | } |
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| 373 | } |
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| 374 | |||
| 375 | imagealphablending($gdimg_dropshadow_temp, true); |
||
| 376 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
||
| 377 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
||
| 378 | if ($PixelMap[$x][$y]['alpha'] < 127) { |
||
| 379 | $thisColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_dropshadow_temp, $PixelMap[$x][$y]['red'], $PixelMap[$x][$y]['green'], $PixelMap[$x][$y]['blue'], $PixelMap[$x][$y]['alpha']); |
||
| 380 | imagesetpixel($gdimg_dropshadow_temp, $x, $y, $thisColor); |
||
| 381 | } |
||
| 382 | } |
||
| 383 | } |
||
| 384 | |||
| 385 | imagesavealpha($gdimg, true); |
||
| 386 | imagealphablending($gdimg, false); |
||
| 387 | //$this->is_alpha = true; |
||
| 388 | $transparent2 = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 0, 0, 0, 127); |
||
| 389 | imagefilledrectangle($gdimg, 0, 0, imagesx($gdimg), imagesy($gdimg), $transparent2); |
||
| 390 | imagecopyresampled($gdimg, $gdimg_dropshadow_temp, 0, 0, 0, 0, imagesx($gdimg), imagesy($gdimg), imagesx($gdimg_dropshadow_temp), imagesy($gdimg_dropshadow_temp)); |
||
| 391 | |||
| 392 | imagedestroy($gdimg_dropshadow_temp); |
||
| 393 | } |
||
| 394 | return true; |
||
| 395 | } |
||
| 396 | |||
| 397 | public function EdgeDetect(&$gdimg) |
||
| 398 | { |
||
| 399 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 400 | if (imagefilter($gdimg, IMG_FILTER_EDGEDETECT)) { |
||
| 401 | return true; |
||
| 402 | } |
||
| 403 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_EDGEDETECT)', __FILE__, __LINE__); |
||
| 404 | // fall through and try it the hard way |
||
| 405 | } |
||
| 406 | // currently not implemented "the hard way" |
||
| 407 | $this->DebugMessage('FAILED: phpthumb_filters::EdgeDetect($gdimg) [function not implemented]', __FILE__, __LINE__); |
||
| 408 | return false; |
||
| 409 | } |
||
| 410 | |||
| 411 | public function Ellipse($gdimg) |
||
| 412 | { |
||
| 413 | if (phpthumb_functions::gd_version() < 2) { |
||
| 414 | return false; |
||
| 415 | } |
||
| 416 | // generate mask at twice desired resolution and downsample afterwards for easy antialiasing |
||
| 417 | if ($gdimg_ellipsemask_double = phpthumb_functions::ImageCreateFunction(imagesx($gdimg) * 2, imagesy($gdimg) * 2)) { |
||
| 418 | if ($gdimg_ellipsemask = phpthumb_functions::ImageCreateFunction(imagesx($gdimg), imagesy($gdimg))) { |
||
| 419 | $color_transparent = imagecolorallocate($gdimg_ellipsemask_double, 255, 255, 255); |
||
| 420 | imagefilledellipse($gdimg_ellipsemask_double, imagesx($gdimg), imagesy($gdimg), (imagesx($gdimg) - 1) * 2, (imagesy($gdimg) - 1) * 2, $color_transparent); |
||
| 421 | imagecopyresampled($gdimg_ellipsemask, $gdimg_ellipsemask_double, 0, 0, 0, 0, imagesx($gdimg), imagesy($gdimg), imagesx($gdimg) * 2, imagesy($gdimg) * 2); |
||
| 422 | |||
| 423 | $this->ApplyMask($gdimg_ellipsemask, $gdimg); |
||
| 424 | imagedestroy($gdimg_ellipsemask); |
||
| 425 | return true; |
||
| 426 | } else { |
||
| 427 | $this->DebugMessage('$gdimg_ellipsemask = phpthumb_functions::ImageCreateFunction() failed', __FILE__, __LINE__); |
||
| 428 | } |
||
| 429 | imagedestroy($gdimg_ellipsemask_double); |
||
| 430 | } else { |
||
| 431 | $this->DebugMessage('$gdimg_ellipsemask_double = phpthumb_functions::ImageCreateFunction() failed', __FILE__, __LINE__); |
||
| 432 | } |
||
| 433 | return false; |
||
| 434 | } |
||
| 435 | |||
| 436 | public function Emboss(&$gdimg) |
||
| 437 | { |
||
| 438 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 439 | if (imagefilter($gdimg, IMG_FILTER_EMBOSS)) { |
||
| 440 | return true; |
||
| 441 | } |
||
| 442 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_EMBOSS)', __FILE__, __LINE__); |
||
| 443 | // fall through and try it the hard way |
||
| 444 | } |
||
| 445 | // currently not implemented "the hard way" |
||
| 446 | $this->DebugMessage('FAILED: phpthumb_filters::Emboss($gdimg) [function not implemented]', __FILE__, __LINE__); |
||
| 447 | return false; |
||
| 448 | } |
||
| 449 | |||
| 450 | public function Flip(&$gdimg, $x = false, $y = false) |
||
| 451 | { |
||
| 452 | if (!$x && !$y) { |
||
| 453 | return false; |
||
| 454 | } |
||
| 455 | if ($tempImage = phpthumb_functions::ImageCreateFunction(imagesx($gdimg), imagesy($gdimg))) { |
||
| 456 | if ($x) { |
||
| 457 | imagecopy($tempImage, $gdimg, 0, 0, 0, 0, imagesx($gdimg), imagesy($gdimg)); |
||
| 458 | for ($x = 0, $xMax = imagesx($gdimg); $x < $xMax; $x++) { |
||
| 459 | imagecopy($gdimg, $tempImage, imagesx($gdimg) - 1 - $x, 0, $x, 0, 1, imagesy($gdimg)); |
||
| 460 | } |
||
| 461 | } |
||
| 462 | if ($y) { |
||
| 463 | imagecopy($tempImage, $gdimg, 0, 0, 0, 0, imagesx($gdimg), imagesy($gdimg)); |
||
| 464 | for ($y = 0, $yMax = imagesy($gdimg); $y < $yMax; $y++) { |
||
| 465 | imagecopy($gdimg, $tempImage, 0, imagesy($gdimg) - 1 - $y, 0, $y, imagesx($gdimg), 1); |
||
| 466 | } |
||
| 467 | } |
||
| 468 | imagedestroy($tempImage); |
||
| 469 | } |
||
| 470 | return true; |
||
| 471 | } |
||
| 472 | |||
| 473 | public function Frame(&$gdimg, $frame_width, $edge_width, $hexcolor_frame, $hexcolor1, $hexcolor2) |
||
| 474 | { |
||
| 475 | $frame_width = ($frame_width ? $frame_width : 5); |
||
| 476 | $edge_width = ($edge_width ? $edge_width : 1); |
||
| 477 | $hexcolor_frame = ($hexcolor_frame ? $hexcolor_frame : 'CCCCCC'); |
||
| 478 | $hexcolor1 = ($hexcolor1 ? $hexcolor1 : 'FFFFFF'); |
||
| 479 | $hexcolor2 = ($hexcolor2 ? $hexcolor2 : '000000'); |
||
| 480 | |||
| 481 | $color_frame = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor_frame); |
||
| 482 | $color1 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor1); |
||
| 483 | $color2 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor2); |
||
| 484 | for ($i = 0; $i < $edge_width; $i++) { |
||
| 485 | // outer bevel |
||
| 486 | imageline($gdimg, $i, $i, $i, imagesy($gdimg) - $i, $color1); // left |
||
| 487 | imageline($gdimg, $i, $i, imagesx($gdimg) - $i, $i, $color1); // top |
||
| 488 | imageline($gdimg, imagesx($gdimg) - $i, imagesy($gdimg) - $i, imagesx($gdimg) - $i, $i, $color2); // right |
||
| 489 | imageline($gdimg, imagesx($gdimg) - $i, imagesy($gdimg) - $i, $i, imagesy($gdimg) - $i, $color2); // bottom |
||
| 490 | } |
||
| 491 | for ($i = 0; $i < $frame_width; $i++) { |
||
| 492 | // actual frame |
||
| 493 | imagerectangle($gdimg, $edge_width + $i, $edge_width + $i, imagesx($gdimg) - $edge_width - $i, imagesy($gdimg) - $edge_width - $i, $color_frame); |
||
| 494 | } |
||
| 495 | for ($i = 0; $i < $edge_width; $i++) { |
||
| 496 | // inner bevel |
||
| 497 | imageline($gdimg, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, imagesy($gdimg) - $frame_width - $edge_width - $i, $color2); // left |
||
| 498 | imageline($gdimg, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, imagesx($gdimg) - $frame_width - $edge_width - $i, $frame_width + $edge_width + $i, $color2); // top |
||
| 499 | imageline($gdimg, imagesx($gdimg) - $frame_width - $edge_width - $i, imagesy($gdimg) - $frame_width - $edge_width - $i, imagesx($gdimg) - $frame_width - $edge_width - $i, $frame_width + $edge_width + $i, $color1); // right |
||
| 500 | imageline($gdimg, imagesx($gdimg) - $frame_width - $edge_width - $i, imagesy($gdimg) - $frame_width - $edge_width - $i, $frame_width + $edge_width + $i, imagesy($gdimg) - $frame_width - $edge_width - $i, $color1); // bottom |
||
| 501 | } |
||
| 502 | return true; |
||
| 503 | } |
||
| 504 | |||
| 505 | public function Gamma(&$gdimg, $amount) |
||
| 506 | { |
||
| 507 | if (number_format($amount, 4) == '1.0000') { |
||
| 508 | return true; |
||
| 509 | } |
||
| 510 | return imagegammacorrect($gdimg, 1.0, $amount); |
||
| 511 | } |
||
| 512 | |||
| 513 | public function Grayscale(&$gdimg) |
||
| 514 | { |
||
| 515 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 516 | if (imagefilter($gdimg, IMG_FILTER_GRAYSCALE)) { |
||
| 517 | return true; |
||
| 518 | } |
||
| 519 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_GRAYSCALE)', __FILE__, __LINE__); |
||
| 520 | // fall through and try it the hard way |
||
| 521 | } |
||
| 522 | return $this->Colorize($gdimg, 100, 'gray'); |
||
| 523 | } |
||
| 524 | |||
| 525 | public function HistogramAnalysis(&$gdimg, $calculateGray = false) |
||
| 526 | { |
||
| 527 | $ImageSX = imagesx($gdimg); |
||
| 528 | $ImageSY = imagesy($gdimg); |
||
| 529 | $Analysis = []; |
||
| 530 | for ($x = 0; $x < $ImageSX; $x++) { |
||
| 531 | for ($y = 0; $y < $ImageSY; $y++) { |
||
| 532 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
||
| 533 | @$Analysis['red'][$OriginalPixel['red']]++; |
||
| 534 | @$Analysis['green'][$OriginalPixel['green']]++; |
||
| 535 | @$Analysis['blue'][$OriginalPixel['blue']]++; |
||
| 536 | @$Analysis['alpha'][$OriginalPixel['alpha']]++; |
||
| 537 | if ($calculateGray) { |
||
| 538 | $GrayPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
||
| 539 | @$Analysis['gray'][$GrayPixel['red']]++; |
||
| 540 | } |
||
| 541 | } |
||
| 542 | } |
||
| 543 | $keys = ['red', 'green', 'blue', 'alpha']; |
||
| 544 | if ($calculateGray) { |
||
| 545 | $keys[] = 'gray'; |
||
| 546 | } |
||
| 547 | foreach ($keys as $dummy => $key) { |
||
| 548 | ksort($Analysis[$key]); |
||
| 549 | } |
||
| 550 | return $Analysis; |
||
| 551 | } |
||
| 552 | |||
| 553 | public function HistogramStretch(&$gdimg, $band = '*', $method = 0, $threshold = 0.1) |
||
| 554 | { |
||
| 555 | // equivalent of "Auto Contrast" in Adobe Photoshop |
||
| 556 | // method 0 stretches according to RGB colors. Gives a more conservative stretch. |
||
| 557 | // method 1 band stretches according to grayscale which is color-biased (59% green, 30% red, 11% blue). May give a punchier / more aggressive stretch, possibly appearing over-saturated |
||
| 558 | $Analysis = $this->HistogramAnalysis($gdimg, true); |
||
| 559 | $keys = ['r' => 'red', 'g' => 'green', 'b' => 'blue', 'a' => 'alpha', '*' => ($method == 0) ? 'all' : 'gray']; |
||
| 560 | $band = $band[0]; |
||
| 561 | if (!isset($keys[$band])) { |
||
| 562 | return false; |
||
| 563 | } |
||
| 564 | $key = $keys[$band]; |
||
| 565 | |||
| 566 | // If the absolute brightest and darkest pixels are used then one random |
||
| 567 | // pixel in the image could throw off the whole system. Instead, count up/down |
||
| 568 | // from the limit and allow <threshold> (default = 0.1%) of brightest/darkest |
||
| 569 | // pixels to be clipped to min/max |
||
| 570 | $threshold = (float)$threshold / 100; |
||
| 571 | $clip_threshold = imagesx($gdimg) * imagesx($gdimg) * $threshold; |
||
| 572 | |||
| 573 | $countsum = 0; |
||
| 574 | $range_min = 0; |
||
| 575 | for ($i = 0; $i <= 255; $i++) { |
||
| 576 | if ($method == 0) { |
||
| 577 | $countsum = max(@$Analysis['red'][$i], @$Analysis['green'][$i], @$Analysis['blue'][$i]); |
||
| 578 | } else { |
||
| 579 | $countsum += @$Analysis[$key][$i]; |
||
| 580 | } |
||
| 581 | if ($countsum >= $clip_threshold) { |
||
| 582 | $range_min = $i - 1; |
||
| 583 | break; |
||
| 584 | } |
||
| 585 | } |
||
| 586 | $range_min = max($range_min, 0); |
||
| 587 | |||
| 588 | $countsum = 0; |
||
| 589 | $range_max = 255; |
||
| 590 | for ($i = 255; $i >= 0; $i--) { |
||
| 591 | if ($method == 0) { |
||
| 592 | $countsum = max(@$Analysis['red'][$i], @$Analysis['green'][$i], @$Analysis['blue'][$i]); |
||
| 593 | } else { |
||
| 594 | $countsum += @$Analysis[$key][$i]; |
||
| 595 | } |
||
| 596 | if ($countsum >= $clip_threshold) { |
||
| 597 | $range_max = $i + 1; |
||
| 598 | break; |
||
| 599 | } |
||
| 600 | } |
||
| 601 | $range_max = min($range_max, 255); |
||
| 602 | |||
| 603 | $range_scale = (($range_max == $range_min) ? 1 : (255 / ($range_max - $range_min))); |
||
| 604 | if (($range_min == 0) && ($range_max == 255)) { |
||
| 605 | // no adjustment necessary - don't waste CPU time! |
||
| 606 | return true; |
||
| 607 | } |
||
| 608 | |||
| 609 | $ImageSX = imagesx($gdimg); |
||
| 610 | $ImageSY = imagesy($gdimg); |
||
| 611 | for ($x = 0; $x < $ImageSX; $x++) { |
||
| 612 | for ($y = 0; $y < $ImageSY; $y++) { |
||
| 613 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
||
| 614 | if ($band == '*') { |
||
| 615 | $new['red'] = min(255, max(0, ($OriginalPixel['red'] - $range_min) * $range_scale)); |
||
| 616 | $new['green'] = min(255, max(0, ($OriginalPixel['green'] - $range_min) * $range_scale)); |
||
| 617 | $new['blue'] = min(255, max(0, ($OriginalPixel['blue'] - $range_min) * $range_scale)); |
||
| 618 | $new['alpha'] = min(255, max(0, ($OriginalPixel['alpha'] - $range_min) * $range_scale)); |
||
| 619 | } else { |
||
| 620 | $new = $OriginalPixel; |
||
| 621 | $new[$key] = min(255, max(0, ($OriginalPixel[$key] - $range_min) * $range_scale)); |
||
| 622 | } |
||
| 623 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $new['red'], $new['green'], $new['blue'], $new['alpha']); |
||
| 624 | imagesetpixel($gdimg, $x, $y, $newColor); |
||
| 625 | } |
||
| 626 | } |
||
| 627 | |||
| 628 | return true; |
||
| 629 | } |
||
| 630 | |||
| 631 | public function HistogramOverlay(&$gdimg, $bands = '*', $colors = '', $width = 0.25, $height = 0.25, $alignment = 'BR', $opacity = 50, $margin_x = 5, $margin_y = null) |
||
| 632 | { |
||
| 633 | $margin_y = (null === $margin_y ? $margin_x : $margin_y); |
||
| 634 | |||
| 635 | $Analysis = $this->HistogramAnalysis($gdimg, true); |
||
| 636 | $histW = round(($width > 1) ? min($width, imagesx($gdimg)) : imagesx($gdimg) * $width); |
||
| 637 | $histH = round(($width > 1) ? min($width, imagesx($gdimg)) : imagesx($gdimg) * $width); |
||
| 638 | if ($gdHist = imagecreatetruecolor($histW, $histH)) { |
||
| 639 | $color_back = phpthumb_functions::ImageColorAllocateAlphaSafe($gdHist, 0, 0, 0, 127); |
||
| 640 | imagefilledrectangle($gdHist, 0, 0, $histW, $histH, $color_back); |
||
| 641 | imagealphablending($gdHist, false); |
||
| 642 | imagesavealpha($gdHist, true); |
||
| 643 | |||
| 644 | $HistogramTempWidth = 256; |
||
| 645 | $HistogramTempHeight = 100; |
||
| 646 | if ($gdHistTemp = imagecreatetruecolor($HistogramTempWidth, $HistogramTempHeight)) { |
||
| 647 | $color_back_temp = phpthumb_functions::ImageColorAllocateAlphaSafe($gdHistTemp, 255, 0, 255, 127); |
||
| 648 | imagealphablending($gdHistTemp, false); |
||
| 649 | imagesavealpha($gdHistTemp, true); |
||
| 650 | imagefilledrectangle($gdHistTemp, 0, 0, imagesx($gdHistTemp), imagesy($gdHistTemp), $color_back_temp); |
||
| 651 | |||
| 652 | $DefaultColors = ['r' => 'FF0000', 'g' => '00FF00', 'b' => '0000FF', 'a' => '999999', '*' => 'FFFFFF']; |
||
| 653 | $Colors = explode(';', $colors); |
||
| 654 | $BandsToGraph = array_unique(preg_split('##', $bands)); |
||
| 655 | $keys = ['r' => 'red', 'g' => 'green', 'b' => 'blue', 'a' => 'alpha', '*' => 'gray']; |
||
| 656 | foreach ($BandsToGraph as $key => $band) { |
||
| 657 | if (!isset($keys[$band])) { |
||
| 658 | continue; |
||
| 659 | } |
||
| 660 | $PeakValue = max($Analysis[$keys[$band]]); |
||
| 661 | $thisColor = phpthumb_functions::ImageHexColorAllocate($gdHistTemp, phpthumb_functions::IsHexColor(@$Colors[$key]) ? $Colors[$key] : $DefaultColors[$band]); |
||
| 662 | for ($x = 0; $x < $HistogramTempWidth; $x++) { |
||
| 663 | imageline($gdHistTemp, $x, $HistogramTempHeight - 1, $x, $HistogramTempHeight - 1 - round(@$Analysis[$keys[$band]][$x] / $PeakValue * $HistogramTempHeight), $thisColor); |
||
| 664 | } |
||
| 665 | imageline($gdHistTemp, 0, $HistogramTempHeight - 1, $HistogramTempWidth - 1, $HistogramTempHeight - 1, $thisColor); |
||
| 666 | imageline($gdHistTemp, 0, $HistogramTempHeight - 2, $HistogramTempWidth - 1, $HistogramTempHeight - 2, $thisColor); |
||
| 667 | } |
||
| 668 | imagecopyresampled($gdHist, $gdHistTemp, 0, 0, 0, 0, imagesx($gdHist), imagesy($gdHist), imagesx($gdHistTemp), imagesy($gdHistTemp)); |
||
| 669 | imagedestroy($gdHistTemp); |
||
| 670 | } else { |
||
| 671 | return false; |
||
| 672 | } |
||
| 673 | |||
| 674 | $this->WatermarkOverlay($gdimg, $gdHist, $alignment, $opacity, $margin_x, $margin_y); |
||
| 675 | imagedestroy($gdHist); |
||
| 676 | return true; |
||
| 677 | } |
||
| 678 | return false; |
||
| 679 | } |
||
| 680 | |||
| 681 | public function ImageBorder(&$gdimg, $border_width, $radius_x, $radius_y, $hexcolor_border) |
||
| 682 | { |
||
| 683 | $border_width = ($border_width ? $border_width : 1); |
||
| 684 | $radius_x = ($radius_x ? $radius_x : 0); |
||
| 685 | $radius_y = ($radius_y ? $radius_y : 0); |
||
| 686 | |||
| 687 | $output_width = imagesx($gdimg); |
||
| 688 | $output_height = imagesy($gdimg); |
||
| 689 | |||
| 690 | [$new_width, $new_height] = phpthumb_functions::ProportionalResize($output_width, $output_height, $output_width - max($border_width * 2, $radius_x), $output_height - max($border_width * 2, $radius_y)); |
||
| 691 | $offset_x = ($radius_x ? $output_width - $new_width - $radius_x : 0); |
||
| 692 | |||
| 693 | if ($gd_border_canvas = phpthumb_functions::ImageCreateFunction($output_width, $output_height)) { |
||
| 694 | imagesavealpha($gd_border_canvas, true); |
||
| 695 | imagealphablending($gd_border_canvas, false); |
||
| 696 | $color_background = phpthumb_functions::ImageColorAllocateAlphaSafe($gd_border_canvas, 255, 255, 255, 127); |
||
| 697 | imagefilledrectangle($gd_border_canvas, 0, 0, $output_width, $output_height, $color_background); |
||
| 698 | |||
| 699 | $color_border = phpthumb_functions::ImageHexColorAllocate($gd_border_canvas, (phpthumb_functions::IsHexColor($hexcolor_border) ? $hexcolor_border : '000000')); |
||
| 700 | |||
| 701 | for ($i = 0; $i < $border_width; $i++) { |
||
| 702 | imageline($gd_border_canvas, floor($offset_x / 2) + $radius_x, $i, $output_width - $radius_x - ceil($offset_x / 2), $i, $color_border); // top |
||
| 703 | imageline($gd_border_canvas, floor($offset_x / 2) + $radius_x, $output_height - 1 - $i, $output_width - $radius_x - ceil($offset_x / 2), $output_height - 1 - $i, $color_border); // bottom |
||
| 704 | imageline($gd_border_canvas, floor($offset_x / 2) + $i, $radius_y, floor($offset_x / 2) + $i, $output_height - $radius_y, $color_border); // left |
||
| 705 | imageline($gd_border_canvas, $output_width - 1 - $i - ceil($offset_x / 2), $radius_y, $output_width - 1 - $i - ceil($offset_x / 2), $output_height - $radius_y, $color_border); // right |
||
| 706 | } |
||
| 707 | |||
| 708 | if ($radius_x && $radius_y) { |
||
| 709 | // PHP bug: imagearc() with thicknesses > 1 give bad/undesirable/unpredicatable results |
||
| 710 | // Solution: Draw multiple 1px arcs side-by-side. |
||
| 711 | |||
| 712 | // Problem: parallel arcs give strange/ugly antialiasing problems |
||
| 713 | // Solution: draw non-parallel arcs, from one side of the line thickness at the start angle |
||
| 714 | // to the opposite edge of the line thickness at the terminating angle |
||
| 715 | for ($thickness_offset = 0; $thickness_offset < $border_width; $thickness_offset++) { |
||
| 716 | imagearc($gd_border_canvas, floor($offset_x / 2) + 1 + $radius_x, $thickness_offset - 1 + $radius_y, $radius_x * 2, $radius_y * 2, 180, 270, $color_border); // top-left |
||
| 717 | imagearc($gd_border_canvas, $output_width - $radius_x - 1 - ceil($offset_x / 2), $thickness_offset - 1 + $radius_y, $radius_x * 2, $radius_y * 2, 270, 360, $color_border); // top-right |
||
| 718 | imagearc($gd_border_canvas, $output_width - $radius_x - 1 - ceil($offset_x / 2), $output_height - $thickness_offset - $radius_y, $radius_x * 2, $radius_y * 2, 0, 90, $color_border); // bottom-right |
||
| 719 | imagearc($gd_border_canvas, floor($offset_x / 2) + 1 + $radius_x, $output_height - $thickness_offset - $radius_y, $radius_x * 2, $radius_y * 2, 90, 180, $color_border); // bottom-left |
||
| 720 | } |
||
| 721 | if ($border_width > 1) { |
||
| 722 | for ($thickness_offset = 0; $thickness_offset < $border_width; $thickness_offset++) { |
||
| 723 | imagearc($gd_border_canvas, floor($offset_x / 2) + $thickness_offset + $radius_x, $radius_y, $radius_x * 2, $radius_y * 2, 180, 270, $color_border); // top-left |
||
| 724 | imagearc($gd_border_canvas, $output_width - $thickness_offset - $radius_x - 1 - ceil($offset_x / 2), $radius_y, $radius_x * 2, $radius_y * 2, 270, 360, $color_border); // top-right |
||
| 725 | imagearc($gd_border_canvas, $output_width - $thickness_offset - $radius_x - 1 - ceil($offset_x / 2), $output_height - $radius_y, $radius_x * 2, $radius_y * 2, 0, 90, $color_border); // bottom-right |
||
| 726 | imagearc($gd_border_canvas, floor($offset_x / 2) + $thickness_offset + $radius_x, $output_height - $radius_y, $radius_x * 2, $radius_y * 2, 90, 180, $color_border); // bottom-left |
||
| 727 | } |
||
| 728 | } |
||
| 729 | } |
||
| 730 | $this->phpThumbObject->ImageResizeFunction($gd_border_canvas, $gdimg, floor(($output_width - $new_width) / 2), round(($output_height - $new_height) / 2), 0, 0, $new_width, $new_height, $output_width, $output_height); |
||
| 731 | |||
| 732 | imagedestroy($gdimg); |
||
| 733 | $gdimg = phpthumb_functions::ImageCreateFunction($output_width, $output_height); |
||
| 734 | imagesavealpha($gdimg, true); |
||
| 735 | imagealphablending($gdimg, false); |
||
| 736 | $gdimg_color_background = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 255, 255, 255, 127); |
||
| 737 | imagefilledrectangle($gdimg, 0, 0, $output_width, $output_height, $gdimg_color_background); |
||
| 738 | |||
| 739 | imagecopy($gdimg, $gd_border_canvas, 0, 0, 0, 0, $output_width, $output_height); |
||
| 740 | imagedestroy($gd_border_canvas); |
||
| 741 | return true; |
||
| 742 | } else { |
||
| 743 | $this->DebugMessage('FAILED: $gd_border_canvas = phpthumb_functions::ImageCreateFunction(' . $output_width . ', ' . $output_height . ')', __FILE__, __LINE__); |
||
| 744 | } |
||
| 745 | return false; |
||
| 746 | } |
||
| 747 | |||
| 748 | public static function ImprovedImageRotate(&$gdimg_source, $rotate_angle = 0, $config_background_hexcolor = 'FFFFFF', $bg = null, &$phpThumbObject) |
||
| 749 | { |
||
| 750 | while ($rotate_angle < 0) { |
||
| 751 | $rotate_angle += 360; |
||
| 752 | } |
||
| 753 | $rotate_angle %= 360; |
||
| 754 | if ($rotate_angle != 0) { |
||
| 755 | $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_source, $config_background_hexcolor); |
||
| 756 | |||
| 757 | if ((phpthumb_functions::gd_version() >= 2) && !$bg && ($rotate_angle % 90)) { |
||
| 758 | //$this->DebugMessage('Using alpha rotate', __FILE__, __LINE__); |
||
| 759 | if ($gdimg_rotate_mask = phpthumb_functions::ImageCreateFunction(imagesx($gdimg_source), imagesy($gdimg_source))) { |
||
| 760 | $color_mask = []; |
||
| 761 | for ($i = 0; $i <= 255; $i++) { |
||
| 762 | $color_mask[$i] = imagecolorallocate($gdimg_rotate_mask, $i, $i, $i); |
||
| 763 | } |
||
| 764 | imagefilledrectangle($gdimg_rotate_mask, 0, 0, imagesx($gdimg_rotate_mask), imagesy($gdimg_rotate_mask), $color_mask[255]); |
||
| 765 | $imageX = imagesx($gdimg_source); |
||
| 766 | $imageY = imagesy($gdimg_source); |
||
| 767 | for ($x = 0; $x < $imageX; $x++) { |
||
| 768 | for ($y = 0; $y < $imageY; $y++) { |
||
| 769 | $pixelcolor = phpthumb_functions::GetPixelColor($gdimg_source, $x, $y); |
||
| 770 | imagesetpixel($gdimg_rotate_mask, $x, $y, $color_mask[255 - round($pixelcolor['alpha'] * 255 / 127)]); |
||
| 771 | } |
||
| 772 | } |
||
| 773 | $gdimg_rotate_mask = imagerotate($gdimg_rotate_mask, $rotate_angle, $color_mask[0]); |
||
| 774 | $gdimg_source = imagerotate($gdimg_source, $rotate_angle, $background_color); |
||
| 775 | |||
| 776 | imagealphablending($gdimg_source, false); |
||
| 777 | imagesavealpha($gdimg_source, true); |
||
| 778 | //$this->is_alpha = true; |
||
| 779 | $phpThumbFilters = new self(); |
||
| 780 | //$phpThumbFilters->phpThumbObject = $this; |
||
| 781 | $phpThumbFilters->phpThumbObject = $phpThumbObject; |
||
| 782 | $phpThumbFilters->ApplyMask($gdimg_rotate_mask, $gdimg_source); |
||
| 783 | |||
| 784 | imagedestroy($gdimg_rotate_mask); |
||
| 785 | } else { |
||
| 786 | //$this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
||
| 787 | } |
||
| 788 | } else { |
||
| 789 | if (phpthumb_functions::gd_version() < 2) { |
||
| 790 | //$this->DebugMessage('Using non-alpha rotate because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__); |
||
| 791 | } elseif ($bg) { |
||
| 792 | //$this->DebugMessage('Using non-alpha rotate because $this->bg is "'.$bg.'"', __FILE__, __LINE__); |
||
| 793 | } elseif ($rotate_angle % 90) { |
||
| 794 | //$this->DebugMessage('Using non-alpha rotate because ($rotate_angle % 90) = "'.($rotate_angle % 90).'"', __FILE__, __LINE__); |
||
| 795 | } else { |
||
| 796 | //$this->DebugMessage('Using non-alpha rotate because $this->thumbnailFormat is "'.$this->thumbnailFormat.'"', __FILE__, __LINE__); |
||
| 797 | } |
||
| 798 | |||
| 799 | if (imagecolortransparent($gdimg_source) >= 0) { |
||
| 800 | // imagerotate() forgets all about an image's transparency and sets the transparent color to black |
||
| 801 | // To compensate, flood-fill the transparent color of the source image with the specified background color first |
||
| 802 | // then rotate and the colors should match |
||
| 803 | |||
| 804 | if (!function_exists('imageistruecolor') || !imageistruecolor($gdimg_source)) { |
||
| 805 | // convert paletted image to true-color before rotating to prevent nasty aliasing artifacts |
||
| 806 | |||
| 807 | //$this->source_width = imagesx($gdimg_source); |
||
| 808 | //$this->source_height = imagesy($gdimg_source); |
||
| 809 | $gdimg_newsrc = phpthumb_functions::ImageCreateFunction(imagesx($gdimg_source), imagesy($gdimg_source)); |
||
| 810 | $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor); |
||
| 811 | imagefilledrectangle($gdimg_newsrc, 0, 0, imagesx($gdimg_source), imagesy($gdimg_source), phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor)); |
||
| 812 | imagecopy($gdimg_newsrc, $gdimg_source, 0, 0, 0, 0, imagesx($gdimg_source), imagesy($gdimg_source)); |
||
| 813 | imagedestroy($gdimg_source); |
||
| 814 | unset($gdimg_source); |
||
| 815 | $gdimg_source = $gdimg_newsrc; |
||
| 816 | unset($gdimg_newsrc); |
||
| 817 | } else { |
||
| 818 | imagecolorset( |
||
| 819 | $gdimg_source, |
||
| 820 | imagecolortransparent($gdimg_source), |
||
| 821 | hexdec(substr($config_background_hexcolor, 0, 2)), |
||
| 822 | hexdec(substr($config_background_hexcolor, 2, 2)), |
||
| 823 | hexdec(substr($config_background_hexcolor, 4, 2)) |
||
| 824 | ); |
||
| 825 | |||
| 826 | imagecolortransparent($gdimg_source, -1); |
||
| 827 | } |
||
| 828 | } |
||
| 829 | |||
| 830 | $gdimg_source = imagerotate($gdimg_source, $rotate_angle, $background_color); |
||
| 831 | } |
||
| 832 | } |
||
| 833 | return true; |
||
| 834 | } |
||
| 835 | |||
| 836 | public function MeanRemoval(&$gdimg) |
||
| 848 | } |
||
| 849 | |||
| 850 | public function Negative(&$gdimg) |
||
| 851 | { |
||
| 852 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 853 | if (imagefilter($gdimg, IMG_FILTER_NEGATE)) { |
||
| 854 | return true; |
||
| 855 | } |
||
| 856 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_NEGATE)', __FILE__, __LINE__); |
||
| 857 | // fall through and try it the hard way |
||
| 858 | } |
||
| 859 | $ImageSX = imagesx($gdimg); |
||
| 860 | $ImageSY = imagesy($gdimg); |
||
| 861 | for ($x = 0; $x < $ImageSX; $x++) { |
||
| 862 | for ($y = 0; $y < $ImageSY; $y++) { |
||
| 863 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
||
| 864 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, ~$currentPixel['red'] & 0xFF, ~$currentPixel['green'] & 0xFF, ~$currentPixel['blue'] & 0xFF, $currentPixel['alpha']); |
||
| 865 | imagesetpixel($gdimg, $x, $y, $newColor); |
||
| 866 | } |
||
| 867 | } |
||
| 868 | return true; |
||
| 869 | } |
||
| 870 | |||
| 871 | public function RoundedImageCorners(&$gdimg, $radius_x, $radius_y) |
||
| 872 | { |
||
| 873 | // generate mask at twice desired resolution and downsample afterwards for easy antialiasing |
||
| 874 | // mask is generated as a white double-size ellipse on a triple-size black background and copy-paste-resampled |
||
| 875 | // onto a correct-size mask image as 4 corners due to errors when the entire mask is resampled at once (gray edges) |
||
| 876 | if ($gdimg_cornermask_triple = phpthumb_functions::ImageCreateFunction($radius_x * 6, $radius_y * 6)) { |
||
| 877 | if ($gdimg_cornermask = phpthumb_functions::ImageCreateFunction(imagesx($gdimg), imagesy($gdimg))) { |
||
| 878 | $color_transparent = imagecolorallocate($gdimg_cornermask_triple, 255, 255, 255); |
||
| 879 | imagefilledellipse($gdimg_cornermask_triple, $radius_x * 3, $radius_y * 3, $radius_x * 4, $radius_y * 4, $color_transparent); |
||
| 880 | |||
| 881 | imagefilledrectangle($gdimg_cornermask, 0, 0, imagesx($gdimg), imagesy($gdimg), $color_transparent); |
||
| 882 | |||
| 883 | imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, 0, 0, $radius_x, $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
||
| 884 | imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, 0, imagesy($gdimg) - $radius_y, $radius_x, $radius_y * 3, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
||
| 885 | imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, imagesx($gdimg) - $radius_x, imagesy($gdimg) - $radius_y, $radius_x * 3, $radius_y * 3, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
||
| 886 | imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, imagesx($gdimg) - $radius_x, 0, $radius_x * 3, $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
||
| 887 | |||
| 888 | $this->ApplyMask($gdimg_cornermask, $gdimg); |
||
| 889 | imagedestroy($gdimg_cornermask); |
||
| 890 | $this->DebugMessage('RoundedImageCorners(' . $radius_x . ', ' . $radius_y . ') succeeded', __FILE__, __LINE__); |
||
| 891 | return true; |
||
| 892 | } else { |
||
| 893 | $this->DebugMessage('FAILED: $gdimg_cornermask = phpthumb_functions::ImageCreateFunction(' . imagesx($gdimg) . ', ' . imagesy($gdimg) . ')', __FILE__, __LINE__); |
||
| 894 | } |
||
| 895 | imagedestroy($gdimg_cornermask_triple); |
||
| 896 | } else { |
||
| 897 | $this->DebugMessage('FAILED: $gdimg_cornermask_triple = phpthumb_functions::ImageCreateFunction(' . ($radius_x * 6) . ', ' . ($radius_y * 6) . ')', __FILE__, __LINE__); |
||
| 898 | } |
||
| 899 | return false; |
||
| 900 | } |
||
| 901 | |||
| 902 | public function Saturation(&$gdimg, $amount, $color = '') |
||
| 903 | { |
||
| 904 | if ($amount == 0) { |
||
| 905 | return true; |
||
| 906 | } elseif ($amount > 0) { |
||
| 907 | $amount = 0 - $amount; |
||
| 908 | } else { |
||
| 909 | $amount = abs($amount); |
||
| 910 | } |
||
| 911 | return $this->Desaturate($gdimg, $amount, $color); |
||
| 912 | } |
||
| 913 | |||
| 914 | public function Sepia(&$gdimg, $amount, $targetColor) |
||
| 915 | { |
||
| 916 | $amount = (is_numeric($amount) ? max(0, min(100, $amount)) : 50); |
||
| 917 | $amountPct = $amount / 100; |
||
| 918 | $targetColor = (phpthumb_functions::IsHexColor($targetColor) ? $targetColor : 'A28065'); |
||
| 919 | |||
| 920 | if ($amount == 0) { |
||
| 921 | return true; |
||
| 922 | } |
||
| 923 | |||
| 924 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 925 | if (imagefilter($gdimg, IMG_FILTER_GRAYSCALE)) { |
||
| 926 | $r = round($amountPct * hexdec(substr($targetColor, 0, 2))); |
||
| 927 | $g = round($amountPct * hexdec(substr($targetColor, 2, 2))); |
||
| 928 | $b = round($amountPct * hexdec(substr($targetColor, 4, 2))); |
||
| 929 | if (imagefilter($gdimg, IMG_FILTER_COLORIZE, $r, $g, $b)) { |
||
| 930 | return true; |
||
| 931 | } |
||
| 932 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_COLORIZE)', __FILE__, __LINE__); |
||
| 933 | // fall through and try it the hard way |
||
| 934 | |||
| 935 | } else { |
||
| 936 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_GRAYSCALE)', __FILE__, __LINE__); |
||
| 937 | // fall through and try it the hard way |
||
| 938 | |||
| 939 | } |
||
| 940 | } |
||
| 941 | |||
| 942 | $TargetPixel['red'] = hexdec(substr($targetColor, 0, 2)); |
||
| 943 | $TargetPixel['green'] = hexdec(substr($targetColor, 2, 2)); |
||
| 944 | $TargetPixel['blue'] = hexdec(substr($targetColor, 4, 2)); |
||
| 945 | |||
| 946 | $ImageSX = imagesx($gdimg); |
||
| 947 | $ImageSY = imagesy($gdimg); |
||
| 948 | for ($x = 0; $x < $ImageSX; $x++) { |
||
| 949 | for ($y = 0; $y < $ImageSY; $y++) { |
||
| 950 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
||
| 951 | $GrayPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
||
| 952 | |||
| 953 | // http://www.gimpguru.org/Tutorials/SepiaToning/ |
||
| 954 | // "In the traditional sepia toning process, the tinting occurs most in |
||
| 955 | // the mid-tones: the lighter and darker areas appear to be closer to B&W." |
||
| 956 | $SepiaAmount = ((128 - abs($GrayPixel['red'] - 128)) / 128) * $amountPct; |
||
| 957 | |||
| 958 | $NewPixel = []; |
||
| 959 | foreach ($TargetPixel as $key => $value) { |
||
| 960 | $NewPixel[$key] = round(max(0, min(255, $GrayPixel[$key] * (1 - $SepiaAmount) + ($TargetPixel[$key] * $SepiaAmount)))); |
||
| 961 | } |
||
| 962 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue'], $OriginalPixel['alpha']); |
||
| 963 | imagesetpixel($gdimg, $x, $y, $newColor); |
||
| 964 | } |
||
| 965 | } |
||
| 966 | return true; |
||
| 967 | } |
||
| 968 | |||
| 969 | public function Smooth(&$gdimg, $amount = 6) |
||
| 970 | { |
||
| 971 | $amount = min(25, max(0, $amount)); |
||
| 972 | if ($amount == 0) { |
||
| 973 | return true; |
||
| 974 | } |
||
| 975 | if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
||
| 976 | if (imagefilter($gdimg, IMG_FILTER_SMOOTH, $amount)) { |
||
| 977 | return true; |
||
| 978 | } |
||
| 979 | $this->DebugMessage('FAILED: imagefilter($gdimg, IMG_FILTER_SMOOTH, ' . $amount . ')', __FILE__, __LINE__); |
||
| 980 | // fall through and try it the hard way |
||
| 981 | } |
||
| 982 | // currently not implemented "the hard way" |
||
| 983 | $this->DebugMessage('FAILED: phpthumb_filters::Smooth($gdimg, ' . $amount . ') [function not implemented]', __FILE__, __LINE__); |
||
| 984 | return false; |
||
| 985 | } |
||
| 986 | |||
| 987 | public function SourceTransparentColorMask(&$gdimg, $hexcolor, $min_limit = 5, $max_limit = 10) |
||
| 988 | { |
||
| 989 | $width = imagesx($gdimg); |
||
| 990 | $height = imagesy($gdimg); |
||
| 991 | if ($gdimg_mask = imagecreatetruecolor($width, $height)) { |
||
| 992 | $R = hexdec(substr($hexcolor, 0, 2)); |
||
| 993 | $G = hexdec(substr($hexcolor, 2, 2)); |
||
| 994 | $B = hexdec(substr($hexcolor, 4, 2)); |
||
| 995 | $targetPixel = ['red' => $R, 'green' => $G, 'blue' => $B]; |
||
| 996 | $cutoffRange = $max_limit - $min_limit; |
||
| 997 | for ($x = 0; $x < $width; $x++) { |
||
| 998 | for ($y = 0; $y < $height; $y++) { |
||
| 999 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
||
| 1000 | $colorDiff = phpthumb_functions::PixelColorDifferencePercent($currentPixel, $targetPixel); |
||
| 1001 | $grayLevel = min($cutoffRange, max(0, -$min_limit + $colorDiff)) * (255 / max(1, $cutoffRange)); |
||
| 1002 | $newColor = imagecolorallocate($gdimg_mask, $grayLevel, $grayLevel, $grayLevel); |
||
| 1003 | imagesetpixel($gdimg_mask, $x, $y, $newColor); |
||
| 1004 | } |
||
| 1005 | } |
||
| 1006 | return $gdimg_mask; |
||
| 1007 | } |
||
| 1008 | return false; |
||
| 1009 | } |
||
| 1010 | |||
| 1011 | public function Threshold(&$gdimg, $cutoff) |
||
| 1029 | } |
||
| 1030 | |||
| 1031 | public function ImageTrueColorToPalette2(&$image, $dither, $ncolors) |
||
| 1032 | { |
||
| 1033 | // http://www.php.net/manual/en/function.imagetruecolortopalette.php |
||
| 1034 | // zmorris at zsculpt dot com (17-Aug-2004 06:58) |
||
| 1035 | $width = imagesx($image); |
||
| 1036 | $height = imagesy($image); |
||
| 1037 | $image_copy = imagecreatetruecolor($width, $height); |
||
| 1038 | //imagecopymerge($image_copy, $image, 0, 0, 0, 0, $width, $height, 100); |
||
| 1039 | imagecopy($image_copy, $image, 0, 0, 0, 0, $width, $height); |
||
| 1040 | imagetruecolortopalette($image, $dither, $ncolors); |
||
| 1041 | imagecolormatch($image_copy, $image); |
||
| 1042 | imagedestroy($image_copy); |
||
| 1043 | return true; |
||
| 1044 | } |
||
| 1045 | |||
| 1046 | public function ReduceColorDepth(&$gdimg, $colors = 256, $dither = true) |
||
| 1047 | { |
||
| 1048 | $colors = max(min($colors, 256), 2); |
||
| 1049 | // imagetruecolortopalette usually makes ugly colors, the replacement is a bit better |
||
| 1050 | //imagetruecolortopalette($gdimg, $dither, $colors); |
||
| 1051 | $this->ImageTrueColorToPalette2($gdimg, $dither, $colors); |
||
| 1052 | return true; |
||
| 1053 | } |
||
| 1054 | |||
| 1055 | public function WhiteBalance(&$gdimg, $targetColor = '') |
||
| 1090 | } |
||
| 1091 | |||
| 1092 | public function WatermarkText(&$gdimg, $text, $size, $alignment, $hex_color = '000000', $ttffont = '', $opacity = 100, $margin = 5, $angle = 0, $bg_color = false, $bg_opacity = 0, $fillextend = '', $lineheight = 1.0) |
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| 1093 | { |
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| 1094 | // text watermark requested |
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| 1095 | if (!$text) { |
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| 1096 | return false; |
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| 1097 | } |
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| 1098 | imagealphablending($gdimg, true); |
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| 1099 | |||
| 1100 | if (preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)(@[LCR])?$#i', $alignment, $matches)) { |
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| 1101 | $originOffsetX = (int)$matches[1]; |
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| 1102 | $originOffsetY = (int)$matches[2]; |
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| 1393 | } |
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| 1394 | |||
| 1395 | public function WatermarkOverlay(&$gdimg_dest, &$img_watermark, $alignment = '*', $opacity = 50, $margin_x = 5, $margin_y = null) |
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| 1396 | { |
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| 1397 | if ((is_resource($gdimg_dest) || (is_object($gdimg_dest) && $gdimg_dest instanceof \GdImage)) && (is_resource($img_watermark) || (is_object($img_watermark) && $img_watermark instanceof \GdImage))) { |
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| 1510 | } |
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| 1511 | } |
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| 1512 |