1 | <?php |
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2 | ////////////////////////////////////////////////////////////// |
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3 | /// phpThumb() by James Heinrich <info@silisoftware.com> // |
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4 | // available at http://phpthumb.sourceforge.net /// |
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5 | ////////////////////////////////////////////////////////////// |
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6 | /// // |
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7 | // phpthumb.filters.php - image processing filter functions // |
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8 | // /// |
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9 | ////////////////////////////////////////////////////////////// |
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10 | |
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11 | class phpthumb_filters { |
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12 | |
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13 | var $phpThumbObject = null; |
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14 | |
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15 | function phpthumb_filters() { |
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16 | return true; |
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17 | } |
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18 | |
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19 | function ApplyMask(&$gdimg_mask, &$gdimg_image) { |
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20 | if (phpthumb_functions::gd_version() < 2) { |
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21 | $this->DebugMessage('Skipping ApplyMask() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__); |
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22 | return false; |
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23 | } |
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24 | if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.2', '>=')) { |
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25 | |
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26 | $this->DebugMessage('Using alpha ApplyMask() technique', __FILE__, __LINE__); |
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27 | if ($gdimg_mask_resized = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_image), ImageSY($gdimg_image))) { |
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28 | |
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29 | ImageCopyResampled($gdimg_mask_resized, $gdimg_mask, 0, 0, 0, 0, ImageSX($gdimg_image), ImageSY($gdimg_image), ImageSX($gdimg_mask), ImageSY($gdimg_mask)); |
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30 | if ($gdimg_mask_blendtemp = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_image), ImageSY($gdimg_image))) { |
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31 | |
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32 | $color_background = ImageColorAllocate($gdimg_mask_blendtemp, 0, 0, 0); |
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33 | ImageFilledRectangle($gdimg_mask_blendtemp, 0, 0, ImageSX($gdimg_mask_blendtemp), ImageSY($gdimg_mask_blendtemp), $color_background); |
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34 | ImageAlphaBlending($gdimg_mask_blendtemp, false); |
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35 | ImageSaveAlpha($gdimg_mask_blendtemp, true); |
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36 | for ($x = 0; $x < ImageSX($gdimg_image); $x++) { |
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37 | for ($y = 0; $y < ImageSY($gdimg_image); $y++) { |
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38 | //$RealPixel = phpthumb_functions::GetPixelColor($gdimg_mask_blendtemp, $x, $y); |
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39 | $RealPixel = phpthumb_functions::GetPixelColor($gdimg_image, $x, $y); |
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40 | $MaskPixel = phpthumb_functions::GrayscalePixel(phpthumb_functions::GetPixelColor($gdimg_mask_resized, $x, $y)); |
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41 | $MaskAlpha = 127 - (floor($MaskPixel['red'] / 2) * (1 - ($RealPixel['alpha'] / 127))); |
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42 | $newcolor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_mask_blendtemp, $RealPixel['red'], $RealPixel['green'], $RealPixel['blue'], $MaskAlpha); |
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43 | ImageSetPixel($gdimg_mask_blendtemp, $x, $y, $newcolor); |
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44 | } |
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45 | } |
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46 | ImageAlphaBlending($gdimg_image, false); |
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47 | ImageSaveAlpha($gdimg_image, true); |
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48 | ImageCopy($gdimg_image, $gdimg_mask_blendtemp, 0, 0, 0, 0, ImageSX($gdimg_mask_blendtemp), ImageSY($gdimg_mask_blendtemp)); |
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49 | ImageDestroy($gdimg_mask_blendtemp); |
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50 | |
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51 | } else { |
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52 | $this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
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53 | } |
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54 | ImageDestroy($gdimg_mask_resized); |
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55 | |
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56 | } else { |
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57 | $this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
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58 | } |
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59 | |
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60 | } else { |
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61 | // alpha merging requires PHP v4.3.2+ |
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62 | $this->DebugMessage('Skipping ApplyMask() technique because PHP is v"'.phpversion().'"', __FILE__, __LINE__); |
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63 | } |
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64 | return true; |
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65 | } |
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66 | |
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67 | |
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68 | function Bevel(&$gdimg, $width, $hexcolor1, $hexcolor2) { |
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69 | $width = ($width ? $width : 5); |
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70 | $hexcolor1 = ($hexcolor1 ? $hexcolor1 : 'FFFFFF'); |
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71 | $hexcolor2 = ($hexcolor2 ? $hexcolor2 : '000000'); |
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72 | |
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73 | ImageAlphaBlending($gdimg, true); |
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74 | for ($i = 0; $i < $width; $i++) { |
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75 | $alpha = round(($i / $width) * 127); |
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76 | $color1 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor1, false, $alpha); |
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77 | $color2 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor2, false, $alpha); |
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78 | |
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79 | ImageLine($gdimg, $i, $i + 1, $i, ImageSY($gdimg) - $i - 1, $color1); // left |
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80 | ImageLine($gdimg, $i, $i , ImageSX($gdimg) - $i, $i , $color1); // top |
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81 | ImageLine($gdimg, ImageSX($gdimg) - $i, ImageSY($gdimg) - $i - 1, ImageSX($gdimg) - $i, $i + 1, $color2); // right |
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82 | ImageLine($gdimg, ImageSX($gdimg) - $i, ImageSY($gdimg) - $i , $i, ImageSY($gdimg) - $i , $color2); // bottom |
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83 | } |
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84 | return true; |
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85 | } |
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86 | |
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87 | |
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88 | function Blur(&$gdimg, $radius=0.5) { |
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89 | // Taken from Torstein Hønsi's phpUnsharpMask (see phpthumb.unsharp.php) |
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90 | |
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91 | $radius = round(max(0, min($radius, 50)) * 2); |
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92 | if (!$radius) { |
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93 | return false; |
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94 | } |
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95 | |
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96 | $w = ImageSX($gdimg); |
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97 | $h = ImageSY($gdimg); |
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98 | if ($imgBlur = ImageCreateTrueColor($w, $h)) { |
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99 | // Gaussian blur matrix: |
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100 | // 1 2 1 |
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101 | // 2 4 2 |
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102 | // 1 2 1 |
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103 | |
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104 | // Move copies of the image around one pixel at the time and merge them with weight |
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105 | // according to the matrix. The same matrix is simply repeated for higher radii. |
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106 | for ($i = 0; $i < $radius; $i++) { |
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107 | ImageCopy ($imgBlur, $gdimg, 0, 0, 1, 1, $w - 1, $h - 1); // up left |
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108 | ImageCopyMerge($imgBlur, $gdimg, 1, 1, 0, 0, $w, $h, 50.00000); // down right |
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109 | ImageCopyMerge($imgBlur, $gdimg, 0, 1, 1, 0, $w - 1, $h, 33.33333); // down left |
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110 | ImageCopyMerge($imgBlur, $gdimg, 1, 0, 0, 1, $w, $h - 1, 25.00000); // up right |
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111 | ImageCopyMerge($imgBlur, $gdimg, 0, 0, 1, 0, $w - 1, $h, 33.33333); // left |
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112 | ImageCopyMerge($imgBlur, $gdimg, 1, 0, 0, 0, $w, $h, 25.00000); // right |
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113 | ImageCopyMerge($imgBlur, $gdimg, 0, 0, 0, 1, $w, $h - 1, 20.00000); // up |
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114 | ImageCopyMerge($imgBlur, $gdimg, 0, 1, 0, 0, $w, $h, 16.666667); // down |
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115 | ImageCopyMerge($imgBlur, $gdimg, 0, 0, 0, 0, $w, $h, 50.000000); // center |
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116 | ImageCopy ($gdimg, $imgBlur, 0, 0, 0, 0, $w, $h); |
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117 | } |
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118 | return true; |
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119 | } |
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120 | return false; |
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121 | } |
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122 | |
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123 | |
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124 | function BlurGaussian(&$gdimg) { |
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125 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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126 | if (ImageFilter($gdimg, IMG_FILTER_GAUSSIAN_BLUR)) { |
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127 | return true; |
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128 | } |
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129 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_GAUSSIAN_BLUR)', __FILE__, __LINE__); |
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130 | // fall through and try it the hard way |
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131 | } |
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132 | $this->DebugMessage('FAILED: phpthumb_filters::BlurGaussian($gdimg) [using phpthumb_filters::Blur() instead]', __FILE__, __LINE__); |
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133 | return phpthumb_filters::Blur($gdimg, 0.5); |
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134 | } |
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135 | |
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136 | |
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137 | function BlurSelective(&$gdimg) { |
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138 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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139 | if (ImageFilter($gdimg, IMG_FILTER_SELECTIVE_BLUR)) { |
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140 | return true; |
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141 | } |
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142 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_SELECTIVE_BLUR)', __FILE__, __LINE__); |
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143 | // fall through and try it the hard way |
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144 | } |
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145 | // currently not implemented "the hard way" |
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146 | $this->DebugMessage('FAILED: phpthumb_filters::BlurSelective($gdimg) [function not implemented]', __FILE__, __LINE__); |
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147 | return false; |
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148 | } |
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149 | |
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150 | |
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151 | function Brightness(&$gdimg, $amount=0) { |
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152 | if ($amount == 0) { |
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153 | return true; |
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154 | } |
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155 | $amount = max(-255, min(255, $amount)); |
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156 | |
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157 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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158 | if (ImageFilter($gdimg, IMG_FILTER_BRIGHTNESS, $amount)) { |
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159 | return true; |
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160 | } |
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161 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_BRIGHTNESS, '.$amount.')', __FILE__, __LINE__); |
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162 | // fall through and try it the hard way |
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163 | } |
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164 | |
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165 | $scaling = (255 - abs($amount)) / 255; |
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166 | $baseamount = (($amount > 0) ? $amount : 0); |
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167 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
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168 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
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169 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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170 | foreach ($OriginalPixel as $key => $value) { |
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171 | $NewPixel[$key] = round($baseamount + ($OriginalPixel[$key] * $scaling)); |
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172 | } |
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173 | $newColor = ImageColorAllocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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174 | ImageSetPixel($gdimg, $x, $y, $newColor); |
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175 | } |
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176 | } |
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177 | return true; |
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178 | } |
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179 | |
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180 | |
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181 | function Contrast(&$gdimg, $amount=0) { |
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182 | if ($amount == 0) { |
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183 | return true; |
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184 | } |
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185 | $amount = max(-255, min(255, $amount)); |
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186 | |
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187 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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188 | // ImageFilter(IMG_FILTER_CONTRAST) has range +100 to -100 (positive numbers make it darker!) |
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189 | $amount = ($amount / 255) * -100; |
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190 | if (ImageFilter($gdimg, IMG_FILTER_CONTRAST, $amount)) { |
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191 | return true; |
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192 | } |
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193 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_CONTRAST, '.$amount.')', __FILE__, __LINE__); |
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194 | // fall through and try it the hard way |
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195 | } |
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196 | |
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197 | if ($amount > 0) { |
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198 | $scaling = 1 + ($amount / 255); |
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199 | } else { |
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200 | $scaling = (255 - abs($amount)) / 255; |
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201 | } |
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202 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
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203 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
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204 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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205 | foreach ($OriginalPixel as $key => $value) { |
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206 | $NewPixel[$key] = min(255, max(0, round($OriginalPixel[$key] * $scaling))); |
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207 | } |
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208 | $newColor = ImageColorAllocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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209 | ImageSetPixel($gdimg, $x, $y, $newColor); |
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210 | } |
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211 | } |
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212 | } |
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213 | |
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214 | |
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215 | function Colorize(&$gdimg, $amount, $targetColor) { |
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216 | $amount = (is_numeric($amount) ? $amount : 25); |
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217 | $amountPct = $amount / 100; |
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218 | $targetColor = (phpthumb_functions::IsHexColor($targetColor) ? $targetColor : 'gray'); |
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219 | |
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220 | if ($amount == 0) { |
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221 | return true; |
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222 | } |
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223 | |
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224 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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225 | if ($targetColor == 'gray') { |
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226 | $targetColor = '808080'; |
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227 | } |
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228 | $r = round($amountPct * hexdec(substr($targetColor, 0, 2))); |
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229 | $g = round($amountPct * hexdec(substr($targetColor, 2, 2))); |
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230 | $b = round($amountPct * hexdec(substr($targetColor, 4, 2))); |
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231 | if (ImageFilter($gdimg, IMG_FILTER_COLORIZE, $r, $g, $b)) { |
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232 | return true; |
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233 | } |
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234 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_COLORIZE)', __FILE__, __LINE__); |
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235 | // fall through and try it the hard way |
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236 | } |
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237 | |
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238 | // overridden below for grayscale |
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239 | if ($targetColor != 'gray') { |
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240 | $TargetPixel['red'] = hexdec(substr($targetColor, 0, 2)); |
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241 | $TargetPixel['green'] = hexdec(substr($targetColor, 2, 2)); |
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242 | $TargetPixel['blue'] = hexdec(substr($targetColor, 4, 2)); |
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243 | } |
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244 | |
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245 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
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246 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
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247 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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248 | if ($targetColor == 'gray') { |
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249 | $TargetPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
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250 | } |
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251 | foreach ($TargetPixel as $key => $value) { |
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252 | $NewPixel[$key] = round(max(0, min(255, ($OriginalPixel[$key] * ((100 - $amount) / 100)) + ($TargetPixel[$key] * $amountPct)))); |
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253 | } |
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254 | //$newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue'], $OriginalPixel['alpha']); |
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255 | $newColor = ImageColorAllocate($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue']); |
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256 | ImageSetPixel($gdimg, $x, $y, $newColor); |
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257 | } |
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258 | } |
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259 | return true; |
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260 | } |
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261 | |
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262 | |
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263 | function Crop(&$gdimg, $left=0, $right=0, $top=0, $bottom=0) { |
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264 | if (!$left && !$right && !$top && !$bottom) { |
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265 | return true; |
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266 | } |
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267 | $oldW = ImageSX($gdimg); |
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268 | $oldH = ImageSY($gdimg); |
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269 | if (($left > 0) && ($left < 1)) { $left = round($left * $oldW); } |
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270 | if (($right > 0) && ($right < 1)) { $right = round($right * $oldW); } |
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271 | if (($top > 0) && ($top < 1)) { $top = round($top * $oldH); } |
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272 | if (($bottom > 0) && ($bottom < 1)) { $bottom = round($bottom * $oldH); } |
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273 | $right = min($oldW - $left - 1, $right); |
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274 | $bottom = min($oldH - $top - 1, $bottom); |
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275 | $newW = $oldW - $left - $right; |
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276 | $newH = $oldH - $top - $bottom; |
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277 | |
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278 | if ($imgCropped = ImageCreateTrueColor($newW, $newH)) { |
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279 | ImageCopy($imgCropped, $gdimg, 0, 0, $left, $top, $newW, $newH); |
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280 | if ($gdimg = ImageCreateTrueColor($newW, $newH)) { |
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281 | ImageCopy($gdimg, $imgCropped, 0, 0, 0, 0, $newW, $newH); |
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282 | ImageDestroy($imgCropped); |
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283 | return true; |
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284 | } |
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285 | ImageDestroy($imgCropped); |
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286 | } |
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287 | return false; |
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288 | } |
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289 | |
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290 | |
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291 | function Desaturate(&$gdimg, $amount, $color='') { |
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292 | if ($amount == 0) { |
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293 | return true; |
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294 | } |
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295 | return phpthumb_filters::Colorize($gdimg, $amount, (phpthumb_functions::IsHexColor($color) ? $color : 'gray')); |
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296 | } |
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297 | |
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298 | |
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299 | function DropShadow(&$gdimg, $distance, $width, $hexcolor, $angle, $alpha) { |
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300 | if (phpthumb_functions::gd_version() < 2) { |
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301 | return false; |
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302 | } |
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303 | $distance = ($distance ? $distance : 10); |
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304 | $width = ($width ? $width : 10); |
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305 | $hexcolor = ($hexcolor ? $hexcolor : '000000'); |
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306 | $angle = ($angle ? $angle : 225) % 360; |
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307 | $alpha = max(0, min(100, ($alpha ? $alpha : 100))); |
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308 | |
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309 | if ($alpha <= 0) { |
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310 | // invisible shadow, nothing to do |
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311 | return true; |
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312 | } |
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313 | if ($distance <= 0) { |
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314 | // shadow completely obscured by source image, nothing to do |
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315 | return true; |
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316 | } |
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317 | |
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318 | $width_shadow = cos(deg2rad($angle)) * ($distance + $width); |
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319 | $height_shadow = sin(deg2rad($angle)) * ($distance + $width); |
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320 | |
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321 | $scaling = min(ImageSX($gdimg) / (ImageSX($gdimg) + abs($width_shadow)), ImageSY($gdimg) / (ImageSY($gdimg) + abs($height_shadow))); |
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322 | |
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323 | for ($i = 0; $i < $width; $i++) { |
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324 | $WidthAlpha[$i] = (abs(($width / 2) - $i) / $width); |
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325 | $Offset['x'] = cos(deg2rad($angle)) * ($distance + $i); |
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326 | $Offset['y'] = sin(deg2rad($angle)) * ($distance + $i); |
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327 | } |
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328 | |
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329 | $tempImageWidth = ImageSX($gdimg) + abs($Offset['x']); |
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330 | $tempImageHeight = ImageSY($gdimg) + abs($Offset['y']); |
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331 | |
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332 | if ($gdimg_dropshadow_temp = phpthumb_functions::ImageCreateFunction($tempImageWidth, $tempImageHeight)) { |
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333 | |
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334 | ImageAlphaBlending($gdimg_dropshadow_temp, false); |
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335 | ImageSaveAlpha($gdimg_dropshadow_temp, true); |
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336 | $transparent1 = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_dropshadow_temp, 0, 0, 0, 127); |
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337 | ImageFill($gdimg_dropshadow_temp, 0, 0, $transparent1); |
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338 | |
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339 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
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340 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
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341 | $PixelMap[$x][$y] = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
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342 | } |
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343 | } |
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344 | for ($x = 0; $x < $tempImageWidth; $x++) { |
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345 | for ($y = 0; $y < $tempImageHeight; $y++) { |
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346 | //for ($i = 0; $i < $width; $i++) { |
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347 | for ($i = 0; $i < 1; $i++) { |
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348 | if (!isset($PixelMap[$x][$y]['alpha']) || ($PixelMap[$x][$y]['alpha'] > 0)) { |
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349 | if (isset($PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha']) && ($PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha'] < 127)) { |
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350 | $thisColor = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor, false, $PixelMap[$x + $Offset['x']][$y + $Offset['y']]['alpha']); |
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351 | ImageSetPixel($gdimg_dropshadow_temp, $x, $y, $thisColor); |
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352 | } |
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353 | } |
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354 | } |
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355 | } |
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356 | } |
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357 | |
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358 | ImageAlphaBlending($gdimg_dropshadow_temp, true); |
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359 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
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360 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
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361 | if ($PixelMap[$x][$y]['alpha'] < 127) { |
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362 | $thisColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_dropshadow_temp, $PixelMap[$x][$y]['red'], $PixelMap[$x][$y]['green'], $PixelMap[$x][$y]['blue'], $PixelMap[$x][$y]['alpha']); |
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363 | ImageSetPixel($gdimg_dropshadow_temp, $x, $y, $thisColor); |
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364 | } |
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365 | } |
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366 | } |
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367 | |
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368 | ImageSaveAlpha($gdimg, true); |
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369 | ImageAlphaBlending($gdimg, false); |
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370 | //$this->is_alpha = true; |
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371 | $transparent2 = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 0, 0, 0, 127); |
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372 | ImageFilledRectangle($gdimg, 0, 0, ImageSX($gdimg), ImageSY($gdimg), $transparent2); |
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373 | ImageCopyResampled($gdimg, $gdimg_dropshadow_temp, 0, 0, 0, 0, ImageSX($gdimg), ImageSY($gdimg), ImageSX($gdimg_dropshadow_temp), ImageSY($gdimg_dropshadow_temp)); |
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374 | |
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375 | ImageDestroy($gdimg_dropshadow_temp); |
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376 | } |
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377 | return true; |
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378 | } |
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379 | |
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380 | |
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381 | function EdgeDetect(&$gdimg) { |
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382 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
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383 | if (ImageFilter($gdimg, IMG_FILTER_EDGEDETECT)) { |
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384 | return true; |
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385 | } |
---|
386 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_EDGEDETECT)', __FILE__, __LINE__); |
---|
387 | // fall through and try it the hard way |
---|
388 | } |
---|
389 | // currently not implemented "the hard way" |
---|
390 | $this->DebugMessage('FAILED: phpthumb_filters::EdgeDetect($gdimg) [function not implemented]', __FILE__, __LINE__); |
---|
391 | return false; |
---|
392 | } |
---|
393 | |
---|
394 | |
---|
395 | function Elipse($gdimg) { |
---|
396 | if (phpthumb_functions::gd_version() < 2) { |
---|
397 | return false; |
---|
398 | } |
---|
399 | // generate mask at twice desired resolution and downsample afterwards for easy antialiasing |
---|
400 | if ($gdimg_elipsemask_double = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg) * 2, ImageSY($gdimg) * 2)) { |
---|
401 | if ($gdimg_elipsemask = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg), ImageSY($gdimg))) { |
---|
402 | |
---|
403 | $color_transparent = ImageColorAllocate($gdimg_elipsemask_double, 255, 255, 255); |
---|
404 | ImageFilledEllipse($gdimg_elipsemask_double, ImageSX($gdimg), ImageSY($gdimg), (ImageSX($gdimg) - 1) * 2, (ImageSY($gdimg) - 1) * 2, $color_transparent); |
---|
405 | ImageCopyResampled($gdimg_elipsemask, $gdimg_elipsemask_double, 0, 0, 0, 0, ImageSX($gdimg), ImageSY($gdimg), ImageSX($gdimg) * 2, ImageSY($gdimg) * 2); |
---|
406 | |
---|
407 | phpthumb_filters::ApplyMask($gdimg_elipsemask, $gdimg); |
---|
408 | ImageDestroy($gdimg_elipsemask); |
---|
409 | return true; |
---|
410 | |
---|
411 | } else { |
---|
412 | $this->DebugMessage('$gdimg_elipsemask = phpthumb_functions::ImageCreateFunction() failed', __FILE__, __LINE__); |
---|
413 | } |
---|
414 | ImageDestroy($gdimg_elipsemask_double); |
---|
415 | } else { |
---|
416 | $this->DebugMessage('$gdimg_elipsemask_double = phpthumb_functions::ImageCreateFunction() failed', __FILE__, __LINE__); |
---|
417 | } |
---|
418 | return false; |
---|
419 | } |
---|
420 | |
---|
421 | |
---|
422 | function Emboss(&$gdimg) { |
---|
423 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
424 | if (ImageFilter($gdimg, IMG_FILTER_EMBOSS)) { |
---|
425 | return true; |
---|
426 | } |
---|
427 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_EMBOSS)', __FILE__, __LINE__); |
---|
428 | // fall through and try it the hard way |
---|
429 | } |
---|
430 | // currently not implemented "the hard way" |
---|
431 | $this->DebugMessage('FAILED: phpthumb_filters::Emboss($gdimg) [function not implemented]', __FILE__, __LINE__); |
---|
432 | return false; |
---|
433 | } |
---|
434 | |
---|
435 | |
---|
436 | function Flip(&$gdimg, $x=false, $y=false) { |
---|
437 | if (!$x && !$y) { |
---|
438 | return false; |
---|
439 | } |
---|
440 | if ($tempImage = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg), ImageSY($gdimg))) { |
---|
441 | if ($x) { |
---|
442 | ImageCopy($tempImage, $gdimg, 0, 0, 0, 0, ImageSX($gdimg), ImageSY($gdimg)); |
---|
443 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
---|
444 | ImageCopy($gdimg, $tempImage, ImageSX($gdimg) - 1 - $x, 0, $x, 0, 1, ImageSY($gdimg)); |
---|
445 | } |
---|
446 | } |
---|
447 | if ($y) { |
---|
448 | ImageCopy($tempImage, $gdimg, 0, 0, 0, 0, ImageSX($gdimg), ImageSY($gdimg)); |
---|
449 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
---|
450 | ImageCopy($gdimg, $tempImage, 0, ImageSY($gdimg) - 1 - $y, 0, $y, ImageSX($gdimg), 1); |
---|
451 | } |
---|
452 | } |
---|
453 | ImageDestroy($tempImage); |
---|
454 | } |
---|
455 | return true; |
---|
456 | } |
---|
457 | |
---|
458 | |
---|
459 | function Frame(&$gdimg, $frame_width, $edge_width, $hexcolor_frame, $hexcolor1, $hexcolor2) { |
---|
460 | $frame_width = ($frame_width ? $frame_width : 5); |
---|
461 | $edge_width = ($edge_width ? $edge_width : 1); |
---|
462 | $hexcolor_frame = ($hexcolor_frame ? $hexcolor_frame : 'CCCCCC'); |
---|
463 | $hexcolor1 = ($hexcolor1 ? $hexcolor1 : 'FFFFFF'); |
---|
464 | $hexcolor2 = ($hexcolor2 ? $hexcolor2 : '000000'); |
---|
465 | |
---|
466 | $color_frame = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor_frame); |
---|
467 | $color1 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor1); |
---|
468 | $color2 = phpthumb_functions::ImageHexColorAllocate($gdimg, $hexcolor2); |
---|
469 | for ($i = 0; $i < $edge_width; $i++) { |
---|
470 | // outer bevel |
---|
471 | ImageLine($gdimg, $i, $i, $i, ImageSY($gdimg) - $i, $color1); // left |
---|
472 | ImageLine($gdimg, $i, $i, ImageSX($gdimg) - $i, $i, $color1); // top |
---|
473 | ImageLine($gdimg, ImageSX($gdimg) - $i, ImageSY($gdimg) - $i, ImageSX($gdimg) - $i, $i, $color2); // right |
---|
474 | ImageLine($gdimg, ImageSX($gdimg) - $i, ImageSY($gdimg) - $i, $i, ImageSY($gdimg) - $i, $color2); // bottom |
---|
475 | } |
---|
476 | for ($i = 0; $i < $frame_width; $i++) { |
---|
477 | // actual frame |
---|
478 | ImageRectangle($gdimg, $edge_width + $i, $edge_width + $i, ImageSX($gdimg) - $edge_width - $i, ImageSY($gdimg) - $edge_width - $i, $color_frame); |
---|
479 | } |
---|
480 | for ($i = 0; $i < $edge_width; $i++) { |
---|
481 | // inner bevel |
---|
482 | ImageLine($gdimg, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, ImageSY($gdimg) - $frame_width - $edge_width - $i, $color2); // left |
---|
483 | ImageLine($gdimg, $frame_width + $edge_width + $i, $frame_width + $edge_width + $i, ImageSX($gdimg) - $frame_width - $edge_width - $i, $frame_width + $edge_width + $i, $color2); // top |
---|
484 | ImageLine($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, $color1); // right |
---|
485 | ImageLine($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, $color1); // bottom |
---|
486 | } |
---|
487 | return true; |
---|
488 | } |
---|
489 | |
---|
490 | |
---|
491 | function Gamma(&$gdimg, $amount) { |
---|
492 | if (number_format($amount, 4) == '1.0000') { |
---|
493 | return true; |
---|
494 | } |
---|
495 | return ImageGammaCorrect($gdimg, 1.0, $amount); |
---|
496 | } |
---|
497 | |
---|
498 | |
---|
499 | function Grayscale(&$gdimg) { |
---|
500 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
501 | if (ImageFilter($gdimg, IMG_FILTER_GRAYSCALE)) { |
---|
502 | return true; |
---|
503 | } |
---|
504 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_GRAYSCALE)', __FILE__, __LINE__); |
---|
505 | // fall through and try it the hard way |
---|
506 | } |
---|
507 | return phpthumb_filters::Colorize($gdimg, 100, 'gray'); |
---|
508 | } |
---|
509 | |
---|
510 | |
---|
511 | function HistogramAnalysis(&$gdimg, $calculateGray=false) { |
---|
512 | $ImageSX = ImageSX($gdimg); |
---|
513 | $ImageSY = ImageSY($gdimg); |
---|
514 | for ($x = 0; $x < $ImageSX; $x++) { |
---|
515 | for ($y = 0; $y < $ImageSY; $y++) { |
---|
516 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
517 | @$Analysis['red'][$OriginalPixel['red']]++; |
---|
518 | @$Analysis['green'][$OriginalPixel['green']]++; |
---|
519 | @$Analysis['blue'][$OriginalPixel['blue']]++; |
---|
520 | @$Analysis['alpha'][$OriginalPixel['alpha']]++; |
---|
521 | if ($calculateGray) { |
---|
522 | $GrayPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
---|
523 | @$Analysis['gray'][$GrayPixel['red']]++; |
---|
524 | } |
---|
525 | } |
---|
526 | } |
---|
527 | $keys = array('red', 'green', 'blue', 'alpha'); |
---|
528 | if ($calculateGray) { |
---|
529 | $keys[] = 'gray'; |
---|
530 | } |
---|
531 | foreach ($keys as $dummy => $key) { |
---|
532 | ksort($Analysis[$key]); |
---|
533 | } |
---|
534 | return $Analysis; |
---|
535 | } |
---|
536 | |
---|
537 | |
---|
538 | function HistogramStretch(&$gdimg, $band='*', $method=0, $threshold=0.1) { |
---|
539 | // equivalent of "Auto Contrast" in Adobe Photoshop |
---|
540 | // method 0 stretches according to RGB colors. Gives a more conservative stretch. |
---|
541 | // 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 |
---|
542 | $Analysis = phpthumb_filters::HistogramAnalysis($gdimg, true); |
---|
543 | $keys = array('r'=>'red', 'g'=>'green', 'b'=>'blue', 'a'=>'alpha', '*'=>(($method == 0) ? 'all' : 'gray')); |
---|
544 | $band = substr($band, 0, 1); |
---|
545 | if (!isset($keys[$band])) { |
---|
546 | return false; |
---|
547 | } |
---|
548 | $key = $keys[$band]; |
---|
549 | |
---|
550 | // If the absolute brightest and darkest pixels are used then one random |
---|
551 | // pixel in the image could throw off the whole system. Instead, count up/down |
---|
552 | // from the limit and allow <threshold> (default = 0.1%) of brightest/darkest |
---|
553 | // pixels to be clipped to min/max |
---|
554 | $threshold = floatval($threshold) / 100; |
---|
555 | $clip_threshold = ImageSX($gdimg) * ImageSX($gdimg) * $threshold; |
---|
556 | //if ($min >= 0) { |
---|
557 | // $range_min = min($min, 255); |
---|
558 | //} else { |
---|
559 | $countsum = 0; |
---|
560 | for ($i = 0; $i <= 255; $i++) { |
---|
561 | if ($method == 0) { |
---|
562 | $countsum = max(@$Analysis['red'][$i], @$Analysis['green'][$i], @$Analysis['blue'][$i]); |
---|
563 | } else { |
---|
564 | $countsum += @$Analysis[$key][$i]; |
---|
565 | } |
---|
566 | if ($countsum >= $clip_threshold) { |
---|
567 | $range_min = $i - 1; |
---|
568 | break; |
---|
569 | } |
---|
570 | } |
---|
571 | $range_min = max($range_min, 0); |
---|
572 | //} |
---|
573 | //if ($max > 0) { |
---|
574 | // $range_max = max($max, 255); |
---|
575 | //} else { |
---|
576 | $countsum = 0; |
---|
577 | for ($i = 255; $i >= 0; $i--) { |
---|
578 | if ($method == 0) { |
---|
579 | $countsum = max(@$Analysis['red'][$i], @$Analysis['green'][$i], @$Analysis['blue'][$i]); |
---|
580 | } else { |
---|
581 | $countsum += @$Analysis[$key][$i]; |
---|
582 | } |
---|
583 | if ($countsum >= $clip_threshold) { |
---|
584 | $range_max = $i + 1; |
---|
585 | break; |
---|
586 | } |
---|
587 | } |
---|
588 | $range_max = min($range_max, 255); |
---|
589 | //} |
---|
590 | $range_scale = (($range_max == $range_min) ? 1 : (255 / ($range_max - $range_min))); |
---|
591 | if (($range_min == 0) && ($range_max == 255)) { |
---|
592 | // no adjustment neccesary - don't waste CPU time! |
---|
593 | return true; |
---|
594 | } |
---|
595 | |
---|
596 | $ImageSX = ImageSX($gdimg); |
---|
597 | $ImageSY = ImageSY($gdimg); |
---|
598 | for ($x = 0; $x < $ImageSX; $x++) { |
---|
599 | for ($y = 0; $y < $ImageSY; $y++) { |
---|
600 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
601 | if ($band == '*') { |
---|
602 | $new['red'] = min(255, max(0, ($OriginalPixel['red'] - $range_min) * $range_scale)); |
---|
603 | $new['green'] = min(255, max(0, ($OriginalPixel['green'] - $range_min) * $range_scale)); |
---|
604 | $new['blue'] = min(255, max(0, ($OriginalPixel['blue'] - $range_min) * $range_scale)); |
---|
605 | $new['alpha'] = min(255, max(0, ($OriginalPixel['alpha'] - $range_min) * $range_scale)); |
---|
606 | } else { |
---|
607 | $new = $OriginalPixel; |
---|
608 | $new[$key] = min(255, max(0, ($OriginalPixel[$key] - $range_min) * $range_scale)); |
---|
609 | } |
---|
610 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $new['red'], $new['green'], $new['blue'], $new['alpha']); |
---|
611 | ImageSetPixel($gdimg, $x, $y, $newColor); |
---|
612 | } |
---|
613 | } |
---|
614 | |
---|
615 | return true; |
---|
616 | } |
---|
617 | |
---|
618 | |
---|
619 | function HistogramOverlay(&$gdimg, $bands='*', $colors='', $width=0.25, $height=0.25, $alignment='BR', $opacity=50, $margin_x=5, $margin_y=null) { |
---|
620 | $margin_y = (is_null($margin_y) ? $margin_x : $margin_y); |
---|
621 | |
---|
622 | $Analysis = phpthumb_filters::HistogramAnalysis($gdimg, true); |
---|
623 | $histW = round(($width > 1) ? min($width, ImageSX($gdimg)) : ImageSX($gdimg) * $width); |
---|
624 | $histH = round(($width > 1) ? min($width, ImageSX($gdimg)) : ImageSX($gdimg) * $width); |
---|
625 | if ($gdHist = ImageCreateTrueColor($histW, $histH)) { |
---|
626 | $color_back = phpthumb_functions::ImageColorAllocateAlphaSafe($gdHist, 0, 0, 0, 127); |
---|
627 | ImageFilledRectangle($gdHist, 0, 0, $histW, $histH, $color_back); |
---|
628 | ImageAlphaBlending($gdHist, false); |
---|
629 | ImageSaveAlpha($gdHist, true); |
---|
630 | |
---|
631 | $HistogramTempWidth = 256; |
---|
632 | $HistogramTempHeight = 100; |
---|
633 | if ($gdHistTemp = ImageCreateTrueColor($HistogramTempWidth, $HistogramTempHeight)) { |
---|
634 | $color_back_temp = phpthumb_functions::ImageColorAllocateAlphaSafe($gdHistTemp, 255, 0, 255, 127); |
---|
635 | ImageAlphaBlending($gdHistTemp, false); |
---|
636 | ImageSaveAlpha($gdHistTemp, true); |
---|
637 | ImageFilledRectangle($gdHistTemp, 0, 0, ImageSX($gdHistTemp), ImageSY($gdHistTemp), $color_back_temp); |
---|
638 | |
---|
639 | $DefaultColors = array('r'=>'FF0000', 'g'=>'00FF00', 'b'=>'0000FF', 'a'=>'999999', '*'=>'FFFFFF'); |
---|
640 | $Colors = explode(';', $colors); |
---|
641 | $BandsToGraph = array_unique(preg_split('##', $bands)); |
---|
642 | $keys = array('r'=>'red', 'g'=>'green', 'b'=>'blue', 'a'=>'alpha', '*'=>'gray'); |
---|
643 | foreach ($BandsToGraph as $key => $band) { |
---|
644 | if (!isset($keys[$band])) { |
---|
645 | continue; |
---|
646 | } |
---|
647 | $PeakValue = max($Analysis[$keys[$band]]); |
---|
648 | $thisColor = phpthumb_functions::ImageHexColorAllocate($gdHistTemp, phpthumb_functions::IsHexColor(@$Colors[$key]) ? $Colors[$key] : $DefaultColors[$band]); |
---|
649 | for ($x = 0; $x < $HistogramTempWidth; $x++) { |
---|
650 | ImageLine($gdHistTemp, $x, $HistogramTempHeight - 1, $x, $HistogramTempHeight - 1 - round(@$Analysis[$keys[$band]][$x] / $PeakValue * $HistogramTempHeight), $thisColor); |
---|
651 | } |
---|
652 | ImageLine($gdHistTemp, 0, $HistogramTempHeight - 1, $HistogramTempWidth - 1, $HistogramTempHeight - 1, $thisColor); |
---|
653 | ImageLine($gdHistTemp, 0, $HistogramTempHeight - 2, $HistogramTempWidth - 1, $HistogramTempHeight - 2, $thisColor); |
---|
654 | } |
---|
655 | ImageCopyResampled($gdHist, $gdHistTemp, 0, 0, 0, 0, ImageSX($gdHist), ImageSY($gdHist), ImageSX($gdHistTemp), ImageSY($gdHistTemp)); |
---|
656 | ImageDestroy($gdHistTemp); |
---|
657 | } else { |
---|
658 | return false; |
---|
659 | } |
---|
660 | |
---|
661 | phpthumb_filters::WatermarkOverlay($gdimg, $gdHist, $alignment, $opacity, $margin_x, $margin_y); |
---|
662 | ImageDestroy($gdHist); |
---|
663 | return true; |
---|
664 | } |
---|
665 | return false; |
---|
666 | } |
---|
667 | |
---|
668 | |
---|
669 | function ImageBorder(&$gdimg, $border_width, $radius_x, $radius_y, $hexcolor_border) { |
---|
670 | $border_width = ($border_width ? $border_width : 1); |
---|
671 | $radius_x = ($radius_x ? $radius_x : 0); |
---|
672 | $radius_y = ($radius_y ? $radius_y : 0); |
---|
673 | |
---|
674 | $output_width = ImageSX($gdimg); |
---|
675 | $output_height = ImageSY($gdimg); |
---|
676 | |
---|
677 | list($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)); |
---|
678 | $offset_x = ($radius_x ? $output_width - $new_width - $radius_x : 0); |
---|
679 | $offset_y = ($radius_y ? $output_height - $new_height - $radius_y : 0); |
---|
680 | |
---|
681 | //header('Content-Type: image/png'); |
---|
682 | //ImagePNG($gdimg); |
---|
683 | //exit; |
---|
684 | if ($gd_border_canvas = phpthumb_functions::ImageCreateFunction($output_width, $output_height)) { |
---|
685 | |
---|
686 | ImageSaveAlpha($gd_border_canvas, true); |
---|
687 | ImageAlphaBlending($gd_border_canvas, false); |
---|
688 | $color_background = phpthumb_functions::ImageColorAllocateAlphaSafe($gd_border_canvas, 255, 255, 255, 127); |
---|
689 | ImageFilledRectangle($gd_border_canvas, 0, 0, $output_width, $output_height, $color_background); |
---|
690 | |
---|
691 | $color_border = phpthumb_functions::ImageHexColorAllocate($gd_border_canvas, (phpthumb_functions::IsHexColor($hexcolor_border) ? $hexcolor_border : '000000')); |
---|
692 | |
---|
693 | for ($i = 0; $i < $border_width; $i++) { |
---|
694 | ImageLine($gd_border_canvas, floor($offset_x / 2) + $radius_x, $i, $output_width - $radius_x - ceil($offset_x / 2), $i, $color_border); // top |
---|
695 | ImageLine($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, $color_border); // bottom |
---|
696 | ImageLine($gd_border_canvas, floor($offset_x / 2) + $i, $radius_y, floor($offset_x / 2) + $i, $output_height - $radius_y, $color_border); // left |
---|
697 | ImageLine($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, $color_border); // right |
---|
698 | } |
---|
699 | |
---|
700 | if ($radius_x && $radius_y) { |
---|
701 | |
---|
702 | // PHP bug: ImageArc() with thicknesses > 1 give bad/undesirable/unpredicatable results |
---|
703 | // Solution: Draw multiple 1px arcs side-by-side. |
---|
704 | |
---|
705 | // Problem: parallel arcs give strange/ugly antialiasing problems |
---|
706 | // Solution: draw non-parallel arcs, from one side of the line thickness at the start angle |
---|
707 | // to the opposite edge of the line thickness at the terminating angle |
---|
708 | for ($thickness_offset = 0; $thickness_offset < $border_width; $thickness_offset++) { |
---|
709 | ImageArc($gd_border_canvas, floor($offset_x / 2) + 1 + $radius_x, $thickness_offset - 1 + $radius_y, $radius_x * 2, $radius_y * 2, 180, 270, $color_border); // top-left |
---|
710 | ImageArc($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, $color_border); // top-right |
---|
711 | ImageArc($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, $color_border); // bottom-right |
---|
712 | ImageArc($gd_border_canvas, floor($offset_x / 2) + 1 + $radius_x, $output_height - $thickness_offset - $radius_y, $radius_x * 2, $radius_y * 2, 90, 180, $color_border); // bottom-left |
---|
713 | } |
---|
714 | if ($border_width > 1) { |
---|
715 | for ($thickness_offset = 0; $thickness_offset < $border_width; $thickness_offset++) { |
---|
716 | ImageArc($gd_border_canvas, floor($offset_x / 2) + $thickness_offset + $radius_x, $radius_y, $radius_x * 2, $radius_y * 2, 180, 270, $color_border); // top-left |
---|
717 | ImageArc($gd_border_canvas, $output_width - $thickness_offset - $radius_x - 1 - ceil($offset_x / 2), $radius_y, $radius_x * 2, $radius_y * 2, 270, 360, $color_border); // top-right |
---|
718 | ImageArc($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, $color_border); // bottom-right |
---|
719 | ImageArc($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 |
---|
720 | } |
---|
721 | } |
---|
722 | |
---|
723 | } |
---|
724 | $this->phpThumbObject->ImageResizeFunction($gd_border_canvas, $gdimg, floor(($output_width - $new_width) / 2), round(($output_height - $new_height) / 2), 0, 0, $new_width, $new_height, $output_width, $output_height); |
---|
725 | |
---|
726 | ImageDestroy($gdimg); |
---|
727 | $gdimg = phpthumb_functions::ImageCreateFunction($output_width, $output_height); |
---|
728 | ImageSaveAlpha($gdimg, true); |
---|
729 | ImageAlphaBlending($gdimg, false); |
---|
730 | $gdimg_color_background = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 255, 255, 255, 127); |
---|
731 | ImageFilledRectangle($gdimg, 0, 0, $output_width, $output_height, $gdimg_color_background); |
---|
732 | |
---|
733 | ImageCopy($gdimg, $gd_border_canvas, 0, 0, 0, 0, $output_width, $output_height); |
---|
734 | //$gdimg = $gd_border_canvas; |
---|
735 | ImageDestroy($gd_border_canvas); |
---|
736 | return true; |
---|
737 | |
---|
738 | |
---|
739 | } else { |
---|
740 | $this->DebugMessage('FAILED: $gd_border_canvas = phpthumb_functions::ImageCreateFunction('.$output_width.', '.$output_height.')', __FILE__, __LINE__); |
---|
741 | } |
---|
742 | return false; |
---|
743 | } |
---|
744 | |
---|
745 | |
---|
746 | function ImprovedImageRotate(&$gdimg_source, $rotate_angle=0, $config_background_hexcolor='FFFFFF', $bg=null) { |
---|
747 | while ($rotate_angle < 0) { |
---|
748 | $rotate_angle += 360; |
---|
749 | } |
---|
750 | $rotate_angle = $rotate_angle % 360; |
---|
751 | if ($rotate_angle != 0) { |
---|
752 | |
---|
753 | $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_source, $config_background_hexcolor); |
---|
754 | |
---|
755 | if ((phpthumb_functions::gd_version() >= 2) && !$bg && ($rotate_angle % 90)) { |
---|
756 | |
---|
757 | //$this->DebugMessage('Using alpha rotate', __FILE__, __LINE__); |
---|
758 | if ($gdimg_rotate_mask = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source))) { |
---|
759 | |
---|
760 | for ($i = 0; $i <= 255; $i++) { |
---|
761 | $color_mask[$i] = ImageColorAllocate($gdimg_rotate_mask, $i, $i, $i); |
---|
762 | } |
---|
763 | ImageFilledRectangle($gdimg_rotate_mask, 0, 0, ImageSX($gdimg_rotate_mask), ImageSY($gdimg_rotate_mask), $color_mask[255]); |
---|
764 | $imageX = ImageSX($gdimg_source); |
---|
765 | $imageY = ImageSY($gdimg_source); |
---|
766 | for ($x = 0; $x < $imageX; $x++) { |
---|
767 | for ($y = 0; $y < $imageY; $y++) { |
---|
768 | $pixelcolor = phpthumb_functions::GetPixelColor($gdimg_source, $x, $y); |
---|
769 | ImageSetPixel($gdimg_rotate_mask, $x, $y, $color_mask[255 - round($pixelcolor['alpha'] * 255 / 127)]); |
---|
770 | } |
---|
771 | } |
---|
772 | $gdimg_rotate_mask = ImageRotate($gdimg_rotate_mask, $rotate_angle, $color_mask[0]); |
---|
773 | $gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color); |
---|
774 | |
---|
775 | ImageAlphaBlending($gdimg_source, false); |
---|
776 | ImageSaveAlpha($gdimg_source, true); |
---|
777 | //$this->is_alpha = true; |
---|
778 | $phpThumbFilters = new phpthumb_filters(); |
---|
779 | $phpThumbFilters->phpThumbObject = $this; |
---|
780 | $phpThumbFilters->ApplyMask($gdimg_rotate_mask, $gdimg_source); |
---|
781 | |
---|
782 | ImageDestroy($gdimg_rotate_mask); |
---|
783 | |
---|
784 | } else { |
---|
785 | //$this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__); |
---|
786 | } |
---|
787 | |
---|
788 | } else { |
---|
789 | |
---|
790 | if (phpthumb_functions::gd_version() < 2) { |
---|
791 | //$this->DebugMessage('Using non-alpha rotate because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__); |
---|
792 | } elseif ($bg) { |
---|
793 | //$this->DebugMessage('Using non-alpha rotate because $this->bg is "'.$bg.'"', __FILE__, __LINE__); |
---|
794 | } elseif ($rotate_angle % 90) { |
---|
795 | //$this->DebugMessage('Using non-alpha rotate because ($rotate_angle % 90) = "'.($rotate_angle % 90).'"', __FILE__, __LINE__); |
---|
796 | } else { |
---|
797 | //$this->DebugMessage('Using non-alpha rotate because $this->thumbnailFormat is "'.$this->thumbnailFormat.'"', __FILE__, __LINE__); |
---|
798 | } |
---|
799 | |
---|
800 | if (ImageColorTransparent($gdimg_source) >= 0) { |
---|
801 | // ImageRotate() forgets all about an image's transparency and sets the transparent color to black |
---|
802 | // To compensate, flood-fill the transparent color of the source image with the specified background color first |
---|
803 | // then rotate and the colors should match |
---|
804 | |
---|
805 | if (!function_exists('ImageIsTrueColor') || !ImageIsTrueColor($gdimg_source)) { |
---|
806 | // convert paletted image to true-color before rotating to prevent nasty aliasing artifacts |
---|
807 | |
---|
808 | //$this->source_width = ImageSX($gdimg_source); |
---|
809 | //$this->source_height = ImageSY($gdimg_source); |
---|
810 | $gdimg_newsrc = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source)); |
---|
811 | $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor); |
---|
812 | ImageFilledRectangle($gdimg_newsrc, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source), phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor)); |
---|
813 | ImageCopy($gdimg_newsrc, $gdimg_source, 0, 0, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source)); |
---|
814 | ImageDestroy($gdimg_source); |
---|
815 | unset($gdimg_source); |
---|
816 | $gdimg_source = $gdimg_newsrc; |
---|
817 | unset($gdimg_newsrc); |
---|
818 | |
---|
819 | } else { |
---|
820 | |
---|
821 | ImageColorSet( |
---|
822 | $gdimg_source, |
---|
823 | ImageColorTransparent($gdimg_source), |
---|
824 | hexdec(substr($config_background_hexcolor, 0, 2)), |
---|
825 | hexdec(substr($config_background_hexcolor, 2, 2)), |
---|
826 | hexdec(substr($config_background_hexcolor, 4, 2))); |
---|
827 | |
---|
828 | ImageColorTransparent($gdimg_source, -1); |
---|
829 | |
---|
830 | } |
---|
831 | } |
---|
832 | |
---|
833 | $gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color); |
---|
834 | |
---|
835 | } |
---|
836 | } |
---|
837 | return true; |
---|
838 | } |
---|
839 | |
---|
840 | |
---|
841 | function MeanRemoval(&$gdimg) { |
---|
842 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
843 | if (ImageFilter($gdimg, IMG_FILTER_MEAN_REMOVAL)) { |
---|
844 | return true; |
---|
845 | } |
---|
846 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_MEAN_REMOVAL)', __FILE__, __LINE__); |
---|
847 | // fall through and try it the hard way |
---|
848 | } |
---|
849 | // currently not implemented "the hard way" |
---|
850 | $this->DebugMessage('FAILED: phpthumb_filters::MeanRemoval($gdimg) [function not implemented]', __FILE__, __LINE__); |
---|
851 | return false; |
---|
852 | } |
---|
853 | |
---|
854 | |
---|
855 | function Negative(&$gdimg) { |
---|
856 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
857 | if (ImageFilter($gdimg, IMG_FILTER_NEGATE)) { |
---|
858 | return true; |
---|
859 | } |
---|
860 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_NEGATE)', __FILE__, __LINE__); |
---|
861 | // fall through and try it the hard way |
---|
862 | } |
---|
863 | $ImageSX = ImageSX($gdimg); |
---|
864 | $ImageSY = ImageSY($gdimg); |
---|
865 | for ($x = 0; $x < $ImageSX; $x++) { |
---|
866 | for ($y = 0; $y < $ImageSY; $y++) { |
---|
867 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
868 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, (~$currentPixel['red'] & 0xFF), (~$currentPixel['green'] & 0xFF), (~$currentPixel['blue'] & 0xFF), $currentPixel['alpha']); |
---|
869 | ImageSetPixel($gdimg, $x, $y, $newColor); |
---|
870 | } |
---|
871 | } |
---|
872 | return true; |
---|
873 | } |
---|
874 | |
---|
875 | |
---|
876 | function RoundedImageCorners(&$gdimg, $radius_x, $radius_y) { |
---|
877 | // generate mask at twice desired resolution and downsample afterwards for easy antialiasing |
---|
878 | // mask is generated as a white double-size elipse on a triple-size black background and copy-paste-resampled |
---|
879 | // onto a correct-size mask image as 4 corners due to errors when the entire mask is resampled at once (gray edges) |
---|
880 | if ($gdimg_cornermask_triple = phpthumb_functions::ImageCreateFunction($radius_x * 6, $radius_y * 6)) { |
---|
881 | if ($gdimg_cornermask = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg), ImageSY($gdimg))) { |
---|
882 | |
---|
883 | $color_transparent = ImageColorAllocate($gdimg_cornermask_triple, 255, 255, 255); |
---|
884 | ImageFilledEllipse($gdimg_cornermask_triple, $radius_x * 3, $radius_y * 3, $radius_x * 4, $radius_y * 4, $color_transparent); |
---|
885 | |
---|
886 | ImageFilledRectangle($gdimg_cornermask, 0, 0, ImageSX($gdimg), ImageSY($gdimg), $color_transparent); |
---|
887 | |
---|
888 | ImageCopyResampled($gdimg_cornermask, $gdimg_cornermask_triple, 0, 0, $radius_x, $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
---|
889 | ImageCopyResampled($gdimg_cornermask, $gdimg_cornermask_triple, 0, ImageSY($gdimg) - $radius_y, $radius_x, $radius_y * 3, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
---|
890 | ImageCopyResampled($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, $radius_y * 2); |
---|
891 | ImageCopyResampled($gdimg_cornermask, $gdimg_cornermask_triple, ImageSX($gdimg) - $radius_x, 0, $radius_x * 3, $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2); |
---|
892 | |
---|
893 | phpthumb_filters::ApplyMask($gdimg_cornermask, $gdimg); |
---|
894 | ImageDestroy($gdimg_cornermask); |
---|
895 | $this->DebugMessage('RoundedImageCorners('.$radius_x.', '.$radius_y.') succeeded', __FILE__, __LINE__); |
---|
896 | return true; |
---|
897 | |
---|
898 | } else { |
---|
899 | $this->DebugMessage('FAILED: $gdimg_cornermask = phpthumb_functions::ImageCreateFunction('.ImageSX($gdimg).', '.ImageSY($gdimg).')', __FILE__, __LINE__); |
---|
900 | } |
---|
901 | ImageDestroy($gdimg_cornermask_triple); |
---|
902 | |
---|
903 | } else { |
---|
904 | $this->DebugMessage('FAILED: $gdimg_cornermask_triple = phpthumb_functions::ImageCreateFunction('.($radius_x * 6).', '.($radius_y * 6).')', __FILE__, __LINE__); |
---|
905 | } |
---|
906 | return false; |
---|
907 | } |
---|
908 | |
---|
909 | |
---|
910 | function Saturation(&$gdimg, $amount, $color='') { |
---|
911 | if ($amount == 0) { |
---|
912 | return true; |
---|
913 | } elseif ($amount > 0) { |
---|
914 | $amount = 0 - $amount; |
---|
915 | } else { |
---|
916 | $amount = abs($amount); |
---|
917 | } |
---|
918 | return phpthumb_filters::Desaturate($gdimg, $amount, $color); |
---|
919 | } |
---|
920 | |
---|
921 | |
---|
922 | function Sepia(&$gdimg, $amount, $targetColor) { |
---|
923 | $amount = (is_numeric($amount) ? max(0, min(100, $amount)) : 50); |
---|
924 | $amountPct = $amount / 100; |
---|
925 | $targetColor = (phpthumb_functions::IsHexColor($targetColor) ? $targetColor : 'A28065'); |
---|
926 | |
---|
927 | if ($amount == 0) { |
---|
928 | return true; |
---|
929 | } |
---|
930 | |
---|
931 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
932 | if (ImageFilter($gdimg, IMG_FILTER_GRAYSCALE)) { |
---|
933 | |
---|
934 | $r = round($amountPct * hexdec(substr($targetColor, 0, 2))); |
---|
935 | $g = round($amountPct * hexdec(substr($targetColor, 2, 2))); |
---|
936 | $b = round($amountPct * hexdec(substr($targetColor, 4, 2))); |
---|
937 | if (ImageFilter($gdimg, IMG_FILTER_COLORIZE, $r, $g, $b)) { |
---|
938 | return true; |
---|
939 | } |
---|
940 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_COLORIZE)', __FILE__, __LINE__); |
---|
941 | // fall through and try it the hard way |
---|
942 | |
---|
943 | } else { |
---|
944 | |
---|
945 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_GRAYSCALE)', __FILE__, __LINE__); |
---|
946 | // fall through and try it the hard way |
---|
947 | |
---|
948 | } |
---|
949 | } |
---|
950 | |
---|
951 | $TargetPixel['red'] = hexdec(substr($targetColor, 0, 2)); |
---|
952 | $TargetPixel['green'] = hexdec(substr($targetColor, 2, 2)); |
---|
953 | $TargetPixel['blue'] = hexdec(substr($targetColor, 4, 2)); |
---|
954 | |
---|
955 | $ImageSX = ImageSX($gdimg); |
---|
956 | $ImageSY = ImageSY($gdimg); |
---|
957 | for ($x = 0; $x < $ImageSX; $x++) { |
---|
958 | for ($y = 0; $y < $ImageSY; $y++) { |
---|
959 | $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
960 | $GrayPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); |
---|
961 | |
---|
962 | // http://www.gimpguru.org/Tutorials/SepiaToning/ |
---|
963 | // "In the traditional sepia toning process, the tinting occurs most in |
---|
964 | // the mid-tones: the lighter and darker areas appear to be closer to B&W." |
---|
965 | $SepiaAmount = ((128 - abs($GrayPixel['red'] - 128)) / 128) * $amountPct; |
---|
966 | |
---|
967 | foreach ($TargetPixel as $key => $value) { |
---|
968 | $NewPixel[$key] = round(max(0, min(255, $GrayPixel[$key] * (1 - $SepiaAmount) + ($TargetPixel[$key] * $SepiaAmount)))); |
---|
969 | } |
---|
970 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue'], $OriginalPixel['alpha']); |
---|
971 | ImageSetPixel($gdimg, $x, $y, $newColor); |
---|
972 | } |
---|
973 | } |
---|
974 | return true; |
---|
975 | } |
---|
976 | |
---|
977 | |
---|
978 | function Smooth(&$gdimg, $amount=6) { |
---|
979 | $amount = min(25, max(0, $amount)); |
---|
980 | if ($amount == 0) { |
---|
981 | return true; |
---|
982 | } |
---|
983 | if (phpthumb_functions::version_compare_replacement(phpversion(), '5.0.0', '>=') && phpthumb_functions::gd_is_bundled()) { |
---|
984 | if (ImageFilter($gdimg, IMG_FILTER_SMOOTH, $amount)) { |
---|
985 | return true; |
---|
986 | } |
---|
987 | $this->DebugMessage('FAILED: ImageFilter($gdimg, IMG_FILTER_SMOOTH, '.$amount.')', __FILE__, __LINE__); |
---|
988 | // fall through and try it the hard way |
---|
989 | } |
---|
990 | // currently not implemented "the hard way" |
---|
991 | $this->DebugMessage('FAILED: phpthumb_filters::Smooth($gdimg, '.$amount.') [function not implemented]', __FILE__, __LINE__); |
---|
992 | return false; |
---|
993 | } |
---|
994 | |
---|
995 | |
---|
996 | function SourceTransparentColorMask(&$gdimg, $hexcolor, $min_limit=5, $max_limit=10) { |
---|
997 | $width = ImageSX($gdimg); |
---|
998 | $height = ImageSY($gdimg); |
---|
999 | if ($gdimg_mask = ImageCreateTrueColor($width, $height)) { |
---|
1000 | $R = hexdec(substr($hexcolor, 0, 2)); |
---|
1001 | $G = hexdec(substr($hexcolor, 2, 2)); |
---|
1002 | $B = hexdec(substr($hexcolor, 4, 2)); |
---|
1003 | $targetPixel = array('red'=>$R, 'green'=>$G, 'blue'=>$B); |
---|
1004 | $cutoffRange = $max_limit - $min_limit; |
---|
1005 | for ($x = 0; $x < $width; $x++) { |
---|
1006 | for ($y = 0; $y < $height; $y++) { |
---|
1007 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
1008 | $colorDiff = phpthumb_functions::PixelColorDifferencePercent($currentPixel, $targetPixel); |
---|
1009 | $grayLevel = min($cutoffRange, MAX(0, -$min_limit + $colorDiff)) * (255 / MAX(1, $cutoffRange)); |
---|
1010 | $newColor = ImageColorAllocate($gdimg_mask, $grayLevel, $grayLevel, $grayLevel); |
---|
1011 | ImageSetPixel($gdimg_mask, $x, $y, $newColor); |
---|
1012 | } |
---|
1013 | } |
---|
1014 | return $gdimg_mask; |
---|
1015 | } |
---|
1016 | return false; |
---|
1017 | } |
---|
1018 | |
---|
1019 | |
---|
1020 | function Threshold(&$gdimg, $cutoff) { |
---|
1021 | $width = ImageSX($gdimg); |
---|
1022 | $height = ImageSY($gdimg); |
---|
1023 | $cutoff = min(255, max(0, ($cutoff ? $cutoff : 128))); |
---|
1024 | for ($x = 0; $x < $width; $x++) { |
---|
1025 | for ($y = 0; $y < $height; $y++) { |
---|
1026 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
1027 | $grayPixel = phpthumb_functions::GrayscalePixel($currentPixel); |
---|
1028 | if ($grayPixel['red'] < $cutoff) { |
---|
1029 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 0x00, 0x00, 0x00, $currentPixel['alpha']); |
---|
1030 | } else { |
---|
1031 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, 0xFF, 0xFF, 0xFF, $currentPixel['alpha']); |
---|
1032 | } |
---|
1033 | ImageSetPixel($gdimg, $x, $y, $newColor); |
---|
1034 | } |
---|
1035 | } |
---|
1036 | return true; |
---|
1037 | } |
---|
1038 | |
---|
1039 | |
---|
1040 | function ImageTrueColorToPalette2(&$image, $dither, $ncolors) { |
---|
1041 | // http://www.php.net/manual/en/function.imagetruecolortopalette.php |
---|
1042 | // zmorris at zsculpt dot com (17-Aug-2004 06:58) |
---|
1043 | $width = ImageSX($image); |
---|
1044 | $height = ImageSY($image); |
---|
1045 | $image_copy = ImageCreateTrueColor($width, $height); |
---|
1046 | //ImageCopyMerge($image_copy, $image, 0, 0, 0, 0, $width, $height, 100); |
---|
1047 | ImageCopy($image_copy, $image, 0, 0, 0, 0, $width, $height); |
---|
1048 | ImageTrueColorToPalette($image, $dither, $ncolors); |
---|
1049 | ImageColorMatch($image_copy, $image); |
---|
1050 | ImageDestroy($image_copy); |
---|
1051 | return true; |
---|
1052 | } |
---|
1053 | |
---|
1054 | function ReduceColorDepth(&$gdimg, $colors=256, $dither=true) { |
---|
1055 | $colors = max(min($colors, 256), 2); |
---|
1056 | // ImageTrueColorToPalette usually makes ugly colors, the replacement is a bit better |
---|
1057 | //ImageTrueColorToPalette($gdimg, $dither, $colors); |
---|
1058 | phpthumb_filters::ImageTrueColorToPalette2($gdimg, $dither, $colors); |
---|
1059 | return true; |
---|
1060 | } |
---|
1061 | |
---|
1062 | |
---|
1063 | function WhiteBalance(&$gdimg, $targetColor='') { |
---|
1064 | if (phpthumb_functions::IsHexColor($targetColor)) { |
---|
1065 | $targetPixel = array( |
---|
1066 | 'red' => hexdec(substr($targetColor, 0, 2)), |
---|
1067 | 'green' => hexdec(substr($targetColor, 2, 2)), |
---|
1068 | 'blue' => hexdec(substr($targetColor, 4, 2)) |
---|
1069 | ); |
---|
1070 | } else { |
---|
1071 | $Analysis = phpthumb_filters::HistogramAnalysis($gdimg, false); |
---|
1072 | $targetPixel = array( |
---|
1073 | 'red' => max(array_keys($Analysis['red'])), |
---|
1074 | 'green' => max(array_keys($Analysis['green'])), |
---|
1075 | 'blue' => max(array_keys($Analysis['blue'])) |
---|
1076 | ); |
---|
1077 | } |
---|
1078 | $grayValue = phpthumb_functions::GrayscaleValue($targetPixel['red'], $targetPixel['green'], $targetPixel['blue']); |
---|
1079 | $scaleR = $grayValue / $targetPixel['red']; |
---|
1080 | $scaleG = $grayValue / $targetPixel['green']; |
---|
1081 | $scaleB = $grayValue / $targetPixel['blue']; |
---|
1082 | |
---|
1083 | for ($x = 0; $x < ImageSX($gdimg); $x++) { |
---|
1084 | for ($y = 0; $y < ImageSY($gdimg); $y++) { |
---|
1085 | $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); |
---|
1086 | $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe( |
---|
1087 | $gdimg, |
---|
1088 | max(0, min(255, round($currentPixel['red'] * $scaleR))), |
---|
1089 | max(0, min(255, round($currentPixel['green'] * $scaleG))), |
---|
1090 | max(0, min(255, round($currentPixel['blue'] * $scaleB))), |
---|
1091 | $currentPixel['alpha'] |
---|
1092 | ); |
---|
1093 | ImageSetPixel($gdimg, $x, $y, $newColor); |
---|
1094 | } |
---|
1095 | } |
---|
1096 | return true; |
---|
1097 | } |
---|
1098 | |
---|
1099 | |
---|
1100 | function WatermarkText(&$gdimg, $text, $size, $alignment, $hex_color='000000', $ttffont='', $opacity=100, $margin=5, $angle=0, $bg_color=false, $bg_opacity=0, $fillextend='') { |
---|
1101 | // text watermark requested |
---|
1102 | if (!$text) { |
---|
1103 | return false; |
---|
1104 | } |
---|
1105 | ImageAlphaBlending($gdimg, true); |
---|
1106 | |
---|
1107 | if (preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)(@[LCR])?$#i', $alignment, $matches)) { |
---|
1108 | $originOffsetX = intval($matches[1]); |
---|
1109 | $originOffsetY = intval($matches[2]); |
---|
1110 | $alignment = (@$matches[4] ? $matches[4] : 'L'); |
---|
1111 | $margin = 0; |
---|
1112 | } else { |
---|
1113 | $originOffsetX = 0; |
---|
1114 | $originOffsetY = 0; |
---|
1115 | } |
---|
1116 | |
---|
1117 | $metaTextArray = array( |
---|
1118 | '^Fb' => $this->phpThumbObject->getimagesizeinfo['filesize'], |
---|
1119 | '^Fk' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1024), |
---|
1120 | '^Fm' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1048576), |
---|
1121 | '^X' => $this->phpThumbObject->getimagesizeinfo[0], |
---|
1122 | '^Y' => $this->phpThumbObject->getimagesizeinfo[1], |
---|
1123 | '^x' => ImageSX($gdimg), |
---|
1124 | '^y' => ImageSY($gdimg), |
---|
1125 | '^^' => '^', |
---|
1126 | ); |
---|
1127 | $text = strtr($text, $metaTextArray); |
---|
1128 | |
---|
1129 | $text = str_replace("\r\n", "\n", $text); |
---|
1130 | $text = str_replace("\r", "\n", $text); |
---|
1131 | $textlines = explode("\n", $text); |
---|
1132 | $this->DebugMessage('Processing '.count($textlines).' lines of text', __FILE__, __LINE__); |
---|
1133 | |
---|
1134 | if (@is_readable($ttffont) && is_file($ttffont)) { |
---|
1135 | |
---|
1136 | $opacity = 100 - intval(max(min($opacity, 100), 0)); |
---|
1137 | $letter_color_text = phpthumb_functions::ImageHexColorAllocate($gdimg, $hex_color, false, $opacity * 1.27); |
---|
1138 | |
---|
1139 | $this->DebugMessage('Using TTF font "'.$ttffont.'"', __FILE__, __LINE__); |
---|
1140 | |
---|
1141 | $TTFbox = ImageTTFbBox($size, $angle, $ttffont, $text); |
---|
1142 | |
---|
1143 | $min_x = min($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); |
---|
1144 | $max_x = max($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); |
---|
1145 | //$text_width = round($max_x - $min_x + ($size * 0.5)); |
---|
1146 | $text_width = round($max_x - $min_x); |
---|
1147 | |
---|
1148 | $min_y = min($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); |
---|
1149 | $max_y = max($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); |
---|
1150 | //$text_height = round($max_y - $min_y + ($size * 0.5)); |
---|
1151 | $text_height = round($max_y - $min_y); |
---|
1152 | |
---|
1153 | $TTFboxChar = ImageTTFbBox($size, $angle, $ttffont, 'jH'); |
---|
1154 | $char_min_y = min($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); |
---|
1155 | $char_max_y = max($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); |
---|
1156 | $char_height = round($char_max_y - $char_min_y); |
---|
1157 | |
---|
1158 | if ($alignment == '*') { |
---|
1159 | |
---|
1160 | $text_origin_y = $char_height + $margin; |
---|
1161 | while (($text_origin_y - $text_height) < ImageSY($gdimg)) { |
---|
1162 | $text_origin_x = $margin; |
---|
1163 | while ($text_origin_x < ImageSX($gdimg)) { |
---|
1164 | ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); |
---|
1165 | $text_origin_x += ($text_width + $margin); |
---|
1166 | } |
---|
1167 | $text_origin_y += ($text_height + $margin); |
---|
1168 | } |
---|
1169 | |
---|
1170 | } else { |
---|
1171 | |
---|
1172 | // this block for background color only |
---|
1173 | |
---|
1174 | switch ($alignment) { |
---|
1175 | case '*': |
---|
1176 | // handled separately |
---|
1177 | break; |
---|
1178 | |
---|
1179 | case 'T': |
---|
1180 | $text_origin_x = ($originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2)); |
---|
1181 | $text_origin_y = $char_height + $margin + $originOffsetY; |
---|
1182 | break; |
---|
1183 | |
---|
1184 | case 'B': |
---|
1185 | $text_origin_x = ($originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2)); |
---|
1186 | $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; |
---|
1187 | break; |
---|
1188 | |
---|
1189 | case 'L': |
---|
1190 | $text_origin_x = $margin + $originOffsetX; |
---|
1191 | $text_origin_y = ($originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height); |
---|
1192 | break; |
---|
1193 | |
---|
1194 | case 'R': |
---|
1195 | $text_origin_x = ($originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin); |
---|
1196 | $text_origin_y = ($originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height); |
---|
1197 | break; |
---|
1198 | |
---|
1199 | case 'C': |
---|
1200 | $text_origin_x = ($originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2)); |
---|
1201 | $text_origin_y = ($originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height); |
---|
1202 | break; |
---|
1203 | |
---|
1204 | case 'TL': |
---|
1205 | $text_origin_x = $margin + $originOffsetX; |
---|
1206 | $text_origin_y = $char_height + $margin + $originOffsetY; |
---|
1207 | break; |
---|
1208 | |
---|
1209 | case 'TR': |
---|
1210 | $text_origin_x = ($originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin); |
---|
1211 | $text_origin_y = $char_height + $margin + $originOffsetY; |
---|
1212 | break; |
---|
1213 | |
---|
1214 | case 'BL': |
---|
1215 | $text_origin_x = $margin + $originOffsetX; |
---|
1216 | $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; |
---|
1217 | break; |
---|
1218 | |
---|
1219 | case 'BR': |
---|
1220 | default: |
---|
1221 | $text_origin_x = ($originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin); |
---|
1222 | $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; |
---|
1223 | break; |
---|
1224 | } |
---|
1225 | |
---|
1226 | //ImageRectangle($gdimg, $text_origin_x + $min_x, $text_origin_y + $TTFbox[1], $text_origin_x + $min_x + $text_width, $text_origin_y + $TTFbox[1] - $text_height, $letter_color_text); |
---|
1227 | if (phpthumb_functions::IsHexColor($bg_color)) { |
---|
1228 | $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); |
---|
1229 | $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, $bg_color, false, $text_background_alpha); |
---|
1230 | } else { |
---|
1231 | $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, 'FFFFFF', false, 127); |
---|
1232 | } |
---|
1233 | $x1 = $text_origin_x + $min_x; |
---|
1234 | $y1 = $text_origin_y + $TTFbox[1]; |
---|
1235 | $x2 = $text_origin_x + $min_x + $text_width; |
---|
1236 | $y2 = $text_origin_y + $TTFbox[1] - $text_height; |
---|
1237 | $x_TL = preg_match('#x#i', $fillextend) ? 0 : min($x1, $x2); |
---|
1238 | $y_TL = preg_match('#y#i', $fillextend) ? 0 : min($y1, $y2); |
---|
1239 | $x_BR = preg_match('#x#i', $fillextend) ? ImageSX($gdimg) : max($x1, $x2); |
---|
1240 | $y_BR = preg_match('#y#i', $fillextend) ? ImageSY($gdimg) : max($y1, $y2); |
---|
1241 | //while ($y_BR > ImageSY($gdimg)) { |
---|
1242 | // $y_TL--; |
---|
1243 | // $y_BR--; |
---|
1244 | // $text_origin_y--; |
---|
1245 | //} |
---|
1246 | $this->DebugMessage('WatermarkText() calling ImageFilledRectangle($gdimg, '.$x_TL.', '.$y_TL.', '.$x_BR.', '.$y_BR.', $text_color_background)', __FILE__, __LINE__); |
---|
1247 | ImageFilledRectangle($gdimg, $x_TL, $y_TL, $x_BR, $y_BR, $text_color_background); |
---|
1248 | |
---|
1249 | // end block for background color only |
---|
1250 | |
---|
1251 | |
---|
1252 | $y_offset = 0; |
---|
1253 | foreach ($textlines as $dummy => $line) { |
---|
1254 | |
---|
1255 | $TTFboxLine = ImageTTFbBox($size, $angle, $ttffont, $line); |
---|
1256 | $min_x_line = min($TTFboxLine[0], $TTFboxLine[2], $TTFboxLine[4], $TTFboxLine[6]); |
---|
1257 | $max_x_line = max($TTFboxLine[0], $TTFboxLine[2], $TTFboxLine[4], $TTFboxLine[6]); |
---|
1258 | //$text_width = round($max_x - $min_x + ($size * 0.5)); |
---|
1259 | $text_width_line = round($max_x_line - $min_x_line); |
---|
1260 | |
---|
1261 | $min_y_line = min($TTFboxLine[1], $TTFboxLine[3], $TTFboxLine[5], $TTFboxLine[7]); |
---|
1262 | $max_y_line = max($TTFboxLine[1], $TTFboxLine[3], $TTFboxLine[5], $TTFboxLine[7]); |
---|
1263 | //$text_height = round($max_y - $min_y + ($size * 0.5)); |
---|
1264 | $text_height_line = round($max_y_line - $min_y_line); |
---|
1265 | |
---|
1266 | switch ($alignment) { |
---|
1267 | // $text_origin_y set above, just re-set $text_origin_x here as needed |
---|
1268 | |
---|
1269 | case 'L': |
---|
1270 | case 'TL': |
---|
1271 | case 'BL': |
---|
1272 | // no change neccesary |
---|
1273 | break; |
---|
1274 | |
---|
1275 | case 'C': |
---|
1276 | case 'T': |
---|
1277 | case 'B': |
---|
1278 | $text_origin_x = ($originOffsetX ? $originOffsetX - round($text_width_line / 2) : round((ImageSX($gdimg) - $text_width_line) / 2)); |
---|
1279 | break; |
---|
1280 | |
---|
1281 | case 'R': |
---|
1282 | case 'TR': |
---|
1283 | case 'BR': |
---|
1284 | $text_origin_x = ($originOffsetX ? $originOffsetX - $text_width_line : ImageSX($gdimg) - $text_width_line + $TTFbox[0] - $min_x + round($size * 0.25) - $margin); |
---|
1285 | break; |
---|
1286 | } |
---|
1287 | |
---|
1288 | //ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); |
---|
1289 | $this->DebugMessage('WatermarkText() calling ImageTTFtext($gdimg, '.$size.', '.$angle.', '.$text_origin_x.', '.($text_origin_y + $y_offset).', $letter_color_text, '.$ttffont.', '.$line.')', __FILE__, __LINE__); |
---|
1290 | ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y + $y_offset, $letter_color_text, $ttffont, $line); |
---|
1291 | |
---|
1292 | $y_offset += $char_height; |
---|
1293 | } |
---|
1294 | |
---|
1295 | } |
---|
1296 | return true; |
---|
1297 | |
---|
1298 | } else { |
---|
1299 | |
---|
1300 | $size = min(5, max(1, $size)); |
---|
1301 | $this->DebugMessage('Using built-in font (size='.$size.') for text watermark'.($ttffont ? ' because $ttffont !is_readable('.$ttffont.')' : ''), __FILE__, __LINE__); |
---|
1302 | |
---|
1303 | $text_width = 0; |
---|
1304 | $text_height = 0; |
---|
1305 | foreach ($textlines as $dummy => $line) { |
---|
1306 | $text_width = max($text_width, ImageFontWidth($size) * strlen($line)); |
---|
1307 | $text_height += ImageFontHeight($size); |
---|
1308 | } |
---|
1309 | if ($img_watermark = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { |
---|
1310 | ImageAlphaBlending($img_watermark, false); |
---|
1311 | if (phpthumb_functions::IsHexColor($bg_color)) { |
---|
1312 | $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); |
---|
1313 | $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, $bg_color, false, $text_background_alpha); |
---|
1314 | } else { |
---|
1315 | $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, 'FFFFFF', false, 127); |
---|
1316 | } |
---|
1317 | $this->DebugMessage('WatermarkText() calling ImageFilledRectangle($img_watermark, 0, 0, '.ImageSX($img_watermark).', '.ImageSY($img_watermark).', $text_color_background)', __FILE__, __LINE__); |
---|
1318 | ImageFilledRectangle($img_watermark, 0, 0, ImageSX($img_watermark), ImageSY($img_watermark), $text_color_background); |
---|
1319 | |
---|
1320 | if ($angle && function_exists('ImageRotate')) { |
---|
1321 | // using $img_watermark_mask is pointless if ImageRotate function isn't available |
---|
1322 | if ($img_watermark_mask = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { |
---|
1323 | $mask_color_background = ImageColorAllocate($img_watermark_mask, 0, 0, 0); |
---|
1324 | ImageAlphaBlending($img_watermark_mask, false); |
---|
1325 | ImageFilledRectangle($img_watermark_mask, 0, 0, ImageSX($img_watermark_mask), ImageSY($img_watermark_mask), $mask_color_background); |
---|
1326 | $mask_color_watermark = ImageColorAllocate($img_watermark_mask, 255, 255, 255); |
---|
1327 | } |
---|
1328 | } |
---|
1329 | |
---|
1330 | $text_color_watermark = phpthumb_functions::ImageHexColorAllocate($img_watermark, $hex_color); |
---|
1331 | foreach ($textlines as $key => $line) { |
---|
1332 | switch ($alignment) { |
---|
1333 | case 'C': |
---|
1334 | $x_offset = round(($text_width - (ImageFontWidth($size) * strlen($line))) / 2); |
---|
1335 | $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; |
---|
1336 | $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; |
---|
1337 | break; |
---|
1338 | |
---|
1339 | case 'T': |
---|
1340 | $x_offset = round(($text_width - (ImageFontWidth($size) * strlen($line))) / 2); |
---|
1341 | $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; |
---|
1342 | $originOffsetY = $margin; |
---|
1343 | break; |
---|
1344 | |
---|
1345 | case 'B': |
---|
1346 | $x_offset = round(($text_width - (ImageFontWidth($size) * strlen($line))) / 2); |
---|
1347 | $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; |
---|
1348 | $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; |
---|
1349 | break; |
---|
1350 | |
---|
1351 | case 'L': |
---|
1352 | $x_offset = 0; |
---|
1353 | $originOffsetX = $margin; |
---|
1354 | $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; |
---|
1355 | break; |
---|
1356 | |
---|
1357 | case 'TL': |
---|
1358 | $x_offset = 0; |
---|
1359 | $originOffsetX = $margin; |
---|
1360 | $originOffsetY = $margin; |
---|
1361 | break; |
---|
1362 | |
---|
1363 | case 'BL': |
---|
1364 | $x_offset = 0; |
---|
1365 | $originOffsetX = $margin; |
---|
1366 | $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; |
---|
1367 | break; |
---|
1368 | |
---|
1369 | case 'R': |
---|
1370 | $x_offset = $text_width - (ImageFontWidth($size) * strlen($line)); |
---|
1371 | $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; |
---|
1372 | $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; |
---|
1373 | break; |
---|
1374 | |
---|
1375 | case 'TR': |
---|
1376 | $x_offset = $text_width - (ImageFontWidth($size) * strlen($line)); |
---|
1377 | $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; |
---|
1378 | $originOffsetY = $margin; |
---|
1379 | break; |
---|
1380 | |
---|
1381 | case 'BR': |
---|
1382 | default: |
---|
1383 | $x_offset = $text_width - (ImageFontWidth($size) * strlen($line)); |
---|
1384 | $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; |
---|
1385 | $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; |
---|
1386 | break; |
---|
1387 | } |
---|
1388 | $this->DebugMessage('WatermarkText() calling ImageString($img_watermark, '.$size.', '.$x_offset.', '.($key * ImageFontHeight($size)).', '.$line.', $text_color_watermark)', __FILE__, __LINE__); |
---|
1389 | ImageString($img_watermark, $size, $x_offset, $key * ImageFontHeight($size), $line, $text_color_watermark); |
---|
1390 | if ($angle && $img_watermark_mask) { |
---|
1391 | $this->DebugMessage('WatermarkText() calling ImageString($img_watermark_mask, '.$size.', '.$x_offset.', '.($key * ImageFontHeight($size)).', '.$text.', $mask_color_watermark)', __FILE__, __LINE__); |
---|
1392 | ImageString($img_watermark_mask, $size, $x_offset, $key * ImageFontHeight($size), $text, $mask_color_watermark); |
---|
1393 | } |
---|
1394 | } |
---|
1395 | if ($angle && $img_watermark_mask) { |
---|
1396 | $img_watermark = ImageRotate($img_watermark, $angle, $text_color_background); |
---|
1397 | $img_watermark_mask = ImageRotate($img_watermark_mask, $angle, $mask_color_background); |
---|
1398 | phpthumb_filters::ApplyMask($img_watermark_mask, $img_watermark); |
---|
1399 | } |
---|
1400 | //phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, $alignment, $opacity, $margin); |
---|
1401 | $this->DebugMessage('WatermarkText() calling phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, '.($originOffsetX.'x'.$originOffsetY).', '.$opacity.', 0)', __FILE__, __LINE__); |
---|
1402 | phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, $originOffsetX.'x'.$originOffsetY, $opacity, 0); |
---|
1403 | ImageDestroy($img_watermark); |
---|
1404 | return true; |
---|
1405 | } |
---|
1406 | |
---|
1407 | } |
---|
1408 | return false; |
---|
1409 | } |
---|
1410 | |
---|
1411 | |
---|
1412 | function WatermarkOverlay(&$gdimg_dest, &$img_watermark, $alignment='*', $opacity=50, $margin_x=5, $margin_y=null) { |
---|
1413 | |
---|
1414 | if (is_resource($gdimg_dest) && is_resource($img_watermark)) { |
---|
1415 | $watermark_source_x = 0; |
---|
1416 | $watermark_source_y = 0; |
---|
1417 | $img_source_width = ImageSX($gdimg_dest); |
---|
1418 | $img_source_height = ImageSY($gdimg_dest); |
---|
1419 | $watermark_source_width = ImageSX($img_watermark); |
---|
1420 | $watermark_source_height = ImageSY($img_watermark); |
---|
1421 | $watermark_opacity_percent = max(0, min(100, $opacity)); |
---|
1422 | $margin_y = (is_null($margin_y) ? $margin_x : $margin_y); |
---|
1423 | $watermark_margin_x = ((($margin_x > 0) && ($margin_x < 1)) ? round((1 - $margin_x) * $img_source_width) : $margin_x); |
---|
1424 | $watermark_margin_y = ((($margin_y > 0) && ($margin_y < 1)) ? round((1 - $margin_y) * $img_source_height) : $margin_y); |
---|
1425 | if (preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)$#i', $alignment, $matches)) { |
---|
1426 | $watermark_destination_x = intval($matches[1]); |
---|
1427 | $watermark_destination_y = intval($matches[2]); |
---|
1428 | } else { |
---|
1429 | switch ($alignment) { |
---|
1430 | case '*': |
---|
1431 | if ($gdimg_tiledwatermark = phpthumb_functions::ImageCreateFunction($img_source_width, $img_source_height)) { |
---|
1432 | |
---|
1433 | ImageAlphaBlending($gdimg_tiledwatermark, false); |
---|
1434 | ImageSaveAlpha($gdimg_tiledwatermark, true); |
---|
1435 | $text_color_transparent = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_tiledwatermark, 255, 0, 255, 127); |
---|
1436 | ImageFill($gdimg_tiledwatermark, 0, 0, $text_color_transparent); |
---|
1437 | |
---|
1438 | // set the tiled image transparent color to whatever the untiled image transparency index is |
---|
1439 | // ImageColorTransparent($gdimg_tiledwatermark, ImageColorTransparent($img_watermark)); |
---|
1440 | |
---|
1441 | // a "cleaner" way of doing it, but can't handle the margin feature :( |
---|
1442 | // ImageSetTile($gdimg_tiledwatermark, $img_watermark); |
---|
1443 | // ImageFill($gdimg_tiledwatermark, 0, 0, IMG_COLOR_TILED); |
---|
1444 | // break; |
---|
1445 | |
---|
1446 | // ImageFill($gdimg_tiledwatermark, 0, 0, ImageColorTransparent($gdimg_tiledwatermark)); |
---|
1447 | // tile the image as many times as can fit |
---|
1448 | for ($x = $watermark_margin_x; $x < ($img_source_width + $watermark_source_width); $x += ($watermark_source_width + $watermark_margin_x)) { |
---|
1449 | for ($y = $watermark_margin_y; $y < ($img_source_height + $watermark_source_height); $y += ($watermark_source_height + $watermark_margin_y)) { |
---|
1450 | ImageCopy( |
---|
1451 | $gdimg_tiledwatermark, |
---|
1452 | $img_watermark, |
---|
1453 | $x, |
---|
1454 | $y, |
---|
1455 | 0, |
---|
1456 | 0, |
---|
1457 | min($watermark_source_width, $img_source_width - $x - $watermark_margin_x), |
---|
1458 | min($watermark_source_height, $img_source_height - $y - $watermark_margin_y) |
---|
1459 | ); |
---|
1460 | } |
---|
1461 | } |
---|
1462 | |
---|
1463 | $watermark_source_width = ImageSX($gdimg_tiledwatermark); |
---|
1464 | $watermark_source_height = ImageSY($gdimg_tiledwatermark); |
---|
1465 | $watermark_destination_x = 0; |
---|
1466 | $watermark_destination_y = 0; |
---|
1467 | |
---|
1468 | ImageDestroy($img_watermark); |
---|
1469 | $img_watermark = $gdimg_tiledwatermark; |
---|
1470 | } |
---|
1471 | break; |
---|
1472 | |
---|
1473 | case 'T': |
---|
1474 | $watermark_destination_x = round((($img_source_width / 2) - ($watermark_source_width / 2)) + $watermark_margin_x); |
---|
1475 | $watermark_destination_y = $watermark_margin_y; |
---|
1476 | break; |
---|
1477 | |
---|
1478 | case 'B': |
---|
1479 | $watermark_destination_x = round((($img_source_width / 2) - ($watermark_source_width / 2)) + $watermark_margin_x); |
---|
1480 | $watermark_destination_y = $img_source_height - $watermark_source_height - $watermark_margin_y; |
---|
1481 | break; |
---|
1482 | |
---|
1483 | case 'L': |
---|
1484 | $watermark_destination_x = $watermark_margin_x; |
---|
1485 | $watermark_destination_y = round((($img_source_height / 2) - ($watermark_source_height / 2)) + $watermark_margin_y); |
---|
1486 | break; |
---|
1487 | |
---|
1488 | case 'R': |
---|
1489 | $watermark_destination_x = $img_source_width - $watermark_source_width - $watermark_margin_x; |
---|
1490 | $watermark_destination_y = round((($img_source_height / 2) - ($watermark_source_height / 2)) + $watermark_margin_y); |
---|
1491 | break; |
---|
1492 | |
---|
1493 | case 'C': |
---|
1494 | $watermark_destination_x = round(($img_source_width / 2) - ($watermark_source_width / 2)); |
---|
1495 | $watermark_destination_y = round(($img_source_height / 2) - ($watermark_source_height / 2)); |
---|
1496 | break; |
---|
1497 | |
---|
1498 | case 'TL': |
---|
1499 | $watermark_destination_x = $watermark_margin_x; |
---|
1500 | $watermark_destination_y = $watermark_margin_y; |
---|
1501 | break; |
---|
1502 | |
---|
1503 | case 'TR': |
---|
1504 | $watermark_destination_x = $img_source_width - $watermark_source_width - $watermark_margin_x; |
---|
1505 | $watermark_destination_y = $watermark_margin_y; |
---|
1506 | break; |
---|
1507 | |
---|
1508 | case 'BL': |
---|
1509 | //echo '<pre>'; |
---|
1510 | ////var_dump($watermark_destination_x); |
---|
1511 | ////var_dump($watermark_destination_y); |
---|
1512 | //var_dump($watermark_margin_x); |
---|
1513 | //var_dump($img_source_height); |
---|
1514 | //var_dump($watermark_source_height); |
---|
1515 | //var_dump($watermark_margin_y); |
---|
1516 | $watermark_destination_x = $watermark_margin_x; |
---|
1517 | $watermark_destination_y = $img_source_height - $watermark_source_height - $watermark_margin_y; |
---|
1518 | break; |
---|
1519 | |
---|
1520 | case 'BR': |
---|
1521 | default: |
---|
1522 | $watermark_destination_x = $img_source_width - $watermark_source_width - $watermark_margin_x; |
---|
1523 | $watermark_destination_y = $img_source_height - $watermark_source_height - $watermark_margin_y; |
---|
1524 | break; |
---|
1525 | } |
---|
1526 | } |
---|
1527 | ImageAlphaBlending($gdimg_dest, false); |
---|
1528 | ImageSaveAlpha($gdimg_dest, true); |
---|
1529 | ImageSaveAlpha($img_watermark, true); |
---|
1530 | phpthumb_functions::ImageCopyRespectAlpha($gdimg_dest, $img_watermark, $watermark_destination_x, $watermark_destination_y, 0, 0, $watermark_source_width, $watermark_source_height, $watermark_opacity_percent); |
---|
1531 | |
---|
1532 | return true; |
---|
1533 | } |
---|
1534 | return false; |
---|
1535 | } |
---|
1536 | |
---|
1537 | |
---|
1538 | function DebugMessage($message, $file='', $line='') { |
---|
1539 | if (is_object($this->phpThumbObject)) { |
---|
1540 | return $this->phpThumbObject->DebugMessage($message, $file, $line); |
---|
1541 | } |
---|
1542 | return false; |
---|
1543 | } |
---|
1544 | } |
---|
1545 | |
---|
1546 | ?> |
---|