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