1 | <?php |
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2 | |
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3 | /*********************************************************************** |
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4 | ** Title.........: ImageMagick Driver |
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5 | ** Version.......: 1.0 |
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6 | ** Author........: Xiang Wei ZHUO <wei@zhuo.org> |
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7 | ** Filename......: IM.php |
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8 | ** Last changed..: 30 Aug 2003 |
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9 | ** Notes.........: Orginal is from PEAR |
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10 | **/ |
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11 | |
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12 | // +----------------------------------------------------------------------+ |
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13 | // | PHP Version 4 | |
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14 | // +----------------------------------------------------------------------+ |
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15 | // | Copyright (c) 1997-2002 The PHP Group | |
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16 | // +----------------------------------------------------------------------+ |
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17 | // | This source file is subject to version 2.02 of the PHP license, | |
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18 | // | that is bundled with this package in the file LICENSE, and is | |
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19 | // | available at through the world-wide-web at | |
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20 | // | http://www.php.net/license/2_02.txt. | |
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21 | // | If you did not receive a copy of the PHP license and are unable to | |
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22 | // | obtain it through the world-wide-web, please send a note to | |
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23 | // | license@php.net so we can mail you a copy immediately. | |
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24 | // +----------------------------------------------------------------------+ |
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25 | // | Authors: Peter Bowyer <peter@mapledesign.co.uk> | |
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26 | // +----------------------------------------------------------------------+ |
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27 | // |
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28 | // |
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29 | // Image Transformation interface using command line ImageMagick |
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30 | // |
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31 | |
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32 | require_once "Transform.php"; |
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33 | |
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34 | Class Image_Transform_Driver_IM extends Image_Transform |
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35 | { |
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36 | /** |
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37 | * associative array commands to be executed |
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38 | * @var array |
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39 | */ |
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40 | var $command = array(); |
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41 | |
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42 | /** |
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43 | * |
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44 | * |
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45 | */ |
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46 | function Image_Transform_Driver_IM() |
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47 | { |
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48 | return true; |
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49 | } // End Image_IM |
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50 | |
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51 | /** |
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52 | * Load image |
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53 | * |
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54 | * @param string filename |
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55 | * |
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56 | * @return mixed none or a PEAR error object on error |
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57 | * @see PEAR::isError() |
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58 | */ |
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59 | function load($image) |
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60 | { |
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61 | |
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62 | $this->uid = md5($_SERVER['REMOTE_ADDR']); |
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63 | /*if (!file_exists($image)) { |
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64 | return PEAR::raiseError('The image file ' . $image . ' does\'t exist', true); |
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65 | }*/ |
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66 | $this->image = $image; |
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67 | $this->_get_image_details($image); |
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68 | } // End load |
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69 | |
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70 | /** |
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71 | * Resize Action |
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72 | * |
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73 | * @param int new_x new width |
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74 | * @param int new_y new height |
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75 | * |
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76 | * @return none |
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77 | * @see PEAR::isError() |
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78 | */ |
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79 | function _resize($new_x, $new_y) |
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80 | { |
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81 | /*if (isset($this->command['resize'])) { |
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82 | return PEAR::raiseError("You cannot scale or resize an image more than once without calling save or display", true); |
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83 | }*/ |
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84 | $this->command['resize'] = "-geometry ${new_x}x${new_y}!"; |
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85 | |
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86 | $this->new_x = $new_x; |
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87 | $this->new_y = $new_y; |
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88 | } // End resize |
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89 | |
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90 | /** |
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91 | * Crop the image |
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92 | * |
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93 | * @param int $crop_x left column of the image |
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94 | * @param int $crop_y top row of the image |
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95 | * @param int $crop_width new cropped image width |
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96 | * @param int $crop_height new cropped image height |
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97 | */ |
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98 | function crop($crop_x, $crop_y, $crop_width, $crop_height) |
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99 | { |
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100 | $this->command['crop'] = "-crop {$crop_width}x{$crop_height}+{$crop_x}+{$crop_y}"; |
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101 | } |
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102 | |
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103 | /** |
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104 | * Flip the image horizontally or vertically |
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105 | * |
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106 | * @param boolean $horizontal true if horizontal flip, vertical otherwise |
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107 | */ |
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108 | function flip($horizontal) |
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109 | { |
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110 | if($horizontal) |
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111 | $this->command['flop'] = "-flop"; |
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112 | else |
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113 | $this->command['flip'] = "-flip"; |
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114 | } |
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115 | /** |
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116 | * rotate |
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117 | * |
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118 | * @param int angle rotation angle |
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119 | * @param array options no option allowed |
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120 | * |
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121 | */ |
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122 | function rotate($angle, $options=null) |
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123 | { |
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124 | if ('-' == $angle{0}) { |
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125 | $angle = 360 - substr($angle, 1); |
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126 | } |
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127 | $this->command['rotate'] = "-rotate $angle"; |
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128 | } // End rotate |
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129 | |
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130 | /** |
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131 | * addText |
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132 | * |
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133 | * @param array options Array contains options |
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134 | * array( |
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135 | * 'text' The string to draw |
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136 | * 'x' Horizontal position |
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137 | * 'y' Vertical Position |
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138 | * 'Color' Font color |
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139 | * 'font' Font to be used |
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140 | * 'size' Size of the fonts in pixel |
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141 | * 'resize_first' Tell if the image has to be resized |
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142 | * before drawing the text |
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143 | * ) |
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144 | * |
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145 | * @return none |
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146 | * @see PEAR::isError() |
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147 | */ |
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148 | function addText($params) |
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149 | { |
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150 | $default_params = array( |
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151 | 'text' => 'This is Text', |
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152 | 'x' => 10, |
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153 | 'y' => 20, |
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154 | 'color' => 'red', |
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155 | 'font' => 'Arial.ttf', |
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156 | 'resize_first' => false // Carry out the scaling of the image before annotation? |
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157 | ); |
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158 | $params = array_merge($default_params, $params); |
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159 | extract($params); |
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160 | if (true === $resize_first) { |
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161 | // Set the key so that this will be the last item in the array |
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162 | $key = 'ztext'; |
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163 | } else { |
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164 | $key = 'text'; |
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165 | } |
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166 | $this->command[$key] = "-font $font -fill $color -draw 'text $x,$y \"$text\"'"; |
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167 | // Producing error: gs: not found gs: not found convert: Postscript delegate failed [No such file or directory]. |
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168 | } // End addText |
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169 | |
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170 | /** |
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171 | * Adjust the image gamma |
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172 | * |
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173 | * @param float $outputgamma |
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174 | * |
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175 | * @return none |
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176 | */ |
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177 | function gamma($outputgamma=1.0) { |
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178 | $this->command['gamma'] = "-gamma $outputgamma"; |
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179 | } |
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180 | |
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181 | /** |
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182 | * Save the image file |
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183 | * |
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184 | * @param $filename string the name of the file to write to |
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185 | * @param $quality quality image dpi, default=75 |
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186 | * @param $type string (JPG,PNG...) |
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187 | * |
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188 | * @return none |
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189 | */ |
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190 | function save($filename, $type='', $quality = 85) |
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191 | { |
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192 | $type == '' ? $this->type : $type; |
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193 | $cmd = '' . IMAGE_TRANSFORM_LIB_PATH . 'convert" ' . implode(' ', $this->command) . " -quality $quality " . ($this->image) . ' ' . ($filename) . ' 2>&1'; |
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194 | |
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195 | //echo $cmd; |
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196 | exec($cmd); |
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197 | } // End save |
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198 | |
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199 | /** |
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200 | * Display image without saving and lose changes |
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201 | * |
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202 | * @param string type (JPG,PNG...); |
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203 | * @param int quality 75 |
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204 | * |
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205 | * @return none |
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206 | */ |
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207 | function display($type = '', $quality = 75) |
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208 | { |
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209 | if ($type == '') { |
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210 | header('Content-type: image/' . $this->type); |
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211 | passthru(IMAGE_TRANSFORM_LIB_PATH . 'convert ' . implode(' ', $this->command) . " -quality $quality " . escapeshellarg($this->image) . ' ' . strtoupper($this->type) . ":-"); |
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212 | } else { |
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213 | header('Content-type: image/' . $type); |
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214 | passthru(IMAGE_TRANSFORM_LIB_PATH . 'convert ' . implode(' ', $this->command) . " -quality $quality " . escapeshellarg($this->image) . ' ' . strtoupper($type) . ":-"); |
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215 | } |
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216 | } |
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217 | |
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218 | |
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219 | /** |
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220 | * Destroy image handle |
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221 | * |
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222 | * @return none |
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223 | */ |
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224 | function free() |
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225 | { |
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226 | return true; |
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227 | } |
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228 | |
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229 | } // End class ImageIM |
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230 | ?> |
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