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Code source de Serendipity 1.2 |
1 <?php 2 /************************************************** 3 * imgedit.inc.php 4 * 2003-10-17 5 * www.sonnd.com / www.supergarv.de 6 * 7 * COPYRIGHT (C) BY sonnd / Garvin Hicking 8 * Published as LGPL. Copyright notice has to stay in effect. 9 **************************************************/ 10 11 class imgedit { 12 // Needed variables. 13 var $orientation_available; 14 var $real_img_name, $real_img_info, $real_img_width, $real_img_height, $http_img_name; 15 var $img_width, $img_height, $img_name; 16 var $zoombox_width; 17 var $area_border, $area_width, $area_height, $inner_area_x, $inner_area_y; 18 var $harea_width, $harea_height, $harea_img_name, $harea_visibility; 19 var $varea_width, $varea_height, $varea_img_name, $varea_visibility; 20 var $ratio; 21 var $overlay_clip_top, $overlay_clip_bottom, $overlay_clip_left, $overlay_clip_right; 22 var $slice_from_x, $slice_from_y, $slice_to_x, $slice_to_y; 23 var $output_template = ''; 24 var $imgedit_smarty = array(); 25 26 // Helper function to cycle through an array. Strips of "_x" and "_y" coordinates if an 'input type="image"' 27 // variable has been submitted. 28 function makeImgComp(&$array) { 29 foreach($array AS $key => $val) { 30 if (is_array($val)) { 31 $this->makeImgComp($array[$key]); 32 } elseif (preg_match('@^.*_(x|y)$@', $key)) { 33 $array[preg_replace('@^(.*)_(x|y)$@', '\1', $key)] = $val; 34 } 35 } 36 37 return true; 38 } 39 40 // Constructor. 41 function imgedit($img_name, $http_img_name) { 42 global $serendipity; 43 $this->makeImgComp($_REQUEST); 44 45 // Store the given variables 46 $this->real_img_name = $this->img_name = $img_name; 47 $this->real_img_info = getimagesize($this->real_img_name); 48 $this->real_img_width = $this->real_img_info[0]; 49 $this->real_img_height = $this->real_img_info[1]; 50 51 $this->http_img_name = $http_img_name; 52 53 // Set even more variables 54 $this->setDefaults(); 55 56 return true; 57 } 58 59 // The main logic 60 function main() { 61 62 // 1. Parse the $_REQUEST vars. 63 $this->parseRequest(); 64 65 // 2. Get the current size of the cropping area 66 $this->getCurrentArea(); 67 68 // 3. Parse any actions 69 $this->parseRequestActions(); 70 71 // 4. Valide the results of any actions 72 $this->validateCoordinates(); 73 74 // 5. Populate the template 75 $this->setVars(); 76 77 return true; 78 } 79 80 // Sets default vars. 81 function setDefaults() { 82 $this->orientation_available = true; 83 84 $this->img_width = $this->real_img_width; 85 $this->img_height = $this->real_img_height; 86 $this->img_name = $this->real_img_name; 87 88 $this->zoombox_width = 100; 89 $this->area_border = 6; 90 91 // Set values if they haven't been submitted yet. 92 if (!isset($_REQUEST['area_orientation']) || ($_REQUEST['area_orientation'] != 'h' && $_REQUEST['area_orientation'] != 'v')) { 93 $_REQUEST['area_orientation'] = 'h'; 94 } 95 96 if (!isset($_REQUEST['autoguess_clicked'])) { 97 $_REQUEST['autoguess_clicked'] = 'false'; 98 } 99 100 if (!isset($_REQUEST['zoombox_x'])) { 101 $_REQUEST['zoombox_x'] = -$this->area_border; 102 } 103 104 if (!isset($_REQUEST['zoombox_y'])) { 105 $_REQUEST['zoombox_y'] = -$this->area_border; 106 } 107 108 if (!isset($_REQUEST['move_increase'])) { 109 $_REQUEST['move_increase'] = 8; 110 } else { 111 $_REQUEST['move_increase'] = intval($_REQUEST['move_increase']); 112 } 113 114 return true; 115 } 116 117 // Parse the $_REQUEST vars 118 function parseRequest() { 119 if (isset($_REQUEST['toggle_area_orientation'])) { 120 if ($_REQUEST['area_orientation'] == 'h') { 121 $_REQUEST['area_orientation'] = 'v'; 122 } else { 123 $_REQUEST['area_orientation'] = 'h'; 124 } 125 } 126 127 if (isset($_REQUEST['zoombox_factor'])) { 128 $_REQUEST['zoombox_factor'] = floatval($_REQUEST['zoombox_factor']); 129 } else { 130 $_REQUEST['zoombox_factor'] = 1; 131 } 132 133 if (isset($_REQUEST['action']['enlarge'])) { 134 $_REQUEST['zoombox_factor'] += 0.1; 135 } elseif (isset($_REQUEST['action']['reduce'])) { 136 $_REQUEST['zoombox_factor'] -= 0.1; 137 } 138 139 if ($_REQUEST['zoombox_factor'] > 3) { 140 $_REQUEST['zoombox_factor'] = 3; 141 } elseif ($_REQUEST['zoombox_factor'] < 0.1) { 142 $_REQUEST['zoombox_factor'] = 0.1; 143 } 144 145 if (isset($_REQUEST['action']['moveup'])) { 146 $_REQUEST['zoombox_y'] -= $_REQUEST['move_increase']; 147 } elseif (isset($_REQUEST['action']['movedown'])) { 148 $_REQUEST['zoombox_y'] += $_REQUEST['move_increase']; 149 } elseif (isset($_REQUEST['action']['moveleft'])) { 150 $_REQUEST['zoombox_x'] -= $_REQUEST['move_increase']; 151 } elseif (isset($_REQUEST['action']['moveright'])) { 152 $_REQUEST['zoombox_x'] += $_REQUEST['move_increase']; 153 } 154 155 return true; 156 } 157 158 // Fit an image inside the cropping area. 159 function imgFit($orientation) { 160 if ($orientation == 'height') { 161 $this->imgFitHeight(); 162 } else { 163 $this->imgFitWidth(); 164 } 165 166 $_REQUEST['zoombox_factor'] = $this->ratio; 167 $_REQUEST['autoguess_clicked'] = 'true'; 168 $_REQUEST['zoombox_x'] = -$this->area_border; 169 $_REQUEST['zoombox_y'] = -$this->area_border; 170 171 return true; 172 } 173 174 // Fit an image, using height as fixed value 175 function imgFitHeight() { 176 $this->img_height = $this->inner_area_y - $this->area_border; 177 $this->ratio = round($this->img_height / $this->real_img_height, 3); 178 $this->img_width = intval(round($this->real_img_width * $this->ratio)); 179 180 return true; 181 } 182 183 // Fit an image, using width as fixed value 184 function imgFitWidth() { 185 $this->img_width = $this->inner_area_x - $this->area_border; 186 $this->ratio = round($this->img_width / $this->real_img_width, 3); 187 $this->img_height = intval(round($this->real_img_height * $this->ratio)); 188 189 return true; 190 } 191 192 // Parse actions that were submitted 193 function parseRequestActions() { 194 global $serendipity; 195 196 if (isset($_REQUEST['autoscale'])) { 197 198 if ($this->real_img_width > $this->real_img_height) { 199 // The image is a horizontal one. Resize height to fit. 200 $this->imgFit('height'); 201 } else { 202 // The image is a vertical one. Resize width to fit. 203 $this->imgFit('width'); 204 } 205 206 207 } elseif (isset($_REQUEST['scale'])) { 208 209 210 if ($this->real_img_width > $this->real_img_height) { 211 // The image is a horizontal one. Resize width to fit. 212 $this->imgFit('width'); 213 } else { 214 // The image is a vertical one. Resize height to fit. 215 $this->imgFit('height'); 216 } 217 218 } else { 219 220 $this->img_width = intval(round($this->real_img_width * $_REQUEST['zoombox_factor'])); 221 $this->img_height = intval(round($this->real_img_height * $_REQUEST['zoombox_factor'])); 222 223 } 224 225 226 // Check which template to use 227 if (isset($_REQUEST['crop'])) { 228 $this->output_template = 'admin/media_imgedit_done.tpl'; 229 } else { 230 $this->output_template = 'admin/media_imgedit.tpl'; 231 if ($this->orientation_available) { 232 $this->imgedit_smarty['orientation_available'] = true; 233 } 234 } 235 236 // The final action. Cropping will take place. 237 if (isset($_REQUEST['crop'])) { 238 $new_img_name = $this->img_name . '.tmp'; 239 240 if ($this->img_width <= $this->area_width && $this->img_height <= $this->area_height) { 241 $this->imgedit_smarty['image_no_cut'] = true; 242 243 $new_img_width = $this->img_width; 244 $new_img_height = $this->img_height; 245 } else { 246 $this->imgedit_smarty['image_cut'] = true; 247 248 $new_img_width = $this->area_width - $this->area_border - $this->area_border; 249 $new_img_height = $this->area_height - $this->area_border - $this->area_border; 250 } 251 252 $this->slice_from_x = ($this->area_border + $_REQUEST['zoombox_x']) / $_REQUEST['zoombox_factor']; 253 $this->slice_from_y = ($this->area_border + $_REQUEST['zoombox_y']) / $_REQUEST['zoombox_factor']; 254 255 $slice_width = $new_img_width / $_REQUEST['zoombox_factor']; 256 $slice_height = $new_img_height / $_REQUEST['zoombox_factor']; 257 258 $this->slice_to_x = $this->slice_from_x + $this->slice_width; 259 $this->slice_to_y = $this->slice_from_y + $this->slice_height; 260 261 // TODO: 262 // - Operate also on PNG, TIFF etc. 263 // - Support image magick 264 // - Save file as new image! 265 // - Optionally ask whether to only make a thumbnail from the extracted portion 266 267 // PHP: int imagecopyresampled ( resource dst_im, resource src_im, int dstX, int dstY, int srcX, int srcY, int dstW, int dstH, int srcW, int srcH) 268 // Open the user's image. 269 $img_res = imagecreatefromjpeg($this->img_name); 270 271 // Init a blank picture to save the cropped image in. 272 $new_img_res = imagecreatetruecolor($new_img_width, $new_img_height); 273 274 // Crop the image based on user input, save the resulting image. If either action fails, report an error. 275 if (!imagecopyresampled($new_img_res, $img_res, 0, 0, $this->slice_from_x, $this->slice_from_y, $new_img_width, $new_img_height, $slice_width, $slice_height) || 276 !imageJpeg($new_img_res, $new_img_name, 90)) { 277 278 $this->imgedit_smarty['image_error'] = true; 279 } 280 281 $backup = $this->increment($this->img_name); 282 rename($this->img_name, $backup . '.backup'); 283 rename($new_img_name, $this->img_name); 284 $http_new_file = preg_replace('@^' . preg_quote($serendipity['serendipityPath'] . $serendipity['uploadPath']) . '@', '', $this->img_name); 285 serendipity_makeThumbnail(basename($http_new_file), dirname($http_new_file) . '/'); 286 287 $this->img_name = $new_img_name; 288 $this->img_width = $new_img_width; 289 $this->img_height = $new_img_height; 290 } 291 292 return true; 293 } 294 295 function increment($fullfile) { 296 $d = dirname($fullfile) . '/'; 297 $f = basename($fullfile); 298 299 $f = time() . '.' . $f; 300 301 return $d . $f; 302 } 303 304 // Checks if any coordinates are out of allowed range 305 function validateCoordinates() { 306 if ($this->img_width > $this->area_width) { 307 $c_img_width = $this->img_width; 308 $ca_img_width = $this->area_width; 309 $x_area_border = $this->area_border; 310 } else { 311 $c_img_width = $this->area_width; 312 $ca_img_width = $this->img_width; 313 $x_area_border = -$this->area_border; 314 } 315 316 if ($this->img_height > $this->area_height) { 317 $c_img_height = $this->img_height; 318 $ca_img_height = $this->area_height; 319 $y_area_border = $this->area_border; 320 } else { 321 $c_img_height = $this->area_height; 322 $ca_img_height = $this->img_height; 323 $y_area_border = -$this->area_border; 324 } 325 326 if ($_REQUEST['zoombox_x'] < (0 - $this->area_border)) { 327 $_REQUEST['zoombox_x'] = 0 - $this->area_border; 328 } elseif ($_REQUEST['zoombox_x'] > ($this->img_width - $ca_img_width + $x_area_border)) { 329 $_REQUEST['zoombox_x'] = $this->img_width - $ca_img_width + $x_area_border; 330 } 331 332 if ($_REQUEST['zoombox_y'] < (0 - $this->area_border)) { 333 $_REQUEST['zoombox_y'] = 0 - $this->area_border; 334 } elseif ($_REQUEST['zoombox_y'] > ($this->img_height - $ca_img_height + $y_area_border)) { 335 $_REQUEST['zoombox_y'] = $this->img_height - $ca_img_height + $y_area_border; 336 } 337 338 $this->overlay_clip_top += $_REQUEST['zoombox_y']; 339 $this->overlay_clip_bottom += $_REQUEST['zoombox_y']; 340 $this->overlay_clip_left += $_REQUEST['zoombox_x']; 341 $this->overlay_clip_right += $_REQUEST['zoombox_x']; 342 343 return true; 344 } 345 346 // Sets the sizes of the cropping area 347 function setArea($img_name, $orientation = 'h') { 348 global $serendipity; 349 350 $fimg = serendipity_getTemplateFile('admin/img/' . $img_name, 'serendipityPath'); 351 $hfimg = serendipity_getTemplateFile('admin/img/' . $img_name, 'serendipityHTTPPath'); 352 $img_info = getImageSize($fimg); 353 354 if ($orientation == 'h') { 355 $this->harea_width = $img_info[0]; 356 $this->harea_height = $img_info[1]; 357 $this->harea_img_name = $hfimg; 358 } else { 359 $this->varea_width = $img_info[0]; 360 $this->varea_height = $img_info[1]; 361 $this->varea_img_name = $hfimg; 362 } 363 364 return true; 365 } 366 367 // Get the size of the selected cropping area 368 function getCurrentArea() { 369 if ($_REQUEST['area_orientation'] == 'h') { 370 $this->area_width = $this->harea_width; 371 $this->area_height = $this->harea_height; 372 $this->varea_visibility = 'hidden'; 373 $this->harea_visibility = 'visible'; 374 } else { 375 $this->area_width = $this->varea_width; 376 $this->area_height = $this->varea_height; 377 $this->varea_visibility = 'visible'; 378 $this->harea_visibility = 'hidden'; 379 } 380 381 $this->inner_area_x = $this->area_width - $this->area_border; 382 $this->inner_area_y = $this->area_height - $this->area_border; 383 384 $this->overlay_clip_top = $this->area_border; 385 $this->overlay_clip_right = $this->area_width - $this->area_border; 386 $this->overlay_clip_bottom = $this->area_height - $this->area_border; 387 $this->overlay_clip_left = $this->area_border; 388 389 return true; 390 } 391 392 // Set the template variables 393 function setVars() { 394 395 $this->imgedit_smarty['zoombox_width'] = $this->zoombox_width; 396 $this->imgedit_smarty['zoombox_padding'] = $this->zoombox_width + 20; 397 $this->imgedit_smarty['area_width'] = $this->area_width; 398 $this->imgedit_smarty['area_height'] = $this->area_height; 399 $this->imgedit_smarty['varea_width'] = $this->varea_width; 400 $this->imgedit_smarty['varea_height'] = $this->varea_height; 401 $this->imgedit_smarty['varea_img_name'] = $this->varea_img_name; 402 $this->imgedit_smarty['varea_visibility'] = $this->varea_visibility; 403 $this->imgedit_smarty['harea_width'] = $this->harea_width; 404 $this->imgedit_smarty['harea_height'] = $this->harea_height; 405 $this->imgedit_smarty['harea_img_name'] = $this->harea_img_name; 406 $this->imgedit_smarty['harea_visibility'] = $this->harea_visibility; 407 $this->imgedit_smarty['area_border'] = $this->area_border; 408 $this->imgedit_smarty['refresh_line'] = time(); 409 410 $this->imgedit_smarty['real_img_width'] = $this->real_img_width; 411 $this->imgedit_smarty['real_img_height'] = $this->real_img_height; 412 $this->imgedit_smarty['real_img_name'] = $this->real_img_name; 413 $this->imgedit_smarty['http_img_name'] = $this->http_img_name; 414 415 $this->imgedit_smarty['img_width'] = $this->img_width; 416 $this->imgedit_smarty['img_height'] = $this->img_height; 417 $this->imgedit_smarty['zoom_img_width'] = $this->img_width; 418 $this->imgedit_smarty['zoom_img_height'] = $this->img_height; 419 $this->imgedit_smarty['img_name'] = $this->img_name; 420 421 $this->imgedit_smarty['overlay_clip_top'] = $this->overlay_clip_top; 422 $this->imgedit_smarty['overlay_clip_bottom'] = $this->overlay_clip_bottom; 423 $this->imgedit_smarty['overlay_clip_left'] = $this->overlay_clip_left; 424 $this->imgedit_smarty['overlay_clip_right'] = $this->overlay_clip_right; 425 426 $this->imgedit_smarty['slice_from_x'] = $this->slice_from_x; 427 $this->imgedit_smarty['slice_from_y'] = $this->slice_from_y; 428 $this->imgedit_smarty['slice_to_x'] = $this->slice_to_x; 429 $this->imgedit_smarty['slice_to_y'] = $this->slice_to_y; 430 431 $this->imgedit_smarty['zoombox_x'] = $_REQUEST['zoombox_x']; 432 $this->imgedit_smarty['zoombox_y'] = $_REQUEST['zoombox_y']; 433 $this->imgedit_smarty['zoombox_factor'] = $_REQUEST['zoombox_factor']; 434 435 $this->imgedit_smarty['php_self'] = $_SERVER['PHP_SELF']; 436 $this->imgedit_smarty['area_orientation'] = $_REQUEST['area_orientation']; 437 $this->imgedit_smarty['move_increase'] = $_REQUEST['move_increase']; 438 $this->imgedit_smarty['autoguess_clicked'] = $_REQUEST['autoguess_clicked']; 439 440 $this->imgedit_smarty['my_url'] = htmlspecialchars($_SERVER['REQUEST_URI']); 441 442 if ($_REQUEST['autoguess_clicked'] == 'true') { 443 $this->imgedit_smarty['scale_visibility'] = 'visible'; 444 } else { 445 $this->imgedit_smarty['scale_visibility'] = 'hidden'; 446 } 447 448 return true; 449 } 450 }
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| Généré le : Sat Nov 24 09:00:37 2007 | par Balluche grâce à PHPXref 0.7 |
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