Changeset 766 for branches/0.4/web/addons
- Timestamp:
- 03/28/13 12:43:27 (11 years ago)
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
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branches/0.4/web/addons/job_monarch/libtoga.php
r765 r766 1289 1289 $this->size = $BIG_CLUSTERIMAGE_NODEWIDTH; 1290 1290 1291 $this->drawShadow(); 1291 1292 $this->draw(); 1293 } 1294 1295 function drawShadow() 1296 { 1297 // offset of drop shadow from top left 1298 // 1299 $ds_offset = 5; 1300 1301 // number of steps from black to background color 1302 // 1303 $ds_steps = 15; 1304 1305 // distance between steps 1306 // 1307 $ds_spread = 1; 1308 1309 // define the background color 1310 // 1311 $background = array("r" => 255, "g" => 255, "b" => 255); 1312 1313 // create a new canvas. New canvas dimensions should be larger than the original's 1314 // 1315 $width = $this->size + $ds_offset; 1316 $height = $this->size + $ds_offset; 1317 1318 // determine the offset between colors 1319 // 1320 $step_offset = array("r" => ($background['r'] / $ds_steps), "g" => ($background['g'] / $ds_steps), "b" => ($background['b'] / $ds_steps)); 1321 1322 // calculate and allocate the needed colors 1323 // 1324 $current_color = $background; 1325 1326 for ($i = 0; $i <= $ds_steps ; $i++) 1327 { 1328 $colors[$i] = imagecolorallocate($this->image, round($current_color['r']), round($current_color['g']), round($current_color['b'])); 1329 1330 $current_color['r'] -= $step_offset['r']; 1331 $current_color['g'] -= $step_offset['g']; 1332 $current_color['b'] -= $step_offset['b']; 1333 } 1334 1335 // draw overlapping rectangles to create a drop shadow effect 1336 // 1337 for ($i = 3; $i < count($colors); $i++) 1338 { 1339 imagefilledrectangle( $this->image, ($this->x + $ds_offset), ($this->y + $ds_offset), ($this->x + $width), ($this->y + $height), $colors[$i] ); 1340 $width -= $ds_spread; 1341 $height -= $ds_spread; 1342 } 1292 1343 } 1293 1344
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