mootools,php web-base在线图片编辑器

<?php session_start(); /* processImage.php Copyright (C) 2004-2006 Peter Frueh (http://www.ajaxprogrammer.com/) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Author: based on Peter Frueh's ImageEditor, <http://ajaxprogrammer.com/> modified by Andr� Fiedler, <http://visualdrugs.net> License: GNU lesser general public license. */ // required params: imageName header('Content-Type: text/plain'); $originalDirectory = getcwd().'/original/'; $activeDirectory = getcwd().'/active/'; $editDirectory = getcwd().'/edit/'; $imageName = $_GET['imageName']; $action = $_GET['action']; if(empty($imageName) || !file_exists($originalDirectory.$imageName) || !file_exists($activeDirectory.$imageName) || !file_exists($editDirectory.$imageName)) { echo '({imageFound:false})'; exit; } if(substr($imageName, 0, 32) != session_id()) { copy($originalDirectory.$imageName, $originalDirectory.session_id().'_'.$imageName); copy($originalDirectory.$imageName, $activeDirectory.session_id().'_'.$imageName); copy($originalDirectory.$imageName, $editDirectory.session_id().'_'.$imageName); $imageName = session_id().'_'.$imageName; } switch($action){ case 'viewOriginal': copy($originalDirectory.$imageName, $editDirectory.$imageName); break; case 'viewActive': copy($activeDirectory.$imageName, $editDirectory.$imageName); break; case 'save': copy($editDirectory.$imageName, $activeDirectory.$imageName); break; case 'resize': // additional required params: w, h $out_w = $_GET['w']; $out_h = $_GET['h']; if (!is_numeric($out_w) || $out_w < 1 || $out_w > 2000 || !is_numeric($out_h) || $out_h < 1 || $out_h > 2000) { exit; } list($in_w, $in_h) = getimagesize($editDirectory.$imageName); $in = imagecreatefromjpeg($editDirectory.$imageName); $out = imagecreatetruecolor($out_w, $out_h); imagecopyresampled($out, $in, 0, 0, 0, 0, $out_w, $out_h, $in_w, $in_h); imagejpeg($out, $editDirectory.$imageName, 100); imagedestroy($in); imagedestroy($out); break; case 'rotate': // additional required params: degrees (90, 180 or 270) $degrees = $_GET['degrees']; $in = imagecreatefromjpeg($editDirectory.$imageName); $out = imagerotate($in, $degrees, 0); imagejpeg($out, $editDirectory.$imageName, 100); imagedestroy($in); imagedestroy($out); if (($degrees != 90 && $degrees != 180 && $degrees != 270)) { exit; } $in = imagecreatefromjpeg($editDirectory.$imageName); if ($degrees == 180){ $out = imagerotate($in, $degrees, 180); }else{ // 90 or 270 $x = imagesx($in); $y = imagesy ($in); $max = max($x, $y); $square = imagecreatetruecolor($max, $max); imagecopy($square, $in, 0, 0, 0, 0, $x, $y); $square = imageRotate($square, $degrees, 0); $out = imagecreatetruecolor($y, $x); if ($degrees == 90) { imagecopy($out, $square, 0, 0, 0, $max - $x, $y, $x); } elseif ($degrees == 270) { imagecopy($out, $square, 0, 0, $max - $y, 0, $y, $x); } imagedestroy($square); } imagejpeg($out, $editDirectory.$imageName, 100); imagedestroy($in); imagedestroy($out); break; case 'crop': // additional required params: x, y, w, h $x = $_GET['x']; $y = $_GET['y']; $w = $_GET['w']; $h = $_GET['h']; if (!is_numeric($x) || !is_numeric($y) || !is_numeric($w) || !is_numeric($h)) { exit; } $in = imagecreatefromjpeg($editDirectory.$imageName); $out = imagecreatetruecolor($w, $h); imagecopyresampled($out, $in, 0, 0, $x, $y, $w, $h, $w, $h); imagejpeg($out, $editDirectory.$imageName, 100); imagedestroy($in); imagedestroy($out); break; case 'reduceSaturation': $in = imagecreatefromjpeg($editDirectory.$imageName); $x_in = $_GET['x']; $y_in = $_GET['y']; $w = $_GET['w']; $h = $_GET['h']; for ($x=$x_in; $x<$x_in+$w; $x++) { for ($y=$y_in; $y<$y_in+$h; $y++) { $rgb = imagecolorat($in, $x, $y); $rgb = imagecolorsforindex($in, $rgb); $grey = ($rgb['red'] + $rgb['green'] + $rgb['blue']) / 3; imagesetpixel($in, $x, $y, imagecolorallocate($in, $grey, $grey, $grey)); } } imagejpeg($in, $editDirectory.$imageName, 100); imagedestroy($in); break; case 'invert': $in = imagecreatefromjpeg($editDirectory.$imageName); $x_in = $_GET['x']; $y_in = $_GET['y']; $w = $_GET['w']; $h = $_GET['h']; for ($x=$x_in; $x<$x_in+$w; $x++) { for ($y=$y_in; $y<$y_in+$h; $y++) { $rgb = imagecolorat($in, $x, $y); $rgb = imagecolorsforindex($in, $rgb); $r = 255 - $rgb['red']; $g = 255 - $rgb['green']; $b = 255 - $rgb['blue']; imagesetpixel($in, $x, $y, imagecolorallocate($in, $r, $g, $b)); } } imagejpeg($in, $editDirectory.$imageName, 100); imagedestroy($in); break; case 'sharpen': $k = 0.3; // Sharpen (max 1.0) $in = imagecreatefromjpeg($editDirectory.$imageName); $w = imagesx($in); $h = imagesy ($in); $x_in = $_GET['x']; $y_in = $_GET['y']; $w_in = $_GET['w']; $h_in = $_GET['h']; $out = imagecreatetruecolor($w_in-2, $h_in-2); for($x = $x_in+1; $x < $x_in+$w_in-1; $x++) { for($y = $y_in+1; $y < $y_in+$h_in-1; $y++) { $rgb[1][0] = imagecolorat($in, $x, $y-1); $rgb[0][1] = imagecolorat($in, $x-1, $y); $rgb[1][1] = imagecolorat($in, $x, $y); $rgb[2][1] = imagecolorat($in, $x+1, $y); $rgb[1][2] = imagecolorat($in, $x, $y+1); $r = -$k *(($rgb[1][0] >> 16) & 0xFF) + -$k *(($rgb[0][1] >> 16) & 0xFF) + (1+4*$k) *(($rgb[1][1] >> 16) & 0xFF) + -$k *(($rgb[2][1] >> 16) & 0xFF) + -$k *(($rgb[1][2] >> 16) & 0xFF) ; $g = -$k *(($rgb[1][0] >> 8) & 0xFF) + -$k *(($rgb[0][1] >> 8) & 0xFF) + (1+4*$k) *(($rgb[1][1] >> 8) & 0xFF) + -$k *(($rgb[2][1] >> 8) & 0xFF) + -$k *(($rgb[1][2] >> 8) & 0xFF) ; $b = -$k *($rgb[1][0] & 0xFF) + -$k *($rgb[0][1] & 0xFF) + (1+4*$k) *($rgb[1][1] & 0xFF) + -$k *($rgb[2][1] & 0xFF) + -$k *($rgb[1][2] & 0xFF) ; $r = min(255, max(0, $r)); $g = min(255, max(0, $g)); $b = min(255, max(0, $b)); if(!isset($cols[$r][$g][$b])) { $cols[$r][$g][$b] = imagecolorallocate($out, $r, $g, $b); } imagesetpixel($out, $x-$x_in-1, $y-$y_in-1, $cols[$r][$g][$b]); } } $out2 = imagecreatetruecolor($w_in, $h_in); imagecopyresized($out2, $out, 0, 0, 0, 0, $w_in, $h_in, $w_in-2, $h_in-2); imagedestroy($out); imagecopy($in, $out2, $x_in, $y_in, 0, 0, $w_in, $h_in); imagedestroy($out2); imagejpeg($in, $editDirectory.$imageName, 100); imagedestroy($in); break; case 'contrast': $brightness=0; $maxb=0; $minb=255; $im = imagecreatefromjpeg($editDirectory.$imageName); $w = imagesx($im); $h = imagesy ($im); for ($x=0; $x<$w; $x++) { for ($y=0; $y<$h; $y++) { $rgb=imagecolorat($im, $x, $y); $rgb=imagecolorsforindex($im, $rgb); $grey=0.2125*$rgb['red']+0.7154*$rgb['green']+0.0721*$rgb['blue']; $brightness+=$grey; if ($grey>$maxb) $maxb=$grey; if ($grey<$minb) $minb=$grey; } } $brightness=$brightness/($w*$h); $minb=$brightness/($brightness-$minb); $maxb=(255-$brightness)/($maxb-$brightness);