Ticket #604: jimage.diff

build/manifests/jelix-lib.mn

@@ -247 +247 @@
-  jZipCreator.class.php
-* jZone.class.php
-  jWSDL.class.php
+  jImage.class.php
-
-cd lib/jelix-modules
-  LICENCE

lib/jelix/plugins/tpl/html/function.image.php

@@ -51 +51 @@
- * @param array $params parameters for the url
- */
-function jtpl_function_html_image($tpl, $src, $params=array()) {
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-}
-
-function jtpl_function_html_image_ombre ( $image, $array) {
-
-    // Default
-    $leng = isset($array['soffset'])?$array['soffset']:10;
-    $angle = isset($array['sangle'])?$array['sangle']:135;
-    $flou = isset($array['sblur'])?$array['sblur']:10;
-    $opac = isset($array['sopacity'])?$array['sopacity']:20;
-    $color = isset($array['scolor'])?$array['scolor']:'#000000';
-
-    // Color of the shadow
-    $color = str_replace('#', '', $color);
-    $rgb = array(0,0,0);
-    if (strlen($color) == 6)
-        for ($x=0;$x<3;$x++)
-            $rgb[$x] = hexdec(substr($color,(2*$x),2));
-    else if (strlen($color) == 3)
-        for ($x=0;$x<3;$x++)
-            $rgb[$x] = hexdec(substr($color,(2*$x),1));
-
-    // Gaussian blur parameter
-    $coeffs = array (array ( 1),
-                     array ( 1, 1),
-                     array ( 1, 2, 1),
-                     array ( 1, 3, 3, 1),
-                     array ( 1, 4, 6, 4, 1),
-                     array ( 1, 5, 10, 10, 5, 1),
-                     array ( 1, 6, 15, 20, 15, 6, 1),
-                     array ( 1, 7, 21, 35, 35, 21, 7, 1),
-                     array ( 1, 8, 28, 56, 70, 56, 28, 8, 1),
-                     array ( 1, 9, 36, 84, 126, 126, 84, 36, 9, 1),
-                     array ( 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1),
-                     array ( 1, 11, 55, 165, 330, 462, 462, 330, 165, 55, 11, 1));
-    $sum = pow (2, $flou);
-    $demi = $flou/2;
-
-
-    // Horizontal blur and blur margin
-    $temp1 = imagecreatetruecolor(imagesx($image)+$flou, imagesy($image)+$flou);
-    imagesavealpha($temp1, true);
-    $tp = imagecolorallocatealpha($temp1,0,0,0,127);
-    imagefill($temp1,0,0,$tp);
-
-    for ( $i=0 ; $i < imagesx($temp1) ; $i++ )
-    for ( $j=0 ; $j < imagesy($temp1) ; $j++ ) {
-        $ig = $i-$demi; $jg = $j-$demi; $suma = 0;
-        for ( $k=0 ; $k <= $flou ; $k++ ) {
-            $ik = $ig-$demi+$k;
-            if( $jg<0 || $jg>imagesy($temp1)-$flou-1 ) $alpha = 127;
-            else if( $ik<0 || $ik>imagesx($temp1)-$flou-1 ) $alpha = 127;
-            else $alpha = (imagecolorat($image, $ik, $jg) & 0x7F000000) >> 24;
-            $suma += $alpha*$coeffs[$flou][$k];
-        }
-        $c = imagecolorallocatealpha($temp1, 0, 0, 0, $suma/$sum );
-        imagesetpixel($temp1,$i,$j,$c);
-    }
-
-    // Vertical blur, a shift of the angle, opacity and color
-
-    $x = cos(deg2rad($angle))*$leng;
-    $y = sin(deg2rad($angle))*$leng;
-
-    $temp2 = imagecreatetruecolor(imagesx($temp1)+abs($x), imagesy($temp1)+abs($y));
-    imagesavealpha($temp2, true);
-    $tp = imagecolorallocatealpha($temp2,0,0,0,127);
-    imagefill($temp2,0,0,$tp);
-
-    $x1 = $x<0?0:$x;
-    $y1 = $y<0?0:$y;
-
-    for ( $i=0 ; $i < imagesx($temp1) ; $i++ )
-    for ( $j=0 ; $j < imagesy($temp1) ; $j++ ) {
-        $suma = 0;
-        for ( $k=0 ; $k <= $flou ; $k++ ) {
-            $jk = $j-$demi+$k;
-            if( $jk<0 || $jk>imagesy($temp1)-1 ) $alpha = 127;
-            else $alpha = (imagecolorat($temp1, $i, $jk) & 0x7F000000) >> 24;
-            $suma += $alpha*$coeffs[$flou][$k];
-        }
-        $alpha = 127-((127-($suma/$sum))/(100/$opac));
-        $c = imagecolorallocatealpha($temp2, $rgb[0], $rgb[1], $rgb[2], $alpha < 0 ? 0 : $alpha > 127 ? 127 : $alpha );
-        imagesetpixel($temp2,$i+$x1,$j+$y1,$c);
-    }
-    imagedestroy($temp1);
-
-    // Merge of the image and are shade
-    $x = $x>0?0:$x;
-    $y = $y>0?0:$y;
-    imagecopy( $temp2, $image, $demi-$x, $demi-$y, 0, 0, imagesx($image), imagesy($image));
-
-    return $temp2;
-
-}
-

lib/jelix/utils/jImage.class.php

@@ +1 @@
+<?php
+/**
+* @package    jelix
+* @subpackage utils
+* @author     Bastien Jaillot
+* @copyright  2008 Bastien Jaillot
+* @link       http://www.jelix.org
+* @licence    GNU Lesser General Public Licence see LICENCE file or http://www.gnu.org/licenses/lgpl.html
+*/
+
+/**
+* Utility class to create cache image 
+* @package    jelix
+* @subpackage utils
+* @static
+*/
+class jImage {
+
+    static function get ($src, $params = array()) {
+        
+        // Extension
+        if( empty($params['ext']) ) {
+            $path_parts = pathinfo($src);
+            $ext = strtolower($path_parts['extension']);
+        } else $ext = strtolower($params['ext']);
+
+        // White background for IE
+        if (   empty($params['background'])
+            && strpos($_SERVER["HTTP_USER_AGENT"], 'MSIE') !== false
+            && strpos($_SERVER["HTTP_USER_AGENT"], 'MSIE 7') === false) {
+            $params['background'] = '#ffffff';
+        }
+
+        // Name of the file cache
+        $chaine = $src;
+        foreach($params as $key => $value)
+            if( !in_array($key, array('alt', 'class', 'id', 'style', 'longdesc', 'name', 'ismap', 'usemap', 'title', 'dir', 'lang', 'onclick', 'ondblclick', 'onmousedown', 'onmouseup', 'onmouseover', 'onmousemove', 'onmouseout', 'onkeypress', 'onkeydown', 'onkeyup')))
+                $chaine .= $key.$value;
+        $cachename = md5($chaine).'.'.$ext;
+
+        // Path
+        $cache_path = JELIX_APP_WWW_PATH.'cache/images/'.$cachename;
+        $origine_path = JELIX_APP_WWW_PATH.$src;
+
+        global $gJConfig;
+        $www = 'http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['HTTP_HOST'].$gJConfig->urlengine['basePath'];
+        $cache_www = $www.'cache/images/'.$cachename;
+        $origine_www = $www.$src;
+
+        // Cache and make changes if necessary
+        if( is_file($origine_path) && !is_file($cache_path) ) {
+            $att = array('width'=>'', 'height'=>'', 'maxwidth'=>'', 'maxheight'=>'', 'zoom'=>'', 'alignh'=>'', 'alignv'=>'', 'ext'=>'', 'quality'=>'', 'shadow'=>'');
+            if( count(array_intersect_key($params, $att)) )
+                self::image_inCache($src, $cachename, $params);
+        }
+
+        // Attributes
+        $att = array('alt'=>'', 'id'=>'', 'class'=>'', 'style'=>'', 'longdesc'=>'', 'name'=>'', 'ismap'=>'', 'usemap'=>'', 'title'=>'', 'dir'=>'', 'lang'=>'', 'onclick'=>'', 'ondblclick'=>'', 'onmousedown'=>'', 'onmouseup'=>'', 'onmouseover'=>'', 'onmousemove'=>'', 'onmouseout'=>'', 'onkeypress'=>'', 'onkeydown'=>'', 'onkeyup'=>'');
+        $att = array_intersect_key($params, $att);
+
+        // If the image does not undergo transformation
+        if( !is_file($cache_path) ) {
+            $att['src'] = $origine_www;
+            $att['style'] = empty($att['style'])?'':$att['style'];
+            if( !empty($params['width']) )             $att['style'] .= 'width: '.$params['width'].'px;';
+            else if( !empty($params['maxwidth']) )     $att['style'] .= 'width: '.$params['maxwidth'].'px;';
+            if( !empty($params['height']) )            $att['style'] .= 'height: '.$params['height'].'px;';
+            else if( !empty($params['maxheight']) )    $att['style'] .= 'height: '.$params['maxheight'].'px;';
+        } else
+            $att['src'] = $cache_www;
+
+        // Tag image
+        $imgprint = '<img';
+        foreach( $att as $key => $val )
+            if( !empty($val) )
+                $imgprint .= ' '.$key.'="'.$val.'"';
+        $imgprint .= '/>';
+        
+        return $imgprint;
+    }
+
+    static protected function image_inCache($src, $cachename, $array) {
+
+        $mimes = array('gif'=>'image/gif', 'png'=>'image/png',
+                       'jpeg'=>'image/jpeg', 'jpg'=>'image/jpeg', 'jpe'=>'image/jpeg',
+                       'xpm'=>'image/x-xpixmap', 'xbm'=>'image/x-xbitmap', 'wbmp'=>'image/vnd.wap.wbmp');
+
+        global $gJConfig;
+        $origine_www = 'http'.(empty($_SERVER['HTTPS'])?'':'s').'://'.$_SERVER['HTTP_HOST'].$gJConfig->urlengine['basePath'].$src;
+
+        $path_parts = pathinfo($origine_www);
+        $ext = $mimes[strtolower($path_parts['extension'])];
+        $quality = (!empty($array['quality']))?  $array['quality'] : 100;
+
+        // Creating an image
+        switch ( $ext ) {
+            case 'image/gif'             : $image = imagecreatefromgif($origine_www); break;
+            case 'image/jpeg'            : $image = imagecreatefromjpeg($origine_www); break;
+            case 'image/png'             : $image = imagecreatefrompng($origine_www); break;
+            case 'image/vnd.wap.wbmp'    : $image = imagecreatefromwbmp($origine_www); break;
+            case 'image/image/x-xbitmap' : $image = imagecreatefromxbm($origine_www); break;
+            case 'image/x-xpixmap'       : $image = imagecreatefromxpm($origine_www); break;
+            default                      : return ;
+        }
+
+        if(!empty($array['maxwidth']) && !empty($array['maxheight'])) {
+
+            $origWidth = imagesx($image);
+            $origHeight = imagesy($image);
+            $constWidth = $array['maxwidth'];
+            $constHeight = $array['maxheight'];
+            $ratio = imagesx($image)/imagesy($image);
+
+            if ( $origWidth < $constWidth && $origHeight < $constHeight ) {
+                $array['width'] = $origWidth;
+                $array['height'] = $origHeight;
+            } else {
+                $ratioHeight = $constWidth/$ratio;
+                $ratioWidth = $constHeight*$ratio;
+                if ( $ratioWidth > $constWidth ) {
+                    $constHeight = $ratioHeight;
+                }
+                else if ( $ratioHeight > $constHeight ) {
+                    $constWidth = $ratioWidth;
+                }
+                $array['width'] = $constWidth;
+                $array['height'] = $constHeight;
+            }
+        }
+
+        if (!empty($array['width']) || !empty($array['height'])) {
+
+            $ancienimage = $image;
+            $resampleheight = imagesy($ancienimage);
+            $resamplewidth = imagesx($ancienimage);
+            $posx = 0;
+            $posy = 0;
+
+            if(empty($array['width'])) {
+                $finalheight = $array['height'];
+                $finalwidth = $finalheight*imagesx($ancienimage)/imagesy($ancienimage);
+            } else if (empty($array['height'])) {
+                $finalwidth = $array['width'];
+                $finalheight = $finalwidth*imagesy($ancienimage)/imagesx($ancienimage);
+            } else {
+                $finalwidth = $array['width'];
+                $finalheight = $array['height'];
+                if(!empty($array['omo']) && $array['omo'] == 'true') {
+                    if($array['width'] >= $array['height']) {
+                        $resampleheight = ( $resamplewidth*$array['height'] )/$array['width'];
+                    } else {
+                        $resamplewidth = ( $resampleheight*$array['width'] )/$array['height'];
+                    }
+                }
+            }
+
+            if(!empty($array['zoom'])) {
+                $resampleheight /= 100/$array['zoom'];
+                $resamplewidth /= 100/$array['zoom'];
+            }
+
+            $posx = imagesx($ancienimage)/2 -$resamplewidth/2;
+            $posy = imagesy($ancienimage)/2 -$resampleheight/2;
+
+            if(!empty($array['alignh'])) {
+                if($array['alignh'] == 'left')            $posx = 0;
+                else if($array['alignh'] == 'right')    $posx = -($resamplewidth - imagesx($ancienimage));
+                else if($array['alignh'] != 'center')    $posx = -$array['alignh'];
+            }
+
+            if(!empty($array['alignv'])) {
+                if($array['alignv'] == 'top')            $posy = 0;
+                else if($array['alignv'] == 'bottom')    $posy = -($resampleheight - imagesy($ancienimage));
+                else if($array['alignv'] != 'center')    $posy = -$array['alignv'];
+            }
+
+            $image = imagecreatetruecolor($finalwidth, $finalheight);
+            imagesavealpha($image, true);
+            $tp = imagecolorallocatealpha($image,0,0,0,127);
+            imagefill($image,0,0,$tp);
+
+            imagecopyresampled($image, $ancienimage, 0, 0, $posx, $posy, imagesx($image), imagesy($image), $resamplewidth, $resampleheight);
+        }
+
+        // The shadow cast adds to the dimension of the image chooses
+        if( !empty($array['shadow']) )
+           $image = self::image_ombre ($image, $array);
+
+        // Background
+        if( !empty($array['background']) ) {
+            $array['background'] = str_replace('#', '', $array['background']);
+            $rgb = array(0,0,0);
+            for ($x=0;$x<3;$x++) $rgb[$x] = hexdec(substr($array['background'],(2*$x),2));
+            $fond = imagecreatetruecolor(imagesx($image), imagesy($image));
+            imagefill( $fond, 0, 0, imagecolorallocate( $fond, $rgb[0], $rgb[1], $rgb[2]) );
+            imagecopy( $fond, $image, 0, 0, 0, 0, imagesx($image), imagesy($image));
+            $image = $fond;
+        }
+
+
+        $ext = empty($array['ext'])?$ext:$mimes[$array['ext']];
+        $cache_path = JELIX_APP_WWW_PATH.'cache/images/';
+        jFile::createDir($cache_path);
+
+
+        // Register
+        switch ( $ext ) {
+            case 'image/gif'  : imagegif($image, $cache_path.$cachename); break;
+            case 'image/jpeg' : imagejpeg($image, $cache_path.$cachename, $quality); break;
+            default           : imagepng($image, $cache_path.$cachename);
+        }
+
+        // Destruction
+        @imagedestroy($image);
+    }
+
+    static protected function image_ombre ($image, $array) {
+
+        // Default
+        $leng = isset($array['soffset'])?$array['soffset']:10;
+        $angle = isset($array['sangle'])?$array['sangle']:135;
+        $flou = isset($array['sblur'])?$array['sblur']:10;
+        $opac = isset($array['sopacity'])?$array['sopacity']:20;
+        $color = isset($array['scolor'])?$array['scolor']:'#000000';
+
+        // Color of the shadow
+        $color = str_replace('#', '', $color);
+        $rgb = array(0,0,0);
+        if (strlen($color) == 6)
+            for ($x=0;$x<3;$x++)
+                $rgb[$x] = hexdec(substr($color,(2*$x),2));
+        else if (strlen($color) == 3)
+            for ($x=0;$x<3;$x++)
+                $rgb[$x] = hexdec(substr($color,(2*$x),1));
+
+        // Gaussian blur parameter
+        $coeffs = array (array ( 1),
+                         array ( 1, 1),
+                         array ( 1, 2, 1),
+                         array ( 1, 3, 3, 1),
+                         array ( 1, 4, 6, 4, 1),
+                         array ( 1, 5, 10, 10, 5, 1),
+                         array ( 1, 6, 15, 20, 15, 6, 1),
+                         array ( 1, 7, 21, 35, 35, 21, 7, 1),
+                         array ( 1, 8, 28, 56, 70, 56, 28, 8, 1),
+                         array ( 1, 9, 36, 84, 126, 126, 84, 36, 9, 1),
+                         array ( 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1),
+                         array ( 1, 11, 55, 165, 330, 462, 462, 330, 165, 55, 11, 1));
+        $sum = pow (2, $flou);
+        $demi = $flou/2;
+
+
+        // Horizontal blur and blur margin
+        $temp1 = imagecreatetruecolor(imagesx($image)+$flou, imagesy($image)+$flou);
+        imagesavealpha($temp1, true);
+        $tp = imagecolorallocatealpha($temp1,0,0,0,127);
+        imagefill($temp1,0,0,$tp);
+
+        for ( $i=0 ; $i < imagesx($temp1) ; $i++ )
+        for ( $j=0 ; $j < imagesy($temp1) ; $j++ ) {
+            $ig = $i-$demi; $jg = $j-$demi; $suma = 0;
+            for ( $k=0 ; $k <= $flou ; $k++ ) {
+                $ik = $ig-$demi+$k;
+                if( $jg<0 || $jg>imagesy($temp1)-$flou-1 ) $alpha = 127;
+                else if( $ik<0 || $ik>imagesx($temp1)-$flou-1 ) $alpha = 127;
+                else $alpha = (imagecolorat($image, $ik, $jg) & 0x7F000000) >> 24;
+                $suma += $alpha*$coeffs[$flou][$k];
+            }
+            $c = imagecolorallocatealpha($temp1, 0, 0, 0, $suma/$sum );
+            imagesetpixel($temp1,$i,$j,$c);
+        }
+
+        // Vertical blur, a shift of the angle, opacity and color
+
+        $x = cos(deg2rad($angle))*$leng;
+        $y = sin(deg2rad($angle))*$leng;
+
+        $temp2 = imagecreatetruecolor(imagesx($temp1)+abs($x), imagesy($temp1)+abs($y));
+        imagesavealpha($temp2, true);
+        $tp = imagecolorallocatealpha($temp2,0,0,0,127);
+        imagefill($temp2,0,0,$tp);
+
+        $x1 = $x<0?0:$x;
+        $y1 = $y<0?0:$y;
+
+        for ( $i=0 ; $i < imagesx($temp1) ; $i++ )
+        for ( $j=0 ; $j < imagesy($temp1) ; $j++ ) {
+            $suma = 0;
+            for ( $k=0 ; $k <= $flou ; $k++ ) {
+                $jk = $j-$demi+$k;
+                if( $jk<0 || $jk>imagesy($temp1)-1 ) $alpha = 127;
+                else $alpha = (imagecolorat($temp1, $i, $jk) & 0x7F000000) >> 24;
+                $suma += $alpha*$coeffs[$flou][$k];
+            }
+            $alpha = 127-((127-($suma/$sum))/(100/$opac));
+            $c = imagecolorallocatealpha($temp2, $rgb[0], $rgb[1], $rgb[2], $alpha < 0 ? 0 : $alpha > 127 ? 127 : $alpha );
+            imagesetpixel($temp2,$i+$x1,$j+$y1,$c);
+        }
+        imagedestroy($temp1);
+
+        // Merge of the image and are shade
+        $x = $x>0?0:$x;
+        $y = $y>0?0:$y;
+        imagecopy( $temp2, $image, $demi-$x, $demi-$y, 0, 0, imagesx($image), imagesy($image));
+
+        return $temp2;
+
+    }
+
+}