--- expose/index.php	2003/11/05 15:40:21	1.4
+++ expose/index.php	2003/11/07 22:34:23	1.7
@@ -20,7 +20,18 @@
 | Version 2 along with this program; if not, visit GNU's Home Page
 | http://www.gnu.org/
 +----------------------------------------------------------------------+
-$Id: index.php,v 1.4 2003/11/05 15:40:21 cam Exp $
+$Id: index.php,v 1.7 2003/11/07 22:34:23 cam Exp $
+
+
+
+// CODE FOR EMBEDDING AVI/MPEG/MOV FILES IN HTML
+
+<embed src="filename" autostart="false" width="320" height="240" align="left" oncursor="play" hspace="20"> 
+<noembed>
+	<a href="filename">click to view</a>
+		<img dynsrc="filename" start="mouseover" align="left" controls width="320" height="240" hspace="25"> 
+	</a>
+</noembed>
 */
 
 $global_var['metadata']['author'] = "Carl Johan Schedvin <cjsc02@student.bth.se>";
@@ -60,8 +71,17 @@
 									'wm'	=>	''
 										);
 
+$global_var['image_sz']['valid_sizes'] = array	(
+													'640x480',
+													'800x600',
+													'1024x768'													
+												);
+
 $global_var['image_sz']['default']	=& $global_var['image_sz']['640'];
 
+$exif_headers = array ();
+
+							
 if(isset($_SERVER['PHP_SELF'])) {
 	$php_self = $_SERVER['PHP_SELF'];
 } else {
@@ -77,14 +97,65 @@
 
 
 /**
- * ! NOT IMPLEMENTED !
- *
  * Extracts the EXIF header of a JPG if available using
  * built-in php function exif_read_data, this information
  * is extracted upon request and not written to disk.
  */
 function extract_exif_data()
 {
+	global $global_var, $pwd, $get_vars, $exif_headers;
+
+	$src_image = $get_vars['img'];
+	$exif_data = @exif_read_data($pwd.'/'.$src_image,0,true);
+
+	if($exif_data) {
+		
+		foreach($exif_data as $exif_section_key => $exif_section) {
+			foreach($exif_section as $exif_key => $exif_value) {
+					
+					switch($exif_key) {
+						case 'Model':
+							array_push($exif_headers, 'Model: '.$exif_value);
+							break;
+
+						case 'ApertureFNumber':
+							array_push($exif_headers, 'Aperture: '. $exif_value);
+							break;
+
+						case 'FocalLength':
+							$factor = 6.49122807;
+							$vars = split("/",$exif_value);
+							$focal_length = round(($vars[0]/$vars[1])*$factor);
+							array_push($exif_headers, 'Focal Length: '. $focal_length .'mm');
+							break;
+
+						case 'DateTime':
+							array_push($exif_headers, 'Date: '.$exif_value);
+							break;
+
+						case 'FlashMode':
+							switch($exif_value) {
+								case '0':
+									array_push($exif_headers, 'Flash: Off');
+									break;
+								case '1':
+									array_push($exif_headers, 'Flash: On');
+									break;
+							}
+							break;
+						case 'ISOSpeedRatings';
+							array_push($exif_headers, 'ISO: '.$exif_value);
+							break;
+						default:
+							break;
+					}
+			}
+		}
+		if(sizeof($exif_headers)>0)	{
+			ksort($exif_headers);
+			reset($exif_headers);
+		}
+	}
 }
 
 
@@ -151,7 +222,7 @@
 
 function show_image()
 {
-	global $global_var, $get_vars, $pwd;
+	global $global_var, $get_vars, $pwd, $exif_headers;
 
 	$image = $pwd.'/'.$get_vars['img'];
 
@@ -160,24 +231,94 @@
 	if(file_exists($image)) {
 
 		$image_size = GetImageSize($image);
+		$src_image_size = $image_size;
 
-		if(isset($get_var['width'])) {
-			if($get_var['width'] >= $image_size[0])
+		if(isset($get_vars['width'])) {
+			
+			$cache_size = split("x",$get_vars['width']);
+			
+			if($cache_size[0] >= $src_image_size[0]) {
 				$cache_image = $image;
+			} else {
+				if(array_search($get_vars['width'], $global_var['image_sz']['valid_sizes'])) {
+					if(!file_exists($pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'])) {
+						resize_image($get_vars['width'].'_');
+					}
+					$cached_image = $pwd.'/.cache/'.$get_vars['width'].'_'.$get_vars['img'];
+				}
+				if($cache_size[0] == $global_var['image_sz']['default']['x'])	
+					$cached_image = $cached_image.'/default_'.$get_vars['img'];
+			}
+				
 		} else {
 			if(!file_exists($cached_image.'/default_'.$get_vars['img'])) {
 				resize_image('default_');
+
 			}
 			$cached_image = $cached_image.'/default_'.$get_vars['img'];
+			
 		}
 
 		$image_size = GetImageSize($cached_image);
+		
+		extract_exif_data();
+	
+		if(sizeof($exif_headers) > 0) {	
+
+			$exif_str .= sprintf("<span style=\"font-weight: bold; color:#333;\">EXIF</span> ");
+
+			foreach($exif_headers as $exif_tag) {
+				$exif_str .= sprintf("| %s ", $exif_tag);
+			}
 
+			echo <<<EOT
+				<div id="exif_headers">\n
+					<span>$exif_str</span>\n
+				</div>\n
+EOT;
+
+		}
+		
+	
 		echo <<<EOT
 			<div id="image" style="width: {$image_size[0]}px; height: {$image_size[1]}px;">\n
 				<a href="$image" target="_blank"><img src="$cached_image" alt=""></a>
 			</div>\n
 EOT;
+
+		$image_index = get_image_index();
+		$next = get_next_image($image_index);
+		$prev = get_prev_image($image_index);
+
+		echo <<<EOT
+			<span style="font-weight: bold;">Size:</span>&nbsp;
+EOT;
+	
+		foreach($global_var['image_sz']['valid_sizes'] as $new_size) {
+
+			if($get_vars['width'] == $new_size) {
+				echo $new_size;
+			} elseif($cache_size[0] >= $src_image_size[0]) {
+			} else {
+
+				echo <<<EOT
+					<a href="$php_self?dir=$pwd&img={$get_vars[img]}&width=$new_size">$new_size</a>&nbsp;
+EOT;
+			}
+
+		}
+		
+		echo <<<EOT
+			<a href="$pwd/{$get_vars[img]}" target="_blank">{$src_image_size[0]}x{$src_image_size[1]}</a>
+EOT;
+
+		echo <<<EOT
+			<div>\n
+				<a href="$php_self?dir=$pwd&img=$prev">prev</a>
+				<a href="$php_self?dir=$pwd&img=$next">next</a>\n
+			</div>\n
+EOT;
+		
 	}
 }
 
@@ -188,24 +329,81 @@
 {
 	global $global_var, $get_vars, $pwd;
 	$src_image = $get_vars['img'];
+	$cache_dir = $pwd.'/'.$global_var['path']['cache_dir'];
+
 	if(isset($global_var['external']['magick'])) {
 		if(file_exists($pwd.'/'.$src_image)) {
+
 			$src_image_sz = GetImageSize($pwd.'/'.$src_image);
 			$resize_aspect = round(($global_var['image_sz']['default']['y'] / $src_image_sz[1])*100, 2);
+			$resize_quality = $global_var['image_sz']['default']['ql'];
 
-			// DEBUG: print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
+			if(isset($get_vars['width'])) {
+				$new_width = split("x", $get_vars['width']);
+				$resize_aspect = round(($new_width[1] / $src_image_sz[1])*100, 2);
+			}
+
+			print "Quality: ".$global_var['image_sz']['default']['ql'] ." Resize Aspect: ". $resize_aspect ."%";
+			if(!file_exists($cache_dir))
+				mkdir($cache_dir,0777);
+
+			$debug = array();
 
 			exec($global_var['external']['magick']
 				.' -geometry '.$resize_aspect.'%'
-				.' -quality '.$global_var['image_sz']['default']['ql']
+				.' -quality '.$resize_quality
 				.' '.$pwd.'/'.$src_image
-				.' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image
+				.' '.$pwd.'/'.$global_var['path']['cache_dir'].'/'.$prefix.$src_image, $debug, $ret_val
 				);
+
+			print_r($debug);
 		}	
 	}	
 }
 
 
+
+
+function get_image_index()
+{
+	global $get_vars, $image_files;
+
+	return array_search($get_vars['img'], $image_files);
+}
+
+function get_next_image($pos)
+{
+	global $get_vars, $image_files;
+
+	$next = $pos + 1;
+	
+	if($next >= sizeof($image_files))
+		$next = 0;
+
+	return $image_files[$next];
+}
+
+function get_prev_image($pos)
+{
+	global $get_vars, $image_files;
+
+	$prev = $pos - 1;
+	
+	if($prev < 0)
+		$prev = sizeof($image_files) - 1;
+
+	return $image_files[$prev];
+}
+
+
+function get_split_path()
+{
+	global $pwd;
+
+	$split_path = split('/', $pwd);
+
+	return $split_path;
+}
 /**
  * Retirieves all filenames that are images exclude all
  * other files. It's not recursive so it only examins the
@@ -223,7 +421,7 @@
 		$pwd_dd = opendir($path);
 		while(($file = readdir($pwd_dd)) !== false) {			
 			if(is_file($path."/".$file) 
-				&& !eregi("^\.|^.*.php|^.*.css|^.*~",$file))
+				&& !eregi("^\.|^.*.php|^.*.css|^.*~|^.txt",$file))
 					array_push($images, $file);
 		}
 	}
@@ -257,6 +455,37 @@
 
 
 
+
+
+function create_directory_browser()
+{
+	global $pwd, $dir_files;
+
+	if(sizeof($dir_files)>0) {
+		
+		foreach($dir_files as $dir)  {
+
+			$dir_image = 'open.png';
+	
+			if(file_exists($pwd.'/'.$dir.'/.htaccess'))
+				$dir_image = 'protected.png';
+
+			echo <<<EOT
+				<div style="text-align: center;">\n
+					<a href="$php_self?dir=$pwd/$dir">\n
+						<img src="../images/$dir_image" alt=""/><br/>$dir\n
+					</a>\n
+				</div>\n
+EOT;
+		}	
+	}
+}
+
+
+
+
+
+
 if (isset($get_vars['dir']) && is_dir(rawurldecode($get_vars['dir'])))
 {
 	$pwd = rawurldecode($get_vars['dir']);
@@ -271,9 +500,12 @@
 // print the html header before continuing processing.
 html_template_header();
 
+//if($global_var['navigation_bar'])
+	html_template_navbar();
 
 if(sizeof($image_files) <= 0) {
 	if(sizeof($dir_files) > 0) {
+		create_directory_browser();
 	} else {
 	}
 } else {
@@ -286,6 +518,9 @@
 	}
 }
 
+
+
+
 // print the html footer to make it nice and tidy.
 html_template_footer();
 
@@ -322,7 +557,7 @@
 	<title>expose: </title>
 	
 	<style type="text/css">
-		@import "/~ikea/style.css";
+		@import "./style.css";
 	</style>
 	
 	<link rel="Shortcut Icon" type="image/x-icon" href="/img/favicon.ico" />	
@@ -330,7 +565,10 @@
 </head>
 
 <body>
-
+<div id="header">\n
+	<h1>expose:</h1>
+	<span style="font-style: italic;"></span>
+</div>\n
 <div id="container">\n
 EOF;
 }
@@ -338,6 +576,9 @@
 
 
 
+
+
+
 /**
  * Prints the html footer, this contains only closing
  * tags for the html document and the copyright notice.
@@ -347,12 +588,47 @@
 	global $global_var;
 echo <<<EOF
 	<div id="copyright">\n
-		{$global_var[str_msg][copyright]}<br />
-		<a href="">expose</a> <span style="font-style: italic;">Cvs version: \$Revision: 1.4 $</span>
-	</div>
-</div>
-</body>
-</html>
+		{$global_var[str_msg][copyright]}<br />\n
+		<a href="">expose</a>\n <span style="font-style: italic;">\$Revision: 1.7 $</span>\n
+	</div>\n\n
+</div>\n
+</body>\n
+</html>\n
 EOF;
 }
+
+
+
+
+
+
+function html_template_navbar()
+{
+	global $get_vars;
+	$split_path = get_split_path();
+
+	if(sizeof($split_path) > 0) {
+
+		foreach($split_path as $dir) {
+			if($dir!='') {
+				$path .= $dir.'/';
+				echo <<<EOT
+					<a style="text-decoration: none;" href="$php_self?dir=$path">
+EOT;
+				if($dir == '.')
+					$dir = 'expose';
+
+				echo <<<EOT
+					$dir</a> &gt;&nbsp;\n
+EOT;
+			}
+		}
+		if(isset($get_vars['img'])) {
+			echo <<<EOT
+				{$get_vars[img]}
+EOT;
+		}
+	}
+}
+
 ?>