Putting a simple version of my site together, just not sure :S

Stagnate · November 22, 2007

Hello again,

I posted earlier thinking that if i sorted out that problem then i would be able to do the rest myself. After staring at it blankly for a few hours and reading up on "hello world" tutorials, i now realise my knowledge base is far from sufficient.

Ill post what im working with, its kind of a lot and hopefully some of you experts can make sense of what im wanting to do.

The top form is what I got (great) help with earlier so thats all working. The second bigger part is a script I have downloaded which turns large images into thumbnails. Now what I want to do is get my drop down on the left so that when I change it, the images for that catagory change.


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>

<title> Photo Gallery </title>

<style type="text/css">
body {
font-size:8pt; 
color:black;
font-family:verdana,arial,helvetica,san-serif;
background-color:white;
}

td.border {
border:1px #808080 solid;
font-size:8pt;
padding:1px;
}

table {
border-collapse: collapse;
}
.page {
text-decoration:none;
}

a.page:hover {
text-decoration:underline;
color:#000099;
}

.spacer {
border:1px #808080 solid;
font-size:8pt;
background-color:#E2E2E2;
}

</style>

</head>
<body>

<!-- Dropdown Form -->

<script type="text/javascript">
<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//-->
</script>

<?php ob_start();
session_start();

function listdirs($dir) {
    static $alldirs = array();
    $dirs = glob($dir . '\\*', GLOB_ONLYDIR);
    if (count($dirs) > 0) {
        foreach ($dirs as $d) $alldirs[] = $d;
    }
    foreach ($dirs as $dir) listdirs($dir);
    return $alldirs;
}

$folder = '\\images';
$dirlist = listdirs($_SERVER['DOCUMENT_ROOT'].$folder);

echo <<<htmltext
<form name="form" id="form">
        <select name="jumpMenu" id="jumpMenu" onchange="MM_jumpMenu('parent',this,0)">
htmltext;
for ($i=0;$i < count($dirlist);$i += 1)
{
echo "<option value=\"".basename($dirlist[$i])."\">".basename($dirlist[$i])."</option>";
}
echo <<<htmltext
  </select>
</form>
htmltext;
?>

<!-- End of Form -->






<!-- START main -->
<h3 style="text-align:center;">Photo Gallery</h3>

<div style="text-align:center;font-style:italic;font-size:8pt;">(click thumbnail to open in new window)</div>
<table border="0" cellpadding="0" cellspacing="0" align="center">

<?php
// date: 5/11/2004
// version: 1.01
// description: gallery script that creates it's own thumbnails if GD or imagemagick is installed
// license: freeware under: http://www.ricocheting.com/policy.html


// max image width/height
$config['size'] = 150;
// jpeg thumbnail image quality
$config['imagequality'] = 70;

// rows of images per page
$config['rows'] = 3;

// columns of images per page
$config['cols'] = 3;

// max page numbers to show at once
$config['maxShow'] = 10;

$config['start'] = 0;
$config['max'] = 0;
$config['page'] = isset($_GET['page'])?$_GET['page']:"0";

// folder where full size images are stored (include trailing slash)
$config['fulls']="images/";

// folder where thumbnails are to be created
$config['thumbs'] = "$config[fulls]thumb";

// method to create thumbnails. options: gd1, gd2, imagemagick
$config['imagemethod'] = "imagemagick";             

// (if imagemagick) - Path to Imagemagick "convert" program
$config['convert'] = "C:\\imagemagick\\convert.exe";
// (if imagemagick) - Path to Imagemagick "identify" program
$config['identify'] = "C:\\imagemagick\\identify.exe";




#######################################################################
//see if dir exits, if not create
if(isset($_GET['entry'])){
GetEntry();
}else{
PrintThumbs();
}
#######################################################################


#-#############################################
# desc: prints out html for thumbnails of images in directory
function PrintThumbs(){
global $config;

if (!file_exists($config['fulls'])) { 
	oops("directory <b>$config[fulls]</b> does not exist");
	die;
}
//thumb directory
if (!file_exists($config['thumbs'])) { 
	if (!mkdir($config['thumbs'], 0755)) {
		oops("Could not create thumb directory <b>$config[thumbs]</b> - check write permissions");
		die;
	}
}

   $imagelist = GetFileList($config['fulls']);
//   echo count($imagelist);

//processing for how many images to do on current page
$config['start']=($config['page']*$config['cols']*$config['rows']);
$config['max']=( ($config['page']*$config['cols']*$config['rows']) + ($config['cols']*$config['rows']) );

if($config['max'] > count($imagelist)){$config['max']=count($imagelist);}

echo "<tr><td align=\"right\" colspan=\"$config[cols]\" style=\"padding:3px;\" class=\"border\">\n";
#if there is 0 matches, show 0. otherwise show ($start+1)
if ($config['max'] == "0"){echo "Showing results <b>0 - 0</b> of <b>0</b></td></tr>\n";}
else{echo "Showing results <b>".($config['start']+1)." - $config[max]</b> of <b>".count($imagelist)."</b> entries</td></tr>\n";}


echo "<tr>";

$temp=1;
//for all the images on the page
for($i=$config['start']; $i<$config['max']; $i++){


	$thumb_image = $config['thumbs']."/".$imagelist[$i];
	$thumb_exists = file_exists($thumb_image);

	// create thumb if not exist
	if(!$thumb_exists){
		set_time_limit(30);
		$thumb_exists = ResizeImage("$config[fulls]$imagelist[$i]", $thumb_image, $config['size']);
	}

	$imagelist[$i] = rawurlencode($imagelist[$i]);
	$thumb_image = $config['thumbs']."/".$imagelist[$i];

	echo "<td valign=\"bottom\" align=\"center\" class=\"border\"><a href=\"$config[fulls]$imagelist[$i]\" title=\"$imagelist[$i]\" target=\"_blank\">"; 
	if ($thumb_exists) {
		echo "<img src=\"$thumb_image\" border=\"0\" alt=\"$imagelist[$i]\">";
	} else {
		echo "$imagelist[$i]";
	}
	echo "</a></td>\n";


	//if the max cols is reached, start new col
	if(($temp == $config['cols']) && ($i+1 != $config['max'])){
		echo "</tr><tr><td colspan=\"$config[cols]\" class=\"spacer\"> </td></tr><tr>\n";
		$temp=0;
	}
	$temp++;
}//foreach img

//if there are no results
if($config['start'] == $config['max']){
	echo "<td align=\"center\" colspan=\"$config[cols]\" class=\"spacer\">No Entries found</td>\n";
}
//if there are empty "boxes" in the row (ie; last page)
elseif($temp != $config['cols']+1){
	echo "<td align=\"center\" colspan=\"".($config['cols']-$temp+1)."\"> </td>\n";
}


echo "</tr>";
GetPageNumbers(count($imagelist));

}#-#PrintThumbs()


#-#############################################
# desc: grabs and prints filename
# returns: (bool) worked
function GetEntry(){
global $config;

if(!file_exists("$config[fulls]$_GET[entry]")){
oops("Entry does not exist");
return false;
}

echo "<a href=\"$_SERVER[HTTP_REFERER]\">Back</a><br>";
echo "<img src=\"$config[fulls]$_GET[entry]\">";


}#-#GetEntry()


#-#############################################
# desc: GetFileList
# param: [optional] directory to look through
# returns: array with list of images
function GetFileList($dirname="."){
global $config;
$list = array(); 

if ($handle = opendir($dirname)) {
	while (false !== ($file = readdir($handle))) { 
		if (preg_match("/\.(jpe?g|gif|png)$/i",$file)) { 
			$list[] = $file;
		} 
	}
	closedir($handle); 
}
sort($list);

return $list;
}#-#GetFileList()


#-#############################################
# desc: throw an error message
# param: [optional] any custom error to display
function oops($msg) {
?>
<table align=center>
<tr><td class=header>
Error:
<?
print( $msg );
?>
</td></tr>

<tr><td class=entry>
<br><?=$msg?>
<br><br>
<hr size=1 noshade width="80%" class=desc>
<center>Please hit the <a href="javaScript:history.back();"><b>back button</b></a> on your browser to try again.</center>

</td></tr></table>
<?php
}#-#oops()


#-#############################################
# desc: chooses method to resize image to correct ratio
# param: ($image) image reference of full size img to use ($newimage) what to save thumbnail as ($size) max width or height to resize to
# returns: (bool) if image was created
function ResizeImage($image, $newimage, $size) {
   global $config;
   
switch ($config['imagemethod']) {
	case "imagemagick":
		return ResizeImageUsingIM($image, $newimage, $size);
		break;
	case "gd1":
	case "gd2":
		return ResizeImageUsingGD($image, $newimage, $size);
		break;
	default:
		return false;
		break;
}
}#-#ResizeImage()


#-#############################################
# desc: resizes image if GD was used
# param: ($image) image reference of full size img to use ($newimage) what to save thumbnail as ($size) max width or height to resize to
# returns: (bool) if image was created
function ResizeImageUsingGD($image, $newimage, $size) {

list ($width,$height,$type) = GetImageSize($image);

if($im = ReadImageFromFile($image,$type)){
	//if image is smaller than the $size, make it actual $size
	if($height < $size && $width < $size){
		$newheight=$height;
		$newwidth=$width;
	}
	//if image height is larger, height=$size, then calc width
	else if($height > $width){
		$newheight=$size;
		$newwidth=($width / ($height/$size));//cast the resized width as int
	}
	//if image width is larger, width=$size, then calc width
	else{
		$newwidth=$size;
		$newheight=($height / ($width/$size));//cast the resized height as int
	}

	$im2=ImageCreateTrueColor($newwidth,$newheight);
	ImageCopyResampled($im2,$im,0,0,0,0,$newwidth,$newheight,$width,$height);

	if(WriteImageToFile($im2,$newimage,$type)){
		return true;
	}
}

return false;
}#-#ResizeImageUsingGD()


#-#############################################
# desc: resizes image using imagemagick
# param: ($image) image reference of full size img to use ($newimage) what to save thumbnail as ($size) max width or height to resize to
# returns: (bool) if image was created
function ResizeImageUsingIM($image, $newimage, $maxsize) {
global $config; 

Exec("$config[identify] -ping -format \"%w %h\" \"$image\"", $sizeinfo);

if (! $sizeinfo ) {
	return false;
}
$size = explode(" ", $sizeinfo[0]);
$width  = $size[0];
$height = $size[1];

if (!$width) {
	return false;
}

//if image is smaller than the maxsize, make it actual size
if($height < $maxsize && $width < $maxsize){
	$newheight=$height;
	$newwidth=$width;
}
else if($height > $width){
	$newheight=$maxsize;
	$newwidth= ($maxsize * $width) / $height;
}
else{
	$newwidth=$maxsize;
	$newheight=($maxsize * $height) / $width;
}

Exec("$config[convert] -geometry \"$newwidth"."x"."$newheight\" -quality \"$config[imagequality]\" \"$image\" \"$newimage\"");

return file_exists($newimage);
}#-#ResizeImageUsingIM()


#-#############################################
# desc: resizes image using imagemagick
# param: ($filename) filename of image to create ($type) int of type. 1=gif,2=jpeg,3=png
# returns: binary img
function ReadImageFromFile($filename, $type) {
$imagetypes = ImageTypes();

switch ($type) {
	case 1 :
		if ($imagetypes & IMG_GIF){
			return $im = ImageCreateFromGIF($filename);
		}
	break;
	case 2 :
		if ($imagetypes & IMG_JPEG){
			return ImageCreateFromJPEG($filename);
		}
	break;
	case 3 :
		if ($imagetypes & IMG_PNG){
			return ImageCreateFromPNG($filename);
		}
	break;
	default:
	return 0;
}
}#-#ReadImageFromFile()


#-#############################################
# desc: resizes image using imagemagick
# returns: binary img
function WriteImageToFile($im, $filename, $type) {
global $config;

switch ($type) {
	case 1 :
		return ImageGIF($im, $filename);
	case 2 :
		return ImageJpeg($im, $filename, $config['imagequality']);
	case 3 :
		return ImagePNG($im, $filename);
	default:
		return false;
}
}#-#WriteImageToFile()


#-#############################################
# sub: GetPageNumbers
# desc: gets the pages in the list
function GetPageNumbers($entries) {
global $config;

$config['totalPages']=Ceil(($entries)/($config['cols']*$config['rows']));

// echo number of pages
echo "<tr><td colspan=$config[cols] align=center height=20 class=border>Page ($config[totalPages]): ";

// echo out PREV
if( ($config['page']-1) >= 0){
echo "<a href=\"$_SERVER[sCRIPT_NAME]?page=".($config['page']-1)."\" class=page><b>«Prev</b></a>";}
// else no link
else{echo "<b>«Prev</b>";}

	// for each link, echo out page link
		$start=0; // starting image number
		$end=$config['totalPages']-1; // ending image number (total / number image on page)

	// cutoff size < page. or . page != last page (otherwise keep above values)
	if($config['maxShow'] < $config['page'] || (($config['cols']*$config['rows']*$config['maxShow'])< $entries) ){
		// if page >= cutoff size+1 -> start at page - cutoff size
		if($config['page'] >= ($config['maxShow']+1) && $config['page'] < $end-$config['maxShow']){ $start = $config['page']-$config['maxShow'];}
		elseif($end < $config['page']+$config['maxShow']+1 && $config['totalPages']-1 >= $config['maxShow']*2+1){$start = $config['totalPages']-1-$config['maxShow']*2;}
		else{$start=0;} // else start at 0

		// if page+cutoff+1 > number of pages total -> end= number of pages total
		if( $config['page']+$config['maxShow']+1 > $config['totalPages']-1 ){$end = $entries/($config['cols']*$config['rows']);}
		#&oops("$end,$config['maxShow']");
		elseif($start == 0 && $end > $config['maxShow']*2){$end = $config['maxShow']*2;}
		elseif($start == 0 && $config['totalPages'] <= $config['maxShow']*2){$end = $config['totalPages']-1;}
		else{$end = ($config['page']+$config['maxShow']);} //end = page+cutoff+1
	}


// echo out divide marker
if($start > 0){echo " ... ";}
else{echo " - ";}


// echo out each of the numbers
for($i=$start; $i<=$end ; $i++){
	if($config['page']==$i){echo "<b>[".($i+1)."]</b> \n";}
	else{echo "<a href=\"$_SERVER[sCRIPT_NAME]?page=$i\" class=page><b>".($i+1)."</b></a> \n";}
}


// echo out divide marker
if(Ceil($end) < $config['totalPages']-1){echo " ... ";}
else{echo " - ";}

// echo out NEXT
if( ($config['page']+1) <= $config['totalPages']-1){
echo "<a href=\"$_SERVER[sCRIPT_NAME]?page=".($config['page']+1)."\" class=page><b>Next»</b></a> ";}
// else no link
else{echo " <b>Next»</b> ";}

echo "</td></tr>";
}#-#end GetPageNumbers()

?>

<!-- END main -->
</td></tr></table>

</body>

Thanks for looking through my newbie issues.

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Putting a simple version of my site together, just not sure :S

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