My Little Scripts - jpg-dump-photo-gallery.php - PHP ASP Scripts, JavaScript, HTML

<html>
<head>
<title>jpg dump gallery</title>

<style>
a
{
color:aa5500;
font-family:arial;
font-size:10pt;
font-weight:bold;
text-decoration:none;
}
</style>
</head>

<body topmargin="50" bgcolor="aaaa77">

<table align="center" cellpadding="5">

<?
$build = false;
if(isset($HTTP_GET_VARS["b"]) || isset($HTTP_GET_VARS["build"]))
   $build = true;

$image = "";
if(isset($HTTP_GET_VARS["image"]))
   $image = $HTTP_GET_VARS["image"];

$thumbnail_folder = "./thumbs";
$thumbnail_width = 160; $thumbnail_height = 120;

$image_folder = "./images";
$image_width = 640; $image_height = 480;

$source_folder = "./source";

//The number of thumbs in a row,
//followed by the number of rows in a page.
$row_size = 5;
$page_size = 3;

$row = $HTTP_GET_VARS["row"];
if($row == "")
   $row = 0;

if(is_dir($thumbnail_folder) == false)
   mkdir($thumbnail_folder, 0755);

if(is_dir($image_folder) == false)
   mkdir($image_folder, 0755);

if(is_dir($source_folder) == false)
   mkdir($source_folder, 0755);


if($build == true)
  {
  //Get an array of all the jpg files in the current source directory.
  $source_files = glob($source_folder . "/*.JPG");

  for($index = 0; $index < count($source_files); $index++)
     {
     $original_jpg = imagecreatefromjpeg($source_files[$index]);
     $original_size = getimagesize($source_files[$index]);
     $original_width = $original_size[0]; $original_height = $original_size[1];

     $source_file_name = substr($source_files[$index], strrpos($source_files[$index], "/") + 1);

     $thumbnail_jpg = imagecreatetruecolor($thumbnail_width, $thumbnail_height);
     imagecopyresized($thumbnail_jpg, $original_jpg, 0, 0, 0, 0,
                      $thumbnail_width, $thumbnail_height, $original_width, $original_height);
     imagejpeg($thumbnail_jpg, $thumbnail_folder . "/" . $source_file_name);
     imagedestroy($thumbnail_jpg);

     $image_jpg = imagecreatetruecolor($image_width, $image_height);
     imagecopyresized($image_jpg, $original_jpg, 0, 0, 0, 0,
                      $image_width, $image_height, $original_width, $original_height);
     imagejpeg($image_jpg, $image_folder . "/" . $source_file_name);
     imagedestroy($image_jpg);

     imagedestroy($original_jpeg);
     }
  }
?>

<?
//Get an array of all the jpg files in the current thumbnail directory.
$thumbnail_files = glob($thumbnail_folder . "/*.JPG");
$first_index = $row * $row_size;
$last_index = $first_index + $page_size * $row_size;
if($last_index > sizeof($thumbnail_files))
   $last_index = sizeof($thumbnail_files);

for($index = $first_index; $index < $last_index; $index++) {
?>

<? if($index == $first_index) { ?>
<tr>
<? } ?>

<? if($index != 0 && $index % $row_size == 0 && $image == "") { ?>
</tr><tr>
<? } ?>

<?
$image_file = substr($thumbnail_files[$index], strrpos($thumbnail_files[$index], "/") + 1);
$image_url = "jpg-dump-photo-gallery.php?row=" . $row . "&image=" . $image_file;
?>

<? if ($image == "") { ?>
<td>
<a href="<?= $image_url ?>">
<img src="<?= $thumbnail_files[$index] ?>" border="3" style="border-color:aa5500;" /></a></td>
<? } ?>

<? if($image == $image_file) { ?>
<td colspan="2">
<a href="jpg-dump-photo-gallery.php?row=<?= $row ?>">
<img src="<?= $image_folder . "/" . $image_file ?>" border="3" style="border-color:aa5500;" /></a></td>
</tr>

<?
$previous_index = $index - 1;
if($previous_index < $first_index)
   $previous_index = $last_index - 1;
$previous_image_file = substr($thumbnail_files[$previous_index],
                              strrpos($thumbnail_files[$previous_index], "/") + 1);
?>

<tr>
<td>
<a href="jpg-dump-photo-gallery.php?row=<?= $row ?>&image=<?= $previous_image_file ?>">previous</a>
</td>

<?
$next_index = $index + 1;
if($next_index >= $last_index)
   $next_index = $first_index;
$next_image_file = substr($thumbnail_files[$next_index],
                          strrpos($thumbnail_files[$next_index], "/") + 1);
?>

<td align="right">
<a href="jpg-dump-photo-gallery.php?row=<?= $row ?>&image=<?= $next_image_file ?>">next</a>
</td>
<? } ?>

<? if($index == count($thumbnail_files) - 1) { ?>
</tr>
<? } ?>

<? } ?>

<? if($image == "") { ?>
<tr>
<td colspan="<?= $row_size ?>">
<table cellspacing="0" cellpadding="0" width="100%">
<tr>
<td>
<?
$previous_row = $row - $page_size;

$last_page_size = ceil(sizeof($thumbnail_files) / $row_size) % $page_size;
if($last_page_size == 0)
   $last_page_size = $page_size;

if($previous_row < 0)
   $previous_row = ceil(sizeof($thumbnail_files) / $row_size) - $last_page_size;
?>
<a href="jpg-dump-photo-gallery.php?row=<?= $previous_row ?>">previous</a>
</td>

<td align="right">
<?
$next_row = $row + $page_size;
if($next_row >= ceil(sizeof($thumbnail_files) / $row_size))
   $next_row = 0;
?>
<a href="jpg-dump-photo-gallery.php?row=<?= $next_row ?>">next</a>
</td>
</tr>
</table>
</td>
</tr>
<? } ?>
</table>
</body>
</html>
JPG-DUMP-PHOTO-GALLERY.PHP
