SimpleGallery

// SimpleGallery - a simple gallery-script for ModX
// gdlib 2 is required for generating thumbnails
// put your images in a folder, thumbnails will be generated by the script
// the folder must be writable - chmod the folder to 777
// if you call your gallery with '&generatethumbs' at the end of your path, all thumbnails will be generated new
// if you call your gallery with '&deletethumbs' at the end of your path, all thumbnails will be deleted
// Andi Platen, 05.08.2006, www.wireframe.de|www.gleitschirm-taxi.de|www.mountain-panorama.com

// ------- edit the parameters to your needs -------------------------- //

$backButton = 'back';
$dirName = 'assets/images/gallery'; // path to your gallery images
$noImage = 'assets/images/no_image.jpg'; // path to your empty-image
$spaceImage = 'assets/images/img_blank.gif'; // path to an empty spacer-gif
$border_style = 'border:solid 1px #666666'; // style of image borders
$thumbWidth = 120; // thumbnail width
$thumbHeight = 60; // thumbnail height
$imageSpaceH = 10; // horizontal space between images
$imageSpaceV = 10; // vertical space between images
$imageColumn = 5; // number of columns
$thumb_quality = 90;

// ------- end edit --------------------------------------------------- //

$form_action = explode('&', $_SERVER['QUERY_STRING']);
$form_action = $form_action[0];
$form_action = 'index.php?' . $form_action;


if(isset($_REQUEST['big']))
{
	$show_big = $dirName . '/' . $_REQUEST['big'] . '.jpg';
	$big_size = getimagesize($show_big);

	echo '<table border="0" cellspacing="0" cellpadding="0">
	<tr>
		<td style="' . $border_style . '"><a href="' . $form_action . '" title="' . $backButton . '"><img src="' . $show_big . '" ' . $big_size[3] . ' border="0" alt="' . $_REQUEST['big'] . '"></a></td>
	</tr>
	<tr>
		<td>[ <a href="' . $form_action . '" title="' . $backButton . '">' . $backButton . '</a> ]</td>
	</tr>
	</table>';
}
else
{
	$thumbs = array();
	$bigs = array();

	$dirList = opendir($dirName);
	while($file_big = readdir($dirList))
	{
		if($file_big != '.' && $file_big != '..' && substr($file_big, 0, 5) != 'thumb')
		{
      		$big_size = getimagesize($dirName . '/' . $file_big);
    		$file_thumb = $file_big;
    		$file_thumb = 'thumb_' . $file_big;

    		if(!file_exists($dirName . '/' . $file_thumb) || isset($_REQUEST['generatethumbs']))
    		{
    			$gd_image  = imagecreatefromjpeg($dirName . '/' . $file_big);
    			$new_picture = imagecreatetruecolor($thumbWidth, $thumbHeight);
    			imagecopyresampled($new_picture, $gd_image, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $big_size[0], $big_size[1]);
    			imagejpeg($new_picture, $dirName . '/' . $file_thumb, $thumb_quality);
    		}

       	 	array_push($bigs, $dirName . '/' . $file_big);
      	 	array_push($thumbs, $dirName . '/' . $file_thumb);
  	  	}

  	  	if(isset($_REQUEST['deletethumbs']) && substr($file_big, 0, 5) == 'thumb')
    	{
    		unlink($dirName . '/' . $file_big);
    	}
	}
	closedir($dirList);

	natsort($thumbs);
	$bigs = array_values($thumbs);

	echo '<table border="0" cellspacing="0" cellpadding="0">';

	$i = 0;
	while($i < count($thumbs))
	{
		echo '<tr>';

		$k = 1;
		while($k <= $imageColumn)
		{
			if($i + $k < 10)
			{
				$imageSel = '00' . ($i + $k);
			}
			else if ($i + $k < 100)
			{
				$imageSel = '0' . ($i + $k);
			}

			$bild[$k] = $thumbs[$i + $k - 1];
			$bild_name = str_replace($dirName . '/' . 'thumb_','',$bild[$k]);
			$bild_name = str_replace('.jpg','',$bild_name);
			$link[$k] = $form_action . '&big=' . $bild_name;

			if(!$thumbs[$i + $k - 1])
			{
				$bild_name = 'empty';
				$bild[$k] = $noImage;
				$link[$k] = $form_action;
			}

			echo '<td style="' . $border_style . '"><a href="' . $link[$k] . '"><img src="' . $bild[$k] . '" width="' . $thumbWidth . '" height="' . $thumbHeight . '" border="0" alt="' . $bild_name . '"></a></td>';
			if($k < $imageColumn)
			{
				echo '<td style="width:' . $imageSpaceH . 'px"> </td>';
			}

			$k++;
		}

		echo '</tr>';

		if($i < count($thumbs) - $imageColumn)
		{
			echo '<tr>
				<td colspan="' . ($imageColumn * 2 - 1) . '" style="height:' . $imageSpaceV . 'px"><img src="' . $spaceImage . '" width="1" height="' . $imageSpaceV . '" alt=""></td>
			</tr>';
		}

		$i += $imageColumn;
	}

	echo '</table>';
}