diff --git a/BoxImage.class.php b/BoxImage.class.php
index 9f5ba99..0e498aa 100644
--- a/BoxImage.class.php
+++ b/BoxImage.class.php
@@ -36,12 +36,27 @@ class BoxImage {
 	 * @return void
 	 * @throws Exception
 	 */
-	public function __construct($size) {
+	public function __construct($size, $mode) {
 		if($size < 1) throw new Exception("This cannot be done!");
 
 			//determine width+height
-		$this->height = ceil(sqrt($size));
-		$this->width = $this->height;
+		switch($mode) {
+			case "square":
+				$this->height = ceil(sqrt($size));
+				$this->width = $this->height;
+				break;
+			case "line":
+				$this->height = 1;
+				$this->width = $size;
+				break;
+			case "bar":
+				$this->height = $size;
+				$this->width = 1;
+				break;
+			default:
+				throw new Exception("Unknown mode given!");
+				break;
+		}
 
 			//prepare image for PNG with transparency using the calculated size.
 		$this->image = imagecreatetruecolor($this->width, $this->height);
@@ -98,6 +113,8 @@ class BoxImage {
 	 * @return void
 	 */
 	public function movePointer($offset) {
+		//echo $this->pointer_x.",".$this->pointer_y." --> ";
+
 		if($offset === 0) return;
 		if($offset > 0) $step = 1;
 		if($offset < 0){
@@ -125,14 +142,16 @@ class BoxImage {
 			 		//increase x-pointer
 				$this->pointer_x += 1;
 					//handle y-jumps
-				if($this->pointer_x > $this->width) {
+				if($this->pointer_x >= $this->width) {
 					$this->pointer_x = 0;
 					$this->pointer_y += 1;
 						//out of range?
-					if($this->pointer_y > $this->height) throw new Exception("Out of range! (height)");
+					if($this->pointer_y >= $this->height) throw new Exception("Out of range! (height)");
 				}
 			} //end of if
 		} //end of for
+
+		//echo $this->pointer_x.",".$this->pointer_y."\n";
 	} //end of function
 
 	/**
diff --git a/FileImageConverter.class.php b/FileImageConverter.class.php
index f46b754..468fdbb 100644
--- a/FileImageConverter.class.php
+++ b/FileImageConverter.class.php
@@ -29,7 +29,7 @@ class FileImageConverter {
 	 * @return void
 	 * @throws Exception
 	 */
-	public function convertFile($filename) {
+	public function convertFile($filename, $mode) {
 		if(file_exists($filename) === FALSE) throw new Exception("Invalid filename given!");
 
 			//get file data
@@ -56,9 +56,9 @@ class FileImageConverter {
 		$size = strlen($fancy_header) + 1 + strlen($filesize) + 1 + strlen($md5) + 1 + $filesize + 1;
 
 			//create and prepare image
-		$this->image = new BoxImage($size);
+		$this->image = new BoxImage($size, $mode);
 
-		echo "Image will be " . $this->image->getWidth() . "px x " . $this->image->getHeight() . "px.\n";
+		echo "Image will be " . $this->image->getWidth() . "px X " . $this->image->getHeight() . "px. (Mode: " . $mode . ")\n";
 
 		echo "Filling image...";
 		$this->image->fillImage(0,0,0,0);
@@ -92,9 +92,8 @@ class FileImageConverter {
 		echo "Adding file contents...\n";
 		$this->addDataToImage($content);
 
-			//magic pixel
+			//magic pixel - last pixel for line and bar mode, do NOT move pointer!
 		$this->image->setCurrentPixel(0,0,0,127);
-		$this->image->movePointer(1);
 
 			//save image
 		echo "Saving image...";
diff --git a/Main.php b/Main.php
index 4935287..632cd50 100644
--- a/Main.php
+++ b/Main.php
@@ -1,11 +1,13 @@
 <?php
+error_reporting(E_ALL);
 require_once "CharColorConverter.class.php";
 require_once "BoxImage.class.php";
 require_once "FileImageConverter.class.php";
 
 $filename = $argv[1];
+$mode = $argv[2];
 
 $converter = new FileImageConverter();
-$converter->convertFile($filename);
+$converter->convertFile($filename, $mode);
 
 ?>
\ No newline at end of file