[TASK] Fixed a bug in the movePointer() function.

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
 
 	/**