Inventory, how to make cells 'bigger'.

Newbie & Debugging Questions
#1

Hi there JGO,

currently I am working on the Inventory. I had an idea to make some items bigger then 1 cell:


http://img571.imageshack.us/img571/6001/0af8.png

But if you can see it is only rendering a bit of the item. I had some ideas to make a few variables, and then just try things out. But it doesn’t seem to work that good. The only part that was good is the selection of multiple Cells:

   public List<Integer> biggerCell() {
		List<Integer> cells = new ArrayList<>();
		for(int x = 0 ; x < item[0].getWidth(); x++){
			for(int y = 0 ; y < item[0].getHeight(); y++){
				cells.add(this.x + x + (this.y + y) * maxWidth);
			}
		}
		return cells;
	}

So my question is: Are there any tutorials on how to make cells that are ‘bigger’ than 1 cell?
Or if you have any ideas, just post them and I will do something with it! (Please do not post any codes, I am still learning and it is not learning if I am copying stuff).

Thanks already!
-RoseSlayer