title: GridLayout with component fixed Width and Height?
body: <p>I have a main Panel and I'm adding components dynamically into that one.</p>
  <p>Main Panel has GridLayout limited to 3 columns and 0 rows (0 rows will allow rows to grow infinitely), but the problem is that I want all components to have fixed size or component's preferred size.</p>
  <p>I can use other layout if it meets my requirements... but for now only GridLayout allows me to limit columns to 3...</p>
  <p>I forgot to mention, Main Panel is added into JScrollpane, so I can scroll vertically.</p>