Stop packing when Frame Maximized

[telis93]

When function createStave() is invoked this.parent.pack() is invoked to in JScore.
But when the window is Maximized it takes it out of maximization
I managed to almost fix it by seting an if condition before the packing like this

if( this.parent.getExtendedState != JFrame.MAXIMIZED_BOTH)
    this.parent.pack();