Making QT behave properly on Mac.

Couple of things I found out that helped porting a QT application to Mac:

The QMainWindow you create does not look like a native Cocoa window. The status bar is there, no matter what you request, the menu doesn't port and the icon is yucky.
Here's what you can do:

Remove status bar/resize grip:

	void setupWindowWithoutStatusBar(QWidget* w){
	NSView* view = (NSView*) w->winId();
	NSWindow* win = [view window ];
	[win setShowsResizeIndicator:FALSE];
	NSUInteger mask = [win styleMask];
	[win setStyleMask:mask | ~NSResizableWindowMask];
	}

view raw setupWindowWithoutStatusBar.mm hosted with ❤ by GitHub

Don't show unneeded icon in the title bar and move a QAction to Mac's main menu:

	#ifndef Q_OS_MAC
	setWindowIcon( QIcon(":/windowIcon") );
	#else
	myAction->setMenuRole(QAction::ApplicationSpecificRole);
	#endif

view raw nifty qt mac stuff.cpp hosted with ❤ by GitHub