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# Based on http://cocoawithlove.com/2010/09/minimalist-cocoa-programming.html
# by Juraj Sukop. This demo was eventually expanded into a more complete
# Cocoa library available at https://bitbucket.org/sukop/nspython .
from cffi import FFI
ffi = FFI()
ffi.cdef('''
typedef signed char BOOL;
typedef long NSInteger;
typedef unsigned long NSUInteger;
typedef NSInteger NSApplicationActivationPolicy;
typedef NSUInteger NSBackingStoreType;
typedef NSUInteger NSStringEncoding;
typedef double CGFloat;
struct CGPoint {
CGFloat x;
CGFloat y;
};
typedef struct CGPoint CGPoint;
struct CGSize {
CGFloat width;
CGFloat height;
};
typedef struct CGSize CGSize;
struct CGRect {
CGPoint origin;
CGSize size;
};
typedef struct CGRect CGRect;
typedef CGPoint NSPoint;
typedef CGSize NSSize;
typedef CGRect NSRect;
typedef struct objc_class *Class;
typedef struct objc_object {
Class isa;
} *id;
typedef struct objc_selector *SEL;
SEL sel_registerName(const char *str);
id objc_getClass(const char *name);
id objc_msgSend(id theReceiver, SEL theSelector, ...);
''')
objc = ffi.dlopen('objc')
appkit = ffi.dlopen('AppKit')
nil = ffi.NULL
YES = ffi.cast('BOOL', 1)
NO = ffi.cast('BOOL', 0)
NSASCIIStringEncoding = ffi.cast('NSStringEncoding', 1)
NSApplicationActivationPolicyRegular = ffi.cast('NSApplicationActivationPolicy', 0)
NSTitledWindowMask = ffi.cast('NSUInteger', 1)
NSBackingStoreBuffered = ffi.cast('NSBackingStoreType', 2)
NSMakePoint = lambda x, y: ffi.new('NSPoint *', (x, y))[0]
NSMakeRect = lambda x, y, w, h: ffi.new('NSRect *', ((x, y), (w, h)))[0]
get, send, sel = objc.objc_getClass, objc.objc_msgSend, objc.sel_registerName
at = lambda s: send(
get('NSString'),
sel('stringWithCString:encoding:'),
ffi.new('char[]', s), NSASCIIStringEncoding)
send(get('NSAutoreleasePool'), sel('new'))
app = send(get('NSApplication'), sel('sharedApplication'))
send(app, sel('setActivationPolicy:'), NSApplicationActivationPolicyRegular)
menubar = send(send(get('NSMenu'), sel('new')), sel('autorelease'))
appMenuItem = send(send(get('NSMenuItem'), sel('new')), sel('autorelease'))
send(menubar, sel('addItem:'), appMenuItem)
send(app, sel('setMainMenu:'), menubar)
appMenu = send(send(get('NSMenu'), sel('new')), sel('autorelease'))
appName = send(send(get('NSProcessInfo'), sel('processInfo')), sel('processName'))
quitTitle = send(at('Quit '), sel('stringByAppendingString:'), appName)
quitMenuItem = send(send(send(
get('NSMenuItem'), sel('alloc')),
sel('initWithTitle:action:keyEquivalent:'),
quitTitle, sel('terminate:'), at('q')),
sel('autorelease'))
send(appMenu, sel('addItem:'), quitMenuItem)
send(appMenuItem, sel('setSubmenu:'), appMenu)
window = send(send(send(
get('NSWindow'), sel('alloc')),
sel('initWithContentRect:styleMask:backing:defer:'),
NSMakeRect(0, 0, 200, 200), NSTitledWindowMask, NSBackingStoreBuffered, NO),
sel('autorelease'))
send(window, sel('cascadeTopLeftFromPoint:'), NSMakePoint(20, 20))
send(window, sel('setTitle:'), appName)
send(window, sel('makeKeyAndOrderFront:'), nil)
send(app, sel('activateIgnoringOtherApps:'), YES)
send(app, sel('run'))
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