package main //go:generate nswrap import ( "fmt" "git.wow.st/gmp/nswrap/examples/app/ns" "runtime" "time" ) //Shortcut for literal NSStrings var nst = ns.NSStringWithGoString func pb1(self ns.GButton, super ns.GButtonSupermethods) { fmt.Println("Pushed button 1") } func pb2(self ns.GButton, super ns.GButtonSupermethods) { fmt.Println("Pushed button 2") a.Terminate(a) } func db(self ns.GButton, super ns.GButtonSupermethods) { fmt.Println("button deallocated") } func didFinishLaunching(self ns.AppDelegate, n *ns.NSNotification) { fmt.Println("Go: did finish launching") fmt.Printf("Notification: %s\n", n.Name().UTF8String()) //Set up an NSWindow win = ns.NSWindowAlloc().InitWithContentRectStyleMask( ns.NSMakeRect(200, 200, 600, 600), ns.NSWindowStyleMask(ns.NSWindowStyleMaskTitled|ns.NSWindowStyleMaskClosable| ns.NSWindowStyleMaskResizable), ns.NSBackingStoreType(ns.NSBackingStoreBuffered), 0, ) // We do not need to retain this because we are in garbage collection mode // and have assigned it to a global variable. //win.Retain() win.SetTitle(nst("Hi World")) win.MakeKeyAndOrderFront(win) win.SetAlphaValue(0.85) //Build a basic menu m1 := ns.NSMenuAlloc().InitWithTitle(nst("Main")) appItem := ns.NSMenuItemAlloc() fileItem := ns.NSMenuItemAlloc() m1.AddItem(appItem) m1.AddItem(fileItem) appMenu := ns.NSMenuAlloc().InitWithTitle(nst("App")) fileMenu := ns.NSMenuAlloc().InitWithTitle(nst("File")) m1.SetSubmenu(appMenu, appItem) m1.SetSubmenu(fileMenu, fileItem) appMenu.AddItemWithTitle(nst("About"), nil, nst("")) appMenu.AddItemWithTitle(nst("Preferences"), nil, nst("")) appMenu.AddItemWithTitle(nst("Quit"), ns.Selector("terminate:"), nst("q")) a.SetMainMenu(m1) fileMenu.AddItemWithTitle(nst("Open"), nil, nst("")) fileMenu.AddItemWithTitle(nst("New"), nil, nst("")) a.SetMainMenu(m1) //add some custom buttons b1 := ns.GButtonAlloc() b2 := ns.GButtonAlloc() b1.Init() b1.PressedCallback(pb1) b1.DeallocCallback(db) b1.SetAction(ns.Selector("pressed")) b1.SetTarget(b1) b1.SetTitle(nst("PUSH")) b2.Init() b2.PressedCallback(pb2) b2.DeallocCallback(db) b2.SetTarget(b2) b2.SetAction(ns.Selector("pressed")) b2.SetTitle(nst("QUIT")) //add some layout constraints b1.SetTranslatesAutoresizingMaskIntoConstraints(0) b2.SetTranslatesAutoresizingMaskIntoConstraints(0) cv := win.ContentView() cv.AddSubview(&b1.NSView) cv.AddSubview(&b2.NSView) viewmap := ns.NSDictionaryWithObjectsForKeys( ns.NSArrayWithObjects(b1, b2), ns.NSArrayWithObjects(nst("b1"), nst("b2"))) cv.AddConstraints(ns.NSLayoutConstraintsWithVisualFormat( nst("V:|-[b1]"), 0, nil, viewmap)) cv.AddConstraints(ns.NSLayoutConstraintsWithVisualFormat( nst("H:|-[b1]"), 0, nil, viewmap)) cv.AddConstraints(ns.NSLayoutConstraintsWithVisualFormat( nst("H:[b1]-[b2]"), ns.NSLayoutFormatOptions(ns.NSLayoutFormatAlignAllBaseline), nil, viewmap)) a.ActivateIgnoringOtherApps(1) } func shouldTerminateAfterLastWindowClosed(self ns.AppDelegate, s *ns.NSApplication) ns.BOOL { fmt.Println("Go: should terminate after last window closed") return 1 } func willTerminate(self ns.AppDelegate, n *ns.NSNotification) { fmt.Println("Go: will terminate") } func didBecomeActive(self ns.AppDelegate, n *ns.NSNotification) { fmt.Println("Go: did become active") fmt.Printf("Notification: %s\n", n.Name().UTF8String()) } var ( a *ns.NSApplication del *ns.AppDelegate win *ns.NSWindow ) func app() { // Lock OS thread because Cocoa uses thread-local storage runtime.LockOSThread() a = ns.NSApplicationSharedApplication() a.SetActivationPolicy(ns.NSApplicationActivationPolicy(ns.NSApplicationActivationPolicyRegular)) // Set up an AppDelegate // assign it to a global variable so it doesn't get garbage collected del = ns.AppDelegateAlloc() del.ApplicationDidFinishLaunchingCallback(didFinishLaunching) del.ApplicationShouldTerminateAfterLastWindowClosedCallback(shouldTerminateAfterLastWindowClosed) del.ApplicationWillTerminateCallback(willTerminate) del.ApplicationDidBecomeActiveCallback(didBecomeActive) a.SetDelegate(del) // Run the app a.Run() } func main() { // Run GC every second to ensure pointers are not being prematurely released. go func() { for { runtime.GC() time.Sleep(time.Second) } }() // Run our app in an autorelease pool just for fun go app() select {} }