main_darwin.go RawHistoryFolder

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: 2024 The Ebitengine Authors
3
4package main
5
6import (
7	"runtime"
8
9	"github.com/ebitengine/purego"
10	"github.com/ebitengine/purego/objc"
11)
12
13const (
14	NSApplicationActivationPolicyRegular = 0
15	NSWindowStyleMaskTitled              = 1 << 0
16	NSBackingStoreBuffered               = 2
17)
18
19type NSPoint struct {
20	X, Y float64
21}
22
23type NSSize struct {
24	Width, Height float64
25}
26
27type NSRect struct {
28	Origin NSPoint
29	Size   NSSize
30}
31
32func init() {
33	runtime.LockOSThread()
34}
35
36func main() {
37	if _, err := purego.Dlopen("/System/Library/Frameworks/Cocoa.framework/Cocoa", purego.RTLD_GLOBAL|purego.RTLD_LAZY); err != nil {
38		panic(err)
39	}
40	nsApp := objc.ID(objc.GetClass("NSApplication")).Send(objc.RegisterName("sharedApplication"))
41	nsApp.Send(objc.RegisterName("setActivationPolicy:"), NSApplicationActivationPolicyRegular)
42	wnd := objc.ID(objc.GetClass("NSWindow")).Send(objc.RegisterName("alloc"))
43	wnd = wnd.Send(objc.RegisterName("initWithContentRect:styleMask:backing:defer:"),
44		NSMakeRect(0, 0, 320, 240),
45		NSWindowStyleMaskTitled,
46		NSBackingStoreBuffered,
47		false,
48	)
49
50	title := objc.ID(objc.GetClass("NSString")).Send(objc.RegisterName("stringWithUTF8String:"), "My Title")
51	wnd.Send(objc.RegisterName("setTitle:"), title)
52	wnd.Send(objc.RegisterName("makeKeyAndOrderFront:"), objc.ID(0))
53	wnd.Send(objc.RegisterName("center"))
54	nsApp.Send(objc.RegisterName("activateIgnoringOtherApps:"), true)
55	nsApp.Send(objc.RegisterName("run"))
56}
57
58func NSMakeRect(x, y, width, height float64) NSRect {
59	return NSRect{Origin: NSPoint{x, y}, Size: NSSize{width, height}}
60}