From 849c58ab89117c45d0b40db23da42117a0b68f71 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Sat, 26 Dec 2020 15:45:37 +0100
Subject: layout: Define explicitly which layouts to toggle between

---
 tt.layout.ahk | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

(limited to 'tt.layout.ahk')

diff --git a/tt.layout.ahk b/tt.layout.ahk
index 54821db..824f3fa 100644
--- a/tt.layout.ahk
+++ b/tt.layout.ahk
@@ -3,7 +3,19 @@
 ;; -> body
 
 LWin & Tab::
-PostMessage, 0x50, 2, 0,, A ; WM_INPUTLANGCHANGEREQUEST
+if (GetKeyState("Shift"))
+	new := altlayout
+else
+{
+	new := activelayouts[1]
+	current := Layout()
+	for k, v in activelayouts
+	{
+		if (v = current)
+			new := activelayouts[k+1]
+	}
+}
+DllCall("SendMessage", "UInt", WinActive("A"), "UInt", 80, "UInt", 1, "UInt", new)
 Sleep, 100
 ShowLayout() ; display new layout in tray icon
 return
@@ -13,30 +25,39 @@ return
 ;; -> init
 
 layouts := { ru: DllCall("LoadKeyboardLayout", "Str", "00000419", "Int", 1)
-			     , sv: DllCall("LoadKeyboardLayout", "Str", "0000041D", "Int", 1) }
+			     , sv: DllCall("LoadKeyboardLayout", "Str", "0000041D", "Int", 1)
+				 , us: DllCall("LoadKeyboardLayout", "Str", "00000409", "Int", 1) }
+activelayouts := [layouts.us, layouts.ru]
+altlayout := layouts.sv
+
 ShowLayout()
 
 ;; -> library
 
-ShowLayout(hwnd := "")
-{
-	global layouts
+Layout() {
 	f := A_FormatInteger
 	SetFormat, Integer, H
 	if (hwnd = "")
 		WinGet, hwnd, id, A
 	thread := DllCall("GetWindowThreadProcessId", "UInt",hwnd, "UInt",0)
 	layout := DllCall("user32.dll\GetKeyboardLayout", "UInt",thread, "UInt")
+	SetFormat, Integer, %f%
+	return layout
+}
+
+ShowLayout(hwnd := "")
+{
+	global layouts
+	layout := Layout()
 	for k, v in layouts
 	{
 		if (layout = v)
 		{
 			if (FileExist(k ".ico"))
-			  Menu, Tray, Icon, %k%.ico
+				Menu, Tray, Icon, %k%.ico
 			break
 		}
 	}
-	SetFormat, Integer, %f%
 }
 
 ;; Update layout display on window change -------------------------------------
-- 
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