Pre-push merge

src/Config.ahk

@@ -90,8 +90,12 @@ Config_init()
   
   ;; Configuration management
   Config_autoSaveSession := False
+  ; @todo: To be removed?
+  If Not Config_filePath                  ; The file path, to which the configuration and session is saved. This target directory must be writable by the user (%A_ScriptDir% is the diretory, in which "Main.ahk" or the executable of bug.n is saved).
+    Config_filePath := A_ScriptDir "\Config.ini"
+  Config_maintenanceInterval := 5000
   
-  Config_restore("Config")
+  Config_restoreConfig(Config_filePath)
   Config_getSystemSettings()
   Config_initColors()
   Loop, % Config_layoutCount 
@@ -241,24 +245,40 @@ Config_redirectHotkey(key)
   }
 }
 
-Config_restore(section, m = 0) 
+Config_restoreLayout(filename, m) 
+{
+  Local i, var, val
+
+  If Not FileExist(filename)
+    Return
+  
+  Loop, READ, %filename%
+    If (SubStr(A_LoopReadLine, 1, 10 + StrLen(m)) = "Monitor_#" m "_" Or SubStr(A_LoopReadLine, 1, 8 + StrLen(m)) = "View_#" m "_#") {
+      i := InStr(A_LoopReadLine, "=")
+      var := SubStr(A_LoopReadLine, 1, i - 1)
+      val := SubStr(A_LoopReadLine, i + 1)
+      %var% := val
+    }
+}
+
+Config_restoreConfig(filename) 
 {
   Local cmd, i, key, type, val, var
   
-  If FileExist(Config_filePath) 
+  If Not FileExist(filename)
-  {
+    Return
-    If (section = "Config") 
+  
-    {
+  Loop, READ, %filename%
-      Loop, READ, %Config_filePath%
-      {
     If (SubStr(A_LoopReadLine, 1, 7) = "Config_") 
     {
+      ;Log_msg("Processing line: " . A_LoopReadLine)
       i := InStr(A_LoopReadLine, "=")
       var := SubStr(A_LoopReadLine, 1, i - 1)
       val := SubStr(A_LoopReadLine, i + 1)
       type := SubStr(var, 1, 13)
       If (type = "Config_hotkey") 
       {
+        Debug_logMessage("Processing configured hotkey: " . A_LoopReadLine, 0)
         i := InStr(val, "::")
         key := SubStr(val, 1, i - 1)
         cmd := SubStr(val, i + 2)
@@ -266,6 +286,7 @@ Config_restore(section, m = 0)
           Hotkey, %key%, Off
         Else 
         {
+          Debug_logMessage("  Hotkey: " . key . " -> " . cmd, 0)
           Config_hotkeyCount += 1
           Config_hotkey_#%Config_hotkeyCount%_key := key
           Config_hotkey_#%Config_hotkeyCount%_command := cmd
@@ -287,38 +308,29 @@ Config_restore(section, m = 0)
       %var% := val
     }
 }
-    } 
+
-    Else If (section = "Monitor") 
+Config_UI_saveSession() 
 {
-      Loop, READ, %Config_filePath%
+  Config_saveSession(Config_filePath, Config_filePath)
-      {
-        If (SubStr(A_LoopReadLine, 1, 10 + StrLen(m)) = "Monitor_#" m "_" Or SubStr(A_LoopReadLine, 1, 8 + StrLen(m)) = "View_#" m "_#") 
-        {
-          i := InStr(A_LoopReadLine, "=")
-          var := SubStr(A_LoopReadLine, 1, i - 1)
-          val := SubStr(A_LoopReadLine, i + 1)
-          %var% := val
-        }
-      }
-    }
-  }
 }
 
-Config_saveSession() 
+Config_saveSession(original, target) 
 {
-  Local m, text
+  Local m, text, tmpfilename
   
-  text := ";; bug.n -- tiling window management`n;; @version " VERSION "`n`n"
+  tmpfilename := target . ".tmp"
-  If FileExist(Config_filePath) 
+  FileDelete, %tmpfilename%
+  
+  text := "; bug.n - tiling window management`n; @version " VERSION "`n`n"
+  If FileExist(original) 
   {
-    Loop, READ, %Config_filePath%
+    Loop, READ, %original%
     {
       If (SubStr(A_LoopReadLine, 1, 7) = "Config_")
         text .= A_LoopReadLine "`n"
     }
     text .= "`n"
   }
-  FileDelete, %Config_filePath%
   
   Loop, % Manager_monitorCount 
   {
@@ -352,7 +364,16 @@ Config_saveSession()
     }
   }
   
-  FileAppend, %text%, %Config_filePath%
+  ;; The FileMove below is an all-or-nothing replacement of the file.
+  ;; We don't want to leave this half-finished.
+  FileAppend, %text%, %tmpfilename%
+  If ErrorLevel 
+  {
+    If FileExist(tmpfilename)
+      FileDelete, %tmpfilename%
+  }
+  Else
+    FileMove, %tmpfilename%, %target%, 1
 }
 
 ;; Key definitions
@@ -443,7 +464,7 @@ Config_saveSession()
 
 ;; Administration
 #^e::Run, edit %Config_filePath%
-#^s::Config_saveSession()
+#^s::Config_UI_saveSession()
 #^r::Main_reload()
 #^+r::Reload
 #^q::ExitApp

src/Debug.ahk

@@ -27,7 +27,6 @@ Debug_initLog(filename, level = 0, truncateFile = True)
   If truncateFile
     If FileExist(Debug_logFilename)
       FileDelete, %Debug_logFilename%
-  Debug_logMessage("Log initialized.", 0)
 }
 
 Debug_logHelp() 

src/Main.ahk

@@ -36,13 +36,18 @@ SetWinDelay, 10
     Main_dataDir = %1%
   Else
     Main_dataDir = %A_ScriptDir%
-  Debug_initLog(Main_dataDir "\log.txt", 0, False)
+
-  Config_filePath := Main_dataDir "\config.ini"
+  Main_setup()
+  
+  Debug_initLog(Main_appDir "\log.txt", 0, False)
+
+  Debug_logMessage("====== Initializing ======")
+  Config_filePath := Main_appDir "\Config.ini"
   Config_init()
   
   Menu, Tray, Tip, %NAME% %VERSION%
-  IfExist %A_ScriptDir%\logo.ico
+  IfExist %A_ScriptDir%\images\kfm.ico
-    Menu, Tray, Icon, %A_ScriptDir%\logo.ico
+    Menu, Tray, Icon, %A_ScriptDir%\images\kfm.ico
   Menu, Tray, NoStandard
   Menu, Tray, Add, Toggle bar, Main_toggleBar
   Menu, Tray, Add, Help, Main_help
@@ -51,16 +56,17 @@ SetWinDelay, 10
   
   ResourceMonitor_init()
   Manager_init()
+  Debug_logMessage("====== Running ======", 0)
 Return          ;; end of the auto-execute section
 
 ;; Function & label definitions
 Main_cleanup:
-  Debug_logMessage("Cleaning up", 0)
+  Debug_logMessage("====== Cleaning up ======", 0)
   If Config_autoSaveSession
-    Config_saveSession()
+    Config_saveSession(Config_filePath, Config_filePath)
   Manager_cleanup()
   ResourceMonitor_cleanup()
-  Debug_logMessage("Exiting bug.n", 0)
+  Debug_logMessage("====== Exiting bug.n ======", 0)
 ExitApp
   
 Main_evalCommand(command) 
@@ -121,28 +127,93 @@ Main_quit:
   ExitApp
 Return
 
+; Create bug.n-specific directories.
+Main_makeDir(dirName) {
+  IfNotExist, %dirName%
+  {
+    FileCreateDir, %dirName%
+    If ErrorLevel 
+    {
+      MsgBox, Error (%ErrorLevel%) when creating '%dirName%'. Aborting.
+      ExitApp
+    }
+  }
+  Else 
+  {
+    FileGetAttrib, attrib, %dirName%
+    IfNotInString, attrib, D 
+    {
+      MsgBox, The file path '%dirName%' already exists and is not a directory. Aborting.
+      ExitApp
+    }
+  }
+}
+
+
+Main_setup() {
+  Local winAppDir
+
+  Main_appDir := ""
+  Main_logFile := ""
+  Main_dataDir := ""
+  Main_autoLayout := ""
+  Main_autoWindowState := ""
+
+  EnvGet, winAppDir, APPDATA
+
+  Main_appDir := winAppDir . "\bug.n"
+  Main_logFile := Main_appDir . "\bugn_log.txt"
+  Main_dataDir := Main_appDir . "\data"
+  Main_autoLayout := Main_dataDir . "\_Layout.ini"
+  Main_autoWindowState := Main_dataDir . "\_WindowState.ini"
+  
+  Main_makeDir(Main_appDir)
+  Main_makeDir(Main_dataDir)
+}
+
+
 Main_reload() 
 {
-  Local i, m
+  Local i, ncm, ncmSize
-  
-  Manager_resetWindowBorder()
   
+  ;; Reset border color, padding and witdh.
+  If Config_selBorderColor
+    DllCall("SetSysColors", "Int", 1, "Int*", 10, "UInt*", Manager_normBorderColor)
+  If (Config_borderWidth > 0) Or (Config_borderPadding >= 0 And A_OSVersion = WIN_VISTA) 
+  {
+    ncmSize := VarSetCapacity(ncm, 4 * (A_OSVersion = WIN_VISTA ? 11 : 10) + 5 * (28 + 32 * (A_IsUnicode ? 2 : 1)), 0)
+    NumPut(ncmSize, ncm, 0, "UInt")
+    DllCall("SystemParametersInfo", "UInt", 0x0029, "UInt", ncmSize, "UInt", &ncm, "UInt", 0)
+    If (Config_borderWidth > 0)
+      NumPut(Manager_borderWidth, ncm, 4, "Int")
+    If (Config_borderPadding >= 0 And A_OSVersion = WIN_VISTA)
+      NumPut(Manager_borderPadding, ncm, 40 + 5 * (28 + 32 * (A_IsUnicode ? 2 : 1)), "Int")
+    DllCall("SystemParametersInfo", "UInt", 0x002a, "UInt", ncmSize, "UInt", &ncm, "UInt", 0)
+  }
   DllCall("Shell32.dll\SHAppBarMessage", "UInt", (ABM_REMOVE := 0x1), "UInt", &Bar_appBarData)
   ;; SKAN: Crazy Scripting : Quick Launcher for Portable Apps (http://www.autohotkey.com/forum/topic22398.html)
   
   Config_init()
-  Manager_setWindowBorder()
+  ; Windows UI
+  If Config_selBorderColor {
+    SetFormat, Integer, hex
+    Manager_normBorderColor := DllCall("GetSysColor", "Int", 10)
+    SetFormat, Integer, d
+    DllCall("SetSysColors", "Int", 1, "Int*", 10, "UInt*", Config_selBorderColor)
+  }
+  If (Config_borderWidth > 0) Or (Config_borderPadding >= 0 And A_OSVersion = WIN_VISTA) {
+    ncmSize := VarSetCapacity(ncm, 4 * (A_OSVersion = WIN_VISTA ? 11 : 10) + 5 * (28 + 32 * (A_IsUnicode ? 2 : 1)), 0)
+    NumPut(ncmSize, ncm, 0, "UInt")
+    DllCall("SystemParametersInfo", "UInt", 0x0029, "UInt", ncmSize, "UInt", &ncm, "UInt", 0)
+    Manager_borderWidth := NumGet(ncm, 4, "Int")
+    Manager_borderPadding := NumGet(ncm, 40 + 5 * (28 + 32 * (A_IsUnicode ? 2 : 1)), "Int")
+    If (Config_borderWidth > 0)
+      NumPut(Config_borderWidth, ncm, 4, "Int")
+    If (Config_borderPadding >= 0 And A_OSVersion = WIN_VISTA)
+      NumPut(Config_borderPadding, ncm, 40 + 5 * (28 + 32 * (A_IsUnicode ? 2 : 1)), "Int")
+    DllCall("SystemParametersInfo", "UInt", 0x002a, "UInt", ncmSize, "UInt", &ncm, "UInt", 0)
+  }
   Bar_getHeight()
-  SysGet, m, MonitorCount
-  If Not (m = Manager_monitorCount)
-  {
-    MsgBox, 48, bug.n: Reload, The number of monitors changed. You should restart bug.n (by default with the hotkey Win+Ctrl+Shift+R).
-    If (m < Manager_monitorCount)
-    {
-      Manager_monitorCount := m
-      Manager_aMonitor := 1
-    }
-  }
   Loop, % Manager_monitorCount 
   {
     Monitor_getWorkArea(A_Index)

src/Manager.ahk

@@ -24,6 +24,10 @@ Manager_init()
   
   Manager_setWindowBorder()
   Bar_getHeight()
+  ; axes, dimensions, percentage, flipped, gapWidth
+  Manager_layoutDirty := 0
+  ; New/closed windows, active changed, 
+  Manager_windowsDirty := 0
   Manager_aMonitor := 1
   Manager_taskBarMonitor := ""
   Manager_showTaskBar := True
@@ -52,9 +56,41 @@ Manager_init()
   }
   
   Manager_registerShellHook()
+  SetTimer, Manager_maintenance_label, %Config_maintenanceInterval%
   SetTimer, Bar_loop, %Config_readinInterval%
 }
 
+; Asynchronous management of various WM properties.
+; We want to make sure that we can recover the layout and windows in the event of
+; unexpected problems.
+; Periodically check for changes to these things and save them somewhere (not over 
+; user-defined files).
+
+Manager_maintenance_label:
+  Manager_maintenance()
+Return
+
+Manager_maintenance() {
+  Local tmp
+  ;Debug_logMessage("Manager_maintenance", 2)
+  
+  ; @todo: Check for changes to the layout.
+  ;If Manager_layoutDirty {
+    ;Debug_logMessage("Saving layout state: " . Main_autoLayout, 0)
+    Config_saveSession(Config_filaPath, Main_autoLayout)
+    Manager_layoutDirty := 0
+  ;}
+
+  ; @todo: Manager_sync?
+
+  ; @todo: Check for changes to windows.
+  ;If Manager_windowsDirty {
+    ;Debug_logMessage("Saving window state: " . Main_autoWindowState, 0)
+    Manager_saveWindowState(Main_autoWindowState, Manager_monitorCount, Config_viewCount)
+    Manager_windowsDirty := 0
+  ;}
+}
+
 Manager_activateMonitor(d) 
 {
   Local aView, aWndHeight, aWndId, aWndWidth, aWndX, aWndY, v, wndId
@@ -304,6 +340,45 @@ Manager_loop(index, increment, lowerBound, upperBound)
   Return, index
 }
 
+Manager__setWinProperties(wndId, isManaged, m, tags, isDecorated, isFloating, hideTitle ) 
+{
+  Local a
+
+  If Not Instr(Manager_allWndIds, wndId ";")
+    Manager_allWndIds .= wndId ";"
+
+  If (isManaged) 
+  {
+    Manager_managedWndIds .= wndId ";"
+    Monitor_moveWindow(m, wndId)
+    Manager_#%wndId%_tags        := tags
+    Manager_#%wndId%_isDecorated := isDecorated
+    Manager_#%wndId%_isFloating  := isFloating
+    
+    If Not Config_showBorder
+      Manager_winSet("Style", "-0x40000", wndId)
+    If Not Manager_#%wndId%_isDecorated
+      Manager_winSet("Style", "-0xC00000", wndId)
+
+    a := Manager_#%wndId%_tags & (1 << (Monitor_#%m%_aView_#1 - 1))
+    If a 
+    {
+      Manager_aMonitor := m
+      Manager_winActivate(wndId)
+    } 
+    Else 
+    {
+      Manager_hideShow := True
+      Manager_winHide(wndId)
+      Manager_hideShow := False
+    }
+  }
+  If hideTitle
+    Bar_hideTitleWndIds .= wndId . ";"
+    
+  Return, a
+}
+
 ;; Accept a window to be added to the system for management.
 ;; Provide a monitor and view preference, but don't override the config.
 Manager_manage(preferredMonitor, preferredView, wndId) 
@@ -311,8 +386,9 @@ Manager_manage(preferredMonitor, preferredView, wndId)
   Local a, action, c0, hideTitle, i, isDecorated, isFloating, isManaged, l, m, n, replace, search, tags, body
   Local wndControlList0, wndId0, wndIds, wndX, wndY, wndWidth, wndHeight, wndProcessName
   
-  If Not InStr(Manager_allWndIds, wndId ";")
+  ; Manage any window only once.
-    Manager_allWndIds .= wndId ";"
+  If InStr(Manager_managedWndIds, wndId ";")
+    Return
   
   body := 0
   If Manager_isGhost(wndId) 
@@ -335,7 +411,7 @@ Manager_manage(preferredMonitor, preferredView, wndId)
     }
   }
   
-  ;; Apply rules, if the window is either a normal window or a ghost without a body.
+  ;; Apply rules if the window is either a normal window or a ghost without a body.
   If (body = 0) 
   {
     Manager_applyRules(wndId, isManaged, m, tags, isFloating, isDecorated, hideTitle, action)
@@ -349,6 +425,7 @@ Manager_manage(preferredMonitor, preferredView, wndId)
       tags := 1 << (preferredView - 1)
   }
   
+  ; @todo: Remove this application-specific code.
   WinGet, wndProcessName, ProcessName, ahk_id %wndId%
   If (wndProcessName = "chrome.exe") 
   {
@@ -358,24 +435,14 @@ Manager_manage(preferredMonitor, preferredView, wndId)
       isManaged := False
   }
   
-  If isManaged 
+  a := Manager__setWinProperties( wndId, isManaged, m, tags, isDecorated, isFloating, hideTitle)
-  {
-    If (action = "Close" Or action = "Maximize")
-      Manager_win%action%(wndId)
-    Monitor_moveWindow(m, wndId)
-
-    Manager_managedWndIds .= wndId ";"
-    Manager_#%wndId%_monitor     := m
-    Manager_#%wndId%_tags        := tags
-    Manager_#%wndId%_isDecorated := isDecorated
-    Manager_#%wndId%_isFloating  := isFloating
   
+  ; Do view placement.
+  If isManaged {
     Loop, % Config_viewCount
-    {
+      If (Manager_#%wndId%_tags & (1 << (A_Index - 1))) {
-      If (Manager_#%wndId%_tags & 1 << A_Index - 1) 
+        If (body) {
-      {
+          ; Try to position near the body.
-        If (body) 
-        {    ;; Try to position near the body.
           View_ghostWindow(m, A_Index, body, wndId)
         }
         Else 
@@ -383,30 +450,6 @@ Manager_manage(preferredMonitor, preferredView, wndId)
       }
   }
   
-    If Not Config_showBorder
-      Manager_winSet("Style", "-0x40000", wndId)
-    If Not Manager_#%wndId%_isDecorated
-      Manager_winSet("Style", "-0xC00000", wndId)
-    
-    a := Manager_#%wndId%_tags & 1 << Monitor_#%m%_aView_#1 - 1
-    If a 
-    {
-      Manager_aMonitor := m
-      Manager_winActivate(wndId)
-    } 
-    Else 
-    {
-      Manager_hideShow := True
-      Manager_winHide(wndId)
-      Manager_hideShow := False
-    }
-  }
-  
-  If hideTitle And Not InStr(Bar_hideTitleWndIds, wndId)
-    Bar_hideTitleWndIds .= wndId . ";"
-  Else If Not hideTitle
-    StringReplace, Bar_hideTitleWndIds, Bar_hideTitleWndIds, %wndId%`;, 
-  
   Return, a
 }
 
@@ -441,14 +484,21 @@ Manager_moveWindow()
 }
 
 HSHELL_WINDOWCREATED := 1
-HSHELL_WINDOWDESTROYED := 2         ;; Seems to get sent sometimes when windows are deactivated.
+;; Seems to get sent sometimes when windows are deactivated.
-HSHELL_WINDOWACTIVATED := 4         ;; At least title change.
+HSHELL_WINDOWDESTROYED := 2
+HSHELL_WINDOWACTIVATED := 4
+;; At least title change.
 HSHELL_REDRAW := 6
 ;; The following two are seen when a hung window recovers. 
-HSHELL_WINDOWREPLACED := 13         ;; lParam notes the ghost process
+;; lParam notes the ghost process
-;14                                 ;; lParam notes the recovered process
+HSHELL_WINDOWREPLACED := 13
-HSHELL_RUDEAPPACTIVATED := 32772    ;; Full-screen app activated? Root-privileged window activated?
+;; lParam notes the recovered process
-WINDOW_NOTICE := 32774              ;; When a window is signalling an application update.
+;;14
+;; Full-screen app activated? Root-privileged window activated?
+HSHELL_RUDEAPPACTIVATED := 32772
+;; When a window is signalling an application update.
+WINDOW_NOTICE := 32774
+
 /*
   Reliable messages and their meanings (note that any message may be missed if bug.n is hung):
         1 - Window shown (shown ID)
@@ -463,7 +513,8 @@ WINDOW_NOTICE := 32774              ;; When a window is signalling an applicatio
   Indications of:
     New windows
       cmd/shell may be starting a new window on message 6
-      Win+E indicates a new window with message 6 as long as the button presses are below a certain frequency.
+      Win+e indicates a new window with message 6 as long as the button
+      presses are below a certain frequency.
       Message 1 may indicate a new window started from Windows Explorer.
       There doesn't seem to be a reliable way to get all application starts.
     Closed windows
@@ -474,10 +525,10 @@ WINDOW_NOTICE := 32774              ;; When a window is signalling an applicatio
     Window event
       6 indicates when title changes which can be used 
       in the case of some applications, 32774 works for others
+      Windows events can't always be caught.
 */
-Manager_onShellMessage(wParam, lParam) 
+Manager_onShellMessage(wParam, lParam) {
-{
+  Local a, isChanged, aWndClass, aWndHeight, aWndId, aWndTitle, aWndWidth, aWndX, aWndY, m, t, wndClass, wndId, wndIds, wndPName, wndTitle, x, y
-  Local aWndClass, aWndHeight, aWndId, aWndTitle, aWndWidth, aWndX, aWndY, isChanged, m, t, wndClass, wndId, wndIds, wndPName, wndTitle, x, y
   
   SetFormat, Integer, hex
   lParam := lParam+0
@@ -492,19 +543,15 @@ Manager_onShellMessage(wParam, lParam)
   WinGet, aWndId, ID, A
   WinGetClass, aWndClass, ahk_id %aWndId%
   WinGetTitle, aWndTitle, ahk_id %aWndId%
-  If ((wParam = 4 Or wParam = 32772) And lParam = 0 And aWndClass = "Progman" And aWndTitle = "Program Manager") 
+  If ((wParam = 4 Or wParam = 32772) And lParam = 0 And aWndClass = "Progman" And aWndTitle = "Program Manager") {
-  {
-    If (Manager_monitorCount > 1) 
-    {
     MouseGetPos, x, y
     m := Monitor_get(x, y)
     If m
       Manager_aMonitor := m
-    }
     Bar_updateTitle()
   }
   
-  If (wParam = 13) 
+  If (wParam = HSHELL_WINDOWREPLACED) 
   {    ;; This shouldn't need a redraw because the window was supposedly replaced.
     Manager_unmanage(lParam)
   }
@@ -512,6 +559,13 @@ Manager_onShellMessage(wParam, lParam)
 ; {    ;; Window recovered from being hung. Maybe force a redraw.
 ; }
   
+  ;; @todo: There are two problems with the use of Manager_hideShow:
+  ;;   1) If Manager_hideShow is set when we hit this block, we won't take some actions that should eventually be taken.
+  ;;      This _may_ explain why some windows never get picked up when spamming Win+e
+  ;;   2) There is a race condition between the time that Manager_hideShow is checked and any other action which we are 
+  ;;      trying to protect against. If another process (hotkey) enters a hideShow block after Manager_hideShow has 
+  ;;      been checked here, bad things could happen. I've personally observed that windows may be permanently hidden.
+  ;;   Look into the use of AHK synchronization primitives.
   If (wParam = 1 Or wParam = 2 Or wParam = 4 Or wParam = 6 Or wParam = 32772) And lParam And Not Manager_hideShow And Not Manager_focus 
   {
     If Not wndClass And Not (wParam = 2 Or wParam = 4 Or wParam = 32772)
@@ -543,7 +597,7 @@ Manager_onShellMessage(wParam, lParam)
     If wndIds 
     {    ;; If there are new (unrecognized) windows, which are hidden ...
       If (Config_onActiveHiddenWnds = "view") 
-      {  ;; ... change the view, to shw the first hidden window
+      {  ;; ... change the view to show the first hidden window
         wndId := SubStr(wndIds, 1, InStr(wndIds, ";") - 1)
         Loop, % Config_viewCount
         {
@@ -727,6 +781,8 @@ Manager_sizeWindow()
   SendMessage, WM_SYSCOMMAND, SC_SIZE, , , ahk_id %aWndId%
 }
 
+;; @todo: This constantly tries to re-add windows that are never going to be manageable.
+;;   Manager_manage should probably ignore all windows that are already in Manager_allWndIds.
 Manager_sync(ByRef wndIds = "") 
 {
   Local a, flag, shownWndIds, v, visibleWndIds, wndId
@@ -758,7 +814,8 @@ Manager_sync(ByRef wndIds = "")
     visibleWndIds := visibleWndIds wndId%A_Index% ";"
   }
   
-  ;; Check, if a window, that is known to be visible, is actually not visible
+  ;; @todo-future: Find out why this unmanage code exists and if it's still needed.
+  ;; check, if a window, that is known to be visible, is actually not visible
   StringTrimRight, shownWndIds, shownWndIds, 1
   Loop, PARSE, shownWndIds, `;
   {
@@ -773,11 +830,217 @@ Manager_sync(ByRef wndIds = "")
   Return, a
 }
 
-;; No windows are known to the system yet.
+
-;; Try to do something smart with the initial layout.
+Manager_saveWindowState(filename, nm, nv) 
+{
+  Local allWndId, allWndIds, process, title, text, monitor, wndId, view, isManaged, isTitleHidden
+  
+  text := "; bug.n - tiling window management`n; @version " VERSION "`n`n"
+  
+  tmpfname := filename . ".tmp"
+  FileDelete, %tmpfname%
+  
+  ; Dump window ID and process name. If these two don't match an existing process, we won't try
+  ;   to recover that window.
+  StringTrimRight, allWndIds, Manager_allWndIds, 1
+  StringSplit, allWndId, allWndIds, `;
+  DetectHiddenWindows, On
+  Loop, % allWndId0 
+  {
+    wndId := allWndId%A_Index%
+    WinGet, process, ProcessName, ahk_id %wndId%
+    ; Include title for informative reasons.
+    WinGetTitle, title, ahk_id %wndId%
+    
+    ; wndId;process;Tags;Floating;Decorated;HideTitle;Managed;Title
+    
+    If ( InStr(Manager_managedWndIds, wndId . ";") > 0 ) 
+    {
+      isManaged := 1
+    }
+    else 
+    {
+      isManaged := 0
+    }
+    
+    If ( InStr(Bar_hideTitleWndIds, wndId . ";") > 0 ) 
+      isTitleHidden := 1
+    Else
+      isTitleHidden := 0
+    
+    text .= "Window " . wndId . ";" . process . ";" . Manager_#%wndId%_monitor . ";" . Manager_#%wndId%_tags . ";" . Manager_#%wndId%_isFloating . ";" . Manager_#%wndId%_isDecorated . ";" . isTitleHidden . ";" . isManaged . ";" . title . "`n"
+  }
+  DetectHiddenWindows, Off
+
+  text .= "`n"
+  
+  ; @todo: Dump window arrangements on every view. If some views or monitors have disappeared, leave their
+  ;   corresponding windows alone.
+  
+  Loop, % nm 
+  {
+    monitor := A_Index
+    Loop, % nv 
+    {
+      view := A_Index
+      ; @todo: Dump all view window lists
+      text .= "View_#" . monitor . "_#" . view . "_wndIds=" . View_#%monitor%_#%view%_wndIds . "`n"
+    }
+  }
+
+  FileAppend, %text%, %tmpfname%
+  If ErrorLevel 
+  {
+    If FileExist(tmpfname)
+      FileDelete, %tmpfname%
+  }
+  Else
+    FileMove, %tmpfname%, %filename%, 1
+}
+
+;; Restore previously saved window state.
+;; If the state is completely different, this function won't do much. However, if restoring from a crash
+;; or simply restarting bug.n, it should completely recover the window state.
+Manager__restoreWindowState(filename) 
+{
+  Local vidx, widx, i, j, m, v, candidate_set, view_set, excluded_view_set, view_m0, view_v0, view_list0, wnds0, items0, wndProc, view_var, isManaged, isFloating, isDecorated, hideTitle
+  
+  If Not FileExist(filename)
+    Return
+  
+  widx := 1
+  vidx := 1
+  
+  view_set := ""
+  excluded_view_set := ""
+  
+  ;; Read all interesting things from the file.
+  Loop, READ, %filename%
+  {
+    If (SubStr(A_LoopReadLine, 1, 5) = "View_") 
+    {
+      i := InStr(A_LoopReadLine, "#")
+      j := InStr(A_LoopReadLine, "_", false, i)
+      m := SubStr(A_LoopReadLine, i + 1, j - i - 1)
+      i := InStr(A_LoopReadLine, "#", false, j)
+      j := InStr(A_LoopReadLine, "_", false, i)
+      v := SubStr(A_LoopReadLine, i + 1, j - i - 1)
+      
+      i := InStr(A_LoopReadLine, "=", j + 1)
+      
+      
+      If (m <= Manager_monitorCount) And ( v <= Config_viewCount ) 
+      {
+        view_list%vidx% := SubStr(A_LoopReadLine, i + 1)
+        view_m%vidx% := m
+        view_v%vidx% := v
+        view_set := view_set . view_list%vidx%
+        vidx := vidx + 1
+      }
+      Else 
+      {
+        excluded_view_set := excluded_view_set . view_list%vidx%
+        Debug_logMessage("View (" . m . ", " . v . ") is no longer available (" . vidx . ")", 0)
+      }
+    }
+    Else If (SubStr(A_LoopReadLine, 1, 7) = "Window ") {
+      wnds%widx% := SubStr(A_LoopReadLine, 8)
+      widx := widx + 1
+    }
+  }
+  
+  ;Debug_logMessage("view_set: " . view_set, 1)
+  ;Debug_logMessage("excluded_view_set: " . excluded_view_set, 1)
+  
+  candidate_set := ""
+  
+  ; Scan through all defined windows. Create a candidate set of windows based on whether the properties of existing windows match.
+  Loop, % (widx - 1) 
+  {
+    StringSplit, items, wnds%A_Index%, `;
+    If ( items0 < 9 ) 
+    {
+      Debug_logMessage("Window '" . wnds%A_Index% . "' could not be processed due to parse error", 0)
+      Continue
+    }
+    
+    i := 1
+    i := items%i%
+    j := 2
+    
+    
+    DetectHiddenWindows, On
+    WinGet, wndProc, ProcessName, ahk_id %i%
+    DetectHiddenWindows, Off
+    If Not ( items%j% = wndProc ) 
+    {
+      Debug_logMessage("Window ahk_id " . i . " process '" . wndProc . "' doesn't match expected '" . items%j% . "', forgetting this window", 0)
+      Continue
+    }
+    
+    j := 8
+    isManaged := items%j%
+    
+    ; If Managed
+    If ( items%j% )
+    {
+      If ( InStr(view_set, i) = 0) 
+      {
+        If ( InStr(excluded_view_set, i) ) 
+        {
+          Debug_logMessage("Window ahk_id " . i . " is being ignored because it no longer belongs to an active view", 0)
+        }
+        Else 
+        {
+          Debug_logMessage("Window ahk_id " . i . " is being ignored because it doesn't exist in any views", 0)
+        }
+        Continue
+      }
+    }
+
+    ; Set up the window.
+    
+    j := 3
+    m := items%j%
+    j := 4
+    v := items%j%
+    j := 5
+    isFloating := items%j%
+    j := 6
+    isDecorated := items%j%
+    j := 7
+    hideTitle := items%j%
+    
+    Manager__setWinProperties(i, isManaged, m, v, isDecorated, isFloating, hideTitle )
+    ;Manager_winHide(i)
+    
+    candidate_set := candidate_set . i . ";"
+  }
+  
+  ;Debug_logMessage("candidate_set: " . candidate_set, 1)
+  
+  ; Set up all views. Must filter the window list by those from the candidate set.
+  Loop, % (vidx - 1) 
+  {
+    StringSplit, items, view_list%A_Index%, `;
+    view_set := ""
+    Loop, % items0 - 1 
+    {
+      If ( InStr(candidate_set, items%A_Index% ) > 0 )
+        view_set := view_set . items%A_Index% . ";"
+    }
+    view_var := "View_#" . view_m%A_Index% . "_#" . view_v%A_Index% . "_wndIds"
+    %view_var% := view_set
+  }
+}
+
+
+
+; No windows are known to the system yet.
+; Try to do something smart with the initial layout.
 Manager_initial_sync() 
 {
-  Local m, wnd, wndH, wndId, wndId0, wndIds, wndW, wndX, wndY
+  Local wndId0, wnd, wndX, wndY, wndW, wndH, x, y, m, len
   
   ;; Initialize lists
   ;; Note that these variables make this function non-reentrant.
@@ -786,7 +1049,11 @@ Manager_initial_sync()
     Manager_initial_sync_m#%A_Index%_wndList := ""
   }
   
-  ;; Check all visible windows against the known windows
+  ;; Use saved window placement settings to first determine
+  ;;   which monitor/view a window should be attached to.
+  Manager__restoreWindowState(Main_autoWindowState)
+  
+  ;; Check all remaining visible windows against the known windows
   WinGet, wndId, List, , , 
   Loop, % wndId 
   {
@@ -796,12 +1063,14 @@ Manager_initial_sync()
     ;; Which monitor is it on?
     wnd := wndId%A_Index%
     WinGetPos, wndX, wndY, wndW, wndH, ahk_id %wnd%
-    m := Monitor_get(wndX + wndW/2, wndY + wndH/2)
+    
+    x := wndX + wndW/2
+    y := wndY + wndH/2
+    
+    m := Monitor_get(x, y)
     If m > 0
       Manager_initial_sync_m#%m%_wndList .= wndId%A_Index% ";"
     
-    ;; @todo: What percentage of the monitor area is it occupying? (Suggest layout)
-    ;; @todo: What part of the monitor is it on? (Ordering of windows)
   }
 
   Loop, % Manager_monitorCount 
@@ -832,6 +1101,8 @@ Manager_unmanage(wndId)
 {
   Local a
   
+  ;; Do our best to make sure that any unmanaged windows are left visible.
+  Manager_winShow(wndId)
   a := Manager_#%wndId%_tags & 1 << Monitor_#%Manager_aMonitor%_aView_#1 - 1
   Loop, % Config_viewCount 
   {

src/Monitor.ahk

@@ -29,7 +29,7 @@ Monitor_init(m)
   {
     View_init(m, A_Index)
   }
-  Config_restore("Monitor", m)
+  Config_restoreLayout(Main_autoLayout, m)
   Monitor_getWorkArea(m)
   Bar_init(m)
 }
@@ -209,23 +209,9 @@ Monitor_getWorkArea(m)
 
 Monitor_moveWindow(m, wndId) 
 {
-  Local fX, fY, monitor, wndHeight, wndWidth, wndX, wndY
+  Global
   
   Manager_#%wndId%_monitor := m
-  If Manager_#%wndId%_isFloating 
-  {
-    WinGetPos, wndX, wndY, wndWidth, wndHeight, ahk_id %wndId%
-    monitor := Monitor_get(wndX+wndWidth/2, wndY+wndHeight/2)
-    If Not (m = monitor) 
-    {    ;; Move the window to the target monitor and scale it, if it does not fit on the monitor.
-      fX := Monitor_#%m%_width / Monitor_#%monitor%_width
-      fY := Monitor_#%m%_height / Monitor_#%monitor%_height
-      If (wndX-Monitor_#%monitor%_x+wndWidth > Monitor_#%m%_width) Or (wndY-Monitor_#%monitor%_y+wndHeight > Monitor_#%m%_height)
-        Manager_winMove(wndId, Monitor_#%m%_x+fX*(wndX-Monitor_#%monitor%_x), Monitor_#%m%_y+fY*(wndY-Monitor_#%monitor%_y), fX*wndWidth, fY*wndHeight)
-      Else
-        Manager_winMove(wndId, Monitor_#%m%_x+(wndX-Monitor_#%monitor%_x), Monitor_#%m%_y+(wndY-Monitor_#%monitor%_y), wndWidth, wndHeight)
-    }
-  }
 }
 
 Monitor_setWindowTag(t) 

test/UserInputTiming.ahk

@@ -0,0 +1,31 @@
+
+/*
+ * Measure the minimum delay between button presses.
+ * 
+ * Minimum observed delay: 80ms (2012/11/23)
+ */
+
+
+Start_Day:=A_YDay
+Last_Time:= (((((((A_YDay - Start_Day) * 24 ) + A_Hour ) * 60) + A_Min) * 60) + A_Sec) * 1000 + A_MSec
+Min_Delay:=1000000
+
+
+MsgBox, ms base: %Last_Time%
+
+Return
+
+
+r::
+	Cur_Time := (((((((A_YDay - Start_Day) * 24 ) + A_Hour ) * 60) + A_Min) * 60) + A_Sec) * 1000 + A_MSec
+	Difference := Cur_Time - Last_Time
+
+	If (Difference < Min_Delay)
+		Min_Delay := Difference
+
+	Last_Time := Cur_Time
+	Return
+
+q::
+	MsgBox, Min_Delay: %Min_Delay%
+	ExitApp