From b1667ef782af47a55d438382e7e63b75f77a1054 Mon Sep 17 00:00:00 2001
From: Jack Jansen <jack.jansen@cwi.nl>
Date: Thu, 26 Sep 1996 16:17:08 +0000
Subject: Menu callbacks can be strings, in which case they will be looked up
 in the top window. The menubar is redrawn in the event loop in stead of for
 every change.

---
 Mac/Lib/FrameWork.py | 88 +++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 76 insertions(+), 12 deletions(-)

diff --git a/Mac/Lib/FrameWork.py b/Mac/Lib/FrameWork.py
index dc07f5e..5741972 100644
--- a/Mac/Lib/FrameWork.py
+++ b/Mac/Lib/FrameWork.py
@@ -23,6 +23,7 @@ from QuickDraw import *
 #from Sound import *
 from Win import *
 from Windows import *
+import types
 
 import EasyDialogs
 
@@ -95,6 +96,7 @@ class Application:
 	
 	def __init__(self, nomenubar=0):
 		self.quitting = 0
+		self.needmenubarredraw = 0
 		self._windows = {}
 		if nomenubar:
 			self.menubar = None
@@ -102,7 +104,7 @@ class Application:
 			self.makemenubar()
 	
 	def makemenubar(self):
-		self.menubar = MenuBar()
+		self.menubar = MenuBar(self)
 		AppleMenu(self.menubar, self.getabouttext(), self.do_about)
 		self.makeusermenus()
 
@@ -165,6 +167,9 @@ class Application:
 		pass
 	
 	def getevent(self, mask = everyEvent, wait = 0):
+		if self.needmenubarredraw:
+			DrawMenuBar()
+			self.needmenubarredraw = 0
 		ok, event = WaitNextEvent(mask, wait)
 		return ok, event
 			
@@ -391,21 +396,30 @@ class MenuBar:
 	nextid = 1	# Necessarily a class variable
 	
 	def getnextid(self):
-		id = self.nextid
-		self.nextid = id+1
+		id = MenuBar.nextid
+		MenuBar.nextid = id+1
 		return id
 	
-	def __init__(self):
+	def __init__(self, parent=None):
+		self.parent = parent
 		ClearMenuBar()
 		self.bar = GetMenuBar()
 		self.menus = {}
 	
+	# XXX necessary?
+	def close(self):
+		self.parent = None
+		self.bar = None
+	
 	def addmenu(self, title, after = 0):
 		id = self.getnextid()
 		if DEBUG: print 'Newmenu', title, id # XXXX
 		m = NewMenu(id, title)
 		m.InsertMenu(after)
-		DrawMenuBar()	# XXX appears slow! better do this when we're done. jvr
+		if self.parent:
+			self.parent.needmenubarredraw = 1
+		else:
+			DrawMenuBar()
 		return id, m
 		
 	def delmenu(self, id):
@@ -414,11 +428,40 @@ class MenuBar:
 	
 	def addpopup(self, title = ''):
 		return self.addmenu(title, -1)
-	
-	def install(self):
-		self.bar.SetMenuBar()
-		DrawMenuBar()
-	
+
+# Useless:	
+#	def install(self):
+#		if not self.bar: return
+#		SetMenuBar(self.bar)
+#		if self.parent:
+#			self.parent.needmenubarredraw = 1
+#		else:
+#			DrawMenuBar()
+	
+	def fixmenudimstate(self):
+		for m in self.menus.keys():
+			menu = self.menus[m]
+			if menu.__class__ == FrameWork.AppleMenu:
+				continue
+			for i in range(len(menu.items)):
+				label, shortcut, callback, kind = menu.items[i]
+				if type(callback) == types.StringType:
+					wid = Win.FrontWindow()
+					if wid and self.parent._windows.has_key(wid):
+						window = self.parent._windows[wid]
+						if hasattr(window, "domenu_" + callback):
+							menu.menu.EnableItem(i + 1)
+						elif hasattr(self.parent, "domenu_" + callback):
+							menu.menu.EnableItem(i + 1)
+						else:
+							menu.menu.DisableItem(i + 1)
+					elif hasattr(self.parent, "domenu_" + callback):
+						menu.menu.EnableItem(i + 1)
+					else:
+						menu.menu.DisableItem(i + 1)
+				elif callback:
+					pass
+					
 	def dispatch(self, id, item, window, event):
 		if self.menus.has_key(id):
 			self.menus[id].dispatch(id, item, window, event)
@@ -472,9 +515,30 @@ class Menu:
 		return sub
 	
 	def dispatch(self, id, item, window, event):
-		title, shortcut, callback, type = self.items[item-1]
+		title, shortcut, callback, mtype = self.items[item-1]
 		if callback:
-			callback(id, item, window, event)
+			if not self.bar.parent or type(callback) <> types.StringType:
+				menuhandler = callback
+			else: 
+				# callback is string
+				wid = Win.FrontWindow()
+				if wid and self.bar.parent._windows.has_key(wid):
+					window = self.bar.parent._windows[wid]
+					if hasattr(window, "domenu_" + callback):
+						menuhandler = getattr(window, "domenu_" + callback)
+					elif hasattr(self.bar.parent, "domenu_" + callback):
+						menuhandler = getattr(self.bar.parent, "domenu_" + callback)
+					else:
+						# nothing we can do. we shouldn't have come this far
+						# since the menu item should have been disabled...
+						return
+				elif hasattr(self.bar.parent, "domenu_" + callback):
+					menuhandler = getattr(self.bar.parent, "domenu_" + callback)
+				else:
+					# nothing we can do. we shouldn't have come this far
+					# since the menu item should have been disabled...
+					return
+			menuhandler(id, item, window, event)
 
 	def enable(self, onoff):
 		if onoff:
-- 
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