Fix Qnone definition in NS files.

[gnu-emacs] / src / nsfns.m

diff --git a/src/nsfns.m b/src/nsfns.m
index 642ff794c0528b89986683545392468c82a300ea..357222bb18af68159a89c5b838e3bf00da88089c 100644 (file)
--- a/src/nsfns.m
+++ b/src/nsfns.m
@@ -1,5 +1,5 @@
 /* Functions for the NeXT/Open/GNUstep and MacOSX window system.
-   Copyright (C) 1989, 1992, 1993, 1994, 2005, 2006, 2008, 2009
+   Copyright (C) 1989, 1992, 1993, 1994, 2005, 2006, 2008, 2009, 2010
      Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -80,8 +80,8 @@ extern Lisp_Object Qface_set_after_frame_default;
 extern Lisp_Object Qunderline, Qundefined;
 extern Lisp_Object Qheight, Qminibuffer, Qname, Qonly, Qwidth;
 extern Lisp_Object Qunsplittable, Qmenu_bar_lines, Qbuffer_predicate, Qtitle;
+extern Lisp_Object Qnone;
 
-Lisp_Object Qnone;
 Lisp_Object Qbuffered;
 Lisp_Object Qfontsize;
 
@@ -206,30 +206,28 @@ ns_get_window (Lisp_Object maybeFrame)
 static NSScreen *
 ns_get_screen (Lisp_Object screen)
 {
-  struct terminal *terminal = get_terminal (screen, 1);
+  struct frame *f;
+  struct terminal *terminal;
+
+  if (EQ (Qt, screen)) /* not documented */
+    return [NSScreen mainScreen];
+
+  terminal = get_terminal (screen, 1);
   if (terminal->type != output_ns)
-    // Not sure if this special case for nil is needed.  It does seem to be
-    // important in xfns.c for the make-frame call in frame-initialize,
-    // so let's keep it here for now.
-    return (NILP (screen) ? [NSScreen mainScreen] : NULL);
+    return NULL;
+
+  if (NILP (screen))
+    f = SELECTED_FRAME ();
+  else if (FRAMEP (screen))
+    f = XFRAME (screen);
   else
     {
       struct ns_display_info *dpyinfo = terminal->display_info.ns;
-      struct frame *f = dpyinfo->x_focus_frame;
-      if (!f)
-       f = dpyinfo->x_highlight_frame;
-      if (!f)
-       return NULL;
-      else
-       {
-         id window = nil;
-         Lisp_Object frame;
-         eassert (FRAME_NS_P (f));
-         XSETFRAME (frame, f);
-         window = ns_get_window (frame);
-         return window ? [window screen] : NULL;
-       }
+      f = (dpyinfo->x_focus_frame || dpyinfo->x_highlight_frame);
     }
+
+  return ((f && FRAME_NS_P (f)) ? [[FRAME_NS_VIEW (f) window] screen]
+         : NULL);
 }
 
 
@@ -2325,15 +2323,21 @@ that stands for the selected frame's display. */)
      Lisp_Object display;
 {
   int top;
+  NSScreen *screen;
   NSRect vScreen;
 
   check_ns ();
-  vScreen = [ns_get_screen (display) visibleFrame];
-  top = vScreen.origin.y == 0.0 ?
-    (int) [ns_get_screen (display) frame].size.height - vScreen.size.height : 0;
+  screen = ns_get_screen (display);
+  if (!screen)
+    return Qnil;
+
+  vScreen = [screen visibleFrame];
 
+  /* NS coordinate system is upside-down.
+     Transform to screen-specific coordinates. */
   return list4 (make_number ((int) vScreen.origin.x),
-                make_number (top),
+               make_number ((int) [screen frame].size.height
+                            - vScreen.size.height - vScreen.origin.y),
                 make_number ((int) vScreen.size.width),
                 make_number ((int) vScreen.size.height));
 }
@@ -2602,8 +2606,6 @@ syms_of_nsfns ()
 {
   int i;
 
-  Qnone = intern ("none");
-  staticpro (&Qnone);
   Qfontsize = intern ("fontsize");
   staticpro (&Qfontsize);