(Fwindow_tree): Remove unused var alist.

[gnu-emacs] / src / window.c

diff --git a/src/window.c b/src/window.c
index 36d0c89bc43fe4578af4e0689653e5474af55d25..96cafc5820e4400400a024e7b05a9ee4bbfbec85 100644 (file)
--- a/src/window.c
+++ b/src/window.c
@@ -273,7 +273,6 @@ make_window ()
   XSETWINDOW (val, p);
   XSETFASTINT (p->last_point, 0);
   p->frozen_window_start_p = 0;
-  p->height_fixed_p = 0;
   p->last_cursor_off_p = p->cursor_off_p = 0;
   p->left_margin_cols = Qnil;
   p->right_margin_cols = Qnil;
@@ -683,7 +682,10 @@ coordinates_in_window (w, x, y)
 
   /* Outside any interesting column?  */
   if (*x < left_x || *x > right_x)
-    return ON_SCROLL_BAR;
+    {
+      *y -= top_y;
+      return ON_SCROLL_BAR;
+    }
 
   lmargin_width = window_box_width (w, LEFT_MARGIN_AREA);
   rmargin_width = window_box_width (w, RIGHT_MARGIN_AREA);
@@ -740,9 +742,9 @@ coordinates_in_window (w, x, y)
              ? (*x < right_x - WINDOW_RIGHT_FRINGE_WIDTH (w))
              : (*x >= right_x - rmargin_width)))
        {
-         *x -= right_x;
-         if (!WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w))
-           *x -= WINDOW_RIGHT_FRINGE_WIDTH (w);
+         *x -= right_x - rmargin_width;
+         if (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w))
+           *x += WINDOW_RIGHT_FRINGE_WIDTH (w);
          *y -= top_y;
          return ON_RIGHT_MARGIN;
        }
@@ -754,7 +756,7 @@ coordinates_in_window (w, x, y)
     }
 
   /* Everything special ruled out - must be on text area */
-  *x -= left_x + WINDOW_LEFT_FRINGE_WIDTH (w);
+  *x -= text_left;
   *y -= top_y;
   return ON_TEXT;
 }
@@ -1030,7 +1032,8 @@ if it isn't already recorded.  */)
 
   if (! NILP (update)
       && ! (! NILP (w->window_end_valid)
-           && XFASTINT (w->last_modified) >= MODIFF))
+           && XFASTINT (w->last_modified) >= MODIFF)
+      && !noninteractive)
     {
       struct text_pos startp;
       struct it it;
@@ -2438,27 +2441,22 @@ window_fixed_size_p (w, width_p, check_siblings_p)
     }
   else if (BUFFERP (w->buffer))
     {
-      if (w->height_fixed_p && !width_p)
-       fixed_p = 1;
-      else
-       {
-         struct buffer *old = current_buffer;
-         Lisp_Object val;
+      struct buffer *old = current_buffer;
+      Lisp_Object val;
 
-         current_buffer = XBUFFER (w->buffer);
-         val = find_symbol_value (Qwindow_size_fixed);
-         current_buffer = old;
+      current_buffer = XBUFFER (w->buffer);
+      val = find_symbol_value (Qwindow_size_fixed);
+      current_buffer = old;
 
-         fixed_p = 0;
-         if (!EQ (val, Qunbound))
-           {
-             fixed_p = !NILP (val);
+      fixed_p = 0;
+      if (!EQ (val, Qunbound))
+       {
+         fixed_p = !NILP (val);
 
-             if (fixed_p
-                 && ((EQ (val, Qheight) && width_p)
-                     || (EQ (val, Qwidth) && !width_p)))
-               fixed_p = 0;
-           }
+         if (fixed_p
+             && ((EQ (val, Qheight) && width_p)
+                 || (EQ (val, Qwidth) && !width_p)))
+           fixed_p = 0;
        }
 
       /* Can't tell if this one is resizable without looking at
@@ -6231,6 +6229,84 @@ usage: (save-window-excursion BODY ...)  */)
   return unbind_to (count, val);
 }
 
+
+\f
+/***********************************************************************
+                           Window Split Tree
+ ***********************************************************************/
+
+static Lisp_Object
+window_tree (w)
+     struct window *w;
+{
+  Lisp_Object tail = Qnil;
+  Lisp_Object result = Qnil;
+
+  while (w)
+    {
+      Lisp_Object wn;
+
+      XSETWINDOW (wn, w);
+      if (!NILP (w->hchild))
+       wn = Fcons (Qnil, Fcons (Fwindow_edges (wn),
+                                window_tree (XWINDOW (w->hchild))));
+      else if (!NILP (w->vchild))
+       wn = Fcons (Qt, Fcons (Fwindow_edges (wn),
+                              window_tree (XWINDOW (w->vchild))));
+
+      if (NILP (result))
+       {
+         result = tail = Fcons (wn, Qnil);
+       }
+      else
+       {
+         XSETCDR (tail, Fcons (wn, Qnil));
+         tail = XCDR (tail);
+       }
+
+      w = NILP (w->next) ? 0 : XWINDOW (w->next);
+    }
+
+  return result;
+}
+
+
+
+DEFUN ("window-tree", Fwindow_tree, Swindow_tree,
+       0, 1, 0,
+       doc: /* Return the window tree for frame FRAME.
+
+The return value is a list of the form (ROOT MINI), where ROOT
+represents the window tree of the frame's root window, and MINI
+is the frame's minibuffer window.
+
+If the root window is not split, ROOT is the root window itself.
+Otherwise, ROOT is a list (DIR EDGES W1 W2 ...) where DIR is nil for a
+horizontal split, and t for a vertical split, EDGES gives the combined
+size and position of the subwindows in the split, and the rest of the
+elements are the subwindows in the split.  Each of the subwindows may
+again be a window or a list representing a window split, and so on.
+EDGES is a list \(LEFT TOP RIGHT BOTTOM) as returned by `window-edges'.
+
+If FRAME is nil or omitted, return information on the currently
+selected frame.  */)
+     (frame)
+     Lisp_Object frame;
+{
+  FRAME_PTR f;
+
+  if (NILP (frame))
+    frame = selected_frame;
+
+  CHECK_FRAME (frame);
+  f = XFRAME (frame);
+
+  if (!FRAME_LIVE_P (f))
+    return Qnil;
+
+  return window_tree (XWINDOW (FRAME_ROOT_WINDOW (f)));
+}
+
 \f
 /***********************************************************************
                            Marginal Areas
@@ -7037,6 +7113,7 @@ The selected frame is the one whose configuration has changed.  */);
   defsubr (&Sset_window_configuration);
   defsubr (&Scurrent_window_configuration);
   defsubr (&Ssave_window_excursion);
+  defsubr (&Swindow_tree);
   defsubr (&Sset_window_margins);
   defsubr (&Swindow_margins);
   defsubr (&Sset_window_fringes);