--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gutter.h	Mon Aug 13 11:13:30 2007 +0200
@@ -0,0 +1,127 @@
+/* Define general gutter support.
+   Copyright (C) 1999 Andy Piper.
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+#ifndef INCLUDED_gutter_h_
+#define INCLUDED_gutter_h_
+
+#include "specifier.h"
+
+#define DEVICE_SUPPORTS_GUTTERS_P(d) HAS_DEVMETH_P (d, output_frame_gutters)
+
+DECLARE_SPECIFIER_TYPE (gutter);
+#define XGUTTER_SPECIFIER(x) XSPECIFIER_TYPE (x, gutter)
+#define XSETGUTTER_SPECIFIER(x, p) XSETSPECIFIER_TYPE (x, p, gutter)
+#define GUTTER_SPECIFIERP(x) SPECIFIER_TYPEP (x, gutter)
+#define CHECK_GUTTER_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, gutter)
+#define CONCHECK_GUTTER_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, gutter)
+
+#define DEFAULT_GUTTER_WIDTH		40
+#define DEFAULT_GUTTER_BORDER_WIDTH	2
+
+enum gutter_pos
+{
+  TOP_GUTTER     = 0,
+  BOTTOM_GUTTER  = 1,
+  LEFT_GUTTER    = 2,
+  RIGHT_GUTTER   = 3
+};
+
+/* Iterate over all possible gutter positions */
+#define GUTTER_POS_LOOP(var) \
+for (var = (enum gutter_pos) 0; var < 4; var = (enum gutter_pos) (var + 1))
+
+extern Lisp_Object Qgutter;
+
+extern Lisp_Object Vgutter_size[4];
+extern Lisp_Object Vgutter_border_width[4];
+void update_frame_gutters (struct frame *f);
+void init_frame_gutters (struct frame *f);
+void init_device_gutters (struct device *d);
+void init_global_gutters (struct device *d);
+void free_frame_gutters (struct frame *f);
+void redraw_exposed_gutters (struct frame *f, int x, int y, int width,
+			     int height);
+void reset_gutter_display_lines (struct frame* f);
+
+#define WINDOW_GUTTER_BORDER_WIDTH(w, pos) \
+(NILP ((w)->gutter_border_width[pos]) ? 0 : XINT ((w)->gutter_border_width[pos]))
+#define WINDOW_GUTTER_SIZE(w, pos) \
+(NILP ((w)->gutter_size[pos]) ? 0 : XINT ((w)->gutter_size[pos]))
+#define WINDOW_GUTTER_SIZE_INTERNAL(w, pos) \
+(NILP ((w)->real_gutter_size[pos]) ? 0 : XINT ((w)->real_gutter_size[pos]))
+#define WINDOW_GUTTER_VISIBLE(w, pos) \
+((w)->gutter_visible_p[pos])
+#define WINDOW_GUTTER(w, pos) \
+((w)->gutter[pos])
+
+#define WINDOW_REAL_GUTTER_SIZE(w, pos)	\
+  (!NILP (WINDOW_GUTTER_VISIBLE (w, pos))		\
+   ? WINDOW_GUTTER_SIZE_INTERNAL (w, pos)	\
+   : 0)
+#define WINDOW_REAL_GUTTER_VISIBLE(f, pos)	\
+   (WINDOW_REAL_GUTTER_SIZE (f, pos) > 0)
+#define WINDOW_REAL_GUTTER_BORDER_WIDTH(f, pos)	\
+  ((!NILP (WINDOW_GUTTER_VISIBLE (f, pos))		\
+   && WINDOW_GUTTER_SIZE_INTERNAL (f,pos) > 0)	\
+   ? WINDOW_GUTTER_BORDER_WIDTH (f, pos)	\
+   : 0)
+#define WINDOW_REAL_GUTTER_BOUNDS(f, pos)	\
+   (WINDOW_REAL_GUTTER_SIZE (f,pos) + 		\
+    2 * WINDOW_REAL_GUTTER_BORDER_WIDTH (f,pos))
+
+/* these macros predicate size on position and type of window */
+#define WINDOW_REAL_TOP_GUTTER_BOUNDS(w)	\
+   ((!MINI_WINDOW_P (w) && window_is_highest (w)) ?	\
+   WINDOW_REAL_GUTTER_BOUNDS (w,TOP_GUTTER) : 0)
+#define WINDOW_REAL_BOTTOM_GUTTER_BOUNDS(w)	\
+   ((!MINI_WINDOW_P (w) && window_is_lowest (w)) ?	\
+   WINDOW_REAL_GUTTER_BOUNDS (w,BOTTOM_GUTTER) : 0)
+#define WINDOW_REAL_LEFT_GUTTER_BOUNDS(w)	\
+   ((!MINI_WINDOW_P (w) && window_is_leftmost (w)) ?	\
+   WINDOW_REAL_GUTTER_BOUNDS (w,LEFT_GUTTER) : 0)
+#define WINDOW_REAL_RIGHT_GUTTER_BOUNDS(w)	\
+   ((!MINI_WINDOW_P (w) && window_is_rightmost (w)) ?	\
+   WINDOW_REAL_GUTTER_BOUNDS (w,RIGHT_GUTTER) : 0)
+
+#define FRAME_GUTTER_VISIBLE(f, pos) \
+   WINDOW_REAL_GUTTER_VISIBLE (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), pos)
+#define FRAME_GUTTER_SIZE(f, pos) \
+   WINDOW_REAL_GUTTER_SIZE (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), pos)
+#define FRAME_GUTTER_BOUNDS(f, pos) \
+   WINDOW_REAL_GUTTER_BOUNDS (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), pos)
+#define FRAME_GUTTER_BORDER_WIDTH(f, pos) \
+   WINDOW_REAL_GUTTER_BORDER_WIDTH (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), pos)
+
+#define FRAME_GUTTER(f, pos) \
+WINDOW_GUTTER (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), pos)
+
+/* these macros predicate size on position and type of window */
+#define FRAME_TOP_GUTTER_BOUNDS(f) \
+   WINDOW_REAL_GUTTER_BOUNDS (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), TOP_GUTTER)
+#define FRAME_BOTTOM_GUTTER_BOUNDS(f) \
+   WINDOW_REAL_GUTTER_BOUNDS (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), BOTTOM_GUTTER)
+#define FRAME_LEFT_GUTTER_BOUNDS(f) \
+   WINDOW_REAL_GUTTER_BOUNDS (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), LEFT_GUTTER)
+#define FRAME_RIGHT_GUTTER_BOUNDS(f) \
+   WINDOW_REAL_GUTTER_BOUNDS (XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f)), RIGHT_GUTTER)
+
+#endif /* INCLUDED_gutter_h_ */