--- /dev/null
+/* Gutter implementation.
+ 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. */
+
+/* Specifers ripped-off from toolbar.c */
+
+#include <config.h>
+#include "lisp.h"
+
+#include "buffer.h"
+#include "frame.h"
+#include "device.h"
+#include "faces.h"
+#include "glyphs.h"
+#include "redisplay.h"
+#include "window.h"
+#include "gutter.h"
+
+Lisp_Object Vgutter[4];
+Lisp_Object Vgutter_size[4];
+Lisp_Object Vgutter_visible_p[4];
+Lisp_Object Vgutter_border_width[4];
+
+Lisp_Object Vdefault_gutter, Vdefault_gutter_visible_p;
+Lisp_Object Vdefault_gutter_width, Vdefault_gutter_height;
+Lisp_Object Vdefault_gutter_border_width;
+
+Lisp_Object Vdefault_gutter_position;
+
+#define SET_GUTTER_WAS_VISIBLE_FLAG(frame, pos, flag) \
+ do { \
+ switch (pos) \
+ { \
+ case TOP_GUTTER: \
+ (frame)->top_gutter_was_visible = flag; \
+ break; \
+ case BOTTOM_GUTTER: \
+ (frame)->bottom_gutter_was_visible = flag; \
+ break; \
+ case LEFT_GUTTER: \
+ (frame)->left_gutter_was_visible = flag; \
+ break; \
+ case RIGHT_GUTTER: \
+ (frame)->right_gutter_was_visible = flag; \
+ break; \
+ default: \
+ abort (); \
+ } \
+ } while (0)
+
+static int gutter_was_visible (struct frame* frame, enum gutter_pos pos)
+{
+ switch (pos)
+ {
+ case TOP_GUTTER:
+ return (frame)->top_gutter_was_visible;
+ case BOTTOM_GUTTER:
+ return (frame)->bottom_gutter_was_visible;
+ case LEFT_GUTTER:
+ return (frame)->left_gutter_was_visible;
+ case RIGHT_GUTTER:
+ return (frame)->right_gutter_was_visible;
+ default:
+ abort ();
+ }
+}
+
+static Lisp_Object
+frame_topmost_window (struct frame *f)
+{
+ Lisp_Object w = FRAME_ROOT_WINDOW (f);
+
+ do {
+ while (!NILP (XWINDOW (w)->vchild))
+ {
+ w = XWINDOW (w)->vchild;
+ }
+ } while (!NILP (XWINDOW (w)->hchild) && !NILP (w = XWINDOW (w)->hchild));
+
+ return w;
+}
+
+static Lisp_Object
+frame_bottommost_window (struct frame *f)
+{
+ Lisp_Object w = FRAME_ROOT_WINDOW (f);
+
+ do {
+ while (!NILP (XWINDOW (w)->vchild))
+ {
+ w = XWINDOW (w)->vchild;
+ while (!NILP (XWINDOW (w)->next))
+ {
+ w = XWINDOW (w)->next;
+ }
+ }
+ } while (!NILP (XWINDOW (w)->hchild) && !NILP (w = XWINDOW (w)->hchild));
+
+ return w;
+}
+
+#if 0
+static Lisp_Object
+frame_leftmost_window (struct frame *f)
+{
+ Lisp_Object w = FRAME_ROOT_WINDOW (f);
+
+ do {
+ while (!NILP (XWINDOW (w)->hchild))
+ {
+ w = XWINDOW (w)->hchild;
+ }
+ } while (!NILP (XWINDOW (w)->vchild) && !NILP (w = XWINDOW (w)->vchild));
+
+ return w;
+}
+
+static Lisp_Object
+frame_rightmost_window (struct frame *f)
+{
+ Lisp_Object w = FRAME_ROOT_WINDOW (f);
+
+ do {
+ while (!NILP (XWINDOW (w)->hchild))
+ {
+ w = XWINDOW (w)->hchild;
+ while (!NILP (XWINDOW (w)->next))
+ {
+ w = XWINDOW (w)->next;
+ }
+ }
+ } while (!NILP (XWINDOW (w)->vchild) && !NILP (w = XWINDOW (w)->vchild));
+ return w;
+}
+#endif
+
+/* calculate the coordinates of a gutter for the current frame and
+ selected window. we have to be careful in calculating this as we
+ need to use *two* windows, the currently selected window will give
+ us the actual height, width and contents of the gutter, but if we
+ use this for calculating the gutter positions we run into trouble
+ if it is not the window nearest the gutter. Instead we predetermine
+ the nearest window and then use that.*/
+void
+get_gutter_coords (struct frame *f, enum gutter_pos pos, int *x, int *y,
+ int *width, int *height)
+{
+ struct window
+ * top = XWINDOW (frame_topmost_window (f)),
+ * bot = XWINDOW (frame_bottommost_window (f));
+ /* The top and bottom gutters take precedence over the left and
+ right. */
+ switch (pos)
+ {
+ case TOP_GUTTER:
+ *x = FRAME_LEFT_BORDER_END (f);
+ *y = FRAME_TOP_BORDER_END (f);
+ *width = FRAME_RIGHT_BORDER_START (f)
+ - FRAME_LEFT_BORDER_END (f);
+ *height = FRAME_TOP_GUTTER_BOUNDS (f);
+ break;
+
+ case BOTTOM_GUTTER:
+ *x = FRAME_LEFT_BORDER_END (f);
+ *y = WINDOW_BOTTOM (bot)
+ - FRAME_BOTTOM_GUTTER_BOUNDS (f);
+ *width = FRAME_RIGHT_BORDER_START (f)
+ - FRAME_LEFT_BORDER_END (f);
+ *height = FRAME_BOTTOM_GUTTER_BOUNDS (f);
+ break;
+
+ case LEFT_GUTTER:
+ *x = FRAME_LEFT_BORDER_END (f);
+ *y = WINDOW_TEXT_TOP (top);
+ *width = FRAME_LEFT_GUTTER_BOUNDS (f);
+ *height = WINDOW_BOTTOM (bot)
+ - (WINDOW_TEXT_TOP (top)
+ + FRAME_BOTTOM_GUTTER_BOUNDS (f));
+ break;
+
+ case RIGHT_GUTTER:
+ *x = FRAME_RIGHT_BORDER_START (f)
+ - FRAME_RIGHT_GUTTER_BOUNDS (f);
+ *y = WINDOW_TEXT_TOP (top);
+ *width = FRAME_RIGHT_GUTTER_BOUNDS (f);
+ *height = WINDOW_BOTTOM (bot)
+ - (WINDOW_TEXT_TOP (top)
+ + FRAME_BOTTOM_GUTTER_BOUNDS (f));
+ break;
+
+ default:
+ abort ();
+ }
+}
+
+static void
+output_gutter (struct frame *f, enum gutter_pos pos)
+{
+ Lisp_Object frame;
+ Lisp_Object window = FRAME_LAST_NONMINIBUF_WINDOW (f);
+ struct device *d = XDEVICE (f->device);
+ struct window* w = XWINDOW (window);
+ int x, y, width, height, ypos;
+ int line;
+ int border_width = FRAME_GUTTER_BORDER_WIDTH (f, pos);
+ face_index findex = get_builtin_face_cache_index (w, Vgui_element_face);
+ display_line_dynarr* ddla, *cdla;
+ struct display_line *dl;
+
+ if (!f->current_display_lines)
+ f->current_display_lines = Dynarr_new (display_line);
+ if (!f->desired_display_lines)
+ f->desired_display_lines = Dynarr_new (display_line);
+
+ ddla = f->desired_display_lines;
+ cdla = f->current_display_lines;
+
+ XSETFRAME (frame, f);
+
+ get_gutter_coords (f, pos, &x, &y, &width, &height);
+ /* clear out what we want to cover */
+ /* generate some display lines */
+ generate_displayable_area (w, WINDOW_GUTTER (w, pos),
+ x + border_width, y + border_width,
+ width - 2 * border_width,
+ height - 2 * border_width, ddla, 0, findex);
+ /* Output each line. */
+ for (line = 0; line < Dynarr_length (ddla); line++)
+ {
+ output_display_line (w, cdla, ddla, line, -1, -1);
+ }
+
+ /* grab coordinates of last line and blank after it. */
+ dl = Dynarr_atp (ddla, Dynarr_length (ddla) - 1);
+ ypos = dl->ypos + dl->descent - dl->clip;
+ redisplay_clear_region (window, findex, x + border_width , ypos,
+ width - 2 * border_width, height - (ypos - y));
+
+ /* bevel the gutter area if so desired */
+ if (border_width != 0)
+ {
+ MAYBE_DEVMETH (d, bevel_area,
+ (w, findex, x, y, width, height, border_width));
+ }
+}
+
+/* sizing gutters is a pain so we try and help the user by detemining
+ what height will accomodate all lines. This is useless on left and
+ right gutters as we always have a maximal number of lines. */
+static Lisp_Object
+calculate_gutter_size (struct window *w, enum gutter_pos pos)
+{
+ struct frame* f = XFRAME (WINDOW_FRAME (w));
+ int ypos;
+ display_line_dynarr* ddla;
+ struct display_line *dl;
+
+ /* we cannot autodetect gutter sizes for the left and right as there
+ is no reasonable metric to use */
+ assert (pos == TOP_GUTTER || pos == BOTTOM_GUTTER);
+ /* degenerate case */
+ if (NILP (WINDOW_GUTTER (w, pos))
+ ||
+ !FRAME_VISIBLE_P (f))
+ return Qnil;
+
+ ddla = Dynarr_new (display_line);
+ /* generate some display lines */
+ generate_displayable_area (w, WINDOW_GUTTER (w, pos),
+ FRAME_LEFT_BORDER_END (f),
+ 0,
+ FRAME_RIGHT_BORDER_START (f)
+ - FRAME_LEFT_BORDER_END (f),
+ 200,
+ ddla, 0, 0);
+ /* grab coordinates of last line */
+ if (Dynarr_length (ddla))
+ {
+ dl = Dynarr_atp (ddla, Dynarr_length (ddla) - 1);
+ ypos = dl->ypos + dl->descent - dl->clip;
+ Dynarr_free (ddla);
+ return make_int (ypos);
+ }
+ else
+ {
+ Dynarr_free (ddla);
+ return Qnil;
+ }
+}
+
+static void
+clear_gutter (struct frame *f, enum gutter_pos pos)
+{
+ int x, y, width, height;
+ Lisp_Object window = FRAME_LAST_NONMINIBUF_WINDOW (f);
+ face_index findex = get_builtin_face_cache_index (XWINDOW (window),
+ Vgui_element_face);
+ get_gutter_coords (f, pos, &x, &y, &width, &height);
+
+ SET_GUTTER_WAS_VISIBLE_FLAG (f, pos, 0);
+
+ redisplay_clear_region (window, findex, x, y, width, height);
+}
+
+void
+update_frame_gutters (struct frame *f)
+{
+ if (f->gutter_changed || f->frame_changed || f->clear)
+ {
+ int pos;
+ /* and output */
+
+ for (pos = 0; pos < 4; pos++)
+ {
+ if (FRAME_GUTTER_VISIBLE (f, pos))
+ output_gutter (f, pos);
+ else if (gutter_was_visible (f, pos))
+ clear_gutter (f, pos);
+ }
+
+ }
+ f->gutter_changed = 0;
+}
+
+static void
+redraw_exposed_gutter (struct frame *f, enum gutter_pos pos, int x, int y,
+ int width, int height)
+{
+ int g_x, g_y, g_width, g_height;
+ int newx, newy;
+
+ get_gutter_coords (f, pos, &g_x, &g_y, &g_width, &g_height);
+
+ if (((y + height) < g_y) || (y > (g_y + g_height)))
+ return;
+ if (((x + width) < g_x) || (x > (g_x + g_width)))
+ return;
+
+ /* #### optimize this - redrawing the whole gutter for every expose
+ is very expensive. We reset the current display lines because if
+ they're being exposed they are no longer current. */
+ if (f->current_display_lines)
+ Dynarr_reset (f->current_display_lines);
+ /* we have to do this in-case there were subwindows where we are
+ redrawing, unfortunately sometimes this also generates expose
+ events resulting in an endless cycle of redsplay. */
+ newx = max (x, g_x);
+ newy = max (y, g_y);
+ width = min (x + width - newx, g_x + g_width - newx);
+ height = min (y + height - newy, g_y + g_height - newy);
+ redisplay_unmap_subwindows_maybe (f, newx, newy, width, height);
+
+ /* Even if none of the gutter is in the area, the blank region at
+ the very least must be because the first thing we did is verify
+ that some portion of the gutter is in the exposed region. */
+ output_gutter (f, pos);
+}
+
+void
+redraw_exposed_gutters (struct frame *f, int x, int y, int width,
+ int height)
+{
+ int pos;
+ for (pos = 0; pos < 4; pos++)
+ {
+ if (FRAME_GUTTER_VISIBLE (f, pos))
+ redraw_exposed_gutter (f, pos, x, y, width, height);
+ }
+}
+
+void
+free_frame_gutters (struct frame *f)
+{
+ if (f->current_display_lines)
+ Dynarr_free (f->current_display_lines);
+ if (f->desired_display_lines)
+ Dynarr_free (f->desired_display_lines);
+}
+
+static enum gutter_pos
+decode_gutter_position (Lisp_Object position)
+{
+ if (EQ (position, Qtop)) return TOP_GUTTER;
+ if (EQ (position, Qbottom)) return BOTTOM_GUTTER;
+ if (EQ (position, Qleft)) return LEFT_GUTTER;
+ if (EQ (position, Qright)) return RIGHT_GUTTER;
+ signal_simple_error ("Invalid gutter position", position);
+
+ return TOP_GUTTER; /* not reached */
+}
+
+DEFUN ("set-default-gutter-position", Fset_default_gutter_position, 1, 1, 0, /*
+Set the position that the `default-gutter' will be displayed at.
+Valid positions are 'top, 'bottom, 'left and 'right.
+See `default-gutter-position'.
+*/
+ (position))
+{
+ enum gutter_pos cur = decode_gutter_position (Vdefault_gutter_position);
+ enum gutter_pos new = decode_gutter_position (position);
+
+ if (cur != new)
+ {
+ /* The following calls will automatically cause the dirty
+ flags to be set; we delay frame size changes to avoid
+ lots of frame flickering. */
+ /* #### I think this should be GC protected. -sb */
+ hold_frame_size_changes ();
+ set_specifier_fallback (Vgutter[cur], list1 (Fcons (Qnil, Qnil)));
+ set_specifier_fallback (Vgutter[new], Vdefault_gutter);
+ set_specifier_fallback (Vgutter_size[cur], list1 (Fcons (Qnil, Qzero)));
+ set_specifier_fallback (Vgutter_size[new],
+ new == TOP_GUTTER || new == BOTTOM_GUTTER
+ ? Vdefault_gutter_height
+ : Vdefault_gutter_width);
+ set_specifier_fallback (Vgutter_border_width[cur],
+ list1 (Fcons (Qnil, Qzero)));
+ set_specifier_fallback (Vgutter_border_width[new],
+ Vdefault_gutter_border_width);
+ set_specifier_fallback (Vgutter_visible_p[cur],
+ list1 (Fcons (Qnil, Qt)));
+ set_specifier_fallback (Vgutter_visible_p[new],
+ Vdefault_gutter_visible_p);
+ Vdefault_gutter_position = position;
+ unhold_frame_size_changes ();
+ }
+
+ return position;
+}
+
+DEFUN ("default-gutter-position", Fdefault_gutter_position, 0, 0, 0, /*
+Return the position that the `default-gutter' will be displayed at.
+The `default-gutter' will only be displayed here if the corresponding
+position-specific gutter specifier does not provide a value.
+*/
+ ())
+{
+ return Vdefault_gutter_position;
+}
+
+DEFUN ("gutter-pixel-width", Fgutter_pixel_width, 0, 2, 0, /*
+Return the pixel width of the gutter at POS in LOCALE.
+POS defaults to the default gutter position. LOCALE defaults to
+the current window.
+*/
+ (pos, locale))
+{
+ int x, y, width, height;
+ enum gutter_pos p = TOP_GUTTER;
+ struct frame *f = decode_frame (FW_FRAME (locale));
+
+ if (NILP (pos))
+ pos = Vdefault_gutter_position;
+ p = decode_gutter_position (pos);
+
+ get_gutter_coords (f, p, &x, &y, &width, &height);
+ width -= (FRAME_GUTTER_BORDER_WIDTH (f, p) * 2);
+
+ return make_int (width);
+}
+
+DEFUN ("gutter-pixel-height", Fgutter_pixel_height, 0, 2, 0, /*
+Return the pixel height of the gutter at POS in LOCALE.
+POS defaults to the default gutter position. LOCALE defaults to
+the current window.
+*/
+ (pos, locale))
+{
+ int x, y, width, height;
+ enum gutter_pos p = TOP_GUTTER;
+ struct frame *f = decode_frame (FW_FRAME (locale));
+
+ if (NILP (pos))
+ pos = Vdefault_gutter_position;
+ p = decode_gutter_position (pos);
+
+ get_gutter_coords (f, p, &x, &y, &width, &height);
+ height -= (FRAME_GUTTER_BORDER_WIDTH (f, p) * 2);
+
+ return make_int (height);
+}
+
+DEFINE_SPECIFIER_TYPE (gutter);
+
+static void
+gutter_after_change (Lisp_Object specifier, Lisp_Object locale)
+{
+ MARK_GUTTER_CHANGED;
+}
+
+static void
+gutter_validate (Lisp_Object instantiator)
+{
+ if (NILP (instantiator))
+ return;
+
+ if (!STRINGP (instantiator))
+ signal_simple_error ("Gutter spec must be string or nil", instantiator);
+}
+
+DEFUN ("gutter-specifier-p", Fgutter_specifier_p, 1, 1, 0, /*
+Return non-nil if OBJECT is a gutter specifier.
+Gutter specifiers are used to specify the format of a gutter.
+The values of the variables `default-gutter', `top-gutter',
+`left-gutter', `right-gutter', and `bottom-gutter' are always
+gutter specifiers.
+
+Valid gutter instantiators are called "gutter descriptors"
+and are lists of vectors. See `default-gutter' for a description
+of the exact format.
+*/
+ (object))
+{
+ return GUTTER_SPECIFIERP (object) ? Qt : Qnil;
+}
+
+\f
+/*
+ Helper for invalidating the real specifier when default
+ specifier caching changes
+*/
+static void
+recompute_overlaying_specifier (Lisp_Object real_one[4])
+{
+ enum gutter_pos pos = decode_gutter_position (Vdefault_gutter_position);
+ Fset_specifier_dirty_flag (real_one[pos]);
+}
+
+static void
+gutter_specs_changed (Lisp_Object specifier, struct window *w,
+ Lisp_Object oldval)
+{
+ int pos;
+ for (pos = 0; pos< 4; pos++)
+ {
+ w->real_gutter_size[pos] = w->gutter_size[pos];
+ if (EQ (w->real_gutter_size[pos], Qautodetect)
+ && !NILP (w->gutter_visible_p[pos]))
+ {
+ w->real_gutter_size [pos] = calculate_gutter_size (w, pos);
+ }
+ }
+ MARK_GUTTER_CHANGED;
+ MARK_WINDOWS_CHANGED (w);
+}
+
+static void
+default_gutter_specs_changed (Lisp_Object specifier, struct window *w,
+ Lisp_Object oldval)
+{
+ recompute_overlaying_specifier (Vgutter);
+}
+
+static void
+gutter_geometry_changed_in_window (Lisp_Object specifier, struct window *w,
+ Lisp_Object oldval)
+{
+ int pos;
+ for (pos = 0; pos< 4; pos++)
+ {
+ w->real_gutter_size[pos] = w->gutter_size[pos];
+ if (EQ (w->real_gutter_size[pos], Qautodetect)
+ && !NILP (w->gutter_visible_p[pos]))
+ {
+ w->real_gutter_size [pos] = calculate_gutter_size (w, pos);
+ }
+ }
+
+ MARK_GUTTER_CHANGED;
+ MARK_WINDOWS_CHANGED (w);
+}
+
+static void
+default_gutter_size_changed_in_window (Lisp_Object specifier, struct window *w,
+ Lisp_Object oldval)
+{
+ recompute_overlaying_specifier (Vgutter_size);
+}
+
+static void
+default_gutter_border_width_changed_in_window (Lisp_Object specifier,
+ struct window *w,
+ Lisp_Object oldval)
+{
+ recompute_overlaying_specifier (Vgutter_border_width);
+}
+
+static void
+default_gutter_visible_p_changed_in_window (Lisp_Object specifier,
+ struct window *w,
+ Lisp_Object oldval)
+{
+ recompute_overlaying_specifier (Vgutter_visible_p);
+}
+
+void
+init_frame_gutters (struct frame *f)
+{
+ int pos;
+ struct window* w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
+ /* We are here as far in frame creation so cached specifiers are
+ already recomputed, and possibly modified by resource
+ initialization. We need to recalculate autodetected gutters. */
+ for (pos = 0; pos< 4; pos++)
+ {
+ w->real_gutter_size[pos] = w->gutter_size[pos];
+ if (EQ (w->gutter_size[pos], Qautodetect)
+ && !NILP (w->gutter_visible_p[pos]))
+ {
+ w->real_gutter_size [pos] = calculate_gutter_size (w, pos);
+ MARK_GUTTER_CHANGED;
+ MARK_WINDOWS_CHANGED (w);
+ }
+ }
+}
+
+void
+syms_of_gutter (void)
+{
+ DEFSUBR (Fgutter_specifier_p);
+ DEFSUBR (Fset_default_gutter_position);
+ DEFSUBR (Fdefault_gutter_position);
+ DEFSUBR (Fgutter_pixel_height);
+ DEFSUBR (Fgutter_pixel_width);
+}
+
+void
+vars_of_gutter (void)
+{
+ staticpro (&Vdefault_gutter_position);
+ Vdefault_gutter_position = Qtop;
+
+ Fprovide (Qgutter);
+}
+
+void
+specifier_type_create_gutter (void)
+{
+ INITIALIZE_SPECIFIER_TYPE (gutter, "gutter", "gutter-specifier-p");
+
+ SPECIFIER_HAS_METHOD (gutter, validate);
+ SPECIFIER_HAS_METHOD (gutter, after_change);
+}
+
+void
+specifier_vars_of_gutter (void)
+{
+ Lisp_Object fb;
+
+ DEFVAR_SPECIFIER ("default-gutter", &Vdefault_gutter /*
+Specifier for a fallback gutter.
+Use `set-specifier' to change this.
+
+The position of this gutter is specified in the function
+`default-gutter-position'. If the corresponding position-specific
+gutter (e.g. `top-gutter' if `default-gutter-position' is 'top)
+does not specify a gutter in a particular domain (usually a window),
+then the value of `default-gutter' in that domain, if any, will be
+used instead.
+
+Note that the gutter at any particular position will not be
+displayed unless its visibility flag is true and its thickness
+\(width or height, depending on orientation) is non-zero. The
+visibility is controlled by the specifiers `top-gutter-visible-p',
+`bottom-gutter-visible-p', `left-gutter-visible-p', and
+`right-gutter-visible-p', and the thickness is controlled by the
+specifiers `top-gutter-height', `bottom-gutter-height',
+`left-gutter-width', and `right-gutter-width'.
+
+Note that one of the four visibility specifiers inherits from
+`default-gutter-visibility' and one of the four thickness
+specifiers inherits from either `default-gutter-width' or
+`default-gutter-height' (depending on orientation), just
+like for the gutter description specifiers (e.g. `top-gutter')
+mentioned above.
+
+Therefore, if you are setting `default-gutter', you should control
+the visibility and thickness using `default-gutter-visible-p',
+`default-gutter-width', and `default-gutter-height', rather than
+using position-specific specifiers. That way, you will get sane
+behavior if the user changes the default gutter position.
+
+The gutter value should be a string or nil. You can attach extents and
+glyphs to the string and hence display glyphs and text in other fonts
+in the gutter area.
+
+*/ );
+
+ Vdefault_gutter = Fmake_specifier (Qgutter);
+ /* #### It would be even nicer if the specifier caching
+ automatically knew about specifier fallbacks, so we didn't
+ have to do it ourselves. */
+ set_specifier_caching (Vdefault_gutter,
+ slot_offset (struct window,
+ default_gutter),
+ default_gutter_specs_changed,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("top-gutter",
+ &Vgutter[TOP_GUTTER] /*
+Specifier for the gutter at the top of the frame.
+Use `set-specifier' to change this.
+See `default-gutter' for a description of a valid gutter instantiator.
+*/ );
+ Vgutter[TOP_GUTTER] = Fmake_specifier (Qgutter);
+ set_specifier_caching (Vgutter[TOP_GUTTER],
+ slot_offset (struct window,
+ gutter[TOP_GUTTER]),
+ gutter_specs_changed,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("bottom-gutter",
+ &Vgutter[BOTTOM_GUTTER] /*
+Specifier for the gutter at the bottom of the frame.
+Use `set-specifier' to change this.
+See `default-gutter' for a description of a valid gutter instantiator.
+
+Note that, unless the `default-gutter-position' is `bottom', by
+default the height of the bottom gutter (controlled by
+`bottom-gutter-height') is 0; thus, a bottom gutter will not be
+displayed even if you provide a value for `bottom-gutter'.
+*/ );
+ Vgutter[BOTTOM_GUTTER] = Fmake_specifier (Qgutter);
+ set_specifier_caching (Vgutter[BOTTOM_GUTTER],
+ slot_offset (struct window,
+ gutter[BOTTOM_GUTTER]),
+ gutter_specs_changed,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("left-gutter",
+ &Vgutter[LEFT_GUTTER] /*
+Specifier for the gutter at the left edge of the frame.
+Use `set-specifier' to change this.
+See `default-gutter' for a description of a valid gutter instantiator.
+
+Note that, unless the `default-gutter-position' is `left', by
+default the height of the left gutter (controlled by
+`left-gutter-width') is 0; thus, a left gutter will not be
+displayed even if you provide a value for `left-gutter'.
+*/ );
+ Vgutter[LEFT_GUTTER] = Fmake_specifier (Qgutter);
+ set_specifier_caching (Vgutter[LEFT_GUTTER],
+ slot_offset (struct window,
+ gutter[LEFT_GUTTER]),
+ gutter_specs_changed,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("right-gutter",
+ &Vgutter[RIGHT_GUTTER] /*
+Specifier for the gutter at the right edge of the frame.
+Use `set-specifier' to change this.
+See `default-gutter' for a description of a valid gutter instantiator.
+
+Note that, unless the `default-gutter-position' is `right', by
+default the height of the right gutter (controlled by
+`right-gutter-width') is 0; thus, a right gutter will not be
+displayed even if you provide a value for `right-gutter'.
+*/ );
+ Vgutter[RIGHT_GUTTER] = Fmake_specifier (Qgutter);
+ set_specifier_caching (Vgutter[RIGHT_GUTTER],
+ slot_offset (struct window,
+ gutter[RIGHT_GUTTER]),
+ gutter_specs_changed,
+ 0, 0);
+
+ /* initially, top inherits from default; this can be
+ changed with `set-default-gutter-position'. */
+ fb = list1 (Fcons (Qnil, Qnil));
+ set_specifier_fallback (Vdefault_gutter, fb);
+ set_specifier_fallback (Vgutter[TOP_GUTTER], Vdefault_gutter);
+ set_specifier_fallback (Vgutter[BOTTOM_GUTTER], fb);
+ set_specifier_fallback (Vgutter[LEFT_GUTTER], fb);
+ set_specifier_fallback (Vgutter[RIGHT_GUTTER], fb);
+
+ DEFVAR_SPECIFIER ("default-gutter-height", &Vdefault_gutter_height /*
+*Height of the default gutter, if it's oriented horizontally.
+This is a specifier; use `set-specifier' to change it.
+
+The position of the default gutter is specified by the function
+`set-default-gutter-position'. If the corresponding position-specific
+gutter thickness specifier (e.g. `top-gutter-height' if
+`default-gutter-position' is 'top) does not specify a thickness in a
+particular domain (a window or a frame), then the value of
+`default-gutter-height' or `default-gutter-width' (depending on the
+gutter orientation) in that domain, if any, will be used instead.
+
+Note that `default-gutter-height' is only used when
+`default-gutter-position' is 'top or 'bottom, and `default-gutter-width'
+is only used when `default-gutter-position' is 'left or 'right.
+
+Note that all of the position-specific gutter thickness specifiers
+have a fallback value of zero when they do not correspond to the
+default gutter. Therefore, you will have to set a non-zero thickness
+value if you want a position-specific gutter to be displayed.
+
+If you set the height to 'autodetect the size of the gutter will be
+calculated to be large enough to hold the contents of the gutter. This
+is the default.
+*/ );
+ Vdefault_gutter_height = Fmake_specifier (Qgeneric);
+ set_specifier_caching (Vdefault_gutter_height,
+ slot_offset (struct window,
+ default_gutter_height),
+ default_gutter_size_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("default-gutter-width", &Vdefault_gutter_width /*
+*Width of the default gutter, if it's oriented vertically.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vdefault_gutter_width = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vdefault_gutter_width,
+ slot_offset (struct window,
+ default_gutter_width),
+ default_gutter_size_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("top-gutter-height",
+ &Vgutter_size[TOP_GUTTER] /*
+*Height of the top gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_size[TOP_GUTTER] = Fmake_specifier (Qgeneric);
+ set_specifier_caching (Vgutter_size[TOP_GUTTER],
+ slot_offset (struct window,
+ gutter_size[TOP_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("bottom-gutter-height",
+ &Vgutter_size[BOTTOM_GUTTER] /*
+*Height of the bottom gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_size[BOTTOM_GUTTER] = Fmake_specifier (Qgeneric);
+ set_specifier_caching (Vgutter_size[BOTTOM_GUTTER],
+ slot_offset (struct window,
+ gutter_size[BOTTOM_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("left-gutter-width",
+ &Vgutter_size[LEFT_GUTTER] /*
+*Width of left gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_size[LEFT_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_size[LEFT_GUTTER],
+ slot_offset (struct window,
+ gutter_size[LEFT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("right-gutter-width",
+ &Vgutter_size[RIGHT_GUTTER] /*
+*Width of right gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_size[RIGHT_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_size[RIGHT_GUTTER],
+ slot_offset (struct window,
+ gutter_size[RIGHT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ fb = Qnil;
+#ifdef HAVE_TTY
+ fb = Fcons (Fcons (list1 (Qtty), Qautodetect), fb);
+#endif
+#ifdef HAVE_X_WINDOWS
+ fb = Fcons (Fcons (list1 (Qx), Qautodetect), fb);
+#endif
+#ifdef HAVE_MS_WINDOWS
+ fb = Fcons (Fcons (list1 (Qmswindows), Qautodetect), fb);
+#endif
+ if (!NILP (fb))
+ set_specifier_fallback (Vdefault_gutter_height, fb);
+
+ fb = Qnil;
+#ifdef HAVE_TTY
+ fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
+#endif
+#ifdef HAVE_X_WINDOWS
+ fb = Fcons (Fcons (list1 (Qx), make_int (DEFAULT_GUTTER_WIDTH)), fb);
+#endif
+#ifdef HAVE_MS_WINDOWS
+ fb = Fcons (Fcons (list1 (Qmswindows),
+ make_int (DEFAULT_GUTTER_WIDTH)), fb);
+#endif
+ if (!NILP (fb))
+ set_specifier_fallback (Vdefault_gutter_width, fb);
+
+ set_specifier_fallback (Vgutter_size[TOP_GUTTER], Vdefault_gutter_height);
+ fb = list1 (Fcons (Qnil, Qzero));
+ set_specifier_fallback (Vgutter_size[BOTTOM_GUTTER], fb);
+ set_specifier_fallback (Vgutter_size[LEFT_GUTTER], fb);
+ set_specifier_fallback (Vgutter_size[RIGHT_GUTTER], fb);
+
+ DEFVAR_SPECIFIER ("default-gutter-border-width",
+ &Vdefault_gutter_border_width /*
+*Width of the border around the default gutter.
+This is a specifier; use `set-specifier' to change it.
+
+The position of the default gutter is specified by the function
+`set-default-gutter-position'. If the corresponding position-specific
+gutter border width specifier (e.g. `top-gutter-border-width' if
+`default-gutter-position' is 'top) does not specify a border width in a
+particular domain (a window or a frame), then the value of
+`default-gutter-border-width' in that domain, if any, will be used
+instead.
+
+*/ );
+ Vdefault_gutter_border_width = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vdefault_gutter_border_width,
+ slot_offset (struct window,
+ default_gutter_border_width),
+ default_gutter_border_width_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("top-gutter-border-width",
+ &Vgutter_border_width[TOP_GUTTER] /*
+*Border width of the top gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_border_width[TOP_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_border_width[TOP_GUTTER],
+ slot_offset (struct window,
+ gutter_border_width[TOP_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("bottom-gutter-border-width",
+ &Vgutter_border_width[BOTTOM_GUTTER] /*
+*Border width of the bottom gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_border_width[BOTTOM_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_border_width[BOTTOM_GUTTER],
+ slot_offset (struct window,
+ gutter_border_width[BOTTOM_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("left-gutter-border-width",
+ &Vgutter_border_width[LEFT_GUTTER] /*
+*Border width of left gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_border_width[LEFT_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_border_width[LEFT_GUTTER],
+ slot_offset (struct window,
+ gutter_border_width[LEFT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("right-gutter-border-width",
+ &Vgutter_border_width[RIGHT_GUTTER] /*
+*Border width of right gutter.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-height' for more information.
+*/ );
+ Vgutter_border_width[RIGHT_GUTTER] = Fmake_specifier (Qnatnum);
+ set_specifier_caching (Vgutter_border_width[RIGHT_GUTTER],
+ slot_offset (struct window,
+ gutter_border_width[RIGHT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ fb = Qnil;
+#ifdef HAVE_TTY
+ fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
+#endif
+#ifdef HAVE_X_WINDOWS
+ fb = Fcons (Fcons (list1 (Qx), make_int (DEFAULT_GUTTER_BORDER_WIDTH)), fb);
+#endif
+#ifdef HAVE_MS_WINDOWS
+ fb = Fcons (Fcons (list1 (Qmswindows), make_int (DEFAULT_GUTTER_BORDER_WIDTH)), fb);
+#endif
+ if (!NILP (fb))
+ set_specifier_fallback (Vdefault_gutter_border_width, fb);
+
+ set_specifier_fallback (Vgutter_border_width[TOP_GUTTER], Vdefault_gutter_border_width);
+ fb = list1 (Fcons (Qnil, Qzero));
+ set_specifier_fallback (Vgutter_border_width[BOTTOM_GUTTER], fb);
+ set_specifier_fallback (Vgutter_border_width[LEFT_GUTTER], fb);
+ set_specifier_fallback (Vgutter_border_width[RIGHT_GUTTER], fb);
+
+ DEFVAR_SPECIFIER ("default-gutter-visible-p", &Vdefault_gutter_visible_p /*
+*Whether the default gutter is visible.
+This is a specifier; use `set-specifier' to change it.
+
+The position of the default gutter is specified by the function
+`set-default-gutter-position'. If the corresponding position-specific
+gutter visibility specifier (e.g. `top-gutter-visible-p' if
+`default-gutter-position' is 'top) does not specify a visible-p value
+in a particular domain (a window or a frame), then the value of
+`default-gutter-visible-p' in that domain, if any, will be used
+instead.
+
+`default-gutter-visible-p' and all of the position-specific gutter
+visibility specifiers have a fallback value of true.
+*/ );
+ Vdefault_gutter_visible_p = Fmake_specifier (Qboolean);
+ set_specifier_caching (Vdefault_gutter_visible_p,
+ slot_offset (struct window,
+ default_gutter_visible_p),
+ default_gutter_visible_p_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("top-gutter-visible-p",
+ &Vgutter_visible_p[TOP_GUTTER] /*
+*Whether the top gutter is visible.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-visible-p' for more information.
+*/ );
+ Vgutter_visible_p[TOP_GUTTER] = Fmake_specifier (Qboolean);
+ set_specifier_caching (Vgutter_visible_p[TOP_GUTTER],
+ slot_offset (struct window,
+ gutter_visible_p[TOP_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("bottom-gutter-visible-p",
+ &Vgutter_visible_p[BOTTOM_GUTTER] /*
+*Whether the bottom gutter is visible.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-visible-p' for more information.
+*/ );
+ Vgutter_visible_p[BOTTOM_GUTTER] = Fmake_specifier (Qboolean);
+ set_specifier_caching (Vgutter_visible_p[BOTTOM_GUTTER],
+ slot_offset (struct window,
+ gutter_visible_p[BOTTOM_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("left-gutter-visible-p",
+ &Vgutter_visible_p[LEFT_GUTTER] /*
+*Whether the left gutter is visible.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-visible-p' for more information.
+*/ );
+ Vgutter_visible_p[LEFT_GUTTER] = Fmake_specifier (Qboolean);
+ set_specifier_caching (Vgutter_visible_p[LEFT_GUTTER],
+ slot_offset (struct window,
+ gutter_visible_p[LEFT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ DEFVAR_SPECIFIER ("right-gutter-visible-p",
+ &Vgutter_visible_p[RIGHT_GUTTER] /*
+*Whether the right gutter is visible.
+This is a specifier; use `set-specifier' to change it.
+
+See `default-gutter-visible-p' for more information.
+*/ );
+ Vgutter_visible_p[RIGHT_GUTTER] = Fmake_specifier (Qboolean);
+ set_specifier_caching (Vgutter_visible_p[RIGHT_GUTTER],
+ slot_offset (struct window,
+ gutter_visible_p[RIGHT_GUTTER]),
+ gutter_geometry_changed_in_window,
+ 0, 0);
+
+ /* initially, top inherits from default; this can be
+ changed with `set-default-gutter-position'. */
+ fb = list1 (Fcons (Qnil, Qt));
+ set_specifier_fallback (Vdefault_gutter_visible_p, fb);
+ set_specifier_fallback (Vgutter_visible_p[TOP_GUTTER],
+ Vdefault_gutter_visible_p);
+ set_specifier_fallback (Vgutter_visible_p[BOTTOM_GUTTER], fb);
+ set_specifier_fallback (Vgutter_visible_p[LEFT_GUTTER], fb);
+ set_specifier_fallback (Vgutter_visible_p[RIGHT_GUTTER], fb);
+
+}
projects / chise / xemacs-chise.git.1 / blobdiff