/* Window creation, deletion and examination for GNU Emacs.
Does not include redisplay.
- Copyright (C) 1985, 86, 87, 93, 94, 95 Free Software Foundation, Inc.
+ Copyright (C) 1985, 86, 87, 93, 94, 95, 96 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#include <config.h>
#include "lisp.h"
/* Hook run at end of temp_output_buffer_show. */
Lisp_Object Qtemp_buffer_show_hook;
-/* Fdisplay_buffer always splits the largest window
+/* Fdisplay_buffer always splits the largest window
if that window is more than this high. */
int split_height_threshold;
/* Incremented for each window created. */
static int sequence_number;
+/* Nonzero after init_window_once has finished. */
+static int window_initialized;
+
#define min(a, b) ((a) < (b) ? (a) : (b))
+
+extern Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions;
\f
DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0,
- "Returns t if OBJ is a window.")
- (obj)
- Lisp_Object obj;
+ "Returns t if OBJECT is a window.")
+ (object)
+ Lisp_Object object;
{
- return WINDOWP (obj) ? Qt : Qnil;
+ return WINDOWP (object) ? Qt : Qnil;
}
DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0,
- "Returns t if OBJ is a window which is currently visible.")
- (obj)
- Lisp_Object obj;
+ "Returns t if OBJECT is a window which is currently visible.")
+ (object)
+ Lisp_Object object;
{
- return (WINDOWP (obj) && ! NILP (XWINDOW (obj)->buffer) ? Qt : Qnil);
+ return (WINDOWP (object) && ! NILP (XWINDOW (object)->buffer) ? Qt : Qnil);
}
Lisp_Object
if (*y == top + window_height - 1
&& ! MINI_WINDOW_P (w))
return 2;
-
+
/* Is the character in the right border? */
if (*x == left + width - 1
&& left + width != FRAME_WIDTH (XFRAME (w->frame)))
case 2: /* In mode line of window. */
return Qmode_line;
-
+
case 3: /* On right border of window. */
return Qvertical_line;
tem = Fnext_window (tem, Qt, Qlambda);
}
while (! EQ (tem, first));
-
+
return Qnil;
}
else break;
}
}
- /* Which windows are acceptible?
+ /* Which windows are acceptable?
Exit the loop and accept this window if
this isn't a minibuffer window,
or we're accepting all minibuffer windows,
due to limits in the Unix cpp.
DEFUN ("previous-window", Ffoo, Sfoo, 0, 3, 0,
- "Return the window preceeding WINDOW in canonical ordering of windows.\n\
+ "Return the window preceding WINDOW in canonical ordering of windows.\n\
If omitted, WINDOW defaults to the selected window.\n\
\n\
Optional second arg MINIBUF t means count the minibuffer window even\n\
window = tem;
}
}
- /* Which windows are acceptible?
+ /* Which windows are acceptable?
Exit the loop and accept this window if
this isn't a minibuffer window,
or we're accepting all minibuffer windows,
This command selects the window ARG steps away in that order.\n\
A negative ARG moves in the opposite order. If the optional second\n\
argument ALL_FRAMES is non-nil, cycle through all frames.")
- (n, all_frames)
- register Lisp_Object n, all_frames;
+ (arg, all_frames)
+ register Lisp_Object arg, all_frames;
{
register int i;
register Lisp_Object w;
- CHECK_NUMBER (n, 0);
+ CHECK_NUMBER (arg, 0);
w = selected_window;
- i = XINT (n);
+ i = XINT (arg);
while (i > 0)
{
}
return best_window;
-}
+}
DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0,
"Return the window least recently selected or used for display.\n\
}
return Qnil;
}
+
+/* Replace BUFFER with some other buffer in all windows
+ of all frames, even those on other keyboards. */
+
+void
+replace_buffer_in_all_windows (buffer)
+ Lisp_Object buffer;
+{
+#ifdef MULTI_KBOARD
+ Lisp_Object tail, frame;
+
+ /* A single call to window_loop won't do the job
+ because it only considers frames on the current keyboard.
+ So loop manually over frames, and handle each one. */
+ FOR_EACH_FRAME (tail, frame)
+ window_loop (UNSHOW_BUFFER, buffer, 0, frame);
+#else
+ window_loop (UNSHOW_BUFFER, buffer, 0, Qt);
+#endif
+}
\f
/* Set the height of WINDOW and all its inferiors. */
int *rows, *cols;
{
/* For height, we have to see:
- whether the frame has a minibuffer,
+ whether the frame has a minibuffer,
whether it wants a mode line, and
whether it has a menu bar. */
int min_height =
\f
int window_select_count;
+Lisp_Object
+Fset_window_buffer_unwind (obuf)
+ Lisp_Object obuf;
+{
+ Fset_buffer (obuf);
+ return Qnil;
+}
+
DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0,
"Make WINDOW display BUFFER as its contents.\n\
BUFFER can be a buffer or buffer name.")
{
register Lisp_Object tem;
register struct window *w = decode_window (window);
+ int count = specpdl_ptr - specpdl;
buffer = Fget_buffer (buffer);
CHECK_BUFFER (buffer, 1);
w->buffer = buffer;
XSETFASTINT (w->window_end_pos, 0);
w->window_end_valid = Qnil;
- XSETFASTINT(w->hscroll, 0);
+ XSETFASTINT (w->hscroll, 0);
Fset_marker (w->pointm,
make_number (BUF_PT (XBUFFER (buffer))),
buffer);
w->force_start = Qnil;
XSETFASTINT (w->last_modified, 0);
windows_or_buffers_changed++;
+
+ /* We must select BUFFER for running the window-scroll-functions.
+ If WINDOW is selected, switch permanently.
+ Otherwise, switch but go back to the ambient buffer afterward. */
if (EQ (window, selected_window))
Fset_buffer (buffer);
+ /* We can't check ! NILP (Vwindow_scroll_functions) here
+ because that might itself be a local variable. */
+ else if (window_initialized)
+ {
+ record_unwind_protect (Fset_window_buffer_unwind, Fcurrent_buffer ());
+ Fset_buffer (buffer);
+ }
+
+ if (! NILP (Vwindow_scroll_functions))
+ run_hook_with_args_2 (Qwindow_scroll_functions, window,
+ Fmarker_position (w->start));
+
+ unbind_to (count, Qnil);
return Qnil;
}
return window;
}
-/* Deiconify the frame containing the window WINDOW, then return WINDOW. */
+/* Deiconify the frame containing the window WINDOW,
+ unless it is the selected frame;
+ then return WINDOW.
+
+ The reason for the exception for the selected frame
+ is that it seems better not to change the selected frames visibility
+ merely because of displaying a different buffer in it.
+ The deiconification is useful when a buffer gets shown in
+ another frame that you were not using lately. */
static Lisp_Object
display_buffer_1 (window)
#ifdef MULTI_FRAME
FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
FRAME_SAMPLE_VISIBILITY (f);
- if (FRAME_ICONIFIED_P (f))
- Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
+ if (f != selected_frame)
+ {
+ if (FRAME_ICONIFIED_P (f))
+ Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
+ else if (FRAME_VISIBLE_P (f))
+ Fraise_frame (WINDOW_FRAME (XWINDOW (window)));
+ }
#endif
return window;
}
unless the window is the selected window and the optional second\n\
argument NOT-THIS-WINDOW is non-nil (interactively, with prefix arg).\n\
If `pop-up-frames' is non-nil, make a new frame if no window shows BUFFER.\n\
-Returns the window displaying BUFFER.")
+Returns the window displaying BUFFER.\n\
+\n\
+The variables `special-display-buffer-names', `special-display-regexps',\n\
+`same-window-buffer-names', and `same-window-regexps' customize how certain\n\
+buffer names are handled.")
(buffer, not_this_window)
register Lisp_Object buffer, not_this_window;
{
tem = Fassoc (XBUFFER (buffer)->name, Vspecial_display_buffer_names);
if (!NILP (tem))
return call2 (Vspecial_display_function, buffer, XCONS (tem)->cdr);
-
+
for (tem = Vspecial_display_regexps; CONSP (tem); tem = XCONS (tem)->cdr)
{
Lisp_Object car = XCONS (tem)->car;
{
Lisp_Object frames;
- frames = Qnil;
+ frames = Qnil;
#ifdef MULTI_FRAME
if (FRAME_MINIBUF_ONLY_P (selected_frame))
XSETFRAME (frames, last_nonminibuf_frame);
set_marker_restricted (w->start, make_number (1), buf);
set_marker_restricted (w->pointm, make_number (1), buf);
- /* Run temp-buffer-show-hook, with the chosen window selected. */
+ /* Run temp-buffer-show-hook, with the chosen window selected. */
if (!NILP (Vrun_hooks))
{
Lisp_Object tem;
if (size_int < window_min_height)
error ("Window height %d too small (after splitting)", size_int);
if (size_int + window_min_height > XFASTINT (o->height))
- error ("Window height %d too small (after splitting)",
+ error ("Window height %d too small (after splitting)",
XFASTINT (o->height) - size_int);
if (NILP (o->parent)
|| NILP (XWINDOW (o->parent)->vchild))
if (size_int < window_min_width)
error ("Window width %d too small (after splitting)", size_int);
if (internal_width - size_int - separator_width < window_min_width)
- error ("Window width %d too small (after splitting)",
+ error ("Window width %d too small (after splitting)",
internal_width - size_int - separator_width);
if (NILP (o->parent)
|| NILP (XWINDOW (o->parent)->hchild))
DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p",
"Make current window ARG lines bigger.\n\
From program, optional second arg non-nil means grow sideways ARG columns.")
- (n, side)
- register Lisp_Object n, side;
+ (arg, side)
+ register Lisp_Object arg, side;
{
- CHECK_NUMBER (n, 0);
- change_window_height (XINT (n), !NILP (side));
+ CHECK_NUMBER (arg, 0);
+ change_window_height (XINT (arg), !NILP (side));
return Qnil;
}
DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p",
"Make current window ARG lines smaller.\n\
-From program, optional second arg non-nil means shrink sideways ARG columns.")
- (n, side)
- register Lisp_Object n, side;
+From program, optional second arg non-nil means shrink sideways arg columns.")
+ (arg, side)
+ register Lisp_Object arg, side;
{
- CHECK_NUMBER (n, 0);
- change_window_height (-XINT (n), !NILP (side));
+ CHECK_NUMBER (arg, 0);
+ change_window_height (-XINT (arg), !NILP (side));
return Qnil;
}
Lisp_Object bolp, nmoved;
/* Always set force_start so that redisplay_window will run
- thw window-scroll-functions. */
+ the window-scroll-functions. */
w->force_start = Qt;
XSETFASTINT (tem, PT);
A near full screen is `next-screen-context-lines' less than a full screen.\n\
Negative ARG means scroll downward.\n\
When calling from a program, supply a number as argument or nil.")
- (n)
- Lisp_Object n;
+ (arg)
+ Lisp_Object arg;
{
- scroll_command (n, 1);
+ scroll_command (arg, 1);
return Qnil;
}
A near full screen is `next-screen-context-lines' less than a full screen.\n\
Negative ARG means scroll upward.\n\
When calling from a program, supply a number as argument or nil.")
- (n)
- Lisp_Object n;
+ (arg)
+ Lisp_Object arg;
{
- scroll_command (n, -1);
+ scroll_command (arg, -1);
return Qnil;
}
\f
specifies the window to scroll.\n\
If `other-window-scroll-buffer' is non-nil, scroll the window\n\
showing that buffer, popping the buffer up if necessary.")
- (n)
- register Lisp_Object n;
+ (arg)
+ register Lisp_Object arg;
{
register Lisp_Object window;
register int defalt;
Fset_buffer (w->buffer);
SET_PT (marker_position (w->pointm));
- if (NILP (n))
+ if (NILP (arg))
window_scroll (window, defalt, 1);
- else if (EQ (n, Qminus))
+ else if (EQ (arg, Qminus))
window_scroll (window, -defalt, 1);
else
{
- if (CONSP (n))
- n = Fcar (n);
- CHECK_NUMBER (n, 0);
- window_scroll (window, XINT (n), 1);
+ if (CONSP (arg))
+ arg = Fcar (arg);
+ CHECK_NUMBER (arg, 0);
+ window_scroll (window, XINT (arg), 1);
}
Fset_marker (w->pointm, make_number (PT), Qnil);
"Center point in window and redisplay frame. With ARG, put point on line ARG.\n\
The desired position of point is always relative to the current window.\n\
Just C-u as prefix means put point in the center of the window.\n\
-No arg (i.e., it is nil) erases the entire frame and then\n\
+If ARG is omitted or nil, erases the entire frame and then\n\
redraws with point in the center of the current window.")
- (n)
- register Lisp_Object n;
+ (arg)
+ register Lisp_Object arg;
{
register struct window *w = XWINDOW (selected_window);
register int ht = window_internal_height (w);
struct position pos;
- if (NILP (n))
+ if (NILP (arg))
{
extern int frame_garbaged;
SET_FRAME_GARBAGED (XFRAME (WINDOW_FRAME (w)));
- XSETFASTINT (n, ht / 2);
+ XSETFASTINT (arg, ht / 2);
}
- else if (CONSP (n)) /* Just C-u. */
+ else if (CONSP (arg)) /* Just C-u. */
{
- XSETFASTINT (n, ht / 2);
+ XSETFASTINT (arg, ht / 2);
}
else
{
- n = Fprefix_numeric_value (n);
- CHECK_NUMBER (n, 0);
+ arg = Fprefix_numeric_value (arg);
+ CHECK_NUMBER (arg, 0);
}
- if (XINT (n) < 0)
- XSETINT (n, XINT (n) + ht);
+ if (XINT (arg) < 0)
+ XSETINT (arg, XINT (arg) + ht);
- pos = *vmotion (point, - XINT (n), w);
+ pos = *vmotion (point, - XINT (arg), w);
Fset_marker (w->start, make_number (pos.bufpos), w->buffer);
w->start_at_line_beg = ((pos.bufpos == BEGV
((struct saved_window *) (XVECTOR ((swv)->contents[(n)])))
DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0,
- "T if OBJECT is a window-configration object.")
- (obj)
- Lisp_Object obj;
+ "T if OBJECT is a window-configuration object.")
+ (object)
+ Lisp_Object object;
{
- if (WINDOW_CONFIGURATIONP (obj))
+ if (WINDOW_CONFIGURATIONP (object))
return Qt;
return Qnil;
}
if (XFASTINT (data->frame_height) != previous_frame_height
|| XFASTINT (data->frame_width) != previous_frame_width)
change_frame_size (f, data->frame_height, data->frame_width, 0, 0);
-#ifdef HAVE_WINDOW_SYSTEM
+#if defined (HAVE_WINDOW_SYSTEM) || (defined (MSDOS) && defined (MULTI_FRAME))
if (XFASTINT (data->frame_menu_bar_lines)
!= previous_frame_menu_bar_lines)
x_set_menu_bar_lines (f, data->frame_menu_bar_lines, 0);
/* Kludge Alert!
Mark all windows now on frame as "deleted".
Restoring the new configuration "undeletes" any that are in it.
-
+
Save their current buffers in their height fields, since we may
need it later, if a buffer saved in the configuration is now
dead. */
#if 0 /* I don't understand why this is needed, and it causes problems
when the frame's old selected window has been deleted. */
#ifdef MULTI_FRAME
- if (f != selected_frame && ! FRAME_TERMCAP_P (f))
+ if (f != selected_frame && FRAME_WINDOW_P (f))
do_switch_frame (WINDOW_FRAME (XWINDOW (data->root_window)),
Qnil, 0);
#endif
|| previous_frame_width != FRAME_WIDTH (f))
change_frame_size (f, previous_frame_height, previous_frame_width,
0, 0);
-#ifdef HAVE_WINDOW_SYSTEM
+#if defined (HAVE_WINDOW_SYSTEM) || (defined (MSDOS) && defined (MULTI_FRAME))
if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f))
x_set_menu_bar_lines (f, previous_frame_menu_bar_lines, 0);
#endif
something newer than this. */
XSETFASTINT (XWINDOW (selected_window)->use_time, ++window_select_count);
#endif /* not MULTI_FRAME */
+
+ window_initialized = 1;
}
syms_of_window ()