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(make_window): Initialize window's min_hscroll.

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(Fset_window_hscroll): Set window's hscroll and min_hscroll.
(set_window_buffer, temp_output_buffer_show): Set min_hscroll
to zero.
(struct saved_window): New member min_hscroll.
(SAVED_WINDOW_VECTOR_SIZE): Set to 17.
(Fset_window_configuration): Set window's min_hscroll.
(save_window_save): Save window's min_hscroll.
(compare_window_configurations): Compare min_hscroll values.
This commit is contained in:
Gerd Moellmann 2000-12-20 15:36:29 +00:00
parent 0248728d0d
commit ea68264b3a
1 changed files with 30 additions and 20 deletions
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50
src/window.c
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@ -244,6 +244,7 @@ make_window ()
XSETFASTINT (p->height, 0);
XSETFASTINT (p->width, 0);
XSETFASTINT (p->hscroll, 0);
XSETFASTINT (p->min_hscroll, 0);
p->orig_top = p->orig_height = Qnil;
p->start = Fmake_marker ();
p->pointm = Fmake_marker ();
@ -417,17 +418,19 @@ DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0,
"Set number of columns WINDOW is scrolled from left margin to NCOL.\n\
NCOL should be zero or positive.")
(window, ncol)
register Lisp_Object window, ncol;
Lisp_Object window, ncol;
{
register struct window *w;
struct window *w = decode_window (window);
int hscroll;
CHECK_NUMBER (ncol, 1);
if (XINT (ncol) < 0) XSETFASTINT (ncol, 0);
w = decode_window (window);
if (XINT (w->hscroll) != XINT (ncol))
/* Prevent redisplay shortcuts */
hscroll = max (0, XINT (ncol));
/* Prevent redisplay shortcuts when changing the hscroll. */
if (XINT (w->hscroll) != hscroll)
XBUFFER (w->buffer)->prevent_redisplay_optimizations_p = 1;
w->hscroll = ncol;
w->hscroll = w->min_hscroll = make_number (hscroll);
return ncol;
}
@ -2608,6 +2611,7 @@ set_window_buffer (window, buffer, run_hooks_p)
bzero (&w->last_cursor, sizeof w->last_cursor);
w->window_end_valid = Qnil;
XSETFASTINT (w->hscroll, 0);
XSETFASTINT (w->min_hscroll, 0);
set_marker_both (w->pointm, buffer, BUF_PT (b), BUF_PT_BYTE (b));
set_marker_restricted (w->start,
make_number (b->last_window_start),
@ -3087,6 +3091,7 @@ temp_output_buffer_show (buf)
Vminibuf_scroll_window = window;
w = XWINDOW (window);
XSETFASTINT (w->hscroll, 0);
XSETFASTINT (w->min_hscroll, 0);
set_marker_restricted_both (w->start, buf, 1, 1);
set_marker_restricted_both (w->pointm, buf, 1, 1);
@ -4620,20 +4625,21 @@ struct save_window_data
/* This is saved as a Lisp_Vector */
struct saved_window
{
/* these first two must agree with struct Lisp_Vector in lisp.h */
EMACS_INT size_from_Lisp_Vector_struct;
struct Lisp_Vector *next_from_Lisp_Vector_struct;
{
/* these first two must agree with struct Lisp_Vector in lisp.h */
EMACS_INT size_from_Lisp_Vector_struct;
struct Lisp_Vector *next_from_Lisp_Vector_struct;
Lisp_Object window;
Lisp_Object buffer, start, pointm, mark;
Lisp_Object left, top, width, height, hscroll;
Lisp_Object parent, prev;
Lisp_Object start_at_line_beg;
Lisp_Object display_table;
Lisp_Object orig_top, orig_height;
};
#define SAVED_WINDOW_VECTOR_SIZE 16 /* Arg to Fmake_vector */
Lisp_Object window;
Lisp_Object buffer, start, pointm, mark;
Lisp_Object left, top, width, height, hscroll, min_hscroll;
Lisp_Object parent, prev;
Lisp_Object start_at_line_beg;
Lisp_Object display_table;
Lisp_Object orig_top, orig_height;
};
#define SAVED_WINDOW_VECTOR_SIZE 17 /* Arg to Fmake_vector */
#define SAVED_WINDOW_N(swv,n) \
((struct saved_window *) (XVECTOR ((swv)->contents[(n)])))
@ -4825,6 +4831,7 @@ the return value is nil. Otherwise the value is t.")
w->width = p->width;
w->height = p->height;
w->hscroll = p->hscroll;
w->min_hscroll = p->min_hscroll;
w->display_table = p->display_table;
w->orig_top = p->orig_top;
w->orig_height = p->orig_height;
@ -5092,6 +5099,7 @@ save_window_save (window, vector, i)
p->width = w->width;
p->height = w->height;
p->hscroll = w->hscroll;
p->min_hscroll = w->min_hscroll;
p->display_table = w->display_table;
p->orig_top = w->orig_top;
p->orig_height = w->orig_height;
@ -5520,6 +5528,8 @@ compare_window_configurations (c1, c2, ignore_positions)
{
if (! EQ (p1->hscroll, p2->hscroll))
return 0;
if (!EQ (p1->min_hscroll, p2->min_hscroll))
return 0;
if (! EQ (p1->start_at_line_beg, p2->start_at_line_beg))
return 0;
if (NILP (Fequal (p1->start, p2->start)))