/* Calculate what line insertion or deletion to do, and do it,
Copyright (C) 1985, 1986, 1990, 1993, 1994, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
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, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <string.h>
-#include "termchar.h"
#include "lisp.h"
+#include "termchar.h"
#include "dispextern.h"
#include "keyboard.h"
#include "frame.h"
#include "window.h"
+#include "termhooks.h"
/* All costs measured in characters.
So no cost can exceed the area of a frame, measured in characters.
unsigned char writecount;
};
-static void do_direct_scrolling P_ ((struct glyph_matrix *,
+static void do_direct_scrolling P_ ((struct frame *,
+ struct glyph_matrix *,
struct matrix_elt *,
int, int));
-static void do_scrolling P_ ((struct glyph_matrix *,
+static void do_scrolling P_ ((struct frame *,
+ struct glyph_matrix *,
struct matrix_elt *,
int, int));
register struct matrix_elt *p, *p1;
register int cost, cost1;
- int lines_moved = window_size + (scroll_region_ok ? 0 : lines_below);
+ int lines_moved = window_size
+ + (FRAME_SCROLL_REGION_OK (frame) ? 0 : lines_below);
/* first_insert_cost[I] is the cost of doing the first insert-line
at the i'th line of the lines we are considering,
where I is origin 1 (as it is below). */
of lines. */
static void
-do_scrolling (current_matrix, matrix, window_size, unchanged_at_top)
+do_scrolling (frame, current_matrix, matrix, window_size, unchanged_at_top)
+ struct frame *frame;
struct glyph_matrix *current_matrix;
struct matrix_elt *matrix;
int window_size;
/* Set the terminal window, if not done already. */
if (! terminal_window_p)
{
- set_terminal_window (window_size + unchanged_at_top);
+ set_terminal_window (frame, window_size + unchanged_at_top);
terminal_window_p = 1;
}
/* Delete lines on the terminal. */
- ins_del_lines (j + unchanged_at_top, - p->deletecount);
+ ins_del_lines (frame, j + unchanged_at_top, - p->deletecount);
}
else
{
/* Set the terminal window if not yet done. */
if (!terminal_window_p)
{
- set_terminal_window (window_size + unchanged_at_top);
+ set_terminal_window (frame, window_size + unchanged_at_top);
terminal_window_p = 1;
}
--queue;
/* Do the deletion on the terminal. */
- ins_del_lines (queue->pos, queue->count);
+ ins_del_lines (frame, queue->pos, queue->count);
/* All lines in the range deleted become empty in the glyph
matrix. Assign to them glyph rows that are not retained.
CHECK_MATRIX (current_matrix);
if (terminal_window_p)
- set_terminal_window (0);
+ set_terminal_window (frame, 0);
}
\f
/* Overhead of setting the scroll window, plus the extra cost
cost of scrolling by a distance of one. The extra cost is
added once for consistency with the cost vectors */
- scroll_overhead = scroll_region_cost + extra_cost;
+ scroll_overhead
+ = FRAME_SCROLL_REGION_COST (frame) + extra_cost;
/* initialize the top left corner of the matrix */
matrix->writecost = 0;
the cost matrix for this approach is constructed. */
static void
-do_direct_scrolling (current_matrix, cost_matrix, window_size,
- unchanged_at_top)
+do_direct_scrolling (frame, current_matrix, cost_matrix,
+ window_size, unchanged_at_top)
+ struct frame *frame;
struct glyph_matrix *current_matrix;
struct matrix_elt *cost_matrix;
int window_size;
if (i > j)
{
/* Immediately insert lines */
- set_terminal_window (i + unchanged_at_top);
+ set_terminal_window (frame, i + unchanged_at_top);
terminal_window_p = 1;
- ins_del_lines (j - n_to_write + unchanged_at_top, i - j);
+ ins_del_lines (frame, j - n_to_write + unchanged_at_top, i - j);
}
else if (i < j)
{
--queue;
if (queue->count)
{
- set_terminal_window (queue->window);
+ set_terminal_window (frame, queue->window);
terminal_window_p = 1;
- ins_del_lines (queue->pos, queue->count);
+ ins_del_lines (frame, queue->pos, queue->count);
}
else
{
copy_from, retained_p);
if (terminal_window_p)
- set_terminal_window (0);
+ set_terminal_window (frame, 0);
}
matrix = ((struct matrix_elt *)
alloca ((window_size + 1) * (window_size + 1) * sizeof *matrix));
- if (scroll_region_ok)
+ if (FRAME_SCROLL_REGION_OK (frame))
{
calculate_direct_scrolling (frame, matrix, window_size,
unchanged_at_bottom,
draw_cost, old_draw_cost,
old_hash, new_hash, free_at_end);
- do_direct_scrolling (frame->current_matrix,
+ do_direct_scrolling (frame, frame->current_matrix,
matrix, window_size, unchanged_at_top);
}
else
calculate_scrolling (frame, matrix, window_size, unchanged_at_bottom,
draw_cost, old_hash, new_hash,
free_at_end);
- do_scrolling (frame->current_matrix, matrix, window_size,
+ do_scrolling (frame,
+ frame->current_matrix, matrix, window_size,
unchanged_at_top);
}
}
if (amount == 0)
return 0;
- if (! scroll_region_ok)
+ if (! FRAME_SCROLL_REGION_OK (frame))
limit = height;
else if (amount > 0)
limit += amount;
HCoop / bpt / emacs.git / blobdiff