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/* $Id: screen-redraw.c,v 1.20 2009-01-19 20:14:55 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
void screen_redraw_blankx(struct client *, u_int, u_int);
void screen_redraw_blanky(struct client *, u_int, u_int, char);
void screen_redraw_line(struct client *, struct screen *, u_int, u_int);
/* Redraw entire screen.. */
void
screen_redraw_screen(struct client *c, struct screen *s)
{
struct window *w = c->session->curw->window;
struct window_pane *wp;
u_int i, cx, cy, sy;
int status;
/* Override the normal screen if one is given. */
if (s != NULL) {
for (i = 0; i < screen_size_y(s); i++)
screen_redraw_line(c, s, 0, i);
return;
}
status = options_get_number(&c->session->options, "status");
/* Fill in empty space on the right. */
if (w->sx < c->sx)
screen_redraw_blankx(c, w->sx, c->sx - w->sx);
/* Draw the panes. */
TAILQ_FOREACH(wp, &w->panes, entry) {
s = wp->screen;
sy = screen_size_y(s);
cx = s->cx;
cy = s->cy;
if (wp->yoff + sy <= w->sy) {
for (i = 0; i < sy; i++) {
if (wp->yoff + i != c->sy - 1)
screen_redraw_line(c, s, wp->yoff, i);
}
if (TAILQ_NEXT(wp, entry) != NULL)
screen_redraw_blanky(c, wp->yoff + sy, 1, '-');
}
s->cx = cx;
s->cy = cy;
}
/* Fill in empty space below. */
if (w->sy < c->sy - status)
screen_redraw_blanky(c, w->sy, c->sy - status - w->sy, '=');
/* Draw the status line. */
screen_redraw_status(c);
}
/* Draw the status line. */
void
screen_redraw_status(struct client *c)
{
screen_redraw_line(c, &c->status, c->sy - 1, 0);
}
/* Draw blank columns. */
void
screen_redraw_blankx(struct client *c, u_int ox, u_int nx)
{
u_int i, j;
tty_putcode(&c->tty, TTYC_SGR0);
for (j = 0; j < c->sy; j++) {
tty_putcode2(&c->tty, TTYC_CUP, j, ox);
for (i = 0; i < nx; i++)
tty_putc(&c->tty, ' ');
}
c->tty.cx = UINT_MAX;
c->tty.cy = UINT_MAX;
memcpy(&c->tty.cell, &grid_default_cell, sizeof c->tty.cell);
}
/* Draw blank lines. */
void
screen_redraw_blanky(struct client *c, u_int oy, u_int ny, char ch)
{
u_int i, j;
tty_putcode(&c->tty, TTYC_SGR0);
for (j = 0; j < ny; j++) {
tty_putcode2(&c->tty, TTYC_CUP, oy + j, 0);
for (i = 0; i < c->sx; i++) {
if (j == 0)
tty_putc(&c->tty, ch);
else
tty_putc(&c->tty, ' ');
}
}
c->tty.cx = UINT_MAX;
c->tty.cy = UINT_MAX;
memcpy(&c->tty.cell, &grid_default_cell, sizeof c->tty.cell);
}
/* Draw a line. */
void
screen_redraw_line(struct client *c, struct screen *s, u_int oy, u_int py)
{
const struct grid_cell *gc;
struct grid_cell tc;
u_int i, sx;
sx = screen_size_x(s);
if (sx > c->sx)
sx = c->sx;
for (i = 0; i < sx; i++) {
s->cx = i;
s->cy = py;
gc = grid_view_peek_cell(s->grid, i, py);
if (screen_check_selection(s, i, py)) {
memcpy(&tc, &s->sel.cell, sizeof tc);
tc.data = gc->data;
tty_write(&c->tty, s, oy, TTY_CELL, &tc);
} else
tty_write(&c->tty, s, oy, TTY_CELL, gc);
}
}
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