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which may involve changing the cursor position; however, the old (before redraw) cursor position is necessary for writing to the tty. So, save it before doing the redraw then update the internal screen then update the tty. Not sure I like this solution but it does the job for now.
148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* $Id: screen-redraw.c,v 1.22 2009-02-11 17:04:38 nicm Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include "tmux.h"
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void screen_redraw_blankx(struct client *, u_int, u_int);
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void screen_redraw_blanky(struct client *, u_int, u_int, char);
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void screen_redraw_line(struct client *, struct screen *, u_int, u_int);
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/* Redraw entire screen.. */
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void
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screen_redraw_screen(struct client *c, struct screen *s)
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{
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struct window *w = c->session->curw->window;
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struct window_pane *wp;
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u_int i, cx, cy, sy;
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int status;
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/* Override the normal screen if one is given. */
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if (s != NULL) {
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for (i = 0; i < screen_size_y(s); i++)
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screen_redraw_line(c, s, 0, i);
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return;
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}
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status = options_get_number(&c->session->options, "status");
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/* Fill in empty space on the right. */
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if (w->sx < c->sx)
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screen_redraw_blankx(c, w->sx, c->sx - w->sx);
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/* Draw the panes. */
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TAILQ_FOREACH(wp, &w->panes, entry) {
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s = wp->screen;
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sy = screen_size_y(s);
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cx = s->cx;
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cy = s->cy;
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if (wp->yoff + sy <= w->sy) {
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for (i = 0; i < sy; i++) {
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if (wp->yoff + i != c->sy - 1)
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screen_redraw_line(c, s, wp->yoff, i);
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}
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if (TAILQ_NEXT(wp, entry) != NULL)
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screen_redraw_blanky(c, wp->yoff + sy, 1, '-');
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}
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s->cx = cx;
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s->cy = cy;
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}
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/* Fill in empty space below. */
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if (w->sy < c->sy - status)
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screen_redraw_blanky(c, w->sy, c->sy - status - w->sy, '=');
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/* Draw the status line. */
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screen_redraw_status(c);
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}
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/* Draw the status line. */
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void
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screen_redraw_status(struct client *c)
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{
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screen_redraw_line(c, &c->status, c->sy - 1, 0);
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}
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/* Draw blank columns. */
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void
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screen_redraw_blankx(struct client *c, u_int ox, u_int nx)
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{
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u_int i, j;
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tty_putcode(&c->tty, TTYC_SGR0);
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for (j = 0; j < c->sy; j++) {
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tty_putcode2(&c->tty, TTYC_CUP, j, ox);
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for (i = 0; i < nx; i++)
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tty_putc(&c->tty, ' ');
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}
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c->tty.cx = UINT_MAX;
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c->tty.cy = UINT_MAX;
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memcpy(&c->tty.cell, &grid_default_cell, sizeof c->tty.cell);
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}
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/* Draw blank lines. */
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void
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screen_redraw_blanky(struct client *c, u_int oy, u_int ny, char ch)
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{
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u_int i, j;
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tty_putcode(&c->tty, TTYC_SGR0);
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for (j = 0; j < ny; j++) {
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tty_putcode2(&c->tty, TTYC_CUP, oy + j, 0);
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for (i = 0; i < c->sx; i++) {
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if (j == 0)
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tty_putc(&c->tty, ch);
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else
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tty_putc(&c->tty, ' ');
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}
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}
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c->tty.cx = UINT_MAX;
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c->tty.cy = UINT_MAX;
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memcpy(&c->tty.cell, &grid_default_cell, sizeof c->tty.cell);
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}
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/* Draw a line. */
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void
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screen_redraw_line(struct client *c, struct screen *s, u_int oy, u_int py)
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{
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const struct grid_cell *gc;
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struct grid_cell tc;
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u_int i, sx;
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sx = screen_size_x(s);
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if (sx > c->sx)
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sx = c->sx;
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for (i = 0; i < sx; i++) {
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gc = grid_view_peek_cell(s->grid, i, py);
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tty_cursor(&c->tty, i, py, oy);
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if (screen_check_selection(s, i, py)) {
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memcpy(&tc, &s->sel.cell, sizeof tc);
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tc.data = gc->data;
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tty_cell(&c->tty, &tc);
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} else
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tty_cell(&c->tty, gc);
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}
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}
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