mirror of
https://github.com/tmux/tmux.git
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314e933914
from S Gilles.
627 lines
16 KiB
C
627 lines
16 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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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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static int screen_redraw_cell_border1(struct window_pane *, u_int, u_int);
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static int screen_redraw_cell_border(struct client *, u_int, u_int);
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static int screen_redraw_check_cell(struct client *, u_int, u_int, int,
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struct window_pane **);
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static int screen_redraw_check_is(u_int, u_int, int, int, struct window *,
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struct window_pane *, struct window_pane *);
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static int screen_redraw_make_pane_status(struct client *, struct window *,
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struct window_pane *);
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static void screen_redraw_draw_pane_status(struct client *, int);
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static void screen_redraw_draw_borders(struct client *, int, int, u_int);
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static void screen_redraw_draw_panes(struct client *, u_int);
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static void screen_redraw_draw_status(struct client *, u_int);
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static void screen_redraw_draw_number(struct client *, struct window_pane *,
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u_int);
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#define CELL_INSIDE 0
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#define CELL_LEFTRIGHT 1
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#define CELL_TOPBOTTOM 2
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#define CELL_TOPLEFT 3
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#define CELL_TOPRIGHT 4
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#define CELL_BOTTOMLEFT 5
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#define CELL_BOTTOMRIGHT 6
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#define CELL_TOPJOIN 7
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#define CELL_BOTTOMJOIN 8
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#define CELL_LEFTJOIN 9
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#define CELL_RIGHTJOIN 10
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#define CELL_JOIN 11
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#define CELL_OUTSIDE 12
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#define CELL_BORDERS " xqlkmjwvtun~"
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#define CELL_STATUS_OFF 0
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#define CELL_STATUS_TOP 1
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#define CELL_STATUS_BOTTOM 2
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/* Check if cell is on the border of a particular pane. */
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static int
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screen_redraw_cell_border1(struct window_pane *wp, u_int px, u_int py)
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{
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/* Inside pane. */
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if (px >= wp->xoff && px < wp->xoff + wp->sx &&
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py >= wp->yoff && py < wp->yoff + wp->sy)
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return (0);
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/* Left/right borders. */
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if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= wp->yoff + wp->sy) {
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if (wp->xoff != 0 && px == wp->xoff - 1)
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return (1);
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if (px == wp->xoff + wp->sx)
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return (2);
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}
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/* Top/bottom borders. */
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if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= wp->xoff + wp->sx) {
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if (wp->yoff != 0 && py == wp->yoff - 1)
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return (3);
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if (py == wp->yoff + wp->sy)
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return (4);
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}
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/* Outside pane. */
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return (-1);
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}
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/* Check if a cell is on the pane border. */
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static int
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screen_redraw_cell_border(struct client *c, u_int px, u_int py)
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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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int retval;
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/* Check all the panes. */
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (!window_pane_visible(wp))
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continue;
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if ((retval = screen_redraw_cell_border1(wp, px, py)) != -1)
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return (!!retval);
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}
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return (0);
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}
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/* Check if cell inside a pane. */
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static int
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screen_redraw_check_cell(struct client *c, u_int px, u_int py, int pane_status,
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struct window_pane **wpp)
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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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int borders;
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u_int right, line;
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*wpp = NULL;
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if (px > w->sx || py > w->sy)
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return (CELL_OUTSIDE);
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if (pane_status != CELL_STATUS_OFF) {
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (!window_pane_visible(wp))
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continue;
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if (pane_status == CELL_STATUS_TOP)
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line = wp->yoff - 1;
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else
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line = wp->yoff + wp->sy;
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right = wp->xoff + 2 + wp->status_size - 1;
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if (py == line && px >= wp->xoff + 2 && px <= right)
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return (CELL_INSIDE);
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}
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}
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (!window_pane_visible(wp))
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continue;
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*wpp = wp;
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/* If outside the pane and its border, skip it. */
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if ((wp->xoff != 0 && px < wp->xoff - 1) ||
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px > wp->xoff + wp->sx ||
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(wp->yoff != 0 && py < wp->yoff - 1) ||
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py > wp->yoff + wp->sy)
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continue;
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/* If definitely inside, return so. */
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if (!screen_redraw_cell_border(c, px, py))
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return (CELL_INSIDE);
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/*
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* Construct a bitmask of whether the cells to the left (bit
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* 4), right, top, and bottom (bit 1) of this cell are borders.
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*/
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borders = 0;
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if (px == 0 || screen_redraw_cell_border(c, px - 1, py))
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borders |= 8;
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if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py))
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borders |= 4;
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if (pane_status == CELL_STATUS_TOP) {
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if (py != 0 && screen_redraw_cell_border(c, px, py - 1))
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borders |= 2;
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} else {
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if (py == 0 || screen_redraw_cell_border(c, px, py - 1))
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borders |= 2;
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}
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if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1))
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borders |= 1;
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/*
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* Figure out what kind of border this cell is. Only one bit
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* set doesn't make sense (can't have a border cell with no
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* others connected).
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*/
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switch (borders) {
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case 15: /* 1111, left right top bottom */
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return (CELL_JOIN);
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case 14: /* 1110, left right top */
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return (CELL_BOTTOMJOIN);
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case 13: /* 1101, left right bottom */
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return (CELL_TOPJOIN);
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case 12: /* 1100, left right */
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return (CELL_TOPBOTTOM);
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case 11: /* 1011, left top bottom */
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return (CELL_RIGHTJOIN);
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case 10: /* 1010, left top */
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return (CELL_BOTTOMRIGHT);
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case 9: /* 1001, left bottom */
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return (CELL_TOPRIGHT);
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case 7: /* 0111, right top bottom */
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return (CELL_LEFTJOIN);
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case 6: /* 0110, right top */
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return (CELL_BOTTOMLEFT);
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case 5: /* 0101, right bottom */
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return (CELL_TOPLEFT);
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case 3: /* 0011, top bottom */
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return (CELL_LEFTRIGHT);
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}
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}
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return (CELL_OUTSIDE);
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}
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/* Check if the border of a particular pane. */
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static int
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screen_redraw_check_is(u_int px, u_int py, int type, int pane_status,
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struct window *w, struct window_pane *wantwp, struct window_pane *wp)
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{
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int border;
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/* Is this off the active pane border? */
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border = screen_redraw_cell_border1(wantwp, px, py);
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if (border == 0 || border == -1)
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return (0);
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if (pane_status == CELL_STATUS_TOP && border == 4)
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return (0);
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if (pane_status == CELL_STATUS_BOTTOM && border == 3)
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return (0);
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/* If there are more than two panes, that's enough. */
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if (window_count_panes(w) != 2)
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return (1);
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/* Else if the cell is not a border cell, forget it. */
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if (wp == NULL || (type == CELL_OUTSIDE || type == CELL_INSIDE))
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return (1);
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/* With status lines mark the entire line. */
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if (pane_status != CELL_STATUS_OFF)
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return (1);
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/* Check if the pane covers the whole width. */
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if (wp->xoff == 0 && wp->sx == w->sx) {
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/* This can either be the top pane or the bottom pane. */
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if (wp->yoff == 0) { /* top pane */
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if (wp == wantwp)
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return (px <= wp->sx / 2);
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return (px > wp->sx / 2);
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}
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return (0);
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}
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/* Check if the pane covers the whole height. */
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if (wp->yoff == 0 && wp->sy == w->sy) {
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/* This can either be the left pane or the right pane. */
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if (wp->xoff == 0) { /* left pane */
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if (wp == wantwp)
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return (py <= wp->sy / 2);
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return (py > wp->sy / 2);
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}
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return (0);
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}
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return (1);
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}
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/* Update pane status. */
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static int
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screen_redraw_make_pane_status(struct client *c, struct window *w,
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struct window_pane *wp)
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{
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struct grid_cell gc;
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const char *fmt;
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struct format_tree *ft;
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char *out;
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size_t outlen;
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struct screen_write_ctx ctx;
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struct screen old;
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if (wp == w->active)
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style_apply(&gc, w->options, "pane-active-border-style");
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else
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style_apply(&gc, w->options, "pane-border-style");
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fmt = options_get_string(w->options, "pane-border-format");
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ft = format_create(NULL, 0);
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format_defaults(ft, c, NULL, NULL, wp);
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memcpy(&old, &wp->status_screen, sizeof old);
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screen_init(&wp->status_screen, wp->sx, 1, 0);
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wp->status_screen.mode = 0;
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out = format_expand(ft, fmt);
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outlen = screen_write_cstrlen("%s", out);
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if (outlen > wp->sx - 4)
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outlen = wp->sx - 4;
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screen_resize(&wp->status_screen, outlen, 1, 0);
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screen_write_start(&ctx, NULL, &wp->status_screen);
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screen_write_cursormove(&ctx, 0, 0);
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screen_write_clearline(&ctx, 8);
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screen_write_cnputs(&ctx, outlen, &gc, "%s", out);
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screen_write_stop(&ctx);
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format_free(ft);
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wp->status_size = outlen;
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if (grid_compare(wp->status_screen.grid, old.grid) == 0) {
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screen_free(&old);
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return (0);
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}
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screen_free(&old);
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return (1);
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}
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/* Draw pane status. */
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static void
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screen_redraw_draw_pane_status(struct client *c, int pane_status)
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{
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struct window *w = c->session->curw->window;
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struct options *oo = c->session->options;
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struct tty *tty = &c->tty;
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struct window_pane *wp;
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int spos;
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u_int yoff;
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spos = options_get_number(oo, "status-position");
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (!window_pane_visible(wp))
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continue;
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if (pane_status == CELL_STATUS_TOP)
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yoff = wp->yoff - 1;
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else
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yoff = wp->yoff + wp->sy;
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if (spos == 0)
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yoff += 1;
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tty_draw_line(tty, NULL, &wp->status_screen, 0, wp->xoff + 2,
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yoff);
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}
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tty_cursor(tty, 0, 0);
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}
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/* Update status line and change flags if unchanged. */
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void
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screen_redraw_update(struct client *c)
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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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struct options *wo = w->options;
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int redraw;
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if (c->message_string != NULL)
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redraw = status_message_redraw(c);
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else if (c->prompt_string != NULL)
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redraw = status_prompt_redraw(c);
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else
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redraw = status_redraw(c);
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if (!redraw)
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c->flags &= ~CLIENT_STATUS;
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if (options_get_number(wo, "pane-border-status") != CELL_STATUS_OFF) {
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redraw = 0;
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (screen_redraw_make_pane_status(c, w, wp))
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redraw = 1;
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}
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if (redraw)
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c->flags |= CLIENT_BORDERS;
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}
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}
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/* Redraw entire screen. */
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void
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screen_redraw_screen(struct client *c, int draw_panes, int draw_status,
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int draw_borders)
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{
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struct options *oo = c->session->options;
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struct tty *tty = &c->tty;
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struct window *w = c->session->curw->window;
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struct options *wo = w->options;
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u_int top;
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int status, pane_status, spos;
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/* Suspended clients should not be updated. */
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if (c->flags & CLIENT_SUSPENDED)
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return;
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/* Get status line, er, status. */
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spos = options_get_number(oo, "status-position");
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if (c->message_string != NULL || c->prompt_string != NULL)
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status = 1;
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else
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status = options_get_number(oo, "status");
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top = 0;
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if (status && spos == 0)
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top = 1;
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if (!status)
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draw_status = 0;
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/* Draw the elements. */
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if (draw_borders) {
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pane_status = options_get_number(wo, "pane-border-status");
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screen_redraw_draw_borders(c, status, pane_status, top);
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if (pane_status != CELL_STATUS_OFF)
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screen_redraw_draw_pane_status(c, pane_status);
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}
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if (draw_panes)
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screen_redraw_draw_panes(c, top);
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if (draw_status)
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screen_redraw_draw_status(c, top);
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tty_reset(tty);
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}
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/* Draw a single pane. */
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void
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screen_redraw_pane(struct client *c, struct window_pane *wp)
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{
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u_int i, yoff;
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if (!window_pane_visible(wp))
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return;
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yoff = wp->yoff;
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if (status_at_line(c) == 0)
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yoff++;
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for (i = 0; i < wp->sy; i++)
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tty_draw_pane(&c->tty, wp, i, wp->xoff, yoff);
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tty_reset(&c->tty);
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}
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/* Draw the borders. */
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static void
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screen_redraw_draw_borders(struct client *c, int status, int pane_status,
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u_int top)
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{
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struct session *s = c->session;
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struct window *w = s->curw->window;
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struct options *oo = w->options;
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struct tty *tty = &c->tty;
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struct window_pane *wp;
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struct grid_cell m_active_gc, active_gc, m_other_gc, other_gc;
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struct grid_cell msg_gc;
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u_int i, j, type, msgx = 0, msgy = 0;
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int active, small, flags;
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char msg[256];
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const char *tmp;
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size_t msglen = 0;
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small = (tty->sy - status + top > w->sy) || (tty->sx > w->sx);
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if (small) {
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flags = w->flags & (WINDOW_FORCEWIDTH|WINDOW_FORCEHEIGHT);
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if (flags == (WINDOW_FORCEWIDTH|WINDOW_FORCEHEIGHT))
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tmp = "force-width, force-height";
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else if (flags == WINDOW_FORCEWIDTH)
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tmp = "force-width";
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else if (flags == WINDOW_FORCEHEIGHT)
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tmp = "force-height";
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else
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tmp = "a smaller client";
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xsnprintf(msg, sizeof msg, "(size %ux%u from %s)",
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w->sx, w->sy, tmp);
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msglen = strlen(msg);
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if (tty->sy - 1 - status + top > w->sy && tty->sx >= msglen) {
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msgx = tty->sx - msglen;
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msgy = tty->sy - 1 - status + top;
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} else if (tty->sx - w->sx > msglen) {
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msgx = tty->sx - msglen;
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msgy = tty->sy - 1 - status + top;
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} else
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small = 0;
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}
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style_apply(&other_gc, oo, "pane-border-style");
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style_apply(&active_gc, oo, "pane-active-border-style");
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active_gc.attr = other_gc.attr = GRID_ATTR_CHARSET;
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memcpy(&m_other_gc, &other_gc, sizeof m_other_gc);
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m_other_gc.attr ^= GRID_ATTR_REVERSE;
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memcpy(&m_active_gc, &active_gc, sizeof m_active_gc);
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m_active_gc.attr ^= GRID_ATTR_REVERSE;
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for (j = 0; j < tty->sy - status; j++) {
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for (i = 0; i < tty->sx; i++) {
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type = screen_redraw_check_cell(c, i, j, pane_status,
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&wp);
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if (type == CELL_INSIDE)
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continue;
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if (type == CELL_OUTSIDE && small &&
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i > msgx && j == msgy)
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continue;
|
|
active = screen_redraw_check_is(i, j, type, pane_status,
|
|
w, w->active, wp);
|
|
if (server_is_marked(s, s->curw, marked_pane.wp) &&
|
|
screen_redraw_check_is(i, j, type, pane_status, w,
|
|
marked_pane.wp, wp)) {
|
|
if (active)
|
|
tty_attributes(tty, &m_active_gc, NULL);
|
|
else
|
|
tty_attributes(tty, &m_other_gc, NULL);
|
|
} else if (active)
|
|
tty_attributes(tty, &active_gc, NULL);
|
|
else
|
|
tty_attributes(tty, &other_gc, NULL);
|
|
tty_cursor(tty, i, top + j);
|
|
tty_putc(tty, CELL_BORDERS[type]);
|
|
}
|
|
}
|
|
|
|
if (small) {
|
|
memcpy(&msg_gc, &grid_default_cell, sizeof msg_gc);
|
|
tty_attributes(tty, &msg_gc, NULL);
|
|
tty_cursor(tty, msgx, msgy);
|
|
tty_puts(tty, msg);
|
|
}
|
|
}
|
|
|
|
/* Draw the panes. */
|
|
static void
|
|
screen_redraw_draw_panes(struct client *c, u_int top)
|
|
{
|
|
struct window *w = c->session->curw->window;
|
|
struct tty *tty = &c->tty;
|
|
struct window_pane *wp;
|
|
u_int i;
|
|
|
|
TAILQ_FOREACH(wp, &w->panes, entry) {
|
|
if (!window_pane_visible(wp))
|
|
continue;
|
|
for (i = 0; i < wp->sy; i++)
|
|
tty_draw_pane(tty, wp, i, wp->xoff, top + wp->yoff);
|
|
if (c->flags & CLIENT_IDENTIFY)
|
|
screen_redraw_draw_number(c, wp, top);
|
|
}
|
|
}
|
|
|
|
/* Draw the status line. */
|
|
static void
|
|
screen_redraw_draw_status(struct client *c, u_int top)
|
|
{
|
|
struct tty *tty = &c->tty;
|
|
|
|
if (top)
|
|
tty_draw_line(tty, NULL, &c->status, 0, 0, 0);
|
|
else
|
|
tty_draw_line(tty, NULL, &c->status, 0, 0, tty->sy - 1);
|
|
}
|
|
|
|
/* Draw number on a pane. */
|
|
static void
|
|
screen_redraw_draw_number(struct client *c, struct window_pane *wp, u_int top)
|
|
{
|
|
struct tty *tty = &c->tty;
|
|
struct session *s = c->session;
|
|
struct options *oo = s->options;
|
|
struct window *w = wp->window;
|
|
struct grid_cell gc;
|
|
u_int idx, px, py, i, j, xoff, yoff;
|
|
int colour, active_colour;
|
|
char buf[16], *ptr;
|
|
size_t len;
|
|
|
|
if (window_pane_index(wp, &idx) != 0)
|
|
fatalx("index not found");
|
|
len = xsnprintf(buf, sizeof buf, "%u", idx);
|
|
|
|
if (wp->sx < len)
|
|
return;
|
|
colour = options_get_number(oo, "display-panes-colour");
|
|
active_colour = options_get_number(oo, "display-panes-active-colour");
|
|
|
|
px = wp->sx / 2; py = wp->sy / 2;
|
|
xoff = wp->xoff; yoff = wp->yoff;
|
|
|
|
if (top)
|
|
yoff++;
|
|
|
|
if (wp->sx < len * 6 || wp->sy < 5) {
|
|
tty_cursor(tty, xoff + px - len / 2, yoff + py);
|
|
goto draw_text;
|
|
}
|
|
|
|
px -= len * 3;
|
|
py -= 2;
|
|
|
|
memcpy(&gc, &grid_default_cell, sizeof gc);
|
|
if (w->active == wp)
|
|
gc.bg = active_colour;
|
|
else
|
|
gc.bg = colour;
|
|
gc.flags |= GRID_FLAG_NOPALETTE;
|
|
|
|
tty_attributes(tty, &gc, wp);
|
|
for (ptr = buf; *ptr != '\0'; ptr++) {
|
|
if (*ptr < '0' || *ptr > '9')
|
|
continue;
|
|
idx = *ptr - '0';
|
|
|
|
for (j = 0; j < 5; j++) {
|
|
for (i = px; i < px + 5; i++) {
|
|
tty_cursor(tty, xoff + i, yoff + py + j);
|
|
if (window_clock_table[idx][j][i - px])
|
|
tty_putc(tty, ' ');
|
|
}
|
|
}
|
|
px += 6;
|
|
}
|
|
|
|
len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
|
|
if (wp->sx < len || wp->sy < 6)
|
|
return;
|
|
tty_cursor(tty, xoff + wp->sx - len, yoff);
|
|
|
|
draw_text:
|
|
memcpy(&gc, &grid_default_cell, sizeof gc);
|
|
if (w->active == wp)
|
|
gc.fg = active_colour;
|
|
else
|
|
gc.fg = colour;
|
|
gc.flags |= GRID_FLAG_NOPALETTE;
|
|
|
|
tty_attributes(tty, &gc, wp);
|
|
tty_puts(tty, buf);
|
|
|
|
tty_cursor(tty, 0, 0);
|
|
}
|