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b0a37e7514
is deferred, but clear the pane flags when they are actually redrawn rather than every time.
645 lines
17 KiB
C
645 lines
17 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 <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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static void screen_redraw_draw_borders(struct screen_redraw_ctx *);
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static void screen_redraw_draw_panes(struct screen_redraw_ctx *);
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static void screen_redraw_draw_status(struct screen_redraw_ctx *);
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static void screen_redraw_draw_pane(struct screen_redraw_ctx *,
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struct window_pane *);
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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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/* 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 != PANE_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 == PANE_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 == PANE_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 == PANE_STATUS_TOP && border == 4)
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return (0);
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if (pane_status == PANE_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 != PANE_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 *expanded;
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u_int width, i;
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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(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS);
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format_defaults(ft, c, NULL, NULL, wp);
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expanded = format_expand_time(ft, fmt);
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if (wp->sx < 4)
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wp->status_size = width = 0;
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else
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wp->status_size = width = wp->sx - 4;
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memcpy(&old, &wp->status_screen, sizeof old);
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screen_init(&wp->status_screen, width, 1, 0);
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wp->status_screen.mode = 0;
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screen_write_start(&ctx, NULL, &wp->status_screen);
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gc.attr |= GRID_ATTR_CHARSET;
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for (i = 0; i < width; i++)
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screen_write_putc(&ctx, &gc, 'q');
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gc.attr &= ~GRID_ATTR_CHARSET;
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screen_write_cursormove(&ctx, 0, 0, 0);
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format_draw(&ctx, &gc, width, expanded, NULL);
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screen_write_stop(&ctx);
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free(expanded);
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format_free(ft);
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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 screen_redraw_ctx *ctx)
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{
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struct client *c = ctx->c;
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struct window *w = c->session->curw->window;
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struct tty *tty = &c->tty;
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struct window_pane *wp;
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struct screen *s;
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u_int i, x, width, xoff, yoff, size;
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log_debug("%s: %s @%u", __func__, c->name, w->id);
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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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s = &wp->status_screen;
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size = wp->status_size;
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if (ctx->pane_status == PANE_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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xoff = wp->xoff + 2;
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if (xoff + size <= ctx->ox ||
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xoff >= ctx->ox + ctx->sx ||
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yoff < ctx->oy ||
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yoff >= ctx->oy + ctx->sy)
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continue;
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if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) {
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/* All visible. */
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i = 0;
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x = xoff - ctx->ox;
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width = size;
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} else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) {
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/* Both left and right not visible. */
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i = ctx->ox;
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x = 0;
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width = ctx->sx;
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} else if (xoff < ctx->ox) {
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/* Left not visible. */
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i = ctx->ox - xoff;
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x = 0;
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width = size - i;
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} else {
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/* Right not visible. */
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i = 0;
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x = xoff - ctx->ox;
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width = size - x;
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}
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if (ctx->statustop)
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yoff += ctx->statuslines;
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tty_draw_line(tty, NULL, s, i, 0, width, x, yoff - ctx->oy);
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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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static int
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screen_redraw_update(struct client *c, int flags)
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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 && (~flags & CLIENT_REDRAWSTATUSALWAYS))
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flags &= ~CLIENT_REDRAWSTATUS;
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if (c->overlay_draw != NULL)
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flags |= CLIENT_REDRAWOVERLAY;
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if (options_get_number(wo, "pane-border-status") != PANE_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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flags |= CLIENT_REDRAWBORDERS;
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}
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return (flags);
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}
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/* Set up redraw context. */
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static void
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screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx)
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{
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struct session *s = c->session;
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struct options *oo = s->options;
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struct window *w = s->curw->window;
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struct options *wo = w->options;
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u_int lines;
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memset(ctx, 0, sizeof *ctx);
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ctx->c = c;
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lines = status_line_size(c);
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if (c->message_string != NULL || c->prompt_string != NULL)
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lines = (lines == 0) ? 1 : lines;
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if (lines != 0 && options_get_number(oo, "status-position") == 0)
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ctx->statustop = 1;
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ctx->statuslines = lines;
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ctx->pane_status = options_get_number(wo, "pane-border-status");
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tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy);
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log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name,
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w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->statuslines,
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ctx->statustop);
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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)
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{
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struct screen_redraw_ctx ctx;
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int flags;
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if (c->flags & CLIENT_SUSPENDED)
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return;
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flags = screen_redraw_update(c, c->flags);
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screen_redraw_set_context(c, &ctx);
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tty_sync_start(&c->tty);
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if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) {
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log_debug("%s: redrawing borders", c->name);
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if (ctx.pane_status != PANE_STATUS_OFF)
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screen_redraw_draw_pane_status(&ctx);
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screen_redraw_draw_borders(&ctx);
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}
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if (flags & CLIENT_REDRAWWINDOW) {
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log_debug("%s: redrawing panes", c->name);
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screen_redraw_draw_panes(&ctx);
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}
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if (ctx.statuslines != 0 &&
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(flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) {
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log_debug("%s: redrawing status", c->name);
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screen_redraw_draw_status(&ctx);
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}
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if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY)) {
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log_debug("%s: redrawing overlay", c->name);
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c->overlay_draw(c, &ctx);
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}
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tty_reset(&c->tty);
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tty_sync_end(&c->tty);
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}
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/* Redraw 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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struct screen_redraw_ctx ctx;
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if (c->overlay_draw != NULL || !window_pane_visible(wp))
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return;
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screen_redraw_set_context(c, &ctx);
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tty_sync_start(&c->tty);
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screen_redraw_draw_pane(&ctx, wp);
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wp->flags &= ~PANE_REDRAW;
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tty_reset(&c->tty);
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tty_sync_end(&c->tty);
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}
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/* Draw a border cell. */
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static void
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screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j,
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struct grid_cell *m_active_gc, struct grid_cell *active_gc,
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struct grid_cell *m_other_gc, struct grid_cell *other_gc)
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{
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struct client *c = ctx->c;
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struct session *s = c->session;
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struct window *w = s->curw->window;
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struct tty *tty = &c->tty;
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struct window_pane *wp;
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struct window_pane *active = w->active;
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struct window_pane *marked = marked_pane.wp;
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u_int type, x = ctx->ox + i, y = ctx->oy + j;
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int flag, pane_status = ctx->pane_status;
|
|
|
|
if (c->overlay_check != NULL && !c->overlay_check(c, x, y))
|
|
return;
|
|
type = screen_redraw_check_cell(c, x, y, pane_status, &wp);
|
|
if (type == CELL_INSIDE)
|
|
return;
|
|
flag = screen_redraw_check_is(x, y, type, pane_status, w, active, wp);
|
|
|
|
if (server_is_marked(s, s->curw, marked_pane.wp) &&
|
|
screen_redraw_check_is(x, y, type, pane_status, w, marked, wp)) {
|
|
if (flag)
|
|
tty_attributes(tty, m_active_gc, NULL);
|
|
else
|
|
tty_attributes(tty, m_other_gc, NULL);
|
|
} else if (flag)
|
|
tty_attributes(tty, active_gc, NULL);
|
|
else
|
|
tty_attributes(tty, other_gc, NULL);
|
|
if (ctx->statustop)
|
|
tty_cursor(tty, i, ctx->statuslines + j);
|
|
else
|
|
tty_cursor(tty, i, j);
|
|
tty_putc(tty, CELL_BORDERS[type]);
|
|
}
|
|
|
|
/* Draw the borders. */
|
|
static void
|
|
screen_redraw_draw_borders(struct screen_redraw_ctx *ctx)
|
|
{
|
|
struct client *c = ctx->c;
|
|
struct session *s = c->session;
|
|
struct window *w = s->curw->window;
|
|
struct tty *tty = &c->tty;
|
|
struct options *oo = w->options;
|
|
struct grid_cell m_active_gc, active_gc, m_other_gc, other_gc;
|
|
u_int i, j;
|
|
|
|
log_debug("%s: %s @%u", __func__, c->name, w->id);
|
|
|
|
style_apply(&other_gc, oo, "pane-border-style");
|
|
style_apply(&active_gc, oo, "pane-active-border-style");
|
|
active_gc.attr = other_gc.attr = GRID_ATTR_CHARSET;
|
|
|
|
memcpy(&m_other_gc, &other_gc, sizeof m_other_gc);
|
|
m_other_gc.attr ^= GRID_ATTR_REVERSE;
|
|
memcpy(&m_active_gc, &active_gc, sizeof m_active_gc);
|
|
m_active_gc.attr ^= GRID_ATTR_REVERSE;
|
|
|
|
for (j = 0; j < tty->sy - ctx->statuslines; j++) {
|
|
for (i = 0; i < tty->sx; i++) {
|
|
screen_redraw_draw_borders_cell(ctx, i, j,
|
|
&m_active_gc, &active_gc, &m_other_gc, &other_gc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Draw the panes. */
|
|
static void
|
|
screen_redraw_draw_panes(struct screen_redraw_ctx *ctx)
|
|
{
|
|
struct client *c = ctx->c;
|
|
struct window *w = c->session->curw->window;
|
|
struct window_pane *wp;
|
|
|
|
log_debug("%s: %s @%u", __func__, c->name, w->id);
|
|
|
|
TAILQ_FOREACH(wp, &w->panes, entry) {
|
|
if (window_pane_visible(wp))
|
|
screen_redraw_draw_pane(ctx, wp);
|
|
wp->flags &= ~PANE_REDRAW;
|
|
}
|
|
}
|
|
|
|
/* Draw the status line. */
|
|
static void
|
|
screen_redraw_draw_status(struct screen_redraw_ctx *ctx)
|
|
{
|
|
struct client *c = ctx->c;
|
|
struct window *w = c->session->curw->window;
|
|
struct tty *tty = &c->tty;
|
|
struct screen *s = c->status.active;
|
|
u_int i, y;
|
|
|
|
log_debug("%s: %s @%u", __func__, c->name, w->id);
|
|
|
|
if (ctx->statustop)
|
|
y = 0;
|
|
else
|
|
y = c->tty.sy - ctx->statuslines;
|
|
for (i = 0; i < ctx->statuslines; i++)
|
|
tty_draw_line(tty, NULL, s, 0, i, UINT_MAX, 0, y + i);
|
|
}
|
|
|
|
/* Draw one pane. */
|
|
static void
|
|
screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp)
|
|
{
|
|
struct client *c = ctx->c;
|
|
struct window *w = c->session->curw->window;
|
|
struct tty *tty = &c->tty;
|
|
struct screen *s;
|
|
u_int i, j, top, x, y, width;
|
|
|
|
log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id);
|
|
|
|
if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx)
|
|
return;
|
|
if (ctx->statustop)
|
|
top = ctx->statuslines;
|
|
else
|
|
top = 0;
|
|
|
|
s = wp->screen;
|
|
for (j = 0; j < wp->sy; j++) {
|
|
if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy)
|
|
continue;
|
|
y = top + wp->yoff + j - ctx->oy;
|
|
|
|
if (wp->xoff >= ctx->ox &&
|
|
wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
|
|
/* All visible. */
|
|
i = 0;
|
|
x = wp->xoff - ctx->ox;
|
|
width = wp->sx;
|
|
} else if (wp->xoff < ctx->ox &&
|
|
wp->xoff + wp->sx > ctx->ox + ctx->sx) {
|
|
/* Both left and right not visible. */
|
|
i = ctx->ox;
|
|
x = 0;
|
|
width = ctx->sx;
|
|
} else if (wp->xoff < ctx->ox) {
|
|
/* Left not visible. */
|
|
i = ctx->ox - wp->xoff;
|
|
x = 0;
|
|
width = wp->sx - i;
|
|
} else {
|
|
/* Right not visible. */
|
|
i = 0;
|
|
x = wp->xoff - ctx->ox;
|
|
width = ctx->sx - x;
|
|
}
|
|
log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u",
|
|
__func__, c->name, wp->id, i, j, x, y, width);
|
|
|
|
tty_draw_line(tty, wp, s, i, j, width, x, y);
|
|
}
|
|
}
|