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Diffstat (limited to '')
| -rw-r--r-- | screen-redraw.c | 859 |
1 files changed, 859 insertions, 0 deletions
diff --git a/screen-redraw.c b/screen-redraw.c new file mode 100644 index 0000000..c4906ab --- /dev/null +++ b/screen-redraw.c @@ -0,0 +1,859 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> + * + * 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 <stdlib.h> +#include <string.h> + +#include "tmux.h" + +static void screen_redraw_draw_borders(struct screen_redraw_ctx *); +static void screen_redraw_draw_panes(struct screen_redraw_ctx *); +static void screen_redraw_draw_status(struct screen_redraw_ctx *); +static void screen_redraw_draw_pane(struct screen_redraw_ctx *, + struct window_pane *); +static void screen_redraw_set_context(struct client *, + struct screen_redraw_ctx *); + +#define START_ISOLATE "\342\201\246" +#define END_ISOLATE "\342\201\251" + +/* Border in relation to a pane. */ +enum screen_redraw_border_type { + SCREEN_REDRAW_OUTSIDE, + SCREEN_REDRAW_INSIDE, + SCREEN_REDRAW_BORDER_LEFT, + SCREEN_REDRAW_BORDER_RIGHT, + SCREEN_REDRAW_BORDER_TOP, + SCREEN_REDRAW_BORDER_BOTTOM +}; +#define BORDER_MARKERS " +,.-" + +/* Get cell border character. */ +static void +screen_redraw_border_set(struct window *w, struct window_pane *wp, + enum pane_lines pane_lines, int cell_type, struct grid_cell *gc) +{ + u_int idx; + + if (cell_type == CELL_OUTSIDE && w->fill_character != NULL) { + utf8_copy(&gc->data, &w->fill_character[0]); + return; + } + + switch (pane_lines) { + case PANE_LINES_NUMBER: + if (cell_type == CELL_OUTSIDE) { + gc->attr |= GRID_ATTR_CHARSET; + utf8_set(&gc->data, CELL_BORDERS[CELL_OUTSIDE]); + break; + } + gc->attr &= ~GRID_ATTR_CHARSET; + if (wp != NULL && window_pane_index(wp, &idx) == 0) + utf8_set(&gc->data, '0' + (idx % 10)); + else + utf8_set(&gc->data, '*'); + break; + case PANE_LINES_DOUBLE: + gc->attr &= ~GRID_ATTR_CHARSET; + utf8_copy(&gc->data, tty_acs_double_borders(cell_type)); + break; + case PANE_LINES_HEAVY: + gc->attr &= ~GRID_ATTR_CHARSET; + utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type)); + break; + case PANE_LINES_SIMPLE: + gc->attr &= ~GRID_ATTR_CHARSET; + utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]); + break; + default: + gc->attr |= GRID_ATTR_CHARSET; + utf8_set(&gc->data, CELL_BORDERS[cell_type]); + break; + } +} + +/* Return if window has only two panes. */ +static int +screen_redraw_two_panes(struct window *w, int direction) +{ + struct window_pane *wp; + + wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry); + if (wp == NULL) + return (0); /* one pane */ + if (TAILQ_NEXT(wp, entry) != NULL) + return (0); /* more than two panes */ + if (direction == 0 && wp->xoff == 0) + return (0); + if (direction == 1 && wp->yoff == 0) + return (0); + return (1); +} + +/* Check if cell is on the border of a pane. */ +static enum screen_redraw_border_type +screen_redraw_pane_border(struct window_pane *wp, u_int px, u_int py, + int pane_status) +{ + struct options *oo = wp->window->options; + int split = 0; + u_int ex = wp->xoff + wp->sx, ey = wp->yoff + wp->sy; + + /* Inside pane. */ + if (px >= wp->xoff && px < ex && py >= wp->yoff && py < ey) + return (SCREEN_REDRAW_INSIDE); + + /* Get pane indicator. */ + switch (options_get_number(oo, "pane-border-indicators")) { + case PANE_BORDER_COLOUR: + case PANE_BORDER_BOTH: + split = 1; + break; + } + + /* Left/right borders. */ + if (pane_status == PANE_STATUS_OFF) { + if (screen_redraw_two_panes(wp->window, 0) && split) { + if (wp->xoff == 0 && px == wp->sx && py <= wp->sy / 2) + return (SCREEN_REDRAW_BORDER_RIGHT); + if (wp->xoff != 0 && + px == wp->xoff - 1 && + py > wp->sy / 2) + return (SCREEN_REDRAW_BORDER_LEFT); + } else { + if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { + if (wp->xoff != 0 && px == wp->xoff - 1) + return (SCREEN_REDRAW_BORDER_LEFT); + if (px == ex) + return (SCREEN_REDRAW_BORDER_RIGHT); + } + } + } else { + if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= ey) { + if (wp->xoff != 0 && px == wp->xoff - 1) + return (SCREEN_REDRAW_BORDER_LEFT); + if (px == ex) + return (SCREEN_REDRAW_BORDER_RIGHT); + } + } + + /* Top/bottom borders. */ + if (pane_status == PANE_STATUS_OFF) { + if (screen_redraw_two_panes(wp->window, 1) && split) { + if (wp->yoff == 0 && py == wp->sy && px <= wp->sx / 2) + return (SCREEN_REDRAW_BORDER_BOTTOM); + if (wp->yoff != 0 && + py == wp->yoff - 1 && + px > wp->sx / 2) + return (SCREEN_REDRAW_BORDER_TOP); + } else { + if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { + if (wp->yoff != 0 && py == wp->yoff - 1) + return (SCREEN_REDRAW_BORDER_TOP); + if (py == ey) + return (SCREEN_REDRAW_BORDER_BOTTOM); + } + } + } else if (pane_status == PANE_STATUS_TOP) { + if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { + if (wp->yoff != 0 && py == wp->yoff - 1) + return (SCREEN_REDRAW_BORDER_TOP); + } + } else { + if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= ex) { + if (py == ey) + return (SCREEN_REDRAW_BORDER_BOTTOM); + } + } + + /* Outside pane. */ + return (SCREEN_REDRAW_OUTSIDE); +} + +/* Check if a cell is on a border. */ +static int +screen_redraw_cell_border(struct client *c, u_int px, u_int py, int pane_status) +{ + struct window *w = c->session->curw->window; + struct window_pane *wp; + + /* Outside the window? */ + if (px > w->sx || py > w->sy) + return (0); + + /* On the window border? */ + if (px == w->sx || py == w->sy) + return (1); + + /* Check all the panes. */ + TAILQ_FOREACH(wp, &w->panes, entry) { + if (!window_pane_visible(wp)) + continue; + switch (screen_redraw_pane_border(wp, px, py, pane_status)) { + case SCREEN_REDRAW_INSIDE: + return (0); + case SCREEN_REDRAW_OUTSIDE: + break; + default: + return (1); + } + } + + return (0); +} + +/* Work out type of border cell from surrounding cells. */ +static int +screen_redraw_type_of_cell(struct client *c, u_int px, u_int py, + int pane_status) +{ + struct window *w = c->session->curw->window; + u_int sx = w->sx, sy = w->sy; + int borders = 0; + + /* Is this outside the window? */ + if (px > sx || py > sy) + return (CELL_OUTSIDE); + + /* + * Construct a bitmask of whether the cells to the left (bit 4), right, + * top, and bottom (bit 1) of this cell are borders. + */ + if (px == 0 || screen_redraw_cell_border(c, px - 1, py, pane_status)) + borders |= 8; + if (px <= sx && screen_redraw_cell_border(c, px + 1, py, pane_status)) + borders |= 4; + if (pane_status == PANE_STATUS_TOP) { + if (py != 0 && + screen_redraw_cell_border(c, px, py - 1, pane_status)) + borders |= 2; + if (screen_redraw_cell_border(c, px, py + 1, pane_status)) + borders |= 1; + } else if (pane_status == PANE_STATUS_BOTTOM) { + if (py == 0 || + screen_redraw_cell_border(c, px, py - 1, pane_status)) + borders |= 2; + if (py != sy - 1 && + screen_redraw_cell_border(c, px, py + 1, pane_status)) + borders |= 1; + } else { + if (py == 0 || + screen_redraw_cell_border(c, px, py - 1, pane_status)) + borders |= 2; + if (screen_redraw_cell_border(c, px, py + 1, pane_status)) + borders |= 1; + } + + /* + * Figure out what kind of border this cell is. Only one bit set + * doesn't make sense (can't have a border cell with no others + * connected). + */ + switch (borders) { + case 15: /* 1111, left right top bottom */ + return (CELL_JOIN); + case 14: /* 1110, left right top */ + return (CELL_BOTTOMJOIN); + case 13: /* 1101, left right bottom */ + return (CELL_TOPJOIN); + case 12: /* 1100, left right */ + return (CELL_LEFTRIGHT); + case 11: /* 1011, left top bottom */ + return (CELL_RIGHTJOIN); + case 10: /* 1010, left top */ + return (CELL_BOTTOMRIGHT); + case 9: /* 1001, left bottom */ + return (CELL_TOPRIGHT); + case 7: /* 0111, right top bottom */ + return (CELL_LEFTJOIN); + case 6: /* 0110, right top */ + return (CELL_BOTTOMLEFT); + case 5: /* 0101, right bottom */ + return (CELL_TOPLEFT); + case 3: /* 0011, top bottom */ + return (CELL_TOPBOTTOM); + } + return (CELL_OUTSIDE); +} + +/* Check if cell inside a pane. */ +static int +screen_redraw_check_cell(struct client *c, u_int px, u_int py, int pane_status, + struct window_pane **wpp) +{ + struct window *w = c->session->curw->window; + struct window_pane *wp, *active; + int border; + u_int right, line; + + *wpp = NULL; + + if (px > w->sx || py > w->sy) + return (CELL_OUTSIDE); + if (px == w->sx || py == w->sy) /* window border */ + return (screen_redraw_type_of_cell(c, px, py, pane_status)); + + if (pane_status != PANE_STATUS_OFF) { + active = wp = server_client_get_pane(c); + do { + if (!window_pane_visible(wp)) + goto next1; + + if (pane_status == PANE_STATUS_TOP) + line = wp->yoff - 1; + else + line = wp->yoff + wp->sy; + right = wp->xoff + 2 + wp->status_size - 1; + + if (py == line && px >= wp->xoff + 2 && px <= right) + return (CELL_INSIDE); + + next1: + wp = TAILQ_NEXT(wp, entry); + if (wp == NULL) + wp = TAILQ_FIRST(&w->panes); + } while (wp != active); + } + + active = wp = server_client_get_pane(c); + do { + if (!window_pane_visible(wp)) + goto next2; + *wpp = wp; + + /* + * If definitely inside, return. If not on border, skip. + * Otherwise work out the cell. + */ + border = screen_redraw_pane_border(wp, px, py, pane_status); + if (border == SCREEN_REDRAW_INSIDE) + return (CELL_INSIDE); + if (border == SCREEN_REDRAW_OUTSIDE) + goto next2; + return (screen_redraw_type_of_cell(c, px, py, pane_status)); + + next2: + wp = TAILQ_NEXT(wp, entry); + if (wp == NULL) + wp = TAILQ_FIRST(&w->panes); + } while (wp != active); + + return (CELL_OUTSIDE); +} + +/* Check if the border of a particular pane. */ +static int +screen_redraw_check_is(u_int px, u_int py, int pane_status, + struct window_pane *wp) +{ + enum screen_redraw_border_type border; + + border = screen_redraw_pane_border(wp, px, py, pane_status); + if (border != SCREEN_REDRAW_INSIDE && border != SCREEN_REDRAW_OUTSIDE) + return (1); + return (0); +} + +/* Update pane status. */ +static int +screen_redraw_make_pane_status(struct client *c, struct window_pane *wp, + struct screen_redraw_ctx *rctx, enum pane_lines pane_lines) +{ + struct window *w = wp->window; + struct grid_cell gc; + const char *fmt; + struct format_tree *ft; + char *expanded; + int pane_status = rctx->pane_status; + u_int width, i, cell_type, px, py; + struct screen_write_ctx ctx; + struct screen old; + + ft = format_create(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS); + format_defaults(ft, c, c->session, c->session->curw, wp); + + if (wp == server_client_get_pane(c)) + style_apply(&gc, w->options, "pane-active-border-style", ft); + else + style_apply(&gc, w->options, "pane-border-style", ft); + fmt = options_get_string(wp->options, "pane-border-format"); + + expanded = format_expand_time(ft, fmt); + if (wp->sx < 4) + wp->status_size = width = 0; + else + wp->status_size = width = wp->sx - 4; + + memcpy(&old, &wp->status_screen, sizeof old); + screen_init(&wp->status_screen, width, 1, 0); + wp->status_screen.mode = 0; + + screen_write_start(&ctx, &wp->status_screen); + + for (i = 0; i < width; i++) { + px = wp->xoff + 2 + i; + if (rctx->pane_status == PANE_STATUS_TOP) + py = wp->yoff - 1; + else + py = wp->yoff + wp->sy; + cell_type = screen_redraw_type_of_cell(c, px, py, pane_status); + screen_redraw_border_set(w, wp, pane_lines, cell_type, &gc); + screen_write_cell(&ctx, &gc); + } + gc.attr &= ~GRID_ATTR_CHARSET; + + screen_write_cursormove(&ctx, 0, 0, 0); + format_draw(&ctx, &gc, width, expanded, NULL, 0); + screen_write_stop(&ctx); + + free(expanded); + format_free(ft); + + if (grid_compare(wp->status_screen.grid, old.grid) == 0) { + screen_free(&old); + return (0); + } + screen_free(&old); + return (1); +} + +/* Draw pane status. */ +static void +screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx) +{ + struct client *c = ctx->c; + struct window *w = c->session->curw->window; + struct tty *tty = &c->tty; + struct window_pane *wp; + struct screen *s; + u_int i, x, width, xoff, yoff, size; + + log_debug("%s: %s @%u", __func__, c->name, w->id); + + TAILQ_FOREACH(wp, &w->panes, entry) { + if (!window_pane_visible(wp)) + continue; + s = &wp->status_screen; + + size = wp->status_size; + if (ctx->pane_status == PANE_STATUS_TOP) + yoff = wp->yoff - 1; + else + yoff = wp->yoff + wp->sy; + xoff = wp->xoff + 2; + + if (xoff + size <= ctx->ox || + xoff >= ctx->ox + ctx->sx || + yoff < ctx->oy || + yoff >= ctx->oy + ctx->sy) + continue; + + if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) { + /* All visible. */ + i = 0; + x = xoff - ctx->ox; + width = size; + } else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) { + /* Both left and right not visible. */ + i = ctx->ox; + x = 0; + width = ctx->sx; + } else if (xoff < ctx->ox) { + /* Left not visible. */ + i = ctx->ox - xoff; + x = 0; + width = size - i; + } else { + /* Right not visible. */ + i = 0; + x = xoff - ctx->ox; + width = size - x; + } + + if (ctx->statustop) + yoff += ctx->statuslines; + tty_draw_line(tty, s, i, 0, width, x, yoff - ctx->oy, + &grid_default_cell, NULL); + } + tty_cursor(tty, 0, 0); +} + +/* Update status line and change flags if unchanged. */ +static int +screen_redraw_update(struct client *c, int flags) +{ + struct window *w = c->session->curw->window; + struct window_pane *wp; + struct options *wo = w->options; + int redraw; + enum pane_lines lines; + struct screen_redraw_ctx ctx; + + if (c->message_string != NULL) + redraw = status_message_redraw(c); + else if (c->prompt_string != NULL) + redraw = status_prompt_redraw(c); + else + redraw = status_redraw(c); + if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS)) + flags &= ~CLIENT_REDRAWSTATUS; + + if (c->overlay_draw != NULL) + flags |= CLIENT_REDRAWOVERLAY; + + if (options_get_number(wo, "pane-border-status") != PANE_STATUS_OFF) { + screen_redraw_set_context(c, &ctx); + lines = options_get_number(wo, "pane-border-lines"); + redraw = 0; + TAILQ_FOREACH(wp, &w->panes, entry) { + if (screen_redraw_make_pane_status(c, wp, &ctx, lines)) + redraw = 1; + } + if (redraw) + flags |= CLIENT_REDRAWBORDERS; + } + return (flags); +} + +/* Set up redraw context. */ +static void +screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx) +{ + struct session *s = c->session; + struct options *oo = s->options; + struct window *w = s->curw->window; + struct options *wo = w->options; + u_int lines; + + memset(ctx, 0, sizeof *ctx); + ctx->c = c; + + lines = status_line_size(c); + if (c->message_string != NULL || c->prompt_string != NULL) + lines = (lines == 0) ? 1 : lines; + if (lines != 0 && options_get_number(oo, "status-position") == 0) + ctx->statustop = 1; + ctx->statuslines = lines; + + ctx->pane_status = options_get_number(wo, "pane-border-status"); + ctx->pane_lines = options_get_number(wo, "pane-border-lines"); + + tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy); + + log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name, + w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->statuslines, + ctx->statustop); +} + +/* Redraw entire screen. */ +void +screen_redraw_screen(struct client *c) +{ + struct screen_redraw_ctx ctx; + int flags; + + if (c->flags & CLIENT_SUSPENDED) + return; + + flags = screen_redraw_update(c, c->flags); + if ((flags & CLIENT_ALLREDRAWFLAGS) == 0) + return; + + screen_redraw_set_context(c, &ctx); + tty_sync_start(&c->tty); + tty_update_mode(&c->tty, c->tty.mode, NULL); + + if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) { + log_debug("%s: redrawing borders", c->name); + if (ctx.pane_status != PANE_STATUS_OFF) + screen_redraw_draw_pane_status(&ctx); + screen_redraw_draw_borders(&ctx); + } + if (flags & CLIENT_REDRAWWINDOW) { + log_debug("%s: redrawing panes", c->name); + screen_redraw_draw_panes(&ctx); + } + if (ctx.statuslines != 0 && + (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS))) { + log_debug("%s: redrawing status", c->name); + screen_redraw_draw_status(&ctx); + } + if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY)) { + log_debug("%s: redrawing overlay", c->name); + c->overlay_draw(c, c->overlay_data, &ctx); + } + + tty_reset(&c->tty); +} + +/* Redraw a single pane. */ +void +screen_redraw_pane(struct client *c, struct window_pane *wp) +{ + struct screen_redraw_ctx ctx; + + if (!window_pane_visible(wp)) + return; + + screen_redraw_set_context(c, &ctx); + tty_sync_start(&c->tty); + tty_update_mode(&c->tty, c->tty.mode, NULL); + + screen_redraw_draw_pane(&ctx, wp); + + tty_reset(&c->tty); +} + +/* Get border cell style. */ +static const struct grid_cell * +screen_redraw_draw_borders_style(struct screen_redraw_ctx *ctx, u_int x, + u_int y, struct window_pane *wp) +{ + struct client *c = ctx->c; + struct session *s = c->session; + struct window *w = s->curw->window; + struct window_pane *active = server_client_get_pane(c); + struct options *oo = w->options; + struct format_tree *ft; + + if (wp->border_gc_set) + return (&wp->border_gc); + wp->border_gc_set = 1; + + ft = format_create_defaults(NULL, c, s, s->curw, wp); + if (screen_redraw_check_is(x, y, ctx->pane_status, active)) + style_apply(&wp->border_gc, oo, "pane-active-border-style", ft); + else + style_apply(&wp->border_gc, oo, "pane-border-style", ft); + format_free(ft); + + return (&wp->border_gc); +} + +/* Draw a border cell. */ +static void +screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j) +{ + struct client *c = ctx->c; + struct session *s = c->session; + struct window *w = s->curw->window; + struct options *oo = w->options; + struct tty *tty = &c->tty; + struct format_tree *ft; + struct window_pane *wp, *active = server_client_get_pane(c); + struct grid_cell gc; + const struct grid_cell *tmp; + struct overlay_ranges r; + u_int cell_type, x = ctx->ox + i, y = ctx->oy + j; + int arrows = 0, border; + int pane_status = ctx->pane_status, isolates; + + if (c->overlay_check != NULL) { + c->overlay_check(c, c->overlay_data, x, y, 1, &r); + if (r.nx[0] + r.nx[1] == 0) + return; + } + + cell_type = screen_redraw_check_cell(c, x, y, pane_status, &wp); + if (cell_type == CELL_INSIDE) + return; + + if (wp == NULL) { + if (!ctx->no_pane_gc_set) { + ft = format_create_defaults(NULL, c, s, s->curw, NULL); + memcpy(&ctx->no_pane_gc, &grid_default_cell, sizeof gc); + style_add(&ctx->no_pane_gc, oo, "pane-border-style", + ft); + format_free(ft); + ctx->no_pane_gc_set = 1; + } + memcpy(&gc, &ctx->no_pane_gc, sizeof gc); + } else { + tmp = screen_redraw_draw_borders_style(ctx, x, y, wp); + if (tmp == NULL) + return; + memcpy(&gc, tmp, sizeof gc); + + if (server_is_marked(s, s->curw, marked_pane.wp) && + screen_redraw_check_is(x, y, pane_status, marked_pane.wp)) + gc.attr ^= GRID_ATTR_REVERSE; + } + screen_redraw_border_set(w, wp, ctx->pane_lines, cell_type, &gc); + + if (cell_type == CELL_TOPBOTTOM && + (c->flags & CLIENT_UTF8) && + tty_term_has(tty->term, TTYC_BIDI)) + isolates = 1; + else + isolates = 0; + + if (ctx->statustop) + tty_cursor(tty, i, ctx->statuslines + j); + else + tty_cursor(tty, i, j); + if (isolates) + tty_puts(tty, END_ISOLATE); + + switch (options_get_number(oo, "pane-border-indicators")) { + case PANE_BORDER_ARROWS: + case PANE_BORDER_BOTH: + arrows = 1; + break; + } + + if (wp != NULL && arrows) { + border = screen_redraw_pane_border(active, x, y, pane_status); + if (((i == wp->xoff + 1 && + (cell_type == CELL_LEFTRIGHT || + (cell_type == CELL_TOPJOIN && + border == SCREEN_REDRAW_BORDER_BOTTOM) || + (cell_type == CELL_BOTTOMJOIN && + border == SCREEN_REDRAW_BORDER_TOP))) || + (j == wp->yoff + 1 && + (cell_type == CELL_TOPBOTTOM || + (cell_type == CELL_LEFTJOIN && + border == SCREEN_REDRAW_BORDER_RIGHT) || + (cell_type == CELL_RIGHTJOIN && + border == SCREEN_REDRAW_BORDER_LEFT)))) && + screen_redraw_check_is(x, y, pane_status, active)) { + gc.attr |= GRID_ATTR_CHARSET; + utf8_set(&gc.data, BORDER_MARKERS[border]); + } + } + + tty_cell(tty, &gc, &grid_default_cell, NULL); + if (isolates) + tty_puts(tty, START_ISOLATE); +} + +/* 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 window_pane *wp; + u_int i, j; + + log_debug("%s: %s @%u", __func__, c->name, w->id); + + TAILQ_FOREACH(wp, &w->panes, entry) + wp->border_gc_set = 0; + + for (j = 0; j < c->tty.sy - ctx->statuslines; j++) { + for (i = 0; i < c->tty.sx; i++) + screen_redraw_draw_borders_cell(ctx, i, j); + } +} + +/* 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); + } +} + +/* 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, s, 0, i, UINT_MAX, 0, y + i, + &grid_default_cell, NULL); + } +} + +/* 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 = wp->screen; + struct colour_palette *palette = &wp->palette; + struct grid_cell defaults; + 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; + 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_default_colours(&defaults, wp); + tty_draw_line(tty, s, i, j, width, x, y, &defaults, palette); + } +} |