diff options
Diffstat (limited to 'grid-view.c')
| -rw-r--r-- | grid-view.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/grid-view.c b/grid-view.c new file mode 100644 index 0000000..f230d3c --- /dev/null +++ b/grid-view.c @@ -0,0 +1,235 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2008 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 <string.h> + +#include "tmux.h" + +/* + * Grid view functions. These work using coordinates relative to the visible + * screen area. + */ + +#define grid_view_x(gd, x) (x) +#define grid_view_y(gd, y) ((gd)->hsize + (y)) + +/* Get cell. */ +void +grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc) +{ + grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc); +} + +/* Set cell. */ +void +grid_view_set_cell(struct grid *gd, u_int px, u_int py, + const struct grid_cell *gc) +{ + grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc); +} + +/* Set padding. */ +void +grid_view_set_padding(struct grid *gd, u_int px, u_int py) +{ + grid_set_padding(gd, grid_view_x(gd, px), grid_view_y(gd, py)); +} + +/* Set cells. */ +void +grid_view_set_cells(struct grid *gd, u_int px, u_int py, + const struct grid_cell *gc, const char *s, size_t slen) +{ + grid_set_cells(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc, s, + slen); +} + +/* Clear into history. */ +void +grid_view_clear_history(struct grid *gd, u_int bg) +{ + struct grid_line *gl; + u_int yy, last; + + /* Find the last used line. */ + last = 0; + for (yy = 0; yy < gd->sy; yy++) { + gl = grid_get_line(gd, grid_view_y(gd, yy)); + if (gl->cellused != 0) + last = yy + 1; + } + if (last == 0) { + grid_view_clear(gd, 0, 0, gd->sx, gd->sy, bg); + return; + } + + /* Scroll the lines into the history. */ + for (yy = 0; yy < last; yy++) { + grid_collect_history(gd); + grid_scroll_history(gd, bg); + } + if (last < gd->sy) + grid_view_clear(gd, 0, 0, gd->sx, gd->sy - last, bg); + gd->hscrolled = 0; +} + +/* Clear area. */ +void +grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, + u_int bg) +{ + px = grid_view_x(gd, px); + py = grid_view_y(gd, py); + + grid_clear(gd, px, py, nx, ny, bg); +} + +/* Scroll region up. */ +void +grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower, + u_int bg) +{ + if (gd->flags & GRID_HISTORY) { + grid_collect_history(gd); + if (rupper == 0 && rlower == gd->sy - 1) + grid_scroll_history(gd, bg); + else { + rupper = grid_view_y(gd, rupper); + rlower = grid_view_y(gd, rlower); + grid_scroll_history_region(gd, rupper, rlower, bg); + } + } else { + rupper = grid_view_y(gd, rupper); + rlower = grid_view_y(gd, rlower); + grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, bg); + } +} + +/* Scroll region down. */ +void +grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower, + u_int bg) +{ + rupper = grid_view_y(gd, rupper); + rlower = grid_view_y(gd, rlower); + + grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, bg); +} + +/* Insert lines. */ +void +grid_view_insert_lines(struct grid *gd, u_int py, u_int ny, u_int bg) +{ + u_int sy; + + py = grid_view_y(gd, py); + + sy = grid_view_y(gd, gd->sy); + + grid_move_lines(gd, py + ny, py, sy - py - ny, bg); +} + +/* Insert lines in region. */ +void +grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py, + u_int ny, u_int bg) +{ + u_int ny2; + + rlower = grid_view_y(gd, rlower); + + py = grid_view_y(gd, py); + + ny2 = rlower + 1 - py - ny; + grid_move_lines(gd, rlower + 1 - ny2, py, ny2, bg); + grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg); +} + +/* Delete lines. */ +void +grid_view_delete_lines(struct grid *gd, u_int py, u_int ny, u_int bg) +{ + u_int sy; + + py = grid_view_y(gd, py); + + sy = grid_view_y(gd, gd->sy); + + grid_move_lines(gd, py, py + ny, sy - py - ny, bg); + grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny), bg); +} + +/* Delete lines inside scroll region. */ +void +grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py, + u_int ny, u_int bg) +{ + u_int ny2; + + rlower = grid_view_y(gd, rlower); + + py = grid_view_y(gd, py); + + ny2 = rlower + 1 - py - ny; + grid_move_lines(gd, py, py + ny, ny2, bg); + grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg); +} + +/* Insert characters. */ +void +grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg) +{ + u_int sx; + + px = grid_view_x(gd, px); + py = grid_view_y(gd, py); + + sx = grid_view_x(gd, gd->sx); + + if (px >= sx - 1) + grid_clear(gd, px, py, 1, 1, bg); + else + grid_move_cells(gd, px + nx, px, py, sx - px - nx, bg); +} + +/* Delete characters. */ +void +grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg) +{ + u_int sx; + + px = grid_view_x(gd, px); + py = grid_view_y(gd, py); + + sx = grid_view_x(gd, gd->sx); + + grid_move_cells(gd, px, px + nx, py, sx - px - nx, bg); + grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1, bg); +} + +/* Convert cells into a string. */ +char * +grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx) +{ + px = grid_view_x(gd, px); + py = grid_view_y(gd, py); + + return (grid_string_cells(gd, px, py, nx, NULL, 0, 0, 0)); +} |