1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott (at) gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 21 #include <string.h> 22 23 #include "tmux.h" 24 25 /* 26 * Grid view functions. These work using coordinates relative to the visible 27 * screen area. 28 */ 29 30 #define grid_view_x(gd, x) (x) 31 #define grid_view_y(gd, y) ((gd)->hsize + (y)) 32 33 /* Get cell. */ 34 void 35 grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc) 36 { 37 grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc); 38 } 39 40 /* Set cell. */ 41 void 42 grid_view_set_cell(struct grid *gd, u_int px, u_int py, 43 const struct grid_cell *gc) 44 { 45 grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc); 46 } 47 48 /* Set padding. */ 49 void 50 grid_view_set_padding(struct grid *gd, u_int px, u_int py) 51 { 52 grid_set_padding(gd, grid_view_x(gd, px), grid_view_y(gd, py)); 53 } 54 55 /* Set cells. */ 56 void 57 grid_view_set_cells(struct grid *gd, u_int px, u_int py, 58 const struct grid_cell *gc, const char *s, size_t slen) 59 { 60 grid_set_cells(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc, s, 61 slen); 62 } 63 64 /* Clear into history. */ 65 void 66 grid_view_clear_history(struct grid *gd, u_int bg) 67 { 68 struct grid_line *gl; 69 u_int yy, last; 70 71 /* Find the last used line. */ 72 last = 0; 73 for (yy = 0; yy < gd->sy; yy++) { 74 gl = grid_get_line(gd, grid_view_y(gd, yy)); 75 if (gl->cellused != 0) 76 last = yy + 1; 77 } 78 if (last == 0) { 79 grid_view_clear(gd, 0, 0, gd->sx, gd->sy, bg); 80 return; 81 } 82 83 /* Scroll the lines into the history. */ 84 for (yy = 0; yy < last; yy++) { 85 grid_collect_history(gd); 86 grid_scroll_history(gd, bg); 87 } 88 if (last < gd->sy) 89 grid_view_clear(gd, 0, 0, gd->sx, gd->sy - last, bg); 90 gd->hscrolled = 0; 91 } 92 93 /* Clear area. */ 94 void 95 grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, 96 u_int bg) 97 { 98 px = grid_view_x(gd, px); 99 py = grid_view_y(gd, py); 100 101 grid_clear(gd, px, py, nx, ny, bg); 102 } 103 104 /* Scroll region up. */ 105 void 106 grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower, 107 u_int bg) 108 { 109 if (gd->flags & GRID_HISTORY) { 110 grid_collect_history(gd); 111 if (rupper == 0 && rlower == gd->sy - 1) 112 grid_scroll_history(gd, bg); 113 else { 114 rupper = grid_view_y(gd, rupper); 115 rlower = grid_view_y(gd, rlower); 116 grid_scroll_history_region(gd, rupper, rlower, bg); 117 } 118 } else { 119 rupper = grid_view_y(gd, rupper); 120 rlower = grid_view_y(gd, rlower); 121 grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, bg); 122 } 123 } 124 125 /* Scroll region down. */ 126 void 127 grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower, 128 u_int bg) 129 { 130 rupper = grid_view_y(gd, rupper); 131 rlower = grid_view_y(gd, rlower); 132 133 grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, bg); 134 } 135 136 /* Insert lines. */ 137 void 138 grid_view_insert_lines(struct grid *gd, u_int py, u_int ny, u_int bg) 139 { 140 u_int sy; 141 142 py = grid_view_y(gd, py); 143 144 sy = grid_view_y(gd, gd->sy); 145 146 grid_move_lines(gd, py + ny, py, sy - py - ny, bg); 147 } 148 149 /* Insert lines in region. */ 150 void 151 grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py, 152 u_int ny, u_int bg) 153 { 154 u_int ny2; 155 156 rlower = grid_view_y(gd, rlower); 157 158 py = grid_view_y(gd, py); 159 160 ny2 = rlower + 1 - py - ny; 161 grid_move_lines(gd, rlower + 1 - ny2, py, ny2, bg); 162 grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg); 163 } 164 165 /* Delete lines. */ 166 void 167 grid_view_delete_lines(struct grid *gd, u_int py, u_int ny, u_int bg) 168 { 169 u_int sy; 170 171 py = grid_view_y(gd, py); 172 173 sy = grid_view_y(gd, gd->sy); 174 175 grid_move_lines(gd, py, py + ny, sy - py - ny, bg); 176 grid_clear(gd, 0, sy - ny, gd->sx, ny, bg); 177 } 178 179 /* Delete lines inside scroll region. */ 180 void 181 grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py, 182 u_int ny, u_int bg) 183 { 184 u_int ny2; 185 186 rlower = grid_view_y(gd, rlower); 187 188 py = grid_view_y(gd, py); 189 190 ny2 = rlower + 1 - py - ny; 191 grid_move_lines(gd, py, py + ny, ny2, bg); 192 grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg); 193 } 194 195 /* Insert characters. */ 196 void 197 grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg) 198 { 199 u_int sx; 200 201 px = grid_view_x(gd, px); 202 py = grid_view_y(gd, py); 203 204 sx = grid_view_x(gd, gd->sx); 205 206 if (px >= sx - 1) 207 grid_clear(gd, px, py, 1, 1, bg); 208 else 209 grid_move_cells(gd, px + nx, px, py, sx - px - nx, bg); 210 } 211 212 /* Delete characters. */ 213 void 214 grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg) 215 { 216 u_int sx; 217 218 px = grid_view_x(gd, px); 219 py = grid_view_y(gd, py); 220 221 sx = grid_view_x(gd, gd->sx); 222 223 grid_move_cells(gd, px, px + nx, py, sx - px - nx, bg); 224 grid_clear(gd, sx - nx, py, nx, 1, bg); 225 } 226 227 /* Convert cells into a string. */ 228 char * 229 grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx) 230 { 231 px = grid_view_x(gd, px); 232 py = grid_view_y(gd, py); 233 234 return (grid_string_cells(gd, px, py, nx, NULL, 0, NULL)); 235 } 236
Indexes created Tue Feb 24 08:35:24 UTC 2026