Annotation of src/usr.bin/tmux/grid-view.c, Revision 1.26
1.26 ! nicm 1: /* $OpenBSD: grid-view.c,v 1.25 2016/09/02 20:57:20 nicm Exp $ */
1.1 nicm 2:
3: /*
1.24 nicm 4: * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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:
1.23 nicm 33: /* Get cell. */
1.22 nicm 34: void
35: grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
1.1 nicm 36: {
1.22 nicm 37: grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
1.1 nicm 38: }
39:
40: /* Set cell. */
41: void
1.22 nicm 42: grid_view_set_cell(struct grid *gd, u_int px, u_int py,
43: const struct grid_cell *gc)
1.1 nicm 44: {
45: grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
46: }
47:
1.9 nicm 48: /* Clear into history. */
49: void
1.26 ! nicm 50: grid_view_clear_history(struct grid *gd, u_int bg)
1.9 nicm 51: {
52: struct grid_line *gl;
53: u_int yy, last;
54:
55: /* Find the last used line. */
56: last = 0;
57: for (yy = 0; yy < gd->sy; yy++) {
58: gl = &gd->linedata[grid_view_y(gd, yy)];
1.26 ! nicm 59: if (gl->cellused != 0)
1.9 nicm 60: last = yy + 1;
61: }
1.26 ! nicm 62: if (last == 0) {
! 63: grid_view_clear(gd, 0, 0, gd->sx, gd->sy, bg);
1.9 nicm 64: return;
1.26 ! nicm 65: }
1.9 nicm 66:
67: /* Scroll the lines into the history. */
1.10 nicm 68: for (yy = 0; yy < last; yy++) {
1.26 ! nicm 69: grid_collect_history(gd, bg);
! 70: grid_scroll_history(gd, bg);
1.10 nicm 71: }
1.26 ! nicm 72: if (last < gd->sy)
! 73: grid_view_clear(gd, 0, 0, gd->sx, gd->sy - last, bg);
1.25 nicm 74: gd->hscrolled = 0;
1.1 nicm 75: }
76:
77: /* Clear area. */
78: void
1.26 ! nicm 79: grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny,
! 80: u_int bg)
1.1 nicm 81: {
82: px = grid_view_x(gd, px);
83: py = grid_view_y(gd, py);
84:
1.26 ! nicm 85: grid_clear(gd, px, py, nx, ny, bg);
1.1 nicm 86: }
87:
88: /* Scroll region up. */
89: void
90: grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
91: {
1.7 nicm 92: if (gd->flags & GRID_HISTORY) {
1.26 ! nicm 93: grid_collect_history(gd, 8);
1.7 nicm 94: if (rupper == 0 && rlower == gd->sy - 1)
1.26 ! nicm 95: grid_scroll_history(gd, 8);
1.7 nicm 96: else {
97: rupper = grid_view_y(gd, rupper);
98: rlower = grid_view_y(gd, rlower);
99: grid_scroll_history_region(gd, rupper, rlower);
100: }
101: } else {
102: rupper = grid_view_y(gd, rupper);
103: rlower = grid_view_y(gd, rlower);
1.26 ! nicm 104: grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, 8);
1.1 nicm 105: }
106: }
107:
108: /* Scroll region down. */
109: void
110: grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower)
111: {
112: rupper = grid_view_y(gd, rupper);
113: rlower = grid_view_y(gd, rlower);
114:
1.26 ! nicm 115: grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, 8);
1.1 nicm 116: }
117:
118: /* Insert lines. */
119: void
1.26 ! nicm 120: grid_view_insert_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
1.1 nicm 121: {
122: u_int sy;
123:
124: py = grid_view_y(gd, py);
125:
126: sy = grid_view_y(gd, gd->sy);
127:
1.26 ! nicm 128: grid_move_lines(gd, py + ny, py, sy - py - ny, bg);
1.1 nicm 129: }
130:
131: /* Insert lines in region. */
132: void
1.16 nicm 133: grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py,
1.26 ! nicm 134: u_int ny, u_int bg)
1.1 nicm 135: {
1.5 nicm 136: u_int ny2;
137:
1.1 nicm 138: rlower = grid_view_y(gd, rlower);
139:
140: py = grid_view_y(gd, py);
141:
1.5 nicm 142: ny2 = rlower + 1 - py - ny;
1.26 ! nicm 143: grid_move_lines(gd, rlower + 1 - ny2, py, ny2, bg);
! 144: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg);
1.1 nicm 145: }
146:
147: /* Delete lines. */
148: void
1.26 ! nicm 149: grid_view_delete_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
1.1 nicm 150: {
151: u_int sy;
152:
153: py = grid_view_y(gd, py);
154:
155: sy = grid_view_y(gd, gd->sy);
156:
1.26 ! nicm 157: grid_move_lines(gd, py, py + ny, sy - py - ny, bg);
! 158: grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny), bg);
1.1 nicm 159: }
160:
161: /* Delete lines inside scroll region. */
162: void
1.16 nicm 163: grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py,
1.26 ! nicm 164: u_int ny, u_int bg)
1.1 nicm 165: {
1.5 nicm 166: u_int ny2;
167:
1.1 nicm 168: rlower = grid_view_y(gd, rlower);
169:
170: py = grid_view_y(gd, py);
171:
1.5 nicm 172: ny2 = rlower + 1 - py - ny;
1.26 ! nicm 173: grid_move_lines(gd, py, py + ny, ny2, bg);
! 174: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg);
1.1 nicm 175: }
176:
177: /* Insert characters. */
178: void
1.26 ! nicm 179: grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
1.1 nicm 180: {
181: u_int sx;
182:
183: px = grid_view_x(gd, px);
184: py = grid_view_y(gd, py);
185:
1.21 nicm 186: sx = grid_view_x(gd, gd->sx);
1.1 nicm 187:
188: if (px == sx - 1)
1.26 ! nicm 189: grid_clear(gd, px, py, 1, 1, bg);
1.1 nicm 190: else
1.26 ! nicm 191: grid_move_cells(gd, px + nx, px, py, sx - px - nx, bg);
1.1 nicm 192: }
193:
194: /* Delete characters. */
195: void
1.26 ! nicm 196: grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
1.1 nicm 197: {
198: u_int sx;
199:
200: px = grid_view_x(gd, px);
201: py = grid_view_y(gd, py);
202:
1.21 nicm 203: sx = grid_view_x(gd, gd->sx);
1.1 nicm 204:
1.26 ! nicm 205: grid_move_cells(gd, px, px + nx, py, sx - px - nx, bg);
! 206: grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1, bg);
1.2 nicm 207: }
208:
209: /* Convert cells into a string. */
210: char *
211: grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
212: {
213: px = grid_view_x(gd, px);
214: py = grid_view_y(gd, py);
215:
1.14 nicm 216: return (grid_string_cells(gd, px, py, nx, NULL, 0, 0, 0));
1.1 nicm 217: }
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