Annotation of src/usr.bin/tmux/grid-view.c, Revision 1.24
1.24 ! nicm 1: /* $OpenBSD: grid-view.c,v 1.23 2015/11/13 12:18:52 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
50: grid_view_clear_history(struct grid *gd)
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)];
1.11 nicm 59: if (gl->cellsize != 0)
1.9 nicm 60: last = yy + 1;
61: }
62: if (last == 0)
63: return;
64:
65: /* Scroll the lines into the history. */
1.10 nicm 66: for (yy = 0; yy < last; yy++) {
67: grid_collect_history(gd);
1.9 nicm 68: grid_scroll_history(gd);
1.10 nicm 69: }
1.1 nicm 70: }
71:
72: /* Clear area. */
73: void
74: grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny)
75: {
76: px = grid_view_x(gd, px);
77: py = grid_view_y(gd, py);
78:
79: grid_clear(gd, px, py, nx, ny);
80: }
81:
82: /* Scroll region up. */
83: void
84: grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
85: {
1.7 nicm 86: if (gd->flags & GRID_HISTORY) {
87: grid_collect_history(gd);
88: if (rupper == 0 && rlower == gd->sy - 1)
89: grid_scroll_history(gd);
90: else {
91: rupper = grid_view_y(gd, rupper);
92: rlower = grid_view_y(gd, rlower);
93: grid_scroll_history_region(gd, rupper, rlower);
94: }
95: } else {
96: rupper = grid_view_y(gd, rupper);
97: rlower = grid_view_y(gd, rlower);
98: grid_move_lines(gd, rupper, rupper + 1, rlower - rupper);
1.1 nicm 99: }
100: }
101:
102: /* Scroll region down. */
103: void
104: grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower)
105: {
106: rupper = grid_view_y(gd, rupper);
107: rlower = grid_view_y(gd, rlower);
108:
109: grid_move_lines(gd, rupper + 1, rupper, rlower - rupper);
110: }
111:
112: /* Insert lines. */
113: void
114: grid_view_insert_lines(struct grid *gd, u_int py, u_int ny)
115: {
116: u_int sy;
117:
118: py = grid_view_y(gd, py);
119:
120: sy = grid_view_y(gd, gd->sy);
121:
122: grid_move_lines(gd, py + ny, py, sy - py - ny);
123: }
124:
125: /* Insert lines in region. */
126: void
1.16 nicm 127: grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py,
128: u_int ny)
1.1 nicm 129: {
1.5 nicm 130: u_int ny2;
131:
1.1 nicm 132: rlower = grid_view_y(gd, rlower);
133:
134: py = grid_view_y(gd, py);
135:
1.5 nicm 136: ny2 = rlower + 1 - py - ny;
137: grid_move_lines(gd, rlower + 1 - ny2, py, ny2);
1.8 nicm 138: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
1.1 nicm 139: }
140:
141: /* Delete lines. */
142: void
143: grid_view_delete_lines(struct grid *gd, u_int py, u_int ny)
144: {
145: u_int sy;
146:
147: py = grid_view_y(gd, py);
148:
149: sy = grid_view_y(gd, gd->sy);
150:
151: grid_move_lines(gd, py, py + ny, sy - py - ny);
1.8 nicm 152: grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny));
1.1 nicm 153: }
154:
155: /* Delete lines inside scroll region. */
156: void
1.16 nicm 157: grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py,
158: u_int ny)
1.1 nicm 159: {
1.5 nicm 160: u_int ny2;
161:
1.1 nicm 162: rlower = grid_view_y(gd, rlower);
163:
164: py = grid_view_y(gd, py);
165:
1.5 nicm 166: ny2 = rlower + 1 - py - ny;
167: grid_move_lines(gd, py, py + ny, ny2);
1.8 nicm 168: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
1.1 nicm 169: }
170:
171: /* Insert characters. */
172: void
173: grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx)
174: {
175: u_int sx;
176:
177: px = grid_view_x(gd, px);
178: py = grid_view_y(gd, py);
179:
1.21 nicm 180: sx = grid_view_x(gd, gd->sx);
1.1 nicm 181:
182: if (px == sx - 1)
183: grid_clear(gd, px, py, 1, 1);
184: else
1.3 nicm 185: grid_move_cells(gd, px + nx, px, py, sx - px - nx);
1.1 nicm 186: }
187:
188: /* Delete characters. */
189: void
190: grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx)
191: {
192: u_int sx;
193:
194: px = grid_view_x(gd, px);
195: py = grid_view_y(gd, py);
196:
1.21 nicm 197: sx = grid_view_x(gd, gd->sx);
1.1 nicm 198:
1.3 nicm 199: grid_move_cells(gd, px, px + nx, py, sx - px - nx);
200: grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1);
1.2 nicm 201: }
202:
203: /* Convert cells into a string. */
204: char *
205: grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
206: {
207: px = grid_view_x(gd, px);
208: py = grid_view_y(gd, py);
209:
1.14 nicm 210: return (grid_string_cells(gd, px, py, nx, NULL, 0, 0, 0));
1.1 nicm 211: }
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