Annotation of src/usr.bin/tmux/grid-view.c, Revision 1.11
1.11 ! nicm 1: /* $OpenBSD: grid-view.c,v 1.10 2012/01/29 21:31:11 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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 for reading. */
34: const struct grid_cell *
35: grid_view_peek_cell(struct grid *gd, u_int px, u_int py)
36: {
37: return (grid_peek_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
38: }
39:
40: /* Get cell for writing. */
41: struct grid_cell *
42: grid_view_get_cell(struct grid *gd, u_int px, u_int py)
43: {
44: return (grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
45: }
46:
47: /* Set cell. */
48: void
49: grid_view_set_cell(
50: struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
51: {
52: grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
53: }
54:
1.9 nicm 55: /* Clear into history. */
56: void
57: grid_view_clear_history(struct grid *gd)
58: {
59: struct grid_line *gl;
60: u_int yy, last;
61:
62: GRID_DEBUG(gd, "");
63:
64: /* Find the last used line. */
65: last = 0;
66: for (yy = 0; yy < gd->sy; yy++) {
67: gl = &gd->linedata[grid_view_y(gd, yy)];
1.11 ! nicm 68: if (gl->cellsize != 0)
1.9 nicm 69: last = yy + 1;
70: }
71: if (last == 0)
72: return;
73:
74: /* Scroll the lines into the history. */
1.10 nicm 75: for (yy = 0; yy < last; yy++) {
76: grid_collect_history(gd);
1.9 nicm 77: grid_scroll_history(gd);
1.10 nicm 78: }
1.1 nicm 79: }
80:
81: /* Clear area. */
82: void
83: grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny)
84: {
85: GRID_DEBUG(gd, "px=%u, py=%u, nx=%u, ny=%u", px, py, nx, ny);
86:
87: px = grid_view_x(gd, px);
88: py = grid_view_y(gd, py);
89:
90: grid_clear(gd, px, py, nx, ny);
91: }
92:
93: /* Scroll region up. */
94: void
95: grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
96: {
97: GRID_DEBUG(gd, "rupper=%u, rlower=%u", rupper, rlower);
98:
1.7 nicm 99: if (gd->flags & GRID_HISTORY) {
100: grid_collect_history(gd);
101: if (rupper == 0 && rlower == gd->sy - 1)
102: grid_scroll_history(gd);
103: else {
104: rupper = grid_view_y(gd, rupper);
105: rlower = grid_view_y(gd, rlower);
106: grid_scroll_history_region(gd, rupper, rlower);
107: }
108: } else {
109: rupper = grid_view_y(gd, rupper);
110: rlower = grid_view_y(gd, rlower);
111: grid_move_lines(gd, rupper, rupper + 1, rlower - rupper);
1.1 nicm 112: }
113: }
114:
115: /* Scroll region down. */
116: void
117: grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower)
118: {
119: GRID_DEBUG(gd, "rupper=%u, rlower=%u", rupper, rlower);
120:
121: rupper = grid_view_y(gd, rupper);
122: rlower = grid_view_y(gd, rlower);
123:
124: grid_move_lines(gd, rupper + 1, rupper, rlower - rupper);
125: }
126:
127: /* Insert lines. */
128: void
129: grid_view_insert_lines(struct grid *gd, u_int py, u_int ny)
130: {
131: u_int sy;
132:
133: GRID_DEBUG(gd, "py=%u, ny=%u", py, ny);
134:
135: py = grid_view_y(gd, py);
136:
137: sy = grid_view_y(gd, gd->sy);
138:
139: grid_move_lines(gd, py + ny, py, sy - py - ny);
140: }
141:
142: /* Insert lines in region. */
143: void
1.4 nicm 144: grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny)
1.1 nicm 145: {
1.5 nicm 146: u_int ny2;
147:
1.4 nicm 148: GRID_DEBUG(gd, "rlower=%u, py=%u, ny=%u", rlower, py, ny);
1.1 nicm 149:
150: rlower = grid_view_y(gd, rlower);
151:
152: py = grid_view_y(gd, py);
153:
1.5 nicm 154: ny2 = rlower + 1 - py - ny;
155: grid_move_lines(gd, rlower + 1 - ny2, py, ny2);
1.8 nicm 156: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
1.1 nicm 157: }
158:
159: /* Delete lines. */
160: void
161: grid_view_delete_lines(struct grid *gd, u_int py, u_int ny)
162: {
163: u_int sy;
164:
165: GRID_DEBUG(gd, "py=%u, ny=%u", py, ny);
166:
167: py = grid_view_y(gd, py);
168:
169: sy = grid_view_y(gd, gd->sy);
170:
171: grid_move_lines(gd, py, py + ny, sy - py - ny);
1.8 nicm 172: grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny));
1.1 nicm 173: }
174:
175: /* Delete lines inside scroll region. */
176: void
1.4 nicm 177: grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny)
1.1 nicm 178: {
1.5 nicm 179: u_int ny2;
180:
1.4 nicm 181: GRID_DEBUG(gd, "rlower=%u, py=%u, ny=%u", rlower, py, ny);
1.1 nicm 182:
183: rlower = grid_view_y(gd, rlower);
184:
185: py = grid_view_y(gd, py);
186:
1.5 nicm 187: ny2 = rlower + 1 - py - ny;
188: grid_move_lines(gd, py, py + ny, ny2);
1.8 nicm 189: grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
1.1 nicm 190: }
191:
192: /* Insert characters. */
193: void
194: grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx)
195: {
196: u_int sx;
197:
198: GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
199:
200: px = grid_view_x(gd, px);
201: py = grid_view_y(gd, py);
202:
203: sx = grid_view_x(gd, gd->sx);
204:
205: if (px == sx - 1)
206: grid_clear(gd, px, py, 1, 1);
207: else
1.3 nicm 208: grid_move_cells(gd, px + nx, px, py, sx - px - nx);
1.1 nicm 209: }
210:
211: /* Delete characters. */
212: void
213: grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx)
214: {
215: u_int sx;
216:
217: GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
218:
219: px = grid_view_x(gd, px);
220: py = grid_view_y(gd, py);
221:
222: sx = grid_view_x(gd, gd->sx);
223:
1.3 nicm 224: grid_move_cells(gd, px, px + nx, py, sx - px - nx);
225: grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1);
1.2 nicm 226: }
227:
228: /* Convert cells into a string. */
229: char *
230: grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
231: {
232: GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
233:
234: px = grid_view_x(gd, px);
235: py = grid_view_y(gd, py);
236:
237: return (grid_string_cells(gd, px, py, nx));
1.1 nicm 238: }
![[BACK]](/icons/back.gif){kind=icon}
Return to grid-view.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux