tmux  3.2a
About: tmux is a terminal multiplexer that lets you switch easily between several programs in one terminal.
  Fossies Dox: tmux-3.2a.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

grid-view.c
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1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@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++) {
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) {
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, py + ny - (sy - 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, px + nx - (sx - 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, 0, 0));
235 }
void grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
Definition: grid-view.c:95
void grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
Definition: grid-view.c:214
void grid_view_delete_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
Definition: grid-view.c:167
void grid_view_set_cell(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
Definition: grid-view.c:42
char * grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
Definition: grid-view.c:229
void grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower, u_int bg)
Definition: grid-view.c:127
void grid_view_set_padding(struct grid *gd, u_int px, u_int py)
Definition: grid-view.c:50
void grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower, u_int bg)
Definition: grid-view.c:106
#define grid_view_x(gd, x)
Definition: grid-view.c:30
void grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny, u_int bg)
Definition: grid-view.c:181
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)
Definition: grid-view.c:57
void grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny, u_int bg)
Definition: grid-view.c:151
void grid_view_insert_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
Definition: grid-view.c:138
void grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
Definition: grid-view.c:35
#define grid_view_y(gd, y)
Definition: grid-view.c:31
void grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
Definition: grid-view.c:197
void grid_view_clear_history(struct grid *gd, u_int bg)
Definition: grid-view.c:66
void grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc, const char *s, size_t slen)
Definition: grid.c:570
void grid_scroll_history_region(struct grid *gd, u_int upper, u_int lower, u_int bg)
Definition: grid.c:420
void grid_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
Definition: grid.c:529
char * grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx, struct grid_cell **lastgc, int with_codes, int escape_c0, int trim)
Definition: grid.c:954
struct grid_line * grid_get_line(struct grid *gd, u_int line)
Definition: grid.c:181
void grid_set_cell(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
Definition: grid.c:540
void grid_scroll_history(struct grid *gd, u_int bg)
Definition: grid.c:391
void grid_move_cells(struct grid *gd, u_int dx, u_int px, u_int py, u_int nx, u_int bg)
Definition: grid.c:703
void grid_set_padding(struct grid *gd, u_int px, u_int py)
Definition: grid.c:563
void grid_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
Definition: grid.c:599
void grid_collect_history(struct grid *gd)
Definition: grid.c:349
void grid_move_lines(struct grid *gd, u_int dy, u_int py, u_int ny, u_int bg)
Definition: grid.c:661
u_int cellused
Definition: tmux.h:723
Definition: tmux.h:734
u_int sy
Definition: tmux.h:739
u_int hscrolled
Definition: tmux.h:741
int flags
Definition: tmux.h:735
u_int sx
Definition: tmux.h:738
#define GRID_HISTORY
Definition: tmux.h:736