Annotation of src/usr.bin/tmux/window-more.c, Revision 1.2
1.2 ! nicm 1: /* $OpenBSD: window-more.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 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: struct screen *window_more_init(struct window_pane *);
26: void window_more_free(struct window_pane *);
27: void window_more_resize(struct window_pane *, u_int, u_int);
28: void window_more_key(struct window_pane *, struct client *, int);
29:
30: void window_more_redraw_screen(struct window_pane *);
31: void window_more_write_line(
32: struct window_pane *, struct screen_write_ctx *, u_int);
33:
34: void window_more_scroll_up(struct window_pane *);
35: void window_more_scroll_down(struct window_pane *);
36:
37: const struct window_mode window_more_mode = {
38: window_more_init,
39: window_more_free,
40: window_more_resize,
41: window_more_key,
42: NULL,
43: NULL,
44: };
45:
46: struct window_more_mode_data {
47: struct screen screen;
48:
49: struct mode_key_data mdata;
50:
51: ARRAY_DECL(, char *) list;
52: u_int top;
53: };
54:
55: void
56: window_more_vadd(struct window_pane *wp, const char *fmt, va_list ap)
57: {
58: struct window_more_mode_data *data = wp->modedata;
59: struct screen *s = &data->screen;
60: struct screen_write_ctx ctx;
61: char *msg;
62: u_int size;
63:
64: xvasprintf(&msg, fmt, ap);
65: ARRAY_ADD(&data->list, msg);
66:
67: screen_write_start(&ctx, wp, NULL);
68: size = ARRAY_LENGTH(&data->list) - 1;
69: if (size >= data->top && size <= data->top + screen_size_y(s) - 1) {
70: window_more_write_line(wp, &ctx, size - data->top);
71: if (size != data->top)
72: window_more_write_line(wp, &ctx, 0);
73: } else
74: window_more_write_line(wp, &ctx, 0);
75: screen_write_stop(&ctx);
76: }
77:
78: void printflike2
79: window_more_add(struct window_pane *wp, const char *fmt, ...)
80: {
81: va_list ap;
82:
83: va_start(ap, fmt);
84: window_more_vadd(wp, fmt, ap);
85: va_end(ap);
86: }
87:
88: struct screen *
89: window_more_init(struct window_pane *wp)
90: {
91: struct window_more_mode_data *data;
92: struct screen *s;
93:
94: wp->modedata = data = xmalloc(sizeof *data);
95: ARRAY_INIT(&data->list);
96: data->top = 0;
97:
98: s = &data->screen;
99: screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
100: s->mode &= ~MODE_CURSOR;
101:
102: mode_key_init(&data->mdata,
103: options_get_number(&wp->window->options, "mode-keys"), 0);
104:
105: return (s);
106: }
107:
108: void
109: window_more_free(struct window_pane *wp)
110: {
111: struct window_more_mode_data *data = wp->modedata;
112: u_int i;
113:
114: mode_key_free(&data->mdata);
115:
116: for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
117: xfree(ARRAY_ITEM(&data->list, i));
118: ARRAY_FREE(&data->list);
119:
120: screen_free(&data->screen);
121: xfree(data);
122: }
123:
124: void
125: window_more_resize(struct window_pane *wp, u_int sx, u_int sy)
126: {
127: struct window_more_mode_data *data = wp->modedata;
128: struct screen *s = &data->screen;
129:
130: screen_resize(s, sx, sy);
131: window_more_redraw_screen(wp);
132: }
133:
134: void
135: window_more_key(struct window_pane *wp, unused struct client *c, int key)
136: {
137: struct window_more_mode_data *data = wp->modedata;
138: struct screen *s = &data->screen;
139:
140: switch (mode_key_lookup(&data->mdata, key)) {
141: case MODEKEYCMD_QUIT:
142: window_pane_reset_mode(wp);
143: break;
144: case MODEKEYCMD_UP:
145: window_more_scroll_up(wp);
146: break;
147: case MODEKEYCMD_DOWN:
148: window_more_scroll_down(wp);
149: break;
150: case MODEKEYCMD_PREVIOUSPAGE:
151: if (data->top < screen_size_y(s))
152: data->top = 0;
153: else
154: data->top -= screen_size_y(s);
155: window_more_redraw_screen(wp);
156: break;
157: case MODEKEYCMD_NEXTPAGE:
158: if (data->top + screen_size_y(s) > ARRAY_LENGTH(&data->list))
159: data->top = ARRAY_LENGTH(&data->list);
160: else
161: data->top += screen_size_y(s);
162: window_more_redraw_screen(wp);
163: break;
164: default:
165: break;
166: }
167: }
168:
169: void
170: window_more_write_line(
171: struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
172: {
173: struct window_more_mode_data *data = wp->modedata;
174: struct screen *s = &data->screen;
175: struct grid_cell gc;
176: char *msg, hdr[32];
177: size_t size;
1.2 ! nicm 178: int utf8flag;
1.1 nicm 179:
1.2 ! nicm 180: utf8flag = options_get_number(&wp->window->options, "utf8");
1.1 nicm 181: memcpy(&gc, &grid_default_cell, sizeof gc);
182:
183: if (py == 0) {
184: size = xsnprintf(hdr, sizeof hdr,
185: "[%u/%u]", data->top, ARRAY_LENGTH(&data->list));
186: screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
187: gc.bg = options_get_number(&wp->window->options, "mode-fg");
188: gc.fg = options_get_number(&wp->window->options, "mode-bg");
189: gc.attr |= options_get_number(&wp->window->options, "mode-attr");
190: screen_write_puts(ctx, &gc, "%s", hdr);
191: memcpy(&gc, &grid_default_cell, sizeof gc);
192: } else
193: size = 0;
194:
195: screen_write_cursormove(ctx, 0, py);
196: if (data->top + py < ARRAY_LENGTH(&data->list)) {
197: msg = ARRAY_ITEM(&data->list, data->top + py);
1.2 ! nicm 198: screen_write_nputs(
! 199: ctx, screen_size_x(s) - 1 - size, &gc, utf8flag, "%s", msg);
1.1 nicm 200: }
201: while (s->cx < screen_size_x(s) - size)
202: screen_write_putc(ctx, &gc, ' ');
203: }
204:
205: void
206: window_more_redraw_screen(struct window_pane *wp)
207: {
208: struct window_more_mode_data *data = wp->modedata;
209: struct screen *s = &data->screen;
210: struct screen_write_ctx ctx;
211: u_int i;
212:
213: screen_write_start(&ctx, wp, NULL);
214: for (i = 0; i < screen_size_y(s); i++)
215: window_more_write_line(wp, &ctx, i);
216: screen_write_stop(&ctx);
217: }
218:
219: void
220: window_more_scroll_up(struct window_pane *wp)
221: {
222: struct window_more_mode_data *data = wp->modedata;
223: struct screen_write_ctx ctx;
224:
225: if (data->top == 0)
226: return;
227: data->top--;
228:
229: screen_write_start(&ctx, wp, NULL);
230: screen_write_cursormove(&ctx, 0, 0);
231: screen_write_insertline(&ctx, 1);
232: window_more_write_line(wp, &ctx, 0);
233: window_more_write_line(wp, &ctx, 1);
234: screen_write_stop(&ctx);
235: }
236:
237: void
238: window_more_scroll_down(struct window_pane *wp)
239: {
240: struct window_more_mode_data *data = wp->modedata;
241: struct screen *s = &data->screen;
242: struct screen_write_ctx ctx;
243:
244: if (data->top >= ARRAY_LENGTH(&data->list))
245: return;
246: data->top++;
247:
248: screen_write_start(&ctx, wp, NULL);
249: screen_write_cursormove(&ctx, 0, 0);
250: screen_write_deleteline(&ctx, 1);
251: window_more_write_line(wp, &ctx, screen_size_y(s) - 1);
252: window_more_write_line(wp, &ctx, 0);
253: screen_write_stop(&ctx);
254: }
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