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1.2 ! nicm 1: /* $OpenBSD: resize.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: /*
26: * Recalculate window and session sizes.
27: *
28: * Every session has the size of the smallest client it is attached to and
29: * every window the size of the smallest session it is attached to.
30: *
31: * So, when a client is resized or a session attached to or detached from a
32: * client, the window sizes must be recalculated. For each session, find the
33: * smallest client it is attached to, and resize it to that size. Then for
34: * every window, find the smallest session it is attached to, resize it to that
35: * size and clear and redraw every client with it as the current window.
36: *
37: * This is quite inefficient - better/additional data structures are needed
38: * to make it better.
39: *
40: * As a side effect, this function updates the SESSION_UNATTACHED flag. This
41: * flag is necessary to make sure unattached sessions do not limit the size of
42: * windows that are attached both to them and to other (attached) sessions.
43: */
44:
45: void
46: recalculate_sizes(void)
47: {
48: struct session *s;
49: struct client *c;
50: struct window *w;
1.2 ! nicm 51: struct window_pane *wp;
1.1 nicm 52: u_int i, j, ssx, ssy, has, limit;
53: int flag;
54:
55: for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
56: s = ARRAY_ITEM(&sessions, i);
57: if (s == NULL)
58: continue;
59:
60: ssx = ssy = UINT_MAX;
61: for (j = 0; j < ARRAY_LENGTH(&clients); j++) {
62: c = ARRAY_ITEM(&clients, j);
63: if (c == NULL)
64: continue;
65: if (c->session == s) {
66: if (c->tty.sx < ssx)
67: ssx = c->tty.sx;
68: if (c->tty.sy < ssy)
69: ssy = c->tty.sy;
70: }
71: }
72: if (ssx == UINT_MAX || ssy == UINT_MAX) {
73: s->flags |= SESSION_UNATTACHED;
74: continue;
75: }
76: s->flags &= ~SESSION_UNATTACHED;
77:
78: if (options_get_number(&s->options, "status")) {
79: if (ssy == 0)
80: ssy = 1;
81: else
82: ssy--;
83: }
84: if (s->sx == ssx && s->sy == ssy)
85: continue;
86:
87: log_debug(
88: "session size %u,%u (was %u,%u)", ssx, ssy, s->sx, s->sy);
89:
90: s->sx = ssx;
91: s->sy = ssy;
92: }
93:
94: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
95: w = ARRAY_ITEM(&windows, i);
96: if (w == NULL)
97: continue;
98: flag = options_get_number(&w->options, "aggressive-resize");
99:
100: ssx = ssy = UINT_MAX;
101: for (j = 0; j < ARRAY_LENGTH(&sessions); j++) {
102: s = ARRAY_ITEM(&sessions, j);
103: if (s == NULL || s->flags & SESSION_UNATTACHED)
104: continue;
105: if (flag)
106: has = s->curw->window == w;
107: else
108: has = session_has(s, w);
109: if (has) {
110: if (s->sx < ssx)
111: ssx = s->sx;
112: if (s->sy < ssy)
113: ssy = s->sy;
114: }
115: }
116: if (ssx == UINT_MAX || ssy == UINT_MAX) {
117: w->flags |= WINDOW_HIDDEN;
118: continue;
119: }
120: w->flags &= ~WINDOW_HIDDEN;
121:
122: limit = options_get_number(&w->options, "force-width");
123: if (limit != 0 && ssx > limit)
124: ssx = limit;
125: limit = options_get_number(&w->options, "force-height");
126: if (limit != 0 && ssy > limit)
127: ssy = limit;
128:
129: if (w->sx == ssx && w->sy == ssy)
130: continue;
131:
132: log_debug(
133: "window size %u,%u (was %u,%u)", ssx, ssy, w->sx, w->sy);
134:
135: window_resize(w, ssx, ssy);
1.2 ! nicm 136:
! 137: /*
! 138: * If the current pane is now not visible, move to the next
! 139: * that is.
! 140: */
! 141: wp = w->active;
! 142: while (!window_pane_visible(w->active)) {
! 143: w->active = TAILQ_PREV(w->active, window_panes, entry);
! 144: if (w->active == NULL)
! 145: w->active = TAILQ_LAST(&w->panes, window_panes);
! 146: if (w->active == wp)
! 147: break;
! 148: }
! 149:
1.1 nicm 150: server_redraw_window(w);
151: layout_refresh(w, 0);
152: }
153: }