1 /* $OpenBSD: cmd-resize-pane.c,v 1.37 2019/05/03 18:42:40 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2009 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 <stdlib.h> 22 23 #include "tmux.h" 24 25 /* 26 * Increase or decrease pane size. 27 */ 28 29 static enum cmd_retval cmd_resize_pane_exec(struct cmd *, struct cmdq_item *); 30 31 static void cmd_resize_pane_mouse_update(struct client *, 32 struct mouse_event *); 33 34 const struct cmd_entry cmd_resize_pane_entry = { 35 .name = "resize-pane", 36 .alias = "resizep", 37 38 .args = { "DLMRt:Ux:y:Z", 0, 1 }, 39 .usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " " 40 "[adjustment]", 41 42 .target = { 't', CMD_FIND_PANE, 0 }, 43 44 .flags = CMD_AFTERHOOK, 45 .exec = cmd_resize_pane_exec 46 }; 47 48 static enum cmd_retval 49 cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item) 50 { 51 struct args *args = self->args; 52 struct cmdq_shared *shared = item->shared; 53 struct window_pane *wp = item->target.wp; 54 struct winlink *wl = item->target.wl; 55 struct window *w = wl->window; 56 struct client *c = item->client; 57 struct session *s = item->target.s; 58 const char *errstr; 59 char *cause; 60 u_int adjust; 61 int x, y; 62 63 if (args_has(args, 'M')) { 64 if (cmd_mouse_window(&shared->mouse, &s) == NULL) 65 return (CMD_RETURN_NORMAL); 66 if (c == NULL || c->session != s) 67 return (CMD_RETURN_NORMAL); 68 c->tty.mouse_drag_update = cmd_resize_pane_mouse_update; 69 cmd_resize_pane_mouse_update(c, &shared->mouse); 70 return (CMD_RETURN_NORMAL); 71 } 72 73 if (args_has(args, 'Z')) { 74 if (w->flags & WINDOW_ZOOMED) 75 window_unzoom(w); 76 else 77 window_zoom(wp); 78 server_redraw_window(w); 79 server_status_window(w); 80 return (CMD_RETURN_NORMAL); 81 } 82 server_unzoom_window(w); 83 84 if (args->argc == 0) 85 adjust = 1; 86 else { 87 adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr); 88 if (errstr != NULL) { 89 cmdq_error(item, "adjustment %s", errstr); 90 return (CMD_RETURN_ERROR); 91 } 92 } 93 94 if (args_has(args, 'x')) { 95 x = args_strtonum(args, 'x', PANE_MINIMUM, INT_MAX, &cause); 96 if (cause != NULL) { 97 cmdq_error(item, "width %s", cause); 98 free(cause); 99 return (CMD_RETURN_ERROR); 100 } 101 layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x); 102 } 103 if (args_has(args, 'y')) { 104 y = args_strtonum(args, 'y', PANE_MINIMUM, INT_MAX, &cause); 105 if (cause != NULL) { 106 cmdq_error(item, "height %s", cause); 107 free(cause); 108 return (CMD_RETURN_ERROR); 109 } 110 layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y); 111 } 112 113 if (args_has(args, 'L')) 114 layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1); 115 else if (args_has(args, 'R')) 116 layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1); 117 else if (args_has(args, 'U')) 118 layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1); 119 else if (args_has(args, 'D')) 120 layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1); 121 server_redraw_window(wl->window); 122 123 return (CMD_RETURN_NORMAL); 124 } 125 126 static void 127 cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m) 128 { 129 struct winlink *wl; 130 struct window *w; 131 u_int y, ly, x, lx; 132 static const int offsets[][2] = { 133 { 0, 0 }, { 0, 1 }, { 1, 0 }, { 0, -1 }, { -1, 0 }, 134 }; 135 struct layout_cell *cells[nitems(offsets)], *lc; 136 u_int ncells = 0, i, j, resizes = 0; 137 enum layout_type type; 138 139 wl = cmd_mouse_window(m, NULL); 140 if (wl == NULL) { 141 c->tty.mouse_drag_update = NULL; 142 return; 143 } 144 w = wl->window; 145 146 y = m->y + m->oy; x = m->x + m->ox; 147 if (m->statusat == 0 && y > 0) 148 y--; 149 else if (m->statusat > 0 && y >= (u_int)m->statusat) 150 y = m->statusat - 1; 151 ly = m->ly + m->oy; lx = m->lx + m->ox; 152 if (m->statusat == 0 && ly > 0) 153 ly--; 154 else if (m->statusat > 0 && ly >= (u_int)m->statusat) 155 ly = m->statusat - 1; 156 157 for (i = 0; i < nitems(cells); i++) { 158 lc = layout_search_by_border(w->layout_root, lx + offsets[i][0], 159 ly + offsets[i][1]); 160 if (lc == NULL) 161 continue; 162 163 for (j = 0; j < ncells; j++) { 164 if (cells[j] == lc) { 165 lc = NULL; 166 break; 167 } 168 } 169 if (lc == NULL) 170 continue; 171 172 cells[ncells] = lc; 173 ncells++; 174 } 175 if (ncells == 0) 176 return; 177 178 for (i = 0; i < ncells; i++) { 179 type = cells[i]->parent->type; 180 if (y != ly && type == LAYOUT_TOPBOTTOM) { 181 layout_resize_layout(w, cells[i], type, y - ly, 0); 182 resizes++; 183 } else if (x != lx && type == LAYOUT_LEFTRIGHT) { 184 layout_resize_layout(w, cells[i], type, x - lx, 0); 185 resizes++; 186 } 187 } 188 if (resizes != 0) 189 server_redraw_window(w); 190 } 191