src/filemanager/info.c

   1 /*
   2    Panel managing.
   3
   4    Copyright (C) 1994, 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   5    2005, 2007, 2011
   6    The Free Software Foundation, Inc.
   7
   8    This file is part of the Midnight Commander.
   9
  10    The Midnight Commander is free software: you can redistribute it
  11    and/or modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation, either version 3 of the License,
  13    or (at your option) any later version.
  14
  15    The Midnight Commander is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 /** \file info.c
  25  *  \brief Source: panel managing
  26  */
  27
  28 #include <config.h>
  29
  30 #include <stdio.h>
  31 #include <sys/stat.h>
  32 #include <inttypes.h>           /* PRIuMAX */
  33
  34 #include "lib/global.h"
  35 #include "lib/unixcompat.h"
  36 #include "lib/tty/tty.h"
  37 #include "lib/tty/key.h"        /* is_idle() */
  38 #include "lib/tty/mouse.h"      /* Gpm_Event */
  39 #include "lib/skin.h"
  40 #include "lib/strutil.h"
  41 #include "lib/timefmt.h"        /* file_date() */
  42 #include "lib/util.h"
  43 #include "lib/widget.h"
  44
  45 #include "src/setup.h"          /* panels_options */
  46
  47 #include "midnight.h"           /* the_menubar */
  48 #include "layout.h"
  49 #include "mountlist.h"
  50 #include "info.h"
  51
  52 /*** global variables ****************************************************************************/
  53
  54 /*** file scope macro definitions ****************************************************************/
  55
  56 #ifndef VERSION
  57 #define VERSION "undefined"
  58 #endif
  59
  60 /*** file scope type declarations ****************************************************************/
  61
  62 struct WInfo
  63 {
  64     Widget widget;
  65     int ready;
  66 };
  67
  68 /*** file scope variables ************************************************************************/
  69
  70 static struct my_statfs myfs_stats;
  71
  72 /*** file scope functions ************************************************************************/
  73 /* --------------------------------------------------------------------------------------------- */
  74
  75 static void
  76 info_box (WInfo *info)
  77 {
  78     Widget *w = WIDGET (info);
  79
  80     const char *title = _("Information");
  81     const int len = str_term_width1 (title);
  82
  83     tty_set_normal_attrs ();
  84     tty_setcolor (NORMAL_COLOR);
  85     widget_erase (w);
  86     draw_box (w->owner, w->y, w->x, w->lines, w->cols, FALSE);
  87
  88     widget_move (w, 0, (w->cols - len - 2) / 2);
  89     tty_printf (" %s ", title);
  90
  91     widget_move (w, 2, 0);
  92     tty_print_alt_char (ACS_LTEE, FALSE);
  93     widget_move (w, 2, w->cols - 1);
  94     tty_print_alt_char (ACS_RTEE, FALSE);
  95     tty_draw_hline (w->y + 2, w->x + 1, ACS_HLINE, w->cols - 2);
  96 }
  97
  98 /* --------------------------------------------------------------------------------------------- */
  99
 100 static void
 101 info_show_info (WInfo *info)
 102 {
 103     Widget *w = WIDGET (info);
 104     static int i18n_adjust = 0;
 105     static const char *file_label;
 106     GString *buff;
 107     struct stat st;
 108
 109     if (!is_idle ())
 110         return;
 111
 112     info_box (info);
 113
 114     tty_setcolor (MARKED_COLOR);
 115     widget_move (w, 1, 3);
 116     tty_printf (_("Midnight Commander %s"), VERSION);
 117
 118     if (!info->ready)
 119         return;
 120
 121     if (get_current_type () != view_listing)
 122         return;
 123
 124     {
 125         char *cwd_str;
 126
 127         cwd_str = vfs_path_to_str (current_panel->cwd_vpath);
 128         my_statfs (&myfs_stats, cwd_str);
 129         g_free (cwd_str);
 130     }
 131
 132     st = current_panel->dir.list[current_panel->selected].st;
 133
 134     /* Print only lines which fit */
 135
 136     if (i18n_adjust == 0)
 137     {
 138         /* This printf pattern string is used as a reference for size */
 139         file_label = _("File: %s");
 140         i18n_adjust = str_term_width1 (file_label) + 2;
 141     }
 142
 143     tty_setcolor (NORMAL_COLOR);
 144
 145     buff = g_string_new ("");
 146
 147     switch (w->lines - 2)
 148     {
 149         /* Note: all cases are fall-throughs */
 150
 151     default:
 152
 153     case 16:
 154         widget_move (w, 16, 3);
 155         if (myfs_stats.nfree == 0 && myfs_stats.nodes == 0)
 156             tty_print_string (_("No node information"));
 157         else
 158             tty_printf ("%s %" PRIuMAX "/%" PRIuMAX " (%d%%)",
 159                         _("Free nodes:"),
 160                         myfs_stats.nfree, myfs_stats.nodes,
 161                         myfs_stats.nodes == 0 ? 0 :
 162                         (int) (100 * (long double) myfs_stats.nfree / myfs_stats.nodes));
 163
 164     case 15:
 165         widget_move (w, 15, 3);
 166         if (myfs_stats.avail == 0 && myfs_stats.total == 0)
 167             tty_print_string (_("No space information"));
 168         else
 169         {
 170             char buffer1[6], buffer2[6];
 171
 172             size_trunc_len (buffer1, 5, myfs_stats.avail, 1, panels_options.kilobyte_si);
 173             size_trunc_len (buffer2, 5, myfs_stats.total, 1, panels_options.kilobyte_si);
 174             tty_printf (_("Free space: %s/%s (%d%%)"), buffer1, buffer2,
 175                         myfs_stats.total == 0 ? 0 :
 176                         (int) (100 * (long double) myfs_stats.avail / myfs_stats.total));
 177         }
 178
 179     case 14:
 180         widget_move (w, 14, 3);
 181         tty_printf (_("Type:      %s"),
 182                     myfs_stats.typename ? myfs_stats.typename : _("non-local vfs"));
 183         if (myfs_stats.type != 0xffff && myfs_stats.type != -1)
 184             tty_printf (" (%Xh)", myfs_stats.type);
 185
 186     case 13:
 187         widget_move (w, 13, 3);
 188         str_printf (buff, _("Device:    %s"),
 189                     str_trunc (myfs_stats.device, w->cols - i18n_adjust));
 190         tty_print_string (buff->str);
 191         g_string_set_size (buff, 0);
 192     case 12:
 193         widget_move (w, 12, 3);
 194         str_printf (buff, _("Filesystem: %s"),
 195                     str_trunc (myfs_stats.mpoint, w->cols - i18n_adjust));
 196         tty_print_string (buff->str);
 197         g_string_set_size (buff, 0);
 198     case 11:
 199         widget_move (w, 11, 3);
 200         str_printf (buff, _("Accessed:  %s"), file_date (st.st_atime));
 201         tty_print_string (buff->str);
 202         g_string_set_size (buff, 0);
 203     case 10:
 204         widget_move (w, 10, 3);
 205         str_printf (buff, _("Modified:  %s"), file_date (st.st_mtime));
 206         tty_print_string (buff->str);
 207         g_string_set_size (buff, 0);
 208     case 9:
 209         widget_move (w, 9, 3);
 210         /* The field st_ctime is changed by writing or by setting inode
 211            information (i.e., owner, group, link count, mode, etc.).  */
 212         /* TRANSLATORS: Time of last status change as in stat(2) man. */
 213         str_printf (buff, _("Changed:   %s"), file_date (st.st_ctime));
 214         tty_print_string (buff->str);
 215         g_string_set_size (buff, 0);
 216
 217     case 8:
 218         widget_move (w, 8, 3);
 219 #ifdef HAVE_STRUCT_STAT_ST_RDEV
 220         if (S_ISCHR (st.st_mode) || S_ISBLK (st.st_mode))
 221             tty_printf (_("Dev. type: major %lu, minor %lu"),
 222                         (unsigned long) major (st.st_rdev), (unsigned long) minor (st.st_rdev));
 223         else
 224 #endif
 225         {
 226             char buffer[10];
 227             size_trunc_len (buffer, 9, st.st_size, 0, panels_options.kilobyte_si);
 228             tty_printf (_("Size:      %s"), buffer);
 229 #ifdef HAVE_STRUCT_STAT_ST_BLOCKS
 230             tty_printf (ngettext (" (%ld block)", " (%ld blocks)",
 231                                   (unsigned long) st.st_blocks), (unsigned long) st.st_blocks);
 232 #endif
 233         }
 234
 235     case 7:
 236         widget_move (w, 7, 3);
 237         tty_printf (_("Owner:     %s/%s"), get_owner (st.st_uid), get_group (st.st_gid));
 238
 239     case 6:
 240         widget_move (w, 6, 3);
 241         tty_printf (_("Links:     %d"), (int) st.st_nlink);
 242
 243     case 5:
 244         widget_move (w, 5, 3);
 245         tty_printf (_("Mode:      %s (%04o)"),
 246                     string_perm (st.st_mode), (unsigned) st.st_mode & 07777);
 247
 248     case 4:
 249         widget_move (w, 4, 3);
 250         tty_printf (_("Location:  %Xh:%Xh"), (int) st.st_dev, (int) st.st_ino);
 251
 252     case 3:
 253         {
 254             const char *fname;
 255
 256             widget_move (w, 3, 2);
 257             fname = current_panel->dir.list[current_panel->selected].fname;
 258             str_printf (buff, file_label, str_trunc (fname, w->cols - i18n_adjust));
 259             tty_print_string (buff->str);
 260         }
 261
 262     case 2:
 263     case 1:
 264     case 0:
 265         ;
 266     }                           /* switch */
 267     g_string_free (buff, TRUE);
 268 }
 269
 270 /* --------------------------------------------------------------------------------------------- */
 271
 272 static void
 273 info_hook (void *data)
 274 {
 275     struct WInfo *info = (struct WInfo *) data;
 276     Widget *other_widget;
 277
 278     other_widget = get_panel_widget (get_current_index ());
 279     if (!other_widget)
 280         return;
 281     if (dlg_overlap (WIDGET (info), other_widget))
 282         return;
 283
 284     info->ready = 1;
 285     info_show_info (info);
 286 }
 287
 288 /* --------------------------------------------------------------------------------------------- */
 289
 290 static cb_ret_t
 291 info_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 292 {
 293     struct WInfo *info = (struct WInfo *) w;
 294
 295     switch (msg)
 296     {
 297     case MSG_INIT:
 298         init_my_statfs ();
 299         add_hook (&select_file_hook, info_hook, info);
 300         info->ready = 0;
 301         return MSG_HANDLED;
 302
 303     case MSG_DRAW:
 304         info_hook (info);
 305         return MSG_HANDLED;
 306
 307     case MSG_FOCUS:
 308         return MSG_NOT_HANDLED;
 309
 310     case MSG_DESTROY:
 311         delete_hook (&select_file_hook, info_hook);
 312         free_my_statfs ();
 313         return MSG_HANDLED;
 314
 315     default:
 316         return widget_default_callback (w, sender, msg, parm, data);
 317     }
 318 }
 319
 320 /* --------------------------------------------------------------------------------------------- */
 321 /*** public functions ****************************************************************************/
 322 /* --------------------------------------------------------------------------------------------- */
 323
 324 WInfo *
 325 info_new (int y, int x, int lines, int cols)
 326 {
 327     WInfo *info;
 328     Widget *w;
 329
 330     info = g_new (struct WInfo, 1);
 331     w = WIDGET (info);
 332     init_widget (w, y, x, lines, cols, info_callback, NULL);
 333     /* We do not want the cursor */
 334     widget_want_cursor (w, FALSE);
 335
 336     return info;
 337 }
 338
 339 /* --------------------------------------------------------------------------------------------- */