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 (struct WInfo *info)
  77 {
  78     const char *title = _("Information");
  79     const int len = str_term_width1 (title);
  80
  81     tty_set_normal_attrs ();
  82     tty_setcolor (NORMAL_COLOR);
  83     widget_erase (&info->widget);
  84     draw_box (info->widget.owner, info->widget.y, info->widget.x,
  85               info->widget.lines, info->widget.cols, FALSE);
  86
  87     widget_move (&info->widget, 0, (info->widget.cols - len - 2) / 2);
  88     tty_printf (" %s ", title);
  89
  90     widget_move (&info->widget, 2, 0);
  91     tty_print_alt_char (ACS_LTEE, FALSE);
  92     widget_move (&info->widget, 2, info->widget.cols - 1);
  93     tty_print_alt_char (ACS_RTEE, FALSE);
  94     tty_draw_hline (info->widget.y + 2, info->widget.x + 1, ACS_HLINE, info->widget.cols - 2);
  95 }
  96
  97 /* --------------------------------------------------------------------------------------------- */
  98
  99 static void
 100 info_show_info (struct WInfo *info)
 101 {
 102     static int i18n_adjust = 0;
 103     static const char *file_label;
 104     GString *buff;
 105     struct stat st;
 106
 107     if (!is_idle ())
 108         return;
 109
 110     info_box (info);
 111
 112     tty_setcolor (MARKED_COLOR);
 113     widget_move (&info->widget, 1, 3);
 114     tty_printf (_("Midnight Commander %s"), VERSION);
 115
 116     if (!info->ready)
 117         return;
 118
 119     if (get_current_type () != view_listing)
 120         return;
 121
 122     my_statfs (&myfs_stats, current_panel->cwd);
 123     st = current_panel->dir.list[current_panel->selected].st;
 124
 125     /* Print only lines which fit */
 126
 127     if (i18n_adjust == 0)
 128     {
 129         /* This printf pattern string is used as a reference for size */
 130         file_label = _("File: %s");
 131         i18n_adjust = str_term_width1 (file_label) + 2;
 132     }
 133
 134     tty_setcolor (NORMAL_COLOR);
 135
 136     buff = g_string_new ("");
 137
 138     switch (info->widget.lines - 2)
 139     {
 140         /* Note: all cases are fall-throughs */
 141
 142     default:
 143
 144     case 16:
 145         widget_move (&info->widget, 16, 3);
 146         if (myfs_stats.nfree == 0 && myfs_stats.nodes == 0)
 147             tty_print_string (_("No node information"));
 148         else
 149             tty_printf ("%s %" PRIuMAX "/%" PRIuMAX " (%d%%)",
 150                         _("Free nodes:"),
 151                         myfs_stats.nfree, myfs_stats.nodes,
 152                         myfs_stats.nodes == 0 ? 0 :
 153                         (int) (100 * (long double) myfs_stats.nfree / myfs_stats.nodes));
 154
 155     case 15:
 156         widget_move (&info->widget, 15, 3);
 157         if (myfs_stats.avail == 0 && myfs_stats.total == 0)
 158             tty_print_string (_("No space information"));
 159         else
 160         {
 161             char buffer1[6], buffer2[6];
 162
 163             size_trunc_len (buffer1, 5, myfs_stats.avail, 1, panels_options.kilobyte_si);
 164             size_trunc_len (buffer2, 5, myfs_stats.total, 1, panels_options.kilobyte_si);
 165             tty_printf (_("Free space: %s/%s (%d%%)"), buffer1, buffer2,
 166                         myfs_stats.total == 0 ? 0 :
 167                         (int) (100 * (long double) myfs_stats.avail / myfs_stats.total));
 168         }
 169
 170     case 14:
 171         widget_move (&info->widget, 14, 3);
 172         tty_printf (_("Type:      %s"),
 173                     myfs_stats.typename ? myfs_stats.typename : _("non-local vfs"));
 174         if (myfs_stats.type != 0xffff && myfs_stats.type != -1)
 175             tty_printf (" (%Xh)", myfs_stats.type);
 176
 177     case 13:
 178         widget_move (&info->widget, 13, 3);
 179         str_printf (buff, _("Device:    %s"),
 180                     str_trunc (myfs_stats.device, info->widget.cols - i18n_adjust));
 181         tty_print_string (buff->str);
 182         g_string_set_size (buff, 0);
 183     case 12:
 184         widget_move (&info->widget, 12, 3);
 185         str_printf (buff, _("Filesystem: %s"),
 186                     str_trunc (myfs_stats.mpoint, info->widget.cols - i18n_adjust));
 187         tty_print_string (buff->str);
 188         g_string_set_size (buff, 0);
 189     case 11:
 190         widget_move (&info->widget, 11, 3);
 191         str_printf (buff, _("Accessed:  %s"), file_date (st.st_atime));
 192         tty_print_string (buff->str);
 193         g_string_set_size (buff, 0);
 194     case 10:
 195         widget_move (&info->widget, 10, 3);
 196         str_printf (buff, _("Modified:  %s"), file_date (st.st_mtime));
 197         tty_print_string (buff->str);
 198         g_string_set_size (buff, 0);
 199     case 9:
 200         widget_move (&info->widget, 9, 3);
 201         /* The field st_ctime is changed by writing or by setting inode
 202            information (i.e., owner, group, link count, mode, etc.).  */
 203         /* TRANSLATORS: Time of last status change as in stat(2) man. */
 204         str_printf (buff, _("Changed:   %s"), file_date (st.st_ctime));
 205         tty_print_string (buff->str);
 206         g_string_set_size (buff, 0);
 207
 208     case 8:
 209         widget_move (&info->widget, 8, 3);
 210 #ifdef HAVE_STRUCT_STAT_ST_RDEV
 211         if (S_ISCHR (st.st_mode) || S_ISBLK (st.st_mode))
 212             tty_printf (_("Dev. type: major %lu, minor %lu"),
 213                         (unsigned long) major (st.st_rdev), (unsigned long) minor (st.st_rdev));
 214         else
 215 #endif
 216         {
 217             char buffer[10];
 218             size_trunc_len (buffer, 9, st.st_size, 0, panels_options.kilobyte_si);
 219             tty_printf (_("Size:      %s"), buffer);
 220 #ifdef HAVE_STRUCT_STAT_ST_BLOCKS
 221             tty_printf (ngettext (" (%ld block)", " (%ld blocks)",
 222                                   (unsigned long) st.st_blocks), (unsigned long) st.st_blocks);
 223 #endif
 224         }
 225
 226     case 7:
 227         widget_move (&info->widget, 7, 3);
 228         tty_printf (_("Owner:     %s/%s"), get_owner (st.st_uid), get_group (st.st_gid));
 229
 230     case 6:
 231         widget_move (&info->widget, 6, 3);
 232         tty_printf (_("Links:     %d"), (int) st.st_nlink);
 233
 234     case 5:
 235         widget_move (&info->widget, 5, 3);
 236         tty_printf (_("Mode:      %s (%04o)"),
 237                     string_perm (st.st_mode), (unsigned) st.st_mode & 07777);
 238
 239     case 4:
 240         widget_move (&info->widget, 4, 3);
 241         tty_printf (_("Location:  %Xh:%Xh"), (int) st.st_dev, (int) st.st_ino);
 242
 243     case 3:
 244         {
 245             const char *fname;
 246
 247             widget_move (&info->widget, 3, 2);
 248             fname = current_panel->dir.list[current_panel->selected].fname;
 249             str_printf (buff, file_label, str_trunc (fname, info->widget.cols - i18n_adjust));
 250             tty_print_string (buff->str);
 251         }
 252
 253     case 2:
 254     case 1:
 255     case 0:
 256         ;
 257     }                           /* switch */
 258     g_string_free (buff, TRUE);
 259 }
 260
 261 /* --------------------------------------------------------------------------------------------- */
 262
 263 static void
 264 info_hook (void *data)
 265 {
 266     struct WInfo *info = (struct WInfo *) data;
 267     Widget *other_widget;
 268
 269     other_widget = get_panel_widget (get_current_index ());
 270     if (!other_widget)
 271         return;
 272     if (dlg_overlap (&info->widget, other_widget))
 273         return;
 274
 275     info->ready = 1;
 276     info_show_info (info);
 277 }
 278
 279 /* --------------------------------------------------------------------------------------------- */
 280
 281 static cb_ret_t
 282 info_callback (Widget * w, widget_msg_t msg, int parm)
 283 {
 284     struct WInfo *info = (struct WInfo *) w;
 285
 286     switch (msg)
 287     {
 288
 289     case WIDGET_INIT:
 290         init_my_statfs ();
 291         add_hook (&select_file_hook, info_hook, info);
 292         info->ready = 0;
 293         return MSG_HANDLED;
 294
 295     case WIDGET_DRAW:
 296         info_hook (info);
 297         return MSG_HANDLED;
 298
 299     case WIDGET_FOCUS:
 300         return MSG_NOT_HANDLED;
 301
 302     case WIDGET_DESTROY:
 303         delete_hook (&select_file_hook, info_hook);
 304         free_my_statfs ();
 305         return MSG_HANDLED;
 306
 307     default:
 308         return default_proc (msg, parm);
 309     }
 310 }
 311
 312 /* --------------------------------------------------------------------------------------------- */
 313
 314 static int
 315 info_event (Gpm_Event * event, void *data)
 316 {
 317     Widget *w = &((WInfo *) data)->widget;
 318
 319     /* rest of the upper frame, the menu is invisible - call menu */
 320     if (event->type & GPM_DOWN && event->y == 1 && !menubar_visible)
 321     {
 322         event->x += w->x;
 323         return the_menubar->widget.mouse (event, the_menubar);
 324     }
 325
 326     return MOU_NORMAL;
 327 }
 328
 329 /* --------------------------------------------------------------------------------------------- */
 330 /*** public functions ****************************************************************************/
 331 /* --------------------------------------------------------------------------------------------- */
 332
 333 WInfo *
 334 info_new (int y, int x, int lines, int cols)
 335 {
 336     struct WInfo *info = g_new (struct WInfo, 1);
 337
 338     init_widget (&info->widget, y, x, lines, cols, info_callback, info_event);
 339
 340     /* We do not want the cursor */
 341     widget_want_cursor (info->widget, 0);
 342
 343     return info;
 344 }
 345
 346 /* --------------------------------------------------------------------------------------------- */