src/viewer/dialogs.c

   1 /*
   2    Internal file viewer for the Midnight Commander
   3    Function for paint dialogs
   4
   5    Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
   6    2004, 2005, 2006, 2007, 2009, 2011
   7    The Free Software Foundation, Inc.
   8
   9    Written by:
  10    Miguel de Icaza, 1994, 1995, 1998
  11    Janne Kukonlehto, 1994, 1995
  12    Jakub Jelinek, 1995
  13    Joseph M. Hinkle, 1996
  14    Norbert Warmuth, 1997
  15    Pavel Machek, 1998
  16    Roland Illig <roland.illig@gmx.de>, 2004, 2005
  17    Slava Zanko <slavazanko@google.com>, 2009
  18    Andrew Borodin <aborodin@vmail.ru>, 2009, 2012
  19    Ilia Maslakov <il.smind@gmail.com>, 2009
  20
  21    This file is part of the Midnight Commander.
  22
  23    The Midnight Commander is free software: you can redistribute it
  24    and/or modify it under the terms of the GNU General Public License as
  25    published by the Free Software Foundation, either version 3 of the License,
  26    or (at your option) any later version.
  27
  28    The Midnight Commander is distributed in the hope that it will be useful,
  29    but WITHOUT ANY WARRANTY; without even the implied warranty of
  30    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  31    GNU General Public License for more details.
  32
  33    You should have received a copy of the GNU General Public License
  34    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  35  */
  36
  37 #include <config.h>
  38
  39 #include <stdlib.h>
  40 #include <sys/types.h>
  41
  42 #include "lib/global.h"
  43 #include "lib/search.h"
  44 #include "lib/strutil.h"
  45 #include "lib/widget.h"
  46 #ifdef HAVE_CHARSET
  47 #include "lib/charsets.h"
  48 #endif
  49
  50 #include "src/history.h"
  51
  52 #include "internal.h"
  53
  54 /*** global variables ****************************************************************************/
  55
  56 mcview_search_options_t mcview_search_options = {
  57     .type = MC_SEARCH_T_NORMAL,
  58     .case_sens = FALSE,
  59     .backwards = FALSE,
  60     .whole_words = FALSE,
  61     .all_codepages = FALSE
  62 };
  63
  64 /*** file scope macro definitions ****************************************************************/
  65
  66 /*** file scope type declarations ****************************************************************/
  67
  68 /*** file scope variables ************************************************************************/
  69
  70 /*** file scope functions ************************************************************************/
  71 /* --------------------------------------------------------------------------------------------- */
  72
  73 /* --------------------------------------------------------------------------------------------- */
  74 /*** public functions ****************************************************************************/
  75 /* --------------------------------------------------------------------------------------------- */
  76
  77 gboolean
  78 mcview_dialog_search (mcview_t * view)
  79 {
  80     char *exp = NULL;
  81     int qd_result;
  82     size_t num_of_types;
  83     gchar **list_of_types;
  84
  85     list_of_types = mc_search_get_types_strings_array (&num_of_types);
  86
  87     {
  88         quick_widget_t quick_widgets[] = {
  89             /* *INDENT-OFF* */
  90             QUICK_LABELED_INPUT (N_("Enter search string:"), input_label_above,
  91                                  INPUT_LAST_TEXT, 0, MC_HISTORY_SHARED_SEARCH, &exp, NULL),
  92             QUICK_SEPARATOR (TRUE),
  93             QUICK_START_COLUMNS,
  94                 QUICK_RADIO (num_of_types, (const char **) list_of_types,
  95                              (int *) &mcview_search_options.type, NULL),
  96             QUICK_NEXT_COLUMN,
  97                 QUICK_CHECKBOX (N_("Cas&e sensitive"), &mcview_search_options.case_sens, NULL),
  98                 QUICK_CHECKBOX (N_("&Backwards"), &mcview_search_options.backwards, NULL),
  99                 QUICK_CHECKBOX (N_("&Whole words"), &mcview_search_options.whole_words, NULL),
 100 #ifdef HAVE_CHARSET
 101                 QUICK_CHECKBOX (N_("&All charsets"), &mcview_search_options.all_codepages, NULL),
 102 #endif
 103             QUICK_STOP_COLUMNS,
 104             QUICK_START_BUTTONS (TRUE, TRUE),
 105                 QUICK_BUTTON (N_("&OK"), B_ENTER, NULL, NULL),
 106                 QUICK_BUTTON (N_("&Cancel"), B_CANCEL, NULL, NULL),
 107             /* *INDENT-ON* */
 108             QUICK_END
 109         };
 110
 111         quick_dialog_t qdlg = {
 112             -1, -1, 58,
 113             N_("Search"), "[Input Line Keys]",
 114             quick_widgets, NULL, NULL
 115         };
 116
 117         qd_result = quick_dialog (&qdlg);
 118     }
 119
 120     g_strfreev (list_of_types);
 121
 122     if ((qd_result == B_CANCEL) || (exp == NULL) || (exp[0] == '\0'))
 123     {
 124         g_free (exp);
 125         return FALSE;
 126     }
 127
 128 #ifdef HAVE_CHARSET
 129     {
 130         GString *tmp;
 131
 132         tmp = str_convert_to_input (exp);
 133         if (tmp != NULL)
 134         {
 135             g_free (exp);
 136             exp = g_string_free (tmp, FALSE);
 137         }
 138     }
 139 #endif
 140
 141     g_free (view->last_search_string);
 142     view->last_search_string = exp;
 143     mcview_nroff_seq_free (&view->search_nroff_seq);
 144     mc_search_free (view->search);
 145
 146     view->search = mc_search_new (view->last_search_string, -1);
 147     view->search_nroff_seq = mcview_nroff_seq_new (view);
 148     if (view->search != NULL)
 149     {
 150         view->search->search_type = mcview_search_options.type;
 151         view->search->is_all_charsets = mcview_search_options.all_codepages;
 152         view->search->is_case_sensitive = mcview_search_options.case_sens;
 153         view->search->whole_words = mcview_search_options.whole_words;
 154         view->search->search_fn = mcview_search_cmd_callback;
 155         view->search->update_fn = mcview_search_update_cmd_callback;
 156     }
 157
 158     return (view->search != NULL);
 159 }
 160
 161 /* --------------------------------------------------------------------------------------------- */
 162
 163 gboolean
 164 mcview_dialog_goto (mcview_t * view, off_t * offset)
 165 {
 166     typedef enum
 167     {
 168         MC_VIEW_GOTO_LINENUM = 0,
 169         MC_VIEW_GOTO_PERCENT = 1,
 170         MC_VIEW_GOTO_OFFSET_DEC = 2,
 171         MC_VIEW_GOTO_OFFSET_HEX = 3
 172     } mcview_goto_type_t;
 173
 174     const char *mc_view_goto_str[] = {
 175         N_("&Line number (decimal)"),
 176         N_("Pe&rcents"),
 177         N_("&Decimal offset"),
 178         N_("He&xadecimal offset")
 179     };
 180
 181     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 182
 183     size_t num_of_types;
 184     char *exp = NULL;
 185     int qd_result;
 186     gboolean res;
 187
 188     num_of_types = G_N_ELEMENTS (mc_view_goto_str);
 189
 190 #ifdef ENABLE_NLS
 191     {
 192         size_t i;
 193
 194         for (i = 0; i < num_of_types; i++)
 195             mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 196     }
 197 #endif
 198
 199     {
 200         quick_widget_t quick_widgets[] = {
 201             /* *INDENT-OFF* */
 202             QUICK_INPUT (INPUT_LAST_TEXT, 0, MC_HISTORY_VIEW_GOTO, &exp, NULL),
 203             QUICK_RADIO (num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type,
 204                          NULL),
 205             QUICK_START_BUTTONS (TRUE, TRUE),
 206                 QUICK_BUTTON (N_("&OK"), B_ENTER, NULL, NULL),
 207                 QUICK_BUTTON (N_("&Cancel"), B_CANCEL, NULL, NULL),
 208             QUICK_END
 209             /* *INDENT-ON* */
 210         };
 211
 212         quick_dialog_t qdlg = {
 213             -1, -1, 40,
 214             N_("Goto"), "[Input Line Keys]",
 215             quick_widgets, NULL, NULL
 216         };
 217
 218         /* run dialog */
 219         qd_result = quick_dialog (&qdlg);
 220     }
 221
 222     *offset = -1;
 223
 224     /* check input line value */
 225     res = (qd_result != B_CANCEL && exp != NULL && exp[0] != '\0');
 226     if (res)
 227     {
 228         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 229         off_t addr;
 230         char *error;
 231
 232         addr = strtoll (exp, &error, base);
 233         if ((*error == '\0') && (addr >= 0))
 234         {
 235             switch (current_goto_type)
 236             {
 237             case MC_VIEW_GOTO_LINENUM:
 238                 mcview_coord_to_offset (view, offset, addr, 0);
 239                 *offset = mcview_bol (view, *offset, 0);
 240                 break;
 241             case MC_VIEW_GOTO_PERCENT:
 242                 if (addr > 100)
 243                     addr = 100;
 244                 *offset = addr * mcview_get_filesize (view) / 100;
 245                 if (!view->hex_mode)
 246                     *offset = mcview_bol (view, *offset, 0);
 247                 break;
 248             case MC_VIEW_GOTO_OFFSET_DEC:
 249             case MC_VIEW_GOTO_OFFSET_HEX:
 250                 *offset = addr;
 251                 if (!view->hex_mode)
 252                     *offset = mcview_bol (view, *offset, 0);
 253                 else
 254                 {
 255                     addr = mcview_get_filesize (view);
 256                     if (*offset > addr)
 257                         *offset = addr;
 258                 }
 259                 break;
 260             default:
 261                 *offset = 0;
 262                 break;
 263             }
 264         }
 265     }
 266
 267     g_free (exp);
 268     return res;
 269 }