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_BUTTONS_OK_CANCEL,
 105             QUICK_END
 106             /* *INDENT-ON* */
 107         };
 108
 109         quick_dialog_t qdlg = {
 110             -1, -1, 58,
 111             N_("Search"), "[Input Line Keys]",
 112             quick_widgets, NULL, NULL
 113         };
 114
 115         qd_result = quick_dialog (&qdlg);
 116     }
 117
 118     g_strfreev (list_of_types);
 119
 120     if ((qd_result == B_CANCEL) || (exp == NULL) || (exp[0] == '\0'))
 121     {
 122         g_free (exp);
 123         return FALSE;
 124     }
 125
 126 #ifdef HAVE_CHARSET
 127     {
 128         GString *tmp;
 129
 130         tmp = str_convert_to_input (exp);
 131         if (tmp != NULL)
 132         {
 133             g_free (exp);
 134             exp = g_string_free (tmp, FALSE);
 135         }
 136     }
 137 #endif
 138
 139     g_free (view->last_search_string);
 140     view->last_search_string = exp;
 141     mcview_nroff_seq_free (&view->search_nroff_seq);
 142     mc_search_free (view->search);
 143
 144     view->search = mc_search_new (view->last_search_string, -1);
 145     view->search_nroff_seq = mcview_nroff_seq_new (view);
 146     if (view->search != NULL)
 147     {
 148         view->search->search_type = mcview_search_options.type;
 149         view->search->is_all_charsets = mcview_search_options.all_codepages;
 150         view->search->is_case_sensitive = mcview_search_options.case_sens;
 151         view->search->whole_words = mcview_search_options.whole_words;
 152         view->search->search_fn = mcview_search_cmd_callback;
 153         view->search->update_fn = mcview_search_update_cmd_callback;
 154     }
 155
 156     return (view->search != NULL);
 157 }
 158
 159 /* --------------------------------------------------------------------------------------------- */
 160
 161 gboolean
 162 mcview_dialog_goto (mcview_t * view, off_t * offset)
 163 {
 164     typedef enum
 165     {
 166         MC_VIEW_GOTO_LINENUM = 0,
 167         MC_VIEW_GOTO_PERCENT = 1,
 168         MC_VIEW_GOTO_OFFSET_DEC = 2,
 169         MC_VIEW_GOTO_OFFSET_HEX = 3
 170     } mcview_goto_type_t;
 171
 172     const char *mc_view_goto_str[] = {
 173         N_("&Line number (decimal)"),
 174         N_("Pe&rcents"),
 175         N_("&Decimal offset"),
 176         N_("He&xadecimal offset")
 177     };
 178
 179     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 180
 181     size_t num_of_types;
 182     char *exp = NULL;
 183     int qd_result;
 184     gboolean res;
 185
 186     num_of_types = G_N_ELEMENTS (mc_view_goto_str);
 187
 188 #ifdef ENABLE_NLS
 189     {
 190         size_t i;
 191
 192         for (i = 0; i < num_of_types; i++)
 193             mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 194     }
 195 #endif
 196
 197     {
 198         quick_widget_t quick_widgets[] = {
 199             /* *INDENT-OFF* */
 200             QUICK_INPUT (INPUT_LAST_TEXT, 0, MC_HISTORY_VIEW_GOTO, &exp, NULL),
 201             QUICK_RADIO (num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type,
 202                          NULL),
 203             QUICK_BUTTONS_OK_CANCEL,
 204             QUICK_END
 205             /* *INDENT-ON* */
 206         };
 207
 208         quick_dialog_t qdlg = {
 209             -1, -1, 40,
 210             N_("Goto"), "[Input Line Keys]",
 211             quick_widgets, NULL, NULL
 212         };
 213
 214         /* run dialog */
 215         qd_result = quick_dialog (&qdlg);
 216     }
 217
 218     *offset = -1;
 219
 220     /* check input line value */
 221     res = (qd_result != B_CANCEL && exp != NULL && exp[0] != '\0');
 222     if (res)
 223     {
 224         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 225         off_t addr;
 226         char *error;
 227
 228         addr = (off_t) g_ascii_strtoll (exp, &error, base);
 229         if ((*error == '\0') && (addr >= 0))
 230         {
 231             switch (current_goto_type)
 232             {
 233             case MC_VIEW_GOTO_LINENUM:
 234                 mcview_coord_to_offset (view, offset, addr, 0);
 235                 *offset = mcview_bol (view, *offset, 0);
 236                 break;
 237             case MC_VIEW_GOTO_PERCENT:
 238                 if (addr > 100)
 239                     addr = 100;
 240                 *offset = addr * mcview_get_filesize (view) / 100;
 241                 if (!view->hex_mode)
 242                     *offset = mcview_bol (view, *offset, 0);
 243                 break;
 244             case MC_VIEW_GOTO_OFFSET_DEC:
 245             case MC_VIEW_GOTO_OFFSET_HEX:
 246                 *offset = addr;
 247                 if (!view->hex_mode)
 248                     *offset = mcview_bol (view, *offset, 0);
 249                 else
 250                 {
 251                     addr = mcview_get_filesize (view);
 252                     if (*offset > addr)
 253                         *offset = addr;
 254                 }
 255                 break;
 256             default:
 257                 *offset = 0;
 258                 break;
 259             }
 260         }
 261     }
 262
 263     g_free (exp);
 264     return res;
 265 }