src/viewer/dialogs.c

   1 /*
   2    Internal file viewer for the Midnight Commander
   3    Function for paint dialogs
   4
   5    Copyright (C) 1994-2016
   6    Free Software Foundation, Inc.
   7
   8    Written by:
   9    Miguel de Icaza, 1994, 1995, 1998
  10    Janne Kukonlehto, 1994, 1995
  11    Jakub Jelinek, 1995
  12    Joseph M. Hinkle, 1996
  13    Norbert Warmuth, 1997
  14    Pavel Machek, 1998
  15    Roland Illig <roland.illig@gmx.de>, 2004, 2005
  16    Slava Zanko <slavazanko@google.com>, 2009
  17    Andrew Borodin <aborodin@vmail.ru>, 2009, 2012
  18    Ilia Maslakov <il.smind@gmail.com>, 2009
  19
  20    This file is part of the Midnight Commander.
  21
  22    The Midnight Commander is free software: you can redistribute it
  23    and/or modify it under the terms of the GNU General Public License as
  24    published by the Free Software Foundation, either version 3 of the License,
  25    or (at your option) any later version.
  26
  27    The Midnight Commander is distributed in the hope that it will be useful,
  28    but WITHOUT ANY WARRANTY; without even the implied warranty of
  29    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  30    GNU General Public License for more details.
  31
  32    You should have received a copy of the GNU General Public License
  33    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  34  */
  35
  36 #include <config.h>
  37
  38 #include <stdlib.h>
  39 #include <sys/types.h>
  40
  41 #include "lib/global.h"
  42 #include "lib/search.h"
  43 #include "lib/strutil.h"
  44 #include "lib/widget.h"
  45 #ifdef HAVE_CHARSET
  46 #include "lib/charsets.h"
  47 #endif
  48
  49 #include "src/history.h"
  50
  51 #include "internal.h"
  52
  53 /*** global variables ****************************************************************************/
  54
  55 mcview_search_options_t mcview_search_options = {
  56     .type = MC_SEARCH_T_NORMAL,
  57     .case_sens = FALSE,
  58     .backwards = FALSE,
  59     .whole_words = FALSE,
  60     .all_codepages = FALSE
  61 };
  62
  63 /*** file scope macro definitions ****************************************************************/
  64
  65 /*** file scope type declarations ****************************************************************/
  66
  67 /*** file scope variables ************************************************************************/
  68
  69 /*** file scope functions ************************************************************************/
  70 /* --------------------------------------------------------------------------------------------- */
  71
  72 /* --------------------------------------------------------------------------------------------- */
  73 /*** public functions ****************************************************************************/
  74 /* --------------------------------------------------------------------------------------------- */
  75
  76 gboolean
  77 mcview_dialog_search (WView * view)
  78 {
  79     char *exp = NULL;
  80     int qd_result;
  81     size_t num_of_types;
  82     gchar **list_of_types;
  83
  84     list_of_types = mc_search_get_types_strings_array (&num_of_types);
  85
  86     {
  87         quick_widget_t quick_widgets[] = {
  88             /* *INDENT-OFF* */
  89             QUICK_LABELED_INPUT (N_("Enter search string:"), input_label_above,
  90                                  INPUT_LAST_TEXT, MC_HISTORY_SHARED_SEARCH, &exp,
  91                                  NULL, FALSE, FALSE, INPUT_COMPLETE_NONE),
  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 #ifdef HAVE_CHARSET
 145     view->search = mc_search_new (view->last_search_string, cp_source);
 146 #else
 147     view->search = mc_search_new (view->last_search_string, NULL);
 148 #endif
 149     view->search_nroff_seq = mcview_nroff_seq_new (view);
 150     if (view->search != NULL)
 151     {
 152         view->search->search_type = mcview_search_options.type;
 153 #ifdef HAVE_CHARSET
 154         view->search->is_all_charsets = mcview_search_options.all_codepages;
 155 #endif
 156         view->search->is_case_sensitive = mcview_search_options.case_sens;
 157         view->search->whole_words = mcview_search_options.whole_words;
 158         view->search->search_fn = mcview_search_cmd_callback;
 159         view->search->update_fn = mcview_search_update_cmd_callback;
 160     }
 161
 162     return (view->search != NULL);
 163 }
 164
 165 /* --------------------------------------------------------------------------------------------- */
 166
 167 gboolean
 168 mcview_dialog_goto (WView * view, off_t * offset)
 169 {
 170     typedef enum
 171     {
 172         MC_VIEW_GOTO_LINENUM = 0,
 173         MC_VIEW_GOTO_PERCENT = 1,
 174         MC_VIEW_GOTO_OFFSET_DEC = 2,
 175         MC_VIEW_GOTO_OFFSET_HEX = 3
 176     } mcview_goto_type_t;
 177
 178     const char *mc_view_goto_str[] = {
 179         N_("&Line number"),
 180         N_("Pe&rcents"),
 181         N_("&Decimal offset"),
 182         N_("He&xadecimal offset")
 183     };
 184
 185     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 186
 187     size_t num_of_types;
 188     char *exp = NULL;
 189     int qd_result;
 190     gboolean res;
 191
 192     num_of_types = G_N_ELEMENTS (mc_view_goto_str);
 193
 194 #ifdef ENABLE_NLS
 195     {
 196         size_t i;
 197
 198         for (i = 0; i < num_of_types; i++)
 199             mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 200     }
 201 #endif
 202
 203     {
 204         quick_widget_t quick_widgets[] = {
 205             /* *INDENT-OFF* */
 206             QUICK_INPUT (INPUT_LAST_TEXT, MC_HISTORY_VIEW_GOTO, &exp, NULL,
 207                          FALSE, FALSE, INPUT_COMPLETE_NONE),
 208             QUICK_RADIO (num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type,
 209                          NULL),
 210             QUICK_BUTTONS_OK_CANCEL,
 211             QUICK_END
 212             /* *INDENT-ON* */
 213         };
 214
 215         quick_dialog_t qdlg = {
 216             -1, -1, 40,
 217             N_("Goto"), "[Input Line Keys]",
 218             quick_widgets, NULL, NULL
 219         };
 220
 221         /* run dialog */
 222         qd_result = quick_dialog (&qdlg);
 223     }
 224
 225     *offset = -1;
 226
 227     /* check input line value */
 228     res = (qd_result != B_CANCEL && exp != NULL && exp[0] != '\0');
 229     if (res)
 230     {
 231         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 232         off_t addr;
 233         char *error;
 234
 235         addr = (off_t) g_ascii_strtoll (exp, &error, base);
 236         if ((*error == '\0') && (addr >= 0))
 237         {
 238             switch (current_goto_type)
 239             {
 240             case MC_VIEW_GOTO_LINENUM:
 241                 /* Line number entered by user is 1-based. */
 242                 if (addr > 0)
 243                     addr--;
 244                 mcview_coord_to_offset (view, offset, addr, 0);
 245                 *offset = mcview_bol (view, *offset, 0);
 246                 break;
 247             case MC_VIEW_GOTO_PERCENT:
 248                 if (addr > 100)
 249                     addr = 100;
 250                 *offset = addr * mcview_get_filesize (view) / 100;
 251                 if (!view->hex_mode)
 252                     *offset = mcview_bol (view, *offset, 0);
 253                 break;
 254             case MC_VIEW_GOTO_OFFSET_DEC:
 255             case MC_VIEW_GOTO_OFFSET_HEX:
 256                 *offset = addr;
 257                 if (!view->hex_mode)
 258                     *offset = mcview_bol (view, *offset, 0);
 259                 else
 260                 {
 261                     addr = mcview_get_filesize (view);
 262                     if (*offset > addr)
 263                         *offset = addr;
 264                 }
 265                 break;
 266             default:
 267                 *offset = 0;
 268                 break;
 269             }
 270         }
 271     }
 272
 273     g_free (exp);
 274     return res;
 275 }