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, MC_HISTORY_SHARED_SEARCH, &exp,
  92                                  NULL, FALSE, FALSE, INPUT_COMPLETE_DEFAULT),
  93             QUICK_SEPARATOR (TRUE),
  94             QUICK_START_COLUMNS,
  95                 QUICK_RADIO (num_of_types, (const char **) list_of_types,
  96                              (int *) &mcview_search_options.type, NULL),
  97             QUICK_NEXT_COLUMN,
  98                 QUICK_CHECKBOX (N_("Cas&e sensitive"), &mcview_search_options.case_sens, NULL),
  99                 QUICK_CHECKBOX (N_("&Backwards"), &mcview_search_options.backwards, NULL),
 100                 QUICK_CHECKBOX (N_("&Whole words"), &mcview_search_options.whole_words, NULL),
 101 #ifdef HAVE_CHARSET
 102                 QUICK_CHECKBOX (N_("&All charsets"), &mcview_search_options.all_codepages, NULL),
 103 #endif
 104             QUICK_STOP_COLUMNS,
 105             QUICK_BUTTONS_OK_CANCEL,
 106             QUICK_END
 107             /* *INDENT-ON* */
 108         };
 109
 110         quick_dialog_t qdlg = {
 111             -1, -1, 58,
 112             N_("Search"), "[Input Line Keys]",
 113             quick_widgets, NULL, NULL
 114         };
 115
 116         qd_result = quick_dialog (&qdlg);
 117     }
 118
 119     g_strfreev (list_of_types);
 120
 121     if ((qd_result == B_CANCEL) || (exp == NULL) || (exp[0] == '\0'))
 122     {
 123         g_free (exp);
 124         return FALSE;
 125     }
 126
 127 #ifdef HAVE_CHARSET
 128     {
 129         GString *tmp;
 130
 131         tmp = str_convert_to_input (exp);
 132         if (tmp != NULL)
 133         {
 134             g_free (exp);
 135             exp = g_string_free (tmp, FALSE);
 136         }
 137     }
 138 #endif
 139
 140     g_free (view->last_search_string);
 141     view->last_search_string = exp;
 142     mcview_nroff_seq_free (&view->search_nroff_seq);
 143     mc_search_free (view->search);
 144
 145     view->search = mc_search_new (view->last_search_string, -1);
 146     view->search_nroff_seq = mcview_nroff_seq_new (view);
 147     if (view->search != NULL)
 148     {
 149         view->search->search_type = mcview_search_options.type;
 150         view->search->is_all_charsets = mcview_search_options.all_codepages;
 151         view->search->is_case_sensitive = mcview_search_options.case_sens;
 152         view->search->whole_words = mcview_search_options.whole_words;
 153         view->search->search_fn = mcview_search_cmd_callback;
 154         view->search->update_fn = mcview_search_update_cmd_callback;
 155     }
 156
 157     return (view->search != NULL);
 158 }
 159
 160 /* --------------------------------------------------------------------------------------------- */
 161
 162 gboolean
 163 mcview_dialog_goto (mcview_t * view, off_t * offset)
 164 {
 165     typedef enum
 166     {
 167         MC_VIEW_GOTO_LINENUM = 0,
 168         MC_VIEW_GOTO_PERCENT = 1,
 169         MC_VIEW_GOTO_OFFSET_DEC = 2,
 170         MC_VIEW_GOTO_OFFSET_HEX = 3
 171     } mcview_goto_type_t;
 172
 173     const char *mc_view_goto_str[] = {
 174         N_("&Line number (decimal)"),
 175         N_("Pe&rcents"),
 176         N_("&Decimal offset"),
 177         N_("He&xadecimal offset")
 178     };
 179
 180     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 181
 182     size_t num_of_types;
 183     char *exp = NULL;
 184     int qd_result;
 185     gboolean res;
 186
 187     num_of_types = G_N_ELEMENTS (mc_view_goto_str);
 188
 189 #ifdef ENABLE_NLS
 190     {
 191         size_t i;
 192
 193         for (i = 0; i < num_of_types; i++)
 194             mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 195     }
 196 #endif
 197
 198     {
 199         quick_widget_t quick_widgets[] = {
 200             /* *INDENT-OFF* */
 201             QUICK_INPUT (INPUT_LAST_TEXT, MC_HISTORY_VIEW_GOTO, &exp, NULL,
 202                          FALSE, FALSE, INPUT_COMPLETE_DEFAULT),
 203             QUICK_RADIO (num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type,
 204                          NULL),
 205             QUICK_BUTTONS_OK_CANCEL,
 206             QUICK_END
 207             /* *INDENT-ON* */
 208         };
 209
 210         quick_dialog_t qdlg = {
 211             -1, -1, 40,
 212             N_("Goto"), "[Input Line Keys]",
 213             quick_widgets, NULL, NULL
 214         };
 215
 216         /* run dialog */
 217         qd_result = quick_dialog (&qdlg);
 218     }
 219
 220     *offset = -1;
 221
 222     /* check input line value */
 223     res = (qd_result != B_CANCEL && exp != NULL && exp[0] != '\0');
 224     if (res)
 225     {
 226         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 227         off_t addr;
 228         char *error;
 229
 230         addr = (off_t) g_ascii_strtoll (exp, &error, base);
 231         if ((*error == '\0') && (addr >= 0))
 232         {
 233             switch (current_goto_type)
 234             {
 235             case MC_VIEW_GOTO_LINENUM:
 236                 mcview_coord_to_offset (view, offset, addr, 0);
 237                 *offset = mcview_bol (view, *offset, 0);
 238                 break;
 239             case MC_VIEW_GOTO_PERCENT:
 240                 if (addr > 100)
 241                     addr = 100;
 242                 *offset = addr * mcview_get_filesize (view) / 100;
 243                 if (!view->hex_mode)
 244                     *offset = mcview_bol (view, *offset, 0);
 245                 break;
 246             case MC_VIEW_GOTO_OFFSET_DEC:
 247             case MC_VIEW_GOTO_OFFSET_HEX:
 248                 *offset = addr;
 249                 if (!view->hex_mode)
 250                     *offset = mcview_bol (view, *offset, 0);
 251                 else
 252                 {
 253                     addr = mcview_get_filesize (view);
 254                     if (*offset > addr)
 255                         *offset = addr;
 256                 }
 257                 break;
 258             default:
 259                 *offset = 0;
 260                 break;
 261             }
 262         }
 263     }
 264
 265     g_free (exp);
 266     return res;
 267 }