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 Free Software Foundation, Inc.
   7
   8    Written by: 1994, 1995, 1998 Miguel de Icaza
   9    1994, 1995 Janne Kukonlehto
  10    1995 Jakub Jelinek
  11    1996 Joseph M. Hinkle
  12    1997 Norbert Warmuth
  13    1998 Pavel Machek
  14    2004 Roland Illig <roland.illig@gmx.de>
  15    2005 Roland Illig <roland.illig@gmx.de>
  16    2009 Slava Zanko <slavazanko@google.com>
  17    2009 Andrew Borodin <aborodin@vmail.ru>
  18    2009 Ilia Maslakov <il.smind@gmail.com>
  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 2 of the
  25    License, or (at your option) any later version.
  26
  27    The Midnight Commander is distributed in the hope that it will be
  28    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  29    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  30    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, write to the Free Software
  34    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  35    MA 02110-1301, USA.
  36  */
  37
  38 #include <config.h>
  39
  40 #include <stdlib.h>
  41 #include <sys/types.h>
  42
  43 #include "lib/global.h"
  44 #include "lib/search.h"
  45 #include "lib/strutil.h"
  46
  47 #include "src/wtools.h"
  48 #include "src/history.h"
  49 #include "src/charsets.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 /*** public functions ****************************************************************************/
  72
  73 /* --------------------------------------------------------------------------------------------- */
  74
  75 gboolean
  76 mcview_dialog_search (mcview_t * view)
  77 {
  78     int SEARCH_DLG_MIN_HEIGHT = 12;
  79     int SEARCH_DLG_HEIGHT_SUPPLY = 3;
  80     int SEARCH_DLG_WIDTH = 58;
  81
  82     char *exp = NULL;
  83     int qd_result;
  84
  85     size_t num_of_types;
  86     gchar **list_of_types = mc_search_get_types_strings_array (&num_of_types);
  87     int SEARCH_DLG_HEIGHT = SEARCH_DLG_MIN_HEIGHT + num_of_types - SEARCH_DLG_HEIGHT_SUPPLY;
  88
  89     QuickWidget quick_widgets[] = {
  90         QUICK_BUTTON (6, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&Cancel"), B_CANCEL,
  91                       NULL),
  92         QUICK_BUTTON (2, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&OK"), B_ENTER, NULL),
  93 #ifdef HAVE_CHARSET
  94         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 8, SEARCH_DLG_HEIGHT,
  95                         N_("All charsets"), &mcview_search_options.all_codepages),
  96 #endif
  97         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 7, SEARCH_DLG_HEIGHT,
  98                         N_("&Whole words"), &mcview_search_options.whole_words),
  99         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 6, SEARCH_DLG_HEIGHT,
 100                         N_("&Backwards"), &mcview_search_options.backwards),
 101         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
 102                         N_("case &Sensitive"), &mcview_search_options.case_sens),
 103         QUICK_RADIO (3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
 104                      num_of_types, (const char **) list_of_types,
 105                      (int *) &mcview_search_options.type),
 106         QUICK_INPUT (3, SEARCH_DLG_WIDTH, 3, SEARCH_DLG_HEIGHT,
 107                      INPUT_LAST_TEXT, SEARCH_DLG_WIDTH - 6, 0, MC_HISTORY_SHARED_SEARCH, &exp),
 108         QUICK_LABEL (2, SEARCH_DLG_WIDTH, 2, SEARCH_DLG_HEIGHT, N_(" Enter search string:")),
 109         QUICK_END
 110     };
 111
 112     QuickDialog Quick_input = {
 113         SEARCH_DLG_WIDTH, SEARCH_DLG_HEIGHT, -1, -1,
 114         N_("Search"), "[Input Line Keys]",
 115         quick_widgets, FALSE
 116     };
 117
 118     qd_result = quick_dialog (&Quick_input);
 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 = str_convert_to_input (exp);
 130
 131         if (tmp)
 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_sentitive = 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     const int goto_dlg_height = 12;
 180     int goto_dlg_width = 40;
 181
 182     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 183
 184     size_t i;
 185
 186     size_t num_of_types = sizeof (mc_view_goto_str) / sizeof (mc_view_goto_str[0]);
 187     char *exp = NULL;
 188     int qd_result;
 189     gboolean res = FALSE;
 190
 191     QuickWidget quick_widgets[] = {
 192         QUICK_BUTTON (6, 10, goto_dlg_height - 3, goto_dlg_height, N_("&Cancel"), B_CANCEL, NULL),
 193         QUICK_BUTTON (2, 10, goto_dlg_height - 3, goto_dlg_height, N_("&OK"), B_ENTER, NULL),
 194         QUICK_RADIO (3, goto_dlg_width, 4, goto_dlg_height,
 195                      num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type),
 196         QUICK_INPUT (3, goto_dlg_width, 2, goto_dlg_height,
 197                      INPUT_LAST_TEXT, goto_dlg_width - 6, 0, MC_HISTORY_VIEW_GOTO, &exp),
 198         QUICK_END
 199     };
 200
 201     QuickDialog Quick_input = {
 202         goto_dlg_width, goto_dlg_height, -1, -1,
 203         N_("Goto"), "[Input Line Keys]",
 204         quick_widgets, FALSE
 205     };
 206
 207 #ifdef ENABLE_NLS
 208     for (i = 0; i < num_of_types; i++)
 209         mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 210
 211     quick_widgets[0].u.button.text = _(quick_widgets[0].u.button.text);
 212     quick_widgets[1].u.button.text = _(quick_widgets[1].u.button.text);
 213 #endif
 214
 215     /* calculate widget coordinates */
 216     {
 217         int b0_len, b1_len, len;
 218         const int button_gap = 2;
 219
 220         /* preliminary dialog width */
 221         goto_dlg_width = max (goto_dlg_width, str_term_width1 (Quick_input.title) + 4);
 222
 223         /* length of radiobuttons */
 224         for (i = 0; i < num_of_types; i++)
 225             goto_dlg_width = max (goto_dlg_width, str_term_width1 (mc_view_goto_str[i]) + 10);
 226
 227         /* length of buttons */
 228         b0_len = str_term_width1 (quick_widgets[0].u.button.text) + 3;
 229         b1_len = str_term_width1 (quick_widgets[1].u.button.text) + 5;  /* default button */
 230         len = b0_len + b1_len + button_gap * 2;
 231
 232         /* dialog width */
 233         Quick_input.xlen = max (goto_dlg_width, len + 6);
 234
 235         /* correct widget coordinates */
 236         for (i = sizeof (quick_widgets) / sizeof (quick_widgets[0]); i > 0; i--)
 237             quick_widgets[i - 1].x_divisions = Quick_input.xlen;
 238
 239         /* input length */
 240         quick_widgets[3].u.input.len = Quick_input.xlen - 6;
 241
 242         /* button positions */
 243         quick_widgets[1].relative_x = Quick_input.xlen / 2 - len / 2;
 244         quick_widgets[0].relative_x = quick_widgets[1].relative_x + b1_len + button_gap;
 245     }
 246
 247     /* run dialog */
 248     qd_result = quick_dialog (&Quick_input);
 249
 250     *offset = -1;
 251
 252     /* check input line value */
 253     if ((qd_result != B_CANCEL) && (exp != NULL) && (exp[0] != '\0'))
 254     {
 255         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 256         off_t addr;
 257         char *error;
 258
 259         res = TRUE;
 260
 261         addr = strtoll (exp, &error, base);
 262         if ((*error == '\0') && (addr >= 0))
 263         {
 264             switch (current_goto_type)
 265             {
 266             case MC_VIEW_GOTO_LINENUM:
 267                 mcview_coord_to_offset (view, offset, addr, 0);
 268                 break;
 269             case MC_VIEW_GOTO_PERCENT:
 270                 if (addr > 100)
 271                     addr = 100;
 272                 *offset = addr * mcview_get_filesize (view) / 100;
 273                 break;
 274             case MC_VIEW_GOTO_OFFSET_DEC:
 275                 *offset = addr;
 276                 break;
 277             case MC_VIEW_GOTO_OFFSET_HEX:
 278                 *offset = addr;
 279                 break;
 280             default:
 281                 break;
 282             }
 283             *offset = mcview_bol (view, *offset);
 284         }
 285     }
 286
 287     g_free (exp);
 288     return res;
 289 }