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 #include "lib/widget.h"
  47 #include "lib/charsets.h"
  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 (mcview_t * view)
  78 {
  79     int SEARCH_DLG_MIN_HEIGHT = 12;
  80     int SEARCH_DLG_HEIGHT_SUPPLY = 3;
  81     int SEARCH_DLG_WIDTH = 58;
  82
  83     char *exp = NULL;
  84     int qd_result;
  85
  86     size_t num_of_types;
  87     gchar **list_of_types = mc_search_get_types_strings_array (&num_of_types);
  88     int SEARCH_DLG_HEIGHT = SEARCH_DLG_MIN_HEIGHT + num_of_types - SEARCH_DLG_HEIGHT_SUPPLY;
  89
  90     QuickWidget quick_widgets[] = {
  91         QUICK_BUTTON (6, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&Cancel"), B_CANCEL,
  92                       NULL),
  93         QUICK_BUTTON (2, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&OK"), B_ENTER, NULL),
  94 #ifdef HAVE_CHARSET
  95         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 8, SEARCH_DLG_HEIGHT,
  96                         N_("All charsets"), &mcview_search_options.all_codepages),
  97 #endif
  98         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 7, SEARCH_DLG_HEIGHT,
  99                         N_("&Whole words"), &mcview_search_options.whole_words),
 100         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 6, SEARCH_DLG_HEIGHT,
 101                         N_("&Backwards"), &mcview_search_options.backwards),
 102         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
 103                         N_("Case &sensitive"), &mcview_search_options.case_sens),
 104         QUICK_RADIO (3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
 105                      num_of_types, (const char **) list_of_types,
 106                      (int *) &mcview_search_options.type),
 107         QUICK_INPUT (3, SEARCH_DLG_WIDTH, 3, SEARCH_DLG_HEIGHT,
 108                      INPUT_LAST_TEXT, SEARCH_DLG_WIDTH - 6, 0, MC_HISTORY_SHARED_SEARCH, &exp),
 109         QUICK_LABEL (3, SEARCH_DLG_WIDTH, 2, SEARCH_DLG_HEIGHT, N_("Enter search string:")),
 110         QUICK_END
 111     };
 112
 113     QuickDialog Quick_input = {
 114         SEARCH_DLG_WIDTH, SEARCH_DLG_HEIGHT, -1, -1,
 115         N_("Search"), "[Input Line Keys]",
 116         quick_widgets, NULL, FALSE
 117     };
 118
 119     qd_result = quick_dialog (&Quick_input);
 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 = str_convert_to_input (exp);
 131
 132         if (tmp)
 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     const int goto_dlg_height = 12;
 181     int goto_dlg_width = 40;
 182
 183     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 184
 185     size_t i;
 186
 187     size_t num_of_types = sizeof (mc_view_goto_str) / sizeof (mc_view_goto_str[0]);
 188     char *exp = NULL;
 189     int qd_result;
 190     gboolean res = FALSE;
 191
 192     QuickWidget quick_widgets[] = {
 193         QUICK_BUTTON (6, 10, goto_dlg_height - 3, goto_dlg_height, N_("&Cancel"), B_CANCEL, NULL),
 194         QUICK_BUTTON (2, 10, goto_dlg_height - 3, goto_dlg_height, N_("&OK"), B_ENTER, NULL),
 195         QUICK_RADIO (3, goto_dlg_width, 4, goto_dlg_height,
 196                      num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type),
 197         QUICK_INPUT (3, goto_dlg_width, 2, goto_dlg_height,
 198                      INPUT_LAST_TEXT, goto_dlg_width - 6, 0, MC_HISTORY_VIEW_GOTO, &exp),
 199         QUICK_END
 200     };
 201
 202     QuickDialog Quick_input = {
 203         goto_dlg_width, goto_dlg_height, -1, -1,
 204         N_("Goto"), "[Input Line Keys]",
 205         quick_widgets, NULL, FALSE
 206     };
 207
 208 #ifdef ENABLE_NLS
 209     for (i = 0; i < num_of_types; i++)
 210         mc_view_goto_str[i] = _(mc_view_goto_str[i]);
 211
 212     quick_widgets[0].u.button.text = _(quick_widgets[0].u.button.text);
 213     quick_widgets[1].u.button.text = _(quick_widgets[1].u.button.text);
 214 #endif
 215
 216     /* calculate widget coordinates */
 217     {
 218         int b0_len, b1_len, len;
 219         const int button_gap = 2;
 220
 221         /* preliminary dialog width */
 222         goto_dlg_width = max (goto_dlg_width, str_term_width1 (Quick_input.title) + 4);
 223
 224         /* length of radiobuttons */
 225         for (i = 0; i < num_of_types; i++)
 226             goto_dlg_width = max (goto_dlg_width, str_term_width1 (mc_view_goto_str[i]) + 10);
 227
 228         /* length of buttons */
 229         b0_len = str_term_width1 (quick_widgets[0].u.button.text) + 3;
 230         b1_len = str_term_width1 (quick_widgets[1].u.button.text) + 5;  /* default button */
 231         len = b0_len + b1_len + button_gap * 2;
 232
 233         /* dialog width */
 234         Quick_input.xlen = max (goto_dlg_width, len + 6);
 235
 236         /* correct widget coordinates */
 237         for (i = sizeof (quick_widgets) / sizeof (quick_widgets[0]); i > 0; i--)
 238             quick_widgets[i - 1].x_divisions = Quick_input.xlen;
 239
 240         /* input length */
 241         quick_widgets[3].u.input.len = Quick_input.xlen - 6;
 242
 243         /* button positions */
 244         quick_widgets[1].relative_x = Quick_input.xlen / 2 - len / 2;
 245         quick_widgets[0].relative_x = quick_widgets[1].relative_x + b1_len + button_gap;
 246     }
 247
 248     /* run dialog */
 249     qd_result = quick_dialog (&Quick_input);
 250
 251     *offset = -1;
 252
 253     /* check input line value */
 254     if ((qd_result != B_CANCEL) && (exp != NULL) && (exp[0] != '\0'))
 255     {
 256         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 257         off_t addr;
 258         char *error;
 259
 260         res = TRUE;
 261
 262         addr = strtoll (exp, &error, base);
 263         if ((*error == '\0') && (addr >= 0))
 264         {
 265             switch (current_goto_type)
 266             {
 267             case MC_VIEW_GOTO_LINENUM:
 268                 mcview_coord_to_offset (view, offset, addr, 0);
 269                 *offset = mcview_bol (view, *offset, 0);
 270                 break;
 271             case MC_VIEW_GOTO_PERCENT:
 272                 if (addr > 100)
 273                     addr = 100;
 274                 *offset = addr * mcview_get_filesize (view) / 100;
 275                 if (!view->hex_mode)
 276                     *offset = mcview_bol (view, *offset, 0);
 277                 break;
 278             case MC_VIEW_GOTO_OFFSET_DEC:
 279             case MC_VIEW_GOTO_OFFSET_HEX:
 280                 *offset = addr;
 281                 if (!view->hex_mode)
 282                     *offset = mcview_bol (view, *offset, 0);
 283                 else
 284                 {
 285                     addr = mcview_get_filesize (view);
 286                     if (*offset > addr)
 287                         *offset = addr;
 288                 }
 289                 break;
 290             default:
 291                 *offset = 0;
 292                 break;
 293             }
 294         }
 295     }
 296
 297     g_free (exp);
 298     return res;
 299 }