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 /*** file scope macro definitions ****************************************************************/
  56
  57 /*** file scope type declarations ****************************************************************/
  58
  59 /*** file scope variables ************************************************************************/
  60
  61 /*** file scope functions ************************************************************************/
  62
  63 /*** public functions ****************************************************************************/
  64
  65 /* --------------------------------------------------------------------------------------------- */
  66
  67 gboolean
  68 mcview_dialog_search (mcview_t * view)
  69 {
  70     int SEARCH_DLG_MIN_HEIGHT = 12;
  71     int SEARCH_DLG_HEIGHT_SUPPLY = 3;
  72     int SEARCH_DLG_WIDTH = 58;
  73
  74     char *exp = NULL;
  75     int qd_result;
  76
  77     size_t num_of_types;
  78     gchar **list_of_types = mc_search_get_types_strings_array (&num_of_types);
  79     int SEARCH_DLG_HEIGHT = SEARCH_DLG_MIN_HEIGHT + num_of_types - SEARCH_DLG_HEIGHT_SUPPLY;
  80
  81     QuickWidget quick_widgets[] =
  82     {
  83         QUICK_BUTTON (6, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&Cancel"), B_CANCEL, NULL),
  84         QUICK_BUTTON (2, 10, SEARCH_DLG_HEIGHT - 3, SEARCH_DLG_HEIGHT, N_("&OK"), B_ENTER, NULL),
  85 #ifdef HAVE_CHARSET
  86         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 8, SEARCH_DLG_HEIGHT,
  87                         N_("All charsets"), &view->search_all_codepages),
  88 #endif
  89         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 7, SEARCH_DLG_HEIGHT,
  90                         N_("&Whole words"), &view->whole_words),
  91         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 6, SEARCH_DLG_HEIGHT,
  92                         N_("&Backwards"), &view->search_backwards),
  93         QUICK_CHECKBOX (SEARCH_DLG_WIDTH / 2 + 3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
  94                         N_("case &Sensitive"),  &view->search_case),
  95         QUICK_RADIO (3, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT,
  96                         num_of_types, (const char **) list_of_types, (int *) &view->search_type),
  97         QUICK_INPUT (3, SEARCH_DLG_WIDTH, 3, SEARCH_DLG_HEIGHT,
  98                         INPUT_LAST_TEXT, SEARCH_DLG_WIDTH - 6, 0, MC_HISTORY_SHARED_SEARCH, &exp),
  99         QUICK_LABEL (2, SEARCH_DLG_WIDTH, 2, SEARCH_DLG_HEIGHT, N_(" Enter search string:")),
 100         QUICK_END
 101     };
 102
 103     QuickDialog Quick_input =
 104     {
 105         SEARCH_DLG_WIDTH, SEARCH_DLG_HEIGHT, -1, -1,
 106         N_("Search"), "[Input Line Keys]",
 107         quick_widgets, FALSE
 108     };
 109
 110     qd_result = quick_dialog (&Quick_input);
 111     g_strfreev (list_of_types);
 112
 113     if ((qd_result == B_CANCEL) || (exp == NULL) || (exp[0] == '\0')) {
 114         g_free (exp);
 115         return FALSE;
 116     }
 117
 118 #ifdef HAVE_CHARSET
 119     {
 120         GString *tmp = str_convert_to_input (exp);
 121
 122         if (tmp) {
 123             g_free (exp);
 124             exp = g_string_free (tmp, FALSE);
 125         }
 126     }
 127 #endif
 128
 129     g_free (view->last_search_string);
 130     view->last_search_string = exp;
 131
 132     if (view->search_nroff_seq != NULL)
 133         mcview_nroff_seq_free (&(view->search_nroff_seq));
 134
 135     if (view->search != NULL)
 136         mc_search_free (view->search);
 137
 138     view->search = mc_search_new (view->last_search_string, -1);
 139     view->search_nroff_seq = mcview_nroff_seq_new (view);
 140     if (view->search != NULL) {
 141         view->search->search_type = view->search_type;
 142         view->search->is_all_charsets = view->search_all_codepages;
 143         view->search->is_case_sentitive = view->search_case;
 144         view->search->search_fn = mcview_search_cmd_callback;
 145         view->search->update_fn = mcview_search_update_cmd_callback;
 146         view->search->whole_words = view->whole_words;
 147     }
 148
 149     return (view->search != NULL);
 150 }
 151
 152 /* --------------------------------------------------------------------------------------------- */
 153
 154 gboolean
 155 mcview_dialog_goto (mcview_t *view, off_t *offset)
 156 {
 157     typedef enum {
 158         MC_VIEW_GOTO_LINENUM = 0,
 159         MC_VIEW_GOTO_PERCENT = 1,
 160         MC_VIEW_GOTO_OFFSET_DEC = 2,
 161         MC_VIEW_GOTO_OFFSET_HEX = 3
 162     } mcview_goto_type_t;
 163
 164     const char *mc_view_goto_str[] =
 165     {
 166         N_("&Line number (decimal)"),
 167         N_("Pe&rcents"),
 168         N_("&Decimal offset"),
 169         N_("He&xadecimal offset")
 170     };
 171
 172     const int goto_dlg_height = 12;
 173     int goto_dlg_width = 40;
 174
 175     static mcview_goto_type_t current_goto_type = MC_VIEW_GOTO_LINENUM;
 176
 177     size_t i;
 178
 179     size_t num_of_types = sizeof (mc_view_goto_str) /sizeof (mc_view_goto_str[0]);
 180     char *exp = NULL;
 181     int qd_result;
 182     gboolean res = FALSE;
 183
 184     QuickWidget quick_widgets[] =
 185     {
 186         QUICK_BUTTON (6, 10, goto_dlg_height - 3, goto_dlg_height, N_("&Cancel"), B_CANCEL, NULL),
 187         QUICK_BUTTON (2, 10, goto_dlg_height - 3, goto_dlg_height, N_("&OK"), B_ENTER, NULL),
 188         QUICK_RADIO (3, goto_dlg_width, 4, goto_dlg_height,
 189                         num_of_types, (const char **) mc_view_goto_str, (int *) &current_goto_type),
 190         QUICK_INPUT (3, goto_dlg_width, 2, goto_dlg_height,
 191                         INPUT_LAST_TEXT, goto_dlg_width - 6, 0, MC_HISTORY_VIEW_GOTO, &exp),
 192         QUICK_END
 193     };
 194
 195     QuickDialog Quick_input =
 196     {
 197         goto_dlg_width, goto_dlg_height, -1, -1,
 198         N_("Goto"), "[Input Line Keys]",
 199         quick_widgets, FALSE
 200     };
 201
 202 #ifdef ENABLE_NLS
 203     for (i = 0; i < num_of_types; i++)
 204         mc_view_goto_str [i] = _(mc_view_goto_str [i]);
 205
 206     quick_widgets[0].u.button.text = _(quick_widgets[0].u.button.text);
 207     quick_widgets[1].u.button.text = _(quick_widgets[1].u.button.text);
 208 #endif
 209
 210     /* calculate widget coordinates */
 211     {
 212         int b0_len, b1_len, len;
 213         const int button_gap = 2;
 214
 215         /* preliminary dialog width */
 216         goto_dlg_width = max (goto_dlg_width, str_term_width1 (Quick_input.title) + 4);
 217
 218         /* length of radiobuttons */
 219         for (i = 0; i < num_of_types; i++)
 220             goto_dlg_width = max (goto_dlg_width, str_term_width1 (mc_view_goto_str [i]) + 10);
 221
 222         /* length of buttons */
 223         b0_len = str_term_width1 (quick_widgets[0].u.button.text) + 3;
 224         b1_len = str_term_width1 (quick_widgets[1].u.button.text) + 5; /* default button */
 225         len = b0_len + b1_len + button_gap * 2;
 226
 227         /* dialog width */
 228         Quick_input.xlen = max (goto_dlg_width, len + 6);
 229
 230         /* correct widget coordinates */
 231         for (i = sizeof (quick_widgets)/sizeof (quick_widgets[0]); i > 0; i--)
 232             quick_widgets[i - 1].x_divisions = Quick_input.xlen;
 233
 234         /* input length */
 235         quick_widgets[3].u.input.len = Quick_input.xlen - 6;
 236
 237         /* button positions */
 238         quick_widgets[1].relative_x = Quick_input.xlen/2 - len/2;
 239         quick_widgets[0].relative_x = quick_widgets[1].relative_x + b1_len + button_gap;
 240     }
 241
 242     /* run dialog*/
 243     qd_result = quick_dialog (&Quick_input);
 244
 245     *offset = -1;
 246
 247     /* check input line value */
 248     if ((qd_result != B_CANCEL) && (exp != NULL) && (exp[0] != '\0')) {
 249         int base = (current_goto_type == MC_VIEW_GOTO_OFFSET_HEX) ? 16 : 10;
 250         off_t addr;
 251         char *error;
 252
 253         res = TRUE;
 254
 255         addr = strtoll (exp, &error, base);
 256         if ((*error == '\0') && (addr >= 0)) {
 257             switch (current_goto_type) {
 258             case MC_VIEW_GOTO_LINENUM:
 259                 mcview_coord_to_offset (view, offset, addr, 0);
 260                 break;
 261             case MC_VIEW_GOTO_PERCENT:
 262                 if (addr > 100)
 263                     addr = 100;
 264                 *offset = addr * mcview_get_filesize (view) / 100;
 265                 break;
 266             case MC_VIEW_GOTO_OFFSET_DEC:
 267                 *offset = addr;
 268                 break;
 269             case MC_VIEW_GOTO_OFFSET_HEX:
 270                 *offset = addr;
 271                 break;
 272             default:
 273                 break;
 274             }
 275             *offset = mcview_bol (view, *offset);
 276         }
 277     }
 278
 279     g_free (exp);
 280     return res;
 281 }