src/prefs.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include <gtk/gtk.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <errno.h>
  30
  31 #include "intl.h"
  32 #include "main.h"
  33 #include "prefs.h"
  34 #include "utils.h"
  35 #include "gtkutils.h"
  36
  37 typedef enum
  38 {
  39         DUMMY_PARAM
  40 } DummyEnum;
  41
  42 void prefs_read_config(PrefParam *param, const gchar *label,
  43                        const gchar *rcfile)
  44 {
  45         FILE *fp;
  46         gchar buf[PREFSBUFSIZE];
  47         gchar *rcpath;
  48         gchar *block_label;
  49
  50         g_return_if_fail(param != NULL);
  51         g_return_if_fail(label != NULL);
  52         g_return_if_fail(rcfile != NULL);
  53
  54         debug_print("Reading configuration...\n");
  55
  56         prefs_set_default(param);
  57
  58         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
  59         if ((fp = fopen(rcpath, "rb")) == NULL) {
  60                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
  61                 g_free(rcpath);
  62                 return;
  63         }
  64         g_free(rcpath);
  65
  66         block_label = g_strdup_printf("[%s]", label);
  67
  68         /* search aiming block */
  69         while (fgets(buf, sizeof(buf), fp) != NULL) {
  70                 gint val;
  71
  72                 val = strncmp(buf, block_label, strlen(block_label));
  73                 if (val == 0) {
  74                         debug_print("Found %s\n", block_label);
  75                         break;
  76                 }
  77         }
  78         g_free(block_label);
  79
  80         while (fgets(buf, sizeof(buf), fp) != NULL) {
  81                 strretchomp(buf);
  82                 /* reached next block */
  83                 if (buf[0] == '[') break;
  84
  85                 prefs_config_parse_one_line(param, buf);
  86         }
  87
  88         debug_print("Finished reading configuration.\n");
  89         fclose(fp);
  90 }
  91
  92 void prefs_config_parse_one_line(PrefParam *param, const gchar *buf)
  93 {
  94         gint i;
  95         gint name_len;
  96         const gchar *value;
  97
  98         for (i = 0; param[i].name != NULL; i++) {
  99                 name_len = strlen(param[i].name);
 100                 if (strncasecmp(buf, param[i].name, name_len))
 101                         continue;
 102                 if (buf[name_len] != '=')
 103                         continue;
 104                 value = buf + name_len + 1;
 105                 /* debug_print("%s = %s\n", param[i].name, value); */
 106
 107                 switch (param[i].type) {
 108                 case P_STRING:
 109                         g_free(*((gchar **)param[i].data));
 110                         *((gchar **)param[i].data) =
 111                                 *value ? g_strdup(value) : NULL;
 112                         break;
 113                 case P_INT:
 114                         *((gint *)param[i].data) =
 115                                 (gint)atoi(value);
 116                         break;
 117                 case P_BOOL:
 118                         *((gboolean *)param[i].data) =
 119                                 (*value == '0' || *value == '\0')
 120                                         ? FALSE : TRUE;
 121                         break;
 122                 case P_ENUM:
 123                         *((DummyEnum *)param[i].data) =
 124                                 (DummyEnum)atoi(value);
 125                         break;
 126                 case P_USHORT:
 127                         *((gushort *)param[i].data) =
 128                                 (gushort)atoi(value);
 129                         break;
 130                 default:
 131                         break;
 132                 }
 133         }
 134 }
 135
 136 #define TRY(func) \
 137 if (!(func)) \
 138 { \
 139         g_warning(_("failed to write configuration to file\n")); \
 140         if (orig_fp) fclose(orig_fp); \
 141         prefs_write_close_revert(pfile); \
 142         g_free(rcpath); \
 143         g_free(block_label); \
 144         return; \
 145 } \
 146
 147 void prefs_save_config(PrefParam *param, const gchar *label,
 148                        const gchar *rcfile)
 149 {
 150         FILE *orig_fp;
 151         PrefFile *pfile;
 152         gchar *rcpath;
 153         gchar buf[PREFSBUFSIZE];
 154         gchar *block_label = NULL;
 155         gboolean block_matched = FALSE;
 156
 157         g_return_if_fail(param != NULL);
 158         g_return_if_fail(label != NULL);
 159         g_return_if_fail(rcfile != NULL);
 160
 161         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
 162         if ((orig_fp = fopen(rcpath, "rb")) == NULL) {
 163                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
 164         }
 165
 166         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 167                 g_warning(_("failed to write configuration to file\n"));
 168                 if (orig_fp) fclose(orig_fp);
 169                 g_free(rcpath);
 170                 return;
 171         }
 172
 173         block_label = g_strdup_printf("[%s]", label);
 174
 175         /* search aiming block */
 176         if (orig_fp) {
 177                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 178                         gint val;
 179
 180                         val = strncmp(buf, block_label, strlen(block_label));
 181                         if (val == 0) {
 182                                 debug_print("Found %s\n", block_label);
 183                                 block_matched = TRUE;
 184                                 break;
 185                         } else
 186                                 TRY(fputs(buf, pfile->fp) != EOF);
 187                 }
 188         }
 189
 190         TRY(fprintf(pfile->fp, "%s\n", block_label) > 0);
 191         g_free(block_label);
 192         block_label = NULL;
 193
 194         /* write all param data to file */
 195         TRY(prefs_write_param(param, pfile->fp) == 0);
 196
 197         if (block_matched) {
 198                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 199                         /* next block */
 200                         if (buf[0] == '[') {
 201                                 TRY(fputc('\n', pfile->fp) != EOF &&
 202                                     fputs(buf, pfile->fp)  != EOF);
 203                                 break;
 204                         }
 205                 }
 206                 while (fgets(buf, sizeof(buf), orig_fp) != NULL)
 207                         TRY(fputs(buf, pfile->fp) != EOF);
 208         }
 209
 210         if (orig_fp) fclose(orig_fp);
 211         if (prefs_write_close(pfile) < 0)
 212                 g_warning(_("failed to write configuration to file\n"));
 213         g_free(rcpath);
 214
 215         debug_print("Configuration is saved.\n");
 216 }
 217
 218 gint prefs_write_param(PrefParam *param, FILE *fp)
 219 {
 220         gint i;
 221         gchar buf[PREFSBUFSIZE];
 222
 223         for (i = 0; param[i].name != NULL; i++) {
 224                 switch (param[i].type) {
 225                 case P_STRING:
 226                         g_snprintf(buf, sizeof(buf), "%s=%s\n", param[i].name,
 227                                    *((gchar **)param[i].data) ?
 228                                    *((gchar **)param[i].data) : "");
 229                         break;
 230                 case P_INT:
 231                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 232                                    *((gint *)param[i].data));
 233                         break;
 234                 case P_BOOL:
 235                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 236                                    *((gboolean *)param[i].data));
 237                         break;
 238                 case P_ENUM:
 239                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 240                                    *((DummyEnum *)param[i].data));
 241                         break;
 242                 case P_USHORT:
 243                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 244                                    *((gushort *)param[i].data));
 245                         break;
 246                 default:
 247                         buf[0] = '\0';
 248                 }
 249
 250                 if (buf[0] != '\0') {
 251                         if (fputs(buf, fp) == EOF) {
 252                                 perror("fputs");
 253                                 return -1;
 254                         }
 255                 }
 256         }
 257
 258         return 0;
 259 }
 260
 261 PrefFile *prefs_write_open(const gchar *path)
 262 {
 263         PrefFile *pfile;
 264         gchar *tmppath;
 265         FILE *fp;
 266
 267         g_return_val_if_fail(path != NULL, NULL);
 268
 269         if (prefs_is_readonly(path)) {
 270                 g_warning(_("no permission - %s\n"), path);
 271                 return NULL;
 272         }
 273
 274         tmppath = g_strconcat(path, ".tmp", NULL);
 275         if ((fp = fopen(tmppath, "wb")) == NULL) {
 276                 FILE_OP_ERROR(tmppath, "fopen");
 277                 g_free(tmppath);
 278                 return NULL;
 279         }
 280
 281         if (change_file_mode_rw(fp, tmppath) < 0)
 282                 FILE_OP_ERROR(tmppath, "chmod");
 283
 284         g_free(tmppath);
 285
 286         pfile = g_new(PrefFile, 1);
 287         pfile->fp = fp;
 288         pfile->path = g_strdup(path);
 289
 290         return pfile;
 291 }
 292
 293 gint prefs_write_close(PrefFile *pfile)
 294 {
 295         FILE *fp;
 296         gchar *path;
 297         gchar *tmppath;
 298         gchar *bakpath = NULL;
 299
 300         g_return_val_if_fail(pfile != NULL, -1);
 301
 302         fp = pfile->fp;
 303         path = pfile->path;
 304         g_free(pfile);
 305
 306         tmppath = g_strconcat(path, ".tmp", NULL);
 307         if (fclose(fp) == EOF) {
 308                 FILE_OP_ERROR(tmppath, "fclose");
 309                 unlink(tmppath);
 310                 g_free(path);
 311                 g_free(tmppath);
 312                 return -1;
 313         }
 314
 315         if (is_file_exist(path)) {
 316                 bakpath = g_strconcat(path, ".bak", NULL);
 317                 if (rename(path, bakpath) < 0) {
 318                         FILE_OP_ERROR(path, "rename");
 319                         unlink(tmppath);
 320                         g_free(path);
 321                         g_free(tmppath);
 322                         g_free(bakpath);
 323                         return -1;
 324                 }
 325         }
 326
 327         if (rename(tmppath, path) < 0) {
 328                 FILE_OP_ERROR(tmppath, "rename");
 329                 unlink(tmppath);
 330                 g_free(path);
 331                 g_free(tmppath);
 332                 g_free(bakpath);
 333                 return -1;
 334         }
 335
 336         g_free(path);
 337         g_free(tmppath);
 338         g_free(bakpath);
 339         return 0;
 340 }
 341
 342 gint prefs_write_close_revert(PrefFile *pfile)
 343 {
 344         gchar *tmppath;
 345
 346         g_return_val_if_fail(pfile != NULL, -1);
 347
 348         tmppath = g_strconcat(pfile->path, ".tmp", NULL);
 349         fclose(pfile->fp);
 350         if (unlink(tmppath) < 0) FILE_OP_ERROR(tmppath, "unlink");
 351         g_free(tmppath);
 352         g_free(pfile->path);
 353         g_free(pfile);
 354
 355         return 0;
 356 }
 357
 358 void prefs_set_default(PrefParam *param)
 359 {
 360         gint i;
 361
 362         g_return_if_fail(param != NULL);
 363
 364         for (i = 0; param[i].name != NULL; i++) {
 365                 if (!param[i].data) continue;
 366
 367                 switch (param[i].type) {
 368                 case P_STRING:
 369                         if (param[i].defval != NULL) {
 370                                 if (!strncasecmp(param[i].defval, "ENV_", 4))
 371                                         *((gchar **)param[i].data) =
 372                                                 g_strdup(g_getenv(param[i].defval + 4));
 373                                 else if (param[i].defval[0] == '~')
 374                                         *((gchar **)param[i].data) =
 375                                                 g_strconcat(get_home_dir(),
 376                                                             param[i].defval + 1,
 377                                                             NULL);
 378                                 else if (param[i].defval[0] != '\0')
 379                                         *((gchar **)param[i].data) =
 380                                                 g_strdup(param[i].defval);
 381                                 else
 382                                         *((gchar **)param[i].data) = NULL;
 383                         } else
 384                                 *((gchar **)param[i].data) = NULL;
 385                         break;
 386                 case P_INT:
 387                         if (param[i].defval != NULL)
 388                                 *((gint *)param[i].data) =
 389                                         (gint)atoi(param[i].defval);
 390                         else
 391                                 *((gint *)param[i].data) = 0;
 392                         break;
 393                 case P_BOOL:
 394                         if (param[i].defval != NULL) {
 395                                 if (!strcasecmp(param[i].defval, "TRUE"))
 396                                         *((gboolean *)param[i].data) = TRUE;
 397                                 else
 398                                         *((gboolean *)param[i].data) =
 399                                                 atoi(param[i].defval) ? TRUE : FALSE;
 400                         } else
 401                                 *((gboolean *)param[i].data) = FALSE;
 402                         break;
 403                 case P_ENUM:
 404                         if (param[i].defval != NULL)
 405                                 *((DummyEnum*)param[i].data) =
 406                                         (DummyEnum)atoi(param[i].defval);
 407                         else
 408                                 *((DummyEnum *)param[i].data) = 0;
 409                         break;
 410                 case P_USHORT:
 411                         if (param[i].defval != NULL)
 412                                 *((gushort *)param[i].data) =
 413                                         (gushort)atoi(param[i].defval);
 414                         else
 415                                 *((gushort *)param[i].data) = 0;
 416                         break;
 417                 default:
 418                         break;
 419                 }
 420         }
 421 }
 422
 423 void prefs_free(PrefParam *param)
 424 {
 425         gint i;
 426
 427         g_return_if_fail(param != NULL);
 428
 429         for (i = 0; param[i].name != NULL; i++) {
 430                 if (!param[i].data) continue;
 431
 432                 switch (param[i].type) {
 433                 case P_STRING:
 434                         g_free(*((gchar **)param[i].data));
 435                         break;
 436                 default:
 437                         break;
 438                 }
 439         }
 440 }
 441
 442 void prefs_dialog_create(PrefsDialog *dialog)
 443 {
 444         GtkWidget *window;
 445         GtkWidget *vbox;
 446         GtkWidget *notebook;
 447
 448         GtkWidget *confirm_area;
 449         GtkWidget *ok_btn;
 450         GtkWidget *cancel_btn;
 451         GtkWidget *apply_btn;
 452
 453         g_return_if_fail(dialog != NULL);
 454
 455         window = gtk_window_new (GTK_WINDOW_DIALOG);
 456         gtk_container_set_border_width (GTK_CONTAINER (window), 8);
 457         gtk_window_position (GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 458         gtk_window_set_modal (GTK_WINDOW (window), TRUE);
 459         gtk_window_set_policy (GTK_WINDOW(window), FALSE, TRUE, FALSE);
 460
 461         vbox = gtk_vbox_new (FALSE, 6);
 462         gtk_widget_show(vbox);
 463         gtk_container_add (GTK_CONTAINER (window), vbox);
 464
 465         notebook = gtk_notebook_new ();
 466         gtk_widget_show(notebook);
 467         gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
 468         gtk_container_set_border_width (GTK_CONTAINER (notebook), 2);
 469         /* GTK_WIDGET_UNSET_FLAGS (notebook, GTK_CAN_FOCUS); */
 470         gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
 471
 472         gtk_notebook_popup_enable (GTK_NOTEBOOK (notebook));
 473
 474         gtkut_button_set_create(&confirm_area,
 475                                 &ok_btn,        _("OK"),
 476                                 &cancel_btn,    _("Cancel"),
 477                                 &apply_btn,     _("Apply"));
 478         gtk_widget_show(confirm_area);
 479         gtk_box_pack_end (GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 480         gtk_widget_grab_default(ok_btn);
 481
 482         dialog->window     = window;
 483         dialog->notebook   = notebook;
 484         dialog->ok_btn     = ok_btn;
 485         dialog->cancel_btn = cancel_btn;
 486         dialog->apply_btn  = apply_btn;
 487 }
 488
 489 void prefs_dialog_destroy(PrefsDialog *dialog)
 490 {
 491         gtk_widget_destroy(dialog->window);
 492         dialog->window     = NULL;
 493         dialog->notebook   = NULL;
 494         dialog->ok_btn     = NULL;
 495         dialog->cancel_btn = NULL;
 496         dialog->apply_btn  = NULL;
 497 }
 498
 499 void prefs_button_toggled(GtkToggleButton *toggle_btn, GtkWidget *widget)
 500 {
 501         gboolean is_active;
 502
 503         is_active = gtk_toggle_button_get_active(toggle_btn);
 504         gtk_widget_set_sensitive(widget, is_active);
 505 }
 506
 507 void prefs_set_dialog(PrefParam *param)
 508 {
 509         gint i;
 510
 511         for (i = 0; param[i].name != NULL; i++) {
 512                 if (param[i].widget_set_func)
 513                         param[i].widget_set_func(&param[i]);
 514         }
 515 }
 516
 517 void prefs_set_data_from_dialog(PrefParam *param)
 518 {
 519         gint i;
 520
 521         for (i = 0; param[i].name != NULL; i++) {
 522                 if (param[i].data_set_func)
 523                         param[i].data_set_func(&param[i]);
 524         }
 525 }
 526
 527 void prefs_set_dialog_to_default(PrefParam *param)
 528 {
 529         gint       i;
 530         PrefParam  tmpparam;
 531         gchar     *str_data = NULL;
 532         gint       int_data;
 533         gushort    ushort_data;
 534         gboolean   bool_data;
 535         DummyEnum  enum_data;
 536
 537         for (i = 0; param[i].name != NULL; i++) {
 538                 if (!param[i].widget_set_func) continue;
 539
 540                 tmpparam = param[i];
 541
 542                 switch (tmpparam.type) {
 543                 case P_STRING:
 544                         if (tmpparam.defval) {
 545                                 if (!strncasecmp(tmpparam.defval, "ENV_", 4)) {
 546                                         str_data = g_strdup(g_getenv(param[i].defval + 4));
 547                                         tmpparam.data = &str_data;
 548                                         break;
 549                                 } else if (tmpparam.defval[0] == '~') {
 550                                         str_data =
 551                                                 g_strconcat(get_home_dir(),
 552                                                             param[i].defval + 1,
 553                                                             NULL);
 554                                         tmpparam.data = &str_data;
 555                                         break;
 556                                 }
 557                         }
 558                         tmpparam.data = &tmpparam.defval;
 559                         break;
 560                 case P_INT:
 561                         if (tmpparam.defval)
 562                                 int_data = atoi(tmpparam.defval);
 563                         else
 564                                 int_data = 0;
 565                         tmpparam.data = &int_data;
 566                         break;
 567                 case P_USHORT:
 568                         if (tmpparam.defval)
 569                                 ushort_data = atoi(tmpparam.defval);
 570                         else
 571                                 ushort_data = 0;
 572                         tmpparam.data = &ushort_data;
 573                         break;
 574                 case P_BOOL:
 575                         if (tmpparam.defval) {
 576                                 if (!strcasecmp(tmpparam.defval, "TRUE"))
 577                                         bool_data = TRUE;
 578                                 else
 579                                         bool_data = atoi(tmpparam.defval)
 580                                                 ? TRUE : FALSE;
 581                         } else
 582                                 bool_data = FALSE;
 583                         tmpparam.data = &bool_data;
 584                         break;
 585                 case P_ENUM:
 586                         if (tmpparam.defval)
 587                                 enum_data = (DummyEnum)atoi(tmpparam.defval);
 588                         else
 589                                 enum_data = 0;
 590                         tmpparam.data = &enum_data;
 591                         break;
 592                 case P_OTHER:
 593                         break;
 594                 }
 595                 tmpparam.widget_set_func(&tmpparam);
 596                 g_free(str_data);
 597                 str_data = NULL;
 598         }
 599 }
 600
 601 void prefs_set_data_from_entry(PrefParam *pparam)
 602 {
 603         gchar **str, *entry_str;
 604
 605         g_return_if_fail(*pparam->widget != NULL);
 606
 607         entry_str = gtk_entry_get_text(GTK_ENTRY(*pparam->widget));
 608
 609         switch (pparam->type) {
 610         case P_STRING:
 611                 str = (gchar **)pparam->data;
 612                 g_free(*str);
 613                 *str = entry_str[0] ? g_strdup(entry_str) : NULL;
 614                 break;
 615         case P_USHORT:
 616                 *((gushort *)pparam->data) = atoi(entry_str);
 617                 break;
 618         case P_INT:
 619                 *((gint *)pparam->data) = atoi(entry_str);
 620                 break;
 621         default:
 622                 g_warning("Invalid PrefType for GtkEntry widget: %d\n",
 623                           pparam->type);
 624         }
 625 }
 626
 627 void prefs_set_entry(PrefParam *pparam)
 628 {
 629         gchar **str;
 630
 631         g_return_if_fail(*pparam->widget != NULL);
 632
 633         switch (pparam->type) {
 634         case P_STRING:
 635                 str = (gchar **)pparam->data;
 636                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 637                                    *str ? *str : "");
 638                 break;
 639         case P_INT:
 640                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 641                                    itos(*((gint *)pparam->data)));
 642                 break;
 643         case P_USHORT:
 644                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 645                                    itos(*((gushort *)pparam->data)));
 646                 break;
 647         default:
 648                 g_warning("Invalid PrefType for GtkEntry widget: %d\n",
 649                           pparam->type);
 650         }
 651 }
 652
 653 void prefs_set_data_from_text(PrefParam *pparam)
 654 {
 655         gchar **str;
 656         gchar *text, *tp;
 657         gchar *tmp, *tmpp;
 658
 659         g_return_if_fail(*pparam->widget != NULL);
 660
 661         switch (pparam->type) {
 662         case P_STRING:
 663                 str = (gchar **)pparam->data;
 664                 g_free(*str);
 665                 tp = text = gtk_editable_get_chars
 666                         (GTK_EDITABLE(*pparam->widget), 0, -1);
 667                 if (text[0] == '\0') {
 668                         *str = NULL;
 669                         g_free(text);
 670                         break;
 671                 }
 672
 673                 Xalloca(tmpp = tmp, strlen(text) * 2 + 1,
 674                         { *str = NULL; break; });
 675                 while (*tp) {
 676                         if (*tp == '\n') {
 677                                 *tmpp++ = '\\';
 678                                 *tmpp++ = 'n';
 679                                 tp++;
 680                         } else
 681                                 *tmpp++ = *tp++;
 682                 }
 683                 *tmpp = '\0';
 684                 *str = g_strdup(tmp);
 685                 g_free(text);
 686                 break;
 687         default:
 688                 g_warning("Invalid PrefType for GtkText widget: %d\n",
 689                           pparam->type);
 690         }
 691 }
 692
 693 void prefs_set_text(PrefParam *pparam)
 694 {
 695         gchar *buf, *sp, *bufp;
 696         gchar **str;
 697         GtkText *text;
 698
 699         g_return_if_fail(*pparam->widget != NULL);
 700
 701         switch (pparam->type) {
 702         case P_STRING:
 703                 str = (gchar **)pparam->data;
 704                 if (*str) {
 705                         bufp = buf = alloca(strlen(*str) + 1);
 706                         if (!buf) buf = "";
 707                         else {
 708                                 sp = *str;
 709                                 while (*sp) {
 710                                         if (*sp == '\\' && *(sp + 1) == 'n') {
 711                                                 *bufp++ = '\n';
 712                                                 sp += 2;
 713                                         } else
 714                                                 *bufp++ = *sp++;
 715                                 }
 716                                 *bufp = '\0';
 717                         }
 718                 } else
 719                         buf = "";
 720
 721                 text = GTK_TEXT(*pparam->widget);
 722                 gtk_text_set_point(text, 0);
 723                 gtk_text_forward_delete(text, gtk_text_get_length(text));
 724                 gtk_text_set_point(text, 0);
 725                 gtk_text_insert(text, NULL, NULL, NULL, buf, -1);
 726                 break;
 727         default:
 728                 g_warning("Invalid PrefType for GtkText widget: %d\n",
 729                           pparam->type);
 730         }
 731 }
 732
 733 void prefs_set_data_from_toggle(PrefParam *pparam)
 734 {
 735         g_return_if_fail(pparam->type == P_BOOL);
 736         g_return_if_fail(*pparam->widget != NULL);
 737
 738         *((gboolean *)pparam->data) =
 739                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(*pparam->widget));
 740 }
 741
 742 void prefs_set_toggle(PrefParam *pparam)
 743 {
 744         g_return_if_fail(pparam->type == P_BOOL);
 745         g_return_if_fail(*pparam->widget != NULL);
 746
 747         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(*pparam->widget),
 748                                      *((gboolean *)pparam->data));
 749 }
 750
 751 void prefs_set_data_from_spinbtn(PrefParam *pparam)
 752 {
 753         g_return_if_fail(*pparam->widget != NULL);
 754
 755         switch (pparam->type) {
 756         case P_INT:
 757                 *((gint *)pparam->data) =
 758                         gtk_spin_button_get_value_as_int
 759                         (GTK_SPIN_BUTTON(*pparam->widget));
 760                 break;
 761         case P_USHORT:
 762                 *((gushort *)pparam->data) =
 763                         (gushort)gtk_spin_button_get_value_as_int
 764                         (GTK_SPIN_BUTTON(*pparam->widget));
 765                 break;
 766         default:
 767                 g_warning("Invalid PrefType for GtkSpinButton widget: %d\n",
 768                           pparam->type);
 769         }
 770 }
 771
 772 void prefs_set_spinbtn(PrefParam *pparam)
 773 {
 774         g_return_if_fail(*pparam->widget != NULL);
 775
 776         switch (pparam->type) {
 777         case P_INT:
 778                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 779                                           (gfloat)*((gint *)pparam->data));
 780                 break;
 781         case P_USHORT:
 782                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 783                                           (gfloat)*((gushort *)pparam->data));
 784                 break;
 785         default:
 786                 g_warning("Invalid PrefType for GtkSpinButton widget: %d\n",
 787                           pparam->type);
 788         }
 789 }
 790
 791 gboolean prefs_is_readonly(const gchar * path)
 792 {
 793         if (path == NULL)
 794                 return TRUE;
 795
 796         return (access(path, W_OK) != 0 && access(path, F_OK) == 0);
 797 }
 798
 799 gboolean prefs_rc_is_readonly(const gchar * rcfile)
 800 {
 801         gboolean result;
 802         gchar * rcpath;
 803
 804         if (rcfile == NULL)
 805                 return TRUE;
 806
 807         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
 808         result = prefs_is_readonly(rcpath);
 809         g_free(rcpath);
 810
 811         return result;
 812 }