src/prefs_gtk.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include <glib.h>
  25 #include <glib/gi18n.h>
  26 #include <gtk/gtk.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32
  33 #include "main.h"
  34 #include "prefs.h"
  35 #include "prefs_gtk.h"
  36 #include "prefs_common.h"
  37 #include "utils.h"
  38 #include "gtkutils.h"
  39 #include "passcrypt.h"
  40 #include "base64.h"
  41 #include "codeconv.h"
  42
  43 #define CL(x)   (((gulong) (x) >> (gulong) 8) & 0xFFUL)
  44 #define RGB_FROM_GDK_COLOR(c) \
  45         ((CL(c.red)   << (gulong) 16) | \
  46          (CL(c.green) << (gulong)  8) | \
  47          (CL(c.blue)))
  48
  49 typedef enum
  50 {
  51         DUMMY_PARAM
  52 } DummyEnum;
  53
  54 void prefs_read_config(PrefParam *param, const gchar *label,
  55                        const gchar *rcfile, const gchar *encoding)
  56 {
  57         FILE *fp;
  58         gchar buf[PREFSBUFSIZE];
  59         gchar *block_label;
  60
  61         g_return_if_fail(param != NULL);
  62         g_return_if_fail(label != NULL);
  63         g_return_if_fail(rcfile != NULL);
  64
  65         debug_print("Reading configuration...\n");
  66
  67         prefs_set_default(param);
  68
  69         if ((fp = g_fopen(rcfile, "rb")) == NULL) {
  70                 if (ENOENT != errno) FILE_OP_ERROR(rcfile, "fopen");
  71                 return;
  72         }
  73
  74         block_label = g_strdup_printf("[%s]", label);
  75
  76         /* search aiming block */
  77         while (fgets(buf, sizeof(buf), fp) != NULL) {
  78                 gint val;
  79
  80                 if (encoding) {
  81                         gchar *conv_str;
  82
  83                         conv_str = conv_codeset_strdup
  84                                 (buf, encoding, CS_INTERNAL);
  85                         if (!conv_str)
  86                                 conv_str = g_strdup(buf);
  87                         val = strncmp
  88                                 (conv_str, block_label, strlen(block_label));
  89                         g_free(conv_str);
  90                 } else
  91                         val = strncmp(buf, block_label, strlen(block_label));
  92                 if (val == 0) {
  93                         debug_print("Found %s\n", block_label);
  94                         break;
  95                 }
  96         }
  97         g_free(block_label);
  98
  99         while (fgets(buf, sizeof(buf), fp) != NULL) {
 100                 strretchomp(buf);
 101                 /* reached next block */
 102                 if (buf[0] == '[') break;
 103
 104                 if (encoding) {
 105                         gchar *conv_str;
 106
 107                         conv_str = conv_codeset_strdup
 108                                 (buf, encoding, CS_INTERNAL);
 109                         if (!conv_str)
 110                                 conv_str = g_strdup(buf);
 111                         prefs_config_parse_one_line(param, conv_str);
 112                         g_free(conv_str);
 113                 } else
 114                         prefs_config_parse_one_line(param, buf);
 115         }
 116
 117         debug_print("Finished reading configuration.\n");
 118         fclose(fp);
 119 }
 120
 121 void prefs_config_parse_one_line(PrefParam *param, const gchar *buf)
 122 {
 123         gint i;
 124         gint name_len;
 125         const gchar *value;
 126         GdkColor color;
 127
 128         for (i = 0; param[i].name != NULL; i++) {
 129                 name_len = strlen(param[i].name);
 130                 if (g_ascii_strncasecmp(buf, param[i].name, name_len))
 131                         continue;
 132                 if (buf[name_len] != '=')
 133                         continue;
 134                 value = buf + name_len + 1;
 135                 /* debug_print("%s = %s\n", param[i].name, value); */
 136
 137                 switch (param[i].type) {
 138                 case P_STRING:
 139                 {
 140                         gchar *tmp;
 141
 142                         tmp = *value ?
 143                                 conv_codeset_strdup(value,
 144                                                     conv_get_locale_charset_str(),
 145                                                     CS_UTF_8)
 146                                 : g_strdup("");
 147                         if (!tmp) {
 148                                 g_warning("failed to convert character set.");
 149                                 tmp = g_strdup(value);
 150                         }
 151                         g_free(*((gchar **)param[i].data));
 152                         *((gchar **)param[i].data) = tmp;
 153                         break;
 154                 }
 155                 case P_INT:
 156                         *((gint *)param[i].data) =
 157                                 (gint)atoi(value);
 158                         break;
 159                 case P_BOOL:
 160                         *((gboolean *)param[i].data) =
 161                                 (*value == '0' || *value == '\0')
 162                                         ? FALSE : TRUE;
 163                         break;
 164                 case P_ENUM:
 165                         *((DummyEnum *)param[i].data) =
 166                                 (DummyEnum)atoi(value);
 167                         break;
 168                 case P_USHORT:
 169                         *((gushort *)param[i].data) =
 170                                 (gushort)atoi(value);
 171                         break;
 172                 case P_COLOR:
 173                         if (gdk_color_parse(value, &color))
 174                                 *((gulong *)param[i].data) = RGB_FROM_GDK_COLOR(color);
 175                         else
 176                                 /* be compatible and accept ints */
 177                                 *((gulong *)param[i].data) = strtoul(value, 0, 10);
 178                         break;
 179                 case P_PASSWORD:
 180                         g_free(*((gchar **)param[i].data));
 181                         if (value[0] == '!') {
 182                                 gchar tmp[1024];
 183                                 gint len;
 184
 185                                 len = base64_decode(tmp, &value[1], strlen(value) - 1);
 186                                 passcrypt_decrypt(tmp, len);
 187                                 tmp[len] = '\0';
 188                                 *((gchar **)param[i].data) =
 189                                         *tmp ? g_strdup(tmp) : NULL;
 190                         } else {
 191                                 *((gchar **)param[i].data) =
 192                                         *value ? g_strdup(value) : NULL;
 193                         }
 194                         break;
 195                 default:
 196                         break;
 197                 }
 198         }
 199 }
 200
 201 #define TRY(func) \
 202 if (!(func)) \
 203 { \
 204         g_warning("failed to write configuration to file\n"); \
 205         if (orig_fp) fclose(orig_fp); \
 206         prefs_file_close_revert(pfile); \
 207         g_free(rcpath); \
 208         g_free(block_label); \
 209         return; \
 210 } \
 211
 212 void prefs_write_config(PrefParam *param, const gchar *label,
 213                         const gchar *rcfile)
 214 {
 215         FILE *orig_fp;
 216         PrefFile *pfile;
 217         gchar *rcpath;
 218         gchar buf[PREFSBUFSIZE];
 219         gchar *block_label = NULL;
 220         gboolean block_matched = FALSE;
 221
 222         g_return_if_fail(param != NULL);
 223         g_return_if_fail(label != NULL);
 224         g_return_if_fail(rcfile != NULL);
 225
 226         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
 227         if ((orig_fp = g_fopen(rcpath, "rb")) == NULL) {
 228                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
 229         }
 230
 231         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 232                 g_warning("failed to write configuration to file\n");
 233                 if (orig_fp) fclose(orig_fp);
 234                 g_free(rcpath);
 235                 return;
 236         }
 237
 238         block_label = g_strdup_printf("[%s]", label);
 239
 240         /* search aiming block */
 241         if (orig_fp) {
 242                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 243                         gint val;
 244
 245                         val = strncmp(buf, block_label, strlen(block_label));
 246                         if (val == 0) {
 247                                 debug_print("Found %s\n", block_label);
 248                                 block_matched = TRUE;
 249                                 break;
 250                         } else
 251                                 TRY(fputs(buf, pfile->fp) != EOF);
 252                 }
 253         }
 254
 255         TRY(fprintf(pfile->fp, "%s\n", block_label) > 0);
 256         g_free(block_label);
 257         block_label = NULL;
 258
 259         /* write all param data to file */
 260         TRY(prefs_write_param(param, pfile->fp) == 0);
 261
 262         if (block_matched) {
 263                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 264                         /* next block */
 265                         if (buf[0] == '[') {
 266                                 TRY(fputc('\n', pfile->fp) != EOF &&
 267                                     fputs(buf, pfile->fp)  != EOF);
 268                                 break;
 269                         }
 270                 }
 271                 while (fgets(buf, sizeof(buf), orig_fp) != NULL)
 272                         TRY(fputs(buf, pfile->fp) != EOF);
 273         }
 274
 275         if (orig_fp) fclose(orig_fp);
 276         if (prefs_file_close(pfile) < 0)
 277                 g_warning("failed to write configuration to file\n");
 278         g_free(rcpath);
 279
 280         debug_print("Configuration is saved.\n");
 281 }
 282
 283 gint prefs_write_param(PrefParam *param, FILE *fp)
 284 {
 285         gint i;
 286         gchar buf[PREFSBUFSIZE];
 287
 288         for (i = 0; param[i].name != NULL; i++) {
 289                 switch (param[i].type) {
 290                 case P_STRING:
 291                 {
 292                         gchar *tmp = NULL;
 293
 294                         if (*((gchar **)param[i].data)) {
 295                                 tmp = conv_codeset_strdup(*((gchar **)param[i].data),
 296                                                           CS_UTF_8,
 297                                                           conv_get_locale_charset_str());
 298                                 if (!tmp)
 299                                         tmp = g_strdup(*((gchar **)param[i].data));
 300                         }
 301
 302                         g_snprintf(buf, sizeof(buf), "%s=%s\n", param[i].name,
 303                                    tmp ? tmp : "");
 304
 305                         g_free(tmp);
 306                         break;
 307                 }
 308                 case P_INT:
 309                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 310                                    *((gint *)param[i].data));
 311                         break;
 312                 case P_BOOL:
 313                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 314                                    *((gboolean *)param[i].data));
 315                         break;
 316                 case P_ENUM:
 317                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 318                                    *((DummyEnum *)param[i].data));
 319                         break;
 320                 case P_USHORT:
 321                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 322                                    *((gushort *)param[i].data));
 323                         break;
 324                 case P_COLOR:
 325                         g_snprintf(buf, sizeof buf,  "%s=#%6.6lx\n", param[i].name,
 326                                    *((gulong *) param[i].data));
 327                         break;
 328                 case P_PASSWORD:
 329                         {
 330                                 gchar *tmp = NULL, tmp2[1024] = {0};
 331
 332                                 tmp = *((gchar **)param[i].data);
 333                                 if (tmp) {
 334                                         gint len;
 335
 336                                         tmp = g_strdup(tmp);
 337                                         len = strlen(tmp);
 338                                         passcrypt_encrypt(tmp, len);
 339                                         base64_encode(tmp2, tmp, len);
 340                                         g_free(tmp);
 341                                         tmp = tmp2;
 342                                 }
 343                                 g_snprintf(buf, sizeof(buf), "%s=!%s\n", param[i].name,
 344                                            tmp ?
 345                                            tmp : "");
 346                         }
 347                         break;
 348                 default:
 349                         /* unrecognized, fail */
 350                         debug_print("Unrecognized parameter type\n");
 351                         return -1;
 352                 }
 353
 354                 if (buf[0] != '\0') {
 355                         if (fputs(buf, fp) == EOF) {
 356                                 perror("fputs");
 357                                 return -1;
 358                         }
 359                 }
 360         }
 361
 362         return 0;
 363 }
 364
 365 void prefs_set_default(PrefParam *param)
 366 {
 367         gint i;
 368         GdkColor color;
 369
 370         g_return_if_fail(param != NULL);
 371
 372         for (i = 0; param[i].name != NULL; i++) {
 373                 if (!param[i].data) continue;
 374
 375                 switch (param[i].type) {
 376                 case P_STRING:
 377                 case P_PASSWORD:
 378                         g_free(*((gchar **)param[i].data));
 379                         if (param[i].defval != NULL) {
 380                                 if (!strncasecmp(param[i].defval, "ENV_", 4)) {
 381                                         const gchar *envstr;
 382                                         gchar *tmp;
 383
 384                                         envstr = g_getenv(param[i].defval + 4);
 385                                         tmp = envstr && *envstr ?
 386                                                 conv_codeset_strdup(envstr,
 387                                                                     conv_get_locale_charset_str(),
 388                                                                     CS_UTF_8)
 389                                                 : g_strdup("");
 390                                         if (!tmp) {
 391                                                 g_warning("faild to convert character set.");
 392                                                 tmp = g_strdup(envstr);
 393                                         }
 394                                         *((gchar **)param[i].data) = tmp;
 395                                 } else if (param[i].defval[0] == '~')
 396                                         *((gchar **)param[i].data) =
 397                                                 g_strconcat(get_home_dir(),
 398                                                             param[i].defval + 1,
 399                                                             NULL);
 400                                 else if (param[i].defval[0] != '\0')
 401                                         *((gchar **)param[i].data) =
 402                                                 g_strdup(param[i].defval);
 403                                 else
 404                                         *((gchar **)param[i].data) = NULL;
 405                         } else
 406                                 *((gchar **)param[i].data) = NULL;
 407                         break;
 408                 case P_INT:
 409                         if (param[i].defval != NULL)
 410                                 *((gint *)param[i].data) =
 411                                         (gint)atoi(param[i].defval);
 412                         else
 413                                 *((gint *)param[i].data) = 0;
 414                         break;
 415                 case P_BOOL:
 416                         if (param[i].defval != NULL) {
 417                                 if (!g_ascii_strcasecmp(param[i].defval, "TRUE"))
 418                                         *((gboolean *)param[i].data) = TRUE;
 419                                 else
 420                                         *((gboolean *)param[i].data) =
 421                                                 atoi(param[i].defval) ? TRUE : FALSE;
 422                         } else
 423                                 *((gboolean *)param[i].data) = FALSE;
 424                         break;
 425                 case P_ENUM:
 426                         if (param[i].defval != NULL)
 427                                 *((DummyEnum*)param[i].data) =
 428                                         (DummyEnum)atoi(param[i].defval);
 429                         else
 430                                 *((DummyEnum *)param[i].data) = 0;
 431                         break;
 432                 case P_USHORT:
 433                         if (param[i].defval != NULL)
 434                                 *((gushort *)param[i].data) =
 435                                         (gushort)atoi(param[i].defval);
 436                         else
 437                                 *((gushort *)param[i].data) = 0;
 438                         break;
 439                 case P_COLOR:
 440                         if (param[i].defval != NULL && gdk_color_parse(param[i].defval, &color))
 441                                 *((gulong *)param[i].data) =
 442                                         RGB_FROM_GDK_COLOR(color);
 443                         else if (param[i].defval)
 444                                 /* be compatible and accept ints */
 445                                 *((gulong *)param[i].data) = strtoul(param[i].defval, 0, 10);
 446                         else
 447                                 *((gulong *)param[i].data) = 0;
 448                         break;
 449                 default:
 450                         break;
 451                 }
 452         }
 453 }
 454
 455 void prefs_free(PrefParam *param)
 456 {
 457         gint i;
 458
 459         g_return_if_fail(param != NULL);
 460
 461         for (i = 0; param[i].name != NULL; i++) {
 462                 if (!param[i].data) continue;
 463
 464                 switch (param[i].type) {
 465                 case P_STRING:
 466                 case P_PASSWORD:
 467                         g_free(*((gchar **)param[i].data));
 468                         break;
 469                 default:
 470                         break;
 471                 }
 472         }
 473 }
 474
 475 void prefs_dialog_create(PrefsDialog *dialog)
 476 {
 477         GtkWidget *window;
 478         GtkWidget *vbox;
 479         GtkWidget *notebook;
 480
 481         GtkWidget *confirm_area;
 482         GtkWidget *ok_btn;
 483         GtkWidget *cancel_btn;
 484         GtkWidget *apply_btn;
 485
 486         g_return_if_fail(dialog != NULL);
 487
 488         window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 489         gtk_container_set_border_width (GTK_CONTAINER (window), 8);
 490         gtk_window_set_position (GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 491         gtk_window_set_modal (GTK_WINDOW (window), TRUE);
 492         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
 493
 494         vbox = gtk_vbox_new (FALSE, 6);
 495         gtk_widget_show(vbox);
 496         gtk_container_add (GTK_CONTAINER (window), vbox);
 497
 498         notebook = gtk_notebook_new ();
 499         gtk_widget_show(notebook);
 500         gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
 501         gtk_container_set_border_width (GTK_CONTAINER (notebook), 2);
 502         /* GTK_WIDGET_UNSET_FLAGS (notebook, GTK_CAN_FOCUS); */
 503         gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
 504
 505         gtk_notebook_popup_enable (GTK_NOTEBOOK (notebook));
 506
 507         gtkut_stock_button_set_create(&confirm_area,
 508                                       &ok_btn, GTK_STOCK_OK,
 509                                       &cancel_btn, GTK_STOCK_CANCEL,
 510                                       &apply_btn, GTK_STOCK_APPLY);
 511         gtk_widget_show(confirm_area);
 512         gtk_box_pack_end (GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 513         gtk_widget_grab_default(ok_btn);
 514
 515         dialog->window     = window;
 516         dialog->notebook   = notebook;
 517         dialog->ok_btn     = ok_btn;
 518         dialog->cancel_btn = cancel_btn;
 519         dialog->apply_btn  = apply_btn;
 520 }
 521
 522 void prefs_dialog_destroy(PrefsDialog *dialog)
 523 {
 524         gtk_widget_destroy(dialog->window);
 525         dialog->window     = NULL;
 526         dialog->notebook   = NULL;
 527         dialog->ok_btn     = NULL;
 528         dialog->cancel_btn = NULL;
 529         dialog->apply_btn  = NULL;
 530 }
 531
 532 void prefs_button_toggled(GtkToggleButton *toggle_btn, GtkWidget *widget)
 533 {
 534         gboolean is_active;
 535
 536         is_active = gtk_toggle_button_get_active(toggle_btn);
 537         gtk_widget_set_sensitive(widget, is_active);
 538 }
 539
 540 void prefs_set_dialog(PrefParam *param)
 541 {
 542         gint i;
 543
 544         for (i = 0; param[i].name != NULL; i++) {
 545                 if (param[i].widget_set_func)
 546                         param[i].widget_set_func(&param[i]);
 547         }
 548 }
 549
 550 void prefs_set_data_from_dialog(PrefParam *param)
 551 {
 552         gint i;
 553
 554         for (i = 0; param[i].name != NULL; i++) {
 555                 if (param[i].data_set_func)
 556                         param[i].data_set_func(&param[i]);
 557         }
 558 }
 559
 560 void prefs_set_dialog_to_default(PrefParam *param)
 561 {
 562         gint       i;
 563         PrefParam  tmpparam;
 564         gchar     *str_data = NULL;
 565         gint       int_data;
 566         gushort    ushort_data;
 567         gboolean   bool_data;
 568         DummyEnum  enum_data;
 569
 570         for (i = 0; param[i].name != NULL; i++) {
 571                 if (!param[i].widget_set_func) continue;
 572
 573                 tmpparam = param[i];
 574
 575                 switch (tmpparam.type) {
 576                 case P_STRING:
 577                 case P_PASSWORD:
 578                         if (tmpparam.defval) {
 579                                 if (!g_ascii_strncasecmp(tmpparam.defval, "ENV_", 4)) {
 580                                         str_data = g_strdup(g_getenv(param[i].defval + 4));
 581                                         tmpparam.data = &str_data;
 582                                         break;
 583                                 } else if (tmpparam.defval[0] == '~') {
 584                                         str_data =
 585                                                 g_strconcat(get_home_dir(),
 586                                                             param[i].defval + 1,
 587                                                             NULL);
 588                                         tmpparam.data = &str_data;
 589                                         break;
 590                                 }
 591                         }
 592                         tmpparam.data = &tmpparam.defval;
 593                         break;
 594                 case P_INT:
 595                         if (tmpparam.defval)
 596                                 int_data = atoi(tmpparam.defval);
 597                         else
 598                                 int_data = 0;
 599                         tmpparam.data = &int_data;
 600                         break;
 601                 case P_USHORT:
 602                         if (tmpparam.defval)
 603                                 ushort_data = atoi(tmpparam.defval);
 604                         else
 605                                 ushort_data = 0;
 606                         tmpparam.data = &ushort_data;
 607                         break;
 608                 case P_BOOL:
 609                         if (tmpparam.defval) {
 610                                 if (!g_ascii_strcasecmp(tmpparam.defval, "TRUE"))
 611                                         bool_data = TRUE;
 612                                 else
 613                                         bool_data = atoi(tmpparam.defval)
 614                                                 ? TRUE : FALSE;
 615                         } else
 616                                 bool_data = FALSE;
 617                         tmpparam.data = &bool_data;
 618                         break;
 619                 case P_ENUM:
 620                         if (tmpparam.defval)
 621                                 enum_data = (DummyEnum)atoi(tmpparam.defval);
 622                         else
 623                                 enum_data = 0;
 624                         tmpparam.data = &enum_data;
 625                         break;
 626                 case P_OTHER:
 627                 default:
 628                         break;
 629                 }
 630                 tmpparam.widget_set_func(&tmpparam);
 631                 g_free(str_data);
 632                 str_data = NULL;
 633         }
 634 }
 635
 636 void prefs_set_data_from_entry(PrefParam *pparam)
 637 {
 638         gchar **str;
 639         const gchar *entry_str;
 640
 641         g_return_if_fail(*pparam->widget != NULL);
 642
 643         entry_str = gtk_entry_get_text(GTK_ENTRY(*pparam->widget));
 644
 645         switch (pparam->type) {
 646         case P_STRING:
 647         case P_PASSWORD:
 648                 str = (gchar **)pparam->data;
 649                 g_free(*str);
 650                 *str = entry_str[0] ? g_strdup(entry_str) : NULL;
 651                 break;
 652         case P_USHORT:
 653                 *((gushort *)pparam->data) = atoi(entry_str);
 654                 break;
 655         case P_INT:
 656                 *((gint *)pparam->data) = atoi(entry_str);
 657                 break;
 658         default:
 659                 g_warning("Invalid PrefType for GtkEntry widget: %d\n",
 660                           pparam->type);
 661         }
 662 }
 663
 664 void prefs_set_entry(PrefParam *pparam)
 665 {
 666         gchar **str;
 667
 668         g_return_if_fail(*pparam->widget != NULL);
 669
 670         switch (pparam->type) {
 671         case P_STRING:
 672         case P_PASSWORD:
 673                 str = (gchar **)pparam->data;
 674                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 675                                    *str ? *str : "");
 676                 break;
 677         case P_INT:
 678                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 679                                    itos(*((gint *)pparam->data)));
 680                 break;
 681         case P_USHORT:
 682                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 683                                    itos(*((gushort *)pparam->data)));
 684                 break;
 685         default:
 686                 g_warning("Invalid PrefType for GtkEntry widget: %d\n",
 687                           pparam->type);
 688         }
 689 }
 690
 691 void prefs_set_data_from_text(PrefParam *pparam)
 692 {
 693         gchar **str;
 694         gchar *text = NULL, *tp = NULL;
 695         gchar *tmp, *tmpp;
 696
 697         g_return_if_fail(*pparam->widget != NULL);
 698
 699         switch (pparam->type) {
 700         case P_STRING:
 701         case P_PASSWORD:
 702                 str = (gchar **)pparam->data;
 703                 g_free(*str);
 704                 if (GTK_IS_EDITABLE(*pparam->widget)) {   /* need? */
 705                         tp = text = gtk_editable_get_chars
 706                                         (GTK_EDITABLE(*pparam->widget), 0, -1);
 707                 } else if (GTK_IS_TEXT_VIEW(*pparam->widget)) {
 708                         GtkTextView *textview = GTK_TEXT_VIEW(*pparam->widget);
 709                         GtkTextBuffer *buffer = gtk_text_view_get_buffer(textview);
 710                         GtkTextIter start, end;
 711                         gtk_text_buffer_get_start_iter(buffer, &start);
 712                         gtk_text_buffer_get_iter_at_offset(buffer, &end, -1);
 713                         tp = text = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
 714                 }
 715
 716                 g_return_if_fail (tp && text);
 717
 718                 if (text[0] == '\0') {
 719                         *str = NULL;
 720                         g_free(text);
 721                         break;
 722                 }
 723
 724                 Xalloca(tmpp = tmp, strlen(text) * 2 + 1,
 725                         { *str = NULL; break; });
 726                 while (*tp) {
 727                         if (*tp == '\n') {
 728                                 *tmpp++ = '\\';
 729                                 *tmpp++ = 'n';
 730                                 tp++;
 731                         } else
 732                                 *tmpp++ = *tp++;
 733                 }
 734                 *tmpp = '\0';
 735                 *str = g_strdup(tmp);
 736                 g_free(text);
 737                 break;
 738         default:
 739                 g_warning("Invalid PrefType for GtkText widget: %d\n",
 740                           pparam->type);
 741         }
 742 }
 743
 744 void prefs_set_text(PrefParam *pparam)
 745 {
 746         gchar *buf, *sp, *bufp;
 747         gchar **str;
 748         GtkTextView *text;
 749         GtkTextBuffer *buffer;
 750         GtkTextIter iter;
 751
 752         g_return_if_fail(*pparam->widget != NULL);
 753
 754         switch (pparam->type) {
 755         case P_STRING:
 756         case P_PASSWORD:
 757                 str = (gchar **)pparam->data;
 758                 if (*str) {
 759                         bufp = buf = alloca(strlen(*str) + 1);
 760                         if (!buf) buf = "";
 761                         else {
 762                                 sp = *str;
 763                                 while (*sp) {
 764                                         if (*sp == '\\' && *(sp + 1) == 'n') {
 765                                                 *bufp++ = '\n';
 766                                                 sp += 2;
 767                                         } else
 768                                                 *bufp++ = *sp++;
 769                                 }
 770                                 *bufp = '\0';
 771                         }
 772                 } else
 773                         buf = "";
 774
 775                 text = GTK_TEXT_VIEW(*pparam->widget);
 776                 buffer = gtk_text_view_get_buffer(text);
 777                 gtk_text_buffer_set_text(buffer, "", -1);
 778                 gtk_text_buffer_get_start_iter(buffer, &iter);
 779                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 780                 break;
 781         default:
 782                 g_warning("Invalid PrefType for GtkTextView widget: %d\n",
 783                           pparam->type);
 784         }
 785 }
 786
 787 void prefs_set_data_from_toggle(PrefParam *pparam)
 788 {
 789         g_return_if_fail(pparam->type == P_BOOL);
 790         g_return_if_fail(*pparam->widget != NULL);
 791
 792         *((gboolean *)pparam->data) =
 793                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(*pparam->widget));
 794 }
 795
 796 void prefs_set_toggle(PrefParam *pparam)
 797 {
 798         g_return_if_fail(pparam->type == P_BOOL);
 799         g_return_if_fail(*pparam->widget != NULL);
 800
 801         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(*pparam->widget),
 802                                      *((gboolean *)pparam->data));
 803 }
 804
 805 void prefs_set_data_from_spinbtn(PrefParam *pparam)
 806 {
 807         g_return_if_fail(*pparam->widget != NULL);
 808
 809         switch (pparam->type) {
 810         case P_INT:
 811                 *((gint *)pparam->data) =
 812                         gtk_spin_button_get_value_as_int
 813                         (GTK_SPIN_BUTTON(*pparam->widget));
 814                 break;
 815         case P_USHORT:
 816                 *((gushort *)pparam->data) =
 817                         (gushort)gtk_spin_button_get_value_as_int
 818                         (GTK_SPIN_BUTTON(*pparam->widget));
 819                 break;
 820         default:
 821                 g_warning("Invalid PrefType for GtkSpinButton widget: %d\n",
 822                           pparam->type);
 823         }
 824 }
 825
 826 void prefs_set_spinbtn(PrefParam *pparam)
 827 {
 828         g_return_if_fail(*pparam->widget != NULL);
 829
 830         switch (pparam->type) {
 831         case P_INT:
 832                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 833                                           (gfloat)*((gint *)pparam->data));
 834                 break;
 835         case P_USHORT:
 836                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 837                                           (gfloat)*((gushort *)pparam->data));
 838                 break;
 839         default:
 840                 g_warning("Invalid PrefType for GtkSpinButton widget: %d\n",
 841                           pparam->type);
 842         }
 843 }
 844
 845 static GSList *prefs_pages = NULL;
 846
 847 void prefs_gtk_open(void)
 848 {
 849         prefswindow_open(_("Preferences"), prefs_pages, NULL,
 850                         &prefs_common.prefswin_width, &prefs_common.prefswin_height);
 851 }
 852
 853 void prefs_gtk_register_page(PrefsPage *page)
 854 {
 855         prefs_pages = g_slist_append(prefs_pages, page);
 856 }
 857
 858 void prefs_gtk_unregister_page(PrefsPage *page)
 859 {
 860         prefs_pages = g_slist_remove(prefs_pages, page);
 861 }