src/prefs_themes.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2003-2015 Hiroyuki Yamamoto & the Claws Mail 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 3 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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include "defs.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <sys/stat.h>
  29 #ifdef HAVE_SVG
  30 #include <math.h>
  31 #endif
  32
  33 #include <glib.h>
  34 #include <glib/gi18n.h>
  35 #include <gtk/gtk.h>
  36
  37 #include "utils.h"
  38 #include "codeconv.h"
  39 #include "prefs_common.h"
  40 #include "prefs_gtk.h"
  41
  42 #include "gtk/gtkutils.h"
  43 #include "gtk/prefswindow.h"
  44 #include "gtk/filesel.h"
  45
  46 #include "stock_pixmap.h"
  47 #include "mainwindow.h"
  48 #include "compose.h"
  49 #include "alertpanel.h"
  50 #include "addr_compl.h"
  51 #include "file-utils.h"
  52
  53 #define IS_CURRENT_THEME(path)  (strcmp(prefs_common.pixmap_theme_path, path) == 0)
  54 #define IS_INTERNAL_THEME(path) (strcmp(DEFAULT_PIXMAP_THEME, path) == 0)
  55 #define IS_SYSTEM_THEME(path)   (prefs_themes_is_system_theme(path))
  56
  57 #define PREVIEW_ICONS 7
  58
  59 typedef struct _ThemesPage
  60 {
  61         PrefsPage page;
  62
  63         GtkWidget *window;              /* do not modify */
  64
  65         GtkWidget *op_menu;
  66         GtkWidget *btn_install;
  67         GtkWidget *btn_more;
  68         GtkWidget *global;
  69
  70         GtkWidget *name;
  71         GtkWidget *author;
  72         GtkWidget *url;
  73         GtkWidget *status;
  74
  75         GtkWidget *icons[PREVIEW_ICONS];
  76
  77         GtkWidget *btn_remove;
  78
  79         GdkPixbuf *pixbufs[PREVIEW_ICONS];
  80
  81 #ifdef HAVE_SVG
  82         GtkWidget *checkbtn_enable_alpha;
  83         GtkWidget *checkbtn_enable_scaling;
  84         GtkWidget *checkbtn_scaling_auto;
  85         GtkWidget *label_scaling_ppi;
  86         GtkWidget *spinbtn_scaling_ppi;
  87 #endif
  88 } ThemesPage;
  89
  90 typedef struct _ThemeInfo
  91 {
  92         gchar *name;
  93         gchar *author;
  94         gchar *url;
  95         gchar *status;
  96 } ThemeInfo;
  97
  98 typedef struct _ThemeName
  99 {
 100         gchar *name;
 101         GList *item;
 102 } ThemeName;
 103
 104 typedef struct _ThemesData
 105 {
 106         GList      *themes;
 107         GList      *names;
 108         gchar      *displayed;
 109         ThemesPage *page;
 110 } ThemesData;
 111
 112 typedef void (*FileFunc) (const gchar *filename, gpointer data);
 113
 114 typedef struct _DirInfo {
 115         gint bytes;
 116         gint files;
 117         gint pixms;
 118         /* extensions info */
 119         const char **supported;
 120         gint *length;
 121 } DirInfo;
 122
 123 typedef struct _CopyInfo {
 124         gchar *dest;
 125         gchar *status;
 126 } CopyInfo;
 127
 128 static ThemesData *prefs_themes_data;
 129
 130 StockPixmap prefs_themes_icons[PREVIEW_ICONS] = {
 131         STOCK_PIXMAP_DIR_CLOSE,
 132         STOCK_PIXMAP_MAIL_SEND,
 133         STOCK_PIXMAP_MAIL_RECEIVE,
 134         STOCK_PIXMAP_MAIL_ATTACH,
 135         STOCK_PIXMAP_BOOK,
 136         STOCK_PIXMAP_MIME_TEXT_PLAIN,
 137         STOCK_PIXMAP_REPLIED
 138 };
 139
 140
 141
 142 static void prefs_themes_btn_remove_clicked_cb  (GtkWidget *widget, gpointer data);
 143 static void prefs_themes_btn_install_clicked_cb (GtkWidget *widget, gpointer data);
 144 static void prefs_themes_menu_item_activated_cb (GtkWidget *widget, gpointer data);
 145 #ifdef HAVE_SVG
 146 static gdouble prefs_themes_compute_ppi(GdkScreen *screen);
 147 static gdouble prefs_themes_get_adjusted_ppi(void);
 148 static void prefs_themes_checkbtn_enable_scaling_toggled_cb (GtkWidget *widget, gpointer data);
 149 static void prefs_themes_checkbtn_scaling_auto_toggled_cb (GtkWidget *widget, gpointer data);
 150 #endif
 151
 152 static void prefs_themes_update_buttons         (const ThemesData *tdata);
 153 static void prefs_themes_display_global_stats   (const ThemesData *tdata);
 154 static void prefs_themes_get_theme_info         (ThemesData *tdata);
 155 static void prefs_themes_display_theme_info     (ThemesData *tdata, const ThemeInfo *info);
 156 static void prefs_themes_get_themes_and_names   (ThemesData *tdata);
 157 static int prefs_themes_cmp_name(gconstpointer a, gconstpointer b);
 158 static void prefs_themes_free_names             (ThemesData *tdata);
 159
 160 static void prefs_themes_set_themes_menu        (GtkComboBox *combo, const ThemesData *tdata);
 161
 162 static gchar *prefs_themes_get_theme_stats      (const gchar *dirname);
 163 static gboolean prefs_themes_is_system_theme    (const gchar *dirname);
 164
 165 static void prefs_themes_create_widget          (PrefsPage *page, GtkWindow *window, gpointer data);
 166 static void prefs_themes_destroy_widget         (PrefsPage *page);
 167 static void prefs_themes_save                   (PrefsPage *page);
 168
 169 static void prefs_themes_foreach_file           (const gchar *dirname, const FileFunc func, gpointer data);
 170 static void prefs_themes_file_stats             (const gchar *filename, gpointer data);
 171 static void prefs_themes_file_remove            (const gchar *filename, gpointer data);
 172 static void prefs_themes_file_install           (const gchar *filename, gpointer data);
 173
 174
 175
 176 static void prefs_themes_file_stats(const gchar *filename, gpointer data)
 177 {
 178 #ifdef G_OS_WIN32
 179         GFile *f;
 180         GFileInfo *fi;
 181         GError *error = NULL;
 182 #else
 183         GStatBuf s;
 184 #endif
 185         goffset size;
 186         DirInfo *di = (DirInfo *)data;
 187         gint len;
 188         gint i;
 189
 190 #ifdef G_OS_WIN32
 191         f = g_file_new_for_path(filename);
 192         fi = g_file_query_info(f, "standard::size,standard::type",
 193                         G_FILE_QUERY_INFO_NONE, NULL, &error);
 194         if (error != NULL) {
 195                 g_warning(error->message);
 196                 g_error_free(error);
 197                 g_object_unref(f);
 198                 return;
 199         }
 200         if (g_file_info_get_file_type(fi) != G_FILE_TYPE_REGULAR) {
 201                 g_object_unref(fi);
 202                 g_object_unref(f);
 203                 return;
 204         }
 205         size = g_file_info_get_size(fi);
 206         g_object_unref(fi);
 207         g_object_unref(f);
 208 #else
 209         if ((i = g_stat(filename, &s)) != 0) {
 210                 debug_print("g_stat on '%s' failed: %d\n", filename, i);
 211                 return;
 212         }
 213         if (!S_ISREG(s.st_mode)) {
 214                 return;
 215         }
 216         size = s.st_size;
 217 #endif
 218
 219         di->bytes += size;
 220         di->files++;
 221         len = strlen(filename);
 222         for (i = 0; (di->supported)[i] != NULL; ++i) {
 223                 gint curlen = (di->length)[i];
 224                 if (len <= curlen)
 225                         continue;
 226                 const gchar *extension = filename + (len - curlen);
 227                 if (!strcmp(extension, (di->supported)[i])) {
 228                         di->pixms++;
 229                         break;
 230                 }
 231         }
 232 }
 233
 234 static void prefs_themes_file_remove(const gchar *filename, gpointer data)
 235 {
 236         gchar **status = (gchar **)data;
 237         gchar *base;
 238
 239         if ((*status) != NULL)
 240                 return;
 241
 242         base = g_path_get_basename(filename);
 243         if (TRUE == is_dir_exist(filename)) {
 244                 if (strcmp(base, ".") != 0 && strcmp(base, "..") != 0)
 245                         g_warning("prefs_themes_file_remove(): subdir in theme dir skipped: '%s'.",
 246                                                 base);
 247         }
 248         else if (0 != claws_unlink(filename)) {
 249                 (*status) = g_strdup(filename);
 250         }
 251         g_free(base);
 252 }
 253
 254 static void prefs_themes_file_install(const gchar *filename, gpointer data)
 255 {
 256         CopyInfo *ci = (CopyInfo *)data;
 257         gchar *base;
 258
 259         if (ci->status != NULL)
 260                 return;
 261
 262         base = g_path_get_basename(filename);
 263         if (TRUE == is_dir_exist(filename)) {
 264                 if (strcmp(base, ".") != 0 && strcmp(base, "..") !=0 )
 265                         g_warning("prefs_themes_file_install(): subdir in theme dir skipped: '%s'.",
 266                                                 base);
 267         }
 268         else {
 269                 gchar *fulldest;
 270
 271                 fulldest = g_strconcat(ci->dest, G_DIR_SEPARATOR_S, base, NULL);
 272
 273                 if (0 != copy_file(filename, fulldest, FALSE)) {
 274                         ci->status = g_strdup(filename);
 275                 }
 276                 g_free(fulldest);
 277         }
 278         g_free(base);
 279 }
 280
 281 static void prefs_themes_foreach_file(const gchar *dirname, const FileFunc func, gpointer data)
 282 {
 283         const gchar *entry;
 284         gchar *fullentry;
 285         GDir *dp;
 286         GError *error = NULL;
 287
 288         cm_return_if_fail(dirname != NULL);
 289         cm_return_if_fail(func != NULL);
 290
 291         if ((dp = g_dir_open(dirname, 0, &error)) == NULL) {
 292                 debug_print("couldn't open dir '%s': %s (%d)\n", dirname,
 293                                 error->message, error->code);
 294                 g_error_free(error);
 295                 return;
 296         }
 297
 298         while ((entry = g_dir_read_name(dp)) != NULL) {
 299
 300                 fullentry = g_strconcat(dirname, G_DIR_SEPARATOR_S, entry, NULL);
 301
 302                 (*func)(fullentry, data);
 303
 304                 g_free(fullentry);
 305         }
 306         g_dir_close(dp);
 307 }
 308
 309 static gboolean prefs_themes_is_system_theme(const gchar *dirname)
 310 {
 311         gint len;
 312         gchar *system_theme_dir;
 313         gboolean is_sys = FALSE;
 314
 315         cm_return_val_if_fail(dirname != NULL, FALSE);
 316
 317         system_theme_dir = stock_pixmap_get_system_theme_dir_for_theme(NULL);
 318         len = strlen(system_theme_dir);
 319         if (strlen(dirname) > len && 0 == strncmp(dirname, system_theme_dir, len))
 320                 is_sys = TRUE;
 321
 322         g_free(system_theme_dir);
 323
 324         return is_sys;
 325 }
 326
 327 static void prefs_themes_set_themes_menu(GtkComboBox *combo, const ThemesData *tdata)
 328 {
 329         GtkListStore *store;
 330         GtkTreeIter iter;
 331         GList     *themes = tdata->names;
 332         gint       i = 0, active = 0;
 333         GList     *sorted_list = NULL;
 334
 335         cm_return_if_fail(combo != NULL);
 336
 337         /* sort theme data list by data name */
 338         while (themes != NULL) {
 339                 ThemeName *tname = (ThemeName *)(themes->data);
 340
 341                 sorted_list = g_list_insert_sorted(sorted_list, (gpointer)(tname),
 342                                                    (GCompareFunc)prefs_themes_cmp_name);
 343
 344                 themes = g_list_next(themes);
 345         }
 346
 347         store = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_POINTER);
 348
 349         /* feed gtk_menu w/ sorted themes names */
 350         themes = sorted_list;
 351         while (themes != NULL) {
 352                 ThemeName *tname = (ThemeName *)(themes->data);
 353                 gchar     *tpath = (gchar *)(tname->item->data);
 354
 355                 gtk_list_store_append(store, &iter);
 356                 gtk_list_store_set(store, &iter,
 357                                    0, tname->name,
 358                                    1, tname->item->data, -1);
 359
 360                 if (tdata->displayed != NULL && !g_strcmp0(tdata->displayed,tpath))
 361                         active = i;
 362                 ++i;
 363
 364                 themes = g_list_next(themes);
 365         }
 366
 367         g_list_free(sorted_list);
 368
 369         g_signal_connect(G_OBJECT(combo), "changed",
 370                          G_CALLBACK(prefs_themes_menu_item_activated_cb),
 371                          NULL);
 372
 373         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(store));
 374         gtk_combo_box_set_active(combo, active);
 375 }
 376
 377 static int prefs_themes_cmp_name(gconstpointer a_p, gconstpointer b_p)
 378 {
 379         /* compare two ThemeData structures by their name attribute */
 380         return g_strcmp0((gchar *)(((ThemeName*)a_p)->name),
 381                                         (gchar *)(((ThemeName*)b_p)->name));
 382 }
 383
 384 static void prefs_themes_get_themes_and_names(ThemesData *tdata)
 385 {
 386         GList *tpaths;
 387
 388         cm_return_if_fail(tdata != NULL);
 389
 390         stock_pixmap_themes_list_free(tdata->themes);
 391         prefs_themes_free_names(tdata);
 392
 393         tdata->themes = stock_pixmap_themes_list_new();
 394
 395         tpaths = tdata->themes;
 396         while (tpaths != NULL) {
 397                 ThemeName *name = g_new0(ThemeName, 1);
 398                 gchar *sname = g_path_get_basename((const gchar *)(tpaths->data));
 399
 400                 if (IS_INTERNAL_THEME(sname))
 401                         name->name = g_strdup(_("Default internal theme"));
 402                 else
 403                         name->name = g_strdup(sname);
 404                 name->item = tpaths;
 405
 406                 tdata->names = g_list_append(tdata->names, name);
 407                 if (!g_strcmp0(tpaths->data, prefs_common.pixmap_theme_path)) {
 408                         tdata->displayed = (gchar *)tpaths->data;
 409                 }
 410                 tpaths = g_list_next(tpaths);
 411                 g_free(sname);
 412         }
 413 }
 414
 415 void prefs_themes_init(void)
 416 {
 417         ThemesData   *tdata;
 418         ThemesPage   *page;
 419         GList        *tpaths;
 420         static gchar *path[3];
 421
 422         path[0] = _("Display");
 423         path[1] = _("Themes");
 424         path[2] = NULL;
 425
 426         debug_print("Creating preferences for themes...\n");
 427
 428         tdata = g_new0(ThemesData, 1);
 429         prefs_themes_data = tdata;
 430
 431         prefs_themes_get_themes_and_names(tdata);
 432
 433         page = g_new0(ThemesPage, 1);
 434
 435         page->page.path = path;
 436         page->page.create_widget = prefs_themes_create_widget;
 437         page->page.destroy_widget = prefs_themes_destroy_widget;
 438         page->page.save_page = prefs_themes_save;
 439         page->page.weight = 130.0;
 440         prefs_gtk_register_page((PrefsPage *) page);
 441
 442         tdata->page = page;
 443
 444         tpaths = g_list_first(tdata->themes);
 445         if (tdata->displayed == NULL)
 446                 tdata->displayed = (gchar *)(tpaths->data);
 447 #ifdef HAVE_SVG
 448         if (prefs_common.pixmap_scaling_auto)
 449                 prefs_common.pixmap_scaling_ppi = prefs_themes_get_adjusted_ppi();
 450 #endif
 451 }
 452
 453 static void prefs_themes_free_names(ThemesData *tdata)
 454 {
 455         GList *names;
 456
 457         cm_return_if_fail(tdata != NULL);
 458
 459         if (tdata->names == NULL)
 460                 return;
 461
 462         names = tdata->names;
 463         while (names != NULL) {
 464                 ThemeName *tn = (ThemeName *)(names->data);
 465
 466                 tn->item = NULL;
 467                 g_free(tn->name);
 468                 g_free(tn);
 469
 470                 names = g_list_next(names);
 471         }
 472         g_list_free(tdata->names);
 473         tdata->names = NULL;
 474 }
 475
 476 void prefs_themes_done(void)
 477 {
 478         ThemesData *tdata = prefs_themes_data;
 479
 480         debug_print("Finished preferences for themes.\n");
 481
 482         stock_pixmap_themes_list_free(tdata->themes);
 483         prefs_themes_free_names(tdata);
 484         g_free(tdata->page);
 485         g_free(tdata);
 486 }
 487
 488 static void prefs_themes_btn_remove_clicked_cb(GtkWidget *widget, gpointer data)
 489 {
 490         ThemesData *tdata = prefs_themes_data;
 491         gchar      *theme_str;
 492         gchar      *alert_title = NULL;
 493         AlertValue  val = 0;
 494         gchar      *tmp = NULL;
 495
 496         theme_str = tdata->displayed;
 497
 498         tmp = g_path_get_basename(theme_str);
 499         if (IS_SYSTEM_THEME(theme_str)) {
 500                 alert_title = g_strdup_printf(_("Remove system theme '%s'"), tmp);
 501         } else {
 502                 alert_title = g_strdup_printf(_("Remove theme '%s'"), tmp);
 503         }
 504         g_free(tmp);
 505
 506         val = alertpanel(alert_title,
 507                          _("Are you sure you want to remove this theme?"),
 508                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, ALERTFOCUS_FIRST);
 509         g_free(alert_title);
 510
 511         if (G_ALERTALTERNATE == val) {
 512                 gchar *status = NULL;
 513
 514                 prefs_themes_foreach_file(theme_str, prefs_themes_file_remove, &status);
 515                 if (0 != rmdir(theme_str)) {
 516                         if (status != NULL) {
 517                                 alertpanel_error(_("File %s failed\nwhile removing theme."), status);
 518                                 g_free(status);
 519                         }
 520                         else
 521                                 alertpanel_error(_("Removing theme directory failed."));
 522                 }
 523                 else {
 524                         alertpanel_notice(_("Theme removed successfully"));
 525                         /* update interface back to first theme */
 526                         prefs_themes_get_themes_and_names(tdata);
 527                         prefs_themes_set_themes_menu(GTK_COMBO_BOX(tdata->page->op_menu), tdata);
 528                         prefs_themes_display_global_stats(tdata);
 529                         tdata->displayed = (gchar *)((g_list_first(tdata->themes))->data);
 530                         prefs_themes_get_theme_info(tdata);
 531                 }
 532         }
 533 }
 534
 535 static void prefs_themes_btn_install_clicked_cb(GtkWidget *widget, gpointer data)
 536 {
 537         gchar      *filename, *source;
 538         gchar      *themeinfo, *themename;
 539         gchar      *alert_title = NULL;
 540         CopyInfo   *cinfo;
 541         AlertValue  val = 0;
 542         ThemesData *tdata = prefs_themes_data;
 543
 544         filename = filesel_select_file_open_folder(_("Select theme folder"), NULL);
 545         if (filename == NULL)
 546                 return;
 547
 548         if (filename[strlen(filename) - 1] != G_DIR_SEPARATOR)
 549                 filename = g_strconcat(filename, G_DIR_SEPARATOR_S, NULL);
 550         else
 551                 filename = g_strdup(filename);
 552
 553         cinfo = g_new0(CopyInfo, 1);
 554         source = g_path_get_dirname(filename);
 555         themename = g_path_get_basename(source);
 556         debug_print("Installing '%s' theme from %s\n", themename, filename);
 557
 558         themeinfo = g_strconcat(source, G_DIR_SEPARATOR_S, THEMEINFO_FILE, NULL);
 559         alert_title = g_strdup_printf(_("Install theme '%s'"), themename);
 560         if (file_exist(themeinfo, FALSE) == FALSE) {
 561                 val = alertpanel(alert_title,
 562                                  _("This folder doesn't seem to be a theme"
 563                                    "folder.\nInstall anyway?"),
 564                                  GTK_STOCK_NO, GTK_STOCK_YES, NULL, ALERTFOCUS_FIRST);
 565                 if (G_ALERTALTERNATE != val) {
 566                         g_free(alert_title);
 567                         goto end_inst;
 568                 }
 569         }
 570
 571         val = alertpanel(alert_title,
 572                          _("Do you want to install theme for all users?"),
 573                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, ALERTFOCUS_FIRST);
 574         g_free(alert_title);
 575         switch (val) {
 576         case G_ALERTALTERNATE:
 577                 cinfo->dest = stock_pixmap_get_system_theme_dir_for_theme(
 578                                         themename);
 579                 break;
 580         case G_ALERTDEFAULT:
 581                 break;
 582         default:
 583                 goto end_inst;
 584         }
 585
 586         if (cinfo->dest == NULL) {
 587                 cinfo->dest = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 588                                           PIXMAP_THEME_DIR, G_DIR_SEPARATOR_S,
 589                                           themename, NULL);
 590         }
 591         if (TRUE == is_dir_exist(cinfo->dest)) {
 592                 AlertValue val = alertpanel_full(_("Theme exists"),
 593                                 _("A theme with the same name is\n"
 594                                   "already installed in this location.\n\n"
 595                                   "Do you want to replace it?"),
 596                                 GTK_STOCK_CANCEL, _("Overwrite"), NULL, ALERTFOCUS_FIRST,
 597                                 FALSE, NULL, ALERT_WARNING);
 598                 if (val == G_ALERTALTERNATE) {
 599                         if (remove_dir_recursive(cinfo->dest) < 0) {
 600                                 alertpanel_error(_("Couldn't delete the old theme in %s."),
 601                                                  cinfo->dest);
 602                                 goto end_inst;
 603                         }
 604                 } else {
 605                         goto end_inst;
 606                 }
 607         }
 608         if (0 != make_dir_hier(cinfo->dest)) {
 609                 alertpanel_error(_("Couldn't create destination directory %s."),
 610                                  cinfo->dest);
 611                 goto end_inst;
 612         }
 613         prefs_themes_foreach_file(source, prefs_themes_file_install, cinfo);
 614         if (cinfo->status == NULL) {
 615                 GList *insted;
 616
 617                 /* update interface to show newly installed theme */
 618                 prefs_themes_get_themes_and_names(tdata);
 619                 insted = g_list_find_custom(tdata->themes,
 620                                             (gpointer)(cinfo->dest),
 621                                             (GCompareFunc)g_strcmp0);
 622                 if (NULL != insted) {
 623                         alertpanel_notice(_("Theme installed successfully."));
 624                         tdata->displayed = (gchar *)(insted->data);
 625                         prefs_themes_set_themes_menu(GTK_COMBO_BOX(tdata->page->op_menu), tdata);
 626                         prefs_themes_display_global_stats(tdata);
 627                         prefs_themes_get_theme_info(tdata);
 628                 }
 629                 else
 630                         alertpanel_error(_("Failed installing theme"));
 631         }
 632         else
 633                 alertpanel_error(_("File %s failed\nwhile installing theme."), cinfo->status);
 634 end_inst:
 635         g_free(cinfo->dest);
 636         g_free(filename);
 637         g_free(source);
 638         g_free(themeinfo);
 639         g_free(cinfo);
 640         g_free(themename);
 641 }
 642
 643 static void prefs_themes_menu_item_activated_cb(GtkWidget *widget, gpointer data)
 644 {
 645         ThemesData *tdata = prefs_themes_data;
 646         gchar      *path;
 647         GtkTreeModel *model;
 648         GtkTreeIter iter;
 649
 650         cm_return_if_fail(gtk_combo_box_get_active_iter(GTK_COMBO_BOX(widget), &iter));
 651
 652         model = gtk_combo_box_get_model(GTK_COMBO_BOX(widget));
 653         gtk_tree_model_get(model, &iter, 1, &path, -1);
 654
 655         tdata->displayed = path;
 656         prefs_themes_get_theme_info(tdata);
 657 }
 658
 659 #ifdef HAVE_SVG
 660 #define MM_INCH 0.0393700787402
 661 static gdouble prefs_themes_compute_ppi(GdkScreen *screen)
 662 {
 663         gdouble wp = gdk_screen_get_width(screen);
 664         gdouble hp = gdk_screen_get_height(screen);
 665         gdouble wi = gdk_screen_get_width_mm(screen);
 666         gdouble hi = gdk_screen_get_height_mm(screen);
 667         gdouble dp, di;
 668
 669         debug_print("screen is %f x %f pixels, %f x %f mm\n", wp, hp, wi, hi);
 670
 671         /* https://en.wikipedia.org/wiki/Pixel_density */
 672         wi *= MM_INCH;
 673         hi *= MM_INCH;
 674         dp = sqrt(wp * wp + hp * hp);
 675         di = sqrt(wi * wi + hi * hi);
 676
 677         return (di != 0.0)? dp / di: 0.0;
 678 }
 679
 680 static gdouble prefs_themes_get_adjusted_ppi(void)
 681 {
 682         gdouble ppi, cppi;
 683         GdkScreen * screen = gdk_screen_get_default();
 684
 685         if (screen == NULL) { /* oops! */
 686                 g_warning("unable to get default GDK screen");
 687                 return MIN_PPI;
 688         }
 689
 690         ppi = gdk_screen_get_resolution(screen);
 691         cppi = prefs_themes_compute_ppi(screen);
 692         debug_print("returned PPI: %f / computed PPI: %f\n", ppi, cppi);
 693         /*
 694          gdk_screen_get_resolution doesn't seem to work well when running
 695          on a remote display and returns the value of the local display.
 696          height/width functions do this better, so we can compute a PPI
 697          from them and take the highest value.
 698         */
 699         return MAX(ppi, cppi);
 700 }
 701
 702 static void prefs_themes_checkbtn_enable_scaling_toggled_cb (GtkWidget *widget, gpointer data)
 703 {
 704         ThemesPage *page = (ThemesPage *) data;
 705         gboolean enabled = gtk_toggle_button_get_active(
 706                                 GTK_TOGGLE_BUTTON (widget));
 707         gboolean automatic = gtk_toggle_button_get_active(
 708                                 GTK_TOGGLE_BUTTON (page->checkbtn_scaling_auto));
 709
 710         gtk_widget_set_sensitive(page->checkbtn_scaling_auto, enabled);
 711         gtk_widget_set_sensitive(page->spinbtn_scaling_ppi, enabled && !automatic);
 712         gtk_widget_set_sensitive(page->label_scaling_ppi, enabled && !automatic);
 713 }
 714
 715 static void prefs_themes_checkbtn_scaling_auto_toggled_cb(GtkWidget *widget, gpointer data)
 716 {
 717         ThemesPage *page = (ThemesPage *) data;
 718         gboolean automatic = gtk_toggle_button_get_active(
 719                                 GTK_TOGGLE_BUTTON (widget));
 720
 721         gtk_widget_set_sensitive(page->spinbtn_scaling_ppi, !automatic);
 722         gtk_widget_set_sensitive(page->label_scaling_ppi, !automatic);
 723
 724         if (automatic) /* update PPI value */
 725                 gtk_spin_button_set_value(
 726                                 GTK_SPIN_BUTTON (page->spinbtn_scaling_ppi),
 727                                 prefs_themes_get_adjusted_ppi());
 728 }
 729 #endif
 730
 731 static void prefs_themes_update_buttons(const ThemesData *tdata)
 732 {
 733         ThemesPage *theme = tdata->page;
 734         gboolean    can_rem, can_use;
 735
 736         can_use = !IS_CURRENT_THEME(tdata->displayed);
 737         can_rem = can_use && !IS_INTERNAL_THEME(tdata->displayed);
 738
 739         if (theme->btn_remove != NULL)
 740                 gtk_widget_set_sensitive(theme->btn_remove, can_rem);
 741 }
 742
 743 /* placeholders may already be utf8 (i18n) */
 744 #define SET_LABEL_TEXT_UTF8(label, text)                                \
 745 {                                                                       \
 746         gchar *tmpstr;                                                  \
 747                                                                         \
 748         if (!g_utf8_validate(text, -1, NULL))                           \
 749                 tmpstr = conv_codeset_strdup(text,                      \
 750                         conv_get_locale_charset_str(),  CS_UTF_8);      \
 751         else                                                            \
 752                 tmpstr = g_strdup(text);                                \
 753                                                                         \
 754         gtk_label_set_text(GTK_LABEL(label), tmpstr);                   \
 755         gtk_label_set_selectable(GTK_LABEL(label), TRUE);               \
 756         g_free(tmpstr);                                                 \
 757 }
 758 static void prefs_themes_display_theme_info(ThemesData *tdata, const ThemeInfo *info)
 759 {
 760         ThemesPage *theme = tdata->page;
 761         gchar *save_prefs_path;
 762         gint   i;
 763
 764         SET_LABEL_TEXT_UTF8(theme->name,        info->name);
 765         SET_LABEL_TEXT_UTF8(theme->author,      info->author);
 766         SET_LABEL_TEXT_UTF8(theme->url,         info->url);
 767         SET_LABEL_TEXT_UTF8(theme->status,      info->status);
 768
 769         save_prefs_path = prefs_common.pixmap_theme_path;
 770         prefs_common.pixmap_theme_path = tdata->displayed;
 771         for (i = 0; i < PREVIEW_ICONS; ++i) {
 772                 stock_pixbuf_gdk(prefs_themes_icons[i], &(theme->pixbufs[i]));
 773                 gtk_image_set_from_pixbuf(GTK_IMAGE(theme->icons[i]),
 774                                 theme->pixbufs[i]);
 775         }
 776         prefs_common.pixmap_theme_path = save_prefs_path;
 777
 778         prefs_themes_update_buttons(tdata);
 779 }
 780 #undef SET_LABEL_TEXT_UTF8
 781
 782 static void prefs_themes_display_global_stats(const ThemesData *tdata)
 783 {
 784         ThemesPage *theme = tdata->page;
 785         GList      *tnames = tdata->names;
 786         gchar      *gstats;
 787         gint        sys = 0;
 788         gint        usr = 0;
 789         gint        all = 0;
 790
 791         while (tnames != NULL) {
 792                 ThemeName *tname = (ThemeName *)(tnames->data);
 793                 gchar     *tpath = (gchar *)(tname->item->data);
 794
 795                 if (IS_SYSTEM_THEME(tpath))
 796                         ++sys;
 797                 else if (!IS_INTERNAL_THEME(tpath))
 798                         ++usr;
 799                 ++all;
 800                 tnames = g_list_next(tnames);
 801         }
 802
 803         gstats = g_strdup_printf(_("%d themes available (%d user, %d system, 1 internal)"),
 804                                  all, usr, sys);
 805         gtk_label_set_text(GTK_LABEL(theme->global), gstats);
 806         gtk_label_set_justify (GTK_LABEL (theme->global), GTK_JUSTIFY_LEFT);
 807         gtkut_widget_set_small_font_size (theme->global);
 808         g_free(gstats);
 809 }
 810
 811 #define INFOFILE_LINE_LEN 80
 812
 813 #define FGETS_INFOFILE_LINE() \
 814         line[0] = '\0'; \
 815         if (claws_fgets(line, INFOFILE_LINE_LEN, finfo) != NULL && (len = strlen(line)) > 0) { \
 816                 if (line[len - 1] == '\n') line[len - 1] = '\0'; \
 817         } \
 818         else { \
 819                 g_strlcpy(line, _("Unknown"),sizeof(line)); \
 820         }
 821
 822 static void prefs_themes_get_theme_info(ThemesData *tdata)
 823 {
 824         FILE  *finfo;
 825         gchar *sinfo;
 826         gchar *path;
 827         gchar  line[INFOFILE_LINE_LEN];
 828         gint   len;
 829         ThemeInfo *info;
 830         ThemesPage *theme = tdata->page;
 831
 832         cm_return_if_fail(theme != NULL);
 833         path = tdata->displayed;
 834         cm_return_if_fail(path != NULL);
 835
 836         debug_print("Getting theme info for %s\n", path);
 837
 838         info = g_new0(ThemeInfo, 1);
 839
 840         if (IS_INTERNAL_THEME(path)) {
 841                 info->name = g_strdup(_("Default internal theme"));
 842                 info->author = g_strdup(_("The Claws Mail Team"));
 843                 info->url = g_strdup(HOMEPAGE_URI);
 844                 info->status = g_strdup_printf(_("Internal theme has %d icons"), N_STOCK_PIXMAPS);
 845         }
 846         else {
 847                 sinfo = g_strconcat(path, G_DIR_SEPARATOR_S, THEMEINFO_FILE, NULL);
 848                 finfo = claws_fopen(sinfo, "r");
 849                 if (finfo == NULL) {
 850                         info->name = g_strdup(_("No info file available for this theme"));
 851                         info->author = g_strdup(_("Unknown"));
 852                         info->url = g_strdup(_("Unknown"));
 853                 }
 854                 else {
 855                         FGETS_INFOFILE_LINE()
 856                         info->name = g_strdup(line);
 857                         FGETS_INFOFILE_LINE()
 858                         info->author = g_strdup(line);
 859                         FGETS_INFOFILE_LINE()
 860                         info->url = g_strdup(line);
 861
 862                         claws_fclose(finfo);
 863                 }
 864                 g_free(sinfo);
 865
 866                 info->status = prefs_themes_get_theme_stats(path);
 867                 if (info->status == NULL) {
 868                         info->status = g_strdup(_("Error: couldn't get theme status"));
 869                 }
 870         }
 871
 872         prefs_themes_display_theme_info(tdata, info);
 873
 874         g_free(info->name);
 875         g_free(info->author);
 876         g_free(info->url);
 877         g_free(info->status);
 878
 879         g_free(info);
 880 }
 881
 882 #undef FGETS_INFOFILE_LINE
 883
 884 static gchar *prefs_themes_get_theme_stats(const gchar *dirname)
 885 {
 886         gchar   *stats;
 887         DirInfo *dinfo;
 888         gint     i;
 889
 890         dinfo = g_new0(DirInfo, 1);
 891         dinfo->supported = stock_pixmap_theme_extensions();
 892         for (i = 0; (dinfo->supported)[i] != NULL; ++i);
 893         dinfo->length = g_malloc(i * sizeof(gint));
 894         for (i = 0; (dinfo->supported)[i] != NULL; ++i) {
 895                 (dinfo->length)[i] = strlen((dinfo->supported)[i]);
 896         }
 897         prefs_themes_foreach_file(dirname, prefs_themes_file_stats, dinfo);
 898         stats = g_strdup_printf(_("%d files (%d icons), size: %s"),
 899                                 dinfo->files, dinfo->pixms,
 900                                 to_human_readable((goffset)dinfo->bytes));
 901         g_free(dinfo->length);
 902         g_free(dinfo);
 903         return stats;
 904 }
 905
 906 static void prefs_themes_create_widget(PrefsPage *page, GtkWindow *window, gpointer data)
 907 {
 908         ThemesPage *prefs_themes = (ThemesPage *)page;
 909         ThemesData *tdata = prefs_themes_data;
 910
 911         GtkWidget *vbox1;
 912         GtkWidget *frame1;
 913         GtkWidget *vbox2;
 914         GtkWidget *hbox3;
 915         GtkWidget *menu_themes;
 916         GtkWidget *btn_install;
 917         GtkWidget *btn_more;
 918         GtkWidget *label_global_status;
 919         GtkWidget *frame_info;
 920         GtkWidget *table1;
 921         GtkWidget *label1;
 922         GtkWidget *label2;
 923         GtkWidget *label3;
 924         GtkWidget *label_name;
 925         GtkWidget *label_author;
 926         GtkWidget *label_url;
 927         GtkWidget *label4;
 928         GtkWidget *label_status;
 929         GtkWidget *frame_preview;
 930         GtkWidget *hbox1;
 931         GtkWidget *icon_1;
 932         GtkWidget *icon_2;
 933         GtkWidget *icon_3;
 934         GtkWidget *icon_4;
 935         GtkWidget *icon_5;
 936         GtkWidget *icon_6;
 937         GtkWidget *icon_7;
 938         GtkWidget *frame_buttons;
 939         GtkWidget *hbuttonbox1;
 940         GtkWidget *btn_remove;
 941         GtkCellRenderer *renderer;
 942 #ifdef HAVE_SVG
 943         GtkWidget *frame_scaling;
 944         GtkWidget *checkbtn_enable_alpha;
 945         GtkWidget *checkbtn_enable_scaling;
 946         GtkWidget *checkbtn_scaling_auto;
 947         GtkWidget *label_scaling_ppi;
 948         GtkWidget *spinbtn_scaling_ppi;
 949         GtkAdjustment *spinbtn_scaling_ppi_adj;
 950 #endif
 951
 952         vbox1 = gtk_vbox_new (FALSE, VSPACING);
 953         gtk_container_set_border_width (GTK_CONTAINER (vbox1), 5);
 954         gtk_widget_show (vbox1);
 955
 956         vbox2 = gtkut_get_options_frame(vbox1, &frame1, _("Selector"));
 957
 958         hbox3 = gtk_hbox_new (FALSE, 5);
 959         gtk_widget_show (hbox3);
 960         gtk_box_pack_start (GTK_BOX (vbox2), hbox3, FALSE, FALSE, 0);
 961         // gtk_container_set_border_width (GTK_CONTAINER (hbox3), 5);
 962
 963         menu_themes = gtk_combo_box_new();
 964         gtk_widget_show (menu_themes);
 965         gtk_box_pack_start (GTK_BOX (hbox3), menu_themes, FALSE, FALSE, 0);
 966
 967         btn_install = gtk_button_new_with_label (_("Install new..."));
 968         gtk_widget_show (btn_install);
 969         gtk_box_pack_start (GTK_BOX (hbox3), btn_install, FALSE, FALSE, 0);
 970         gtk_widget_set_can_default (btn_install, TRUE);
 971
 972         btn_more = gtkut_get_link_btn((GtkWidget *)window, THEMES_URI, _("Get more..."));
 973         gtk_widget_show (btn_more);
 974         gtk_box_pack_start (GTK_BOX (hbox3), btn_more, FALSE, FALSE, 0);
 975
 976         label_global_status = gtk_label_new ("");
 977         gtk_widget_show (label_global_status);
 978         gtk_box_pack_start (GTK_BOX (vbox2), label_global_status, FALSE, FALSE, 0);
 979         gtk_label_set_justify (GTK_LABEL (label_global_status), GTK_JUSTIFY_LEFT);
 980         gtk_misc_set_alignment (GTK_MISC (label_global_status), 0, 0.5);
 981         gtk_misc_set_padding (GTK_MISC (label_global_status), 1, 0);
 982
 983         PACK_FRAME(vbox1, frame_info, _("Information"));
 984
 985         table1 = gtk_table_new (4, 2, FALSE);
 986         gtk_widget_show (table1);
 987         gtk_container_add (GTK_CONTAINER (frame_info), table1);
 988         gtk_container_set_border_width (GTK_CONTAINER (table1), 5);
 989
 990         label1 = gtk_label_new (_("Name"));
 991         gtk_widget_show (label1);
 992         gtk_table_attach (GTK_TABLE (table1), label1, 0, 1, 0, 1,
 993                         (GtkAttachOptions) (GTK_FILL),
 994                         (GtkAttachOptions) (0), 5, 4);
 995         gtk_label_set_justify (GTK_LABEL (label1), GTK_JUSTIFY_LEFT);
 996         gtk_misc_set_alignment (GTK_MISC (label1), 1, 0.5);
 997
 998         label2 = gtk_label_new (_("Author"));
 999         gtk_widget_show (label2);
1000         gtk_table_attach (GTK_TABLE (table1), label2, 0, 1, 1, 2,
1001                         (GtkAttachOptions) (GTK_FILL),
1002                         (GtkAttachOptions) (0), 5, 4);
1003         gtk_label_set_justify (GTK_LABEL (label2), GTK_JUSTIFY_LEFT);
1004         gtk_misc_set_alignment (GTK_MISC (label2), 1, 0.5);
1005
1006         label3 = gtk_label_new (_("URL"));
1007         gtk_widget_show (label3);
1008         gtk_table_attach (GTK_TABLE (table1), label3, 0, 1, 2, 3,
1009                         (GtkAttachOptions) (GTK_FILL),
1010                         (GtkAttachOptions) (0), 5, 4);
1011         gtk_misc_set_alignment (GTK_MISC (label3), 1, 0.5);
1012
1013         label_name = gtk_label_new ("");
1014         gtk_widget_show (label_name);
1015         gtk_table_attach (GTK_TABLE (table1), label_name, 1, 2, 0, 1,
1016                         (GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
1017                         (GtkAttachOptions) (0), 5, 0);
1018         gtk_misc_set_alignment (GTK_MISC (label_name), 0, 0.5);
1019
1020         label_author = gtk_label_new ("");
1021         gtk_widget_show (label_author);
1022         gtk_table_attach (GTK_TABLE (table1), label_author, 1, 2, 1, 2,
1023                         (GtkAttachOptions) (GTK_FILL),
1024                         (GtkAttachOptions) (0), 5, 0);
1025         gtk_misc_set_alignment (GTK_MISC (label_author), 0, 0.5);
1026
1027         label_url = gtk_label_new ("");
1028         gtk_widget_show (label_url);
1029         gtk_table_attach (GTK_TABLE (table1), label_url, 1, 2, 2, 3,
1030                         (GtkAttachOptions) (GTK_FILL),
1031                         (GtkAttachOptions) (0), 5, 0);
1032         gtk_misc_set_alignment (GTK_MISC (label_url), 0, 0.5);
1033
1034         label4 = gtk_label_new (_("Status"));
1035         gtk_widget_show (label4);
1036         gtk_table_attach (GTK_TABLE (table1), label4, 0, 1, 3, 4,
1037                         (GtkAttachOptions) (GTK_FILL),
1038                         (GtkAttachOptions) (0), 5, 4);
1039         gtk_misc_set_alignment (GTK_MISC (label4), 1, 0.5);
1040
1041         label_status = gtk_label_new ("");
1042         gtk_widget_show (label_status);
1043         gtk_table_attach (GTK_TABLE (table1), label_status, 1, 2, 3, 4,
1044                         (GtkAttachOptions) (GTK_FILL),
1045                         (GtkAttachOptions) (0), 5, 0);
1046         gtk_misc_set_alignment (GTK_MISC (label_status), 0, 0.5);
1047
1048         PACK_FRAME(vbox1, frame_preview, _("Preview"));
1049
1050         hbox1 = gtk_hbox_new (FALSE, 0);
1051         gtk_widget_show (hbox1);
1052         gtk_container_add (GTK_CONTAINER (frame_preview), hbox1);
1053         gtk_container_set_border_width (GTK_CONTAINER (hbox1), 5);
1054
1055         icon_1 = gtk_image_new();
1056         gtk_widget_show (icon_1);
1057         gtk_box_pack_start (GTK_BOX (hbox1), icon_1, TRUE, TRUE, 2);
1058         gtk_misc_set_padding (GTK_MISC (icon_1), 0, 5);
1059
1060         icon_2 = gtk_image_new();
1061         gtk_widget_show (icon_2);
1062         gtk_box_pack_start (GTK_BOX (hbox1), icon_2, TRUE, TRUE, 2);
1063         gtk_misc_set_padding (GTK_MISC (icon_2), 0, 5);
1064
1065         icon_3 = gtk_image_new();
1066         gtk_widget_show (icon_3);
1067         gtk_box_pack_start (GTK_BOX (hbox1), icon_3, TRUE, TRUE, 2);
1068         gtk_misc_set_padding (GTK_MISC (icon_3), 0, 5);
1069
1070         icon_4 = gtk_image_new();
1071         gtk_widget_show (icon_4);
1072         gtk_box_pack_start (GTK_BOX (hbox1), icon_4, TRUE, TRUE, 2);
1073         gtk_misc_set_padding (GTK_MISC (icon_4), 0, 5);
1074
1075         icon_5 = gtk_image_new();
1076         gtk_widget_show (icon_5);
1077         gtk_box_pack_start (GTK_BOX (hbox1), icon_5, TRUE, TRUE, 2);
1078         gtk_misc_set_padding (GTK_MISC (icon_5), 0, 5);
1079
1080         icon_6 = gtk_image_new();
1081         gtk_widget_show (icon_6);
1082         gtk_box_pack_start (GTK_BOX (hbox1), icon_6, TRUE, TRUE, 2);
1083         gtk_misc_set_padding (GTK_MISC (icon_6), 0, 5);
1084
1085         icon_7 = gtk_image_new();
1086         gtk_widget_show (icon_7);
1087         gtk_box_pack_start (GTK_BOX (hbox1), icon_7, TRUE, TRUE, 2);
1088         gtk_misc_set_padding (GTK_MISC (icon_7), 0, 5);
1089
1090         PACK_FRAME(vbox1, frame_buttons, _("Actions"));
1091
1092         hbuttonbox1 = gtk_hbutton_box_new ();
1093         gtk_widget_show (hbuttonbox1);
1094         gtk_container_add (GTK_CONTAINER (frame_buttons), hbuttonbox1);
1095         gtk_container_set_border_width (GTK_CONTAINER (hbuttonbox1), 8);
1096         gtk_button_box_set_layout (GTK_BUTTON_BOX (hbuttonbox1), GTK_BUTTONBOX_START);
1097         gtk_box_set_spacing (GTK_BOX (hbuttonbox1), 5);
1098
1099         btn_remove = gtk_button_new_with_label (_("Remove"));
1100         gtk_widget_show (btn_remove);
1101         gtk_container_add (GTK_CONTAINER (hbuttonbox1), btn_remove);
1102         gtk_widget_set_can_default (btn_remove, TRUE);
1103
1104 #ifdef HAVE_SVG
1105         PACK_FRAME(vbox1, frame_scaling, _("SVG rendering"));
1106
1107         vbox2 = gtk_vbox_new (FALSE, VSPACING);
1108         gtk_widget_show (vbox2);
1109         gtk_container_set_border_width (GTK_CONTAINER (vbox2), 5);
1110         gtk_container_add (GTK_CONTAINER (frame_scaling), vbox2);
1111
1112         PACK_CHECK_BUTTON(vbox2, checkbtn_enable_alpha, _("Enable alpha channel"));
1113         PACK_CHECK_BUTTON(vbox2, checkbtn_enable_scaling, _("Force scaling"));
1114         PACK_CHECK_BUTTON(vbox2, checkbtn_scaling_auto, _("Automatic"));
1115
1116         hbox3 = gtk_hbox_new (FALSE, 5);
1117         gtk_widget_show (hbox3);
1118
1119         label_scaling_ppi = gtk_label_new (_("Pixels per inch (PPI)"));
1120         gtk_widget_show (label_scaling_ppi);
1121         gtk_box_pack_start (GTK_BOX (hbox3), label_scaling_ppi,
1122                         FALSE, FALSE, 5);
1123
1124         spinbtn_scaling_ppi_adj = GTK_ADJUSTMENT(
1125                 gtk_adjustment_new (MIN_PPI, MIN_PPI, MAX_PPI, 1, 10, 0));
1126         spinbtn_scaling_ppi = gtk_spin_button_new(
1127                         spinbtn_scaling_ppi_adj, 1.0, 0);
1128         gtk_widget_show (spinbtn_scaling_ppi);
1129         gtk_box_pack_start (GTK_BOX (hbox3), spinbtn_scaling_ppi,
1130                         FALSE, FALSE, 5);
1131
1132         gtk_box_pack_start (GTK_BOX (vbox2), hbox3, FALSE, FALSE, 0);
1133
1134         /* initialize widget values */
1135         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (checkbtn_enable_alpha),
1136                         prefs_common.enable_alpha_svg);
1137         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (checkbtn_enable_scaling),
1138                         prefs_common.enable_pixmap_scaling);
1139         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (checkbtn_scaling_auto),
1140                         prefs_common.pixmap_scaling_auto);
1141         gtk_spin_button_set_value(GTK_SPIN_BUTTON (spinbtn_scaling_ppi),
1142                         prefs_common.pixmap_scaling_ppi);
1143
1144         /* sensitivity */
1145         gtk_widget_set_sensitive(checkbtn_scaling_auto,
1146                         prefs_common.enable_pixmap_scaling);
1147         gtk_widget_set_sensitive(spinbtn_scaling_ppi,
1148                         prefs_common.enable_pixmap_scaling
1149                                 && !prefs_common.pixmap_scaling_auto);
1150         gtk_widget_set_sensitive(label_scaling_ppi,
1151                         prefs_common.enable_pixmap_scaling
1152                                 && !prefs_common.pixmap_scaling_auto);
1153
1154         /* signals */
1155         g_signal_connect(G_OBJECT(checkbtn_enable_scaling), "toggled",
1156                          G_CALLBACK(prefs_themes_checkbtn_enable_scaling_toggled_cb),
1157                          prefs_themes);
1158         g_signal_connect(G_OBJECT(checkbtn_scaling_auto), "toggled",
1159                          G_CALLBACK(prefs_themes_checkbtn_scaling_auto_toggled_cb),
1160                          prefs_themes);
1161 #endif
1162
1163         g_signal_connect(G_OBJECT(btn_remove), "clicked",
1164                          G_CALLBACK(prefs_themes_btn_remove_clicked_cb),
1165                          NULL);
1166         g_signal_connect(G_OBJECT(btn_install), "clicked",
1167                          G_CALLBACK(prefs_themes_btn_install_clicked_cb),
1168                          NULL);
1169
1170         prefs_themes->window = GTK_WIDGET(window);
1171
1172         prefs_themes->name   = label_name;
1173         prefs_themes->author = label_author;
1174         prefs_themes->url    = label_url;
1175         prefs_themes->status = label_status;
1176         prefs_themes->global = label_global_status;
1177
1178         prefs_themes->icons[0] = icon_1;
1179         prefs_themes->icons[1] = icon_2;
1180         prefs_themes->icons[2] = icon_3;
1181         prefs_themes->icons[3] = icon_4;
1182         prefs_themes->icons[4] = icon_5;
1183         prefs_themes->icons[5] = icon_6;
1184         prefs_themes->icons[6] = icon_7;
1185
1186         prefs_themes->btn_remove  = btn_remove;
1187         prefs_themes->btn_install = btn_install;
1188         prefs_themes->btn_more    = btn_more;
1189
1190         prefs_themes->op_menu     = menu_themes;
1191
1192 #ifdef HAVE_SVG
1193         prefs_themes->checkbtn_enable_alpha   = checkbtn_enable_alpha;
1194         prefs_themes->checkbtn_enable_scaling = checkbtn_enable_scaling;
1195         prefs_themes->checkbtn_scaling_auto   = checkbtn_scaling_auto;
1196         prefs_themes->label_scaling_ppi       = label_scaling_ppi;
1197         prefs_themes->spinbtn_scaling_ppi     = spinbtn_scaling_ppi;
1198 #endif
1199
1200         prefs_themes->page.widget = vbox1;
1201
1202         prefs_themes_set_themes_menu(GTK_COMBO_BOX(menu_themes), tdata);
1203         renderer = gtk_cell_renderer_text_new();
1204         gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(menu_themes), renderer, TRUE);
1205         gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(menu_themes), renderer,
1206                                         "text", 0, NULL);
1207
1208         prefs_themes_get_theme_info(tdata);
1209         prefs_themes_display_global_stats(tdata);
1210 }
1211
1212 static void prefs_themes_destroy_widget(PrefsPage *page)
1213 {
1214         /* ThemesPage *theme = (ThemesPage *)page; */
1215 }
1216
1217 static void prefs_themes_save(PrefsPage *page)
1218 {
1219         ThemesData *tdata = prefs_themes_data;
1220         gchar      *theme_str = tdata->displayed;
1221 #ifdef HAVE_SVG
1222         ThemesPage *tpage = (ThemesPage *) page;
1223         gboolean alpha = prefs_common.enable_alpha_svg;
1224         gboolean scaling = prefs_common.enable_pixmap_scaling;
1225         gboolean scaling_auto = prefs_common.pixmap_scaling_auto;
1226         gint scaling_ppi = prefs_common.pixmap_scaling_ppi;
1227
1228         prefs_common.enable_alpha_svg = gtk_toggle_button_get_active(
1229                 GTK_TOGGLE_BUTTON (tpage->checkbtn_enable_alpha));
1230         prefs_common.enable_pixmap_scaling = gtk_toggle_button_get_active(
1231                 GTK_TOGGLE_BUTTON (tpage->checkbtn_enable_scaling));
1232         prefs_common.pixmap_scaling_auto = gtk_toggle_button_get_active(
1233                 GTK_TOGGLE_BUTTON (tpage->checkbtn_scaling_auto));
1234         prefs_common.pixmap_scaling_ppi = gtk_spin_button_get_value_as_int (
1235                 GTK_SPIN_BUTTON (tpage->spinbtn_scaling_ppi));
1236 #endif
1237
1238         if (!IS_CURRENT_THEME(theme_str)) {
1239                 debug_print("Changing theme to %s\n", theme_str);
1240                 g_free(prefs_common.pixmap_theme_path);
1241
1242                 prefs_common.pixmap_theme_path = g_strdup(theme_str);
1243
1244                 main_window_reflect_prefs_all_real(TRUE);
1245                 compose_reflect_prefs_pixmap_theme();
1246                 addrcompl_reflect_prefs_pixmap_theme();
1247
1248                 prefs_themes_update_buttons(tdata);
1249         }
1250 #ifdef HAVE_SVG
1251         else if (scaling != prefs_common.enable_pixmap_scaling
1252                         || alpha != prefs_common.enable_alpha_svg
1253                         || (scaling_auto != prefs_common.pixmap_scaling_auto
1254                                 && scaling_ppi != prefs_common.pixmap_scaling_ppi)) {
1255                 /* same theme, different scaling options */
1256                 debug_print("Updating theme scaling\n");
1257                 stock_pixmap_invalidate_all_icons();
1258                 main_window_reflect_prefs_all_real(TRUE);
1259                 compose_reflect_prefs_pixmap_theme();
1260                 addrcompl_reflect_prefs_pixmap_theme();
1261         }
1262 #endif
1263 }
1264