src/gtk/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and 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 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 <gdk/gdkkeysyms.h>
  27 #include <gdk/gdk.h>
  28 #include <gtk/gtkwidget.h>
  29 #include <gtk/gtkhbbox.h>
  30 #include <gtk/gtkbutton.h>
  31 #include <gtk/gtkctree.h>
  32 #include <gtk/gtkcombo.h>
  33 #include <gtk/gtkbindings.h>
  34 #include <gtk/gtkitemfactory.h>
  35 #include <stdlib.h>
  36 #include <stdarg.h>
  37 #include <sys/stat.h>
  38
  39 #if HAVE_LIBCOMPFACE
  40 #  include <compface.h>
  41 #endif
  42
  43 #if HAVE_LIBCOMPFACE
  44 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  45 #endif
  46
  47 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
  48 #  include <wchar.h>
  49 #  include <wctype.h>
  50 #endif
  51
  52 #include "defs.h"
  53 #include "gtkutils.h"
  54 #include "utils.h"
  55 #include "gtksctree.h"
  56 #include "codeconv.h"
  57 #include "stock_pixmap.h"
  58 #include "menu.h"
  59 #include "prefs_account.h"
  60 #include "prefs_common.h"
  61 #include "manage_window.h"
  62 #include "base64.h"
  63 #include "manual.h"
  64
  65 gboolean gtkut_get_font_size(GtkWidget *widget,
  66                              gint *width, gint *height)
  67 {
  68         PangoLayout *layout;
  69         const gchar *str = "Abcdef";
  70
  71         g_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  72
  73         layout = gtk_widget_create_pango_layout(widget, str);
  74         g_return_val_if_fail(layout, FALSE);
  75         pango_layout_get_pixel_size(layout, width, height);
  76         if (width)
  77                 *width = *width / g_utf8_strlen(str, -1);
  78         g_object_unref(layout);
  79
  80         return TRUE;
  81 }
  82
  83 void gtkut_widget_set_small_font_size(GtkWidget *widget)
  84 {
  85         PangoFontDescription *font_desc;
  86         gint size;
  87
  88         g_return_if_fail(widget != NULL);
  89         g_return_if_fail(widget->style != NULL);
  90
  91         font_desc = pango_font_description_from_string(NORMAL_FONT);
  92         size = pango_font_description_get_size(font_desc);
  93         pango_font_description_set_size(font_desc, size * PANGO_SCALE_SMALL);
  94         gtk_widget_modify_font(widget, font_desc);
  95         pango_font_description_free(font_desc);
  96 }
  97
  98 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
  99 {
 100         g_return_if_fail(color != NULL);
 101
 102         color->pixel = 0L;
 103         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
 104         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
 105         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
 106 }
 107
 108 void gtkut_stock_button_add_help(GtkWidget *bbox, GtkWidget **help_btn)
 109 {
 110         g_return_if_fail(bbox != NULL);
 111
 112         *help_btn = gtk_button_new_from_stock(GTK_STOCK_HELP);
 113
 114         GTK_WIDGET_SET_FLAGS(*help_btn, GTK_CAN_DEFAULT);
 115         gtk_box_pack_end(GTK_BOX (bbox), *help_btn, TRUE, TRUE, 0);
 116         gtk_button_box_set_child_secondary(GTK_BUTTON_BOX (bbox),
 117                         *help_btn, TRUE);
 118         gtk_widget_set_sensitive(*help_btn,
 119                         manual_available(MANUAL_MANUAL_LOCAL));
 120         gtk_widget_show(*help_btn);
 121 }
 122
 123 void gtkut_stock_button_set_create_with_help(GtkWidget **bbox,
 124                 GtkWidget **help_button,
 125                 GtkWidget **button1, const gchar *label1,
 126                 GtkWidget **button2, const gchar *label2,
 127                 GtkWidget **button3, const gchar *label3)
 128 {
 129         g_return_if_fail(bbox != NULL);
 130         g_return_if_fail(button1 != NULL);
 131
 132         gtkut_stock_button_set_create(bbox, button1, label1,
 133                         button2, label2, button3, label3);
 134
 135         gtkut_stock_button_add_help(*bbox, help_button);
 136 }
 137
 138 void gtkut_stock_button_set_create(GtkWidget **bbox,
 139                                    GtkWidget **button1, const gchar *label1,
 140                                    GtkWidget **button2, const gchar *label2,
 141                                    GtkWidget **button3, const gchar *label3)
 142 {
 143         g_return_if_fail(bbox != NULL);
 144         g_return_if_fail(button1 != NULL);
 145
 146         *bbox = gtk_hbutton_box_new();
 147         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 148         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 149
 150         *button1 = gtk_button_new_from_stock(label1);
 151         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
 152         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 153         gtk_widget_show(*button1);
 154
 155         if (button2) {
 156                 *button2 = gtk_button_new_from_stock(label2);
 157                 GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
 158                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 159                 gtk_widget_show(*button2);
 160         }
 161
 162         if (button3) {
 163                 *button3 = gtk_button_new_from_stock(label3);
 164                 GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
 165                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 166                 gtk_widget_show(*button3);
 167         }
 168 }
 169
 170 static void combo_button_size_request(GtkWidget *widget,
 171                                       GtkRequisition *requisition,
 172                                       gpointer data)
 173 {
 174         ComboButton *combo = (ComboButton *)data;
 175
 176         if (combo->arrow->allocation.height != requisition->height)
 177                 gtk_widget_set_size_request(combo->arrow,
 178                                             -1, requisition->height);
 179 }
 180
 181 static void combo_button_enter(GtkWidget *widget, gpointer data)
 182 {
 183         ComboButton *combo = (ComboButton *)data;
 184
 185         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_PRELIGHT) {
 186                 gtk_widget_set_state(combo->arrow, GTK_STATE_PRELIGHT);
 187                 gtk_widget_queue_draw(combo->arrow);
 188         }
 189         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_PRELIGHT) {
 190                 gtk_widget_set_state(combo->button, GTK_STATE_PRELIGHT);
 191                 gtk_widget_queue_draw(combo->button);
 192         }
 193 }
 194
 195 static void combo_button_leave(GtkWidget *widget, gpointer data)
 196 {
 197         ComboButton *combo = (ComboButton *)data;
 198
 199         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_NORMAL) {
 200                 gtk_widget_set_state(combo->arrow, GTK_STATE_NORMAL);
 201                 gtk_widget_queue_draw(combo->arrow);
 202         }
 203         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_NORMAL) {
 204                 gtk_widget_set_state(combo->button, GTK_STATE_NORMAL);
 205                 gtk_widget_queue_draw(combo->button);
 206         }
 207 }
 208
 209 static gint combo_button_arrow_pressed(GtkWidget *widget, GdkEventButton *event,
 210                                        gpointer data)
 211 {
 212         ComboButton *combo = (ComboButton *)data;
 213
 214         if (!event) return FALSE;
 215
 216         gtk_menu_popup(GTK_MENU(combo->menu), NULL, NULL,
 217                        menu_button_position, combo->button,
 218                        event->button, event->time);
 219
 220         return FALSE;
 221 }
 222
 223 static void combo_button_destroy(GtkWidget *widget, gpointer data)
 224 {
 225         ComboButton *combo = (ComboButton *)data;
 226
 227         gtk_object_destroy(GTK_OBJECT(combo->factory));
 228         g_free(combo);
 229 }
 230
 231 ComboButton *gtkut_combo_button_create(GtkWidget *button,
 232                                        GtkItemFactoryEntry *entries,
 233                                        gint n_entries, const gchar *path,
 234                                        gpointer data)
 235 {
 236         ComboButton *combo;
 237         GtkWidget *arrow;
 238
 239         combo = g_new0(ComboButton, 1);
 240
 241         combo->arrow = gtk_button_new();
 242         arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
 243         gtk_widget_set_size_request(arrow, 7, -1);
 244         gtk_container_add(GTK_CONTAINER(combo->arrow), arrow);
 245         GTK_WIDGET_UNSET_FLAGS(combo->arrow, GTK_CAN_FOCUS);
 246         gtk_widget_show_all(combo->arrow);
 247
 248         combo->button = button;
 249         combo->menu = menu_create_items(entries, n_entries, path,
 250                                         &combo->factory, data);
 251         combo->data = data;
 252
 253         g_signal_connect(G_OBJECT(combo->button), "size_request",
 254                          G_CALLBACK(combo_button_size_request), combo);
 255         g_signal_connect(G_OBJECT(combo->button), "enter",
 256                          G_CALLBACK(combo_button_enter), combo);
 257         g_signal_connect(G_OBJECT(combo->button), "leave",
 258                          G_CALLBACK(combo_button_leave), combo);
 259         g_signal_connect(G_OBJECT(combo->arrow), "enter",
 260                          G_CALLBACK(combo_button_enter), combo);
 261         g_signal_connect(G_OBJECT(combo->arrow), "leave",
 262                          G_CALLBACK(combo_button_leave), combo);
 263         g_signal_connect(G_OBJECT(combo->arrow), "button_press_event",
 264                          G_CALLBACK(combo_button_arrow_pressed), combo);
 265         g_signal_connect(G_OBJECT(combo->arrow), "destroy",
 266                          G_CALLBACK(combo_button_destroy), combo);
 267
 268         return combo;
 269 }
 270
 271 #define CELL_SPACING 1
 272 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 273                                     (((row) + 1) * CELL_SPACING) + \
 274                                     (clist)->voffset)
 275 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 276                                    ((clist)->row_height + CELL_SPACING))
 277
 278 void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node, gint _row)
 279 {
 280         GtkCList *clist = GTK_CLIST(ctree);
 281         gint row;
 282         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 283
 284         g_return_if_fail(ctree != NULL);
 285         g_return_if_fail(node != NULL);
 286
 287         row = (_row != -1 ? _row : g_list_position(clist->row_list, (GList *)node));
 288
 289         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 290         row_visibility = gtk_clist_row_is_visible(clist, row);
 291         prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
 292         next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
 293
 294         if (row_visibility == GTK_VISIBILITY_NONE) {
 295                 gtk_clist_moveto(clist, row, -1, 0.5, 0);
 296                 return;
 297         }
 298         if (row_visibility == GTK_VISIBILITY_FULL &&
 299             prev_row_visibility == GTK_VISIBILITY_FULL &&
 300             next_row_visibility == GTK_VISIBILITY_FULL)
 301                 return;
 302         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 303             next_row_visibility != GTK_VISIBILITY_FULL)
 304                 return;
 305
 306         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 307                 gtk_clist_moveto(clist, row, -1, 0.2, 0);
 308                 return;
 309         }
 310         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 311                 gtk_clist_moveto(clist, row, -1, 0.8, 0);
 312                 return;
 313         }
 314 }
 315
 316 #undef CELL_SPACING
 317 #undef ROW_TOP_YPIXEL
 318 #undef ROW_FROM_YPIXEL
 319
 320 gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
 321 {
 322         g_return_val_if_fail(ctree != NULL, -1);
 323         g_return_val_if_fail(node != NULL, -1);
 324
 325         return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
 326 }
 327
 328 /* get the next node, including the invisible one */
 329 GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
 330 {
 331         GtkCTreeNode *parent;
 332
 333         if (!node) return NULL;
 334
 335         if (GTK_CTREE_ROW(node)->children)
 336                 return GTK_CTREE_ROW(node)->children;
 337
 338         if (GTK_CTREE_ROW(node)->sibling)
 339                 return GTK_CTREE_ROW(node)->sibling;
 340
 341         for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
 342              parent = GTK_CTREE_ROW(parent)->parent) {
 343                 if (GTK_CTREE_ROW(parent)->sibling)
 344                         return GTK_CTREE_ROW(parent)->sibling;
 345         }
 346
 347         return NULL;
 348 }
 349
 350 /* get the previous node, including the invisible one */
 351 GtkCTreeNode *gtkut_ctree_node_prev(GtkCTree *ctree, GtkCTreeNode *node)
 352 {
 353         GtkCTreeNode *prev;
 354         GtkCTreeNode *child;
 355
 356         if (!node) return NULL;
 357
 358         prev = GTK_CTREE_NODE_PREV(node);
 359         if (prev == GTK_CTREE_ROW(node)->parent)
 360                 return prev;
 361
 362         child = prev;
 363         while (GTK_CTREE_ROW(child)->children != NULL) {
 364                 child = GTK_CTREE_ROW(child)->children;
 365                 while (GTK_CTREE_ROW(child)->sibling != NULL)
 366                         child = GTK_CTREE_ROW(child)->sibling;
 367         }
 368
 369         return child;
 370 }
 371
 372 gboolean gtkut_ctree_node_is_selected(GtkCTree *ctree, GtkCTreeNode *node)
 373 {
 374         GtkCList *clist = GTK_CLIST(ctree);
 375         GList *cur;
 376
 377         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 378                 if (node == GTK_CTREE_NODE(cur->data))
 379                         return TRUE;
 380         }
 381
 382         return FALSE;
 383 }
 384
 385 GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
 386                                                 GtkCTreeNode *node)
 387 {
 388         if (!node) return NULL;
 389
 390         while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
 391                 if (!GTK_CTREE_ROW(node)->expanded)
 392                         return node;
 393         }
 394
 395         return NULL;
 396 }
 397
 398 void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
 399 {
 400         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 401                 gtk_ctree_expand(ctree, node);
 402 }
 403
 404 gboolean gtkut_ctree_node_is_parent(GtkCTreeNode *parent, GtkCTreeNode *node)
 405 {
 406         GtkCTreeNode *tmp;
 407         g_return_val_if_fail(node != NULL, FALSE);
 408         g_return_val_if_fail(parent != NULL, FALSE);
 409         tmp = node;
 410
 411         while (tmp) {
 412                 if(GTK_CTREE_ROW(tmp)->parent && GTK_CTREE_ROW(tmp)->parent == parent)
 413                         return TRUE;
 414                 tmp = GTK_CTREE_ROW(tmp)->parent;
 415         }
 416
 417         return FALSE;
 418 }
 419
 420 void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
 421 {
 422         if (node == NULL)
 423                 return;
 424         gtkut_clist_set_focus_row(GTK_CLIST(ctree),
 425                                   gtkut_ctree_get_nth_from_node(ctree, node));
 426 }
 427
 428 void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
 429 {
 430         clist->focus_row = row;
 431         GTKUT_CTREE_REFRESH(clist);
 432 }
 433
 434 void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
 435 {
 436         va_list args;
 437         gchar *s;
 438         GList *combo_items = NULL;
 439
 440         g_return_if_fail(str1 != NULL);
 441
 442         combo_items = g_list_append(combo_items, (gpointer)str1);
 443         va_start(args, str1);
 444         s = va_arg(args, gchar*);
 445         while (s) {
 446                 combo_items = g_list_append(combo_items, (gpointer)s);
 447                 s = va_arg(args, gchar*);
 448         }
 449         va_end(args);
 450
 451         gtk_combo_set_popdown_strings(combo, combo_items);
 452
 453         g_list_free(combo_items);
 454 }
 455
 456 gchar *gtkut_editable_get_selection(GtkEditable *editable)
 457 {
 458         guint start_pos, end_pos;
 459         gboolean found;
 460
 461         g_return_val_if_fail(GTK_IS_EDITABLE(editable), NULL);
 462
 463         found = gtk_editable_get_selection_bounds(editable,
 464                                                   &start_pos, &end_pos);
 465         if (found)
 466                 return gtk_editable_get_chars(editable, start_pos, end_pos);
 467         else
 468                 return NULL;
 469 }
 470
 471 void gtkut_editable_disable_im(GtkEditable *editable)
 472 {
 473         g_return_if_fail(editable != NULL);
 474
 475 #if USE_XIM
 476         if (editable->ic) {
 477                 gdk_ic_destroy(editable->ic);
 478                 editable->ic = NULL;
 479         }
 480         if (editable->ic_attr) {
 481                 gdk_ic_attr_destroy(editable->ic_attr);
 482                 editable->ic_attr = NULL;
 483         }
 484 #endif
 485 }
 486
 487 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 488 {
 489         gtk_container_remove(container, widget);
 490 }
 491
 492 gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf,
 493                                         const GtkTextIter *iter,
 494                                         gunichar *wcs, gint len,
 495                                         gboolean case_sens)
 496 {
 497         GtkTextIter start_iter, end_iter;
 498         gchar *utf8str, *p;
 499         gint match_count;
 500
 501         start_iter = end_iter = *iter;
 502         gtk_text_iter_forward_chars(&end_iter, len);
 503
 504         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter,
 505                                            FALSE);
 506         if (!utf8str) return FALSE;
 507
 508         if ((gint)g_utf8_strlen(utf8str, -1) != len) {
 509                 g_free(utf8str);
 510                 return FALSE;
 511         }
 512
 513         for (p = utf8str, match_count = 0;
 514              *p != '\0' && match_count < len;
 515              p = g_utf8_next_char(p), match_count++) {
 516                 gunichar wc;
 517
 518                 wc = g_utf8_get_char(p);
 519
 520                 if (case_sens) {
 521                         if (wc != wcs[match_count])
 522                                 break;
 523                 } else {
 524                         if (g_unichar_tolower(wc) !=
 525                             g_unichar_tolower(wcs[match_count]))
 526                                 break;
 527                 }
 528         }
 529
 530         g_free(utf8str);
 531
 532         if (match_count == len)
 533                 return TRUE;
 534         else
 535                 return FALSE;
 536 }
 537
 538 gboolean gtkut_text_buffer_find(GtkTextBuffer *buffer, const GtkTextIter *iter,
 539                                 const gchar *str, gboolean case_sens,
 540                                 GtkTextIter *match_pos)
 541 {
 542         gunichar *wcs;
 543         gint len;
 544         glong items_read = 0, items_written = 0;
 545         GError *error = NULL;
 546         GtkTextIter iter_;
 547         gboolean found = FALSE;
 548
 549         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 550         if (error != NULL) {
 551                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n",
 552                           error->message);
 553                 g_error_free(error);
 554         }
 555         if (!wcs || items_written <= 0) return FALSE;
 556         len = (gint)items_written;
 557
 558         iter_ = *iter;
 559         do {
 560                 found = gtkut_text_buffer_match_string
 561                         (buffer, &iter_, wcs, len, case_sens);
 562                 if (found) {
 563                         *match_pos = iter_;
 564                         break;
 565                 }
 566         } while (gtk_text_iter_forward_char(&iter_));
 567
 568         g_free(wcs);
 569
 570         return found;
 571 }
 572
 573 gboolean gtkut_text_buffer_find_backward(GtkTextBuffer *buffer,
 574                                          const GtkTextIter *iter,
 575                                          const gchar *str, gboolean case_sens,
 576                                          GtkTextIter *match_pos)
 577 {
 578         gunichar *wcs;
 579         gint len;
 580         glong items_read = 0, items_written = 0;
 581         GError *error = NULL;
 582         GtkTextIter iter_;
 583         gboolean found = FALSE;
 584
 585         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 586         if (error != NULL) {
 587                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n", error->message);
 588                 g_error_free(error);
 589         }
 590         if (!wcs || items_written <= 0) return FALSE;
 591         len = (gint)items_written;
 592
 593         iter_ = *iter;
 594         while (gtk_text_iter_backward_char(&iter_)) {
 595                 found = gtkut_text_buffer_match_string
 596                         (buffer, &iter_, wcs, len, case_sens);
 597                 if (found) {
 598                         *match_pos = iter_;
 599                         break;
 600                 }
 601         }
 602
 603         g_free(wcs);
 604
 605         return found;
 606 }
 607
 608 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 609 {
 610         GtkTextBuffer *buffer;
 611         GtkTextIter start_iter, end_iter;
 612         gboolean found;
 613
 614         g_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 615
 616         buffer = gtk_text_view_get_buffer(textview);
 617         found = gtk_text_buffer_get_selection_bounds(buffer,
 618                                                      &start_iter,
 619                                                      &end_iter);
 620         if (found)
 621                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 622                                                 FALSE);
 623         else
 624                 return NULL;
 625 }
 626
 627
 628 void gtkut_text_view_set_position(GtkTextView *text, gint pos)
 629 {
 630         GtkTextBuffer *buffer;
 631         GtkTextIter iter;
 632
 633         g_return_if_fail(text != NULL);
 634
 635         buffer = gtk_text_view_get_buffer(text);
 636
 637         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
 638         gtk_text_buffer_place_cursor(buffer, &iter);
 639         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
 640 }
 641
 642 gboolean gtkut_text_view_search_string(GtkTextView *text, const gchar *str,
 643                                         gboolean case_sens)
 644 {
 645         GtkTextBuffer *buffer;
 646         GtkTextIter iter, match_pos;
 647         GtkTextMark *mark;
 648         gint len;
 649
 650         g_return_val_if_fail(text != NULL, FALSE);
 651         g_return_val_if_fail(str != NULL, FALSE);
 652
 653         buffer = gtk_text_view_get_buffer(text);
 654
 655         len = g_utf8_strlen(str, -1);
 656         g_return_val_if_fail(len >= 0, FALSE);
 657
 658         mark = gtk_text_buffer_get_insert(buffer);
 659         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 660
 661         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
 662                                    &match_pos)) {
 663                 GtkTextIter end = match_pos;
 664
 665                 gtk_text_iter_forward_chars(&end, len);
 666                 /* place "insert" at the last character */
 667                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
 668                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 669                 return TRUE;
 670         }
 671
 672         return FALSE;
 673 }
 674
 675 gboolean gtkut_text_view_search_string_backward(GtkTextView *text, const gchar *str,
 676                                         gboolean case_sens)
 677 {
 678         GtkTextBuffer *buffer;
 679         GtkTextIter iter, match_pos;
 680         GtkTextMark *mark;
 681         gint len;
 682
 683         g_return_val_if_fail(text != NULL, FALSE);
 684         g_return_val_if_fail(str != NULL, FALSE);
 685
 686         buffer = gtk_text_view_get_buffer(text);
 687
 688         len = g_utf8_strlen(str, -1);
 689         g_return_val_if_fail(len >= 0, FALSE);
 690
 691         mark = gtk_text_buffer_get_insert(buffer);
 692         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 693
 694         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
 695                                             &match_pos)) {
 696                 GtkTextIter end = match_pos;
 697
 698                 gtk_text_iter_forward_chars(&end, len);
 699                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
 700                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 701                 return TRUE;
 702         }
 703
 704         return FALSE;
 705 }
 706
 707 void gtkut_window_popup(GtkWidget *window)
 708 {
 709         gint x, y, sx, sy, new_x, new_y;
 710
 711         g_return_if_fail(window != NULL);
 712         g_return_if_fail(window->window != NULL);
 713
 714         sx = gdk_screen_width();
 715         sy = gdk_screen_height();
 716
 717         gdk_window_get_origin(window->window, &x, &y);
 718         new_x = x % sx; if (new_x < 0) new_x = 0;
 719         new_y = y % sy; if (new_y < 0) new_y = 0;
 720         if (new_x != x || new_y != y)
 721                 gdk_window_move(window->window, new_x, new_y);
 722
 723         gtk_window_present(GTK_WINDOW(window));
 724 }
 725
 726 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 727 {
 728         gint x, y;
 729         gint sx, sy;
 730
 731         g_return_if_fail(widget != NULL);
 732         g_return_if_fail(widget->window != NULL);
 733
 734         sx = gdk_screen_width();
 735         sy = gdk_screen_height();
 736
 737         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 738         gdk_window_get_root_origin(widget->window, &x, &y);
 739
 740         x %= sx; if (x < 0) x = 0;
 741         y %= sy; if (y < 0) y = 0;
 742         *px = x;
 743         *py = y;
 744 }
 745
 746 void gtkut_widget_draw_now(GtkWidget *widget)
 747 {
 748         if (GTK_WIDGET_VISIBLE(widget) && GTK_WIDGET_DRAWABLE(widget))
 749                 gdk_window_process_updates(widget->window, FALSE);
 750 }
 751
 752 static void gtkut_clist_bindings_add(GtkWidget *clist)
 753 {
 754         GtkBindingSet *binding_set;
 755
 756         binding_set = gtk_binding_set_by_class
 757                 (GTK_CLIST_GET_CLASS(clist));
 758
 759         gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
 760                                      "scroll_vertical", 2,
 761                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 762                                      G_TYPE_FLOAT, 0.0);
 763         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 764                                      "scroll_vertical", 2,
 765                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 766                                      G_TYPE_FLOAT, 0.0);
 767 }
 768
 769 void gtkut_widget_init(void)
 770 {
 771         GtkWidget *clist;
 772
 773         clist = gtk_clist_new(1);
 774         g_object_ref(G_OBJECT(clist));
 775         gtk_object_sink(G_OBJECT(clist));
 776         gtkut_clist_bindings_add(clist);
 777         g_object_unref(G_OBJECT(clist));
 778
 779         clist = gtk_ctree_new(1, 0);
 780         g_object_ref(G_OBJECT(clist));
 781         gtk_object_sink(G_OBJECT(clist));
 782         gtkut_clist_bindings_add(clist);
 783         g_object_unref(G_OBJECT(clist));
 784
 785         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 786         g_object_ref(G_OBJECT(clist));
 787         gtk_object_sink(G_OBJECT(clist));
 788         gtkut_clist_bindings_add(clist);
 789         g_object_unref(G_OBJECT(clist));
 790 }
 791
 792 void gtkut_widget_set_app_icon(GtkWidget *widget)
 793 {
 794 #include "pixmaps/claws-mail.xpm"
 795         static GdkPixmap *sylpheedclawsxpm;
 796         static GdkBitmap *sylpheedclawsxpmmask;
 797
 798         g_return_if_fail(widget != NULL);
 799         g_return_if_fail(widget->window != NULL);
 800         if (!sylpheedclawsxpm) {
 801                 PIXMAP_CREATE(widget, sylpheedclawsxpm, sylpheedclawsxpmmask,
 802                               claws_mail_xpm);
 803         }
 804         gdk_window_set_icon(widget->window, NULL, sylpheedclawsxpm, sylpheedclawsxpmmask);
 805 }
 806
 807 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 808 {
 809         static GdkPixmap *xpm;
 810         static GdkBitmap *bmp;
 811
 812         g_return_if_fail(widget != NULL);
 813         g_return_if_fail(widget->window != NULL);
 814         if (!xpm) {
 815                 stock_pixmap_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &xpm, &bmp);
 816         }
 817         gdk_window_set_icon(widget->window, NULL, xpm, bmp);
 818 }
 819
 820 GtkWidget *label_window_create(const gchar *str)
 821 {
 822         GtkWidget *window;
 823         GtkWidget *label;
 824
 825         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 826         gtk_widget_set_size_request(window, 380, 60);
 827         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 828         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 829         gtk_window_set_title(GTK_WINDOW(window), str);
 830         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 831         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 832         manage_window_set_transient(GTK_WINDOW(window));
 833
 834         label = gtk_label_new(str);
 835         gtk_container_add(GTK_CONTAINER(window), label);
 836         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 837         gtk_widget_show(label);
 838
 839         gtk_widget_show_now(window);
 840
 841         GTK_EVENTS_FLUSH();
 842
 843         return window;
 844 }
 845
 846 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 847                                   GCallback              callback,
 848                                   gpointer               data)
 849 {
 850         GList *cur_ac;
 851         GtkWidget *menu;
 852
 853         g_return_val_if_fail(ac_list != NULL, NULL);
 854
 855         menu = gtk_menu_new();
 856
 857         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 858                 gchar *name;
 859                 GtkWidget *menuitem;
 860                 PrefsAccount *account;
 861
 862                 account = (PrefsAccount *) cur_ac->data;
 863                 if (account->name)
 864                         name = g_strdup_printf("%s: %s <%s>",
 865                                                account->account_name,
 866                                                account->name,
 867                                                account->address);
 868                 else
 869                         name = g_strdup_printf("%s: %s",
 870                                                account->account_name,
 871                                                account->address);
 872                 MENUITEM_ADD(menu, menuitem, name, account->account_id);
 873                 g_free(name);
 874                 if (callback != NULL)
 875                         g_signal_connect(G_OBJECT(menuitem), "activate",
 876                                          callback, data);
 877         }
 878         return menu;
 879 }
 880
 881 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 882 {
 883         GtkStyle *newstyle;
 884         GdkColor gdk_color;
 885
 886         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 887         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 888         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 889         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 890         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 891         gtk_widget_set_style(widget, newstyle);
 892 }
 893
 894 /*!
 895  *\brief        Tries to find a focused child using a lame strategy
 896  */
 897 GtkWidget *gtkut_get_focused_child(GtkContainer *parent)
 898 {
 899         GtkWidget *result = NULL;
 900         GList *child_list = NULL;
 901         GList *c;
 902
 903         g_return_val_if_fail(parent, NULL);
 904
 905         /* Get children list and see which has the focus. */
 906         child_list = gtk_container_get_children(parent);
 907         if (!child_list)
 908                 return NULL;
 909
 910         for (c = child_list; c != NULL; c = g_list_next(c)) {
 911                 if (c->data && GTK_IS_WIDGET(c->data)) {
 912                         if (GTK_WIDGET_HAS_FOCUS(GTK_WIDGET(c->data))) {
 913                                 result = GTK_WIDGET(c->data);
 914                                 break;
 915                         }
 916                 }
 917         }
 918
 919         /* See if the returned widget is a container itself; if it is,
 920          * see if one of its children is focused. If the focused
 921          * container has no focused child, it is itself a focusable
 922          * child, and has focus. */
 923         if (result && GTK_IS_CONTAINER(result)) {
 924                 GtkWidget *tmp =  gtkut_get_focused_child(GTK_CONTAINER(result));
 925
 926                 if (tmp)
 927                         result = tmp;
 928         } else {
 929                 /* Try the same for each container in the chain */
 930                 for (c = child_list; c != NULL && !result; c = g_list_next(c)) {
 931                         if (c->data && GTK_IS_WIDGET(c->data)
 932                         &&  GTK_IS_CONTAINER(c->data)) {
 933                                 result = gtkut_get_focused_child
 934                                         (GTK_CONTAINER(c->data));
 935                         }
 936                 }
 937
 938         }
 939
 940         g_list_free(child_list);
 941
 942         return result;
 943 }
 944
 945 /*!
 946  *\brief        Create a Browse (file) button based on GTK+ stock
 947  */
 948 GtkWidget *gtkut_get_browse_file_btn(const gchar *button_label)
 949 {
 950         GtkWidget *button;
 951
 952         button = gtk_button_new_with_mnemonic(button_label);
 953         gtk_button_set_image(GTK_BUTTON(button),
 954                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 955
 956         return button;
 957 }
 958
 959 /*!
 960  *\brief        Create a Browse (directory) button based on GTK+ stock
 961  */
 962 GtkWidget *gtkut_get_browse_directory_btn(const gchar *button_label)
 963 {
 964         GtkWidget *button;
 965
 966         button = gtk_button_new_with_mnemonic(button_label);
 967         gtk_button_set_image(GTK_BUTTON(button),
 968                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 969
 970         return button;
 971 }
 972
 973 GtkWidget *gtkut_get_replace_btn(const gchar *button_label)
 974 {
 975         GtkWidget *button;
 976
 977         button = gtk_button_new_with_mnemonic(button_label);
 978         gtk_button_set_image(GTK_BUTTON(button),
 979                 gtk_image_new_from_stock(GTK_STOCK_REFRESH, GTK_ICON_SIZE_BUTTON));
 980
 981         return button;
 982 }
 983
 984 #if HAVE_LIBCOMPFACE
 985 gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
 986 {
 987         static gchar *bit_pattern[] = {
 988                 "....",
 989                 "...#",
 990                 "..#.",
 991                 "..##",
 992                 ".#..",
 993                 ".#.#",
 994                 ".##.",
 995                 ".###",
 996                 "#...",
 997                 "#..#",
 998                 "#.#.",
 999                 "#.##",
1000                 "##..",
1001                 "##.#",
1002                 "###.",
1003                 "####"
1004         };
1005
1006         static gchar *xface_header = "48 48 2 1";
1007         static gchar *xface_black  = "# c #000000";
1008         static gchar *xface_white  = ". c #ffffff";
1009
1010         gint i, line = 0;
1011         const guchar *p;
1012         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
1013
1014         p = xface;
1015
1016         strcpy(xpm[line++], xface_header);
1017         strcpy(xpm[line++], xface_black);
1018         strcpy(xpm[line++], xface_white);
1019
1020         for (i = 0; i < HEIGHT; i++) {
1021                 gint col;
1022
1023                 buf[0] = '\0';
1024
1025                 for (col = 0; col < 3; col++) {
1026                         gint figure;
1027
1028                         p += 2;  /* skip '0x' */
1029
1030                         for (figure = 0; figure < 4; figure++) {
1031                                 gint n = 0;
1032
1033                                 if ('0' <= *p && *p <= '9') {
1034                                         n = *p - '0';
1035                                 } else if ('a' <= *p && *p <= 'f') {
1036                                         n = *p - 'a' + 10;
1037                                 } else if ('A' <= *p && *p <= 'F') {
1038                                         n = *p - 'A' + 10;
1039                                 }
1040
1041                                 strcat(buf, bit_pattern[n]);
1042                                 p++;  /* skip ',' */
1043                         }
1044
1045                         p++;  /* skip '\n' */
1046                 }
1047
1048                 strcpy(xpm[line++], buf);
1049                 p++;
1050         }
1051
1052         return 0;
1053 }
1054 #endif
1055
1056 gboolean get_tag_range(GtkTextIter *iter,
1057                                        GtkTextTag *tag,
1058                                        GtkTextIter *start_iter,
1059                                        GtkTextIter *end_iter)
1060 {
1061         GtkTextIter _start_iter, _end_iter;
1062
1063         _end_iter = *iter;
1064         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1065                 debug_print("Can't find end");
1066                 return FALSE;
1067         }
1068
1069         _start_iter = _end_iter;
1070         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1071                 debug_print("Can't find start.");
1072                 return FALSE;
1073         }
1074
1075         *start_iter = _start_iter;
1076         *end_iter = _end_iter;
1077
1078         return TRUE;
1079 }
1080
1081 #if HAVE_LIBCOMPFACE
1082 GtkWidget *xface_get_from_header(const gchar *o_xface, GdkColor *background,
1083                                  GdkWindow *window)
1084 {
1085         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1086         static gboolean xpm_xface_init = TRUE;
1087         GdkPixmap *pixmap;
1088         GdkBitmap *mask;
1089         gchar xface[2048];
1090         strncpy(xface, o_xface, sizeof(xface));
1091
1092         if (!window) {
1093                 g_warning("no window\n");
1094                 return NULL;
1095         }
1096         if (uncompface(xface) < 0) {
1097                 g_warning("uncompface failed\n");
1098                 return NULL;
1099         }
1100
1101         if (xpm_xface_init) {
1102                 gint i;
1103
1104                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1105                         xpm_xface[i] = g_malloc(WIDTH + 1);
1106                         *xpm_xface[i] = '\0';
1107                 }
1108                 xpm_xface_init = FALSE;
1109         }
1110
1111         create_xpm_from_xface(xpm_xface, xface);
1112
1113         pixmap = gdk_pixmap_create_from_xpm_d
1114                 (window, &mask,
1115                  background, xpm_xface);
1116         return gtk_image_new_from_pixmap(pixmap, mask);
1117 }
1118 #endif
1119
1120 GtkWidget *face_get_from_header(const gchar *o_face)
1121 {
1122         gchar face[2048];
1123         gchar face_png[2048];
1124         gint pngsize;
1125         GdkPixbuf *pixbuf;
1126         GError *error = NULL;
1127         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
1128         GtkWidget *image;
1129
1130         if (o_face == NULL || strlen(o_face) == 0)
1131                 return NULL;
1132
1133         strncpy2(face, o_face, sizeof(face));
1134
1135         unfold_line(face); /* strip all whitespace and linebreaks */
1136         remove_space(face);
1137
1138         pngsize = base64_decode(face_png, face, strlen(face));
1139
1140         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
1141             !gdk_pixbuf_loader_close (loader, &error)) {
1142                 g_warning("loading face failed\n");
1143                 g_object_unref(loader);
1144                 return NULL;
1145         }
1146
1147         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
1148
1149         g_object_unref(loader);
1150
1151         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
1152                 g_object_unref(pixbuf);
1153                 g_warning("wrong_size");
1154                 return NULL;
1155         }
1156
1157         image = gtk_image_new_from_pixbuf(pixbuf);
1158         g_object_unref(pixbuf);
1159         return image;
1160 }
1161
1162 static GdkCursor *hand_cursor = NULL;
1163
1164 static void link_btn_enter(GtkButton *button, gpointer data)
1165 {
1166         GtkWidget *window = (GtkWidget *)data;
1167
1168         if (!hand_cursor)
1169                 hand_cursor = gdk_cursor_new(GDK_HAND2);
1170         if (window && window->window)
1171                 gdk_window_set_cursor(window->window, hand_cursor);
1172
1173         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1174         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1175
1176 }
1177
1178 static void link_btn_leave(GtkButton *button, gpointer data)
1179 {
1180         GtkWidget *window = (GtkWidget *)data;
1181
1182         if (window && window->window)
1183                 gdk_window_set_cursor(window->window, NULL);
1184
1185         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1186         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1187 }
1188
1189 static void link_btn_pressed(GtkButton *button, gpointer data)
1190 {
1191         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1192         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1193 }
1194
1195 static void link_btn_released(GtkButton *button, gpointer data)
1196 {
1197         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1198         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1199 }
1200
1201 static void link_btn_clicked(GtkButton *button, gpointer data)
1202 {
1203         gchar *url = (gchar *)data;
1204         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1205         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1206         open_uri(url, prefs_common.uri_cmd);
1207 }
1208
1209 static void link_btn_unrealize(GtkButton *button, gpointer data)
1210 {
1211         gchar *url = (gchar *)data;
1212         g_signal_handlers_disconnect_by_func(G_OBJECT(button),
1213                          G_CALLBACK(link_btn_clicked), url);
1214         g_free(url);
1215 }
1216
1217 GtkWidget *gtkut_get_link_btn(GtkWidget *window, const gchar *url, const gchar *label)
1218 {
1219         GtkWidget *btn;
1220         GtkWidget *btn_label;
1221         GdkColormap *cmap;
1222         GdkColor uri_color[2] = {{0, 0, 0, 0xffff}, {0, 0xffff, 0, 0}};
1223         gboolean success[2];
1224         gchar *local_url = NULL;
1225         if (!url)
1226                 return NULL;
1227
1228         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1229                                                &uri_color[0]);
1230         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1231                                                &uri_color[1]);
1232
1233         btn = gtk_button_new_with_label(label?label:url);
1234         gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
1235         btn_label = GTK_BIN(btn)->child;
1236         cmap = gdk_drawable_get_colormap(window->window);
1237         gdk_colormap_alloc_colors(cmap, uri_color, 2, FALSE, TRUE, success);
1238         if (success[0] == TRUE && success[1] == TRUE) {
1239                 GtkStyle *style;
1240                 gtk_widget_ensure_style(btn_label);
1241                 style = gtk_style_copy
1242                         (gtk_widget_get_style(btn_label));
1243                 style->fg[GTK_STATE_NORMAL]   = uri_color[0];
1244                 style->fg[GTK_STATE_ACTIVE]   = uri_color[1];
1245                 style->fg[GTK_STATE_PRELIGHT] = uri_color[0];
1246                 gtk_widget_set_style(btn_label, style);
1247         } else
1248                 g_warning("about_create(): color allocation failed.\n");
1249
1250         g_signal_connect(G_OBJECT(btn), "enter",
1251                          G_CALLBACK(link_btn_enter), window);
1252         g_signal_connect(G_OBJECT(btn), "leave",
1253                          G_CALLBACK(link_btn_leave), window);
1254         g_signal_connect(G_OBJECT(btn), "pressed",
1255                          G_CALLBACK(link_btn_pressed), window);
1256         g_signal_connect(G_OBJECT(btn), "released",
1257                          G_CALLBACK(link_btn_released), window);
1258
1259         local_url = g_strdup(url);
1260         g_signal_connect(G_OBJECT(btn), "clicked",
1261                          G_CALLBACK(link_btn_clicked), local_url);
1262         g_signal_connect(G_OBJECT(btn), "unrealize",
1263                          G_CALLBACK(link_btn_unrealize), local_url);
1264         return btn;
1265 }
1266
1267 GtkWidget *gtkut_sc_combobox_create(GtkWidget *eventbox, gboolean focus_on_click)
1268 {
1269         GtkWidget *combobox;
1270         GtkListStore *menu;
1271         GtkCellRenderer *rend;
1272
1273         menu = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT);
1274
1275         combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(menu));
1276
1277         rend = gtk_cell_renderer_text_new();
1278         gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), rend, TRUE);
1279         gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combobox), rend,
1280                         "markup", 0,
1281                         NULL);
1282
1283         if( eventbox != NULL )
1284                 gtk_container_add(GTK_CONTAINER(eventbox), combobox);
1285 #if GTK_CHECK_VERSION(2,6,0)
1286         gtk_combo_box_set_focus_on_click(GTK_COMBO_BOX(combobox), focus_on_click);
1287 #endif
1288         return combobox;
1289 }
1290
1291 static void gtkutils_smooth_scroll_do(GtkWidget *widget, GtkAdjustment *vadj,
1292                                       gfloat old_value, gfloat last_value,
1293                                       gint step)
1294 {
1295         gint change_value;
1296         gboolean up;
1297         gint i;
1298
1299         if (old_value < last_value) {
1300                 change_value = last_value - old_value;
1301                 up = FALSE;
1302         } else {
1303                 change_value = old_value - last_value;
1304                 up = TRUE;
1305         }
1306
1307         for (i = step; i <= change_value; i += step) {
1308                 vadj->value = old_value + (up ? -i : i);
1309                 g_signal_emit_by_name(G_OBJECT(vadj),
1310                                       "value_changed", 0);
1311         }
1312
1313         vadj->value = last_value;
1314         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1315
1316         gtk_widget_queue_draw(widget);
1317 }
1318
1319 static gboolean gtkutils_smooth_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1320 {
1321         gfloat upper;
1322         gfloat page_incr;
1323         gfloat old_value;
1324         gfloat last_value;
1325
1326         if (prefs_common.scroll_halfpage)
1327                 page_incr = vadj->page_increment / 2;
1328         else
1329                 page_incr = vadj->page_increment;
1330
1331         if (!up) {
1332                 upper = vadj->upper - vadj->page_size;
1333                 if (vadj->value < upper) {
1334                         old_value = vadj->value;
1335                         last_value = vadj->value + page_incr;
1336                         last_value = MIN(last_value, upper);
1337
1338                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1339                                                   last_value,
1340                                                   prefs_common.scroll_step);
1341                 } else
1342                         return FALSE;
1343         } else {
1344                 if (vadj->value > 0.0) {
1345                         old_value = vadj->value;
1346                         last_value = vadj->value - page_incr;
1347                         last_value = MAX(last_value, 0.0);
1348
1349                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1350                                                   last_value,
1351                                                   prefs_common.scroll_step);
1352                 } else
1353                         return FALSE;
1354         }
1355
1356         return TRUE;
1357 }
1358
1359 gboolean gtkutils_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1360 {
1361         gfloat upper;
1362         gfloat page_incr;
1363
1364         if (prefs_common.enable_smooth_scroll)
1365                 return gtkutils_smooth_scroll_page(widget, vadj, up);
1366
1367         if (prefs_common.scroll_halfpage)
1368                 page_incr = vadj->page_increment / 2;
1369         else
1370                 page_incr = vadj->page_increment;
1371
1372         if (!up) {
1373                 upper = vadj->upper - vadj->page_size;
1374                 if (vadj->value < upper) {
1375                         vadj->value += page_incr;
1376                         vadj->value = MIN(vadj->value, upper);
1377                         g_signal_emit_by_name(G_OBJECT(vadj),
1378                                               "value_changed", 0);
1379                 } else
1380                         return FALSE;
1381         } else {
1382                 if (vadj->value > 0.0) {
1383                         vadj->value -= page_incr;
1384                         vadj->value = MAX(vadj->value, 0.0);
1385                         g_signal_emit_by_name(G_OBJECT(vadj),
1386                                               "value_changed", 0);
1387                 } else
1388                         return FALSE;
1389         }
1390         return TRUE;
1391 }
1392
1393 static void gtkutils_smooth_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1394 {
1395         gfloat upper;
1396         gfloat old_value;
1397         gfloat last_value;
1398
1399         if (!up) {
1400                 upper = vadj->upper - vadj->page_size;
1401                 if (vadj->value < upper) {
1402                         old_value = vadj->value;
1403                         last_value = vadj->value + vadj->step_increment;
1404                         last_value = MIN(last_value, upper);
1405
1406                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1407                                                   last_value,
1408                                                   prefs_common.scroll_step);
1409                 }
1410         } else {
1411                 if (vadj->value > 0.0) {
1412                         old_value = vadj->value;
1413                         last_value = vadj->value - vadj->step_increment;
1414                         last_value = MAX(last_value, 0.0);
1415
1416                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1417                                                   last_value,
1418                                                   prefs_common.scroll_step);
1419                 }
1420         }
1421 }
1422
1423 void gtkutils_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1424 {
1425         gfloat upper;
1426
1427         if (prefs_common.enable_smooth_scroll) {
1428                 gtkutils_smooth_scroll_one_line(widget, vadj, up);
1429                 return;
1430         }
1431
1432         if (!up) {
1433                 upper = vadj->upper - vadj->page_size;
1434                 if (vadj->value < upper) {
1435                         vadj->value += vadj->step_increment;
1436                         vadj->value = MIN(vadj->value, upper);
1437                         g_signal_emit_by_name(G_OBJECT(vadj),
1438                                               "value_changed", 0);
1439                 }
1440         } else {
1441                 if (vadj->value > 0.0) {
1442                         vadj->value -= vadj->step_increment;
1443                         vadj->value = MAX(vadj->value, 0.0);
1444                         g_signal_emit_by_name(G_OBJECT(vadj),
1445                                               "value_changed", 0);
1446                 }
1447         }
1448 }