src/gtk/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2004 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include <glib.h>
  25 #include <gdk/gdkkeysyms.h>
  26 #include <gdk/gdk.h>
  27 #include <gtk/gtkwidget.h>
  28 #include <gtk/gtkhbbox.h>
  29 #include <gtk/gtkbutton.h>
  30 #include <gtk/gtkctree.h>
  31 #include <gtk/gtkcombo.h>
  32 #include <gtk/gtkbindings.h>
  33 #include <gtk/gtkitemfactory.h>
  34 #include <stdlib.h>
  35 #include <stdarg.h>
  36 #include <sys/stat.h>
  37
  38 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
  39 #  include <wchar.h>
  40 #  include <wctype.h>
  41 #endif
  42
  43 #include "intl.h"
  44 #include "gtkutils.h"
  45 #include "utils.h"
  46 #include "gtksctree.h"
  47 #include "codeconv.h"
  48 #include "stock_pixmap.h"
  49 #include "menu.h"
  50 #include "prefs_account.h"
  51
  52 #warning FIXME_GTK2
  53 gboolean gtkut_get_font_size(GtkWidget *widget,
  54                              gint *width, gint *height)
  55 {
  56         PangoLayout *layout;
  57         const gchar *str = "Abcdef";
  58
  59         g_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  60
  61         layout = gtk_widget_create_pango_layout(widget, str);
  62         g_return_val_if_fail(layout, FALSE);
  63         pango_layout_get_pixel_size(layout, width, height);
  64         if (width)
  65                 *width = *width / g_utf8_strlen(str, -1);
  66         g_object_unref(layout);
  67
  68         return TRUE;
  69 }
  70
  71 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
  72 {
  73         g_return_if_fail(color != NULL);
  74
  75         color->pixel = 0L;
  76         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
  77         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
  78         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
  79 }
  80
  81 void gtkut_button_set_create(GtkWidget **bbox,
  82                              GtkWidget **button1, const gchar *label1,
  83                              GtkWidget **button2, const gchar *label2,
  84                              GtkWidget **button3, const gchar *label3)
  85 {
  86         g_return_if_fail(bbox != NULL);
  87         g_return_if_fail(button1 != NULL);
  88
  89         *bbox = gtk_hbutton_box_new();
  90         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
  91         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
  92
  93         *button1 = gtk_button_new_with_label(label1);
  94         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
  95         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
  96         gtk_widget_show(*button1);
  97
  98         if (button2) {
  99                 *button2 = gtk_button_new_with_label(label2);
 100                 GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
 101                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 102                 gtk_widget_show(*button2);
 103         }
 104
 105         if (button3) {
 106                 *button3 = gtk_button_new_with_label(label3);
 107                 GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
 108                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 109                 gtk_widget_show(*button3);
 110         }
 111 }
 112
 113 static void combo_button_size_request(GtkWidget *widget,
 114                                       GtkRequisition *requisition,
 115                                       gpointer data)
 116 {
 117         ComboButton *combo = (ComboButton *)data;
 118
 119         if (combo->arrow->allocation.height != requisition->height)
 120                 gtk_widget_set_usize(combo->arrow, -1, requisition->height);
 121 }
 122
 123 static void combo_button_enter(GtkWidget *widget, gpointer data)
 124 {
 125         ComboButton *combo = (ComboButton *)data;
 126
 127         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_PRELIGHT) {
 128                 gtk_widget_set_state(combo->arrow, GTK_STATE_PRELIGHT);
 129                 gtk_widget_queue_draw(combo->arrow);
 130         }
 131         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_PRELIGHT) {
 132                 gtk_widget_set_state(combo->button, GTK_STATE_PRELIGHT);
 133                 gtk_widget_queue_draw(combo->button);
 134         }
 135 }
 136
 137 static void combo_button_leave(GtkWidget *widget, gpointer data)
 138 {
 139         ComboButton *combo = (ComboButton *)data;
 140
 141         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_NORMAL) {
 142                 gtk_widget_set_state(combo->arrow, GTK_STATE_NORMAL);
 143                 gtk_widget_queue_draw(combo->arrow);
 144         }
 145         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_NORMAL) {
 146                 gtk_widget_set_state(combo->button, GTK_STATE_NORMAL);
 147                 gtk_widget_queue_draw(combo->button);
 148         }
 149 }
 150
 151 static gint combo_button_arrow_pressed(GtkWidget *widget, GdkEventButton *event,
 152                                        gpointer data)
 153 {
 154         ComboButton *combo = (ComboButton *)data;
 155
 156         if (!event) return FALSE;
 157
 158         gtk_menu_popup(GTK_MENU(combo->menu), NULL, NULL,
 159                        menu_button_position, combo->button,
 160                        event->button, event->time);
 161
 162         return FALSE;
 163 }
 164
 165 static void combo_button_destroy(GtkWidget *widget, gpointer data)
 166 {
 167         ComboButton *combo = (ComboButton *)data;
 168
 169         gtk_object_destroy(GTK_OBJECT(combo->factory));
 170         g_free(combo);
 171 }
 172
 173 ComboButton *gtkut_combo_button_create(GtkWidget *button,
 174                                        GtkItemFactoryEntry *entries,
 175                                        gint n_entries, const gchar *path,
 176                                        gpointer data)
 177 {
 178         ComboButton *combo;
 179         GtkWidget *arrow;
 180
 181         combo = g_new0(ComboButton, 1);
 182
 183         combo->arrow = gtk_button_new();
 184         arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
 185         gtk_container_add(GTK_CONTAINER(combo->arrow), arrow);
 186         GTK_WIDGET_UNSET_FLAGS(combo->arrow, GTK_CAN_FOCUS);
 187         gtk_widget_show_all(combo->arrow);
 188
 189         combo->button = button;
 190         combo->menu = menu_create_items(entries, n_entries, path,
 191                                         &combo->factory, data);
 192         combo->data = data;
 193
 194         g_signal_connect(G_OBJECT(combo->button), "size_request",
 195                          G_CALLBACK(combo_button_size_request), combo);
 196         g_signal_connect(G_OBJECT(combo->button), "enter",
 197                          G_CALLBACK(combo_button_enter), combo);
 198         g_signal_connect(G_OBJECT(combo->button), "leave",
 199                          G_CALLBACK(combo_button_leave), combo);
 200         g_signal_connect(G_OBJECT(combo->arrow), "enter",
 201                          G_CALLBACK(combo_button_enter), combo);
 202         g_signal_connect(G_OBJECT(combo->arrow), "leave",
 203                          G_CALLBACK(combo_button_leave), combo);
 204         g_signal_connect(G_OBJECT(combo->arrow), "button_press_event",
 205                          G_CALLBACK(combo_button_arrow_pressed), combo);
 206         g_signal_connect(G_OBJECT(combo->arrow), "destroy",
 207                          G_CALLBACK(combo_button_destroy), combo);
 208
 209         return combo;
 210 }
 211
 212 #define CELL_SPACING 1
 213 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 214                                     (((row) + 1) * CELL_SPACING) + \
 215                                     (clist)->voffset)
 216 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 217                                    ((clist)->row_height + CELL_SPACING))
 218
 219 void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node)
 220 {
 221         GtkCList *clist = GTK_CLIST(ctree);
 222         gint row;
 223         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 224
 225         g_return_if_fail(ctree != NULL);
 226         g_return_if_fail(node != NULL);
 227
 228         row = g_list_position(clist->row_list, (GList *)node);
 229         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 230         row_visibility = gtk_clist_row_is_visible(clist, row);
 231         prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
 232         next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
 233
 234         if (row_visibility == GTK_VISIBILITY_NONE) {
 235                 gtk_clist_moveto(clist, row, -1, 0.5, 0);
 236                 return;
 237         }
 238         if (row_visibility == GTK_VISIBILITY_FULL &&
 239             prev_row_visibility == GTK_VISIBILITY_FULL &&
 240             next_row_visibility == GTK_VISIBILITY_FULL)
 241                 return;
 242         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 243             next_row_visibility != GTK_VISIBILITY_FULL)
 244                 return;
 245
 246         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 247                 gtk_clist_moveto(clist, row, -1, 0.2, 0);
 248                 return;
 249         }
 250         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 251                 gtk_clist_moveto(clist, row, -1, 0.8, 0);
 252                 return;
 253         }
 254 }
 255
 256 #undef CELL_SPACING
 257 #undef ROW_TOP_YPIXEL
 258 #undef ROW_FROM_YPIXEL
 259
 260 gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
 261 {
 262         g_return_val_if_fail(ctree != NULL, -1);
 263         g_return_val_if_fail(node != NULL, -1);
 264
 265         return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
 266 }
 267
 268 /* get the next node, including the invisible one */
 269 GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
 270 {
 271         GtkCTreeNode *parent;
 272
 273         if (!node) return NULL;
 274
 275         if (GTK_CTREE_ROW(node)->children)
 276                 return GTK_CTREE_ROW(node)->children;
 277
 278         if (GTK_CTREE_ROW(node)->sibling)
 279                 return GTK_CTREE_ROW(node)->sibling;
 280
 281         for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
 282              parent = GTK_CTREE_ROW(parent)->parent) {
 283                 if (GTK_CTREE_ROW(parent)->sibling)
 284                         return GTK_CTREE_ROW(parent)->sibling;
 285         }
 286
 287         return NULL;
 288 }
 289
 290 /* get the previous node, including the invisible one */
 291 GtkCTreeNode *gtkut_ctree_node_prev(GtkCTree *ctree, GtkCTreeNode *node)
 292 {
 293         GtkCTreeNode *prev;
 294         GtkCTreeNode *child;
 295
 296         if (!node) return NULL;
 297
 298         prev = GTK_CTREE_NODE_PREV(node);
 299         if (prev == GTK_CTREE_ROW(node)->parent)
 300                 return prev;
 301
 302         child = prev;
 303         while (GTK_CTREE_ROW(child)->children != NULL) {
 304                 child = GTK_CTREE_ROW(child)->children;
 305                 while (GTK_CTREE_ROW(child)->sibling != NULL)
 306                         child = GTK_CTREE_ROW(child)->sibling;
 307         }
 308
 309         return child;
 310 }
 311
 312 gboolean gtkut_ctree_node_is_selected(GtkCTree *ctree, GtkCTreeNode *node)
 313 {
 314         GtkCList *clist = GTK_CLIST(ctree);
 315         GList *cur;
 316
 317         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 318                 if (node == GTK_CTREE_NODE(cur->data))
 319                         return TRUE;
 320         }
 321
 322         return FALSE;
 323 }
 324
 325 GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
 326                                                 GtkCTreeNode *node)
 327 {
 328         if (!node) return NULL;
 329
 330         while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
 331                 if (!GTK_CTREE_ROW(node)->expanded)
 332                         return node;
 333         }
 334
 335         return NULL;
 336 }
 337
 338 void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
 339 {
 340         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 341                 gtk_ctree_expand(ctree, node);
 342 }
 343
 344 gboolean gtkut_ctree_node_is_parent(GtkCTreeNode *parent, GtkCTreeNode *node)
 345 {
 346         GtkCTreeNode *tmp;
 347         g_return_val_if_fail(node != NULL, FALSE);
 348         g_return_val_if_fail(parent != NULL, FALSE);
 349         tmp = node;
 350
 351         while (tmp) {
 352                 if(GTK_CTREE_ROW(tmp)->parent && GTK_CTREE_ROW(tmp)->parent == parent)
 353                         return TRUE;
 354                 tmp = GTK_CTREE_ROW(tmp)->parent;
 355         }
 356
 357         return FALSE;
 358 }
 359
 360 void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
 361 {
 362         gtkut_clist_set_focus_row(GTK_CLIST(ctree),
 363                                   gtkut_ctree_get_nth_from_node(ctree, node));
 364 }
 365
 366 void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
 367 {
 368         clist->focus_row = row;
 369         GTKUT_CTREE_REFRESH(clist);
 370 }
 371
 372 void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
 373 {
 374         va_list args;
 375         gchar *s;
 376         GList *combo_items = NULL;
 377
 378         g_return_if_fail(str1 != NULL);
 379
 380         combo_items = g_list_append(combo_items, (gpointer)str1);
 381         va_start(args, str1);
 382         s = va_arg(args, gchar*);
 383         while (s) {
 384                 combo_items = g_list_append(combo_items, (gpointer)s);
 385                 s = va_arg(args, gchar*);
 386         }
 387         va_end(args);
 388
 389         gtk_combo_set_popdown_strings(combo, combo_items);
 390
 391         g_list_free(combo_items);
 392 }
 393
 394 gchar *gtkut_editable_get_selection(GtkEditable *editable)
 395 {
 396         guint start_pos, end_pos;
 397         gboolean found;
 398
 399         g_return_val_if_fail(GTK_IS_EDITABLE(editable), NULL);
 400
 401         found = gtk_editable_get_selection_bounds(editable,
 402                                                   &start_pos, &end_pos);
 403         if (found)
 404                 return gtk_editable_get_chars(editable, start_pos, end_pos);
 405         else
 406                 return NULL;
 407 }
 408
 409 void gtkut_editable_disable_im(GtkEditable *editable)
 410 {
 411         g_return_if_fail(editable != NULL);
 412
 413 #if USE_XIM
 414         if (editable->ic) {
 415                 gdk_ic_destroy(editable->ic);
 416                 editable->ic = NULL;
 417         }
 418         if (editable->ic_attr) {
 419                 gdk_ic_attr_destroy(editable->ic_attr);
 420                 editable->ic_attr = NULL;
 421         }
 422 #endif
 423 }
 424
 425 /*
 426  * Walk through the widget tree and disclaim the selection from all currently
 427  * realized GtkEditable widgets.
 428  */
 429 static void gtkut_check_before_remove(GtkWidget *widget, gpointer unused)
 430 {
 431         g_return_if_fail(widget != NULL);
 432
 433         if (!GTK_WIDGET_REALIZED(widget))
 434                 return; /* all nested widgets must be unrealized too */
 435         if (GTK_IS_CONTAINER(widget))
 436                 gtk_container_forall(GTK_CONTAINER(widget),
 437                                      gtkut_check_before_remove, NULL);
 438 #warning FIXME_GTK2
 439 #if 0
 440         if (GTK_IS_EDITABLE(widget))
 441                 gtk_editable_claim_selection(GTK_EDITABLE(widget),
 442                                              FALSE, GDK_CURRENT_TIME);
 443 #endif
 444 }
 445
 446 /*
 447  * Wrapper around gtk_container_remove to work around a bug in GtkText and
 448  * GtkEntry (in all GTK+ versions up to and including at least 1.2.10).
 449  *
 450  * The problem is that unrealizing a GtkText or GtkEntry widget which has the
 451  * active selection completely messes up selection handling, leading to
 452  * non-working selections and crashes.  Removing a widget from its container
 453  * implies unrealizing it and all its child widgets; this triggers the bug if
 454  * the removed widget or any of its children is GtkText or GtkEntry.  As a
 455  * workaround, this function walks through the widget subtree before removing
 456  * and disclaims the selection from all GtkEditable widgets found.
 457  *
 458  * A similar workaround may be needed for gtk_widget_reparent(); currently it
 459  * is not necessary because Sylpheed does not use gtk_widget_reparent() for
 460  * GtkEditable widgets or containers holding such widgets.
 461  */
 462 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 463 {
 464         gtkut_check_before_remove(widget, NULL);
 465         gtk_container_remove(container, widget);
 466 }
 467
 468 void gtkut_window_popup(GtkWidget *window)
 469 {
 470         gint x, y, sx, sy, new_x, new_y;
 471
 472         g_return_if_fail(window != NULL);
 473         g_return_if_fail(window->window != NULL);
 474
 475         sx = gdk_screen_width();
 476         sy = gdk_screen_height();
 477
 478         gdk_window_get_origin(window->window, &x, &y);
 479         new_x = x % sx; if (new_x < 0) new_x = 0;
 480         new_y = y % sy; if (new_y < 0) new_y = 0;
 481         if (new_x != x || new_y != y)
 482                 gdk_window_move(window->window, new_x, new_y);
 483
 484         gdk_window_raise(window->window);
 485         gdk_window_show(window->window);
 486 }
 487
 488 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 489 {
 490         gint x, y;
 491         gint sx, sy;
 492
 493         g_return_if_fail(widget != NULL);
 494         g_return_if_fail(widget->window != NULL);
 495
 496         sx = gdk_screen_width();
 497         sy = gdk_screen_height();
 498
 499         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 500         gdk_window_get_root_origin(widget->window, &x, &y);
 501
 502         x %= sx; if (x < 0) x = 0;
 503         y %= sy; if (y < 0) y = 0;
 504         *px = x;
 505         *py = y;
 506 }
 507
 508 void gtkut_widget_disable_theme_engine(GtkWidget *widget)
 509 {
 510 #warning FIXME_GTK2
 511 #if 0
 512         GtkStyle *style, *new_style;
 513
 514         style = gtk_widget_get_style(widget);
 515
 516         if (style->engine) {
 517                 GtkThemeEngine *engine;
 518
 519                 engine = style->engine;
 520                 style->engine = NULL;
 521                 new_style = gtk_style_copy(style);
 522                 style->engine = engine;
 523                 gtk_widget_set_style(widget, new_style);
 524         }
 525 #endif
 526 }
 527
 528 void gtkut_widget_wait_for_draw(GtkWidget *widget)
 529 {
 530         if (!GTK_WIDGET_DRAWABLE(widget)) return;
 531
 532         while (gtk_events_pending())
 533                 gtk_main_iteration();
 534 }
 535
 536 static void gtkut_clist_bindings_add(GtkWidget *clist)
 537 {
 538         GtkBindingSet *binding_set;
 539
 540         binding_set = gtk_binding_set_by_class
 541                 (GTK_CLIST_GET_CLASS(clist));
 542
 543         gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
 544                                      "scroll_vertical", 2,
 545                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 546                                      G_TYPE_FLOAT, 0.0);
 547         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 548                                      "scroll_vertical", 2,
 549                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 550                                      G_TYPE_FLOAT, 0.0);
 551 }
 552
 553 void gtkut_widget_init(void)
 554 {
 555         GtkWidget *clist;
 556
 557         clist = gtk_clist_new(1);
 558         g_object_ref(G_OBJECT(clist));
 559         gtk_object_sink(GTK_OBJECT(clist));
 560         gtkut_clist_bindings_add(clist);
 561         g_object_unref(G_OBJECT(clist));
 562
 563         clist = gtk_ctree_new(1, 0);
 564         g_object_ref(G_OBJECT(clist));
 565         gtk_object_sink(GTK_OBJECT(clist));
 566         gtkut_clist_bindings_add(clist);
 567         g_object_unref(G_OBJECT(clist));
 568
 569         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 570         g_object_ref(G_OBJECT(clist));
 571         gtk_object_sink(GTK_OBJECT(clist));
 572         gtkut_clist_bindings_add(clist);
 573         g_object_unref(G_OBJECT(clist));
 574 }
 575
 576 void gtkut_widget_set_app_icon(GtkWidget *widget)
 577 {
 578 #include "pixmaps/sylpheed.xpm"
 579         static GdkPixmap *sylpheedxpm;
 580         static GdkBitmap *sylpheedxpmmask;
 581
 582         g_return_if_fail(widget != NULL);
 583         g_return_if_fail(widget->window != NULL);
 584         if (!sylpheedxpm) {
 585                 PIXMAP_CREATE(widget, sylpheedxpm, sylpheedxpmmask, sylpheed_xpm);
 586         }
 587         gdk_window_set_icon(widget->window, NULL, sylpheedxpm, sylpheedxpmmask);
 588 }
 589
 590 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 591 {
 592         static GdkPixmap *xpm;
 593         static GdkBitmap *bmp;
 594
 595         g_return_if_fail(widget != NULL);
 596         g_return_if_fail(widget->window != NULL);
 597         if (!xpm) {
 598                 stock_pixmap_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &xpm, &bmp);
 599         }
 600         gdk_window_set_icon(widget->window, NULL, xpm, bmp);
 601 }
 602
 603 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 604                                   GCallback              callback,
 605                                   gpointer               data)
 606 {
 607         GList *cur_ac;
 608         GtkWidget *menu;
 609
 610         g_return_val_if_fail(ac_list != NULL, NULL);
 611
 612         menu = gtk_menu_new();
 613
 614         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 615                 gchar *name;
 616                 GtkWidget *menuitem;
 617                 PrefsAccount *account;
 618
 619                 account = (PrefsAccount *) cur_ac->data;
 620                 if (account->name)
 621                         name = g_strdup_printf("%s: %s <%s>",
 622                                                account->account_name,
 623                                                account->name,
 624                                                account->address);
 625                 else
 626                         name = g_strdup_printf("%s: %s",
 627                                                account->account_name,
 628                                                account->address);
 629                 MENUITEM_ADD(menu, menuitem, name, account->account_id);
 630                 g_free(name);
 631                 if (callback != NULL)
 632                         g_signal_connect(G_OBJECT(menuitem), "activate",
 633                                          callback, data);
 634         }
 635         return menu;
 636 }
 637
 638 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 639 {
 640         GtkStyle *newstyle;
 641         GdkColor gdk_color;
 642
 643         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 644         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 645         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 646         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 647         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 648         gtk_widget_set_style(widget, newstyle);
 649 }
 650
 651 gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf, gint pos, gunichar *wcs,
 652                                         gint len, gboolean case_sens)
 653 {
 654         GtkTextIter start_iter, end_iter;
 655         gchar *utf8str;
 656         gint match_count = 0;
 657
 658         gtk_text_buffer_get_iter_at_offset(textbuf, &start_iter, pos);
 659         gtk_text_buffer_get_iter_at_offset(textbuf, &end_iter, pos + len);
 660
 661         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter, FALSE);
 662         if (!utf8str) return FALSE;
 663
 664         if ((gint) g_utf8_strlen(utf8str, -1) != len) {
 665                 g_free(utf8str);
 666                 return FALSE;
 667         }
 668
 669         for (; match_count < len; pos++, match_count++) {
 670                 gchar *ptr = g_utf8_offset_to_pointer(utf8str, match_count);
 671                 gunichar ch;
 672
 673                 if (!ptr) break;
 674                 ch = g_utf8_get_char(ptr);
 675
 676                 if (case_sens) {
 677                         if (ch != wcs[match_count])
 678                                 break;
 679                 } else {
 680                         if (g_unichar_tolower(ch) !=
 681                             g_unichar_tolower(wcs[match_count]))
 682                                 break;
 683                 }
 684         }
 685
 686         g_free(utf8str);
 687
 688         if (match_count == len)
 689                 return TRUE;
 690         else
 691                 return FALSE;
 692 }
 693
 694 guint gtkut_text_buffer_str_compare_n(GtkTextBuffer *textbuf,
 695                                       guint pos1, guint pos2,
 696                                       guint len, guint text_len)
 697 {
 698         guint i;
 699
 700         for (i = 0; i < len && pos1 + i < text_len && pos2 + i < text_len; i++) {
 701                 GtkTextIter start_iter, end_iter;
 702                 gchar *utf8str1, *utf8str2;
 703
 704                 gtk_text_buffer_get_iter_at_offset(textbuf, &start_iter,
 705                                                    pos1 + i);
 706                 gtk_text_buffer_get_iter_at_offset(textbuf, &end_iter,
 707                                                    pos1 + i + 1);
 708                 utf8str1 = gtk_text_buffer_get_text(textbuf,
 709                                                     &start_iter,
 710                                                     &end_iter,
 711                                                     FALSE);
 712
 713                 gtk_text_buffer_get_iter_at_offset(textbuf, &start_iter,
 714                                                    pos2 + i);
 715                 gtk_text_buffer_get_iter_at_offset(textbuf, &end_iter,
 716                                                    pos2 + i + 1);
 717                 utf8str2 = gtk_text_buffer_get_text(textbuf,
 718                                                     &start_iter,
 719                                                     &end_iter,
 720                                                     FALSE);
 721
 722                 if (!utf8str1 || !utf8str2 || strcmp(utf8str1, utf8str2)) {
 723                         g_free(utf8str1);
 724                         g_free(utf8str2);
 725                         break;
 726                 }
 727
 728                 g_free(utf8str1);
 729                 g_free(utf8str2);
 730         }
 731
 732         return i;
 733 }
 734
 735 guint gtkut_text_buffer_str_compare(GtkTextBuffer *textbuf,
 736                                     guint start_pos, guint text_len,
 737                                     const gchar *str)
 738 {
 739         gunichar *wcs;
 740         guint len = 0;
 741         glong items_read = 0, items_written = 0;
 742         gboolean result;
 743         GError *error = NULL;
 744
 745         if (!str) return 0;
 746
 747         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 748         if (error != NULL) {
 749                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n",
 750                           error->message);
 751                 g_error_free(error);
 752         }
 753         if (!wcs || items_written <= 0) return 0;
 754         len = (guint) items_written;
 755
 756         if (len > text_len - start_pos)
 757                 result = FALSE;
 758         else
 759                 result = gtkut_text_buffer_match_string(textbuf, start_pos,
 760                                                         wcs, len,
 761                                                         TRUE);
 762
 763         g_free(wcs);
 764
 765         return result ? len : 0;
 766 }
 767
 768 gboolean gtkut_text_buffer_is_uri_string(GtkTextBuffer *textbuf,
 769                                          guint start_pos, guint text_len)
 770 {
 771         if (gtkut_text_buffer_str_compare(textbuf, start_pos, text_len, "http://")  ||
 772             gtkut_text_buffer_str_compare(textbuf, start_pos, text_len, "ftp://")   ||
 773             gtkut_text_buffer_str_compare(textbuf, start_pos, text_len, "https://") ||
 774             gtkut_text_buffer_str_compare(textbuf, start_pos, text_len, "www."))
 775                 return TRUE;
 776
 777         return FALSE;
 778 }
 779
 780 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 781 {
 782         GtkTextBuffer *buffer;
 783         GtkTextIter start_iter, end_iter;
 784         gboolean found;
 785
 786         g_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 787
 788         buffer = gtk_text_view_get_buffer(textview);
 789         found = gtk_text_buffer_get_selection_bounds(buffer,
 790                                                      &start_iter,
 791                                                      &end_iter);
 792         if (found)
 793                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 794                                                 FALSE);
 795         else
 796                 return NULL;
 797 }