src/gtk/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 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 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
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27 #include <gdk/gdkkeysyms.h>
  28 #include <gdk/gdk.h>
  29 #include <gtk/gtk.h>
  30 #if !GTK_CHECK_VERSION(3, 0, 0)
  31 #include "gtk/gtksctree.h"
  32 #endif
  33 #include <stdlib.h>
  34 #include <stdarg.h>
  35 #include <sys/stat.h>
  36
  37 #include "combobox.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 #if !GTK_CHECK_VERSION(3, 0, 0)
  56 #include "gtksctree.h"
  57 #endif
  58 #include "codeconv.h"
  59 #include "stock_pixmap.h"
  60 #include "menu.h"
  61 #include "prefs_account.h"
  62 #include "prefs_common.h"
  63 #include "manage_window.h"
  64 #include "base64.h"
  65 #include "manual.h"
  66 #include "combobox.h"
  67
  68 gboolean gtkut_get_font_size(GtkWidget *widget,
  69                              gint *width, gint *height)
  70 {
  71         PangoLayout *layout;
  72         const gchar *str = "Abcdef";
  73
  74         cm_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  75
  76         layout = gtk_widget_create_pango_layout(widget, str);
  77         cm_return_val_if_fail(layout, FALSE);
  78         pango_layout_get_pixel_size(layout, width, height);
  79         if (width)
  80                 *width = *width / g_utf8_strlen(str, -1);
  81         g_object_unref(layout);
  82
  83         return TRUE;
  84 }
  85
  86 void gtkut_widget_set_small_font_size(GtkWidget *widget)
  87 {
  88         PangoFontDescription *font_desc;
  89         gint size;
  90
  91         cm_return_if_fail(widget != NULL);
  92         cm_return_if_fail(gtk_widget_get_style(widget) != NULL);
  93
  94         if (prefs_common.derive_from_normal_font || !SMALL_FONT) {
  95                 font_desc = pango_font_description_from_string(NORMAL_FONT);
  96                 size = pango_font_description_get_size(font_desc);
  97                 pango_font_description_set_size(font_desc, size * PANGO_SCALE_SMALL);
  98                 gtk_widget_modify_font(widget, font_desc);
  99                 pango_font_description_free(font_desc);
 100         } else {
 101                 font_desc = pango_font_description_from_string(SMALL_FONT);
 102                 gtk_widget_modify_font(widget, font_desc);
 103                 pango_font_description_free(font_desc);
 104         }
 105 }
 106
 107 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
 108 {
 109         cm_return_if_fail(color != NULL);
 110
 111         color->pixel = 0L;
 112         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
 113         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
 114         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
 115 }
 116
 117 #define CL(x)   (((gulong) (x) >> (gulong) 8) & 0xFFUL)
 118 #define RGB_FROM_GDK_COLOR(c) \
 119         ((CL(c->red)   << (gulong) 16) | \
 120          (CL(c->green) << (gulong)  8) | \
 121          (CL(c->blue)))
 122
 123 gint gtkut_convert_gdk_color_to_int(GdkColor *color)
 124 {
 125         return RGB_FROM_GDK_COLOR(color);
 126 }
 127
 128 void gtkut_stock_button_add_help(GtkWidget *bbox, GtkWidget **help_btn)
 129 {
 130         cm_return_if_fail(bbox != NULL);
 131
 132         *help_btn = gtk_button_new_from_stock(GTK_STOCK_HELP);
 133
 134         gtkut_widget_set_can_default(*help_btn, TRUE);
 135         gtk_box_pack_end(GTK_BOX (bbox), *help_btn, TRUE, TRUE, 0);
 136         gtk_button_box_set_child_secondary(GTK_BUTTON_BOX (bbox),
 137                         *help_btn, TRUE);
 138         gtk_widget_set_sensitive(*help_btn,
 139                         manual_available(MANUAL_MANUAL_CLAWS));
 140         gtk_widget_show(*help_btn);
 141 }
 142
 143 void gtkut_stock_button_set_create_with_help(GtkWidget **bbox,
 144                 GtkWidget **help_button,
 145                 GtkWidget **button1, const gchar *label1,
 146                 GtkWidget **button2, const gchar *label2,
 147                 GtkWidget **button3, const gchar *label3)
 148 {
 149         cm_return_if_fail(bbox != NULL);
 150         cm_return_if_fail(button1 != NULL);
 151
 152         gtkut_stock_button_set_create(bbox, button1, label1,
 153                         button2, label2, button3, label3);
 154
 155         gtkut_stock_button_add_help(*bbox, help_button);
 156 }
 157
 158 void gtkut_stock_button_set_create(GtkWidget **bbox,
 159                                    GtkWidget **button1, const gchar *label1,
 160                                    GtkWidget **button2, const gchar *label2,
 161                                    GtkWidget **button3, const gchar *label3)
 162 {
 163         cm_return_if_fail(bbox != NULL);
 164         cm_return_if_fail(button1 != NULL);
 165
 166         *bbox = gtk_hbutton_box_new();
 167         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 168         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 169
 170         *button1 = gtk_button_new_from_stock(label1);
 171         gtkut_widget_set_can_default(*button1, TRUE);
 172         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 173         gtk_widget_show(*button1);
 174
 175         if (button2) {
 176                 *button2 = gtk_button_new_from_stock(label2);
 177                 gtkut_widget_set_can_default(*button2, TRUE);
 178                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 179                 gtk_widget_show(*button2);
 180         }
 181
 182         if (button3) {
 183                 *button3 = gtk_button_new_from_stock(label3);
 184                 gtkut_widget_set_can_default(*button3, TRUE);
 185                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 186                 gtk_widget_show(*button3);
 187         }
 188 }
 189
 190 void gtkut_stock_with_text_button_set_create(GtkWidget **bbox,
 191                                    GtkWidget **button1, const gchar *label1, const gchar *text1,
 192                                    GtkWidget **button2, const gchar *label2, const gchar *text2,
 193                                    GtkWidget **button3, const gchar *label3, const gchar *text3)
 194 {
 195         cm_return_if_fail(bbox != NULL);
 196         cm_return_if_fail(button1 != NULL);
 197
 198         *bbox = gtk_hbutton_box_new();
 199         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 200         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 201
 202         *button1 = gtk_button_new_with_mnemonic(text1);
 203         gtk_button_set_image(GTK_BUTTON(*button1),
 204                 gtk_image_new_from_stock(label1, GTK_ICON_SIZE_BUTTON));
 205         gtkut_widget_set_can_default(*button1, TRUE);
 206         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 207         gtk_widget_show(*button1);
 208
 209         if (button2) {
 210                 *button2 = gtk_button_new_with_mnemonic(text2);
 211                 gtk_button_set_image(GTK_BUTTON(*button2),
 212                         gtk_image_new_from_stock(label2, GTK_ICON_SIZE_BUTTON));
 213                 gtkut_widget_set_can_default(*button2, TRUE);
 214                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 215                 gtk_widget_show(*button2);
 216         }
 217
 218         if (button3) {
 219                 *button3 = gtk_button_new_with_mnemonic(text3);
 220                 gtk_button_set_image(GTK_BUTTON(*button3),
 221                         gtk_image_new_from_stock(label3, GTK_ICON_SIZE_BUTTON));
 222                 gtkut_widget_set_can_default(*button3, TRUE);
 223                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 224                 gtk_widget_show(*button3);
 225         }
 226 }
 227
 228 #define CELL_SPACING 1
 229 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 230                                     (((row) + 1) * CELL_SPACING) + \
 231                                     (clist)->voffset)
 232 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 233                                    ((clist)->row_height + CELL_SPACING))
 234
 235 void gtkut_ctree_node_move_if_on_the_edge(GtkCMCTree *ctree, GtkCMCTreeNode *node, gint _row)
 236 {
 237         GtkCMCList *clist = GTK_CMCLIST(ctree);
 238         gint row;
 239         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 240
 241         cm_return_if_fail(ctree != NULL);
 242         cm_return_if_fail(node != NULL);
 243
 244         row = (_row != -1 ? _row : g_list_position(clist->row_list, (GList *)node));
 245
 246         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 247         row_visibility = gtk_cmclist_row_is_visible(clist, row);
 248         prev_row_visibility = gtk_cmclist_row_is_visible(clist, row - 1);
 249         next_row_visibility = gtk_cmclist_row_is_visible(clist, row + 1);
 250
 251         if (row_visibility == GTK_VISIBILITY_NONE) {
 252                 gtk_cmclist_moveto(clist, row, -1, 0.5, 0);
 253                 return;
 254         }
 255         if (row_visibility == GTK_VISIBILITY_FULL &&
 256             prev_row_visibility == GTK_VISIBILITY_FULL &&
 257             next_row_visibility == GTK_VISIBILITY_FULL)
 258                 return;
 259         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 260             next_row_visibility != GTK_VISIBILITY_FULL)
 261                 return;
 262
 263         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 264                 gtk_cmclist_moveto(clist, row, -1, 0.2, 0);
 265                 return;
 266         }
 267         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 268                 gtk_cmclist_moveto(clist, row, -1, 0.8, 0);
 269                 return;
 270         }
 271 }
 272
 273 #undef CELL_SPACING
 274 #undef ROW_TOP_YPIXEL
 275 #undef ROW_FROM_YPIXEL
 276
 277 gint gtkut_ctree_get_nth_from_node(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 278 {
 279         cm_return_val_if_fail(ctree != NULL, -1);
 280         cm_return_val_if_fail(node != NULL, -1);
 281
 282         return g_list_position(GTK_CMCLIST(ctree)->row_list, (GList *)node);
 283 }
 284
 285 /* get the next node, including the invisible one */
 286 GtkCMCTreeNode *gtkut_ctree_node_next(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 287 {
 288         GtkCMCTreeNode *parent;
 289
 290         if (!node) return NULL;
 291
 292         if (GTK_CMCTREE_ROW(node)->children)
 293                 return GTK_CMCTREE_ROW(node)->children;
 294
 295         if (GTK_CMCTREE_ROW(node)->sibling)
 296                 return GTK_CMCTREE_ROW(node)->sibling;
 297
 298         for (parent = GTK_CMCTREE_ROW(node)->parent; parent != NULL;
 299              parent = GTK_CMCTREE_ROW(parent)->parent) {
 300                 if (GTK_CMCTREE_ROW(parent)->sibling)
 301                         return GTK_CMCTREE_ROW(parent)->sibling;
 302         }
 303
 304         return NULL;
 305 }
 306
 307 /* get the previous node, including the invisible one */
 308 GtkCMCTreeNode *gtkut_ctree_node_prev(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 309 {
 310         GtkCMCTreeNode *prev;
 311         GtkCMCTreeNode *child;
 312
 313         if (!node) return NULL;
 314
 315         prev = GTK_CMCTREE_NODE_PREV(node);
 316         if (prev == GTK_CMCTREE_ROW(node)->parent)
 317                 return prev;
 318
 319         child = prev;
 320         while (GTK_CMCTREE_ROW(child)->children != NULL) {
 321                 child = GTK_CMCTREE_ROW(child)->children;
 322                 while (GTK_CMCTREE_ROW(child)->sibling != NULL)
 323                         child = GTK_CMCTREE_ROW(child)->sibling;
 324         }
 325
 326         return child;
 327 }
 328
 329 gboolean gtkut_ctree_node_is_selected(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 330 {
 331         GtkCMCList *clist = GTK_CMCLIST(ctree);
 332         GList *cur;
 333
 334         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 335                 if (node == GTK_CMCTREE_NODE(cur->data))
 336                         return TRUE;
 337         }
 338
 339         return FALSE;
 340 }
 341
 342 GtkCMCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCMCTree *ctree,
 343                                                 GtkCMCTreeNode *node)
 344 {
 345         if (!node) return NULL;
 346
 347         while ((node = GTK_CMCTREE_ROW(node)->parent) != NULL) {
 348                 if (!GTK_CMCTREE_ROW(node)->expanded)
 349                         return node;
 350         }
 351
 352         return NULL;
 353 }
 354
 355 void gtkut_ctree_expand_parent_all(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 356 {
 357         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 358                 gtk_cmctree_expand(ctree, node);
 359 }
 360
 361 gboolean gtkut_ctree_node_is_parent(GtkCMCTreeNode *parent, GtkCMCTreeNode *node)
 362 {
 363         GtkCMCTreeNode *tmp;
 364         cm_return_val_if_fail(node != NULL, FALSE);
 365         cm_return_val_if_fail(parent != NULL, FALSE);
 366         tmp = node;
 367
 368         while (tmp) {
 369                 if(GTK_CMCTREE_ROW(tmp)->parent && GTK_CMCTREE_ROW(tmp)->parent == parent)
 370                         return TRUE;
 371                 tmp = GTK_CMCTREE_ROW(tmp)->parent;
 372         }
 373
 374         return FALSE;
 375 }
 376
 377 void gtkut_ctree_set_focus_row(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 378 {
 379         if (node == NULL)
 380                 return;
 381         gtkut_clist_set_focus_row(GTK_CMCLIST(ctree),
 382                                   gtkut_ctree_get_nth_from_node(ctree, node));
 383 }
 384
 385 void gtkut_clist_set_focus_row(GtkCMCList *clist, gint row)
 386 {
 387         clist->focus_row = row;
 388         GTKUT_CTREE_REFRESH(clist);
 389 }
 390
 391 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 392 {
 393         gtk_container_remove(container, widget);
 394 }
 395
 396 static gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf,
 397                                         const GtkTextIter *iter,
 398                                         gunichar *wcs, gint len,
 399                                         gboolean case_sens)
 400 {
 401         GtkTextIter start_iter, end_iter;
 402         gchar *utf8str, *p;
 403         gint match_count;
 404
 405         start_iter = end_iter = *iter;
 406         gtk_text_iter_forward_chars(&end_iter, len);
 407
 408         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter,
 409                                            FALSE);
 410         if (!utf8str) return FALSE;
 411
 412         if ((gint)g_utf8_strlen(utf8str, -1) != len) {
 413                 g_free(utf8str);
 414                 return FALSE;
 415         }
 416
 417         for (p = utf8str, match_count = 0;
 418              *p != '\0' && match_count < len;
 419              p = g_utf8_next_char(p), match_count++) {
 420                 gunichar wc;
 421
 422                 wc = g_utf8_get_char(p);
 423
 424                 if (case_sens) {
 425                         if (wc != wcs[match_count])
 426                                 break;
 427                 } else {
 428                         if (g_unichar_tolower(wc) !=
 429                             g_unichar_tolower(wcs[match_count]))
 430                                 break;
 431                 }
 432         }
 433
 434         g_free(utf8str);
 435
 436         if (match_count == len)
 437                 return TRUE;
 438         else
 439                 return FALSE;
 440 }
 441
 442 static gboolean gtkut_text_buffer_find(GtkTextBuffer *buffer, const GtkTextIter *iter,
 443                                 const gchar *str, gboolean case_sens,
 444                                 GtkTextIter *match_pos)
 445 {
 446         gunichar *wcs;
 447         gint len;
 448         glong items_read = 0, items_written = 0;
 449         GError *error = NULL;
 450         GtkTextIter iter_;
 451         gboolean found = FALSE;
 452
 453         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 454         if (error != NULL) {
 455                 g_warning("An error occurred while converting a string from UTF-8 to UCS-4: %s\n",
 456                           error->message);
 457                 g_error_free(error);
 458         }
 459         if (!wcs || items_written <= 0) return FALSE;
 460         len = (gint)items_written;
 461
 462         iter_ = *iter;
 463         do {
 464                 found = gtkut_text_buffer_match_string
 465                         (buffer, &iter_, wcs, len, case_sens);
 466                 if (found) {
 467                         *match_pos = iter_;
 468                         break;
 469                 }
 470         } while (gtk_text_iter_forward_char(&iter_));
 471
 472         g_free(wcs);
 473
 474         return found;
 475 }
 476
 477 static gboolean gtkut_text_buffer_find_backward(GtkTextBuffer *buffer,
 478                                          const GtkTextIter *iter,
 479                                          const gchar *str, gboolean case_sens,
 480                                          GtkTextIter *match_pos)
 481 {
 482         gunichar *wcs;
 483         gint len;
 484         glong items_read = 0, items_written = 0;
 485         GError *error = NULL;
 486         GtkTextIter iter_;
 487         gboolean found = FALSE;
 488
 489         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 490         if (error != NULL) {
 491                 g_warning("An error occurred while converting a string from UTF-8 to UCS-4: %s\n",
 492                           error->message);
 493                 g_error_free(error);
 494         }
 495         if (!wcs || items_written <= 0) return FALSE;
 496         len = (gint)items_written;
 497
 498         iter_ = *iter;
 499         while (gtk_text_iter_backward_char(&iter_)) {
 500                 found = gtkut_text_buffer_match_string
 501                         (buffer, &iter_, wcs, len, case_sens);
 502                 if (found) {
 503                         *match_pos = iter_;
 504                         break;
 505                 }
 506         }
 507
 508         g_free(wcs);
 509
 510         return found;
 511 }
 512
 513 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 514 {
 515         GtkTextBuffer *buffer;
 516         GtkTextIter start_iter, end_iter;
 517         gboolean found;
 518
 519         cm_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 520
 521         buffer = gtk_text_view_get_buffer(textview);
 522         found = gtk_text_buffer_get_selection_bounds(buffer,
 523                                                      &start_iter,
 524                                                      &end_iter);
 525         if (found)
 526                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 527                                                 FALSE);
 528         else
 529                 return NULL;
 530 }
 531
 532
 533 void gtkut_text_view_set_position(GtkTextView *text, gint pos)
 534 {
 535         GtkTextBuffer *buffer;
 536         GtkTextIter iter;
 537         GtkTextMark *mark;
 538
 539         cm_return_if_fail(text != NULL);
 540
 541         buffer = gtk_text_view_get_buffer(text);
 542
 543         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
 544         gtk_text_buffer_place_cursor(buffer, &iter);
 545         mark = gtk_text_buffer_create_mark(buffer, NULL, &iter, TRUE);
 546         gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 547 }
 548
 549 gboolean gtkut_text_view_search_string(GtkTextView *text, const gchar *str,
 550                                         gboolean case_sens)
 551 {
 552         GtkTextBuffer *buffer;
 553         GtkTextIter iter, match_pos;
 554         GtkTextMark *mark;
 555         gint len;
 556
 557         cm_return_val_if_fail(text != NULL, FALSE);
 558         cm_return_val_if_fail(str != NULL, FALSE);
 559
 560         buffer = gtk_text_view_get_buffer(text);
 561
 562         len = g_utf8_strlen(str, -1);
 563         cm_return_val_if_fail(len >= 0, FALSE);
 564
 565         mark = gtk_text_buffer_get_insert(buffer);
 566         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 567
 568         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
 569                                    &match_pos)) {
 570                 GtkTextIter end = match_pos;
 571
 572                 gtk_text_iter_forward_chars(&end, len);
 573                 /* place "insert" at the last character */
 574                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
 575                 gtk_text_view_scroll_to_mark(text, mark, 0.0, TRUE, 0.0, 0.5);
 576                 return TRUE;
 577         }
 578
 579         return FALSE;
 580 }
 581
 582 gboolean gtkut_text_view_search_string_backward(GtkTextView *text, const gchar *str,
 583                                         gboolean case_sens)
 584 {
 585         GtkTextBuffer *buffer;
 586         GtkTextIter iter, match_pos;
 587         GtkTextMark *mark;
 588         gint len;
 589
 590         cm_return_val_if_fail(text != NULL, FALSE);
 591         cm_return_val_if_fail(str != NULL, FALSE);
 592
 593         buffer = gtk_text_view_get_buffer(text);
 594
 595         len = g_utf8_strlen(str, -1);
 596         cm_return_val_if_fail(len >= 0, FALSE);
 597
 598         mark = gtk_text_buffer_get_insert(buffer);
 599         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 600
 601         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
 602                                             &match_pos)) {
 603                 GtkTextIter end = match_pos;
 604
 605                 gtk_text_iter_forward_chars(&end, len);
 606                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
 607                 gtk_text_view_scroll_to_mark(text, mark, 0.0, TRUE, 0.0, 0.5);
 608                 return TRUE;
 609         }
 610
 611         return FALSE;
 612 }
 613
 614 void gtkut_window_popup(GtkWidget *window)
 615 {
 616         GdkWindow *gdkwin;
 617         gint x, y, sx, sy, new_x, new_y;
 618
 619         gdkwin = gtk_widget_get_window(window);
 620
 621         cm_return_if_fail(window != NULL);
 622         cm_return_if_fail(gdkwin != NULL);
 623
 624         sx = gdk_screen_width();
 625         sy = gdk_screen_height();
 626
 627         gdk_window_get_origin(gdkwin, &x, &y);
 628         new_x = x % sx; if (new_x < 0) new_x = 0;
 629         new_y = y % sy; if (new_y < 0) new_y = 0;
 630         if (new_x != x || new_y != y)
 631                 gdk_window_move(gdkwin, new_x, new_y);
 632
 633         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(window), FALSE);
 634         gtk_window_present_with_time(GTK_WINDOW(window), time(NULL));
 635 }
 636
 637 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 638 {
 639         GdkWindow *gdkwin;
 640         gint x, y;
 641         gint sx, sy;
 642
 643         gdkwin = gtk_widget_get_window(widget);
 644
 645         cm_return_if_fail(widget != NULL);
 646         cm_return_if_fail(gdkwin != NULL);
 647
 648         sx = gdk_screen_width();
 649         sy = gdk_screen_height();
 650
 651         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 652         gdk_window_get_root_origin(gdkwin, &x, &y);
 653
 654         x %= sx; if (x < 0) x = 0;
 655         y %= sy; if (y < 0) y = 0;
 656         *px = x;
 657         *py = y;
 658 }
 659
 660 void gtkut_widget_draw_now(GtkWidget *widget)
 661 {
 662         if (widget && gtk_widget_get_visible(widget) && gtk_widget_is_drawable(widget))
 663                 gdk_window_process_updates(gtk_widget_get_window(widget), FALSE);
 664 }
 665
 666 static void gtkut_clist_bindings_add(GtkWidget *clist)
 667 {
 668         GtkBindingSet *binding_set;
 669
 670         binding_set = gtk_binding_set_by_class
 671                 (GTK_CMCLIST_GET_CLASS(clist));
 672
 673         gtk_binding_entry_add_signal(binding_set, GDK_KEY_n, GDK_CONTROL_MASK,
 674                                      "scroll_vertical", 2,
 675                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 676                                      G_TYPE_FLOAT, 0.0);
 677         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 678                                      "scroll_vertical", 2,
 679                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 680                                      G_TYPE_FLOAT, 0.0);
 681 }
 682
 683 void gtkut_widget_init(void)
 684 {
 685         GtkWidget *clist;
 686
 687         clist = gtk_cmclist_new(1);
 688         g_object_ref(G_OBJECT(clist));
 689 #if GLIB_CHECK_VERSION(2,10,0)
 690         g_object_ref_sink (G_OBJECT(clist));
 691 #else
 692         gtk_object_ref (G_OBJECT(clist));
 693         gtk_object_sink (G_OBJECT(clist));
 694 #endif
 695         gtkut_clist_bindings_add(clist);
 696         g_object_unref(G_OBJECT(clist));
 697
 698         clist = gtk_cmctree_new(1, 0);
 699         g_object_ref(G_OBJECT(clist));
 700 #if GLIB_CHECK_VERSION(2,10,0)
 701         g_object_ref_sink (G_OBJECT(clist));
 702 #else
 703         gtk_object_ref (G_OBJECT(clist));
 704         gtk_object_sink (G_OBJECT(clist));
 705 #endif
 706         gtkut_clist_bindings_add(clist);
 707         g_object_unref(G_OBJECT(clist));
 708
 709         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 710         g_object_ref(G_OBJECT(clist));
 711 #if GLIB_CHECK_VERSION(2,10,0)
 712         g_object_ref_sink (G_OBJECT(clist));
 713 #else
 714         gtk_object_ref (G_OBJECT(clist));
 715         gtk_object_sink (G_OBJECT(clist));
 716 #endif
 717         gtkut_clist_bindings_add(clist);
 718         g_object_unref(G_OBJECT(clist));
 719 }
 720
 721 void gtkut_widget_set_app_icon(GtkWidget *widget)
 722 {
 723         static GdkPixbuf *icon = NULL;
 724
 725         cm_return_if_fail(widget != NULL);
 726         cm_return_if_fail(gtk_widget_get_window(widget) != NULL);
 727         if (!icon) {
 728                 stock_pixbuf_gdk(widget, STOCK_PIXMAP_CLAWS_MAIL_ICON, &icon);
 729         }
 730         if (icon)
 731                 gtk_window_set_icon(GTK_WINDOW(widget), icon);
 732 }
 733
 734 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 735 {
 736         static GdkPixbuf *icon = NULL;
 737
 738         cm_return_if_fail(widget != NULL);
 739         cm_return_if_fail(gtk_widget_get_window(widget) != NULL);
 740         if (!icon) {
 741                 stock_pixbuf_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &icon);
 742         }
 743         if (icon)
 744                 gtk_window_set_icon(GTK_WINDOW(widget), icon);
 745 }
 746
 747 static gboolean move_bar = FALSE;
 748 static gint move_bar_id = -1;
 749
 750 static gboolean move_bar_cb(gpointer data)
 751 {
 752         GtkWidget *w = (GtkWidget *)data;
 753         if (!move_bar)
 754                 return FALSE;
 755
 756         if (!GTK_IS_PROGRESS_BAR(w)) {
 757                 return FALSE;
 758         }
 759
 760         gtk_progress_bar_pulse(GTK_PROGRESS_BAR(w));
 761         GTK_EVENTS_FLUSH();
 762         return TRUE;
 763 }
 764
 765 GtkWidget *label_window_create(const gchar *str)
 766 {
 767         GtkWidget *window;
 768         GtkWidget *label, *vbox, *hbox;
 769         GtkWidget *wait_progress = gtk_progress_bar_new();
 770
 771         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "gtkutils");
 772         gtk_widget_set_size_request(window, 380, 70);
 773         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 774         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 775         gtk_window_set_title(GTK_WINDOW(window), str);
 776         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 777         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 778         manage_window_set_transient(GTK_WINDOW(window));
 779
 780         label = gtk_label_new(str);
 781
 782         vbox = gtk_vbox_new(FALSE, 6);
 783         hbox = gtk_hbox_new(FALSE, 6);
 784         gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, FALSE, 0);
 785         gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, FALSE, 0);
 786         hbox = gtk_hbox_new(FALSE, 6);
 787         gtk_box_pack_start(GTK_BOX(hbox), wait_progress, TRUE, FALSE, 0);
 788         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 789
 790         gtk_container_add(GTK_CONTAINER(window), vbox);
 791         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 792         gtk_misc_set_alignment(GTK_MISC(label), 0.5, 0.5);
 793         gtk_widget_show_all(vbox);
 794
 795         gtk_widget_show_now(window);
 796
 797         if (move_bar_id == -1) {
 798                 move_bar_id = g_timeout_add(200, move_bar_cb, wait_progress);
 799                 move_bar = TRUE;
 800         }
 801
 802         GTK_EVENTS_FLUSH();
 803
 804         return window;
 805 }
 806
 807 void label_window_destroy(GtkWidget *window)
 808 {
 809         move_bar = FALSE;
 810         g_source_remove(move_bar_id);
 811         move_bar_id = -1;
 812         GTK_EVENTS_FLUSH();
 813         gtk_widget_destroy(window);
 814 }
 815
 816 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 817                                         GCallback               callback,
 818                                   gpointer              data)
 819 {
 820         GList *cur_ac;
 821         GtkWidget *optmenu;
 822         GtkListStore *menu;
 823         GtkTreeIter iter;
 824         PrefsAccount *account;
 825         gchar *name;
 826
 827         cm_return_val_if_fail(ac_list != NULL, NULL);
 828
 829         optmenu = gtkut_sc_combobox_create(NULL, FALSE);
 830         menu = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(optmenu)));
 831
 832         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 833                 account = (PrefsAccount *) cur_ac->data;
 834                 if (account->name)
 835                         name = g_strdup_printf("%s: %s <%s>",
 836                                                account->account_name,
 837                                                account->name,
 838                                                account->address);
 839                 else
 840                         name = g_strdup_printf("%s: %s",
 841                                                account->account_name,
 842                                                account->address);
 843                 COMBOBOX_ADD_ESCAPED(menu, name, account->account_id);
 844                 g_free(name);
 845         }
 846         gtk_combo_box_set_active(GTK_COMBO_BOX(optmenu), 0);
 847
 848         if( callback != NULL )
 849                 g_signal_connect(G_OBJECT(optmenu), "changed", callback, data);
 850
 851         return optmenu;
 852 }
 853
 854 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 855 {
 856         GtkStyle *newstyle;
 857         GdkColor gdk_color;
 858
 859         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 860         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 861         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 862         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 863         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 864         gtk_widget_set_style(widget, newstyle);
 865 }
 866
 867 /*!
 868  *\brief        Tries to find a focused child using a lame strategy
 869  */
 870 GtkWidget *gtkut_get_focused_child(GtkContainer *parent)
 871 {
 872         GtkWidget *result = NULL;
 873         GList *child_list = NULL;
 874         GList *c;
 875
 876         cm_return_val_if_fail(parent, NULL);
 877
 878         /* Get children list and see which has the focus. */
 879         child_list = gtk_container_get_children(parent);
 880         if (!child_list)
 881                 return NULL;
 882
 883         for (c = child_list; c != NULL; c = g_list_next(c)) {
 884                 if (c->data && GTK_IS_WIDGET(c->data)) {
 885                         if (gtk_widget_has_focus(GTK_WIDGET(c->data))) {
 886                                 result = GTK_WIDGET(c->data);
 887                                 break;
 888                         }
 889                 }
 890         }
 891
 892         /* See if the returned widget is a container itself; if it is,
 893          * see if one of its children is focused. If the focused
 894          * container has no focused child, it is itself a focusable
 895          * child, and has focus. */
 896         if (result && GTK_IS_CONTAINER(result)) {
 897                 GtkWidget *tmp =  gtkut_get_focused_child(GTK_CONTAINER(result));
 898
 899                 if (tmp)
 900                         result = tmp;
 901         } else {
 902                 /* Try the same for each container in the chain */
 903                 for (c = child_list; c != NULL && !result; c = g_list_next(c)) {
 904                         if (c->data && GTK_IS_WIDGET(c->data)
 905                         &&  GTK_IS_CONTAINER(c->data)) {
 906                                 result = gtkut_get_focused_child
 907                                         (GTK_CONTAINER(c->data));
 908                         }
 909                 }
 910
 911         }
 912
 913         g_list_free(child_list);
 914
 915         return result;
 916 }
 917
 918 /*!
 919  *\brief        Create a Browse (file) button based on GTK+ stock
 920  */
 921 GtkWidget *gtkut_get_browse_file_btn(const gchar *button_label)
 922 {
 923         GtkWidget *button;
 924
 925         button = gtk_button_new_with_mnemonic(button_label);
 926         gtk_button_set_image(GTK_BUTTON(button),
 927                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 928
 929         return button;
 930 }
 931
 932 /*!
 933  *\brief        Create a Browse (directory) button based on GTK+ stock
 934  */
 935 GtkWidget *gtkut_get_browse_directory_btn(const gchar *button_label)
 936 {
 937         GtkWidget *button;
 938
 939         button = gtk_button_new_with_mnemonic(button_label);
 940         gtk_button_set_image(GTK_BUTTON(button),
 941                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 942
 943         return button;
 944 }
 945
 946 GtkWidget *gtkut_get_replace_btn(const gchar *button_label)
 947 {
 948         GtkWidget *button;
 949
 950         button = gtk_button_new_with_mnemonic(button_label);
 951         gtk_button_set_image(GTK_BUTTON(button),
 952                 gtk_image_new_from_stock(GTK_STOCK_REFRESH, GTK_ICON_SIZE_BUTTON));
 953
 954         return button;
 955 }
 956
 957 /**
 958  * merge some part of code into one function : it creates a frame and add
 959  *      these into gtk box widget passed in param.
 960  * \param box gtk box where adding new created frame.
 961  * \param pframe pointer with which to assign the frame. If NULL, no pointer
 962  *      is assigned but the frame is anyway created and added to @box.
 963  * \param frame_label frame label of new created frame.
 964  */
 965 GtkWidget *gtkut_get_options_frame(GtkWidget *box, GtkWidget **pframe,
 966                 const gchar *frame_label)
 967 {
 968         GtkWidget *vbox;
 969         GtkWidget *frame;
 970
 971         frame = gtk_frame_new(frame_label);
 972         gtk_widget_show(frame);
 973         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 974         gtk_frame_set_label_align(GTK_FRAME(frame), 0.01, 0.5);
 975
 976         vbox = gtk_vbox_new (FALSE, 4);
 977         gtk_widget_show(vbox);
 978         gtk_container_add(GTK_CONTAINER (frame), vbox);
 979         gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
 980
 981         if (pframe != NULL)
 982                 *pframe = frame;
 983
 984         return vbox;
 985 }
 986
 987 #if HAVE_LIBCOMPFACE
 988 static gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
 989 {
 990         static gchar *bit_pattern[] = {
 991                 "....",
 992                 "...#",
 993                 "..#.",
 994                 "..##",
 995                 ".#..",
 996                 ".#.#",
 997                 ".##.",
 998                 ".###",
 999                 "#...",
1000                 "#..#",
1001                 "#.#.",
1002                 "#.##",
1003                 "##..",
1004                 "##.#",
1005                 "###.",
1006                 "####"
1007         };
1008
1009         static gchar *xface_header = "48 48 2 1";
1010         static gchar *xface_black  = "# c #000000";
1011         static gchar *xface_white  = ". c #ffffff";
1012
1013         gint i, line = 0;
1014         const guchar *p;
1015         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
1016
1017         p = xface;
1018
1019         strcpy(xpm[line++], xface_header);
1020         strcpy(xpm[line++], xface_black);
1021         strcpy(xpm[line++], xface_white);
1022
1023         for (i = 0; i < HEIGHT; i++) {
1024                 gint col;
1025
1026                 buf[0] = '\0';
1027
1028                 for (col = 0; col < 3; col++) {
1029                         gint figure;
1030
1031                         p += 2;  /* skip '0x' */
1032
1033                         for (figure = 0; figure < 4; figure++) {
1034                                 gint n = 0;
1035
1036                                 if ('0' <= *p && *p <= '9') {
1037                                         n = *p - '0';
1038                                 } else if ('a' <= *p && *p <= 'f') {
1039                                         n = *p - 'a' + 10;
1040                                 } else if ('A' <= *p && *p <= 'F') {
1041                                         n = *p - 'A' + 10;
1042                                 }
1043
1044                                 strcat(buf, bit_pattern[n]);
1045                                 p++;  /* skip ',' */
1046                         }
1047
1048                         p++;  /* skip '\n' */
1049                 }
1050
1051                 strcpy(xpm[line++], buf);
1052                 p++;
1053         }
1054
1055         return 0;
1056 }
1057 #endif
1058
1059 gboolean get_tag_range(GtkTextIter *iter,
1060                                        GtkTextTag *tag,
1061                                        GtkTextIter *start_iter,
1062                                        GtkTextIter *end_iter)
1063 {
1064         GtkTextIter _start_iter, _end_iter;
1065
1066         _end_iter = *iter;
1067         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1068                 debug_print("Can't find end");
1069                 return FALSE;
1070         }
1071
1072         _start_iter = _end_iter;
1073         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1074                 debug_print("Can't find start.");
1075                 return FALSE;
1076         }
1077
1078         *start_iter = _start_iter;
1079         *end_iter = _end_iter;
1080
1081         return TRUE;
1082 }
1083
1084 #if HAVE_LIBCOMPFACE
1085 GtkWidget *xface_get_from_header(const gchar *o_xface, GdkColor *background,
1086                                  GdkWindow *window)
1087 {
1088         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1089         static gboolean xpm_xface_init = TRUE;
1090         gchar xface[2048];
1091         strncpy(xface, o_xface, sizeof(xface));
1092
1093         if (!window) {
1094                 g_warning("no window\n");
1095                 return NULL;
1096         }
1097         if (uncompface(xface) < 0) {
1098                 g_warning("uncompface failed\n");
1099                 return NULL;
1100         }
1101
1102         if (xpm_xface_init) {
1103                 gint i;
1104
1105                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1106                         xpm_xface[i] = g_malloc(WIDTH + 1);
1107                         *xpm_xface[i] = '\0';
1108                 }
1109                 xpm_xface_init = FALSE;
1110         }
1111
1112         create_xpm_from_xface(xpm_xface, xface);
1113
1114         return gtk_image_new_from_pixbuf(
1115                 gdk_pixbuf_new_from_xpm_data((const char **)xpm_xface));
1116 }
1117 #endif
1118
1119 GtkWidget *face_get_from_header(const gchar *o_face)
1120 {
1121         gchar face[2048];
1122         gchar face_png[2048];
1123         gint pngsize;
1124         GdkPixbuf *pixbuf;
1125         GError *error = NULL;
1126         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
1127         GtkWidget *image;
1128
1129         if (o_face == NULL || strlen(o_face) == 0)
1130                 return NULL;
1131
1132         strncpy2(face, o_face, sizeof(face));
1133
1134         unfold_line(face); /* strip all whitespace and linebreaks */
1135         remove_space(face);
1136
1137         pngsize = base64_decode(face_png, face, strlen(face));
1138
1139         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
1140             !gdk_pixbuf_loader_close (loader, &error)) {
1141                 g_warning("loading face failed\n");
1142                 g_object_unref(loader);
1143                 return NULL;
1144         }
1145
1146         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
1147
1148         g_object_unref(loader);
1149
1150         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
1151                 g_object_unref(pixbuf);
1152                 g_warning("wrong_size\n");
1153                 return NULL;
1154         }
1155
1156         image = gtk_image_new_from_pixbuf(pixbuf);
1157         g_object_unref(pixbuf);
1158         return image;
1159 }
1160
1161 static GdkCursor *hand_cursor = NULL;
1162
1163 static void link_btn_enter(GtkButton *button, gpointer data)
1164 {
1165         GdkWindow *gdkwin;
1166         GtkWidget *window = (GtkWidget *)data;
1167
1168         gdkwin = gtk_widget_get_window(window);
1169
1170         if (!hand_cursor)
1171                 hand_cursor = gdk_cursor_new(GDK_HAND2);
1172         if (window && gdkwin)
1173                 gdk_window_set_cursor(gdkwin, hand_cursor);
1174
1175         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1176         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1177
1178 }
1179
1180 static void link_btn_leave(GtkButton *button, gpointer data)
1181 {
1182         GdkWindow *gdkwin;
1183         GtkWidget *window = (GtkWidget *)data;
1184
1185         gdkwin = gtk_widget_get_window(window);
1186
1187         if (window && gdkwin)
1188                 gdk_window_set_cursor(gdkwin, NULL);
1189
1190         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1191         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1192 }
1193
1194 static void link_btn_pressed(GtkButton *button, gpointer data)
1195 {
1196         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1197         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1198 }
1199
1200 static void link_btn_released(GtkButton *button, gpointer data)
1201 {
1202         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1203         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1204 }
1205
1206 static void link_btn_clicked(GtkButton *button, gpointer data)
1207 {
1208         gchar *url = (gchar *)data;
1209         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1210         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1211         open_uri(url, prefs_common_get_uri_cmd());
1212 }
1213
1214 static void link_btn_unrealize(GtkButton *button, gpointer data)
1215 {
1216         gchar *url = (gchar *)data;
1217         g_signal_handlers_disconnect_by_func(G_OBJECT(button),
1218                          G_CALLBACK(link_btn_clicked), url);
1219         g_free(url);
1220 }
1221
1222 GtkWidget *gtkut_get_link_btn(GtkWidget *window, const gchar *url, const gchar *label)
1223 {
1224         GtkWidget *btn;
1225         GtkWidget *btn_label;
1226 #if !GTK_CHECK_VERSION(3, 0, 0)
1227         GdkColormap *cmap;
1228         gboolean success[2];
1229 #endif
1230         GdkColor uri_color[2] = {{0, 0, 0, 0xffff}, {0, 0xffff, 0, 0}};
1231         gchar *local_url = NULL;
1232         if (!url)
1233                 return NULL;
1234
1235         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1236                                                &uri_color[0]);
1237         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1238                                                &uri_color[1]);
1239
1240         btn = gtk_button_new_with_label(label?label:url);
1241         gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
1242         btn_label = gtk_bin_get_child(GTK_BIN((btn)));
1243 #if !GTK_CHECK_VERSION(3, 0, 0)
1244         cmap = gdk_drawable_get_colormap(gtk_widget_get_window(window));
1245         gdk_colormap_alloc_colors(cmap, uri_color, 2, FALSE, TRUE, success);
1246         if (success[0] == TRUE && success[1] == TRUE) {
1247 #endif
1248                 GtkStyle *style;
1249                 gtk_widget_ensure_style(btn_label);
1250                 style = gtk_style_copy
1251                         (gtk_widget_get_style(btn_label));
1252                 style->fg[GTK_STATE_NORMAL]   = uri_color[0];
1253                 style->fg[GTK_STATE_ACTIVE]   = uri_color[1];
1254                 style->fg[GTK_STATE_PRELIGHT] = uri_color[0];
1255                 gtk_widget_set_style(btn_label, style);
1256 #if !GTK_CHECK_VERSION(3, 0, 0)
1257         } else
1258                 g_warning("color allocation failed\n");
1259 #endif
1260
1261         g_signal_connect(G_OBJECT(btn), "enter",
1262                          G_CALLBACK(link_btn_enter), window);
1263         g_signal_connect(G_OBJECT(btn), "leave",
1264                          G_CALLBACK(link_btn_leave), window);
1265         g_signal_connect(G_OBJECT(btn), "pressed",
1266                          G_CALLBACK(link_btn_pressed), window);
1267         g_signal_connect(G_OBJECT(btn), "released",
1268                          G_CALLBACK(link_btn_released), window);
1269
1270         local_url = g_strdup(url);
1271         g_signal_connect(G_OBJECT(btn), "clicked",
1272                          G_CALLBACK(link_btn_clicked), local_url);
1273         g_signal_connect(G_OBJECT(btn), "unrealize",
1274                          G_CALLBACK(link_btn_unrealize), local_url);
1275         return btn;
1276 }
1277
1278 static gboolean _combobox_separator_func(GtkTreeModel *model,
1279                 GtkTreeIter *iter, gpointer data)
1280 {
1281         gchar *txt = NULL;
1282
1283         cm_return_val_if_fail(model != NULL, FALSE);
1284
1285         gtk_tree_model_get(model, iter, COMBOBOX_TEXT, &txt, -1);
1286
1287         if( txt == NULL )
1288                 return TRUE;
1289         return FALSE;
1290 }
1291
1292 GtkWidget *gtkut_sc_combobox_create(GtkWidget *eventbox, gboolean focus_on_click)
1293 {
1294         GtkWidget *combobox;
1295         GtkListStore *menu;
1296         GtkCellRenderer *rend;
1297
1298         menu = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_BOOLEAN);
1299
1300         combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(menu));
1301
1302         rend = gtk_cell_renderer_text_new();
1303         gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), rend, TRUE);
1304         gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combobox), rend,
1305                         "markup", COMBOBOX_TEXT,
1306                         "sensitive", COMBOBOX_SENS,
1307                         NULL);
1308
1309         if( eventbox != NULL )
1310                 gtk_container_add(GTK_CONTAINER(eventbox), combobox);
1311         gtk_combo_box_set_focus_on_click(GTK_COMBO_BOX(combobox), focus_on_click);
1312
1313         gtk_combo_box_set_row_separator_func(GTK_COMBO_BOX(combobox),
1314                         (GtkTreeViewRowSeparatorFunc)_combobox_separator_func, NULL, NULL);
1315
1316         return combobox;
1317 }
1318
1319 static void gtkutils_smooth_scroll_do(GtkWidget *widget, GtkAdjustment *vadj,
1320                                       gfloat old_value, gfloat last_value,
1321                                       gint step)
1322 {
1323         gint change_value;
1324         gboolean up;
1325         gint i;
1326
1327         if (old_value < last_value) {
1328                 change_value = last_value - old_value;
1329                 up = FALSE;
1330         } else {
1331                 change_value = old_value - last_value;
1332                 up = TRUE;
1333         }
1334
1335         for (i = step; i <= change_value; i += step) {
1336                 gtk_adjustment_set_value(vadj, old_value + (up ? -i : i));
1337                 g_signal_emit_by_name(G_OBJECT(vadj),
1338                                       "value_changed", 0);
1339         }
1340
1341         gtk_adjustment_set_value(vadj, last_value);
1342         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1343
1344         gtk_widget_queue_draw(widget);
1345 }
1346
1347 static gboolean gtkutils_smooth_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1348 {
1349         gfloat upper;
1350         gfloat page_incr;
1351         gfloat old_value;
1352         gfloat last_value;
1353
1354         page_incr = gtk_adjustment_get_page_increment(vadj);
1355         if (prefs_common.scroll_halfpage)
1356                 page_incr /= 2;
1357
1358         old_value = gtk_adjustment_get_value(vadj);
1359         if (!up) {
1360                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1361                 if (old_value < upper) {
1362                         last_value = old_value + page_incr;
1363                         last_value = MIN(last_value, upper);
1364
1365                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1366                                                   last_value,
1367                                                   prefs_common.scroll_step);
1368                 } else
1369                         return FALSE;
1370         } else {
1371                 if (old_value > 0.0) {
1372                         last_value = old_value - page_incr;
1373                         last_value = MAX(last_value, 0.0);
1374
1375                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1376                                                   last_value,
1377                                                   prefs_common.scroll_step);
1378                 } else
1379                         return FALSE;
1380         }
1381
1382         return TRUE;
1383 }
1384
1385 gboolean gtkutils_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1386 {
1387         gfloat upper;
1388         gfloat page_incr;
1389         gfloat old_value;
1390
1391         if (prefs_common.enable_smooth_scroll)
1392                 return gtkutils_smooth_scroll_page(widget, vadj, up);
1393
1394         page_incr = gtk_adjustment_get_page_increment(vadj);
1395         if (prefs_common.scroll_halfpage)
1396                 page_incr /= 2;
1397
1398         old_value = gtk_adjustment_get_value(vadj);
1399         if (!up) {
1400                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1401                 if (old_value < upper) {
1402                         old_value += page_incr;
1403                         old_value = MIN(old_value, upper);
1404                         gtk_adjustment_set_value(vadj, old_value);
1405                         g_signal_emit_by_name(G_OBJECT(vadj),
1406                                               "value_changed", 0);
1407                 } else
1408                         return FALSE;
1409         } else {
1410                 if (old_value > 0.0) {
1411                         old_value -= page_incr;
1412                         old_value = MAX(old_value, 0.0);
1413                         gtk_adjustment_set_value(vadj, old_value);
1414                         g_signal_emit_by_name(G_OBJECT(vadj),
1415                                               "value_changed", 0);
1416                 } else
1417                         return FALSE;
1418         }
1419         return TRUE;
1420 }
1421
1422 static void gtkutils_smooth_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1423 {
1424         gfloat upper;
1425         gfloat old_value;
1426         gfloat last_value;
1427
1428         old_value = gtk_adjustment_get_value(vadj);
1429         if (!up) {
1430                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1431                 if (old_value < upper) {
1432                         last_value = old_value + gtk_adjustment_get_step_increment(vadj);
1433                         last_value = MIN(last_value, upper);
1434
1435                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1436                                                   last_value,
1437                                                   prefs_common.scroll_step);
1438                 }
1439         } else {
1440                 if (old_value > 0.0) {
1441                         last_value = old_value - gtk_adjustment_get_step_increment(vadj);
1442                         last_value = MAX(last_value, 0.0);
1443
1444                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1445                                                   last_value,
1446                                                   prefs_common.scroll_step);
1447                 }
1448         }
1449 }
1450
1451 void gtkutils_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1452 {
1453         gfloat upper;
1454         gfloat old_value;
1455
1456         if (prefs_common.enable_smooth_scroll) {
1457                 gtkutils_smooth_scroll_one_line(widget, vadj, up);
1458                 return;
1459         }
1460
1461         old_value = gtk_adjustment_get_value(vadj);
1462         if (!up) {
1463                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1464                 if (old_value < upper) {
1465                         old_value += gtk_adjustment_get_step_increment(vadj);
1466                         old_value = MIN(old_value, upper);
1467                         gtk_adjustment_set_value(vadj, old_value);
1468                         g_signal_emit_by_name(G_OBJECT(vadj),
1469                                               "value_changed", 0);
1470                 }
1471         } else {
1472                 if (old_value > 0.0) {
1473                         old_value -= gtk_adjustment_get_step_increment(vadj);
1474                         old_value = MAX(old_value, 0.0);
1475                         gtk_adjustment_set_value(vadj, old_value);
1476                         g_signal_emit_by_name(G_OBJECT(vadj),
1477                                               "value_changed", 0);
1478                 }
1479         }
1480 }
1481
1482 gboolean gtkut_tree_model_text_iter_prev(GtkTreeModel *model,
1483                                  GtkTreeIter *iter,
1484                                  const gchar* text)
1485 /* do the same as gtk_tree_model_iter_next, but _prev instead.
1486    to use with widgets with one text column (gtk_combo_box_new_text()
1487    and with GtkComboBoxEntry's for instance),
1488 */
1489 {
1490         GtkTreeIter cur_iter;
1491         gchar *cur_value;
1492         gboolean valid;
1493         gint count;
1494
1495         cm_return_val_if_fail(model != NULL, FALSE);
1496         cm_return_val_if_fail(iter != NULL, FALSE);
1497
1498         if (text == NULL || *text == '\0')
1499                 return FALSE;
1500
1501         valid = gtk_tree_model_get_iter_first(model, &cur_iter);
1502         count = 0;
1503         while (valid) {
1504                 gtk_tree_model_get(model, &cur_iter, 0, &cur_value, -1);
1505
1506                 if (strcmp(text, cur_value) == 0) {
1507                         if (count <= 0)
1508                                 return FALSE;
1509
1510                         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1511                 }
1512
1513                 valid = gtk_tree_model_iter_next(model, &cur_iter);
1514                 count++;
1515         }
1516         return FALSE;
1517 }
1518
1519 gboolean gtkut_tree_model_get_iter_last(GtkTreeModel *model,
1520                                  GtkTreeIter *iter)
1521 /* do the same as gtk_tree_model_get_iter_first, but _last instead.
1522 */
1523 {
1524         gint count;
1525
1526         cm_return_val_if_fail(model != NULL, FALSE);
1527         cm_return_val_if_fail(iter != NULL, FALSE);
1528
1529         count = gtk_tree_model_iter_n_children(model, NULL);
1530
1531         if (count <= 0)
1532                 return FALSE;
1533
1534         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1535 }
1536
1537 GtkWidget *gtkut_window_new             (GtkWindowType   type,
1538                                          const gchar    *class)
1539 {
1540 #ifndef MAEMO
1541         GtkWidget *window = gtk_window_new(type);
1542 #else
1543         GtkWidget *window = hildon_window_new();
1544         hildon_program_add_window(hildon_program, HILDON_WINDOW(window));
1545 #endif
1546         gtk_window_set_role(GTK_WINDOW(window), class);
1547         return window;
1548 }
1549
1550 static gboolean gtkut_tree_iter_comp(GtkTreeModel *model,
1551                                      GtkTreeIter *iter1,
1552                                      GtkTreeIter *iter2)
1553 {
1554         GtkTreePath *path1 = gtk_tree_model_get_path(model, iter1);
1555         GtkTreePath *path2 = gtk_tree_model_get_path(model, iter2);
1556         gboolean result;
1557
1558         result = gtk_tree_path_compare(path1, path2) == 0;
1559
1560         gtk_tree_path_free(path1);
1561         gtk_tree_path_free(path2);
1562
1563         return result;
1564 }
1565
1566 /*!
1567  *\brief        Get selected row number.
1568  */
1569 gint gtkut_list_view_get_selected_row(GtkWidget *list_view)
1570 {
1571         GtkTreeView *view = GTK_TREE_VIEW(list_view);
1572         GtkTreeModel *model = gtk_tree_view_get_model(view);
1573         int n_rows = gtk_tree_model_iter_n_children(model, NULL);
1574         GtkTreeSelection *selection;
1575         GtkTreeIter iter;
1576         int row;
1577
1578         if (n_rows == 0)
1579                 return -1;
1580
1581         selection = gtk_tree_view_get_selection(view);
1582         if (!gtk_tree_selection_get_selected(selection, &model, &iter))
1583                 return -1;
1584
1585         /* get all iterators and compare them... */
1586         for (row = 0; row < n_rows; row++) {
1587                 GtkTreeIter itern;
1588
1589                 gtk_tree_model_iter_nth_child(model, &itern, NULL, row);
1590                 if (gtkut_tree_iter_comp(model, &iter, &itern))
1591                         return row;
1592         }
1593
1594         return -1;
1595 }
1596
1597 /*!
1598  *\brief        Select a row by its number.
1599  */
1600 gboolean gtkut_list_view_select_row(GtkWidget *list, gint row)
1601 {
1602         GtkTreeView *list_view = GTK_TREE_VIEW(list);
1603         GtkTreeSelection *selection = gtk_tree_view_get_selection(list_view);
1604         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
1605         GtkTreeIter iter;
1606         GtkTreePath *path;
1607
1608         if (!gtk_tree_model_iter_nth_child(model, &iter, NULL, row))
1609                 return FALSE;
1610
1611         gtk_tree_selection_select_iter(selection, &iter);
1612
1613         path = gtk_tree_model_get_path(model, &iter);
1614         gtk_tree_view_set_cursor(list_view, path, NULL, FALSE);
1615         gtk_tree_path_free(path);
1616
1617         return TRUE;
1618 }
1619
1620 static GtkUIManager *gui_manager = NULL;
1621
1622 GtkUIManager *gtkut_create_ui_manager(void)
1623 {
1624         cm_return_val_if_fail(gui_manager == NULL, gui_manager);
1625         return (gui_manager = gtk_ui_manager_new());
1626 }
1627
1628 GtkUIManager *gtkut_ui_manager(void)
1629 {
1630         return gui_manager;
1631 }
1632
1633 typedef struct _ClawsIOClosure ClawsIOClosure;
1634
1635 struct _ClawsIOClosure
1636 {
1637   ClawsIOFunc function;
1638   GIOCondition condition;
1639   GDestroyNotify notify;
1640   gpointer data;
1641 };
1642
1643 static gboolean
1644 claws_io_invoke (GIOChannel   *source,
1645                  GIOCondition  condition,
1646                  gpointer      data)
1647 {
1648   ClawsIOClosure *closure = data;
1649
1650   if (closure->condition & condition)
1651     closure->function (closure->data, g_io_channel_unix_get_fd (source),
1652                        condition);
1653
1654   return TRUE;
1655 }
1656
1657 static void
1658 claws_io_destroy (gpointer data)
1659 {
1660   ClawsIOClosure *closure = data;
1661
1662   if (closure->notify)
1663     closure->notify (closure->data);
1664
1665   g_free (closure);
1666 }
1667
1668 gint
1669 claws_input_add    (gint              source,
1670                     GIOCondition      condition,
1671                     ClawsIOFunc       function,
1672                     gpointer          data,
1673                     gboolean          is_sock)
1674 {
1675   guint result;
1676   ClawsIOClosure *closure = g_new (ClawsIOClosure, 1);
1677   GIOChannel *channel;
1678
1679   closure->function = function;
1680   closure->condition = condition;
1681   closure->notify = NULL;
1682   closure->data = data;
1683
1684 #ifndef G_OS_WIN32
1685   channel = g_io_channel_unix_new (source);
1686 #else
1687   if (is_sock)
1688     channel = g_io_channel_win32_new_socket(source);
1689   else
1690     channel = g_io_channel_win32_new_fd(source);
1691 #endif
1692   result = g_io_add_watch_full (channel, G_PRIORITY_DEFAULT, condition,
1693                                 claws_io_invoke,
1694                                 closure, claws_io_destroy);
1695   g_io_channel_unref (channel);
1696
1697   return result;
1698 }
1699
1700 void gtkut_widget_set_mapped(GtkWidget *widget, gboolean mapped)
1701 {
1702 #if GTK_CHECK_VERSION(2,20,0)
1703         gtk_widget_set_mapped(widget, mapped);
1704 #else
1705         if (mapped)
1706                 GTK_WIDGET_SET_FLAGS(widget, GTK_MAPPED);
1707         else
1708                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_MAPPED);
1709 #endif
1710 }
1711
1712 void gtkut_widget_set_realized(GtkWidget *widget, gboolean realized)
1713 {
1714 #if GTK_CHECK_VERSION(2,20,0)
1715         gtk_widget_set_realized(widget, realized);
1716 #else
1717         if (realized)
1718                 GTK_WIDGET_SET_FLAGS(widget, GTK_REALIZED);
1719         else
1720                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_REALIZED);
1721 #endif
1722 }
1723
1724 void gtkut_widget_set_can_default(GtkWidget *widget, gboolean can_default)
1725 {
1726 #if GTK_CHECK_VERSION(2,20,0)
1727         gtk_widget_set_can_default(widget, can_default);
1728 #else
1729         if (can_default)
1730                 GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_DEFAULT);
1731         else
1732                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_DEFAULT);
1733 #endif
1734 }
1735
1736 void gtkut_widget_set_receives_default(GtkWidget *widget, gboolean receives_default)
1737 {
1738 #if GTK_CHECK_VERSION(2,20,0)
1739         gtk_widget_set_receives_default(widget, receives_default);
1740 #else
1741         if (receives_default)
1742                 GTK_WIDGET_SET_FLAGS(widget, GTK_RECEIVES_DEFAULT);
1743         else
1744                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_RECEIVES_DEFAULT);
1745 #endif
1746 }
1747
1748 void gtkut_widget_set_can_focus(GtkWidget *widget, gboolean can_focus)
1749 {
1750 #if GTK_CHECK_VERSION(2,20,0)
1751         gtk_widget_set_can_focus(widget, can_focus);
1752 #else
1753         if (can_focus)
1754                 GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS);
1755         else
1756                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_FOCUS);
1757 #endif
1758 }
1759
1760 void gtkut_widget_set_has_window(GtkWidget *widget, gboolean has_window)
1761 {
1762 #if GTK_CHECK_VERSION(2,20,0)
1763         gtk_widget_set_has_window(widget, has_window);
1764 #else
1765         if (has_window) /* Inverted logic there */
1766                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_NO_WINDOW);
1767         else
1768                 GTK_WIDGET_SET_FLAGS(widget, GTK_NO_WINDOW);
1769 #endif
1770 }
1771
1772 /**
1773  * Load a pixbuf fitting inside the specified size. EXIF orientation is
1774  * respected if available.
1775  *
1776  * @param[in] filename          the file to load
1777  * @param[in] box_width         the max width (-1 for no resize)
1778  * @param[in] box_height        the max height (-1 for no resize)
1779  * @param[out] error            the possible load error
1780  *
1781  * @return a GdkPixbuf
1782  */
1783 GdkPixbuf *claws_load_pixbuf_fitting(GdkPixbuf *src_pixbuf, int box_width,
1784                                      int box_height)
1785 {
1786         gint w, h, orientation, angle;
1787         gint avail_width, avail_height;
1788         gboolean flip_horiz, flip_vert;
1789         const gchar *orient_str;
1790         GdkPixbuf *pixbuf, *t_pixbuf;
1791
1792         pixbuf = src_pixbuf;
1793
1794         if (pixbuf == NULL)
1795                 return NULL;
1796
1797         angle = 0;
1798         flip_horiz = flip_vert = FALSE;
1799
1800         /* EXIF orientation */
1801         orient_str = gdk_pixbuf_get_option(pixbuf, "orientation");
1802         if (orient_str != NULL && *orient_str != '\0') {
1803                 orientation = atoi(orient_str);
1804                 switch(orientation) {
1805                         /* See EXIF standard for different values */
1806                         case 1: break;
1807                         case 2: flip_horiz = 1;
1808                                 break;
1809                         case 3: angle = 180;
1810                                 break;
1811                         case 4: flip_vert = 1;
1812                                 break;
1813                         case 5: angle = 90;
1814                                 flip_horiz = 1;
1815                                 break;
1816                         case 6: angle = 270;
1817                                 break;
1818                         case 7: angle = 90;
1819                                 flip_vert = 1;
1820                                 break;
1821                         case 8: angle = 90;
1822                                 break;
1823                 }
1824         }
1825
1826         w = gdk_pixbuf_get_width(pixbuf);
1827         h = gdk_pixbuf_get_height(pixbuf);
1828
1829         if (angle == 90 || angle == 270) {
1830                 avail_height = box_width;
1831                 avail_width = box_height;
1832         } else {
1833                 avail_width = box_width;
1834                 avail_height = box_height;
1835         }
1836
1837         /* Scale first */
1838         if (box_width != -1 && box_height != -1 && avail_width - 100 > 0) {
1839                 if (w > avail_width) {
1840                         h = (avail_width * h) / w;
1841                         w = avail_width;
1842                 }
1843                 if (h > avail_height) {
1844                         w = (avail_height * w) / h;
1845                         h = avail_height;
1846                 }
1847                 t_pixbuf = gdk_pixbuf_scale_simple(pixbuf,
1848                         w, h, GDK_INTERP_BILINEAR);
1849                 g_object_unref(pixbuf);
1850                 pixbuf = t_pixbuf;
1851         }
1852
1853         /* Rotate if needed */
1854         if (angle != 0) {
1855                 t_pixbuf = gdk_pixbuf_rotate_simple(pixbuf, angle);
1856                 g_object_unref(pixbuf);
1857                 pixbuf = t_pixbuf;
1858         }
1859
1860         /* Flip horizontally if needed */
1861         if (flip_horiz) {
1862                 t_pixbuf = gdk_pixbuf_flip(pixbuf, TRUE);
1863                 g_object_unref(pixbuf);
1864                 pixbuf = t_pixbuf;
1865         }
1866
1867         /* Flip vertically if needed */
1868         if (flip_vert) {
1869                 t_pixbuf = gdk_pixbuf_flip(pixbuf, FALSE);
1870                 g_object_unref(pixbuf);
1871                 pixbuf = t_pixbuf;
1872         }
1873
1874         return pixbuf;
1875 }