src/gtk/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2011 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 #endif
  23
  24 #include <glib.h>
  25 #include <glib/gi18n.h>
  26 #include <gdk/gdkkeysyms.h>
  27 #include <gdk/gdk.h>
  28 #include <gtk/gtk.h>
  29 #if !GTK_CHECK_VERSION(3, 0, 0)
  30 #include "gtk/gtksctree.h"
  31 #endif
  32 #include <stdlib.h>
  33 #include <stdarg.h>
  34 #include <sys/stat.h>
  35
  36 #include "combobox.h"
  37
  38 #if HAVE_LIBCOMPFACE
  39 #  include <compface.h>
  40 #endif
  41
  42 #if HAVE_LIBCOMPFACE
  43 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  44 #endif
  45
  46 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
  47 #  include <wchar.h>
  48 #  include <wctype.h>
  49 #endif
  50
  51 #include "defs.h"
  52 #include "gtkutils.h"
  53 #include "utils.h"
  54 #if !GTK_CHECK_VERSION(3, 0, 0)
  55 #include "gtksctree.h"
  56 #endif
  57 #include "codeconv.h"
  58 #include "stock_pixmap.h"
  59 #include "menu.h"
  60 #include "prefs_account.h"
  61 #include "prefs_common.h"
  62 #include "manage_window.h"
  63 #include "base64.h"
  64 #include "manual.h"
  65 #include "combobox.h"
  66
  67 gboolean gtkut_get_font_size(GtkWidget *widget,
  68                              gint *width, gint *height)
  69 {
  70         PangoLayout *layout;
  71         const gchar *str = "Abcdef";
  72
  73         cm_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  74
  75         layout = gtk_widget_create_pango_layout(widget, str);
  76         cm_return_val_if_fail(layout, FALSE);
  77         pango_layout_get_pixel_size(layout, width, height);
  78         if (width)
  79                 *width = *width / g_utf8_strlen(str, -1);
  80         g_object_unref(layout);
  81
  82         return TRUE;
  83 }
  84
  85 void gtkut_widget_set_small_font_size(GtkWidget *widget)
  86 {
  87         PangoFontDescription *font_desc;
  88         gint size;
  89
  90         cm_return_if_fail(widget != NULL);
  91         cm_return_if_fail(gtk_widget_get_style(widget) != NULL);
  92
  93         if (prefs_common.derive_from_normal_font || !SMALL_FONT) {
  94                 font_desc = pango_font_description_from_string(NORMAL_FONT);
  95                 size = pango_font_description_get_size(font_desc);
  96                 pango_font_description_set_size(font_desc, size * PANGO_SCALE_SMALL);
  97                 gtk_widget_modify_font(widget, font_desc);
  98                 pango_font_description_free(font_desc);
  99         } else {
 100                 font_desc = pango_font_description_from_string(SMALL_FONT);
 101                 gtk_widget_modify_font(widget, font_desc);
 102                 pango_font_description_free(font_desc);
 103         }
 104 }
 105
 106 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
 107 {
 108         cm_return_if_fail(color != NULL);
 109
 110         color->pixel = 0L;
 111         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
 112         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
 113         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
 114 }
 115
 116 #define CL(x)   (((gulong) (x) >> (gulong) 8) & 0xFFUL)
 117 #define RGB_FROM_GDK_COLOR(c) \
 118         ((CL(c->red)   << (gulong) 16) | \
 119          (CL(c->green) << (gulong)  8) | \
 120          (CL(c->blue)))
 121
 122 gint gtkut_convert_gdk_color_to_int(GdkColor *color)
 123 {
 124         return RGB_FROM_GDK_COLOR(color);
 125 }
 126
 127 void gtkut_stock_button_add_help(GtkWidget *bbox, GtkWidget **help_btn)
 128 {
 129         cm_return_if_fail(bbox != NULL);
 130
 131         *help_btn = gtk_button_new_from_stock(GTK_STOCK_HELP);
 132
 133         gtkut_widget_set_can_default(*help_btn, TRUE);
 134         gtk_box_pack_end(GTK_BOX (bbox), *help_btn, TRUE, TRUE, 0);
 135         gtk_button_box_set_child_secondary(GTK_BUTTON_BOX (bbox),
 136                         *help_btn, TRUE);
 137         gtk_widget_set_sensitive(*help_btn,
 138                         manual_available(MANUAL_MANUAL_CLAWS));
 139         gtk_widget_show(*help_btn);
 140 }
 141
 142 void gtkut_stock_button_set_create_with_help(GtkWidget **bbox,
 143                 GtkWidget **help_button,
 144                 GtkWidget **button1, const gchar *label1,
 145                 GtkWidget **button2, const gchar *label2,
 146                 GtkWidget **button3, const gchar *label3)
 147 {
 148         cm_return_if_fail(bbox != NULL);
 149         cm_return_if_fail(button1 != NULL);
 150
 151         gtkut_stock_button_set_create(bbox, button1, label1,
 152                         button2, label2, button3, label3);
 153
 154         gtkut_stock_button_add_help(*bbox, help_button);
 155 }
 156
 157 void gtkut_stock_button_set_create(GtkWidget **bbox,
 158                                    GtkWidget **button1, const gchar *label1,
 159                                    GtkWidget **button2, const gchar *label2,
 160                                    GtkWidget **button3, const gchar *label3)
 161 {
 162         cm_return_if_fail(bbox != NULL);
 163         cm_return_if_fail(button1 != NULL);
 164
 165         *bbox = gtk_hbutton_box_new();
 166         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 167         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 168
 169         *button1 = gtk_button_new_from_stock(label1);
 170         gtkut_widget_set_can_default(*button1, TRUE);
 171         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 172         gtk_widget_show(*button1);
 173
 174         if (button2) {
 175                 *button2 = gtk_button_new_from_stock(label2);
 176                 gtkut_widget_set_can_default(*button2, TRUE);
 177                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 178                 gtk_widget_show(*button2);
 179         }
 180
 181         if (button3) {
 182                 *button3 = gtk_button_new_from_stock(label3);
 183                 gtkut_widget_set_can_default(*button3, TRUE);
 184                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 185                 gtk_widget_show(*button3);
 186         }
 187 }
 188
 189 void gtkut_stock_with_text_button_set_create(GtkWidget **bbox,
 190                                    GtkWidget **button1, const gchar *label1, const gchar *text1,
 191                                    GtkWidget **button2, const gchar *label2, const gchar *text2,
 192                                    GtkWidget **button3, const gchar *label3, const gchar *text3)
 193 {
 194         cm_return_if_fail(bbox != NULL);
 195         cm_return_if_fail(button1 != NULL);
 196
 197         *bbox = gtk_hbutton_box_new();
 198         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 199         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 200
 201         *button1 = gtk_button_new_with_mnemonic(text1);
 202         gtk_button_set_image(GTK_BUTTON(*button1),
 203                 gtk_image_new_from_stock(label1, GTK_ICON_SIZE_BUTTON));
 204         gtkut_widget_set_can_default(*button1, TRUE);
 205         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 206         gtk_widget_show(*button1);
 207
 208         if (button2) {
 209                 *button2 = gtk_button_new_with_mnemonic(text2);
 210                 gtk_button_set_image(GTK_BUTTON(*button2),
 211                         gtk_image_new_from_stock(label2, GTK_ICON_SIZE_BUTTON));
 212                 gtkut_widget_set_can_default(*button2, TRUE);
 213                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 214                 gtk_widget_show(*button2);
 215         }
 216
 217         if (button3) {
 218                 *button3 = gtk_button_new_with_mnemonic(text3);
 219                 gtk_button_set_image(GTK_BUTTON(*button3),
 220                         gtk_image_new_from_stock(label3, GTK_ICON_SIZE_BUTTON));
 221                 gtkut_widget_set_can_default(*button3, TRUE);
 222                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 223                 gtk_widget_show(*button3);
 224         }
 225 }
 226
 227 #define CELL_SPACING 1
 228 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 229                                     (((row) + 1) * CELL_SPACING) + \
 230                                     (clist)->voffset)
 231 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 232                                    ((clist)->row_height + CELL_SPACING))
 233
 234 void gtkut_ctree_node_move_if_on_the_edge(GtkCMCTree *ctree, GtkCMCTreeNode *node, gint _row)
 235 {
 236         GtkCMCList *clist = GTK_CMCLIST(ctree);
 237         gint row;
 238         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 239
 240         cm_return_if_fail(ctree != NULL);
 241         cm_return_if_fail(node != NULL);
 242
 243         row = (_row != -1 ? _row : g_list_position(clist->row_list, (GList *)node));
 244
 245         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 246         row_visibility = gtk_cmclist_row_is_visible(clist, row);
 247         prev_row_visibility = gtk_cmclist_row_is_visible(clist, row - 1);
 248         next_row_visibility = gtk_cmclist_row_is_visible(clist, row + 1);
 249
 250         if (row_visibility == GTK_VISIBILITY_NONE) {
 251                 gtk_cmclist_moveto(clist, row, -1, 0.5, 0);
 252                 return;
 253         }
 254         if (row_visibility == GTK_VISIBILITY_FULL &&
 255             prev_row_visibility == GTK_VISIBILITY_FULL &&
 256             next_row_visibility == GTK_VISIBILITY_FULL)
 257                 return;
 258         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 259             next_row_visibility != GTK_VISIBILITY_FULL)
 260                 return;
 261
 262         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 263                 gtk_cmclist_moveto(clist, row, -1, 0.2, 0);
 264                 return;
 265         }
 266         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 267                 gtk_cmclist_moveto(clist, row, -1, 0.8, 0);
 268                 return;
 269         }
 270 }
 271
 272 #undef CELL_SPACING
 273 #undef ROW_TOP_YPIXEL
 274 #undef ROW_FROM_YPIXEL
 275
 276 gint gtkut_ctree_get_nth_from_node(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 277 {
 278         cm_return_val_if_fail(ctree != NULL, -1);
 279         cm_return_val_if_fail(node != NULL, -1);
 280
 281         return g_list_position(GTK_CMCLIST(ctree)->row_list, (GList *)node);
 282 }
 283
 284 /* get the next node, including the invisible one */
 285 GtkCMCTreeNode *gtkut_ctree_node_next(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 286 {
 287         GtkCMCTreeNode *parent;
 288
 289         if (!node) return NULL;
 290
 291         if (GTK_CMCTREE_ROW(node)->children)
 292                 return GTK_CMCTREE_ROW(node)->children;
 293
 294         if (GTK_CMCTREE_ROW(node)->sibling)
 295                 return GTK_CMCTREE_ROW(node)->sibling;
 296
 297         for (parent = GTK_CMCTREE_ROW(node)->parent; parent != NULL;
 298              parent = GTK_CMCTREE_ROW(parent)->parent) {
 299                 if (GTK_CMCTREE_ROW(parent)->sibling)
 300                         return GTK_CMCTREE_ROW(parent)->sibling;
 301         }
 302
 303         return NULL;
 304 }
 305
 306 /* get the previous node, including the invisible one */
 307 GtkCMCTreeNode *gtkut_ctree_node_prev(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 308 {
 309         GtkCMCTreeNode *prev;
 310         GtkCMCTreeNode *child;
 311
 312         if (!node) return NULL;
 313
 314         prev = GTK_CMCTREE_NODE_PREV(node);
 315         if (prev == GTK_CMCTREE_ROW(node)->parent)
 316                 return prev;
 317
 318         child = prev;
 319         while (GTK_CMCTREE_ROW(child)->children != NULL) {
 320                 child = GTK_CMCTREE_ROW(child)->children;
 321                 while (GTK_CMCTREE_ROW(child)->sibling != NULL)
 322                         child = GTK_CMCTREE_ROW(child)->sibling;
 323         }
 324
 325         return child;
 326 }
 327
 328 gboolean gtkut_ctree_node_is_selected(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 329 {
 330         GtkCMCList *clist = GTK_CMCLIST(ctree);
 331         GList *cur;
 332
 333         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 334                 if (node == GTK_CMCTREE_NODE(cur->data))
 335                         return TRUE;
 336         }
 337
 338         return FALSE;
 339 }
 340
 341 GtkCMCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCMCTree *ctree,
 342                                                 GtkCMCTreeNode *node)
 343 {
 344         if (!node) return NULL;
 345
 346         while ((node = GTK_CMCTREE_ROW(node)->parent) != NULL) {
 347                 if (!GTK_CMCTREE_ROW(node)->expanded)
 348                         return node;
 349         }
 350
 351         return NULL;
 352 }
 353
 354 void gtkut_ctree_expand_parent_all(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 355 {
 356         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 357                 gtk_cmctree_expand(ctree, node);
 358 }
 359
 360 gboolean gtkut_ctree_node_is_parent(GtkCMCTreeNode *parent, GtkCMCTreeNode *node)
 361 {
 362         GtkCMCTreeNode *tmp;
 363         cm_return_val_if_fail(node != NULL, FALSE);
 364         cm_return_val_if_fail(parent != NULL, FALSE);
 365         tmp = node;
 366
 367         while (tmp) {
 368                 if(GTK_CMCTREE_ROW(tmp)->parent && GTK_CMCTREE_ROW(tmp)->parent == parent)
 369                         return TRUE;
 370                 tmp = GTK_CMCTREE_ROW(tmp)->parent;
 371         }
 372
 373         return FALSE;
 374 }
 375
 376 void gtkut_ctree_set_focus_row(GtkCMCTree *ctree, GtkCMCTreeNode *node)
 377 {
 378         if (node == NULL)
 379                 return;
 380         gtkut_clist_set_focus_row(GTK_CMCLIST(ctree),
 381                                   gtkut_ctree_get_nth_from_node(ctree, node));
 382 }
 383
 384 void gtkut_clist_set_focus_row(GtkCMCList *clist, gint row)
 385 {
 386         clist->focus_row = row;
 387         GTKUT_CTREE_REFRESH(clist);
 388 }
 389
 390 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 391 {
 392         gtk_container_remove(container, widget);
 393 }
 394
 395 static gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf,
 396                                         const GtkTextIter *iter,
 397                                         gunichar *wcs, gint len,
 398                                         gboolean case_sens)
 399 {
 400         GtkTextIter start_iter, end_iter;
 401         gchar *utf8str, *p;
 402         gint match_count;
 403
 404         start_iter = end_iter = *iter;
 405         gtk_text_iter_forward_chars(&end_iter, len);
 406
 407         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter,
 408                                            FALSE);
 409         if (!utf8str) return FALSE;
 410
 411         if ((gint)g_utf8_strlen(utf8str, -1) != len) {
 412                 g_free(utf8str);
 413                 return FALSE;
 414         }
 415
 416         for (p = utf8str, match_count = 0;
 417              *p != '\0' && match_count < len;
 418              p = g_utf8_next_char(p), match_count++) {
 419                 gunichar wc;
 420
 421                 wc = g_utf8_get_char(p);
 422
 423                 if (case_sens) {
 424                         if (wc != wcs[match_count])
 425                                 break;
 426                 } else {
 427                         if (g_unichar_tolower(wc) !=
 428                             g_unichar_tolower(wcs[match_count]))
 429                                 break;
 430                 }
 431         }
 432
 433         g_free(utf8str);
 434
 435         if (match_count == len)
 436                 return TRUE;
 437         else
 438                 return FALSE;
 439 }
 440
 441 static gboolean gtkut_text_buffer_find(GtkTextBuffer *buffer, const GtkTextIter *iter,
 442                                 const gchar *str, gboolean case_sens,
 443                                 GtkTextIter *match_pos)
 444 {
 445         gunichar *wcs;
 446         gint len;
 447         glong items_read = 0, items_written = 0;
 448         GError *error = NULL;
 449         GtkTextIter iter_;
 450         gboolean found = FALSE;
 451
 452         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 453         if (error != NULL) {
 454                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n",
 455                           error->message);
 456                 g_error_free(error);
 457         }
 458         if (!wcs || items_written <= 0) return FALSE;
 459         len = (gint)items_written;
 460
 461         iter_ = *iter;
 462         do {
 463                 found = gtkut_text_buffer_match_string
 464                         (buffer, &iter_, wcs, len, case_sens);
 465                 if (found) {
 466                         *match_pos = iter_;
 467                         break;
 468                 }
 469         } while (gtk_text_iter_forward_char(&iter_));
 470
 471         g_free(wcs);
 472
 473         return found;
 474 }
 475
 476 static gboolean gtkut_text_buffer_find_backward(GtkTextBuffer *buffer,
 477                                          const GtkTextIter *iter,
 478                                          const gchar *str, gboolean case_sens,
 479                                          GtkTextIter *match_pos)
 480 {
 481         gunichar *wcs;
 482         gint len;
 483         glong items_read = 0, items_written = 0;
 484         GError *error = NULL;
 485         GtkTextIter iter_;
 486         gboolean found = FALSE;
 487
 488         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 489         if (error != NULL) {
 490                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n", error->message);
 491                 g_error_free(error);
 492         }
 493         if (!wcs || items_written <= 0) return FALSE;
 494         len = (gint)items_written;
 495
 496         iter_ = *iter;
 497         while (gtk_text_iter_backward_char(&iter_)) {
 498                 found = gtkut_text_buffer_match_string
 499                         (buffer, &iter_, wcs, len, case_sens);
 500                 if (found) {
 501                         *match_pos = iter_;
 502                         break;
 503                 }
 504         }
 505
 506         g_free(wcs);
 507
 508         return found;
 509 }
 510
 511 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 512 {
 513         GtkTextBuffer *buffer;
 514         GtkTextIter start_iter, end_iter;
 515         gboolean found;
 516
 517         cm_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 518
 519         buffer = gtk_text_view_get_buffer(textview);
 520         found = gtk_text_buffer_get_selection_bounds(buffer,
 521                                                      &start_iter,
 522                                                      &end_iter);
 523         if (found)
 524                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 525                                                 FALSE);
 526         else
 527                 return NULL;
 528 }
 529
 530
 531 void gtkut_text_view_set_position(GtkTextView *text, gint pos)
 532 {
 533         GtkTextBuffer *buffer;
 534         GtkTextIter iter;
 535
 536         cm_return_if_fail(text != NULL);
 537
 538         buffer = gtk_text_view_get_buffer(text);
 539
 540         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
 541         gtk_text_buffer_place_cursor(buffer, &iter);
 542         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
 543 }
 544
 545 gboolean gtkut_text_view_search_string(GtkTextView *text, const gchar *str,
 546                                         gboolean case_sens)
 547 {
 548         GtkTextBuffer *buffer;
 549         GtkTextIter iter, match_pos;
 550         GtkTextMark *mark;
 551         gint len;
 552
 553         cm_return_val_if_fail(text != NULL, FALSE);
 554         cm_return_val_if_fail(str != NULL, FALSE);
 555
 556         buffer = gtk_text_view_get_buffer(text);
 557
 558         len = g_utf8_strlen(str, -1);
 559         cm_return_val_if_fail(len >= 0, FALSE);
 560
 561         mark = gtk_text_buffer_get_insert(buffer);
 562         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 563
 564         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
 565                                    &match_pos)) {
 566                 GtkTextIter end = match_pos;
 567
 568                 gtk_text_iter_forward_chars(&end, len);
 569                 /* place "insert" at the last character */
 570                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
 571                 gtk_text_view_scroll_to_mark(text, mark, 0.0, TRUE, 0.0, 0.5);
 572                 return TRUE;
 573         }
 574
 575         return FALSE;
 576 }
 577
 578 gboolean gtkut_text_view_search_string_backward(GtkTextView *text, const gchar *str,
 579                                         gboolean case_sens)
 580 {
 581         GtkTextBuffer *buffer;
 582         GtkTextIter iter, match_pos;
 583         GtkTextMark *mark;
 584         gint len;
 585
 586         cm_return_val_if_fail(text != NULL, FALSE);
 587         cm_return_val_if_fail(str != NULL, FALSE);
 588
 589         buffer = gtk_text_view_get_buffer(text);
 590
 591         len = g_utf8_strlen(str, -1);
 592         cm_return_val_if_fail(len >= 0, FALSE);
 593
 594         mark = gtk_text_buffer_get_insert(buffer);
 595         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 596
 597         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
 598                                             &match_pos)) {
 599                 GtkTextIter end = match_pos;
 600
 601                 gtk_text_iter_forward_chars(&end, len);
 602                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
 603                 gtk_text_view_scroll_to_mark(text, mark, 0.0, TRUE, 0.0, 0.5);
 604                 return TRUE;
 605         }
 606
 607         return FALSE;
 608 }
 609
 610 void gtkut_window_popup(GtkWidget *window)
 611 {
 612         GdkWindow *gdkwin;
 613         gint x, y, sx, sy, new_x, new_y;
 614
 615         gdkwin = gtk_widget_get_window(window);
 616
 617         cm_return_if_fail(window != NULL);
 618         cm_return_if_fail(gdkwin != NULL);
 619
 620         sx = gdk_screen_width();
 621         sy = gdk_screen_height();
 622
 623         gdk_window_get_origin(gdkwin, &x, &y);
 624         new_x = x % sx; if (new_x < 0) new_x = 0;
 625         new_y = y % sy; if (new_y < 0) new_y = 0;
 626         if (new_x != x || new_y != y)
 627                 gdk_window_move(gdkwin, new_x, new_y);
 628
 629         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(window), FALSE);
 630         gtk_window_present_with_time(GTK_WINDOW(window), time(NULL));
 631 }
 632
 633 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 634 {
 635         GdkWindow *gdkwin;
 636         gint x, y;
 637         gint sx, sy;
 638
 639         gdkwin = gtk_widget_get_window(widget);
 640
 641         cm_return_if_fail(widget != NULL);
 642         cm_return_if_fail(gdkwin != NULL);
 643
 644         sx = gdk_screen_width();
 645         sy = gdk_screen_height();
 646
 647         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 648         gdk_window_get_root_origin(gdkwin, &x, &y);
 649
 650         x %= sx; if (x < 0) x = 0;
 651         y %= sy; if (y < 0) y = 0;
 652         *px = x;
 653         *py = y;
 654 }
 655
 656 void gtkut_widget_draw_now(GtkWidget *widget)
 657 {
 658         if (widget && gtkut_widget_get_visible(widget) && gtkut_widget_is_drawable(widget))
 659                 gdk_window_process_updates(gtk_widget_get_window(widget), FALSE);
 660 }
 661
 662 static void gtkut_clist_bindings_add(GtkWidget *clist)
 663 {
 664         GtkBindingSet *binding_set;
 665
 666         binding_set = gtk_binding_set_by_class
 667                 (GTK_CMCLIST_GET_CLASS(clist));
 668
 669         gtk_binding_entry_add_signal(binding_set, GDK_KEY_n, GDK_CONTROL_MASK,
 670                                      "scroll_vertical", 2,
 671                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 672                                      G_TYPE_FLOAT, 0.0);
 673         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 674                                      "scroll_vertical", 2,
 675                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 676                                      G_TYPE_FLOAT, 0.0);
 677 }
 678
 679 void gtkut_widget_init(void)
 680 {
 681         GtkWidget *clist;
 682
 683         clist = gtk_cmclist_new(1);
 684         g_object_ref(G_OBJECT(clist));
 685 #if GLIB_CHECK_VERSION(2,10,0)
 686         g_object_ref_sink (G_OBJECT(clist));
 687 #else
 688         gtk_object_ref (G_OBJECT(clist));
 689         gtk_object_sink (G_OBJECT(clist));
 690 #endif
 691         gtkut_clist_bindings_add(clist);
 692         g_object_unref(G_OBJECT(clist));
 693
 694         clist = gtk_cmctree_new(1, 0);
 695         g_object_ref(G_OBJECT(clist));
 696 #if GLIB_CHECK_VERSION(2,10,0)
 697         g_object_ref_sink (G_OBJECT(clist));
 698 #else
 699         gtk_object_ref (G_OBJECT(clist));
 700         gtk_object_sink (G_OBJECT(clist));
 701 #endif
 702         gtkut_clist_bindings_add(clist);
 703         g_object_unref(G_OBJECT(clist));
 704
 705         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 706         g_object_ref(G_OBJECT(clist));
 707 #if GLIB_CHECK_VERSION(2,10,0)
 708         g_object_ref_sink (G_OBJECT(clist));
 709 #else
 710         gtk_object_ref (G_OBJECT(clist));
 711         gtk_object_sink (G_OBJECT(clist));
 712 #endif
 713         gtkut_clist_bindings_add(clist);
 714         g_object_unref(G_OBJECT(clist));
 715 }
 716
 717 void gtkut_widget_set_app_icon(GtkWidget *widget)
 718 {
 719         static GdkPixbuf *icon = NULL;
 720
 721         cm_return_if_fail(widget != NULL);
 722         cm_return_if_fail(gtk_widget_get_window(widget) != NULL);
 723         if (!icon) {
 724                 stock_pixbuf_gdk(widget, STOCK_PIXMAP_CLAWS_MAIL_ICON, &icon);
 725         }
 726         if (icon)
 727                 gtk_window_set_icon(GTK_WINDOW(widget), icon);
 728 }
 729
 730 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 731 {
 732         static GdkPixbuf *icon = NULL;
 733
 734         cm_return_if_fail(widget != NULL);
 735         cm_return_if_fail(gtk_widget_get_window(widget) != NULL);
 736         if (!icon) {
 737                 stock_pixbuf_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &icon);
 738         }
 739         if (icon)
 740                 gtk_window_set_icon(GTK_WINDOW(widget), icon);
 741 }
 742
 743 static gboolean move_bar = FALSE;
 744 static gint move_bar_id = -1;
 745
 746 static gboolean move_bar_cb(gpointer data)
 747 {
 748         GtkWidget *w = (GtkWidget *)data;
 749         if (!move_bar)
 750                 return FALSE;
 751
 752         if (!GTK_IS_PROGRESS_BAR(w)) {
 753                 return FALSE;
 754         }
 755
 756         gtk_progress_bar_pulse(GTK_PROGRESS_BAR(w));
 757         GTK_EVENTS_FLUSH();
 758         return TRUE;
 759 }
 760
 761 GtkWidget *label_window_create(const gchar *str)
 762 {
 763         GtkWidget *window;
 764         GtkWidget *label, *vbox, *hbox;
 765         GtkWidget *wait_progress = gtk_progress_bar_new();
 766
 767         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "gtkutils");
 768         gtk_widget_set_size_request(window, 380, 70);
 769         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 770         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 771         gtk_window_set_title(GTK_WINDOW(window), str);
 772         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 773         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 774         manage_window_set_transient(GTK_WINDOW(window));
 775
 776         label = gtk_label_new(str);
 777
 778         vbox = gtk_vbox_new(FALSE, 6);
 779         hbox = gtk_hbox_new(FALSE, 6);
 780         gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, FALSE, 0);
 781         gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, FALSE, 0);
 782         hbox = gtk_hbox_new(FALSE, 6);
 783         gtk_box_pack_start(GTK_BOX(hbox), wait_progress, TRUE, FALSE, 0);
 784         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 785
 786         gtk_container_add(GTK_CONTAINER(window), vbox);
 787         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 788         gtk_misc_set_alignment(GTK_MISC(label), 0.5, 0.5);
 789         gtk_widget_show_all(vbox);
 790
 791         gtk_widget_show_now(window);
 792
 793         if (move_bar_id == -1) {
 794                 move_bar_id = g_timeout_add(200, move_bar_cb, wait_progress);
 795                 move_bar = TRUE;
 796         }
 797
 798         GTK_EVENTS_FLUSH();
 799
 800         return window;
 801 }
 802
 803 void label_window_destroy(GtkWidget *window)
 804 {
 805         move_bar = FALSE;
 806         g_source_remove(move_bar_id);
 807         move_bar_id = -1;
 808         GTK_EVENTS_FLUSH();
 809         gtk_widget_destroy(window);
 810 }
 811
 812 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 813                                         GCallback               callback,
 814                                   gpointer              data)
 815 {
 816         GList *cur_ac;
 817         GtkWidget *optmenu;
 818         GtkListStore *menu;
 819         GtkTreeIter iter;
 820         PrefsAccount *account;
 821         gchar *name;
 822
 823         cm_return_val_if_fail(ac_list != NULL, NULL);
 824
 825         optmenu = gtkut_sc_combobox_create(NULL, FALSE);
 826         menu = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(optmenu)));
 827
 828         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 829                 account = (PrefsAccount *) cur_ac->data;
 830                 if (account->name)
 831                         name = g_strdup_printf("%s: %s <%s>",
 832                                                account->account_name,
 833                                                account->name,
 834                                                account->address);
 835                 else
 836                         name = g_strdup_printf("%s: %s",
 837                                                account->account_name,
 838                                                account->address);
 839                 COMBOBOX_ADD_ESCAPED(menu, name, account->account_id);
 840                 g_free(name);
 841         }
 842         gtk_combo_box_set_active(GTK_COMBO_BOX(optmenu), 0);
 843
 844         if( callback != NULL )
 845                 g_signal_connect(G_OBJECT(optmenu), "changed", callback, data);
 846
 847         return optmenu;
 848 }
 849
 850 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 851 {
 852         GtkStyle *newstyle;
 853         GdkColor gdk_color;
 854
 855         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 856         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 857         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 858         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 859         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 860         gtk_widget_set_style(widget, newstyle);
 861 }
 862
 863 /*!
 864  *\brief        Tries to find a focused child using a lame strategy
 865  */
 866 GtkWidget *gtkut_get_focused_child(GtkContainer *parent)
 867 {
 868         GtkWidget *result = NULL;
 869         GList *child_list = NULL;
 870         GList *c;
 871
 872         cm_return_val_if_fail(parent, NULL);
 873
 874         /* Get children list and see which has the focus. */
 875         child_list = gtk_container_get_children(parent);
 876         if (!child_list)
 877                 return NULL;
 878
 879         for (c = child_list; c != NULL; c = g_list_next(c)) {
 880                 if (c->data && GTK_IS_WIDGET(c->data)) {
 881                         if (gtkut_widget_has_focus(GTK_WIDGET(c->data))) {
 882                                 result = GTK_WIDGET(c->data);
 883                                 break;
 884                         }
 885                 }
 886         }
 887
 888         /* See if the returned widget is a container itself; if it is,
 889          * see if one of its children is focused. If the focused
 890          * container has no focused child, it is itself a focusable
 891          * child, and has focus. */
 892         if (result && GTK_IS_CONTAINER(result)) {
 893                 GtkWidget *tmp =  gtkut_get_focused_child(GTK_CONTAINER(result));
 894
 895                 if (tmp)
 896                         result = tmp;
 897         } else {
 898                 /* Try the same for each container in the chain */
 899                 for (c = child_list; c != NULL && !result; c = g_list_next(c)) {
 900                         if (c->data && GTK_IS_WIDGET(c->data)
 901                         &&  GTK_IS_CONTAINER(c->data)) {
 902                                 result = gtkut_get_focused_child
 903                                         (GTK_CONTAINER(c->data));
 904                         }
 905                 }
 906
 907         }
 908
 909         g_list_free(child_list);
 910
 911         return result;
 912 }
 913
 914 /*!
 915  *\brief        Create a Browse (file) button based on GTK+ stock
 916  */
 917 GtkWidget *gtkut_get_browse_file_btn(const gchar *button_label)
 918 {
 919         GtkWidget *button;
 920
 921         button = gtk_button_new_with_mnemonic(button_label);
 922         gtk_button_set_image(GTK_BUTTON(button),
 923                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 924
 925         return button;
 926 }
 927
 928 /*!
 929  *\brief        Create a Browse (directory) button based on GTK+ stock
 930  */
 931 GtkWidget *gtkut_get_browse_directory_btn(const gchar *button_label)
 932 {
 933         GtkWidget *button;
 934
 935         button = gtk_button_new_with_mnemonic(button_label);
 936         gtk_button_set_image(GTK_BUTTON(button),
 937                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 938
 939         return button;
 940 }
 941
 942 GtkWidget *gtkut_get_replace_btn(const gchar *button_label)
 943 {
 944         GtkWidget *button;
 945
 946         button = gtk_button_new_with_mnemonic(button_label);
 947         gtk_button_set_image(GTK_BUTTON(button),
 948                 gtk_image_new_from_stock(GTK_STOCK_REFRESH, GTK_ICON_SIZE_BUTTON));
 949
 950         return button;
 951 }
 952
 953 /**
 954  * merge some part of code into one function : it creates a frame and add
 955  *      these into gtk box widget passed in param.
 956  * \param box gtk box where adding new created frame.
 957  * \param pframe pointer with which to assign the frame. If NULL, no pointer
 958  *      is assigned but the frame is anyway created and added to @box.
 959  * \param frame_label frame label of new created frame.
 960  */
 961 GtkWidget *gtkut_get_options_frame(GtkWidget *box, GtkWidget **pframe,
 962                 const gchar *frame_label)
 963 {
 964         GtkWidget *vbox;
 965         GtkWidget *frame;
 966
 967         frame = gtk_frame_new(frame_label);
 968         gtk_widget_show(frame);
 969         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 970         gtk_frame_set_label_align(GTK_FRAME(frame), 0.01, 0.5);
 971
 972         vbox = gtk_vbox_new (FALSE, 4);
 973         gtk_widget_show(vbox);
 974         gtk_container_add(GTK_CONTAINER (frame), vbox);
 975         gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
 976
 977         if (pframe != NULL)
 978                 *pframe = frame;
 979
 980         return vbox;
 981 }
 982
 983 #if HAVE_LIBCOMPFACE
 984 static gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
 985 {
 986         static gchar *bit_pattern[] = {
 987                 "....",
 988                 "...#",
 989                 "..#.",
 990                 "..##",
 991                 ".#..",
 992                 ".#.#",
 993                 ".##.",
 994                 ".###",
 995                 "#...",
 996                 "#..#",
 997                 "#.#.",
 998                 "#.##",
 999                 "##..",
1000                 "##.#",
1001                 "###.",
1002                 "####"
1003         };
1004
1005         static gchar *xface_header = "48 48 2 1";
1006         static gchar *xface_black  = "# c #000000";
1007         static gchar *xface_white  = ". c #ffffff";
1008
1009         gint i, line = 0;
1010         const guchar *p;
1011         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
1012
1013         p = xface;
1014
1015         strcpy(xpm[line++], xface_header);
1016         strcpy(xpm[line++], xface_black);
1017         strcpy(xpm[line++], xface_white);
1018
1019         for (i = 0; i < HEIGHT; i++) {
1020                 gint col;
1021
1022                 buf[0] = '\0';
1023
1024                 for (col = 0; col < 3; col++) {
1025                         gint figure;
1026
1027                         p += 2;  /* skip '0x' */
1028
1029                         for (figure = 0; figure < 4; figure++) {
1030                                 gint n = 0;
1031
1032                                 if ('0' <= *p && *p <= '9') {
1033                                         n = *p - '0';
1034                                 } else if ('a' <= *p && *p <= 'f') {
1035                                         n = *p - 'a' + 10;
1036                                 } else if ('A' <= *p && *p <= 'F') {
1037                                         n = *p - 'A' + 10;
1038                                 }
1039
1040                                 strcat(buf, bit_pattern[n]);
1041                                 p++;  /* skip ',' */
1042                         }
1043
1044                         p++;  /* skip '\n' */
1045                 }
1046
1047                 strcpy(xpm[line++], buf);
1048                 p++;
1049         }
1050
1051         return 0;
1052 }
1053 #endif
1054
1055 gboolean get_tag_range(GtkTextIter *iter,
1056                                        GtkTextTag *tag,
1057                                        GtkTextIter *start_iter,
1058                                        GtkTextIter *end_iter)
1059 {
1060         GtkTextIter _start_iter, _end_iter;
1061
1062         _end_iter = *iter;
1063         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1064                 debug_print("Can't find end");
1065                 return FALSE;
1066         }
1067
1068         _start_iter = _end_iter;
1069         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1070                 debug_print("Can't find start.");
1071                 return FALSE;
1072         }
1073
1074         *start_iter = _start_iter;
1075         *end_iter = _end_iter;
1076
1077         return TRUE;
1078 }
1079
1080 #if HAVE_LIBCOMPFACE
1081 GtkWidget *xface_get_from_header(const gchar *o_xface, GdkColor *background,
1082                                  GdkWindow *window)
1083 {
1084         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1085         static gboolean xpm_xface_init = TRUE;
1086         gchar xface[2048];
1087         strncpy(xface, o_xface, sizeof(xface));
1088
1089         if (!window) {
1090                 g_warning("no window\n");
1091                 return NULL;
1092         }
1093         if (uncompface(xface) < 0) {
1094                 g_warning("uncompface failed\n");
1095                 return NULL;
1096         }
1097
1098         if (xpm_xface_init) {
1099                 gint i;
1100
1101                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1102                         xpm_xface[i] = g_malloc(WIDTH + 1);
1103                         *xpm_xface[i] = '\0';
1104                 }
1105                 xpm_xface_init = FALSE;
1106         }
1107
1108         create_xpm_from_xface(xpm_xface, xface);
1109
1110         return gtk_image_new_from_pixbuf(
1111                 gdk_pixbuf_new_from_xpm_data((const char **)xpm_xface));
1112 }
1113 #endif
1114
1115 GtkWidget *face_get_from_header(const gchar *o_face)
1116 {
1117         gchar face[2048];
1118         gchar face_png[2048];
1119         gint pngsize;
1120         GdkPixbuf *pixbuf;
1121         GError *error = NULL;
1122         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
1123         GtkWidget *image;
1124
1125         if (o_face == NULL || strlen(o_face) == 0)
1126                 return NULL;
1127
1128         strncpy2(face, o_face, sizeof(face));
1129
1130         unfold_line(face); /* strip all whitespace and linebreaks */
1131         remove_space(face);
1132
1133         pngsize = base64_decode(face_png, face, strlen(face));
1134
1135         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
1136             !gdk_pixbuf_loader_close (loader, &error)) {
1137                 g_warning("loading face failed\n");
1138                 g_object_unref(loader);
1139                 return NULL;
1140         }
1141
1142         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
1143
1144         g_object_unref(loader);
1145
1146         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
1147                 g_object_unref(pixbuf);
1148                 g_warning("wrong_size");
1149                 return NULL;
1150         }
1151
1152         image = gtk_image_new_from_pixbuf(pixbuf);
1153         g_object_unref(pixbuf);
1154         return image;
1155 }
1156
1157 static GdkCursor *hand_cursor = NULL;
1158
1159 static void link_btn_enter(GtkButton *button, gpointer data)
1160 {
1161         GdkWindow *gdkwin;
1162         GtkWidget *window = (GtkWidget *)data;
1163
1164         gdkwin = gtk_widget_get_window(window);
1165
1166         if (!hand_cursor)
1167                 hand_cursor = gdk_cursor_new(GDK_HAND2);
1168         if (window && gdkwin)
1169                 gdk_window_set_cursor(gdkwin, hand_cursor);
1170
1171         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1172         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1173
1174 }
1175
1176 static void link_btn_leave(GtkButton *button, gpointer data)
1177 {
1178         GdkWindow *gdkwin;
1179         GtkWidget *window = (GtkWidget *)data;
1180
1181         gdkwin = gtk_widget_get_window(window);
1182
1183         if (window && gdkwin)
1184                 gdk_window_set_cursor(gdkwin, NULL);
1185
1186         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1187         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1188 }
1189
1190 static void link_btn_pressed(GtkButton *button, gpointer data)
1191 {
1192         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1193         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1194 }
1195
1196 static void link_btn_released(GtkButton *button, gpointer data)
1197 {
1198         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1199         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1200 }
1201
1202 static void link_btn_clicked(GtkButton *button, gpointer data)
1203 {
1204         gchar *url = (gchar *)data;
1205         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1206         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1207         open_uri(url, prefs_common_get_uri_cmd());
1208 }
1209
1210 static void link_btn_unrealize(GtkButton *button, gpointer data)
1211 {
1212         gchar *url = (gchar *)data;
1213         g_signal_handlers_disconnect_by_func(G_OBJECT(button),
1214                          G_CALLBACK(link_btn_clicked), url);
1215         g_free(url);
1216 }
1217
1218 GtkWidget *gtkut_get_link_btn(GtkWidget *window, const gchar *url, const gchar *label)
1219 {
1220         GtkWidget *btn;
1221         GtkWidget *btn_label;
1222 #if !GTK_CHECK_VERSION(3, 0, 0)
1223         GdkColormap *cmap;
1224         gboolean success[2];
1225 #endif
1226         GdkColor uri_color[2] = {{0, 0, 0, 0xffff}, {0, 0xffff, 0, 0}};
1227         gchar *local_url = NULL;
1228         if (!url)
1229                 return NULL;
1230
1231         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1232                                                &uri_color[0]);
1233         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1234                                                &uri_color[1]);
1235
1236         btn = gtk_button_new_with_label(label?label:url);
1237         gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
1238         btn_label = gtk_bin_get_child(GTK_BIN((btn)));
1239 #if !GTK_CHECK_VERSION(3, 0, 0)
1240         cmap = gdk_drawable_get_colormap(gtk_widget_get_window(window));
1241         gdk_colormap_alloc_colors(cmap, uri_color, 2, FALSE, TRUE, success);
1242         if (success[0] == TRUE && success[1] == TRUE) {
1243 #endif
1244                 GtkStyle *style;
1245                 gtk_widget_ensure_style(btn_label);
1246                 style = gtk_style_copy
1247                         (gtk_widget_get_style(btn_label));
1248                 style->fg[GTK_STATE_NORMAL]   = uri_color[0];
1249                 style->fg[GTK_STATE_ACTIVE]   = uri_color[1];
1250                 style->fg[GTK_STATE_PRELIGHT] = uri_color[0];
1251                 gtk_widget_set_style(btn_label, style);
1252 #if !GTK_CHECK_VERSION(3, 0, 0)
1253         } else
1254                 g_warning("about_create(): color allocation failed.\n");
1255 #endif
1256
1257         g_signal_connect(G_OBJECT(btn), "enter",
1258                          G_CALLBACK(link_btn_enter), window);
1259         g_signal_connect(G_OBJECT(btn), "leave",
1260                          G_CALLBACK(link_btn_leave), window);
1261         g_signal_connect(G_OBJECT(btn), "pressed",
1262                          G_CALLBACK(link_btn_pressed), window);
1263         g_signal_connect(G_OBJECT(btn), "released",
1264                          G_CALLBACK(link_btn_released), window);
1265
1266         local_url = g_strdup(url);
1267         g_signal_connect(G_OBJECT(btn), "clicked",
1268                          G_CALLBACK(link_btn_clicked), local_url);
1269         g_signal_connect(G_OBJECT(btn), "unrealize",
1270                          G_CALLBACK(link_btn_unrealize), local_url);
1271         return btn;
1272 }
1273
1274 static gboolean _combobox_separator_func(GtkTreeModel *model,
1275                 GtkTreeIter *iter, gpointer data)
1276 {
1277         gchar *txt = NULL;
1278
1279         cm_return_val_if_fail(model != NULL, FALSE);
1280
1281         gtk_tree_model_get(model, iter, COMBOBOX_TEXT, &txt, -1);
1282
1283         if( txt == NULL )
1284                 return TRUE;
1285         return FALSE;
1286 }
1287
1288 GtkWidget *gtkut_sc_combobox_create(GtkWidget *eventbox, gboolean focus_on_click)
1289 {
1290         GtkWidget *combobox;
1291         GtkListStore *menu;
1292         GtkCellRenderer *rend;
1293
1294         menu = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_BOOLEAN);
1295
1296         combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(menu));
1297
1298         rend = gtk_cell_renderer_text_new();
1299         gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), rend, TRUE);
1300         gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combobox), rend,
1301                         "markup", COMBOBOX_TEXT,
1302                         "sensitive", COMBOBOX_SENS,
1303                         NULL);
1304
1305         if( eventbox != NULL )
1306                 gtk_container_add(GTK_CONTAINER(eventbox), combobox);
1307         gtk_combo_box_set_focus_on_click(GTK_COMBO_BOX(combobox), focus_on_click);
1308
1309         gtk_combo_box_set_row_separator_func(GTK_COMBO_BOX(combobox),
1310                         (GtkTreeViewRowSeparatorFunc)_combobox_separator_func, NULL, NULL);
1311
1312         return combobox;
1313 }
1314
1315 static void gtkutils_smooth_scroll_do(GtkWidget *widget, GtkAdjustment *vadj,
1316                                       gfloat old_value, gfloat last_value,
1317                                       gint step)
1318 {
1319         gint change_value;
1320         gboolean up;
1321         gint i;
1322
1323         if (old_value < last_value) {
1324                 change_value = last_value - old_value;
1325                 up = FALSE;
1326         } else {
1327                 change_value = old_value - last_value;
1328                 up = TRUE;
1329         }
1330
1331         for (i = step; i <= change_value; i += step) {
1332                 gtk_adjustment_set_value(vadj, old_value + (up ? -i : i));
1333                 g_signal_emit_by_name(G_OBJECT(vadj),
1334                                       "value_changed", 0);
1335         }
1336
1337         gtk_adjustment_set_value(vadj, last_value);
1338         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1339
1340         gtk_widget_queue_draw(widget);
1341 }
1342
1343 static gboolean gtkutils_smooth_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1344 {
1345         gfloat upper;
1346         gfloat page_incr;
1347         gfloat old_value;
1348         gfloat last_value;
1349
1350         page_incr = gtk_adjustment_get_page_increment(vadj);
1351         if (prefs_common.scroll_halfpage)
1352                 page_incr /= 2;
1353
1354         old_value = gtk_adjustment_get_value(vadj);
1355         if (!up) {
1356                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1357                 if (old_value < upper) {
1358                         last_value = old_value + page_incr;
1359                         last_value = MIN(last_value, upper);
1360
1361                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1362                                                   last_value,
1363                                                   prefs_common.scroll_step);
1364                 } else
1365                         return FALSE;
1366         } else {
1367                 if (old_value > 0.0) {
1368                         last_value = old_value - page_incr;
1369                         last_value = MAX(last_value, 0.0);
1370
1371                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1372                                                   last_value,
1373                                                   prefs_common.scroll_step);
1374                 } else
1375                         return FALSE;
1376         }
1377
1378         return TRUE;
1379 }
1380
1381 gboolean gtkutils_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1382 {
1383         gfloat upper;
1384         gfloat page_incr;
1385         gfloat old_value;
1386
1387         if (prefs_common.enable_smooth_scroll)
1388                 return gtkutils_smooth_scroll_page(widget, vadj, up);
1389
1390         page_incr = gtk_adjustment_get_page_increment(vadj);
1391         if (prefs_common.scroll_halfpage)
1392                 page_incr /= 2;
1393
1394         old_value = gtk_adjustment_get_value(vadj);
1395         if (!up) {
1396                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1397                 if (old_value < upper) {
1398                         old_value += page_incr;
1399                         old_value = MIN(old_value, upper);
1400                         gtk_adjustment_set_value(vadj, old_value);
1401                         g_signal_emit_by_name(G_OBJECT(vadj),
1402                                               "value_changed", 0);
1403                 } else
1404                         return FALSE;
1405         } else {
1406                 if (old_value > 0.0) {
1407                         old_value -= page_incr;
1408                         old_value = MAX(old_value, 0.0);
1409                         gtk_adjustment_set_value(vadj, old_value);
1410                         g_signal_emit_by_name(G_OBJECT(vadj),
1411                                               "value_changed", 0);
1412                 } else
1413                         return FALSE;
1414         }
1415         return TRUE;
1416 }
1417
1418 static void gtkutils_smooth_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1419 {
1420         gfloat upper;
1421         gfloat old_value;
1422         gfloat last_value;
1423
1424         old_value = gtk_adjustment_get_value(vadj);
1425         if (!up) {
1426                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1427                 if (old_value < upper) {
1428                         last_value = old_value + gtk_adjustment_get_step_increment(vadj);
1429                         last_value = MIN(last_value, upper);
1430
1431                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1432                                                   last_value,
1433                                                   prefs_common.scroll_step);
1434                 }
1435         } else {
1436                 if (old_value > 0.0) {
1437                         last_value = old_value - gtk_adjustment_get_step_increment(vadj);
1438                         last_value = MAX(last_value, 0.0);
1439
1440                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1441                                                   last_value,
1442                                                   prefs_common.scroll_step);
1443                 }
1444         }
1445 }
1446
1447 void gtkutils_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1448 {
1449         gfloat upper;
1450         gfloat old_value;
1451
1452         if (prefs_common.enable_smooth_scroll) {
1453                 gtkutils_smooth_scroll_one_line(widget, vadj, up);
1454                 return;
1455         }
1456
1457         old_value = gtk_adjustment_get_value(vadj);
1458         if (!up) {
1459                 upper = gtk_adjustment_get_upper(vadj) - gtk_adjustment_get_page_size(vadj);
1460                 if (old_value < upper) {
1461                         old_value += gtk_adjustment_get_step_increment(vadj);
1462                         old_value = MIN(old_value, upper);
1463                         gtk_adjustment_set_value(vadj, old_value);
1464                         g_signal_emit_by_name(G_OBJECT(vadj),
1465                                               "value_changed", 0);
1466                 }
1467         } else {
1468                 if (old_value > 0.0) {
1469                         old_value -= gtk_adjustment_get_step_increment(vadj);
1470                         old_value = MAX(old_value, 0.0);
1471                         gtk_adjustment_set_value(vadj, old_value);
1472                         g_signal_emit_by_name(G_OBJECT(vadj),
1473                                               "value_changed", 0);
1474                 }
1475         }
1476 }
1477
1478 gboolean gtkut_tree_model_text_iter_prev(GtkTreeModel *model,
1479                                  GtkTreeIter *iter,
1480                                  const gchar* text)
1481 /* do the same as gtk_tree_model_iter_next, but _prev instead.
1482    to use with widgets with one text column (gtk_combo_box_new_text()
1483    and with GtkComboBoxEntry's for instance),
1484 */
1485 {
1486         GtkTreeIter cur_iter;
1487         gchar *cur_value;
1488         gboolean valid;
1489         gint count;
1490
1491         cm_return_val_if_fail(model != NULL, FALSE);
1492         cm_return_val_if_fail(iter != NULL, FALSE);
1493
1494         if (text == NULL || *text == '\0')
1495                 return FALSE;
1496
1497         valid = gtk_tree_model_get_iter_first(model, &cur_iter);
1498         count = 0;
1499         while (valid) {
1500                 gtk_tree_model_get(model, &cur_iter, 0, &cur_value, -1);
1501
1502                 if (strcmp(text, cur_value) == 0) {
1503                         if (count <= 0)
1504                                 return FALSE;
1505
1506                         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1507                 }
1508
1509                 valid = gtk_tree_model_iter_next(model, &cur_iter);
1510                 count++;
1511         }
1512         return FALSE;
1513 }
1514
1515 gboolean gtkut_tree_model_get_iter_last(GtkTreeModel *model,
1516                                  GtkTreeIter *iter)
1517 /* do the same as gtk_tree_model_get_iter_first, but _last instead.
1518 */
1519 {
1520         gint count;
1521
1522         cm_return_val_if_fail(model != NULL, FALSE);
1523         cm_return_val_if_fail(iter != NULL, FALSE);
1524
1525         count = gtk_tree_model_iter_n_children(model, NULL);
1526
1527         if (count <= 0)
1528                 return FALSE;
1529
1530         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1531 }
1532
1533 GtkWidget *gtkut_window_new             (GtkWindowType   type,
1534                                          const gchar    *class)
1535 {
1536 #ifndef MAEMO
1537         GtkWidget *window = gtk_window_new(type);
1538 #else
1539         GtkWidget *window = hildon_window_new();
1540         hildon_program_add_window(hildon_program, HILDON_WINDOW(window));
1541 #endif
1542         gtk_window_set_role(GTK_WINDOW(window), class);
1543         return window;
1544 }
1545
1546 static gboolean gtkut_tree_iter_comp(GtkTreeModel *model,
1547                                      GtkTreeIter *iter1,
1548                                      GtkTreeIter *iter2)
1549 {
1550         GtkTreePath *path1 = gtk_tree_model_get_path(model, iter1);
1551         GtkTreePath *path2 = gtk_tree_model_get_path(model, iter2);
1552         gboolean result;
1553
1554         result = gtk_tree_path_compare(path1, path2) == 0;
1555
1556         gtk_tree_path_free(path1);
1557         gtk_tree_path_free(path2);
1558
1559         return result;
1560 }
1561
1562 /*!
1563  *\brief        Get selected row number.
1564  */
1565 gint gtkut_list_view_get_selected_row(GtkWidget *list_view)
1566 {
1567         GtkTreeView *view = GTK_TREE_VIEW(list_view);
1568         GtkTreeModel *model = gtk_tree_view_get_model(view);
1569         int n_rows = gtk_tree_model_iter_n_children(model, NULL);
1570         GtkTreeSelection *selection;
1571         GtkTreeIter iter;
1572         int row;
1573
1574         if (n_rows == 0)
1575                 return -1;
1576
1577         selection = gtk_tree_view_get_selection(view);
1578         if (!gtk_tree_selection_get_selected(selection, &model, &iter))
1579                 return -1;
1580
1581         /* get all iterators and compare them... */
1582         for (row = 0; row < n_rows; row++) {
1583                 GtkTreeIter itern;
1584
1585                 gtk_tree_model_iter_nth_child(model, &itern, NULL, row);
1586                 if (gtkut_tree_iter_comp(model, &iter, &itern))
1587                         return row;
1588         }
1589
1590         return -1;
1591 }
1592
1593 /*!
1594  *\brief        Select a row by its number.
1595  */
1596 gboolean gtkut_list_view_select_row(GtkWidget *list, gint row)
1597 {
1598         GtkTreeView *list_view = GTK_TREE_VIEW(list);
1599         GtkTreeSelection *selection = gtk_tree_view_get_selection(list_view);
1600         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
1601         GtkTreeIter iter;
1602         GtkTreePath *path;
1603
1604         if (!gtk_tree_model_iter_nth_child(model, &iter, NULL, row))
1605                 return FALSE;
1606
1607         gtk_tree_selection_select_iter(selection, &iter);
1608
1609         path = gtk_tree_model_get_path(model, &iter);
1610         gtk_tree_view_set_cursor(list_view, path, NULL, FALSE);
1611         gtk_tree_path_free(path);
1612
1613         return TRUE;
1614 }
1615
1616 static GtkUIManager *gui_manager = NULL;
1617
1618 GtkUIManager *gtkut_create_ui_manager(void)
1619 {
1620         cm_return_val_if_fail(gui_manager == NULL, gui_manager);
1621         return (gui_manager = gtk_ui_manager_new());
1622 }
1623
1624 GtkUIManager *gtkut_ui_manager(void)
1625 {
1626         return gui_manager;
1627 }
1628
1629 typedef struct _ClawsIOClosure ClawsIOClosure;
1630
1631 struct _ClawsIOClosure
1632 {
1633   ClawsIOFunc function;
1634   GIOCondition condition;
1635   GDestroyNotify notify;
1636   gpointer data;
1637 };
1638
1639 static gboolean
1640 claws_io_invoke (GIOChannel   *source,
1641                  GIOCondition  condition,
1642                  gpointer      data)
1643 {
1644   ClawsIOClosure *closure = data;
1645
1646   if (closure->condition & condition)
1647     closure->function (closure->data, g_io_channel_unix_get_fd (source),
1648                        condition);
1649
1650   return TRUE;
1651 }
1652
1653 static void
1654 claws_io_destroy (gpointer data)
1655 {
1656   ClawsIOClosure *closure = data;
1657
1658   if (closure->notify)
1659     closure->notify (closure->data);
1660
1661   g_free (closure);
1662 }
1663
1664 gint
1665 claws_input_add    (gint              source,
1666                     GIOCondition      condition,
1667                     ClawsIOFunc       function,
1668                     gpointer          data,
1669                     gboolean          is_sock)
1670 {
1671   guint result;
1672   ClawsIOClosure *closure = g_new (ClawsIOClosure, 1);
1673   GIOChannel *channel;
1674
1675   closure->function = function;
1676   closure->condition = condition;
1677   closure->notify = NULL;
1678   closure->data = data;
1679
1680 #ifndef G_OS_WIN32
1681   channel = g_io_channel_unix_new (source);
1682 #else
1683   if (is_sock)
1684     channel = g_io_channel_win32_new_socket(source);
1685   else
1686     channel = g_io_channel_win32_new_fd(source);
1687 #endif
1688   result = g_io_add_watch_full (channel, G_PRIORITY_DEFAULT, condition,
1689                                 claws_io_invoke,
1690                                 closure, claws_io_destroy);
1691   g_io_channel_unref (channel);
1692
1693   return result;
1694 }
1695
1696 gboolean gtkut_widget_has_focus(GtkWidget *widget)
1697 {
1698 #if GTK_CHECK_VERSION(2,18,0)
1699         return gtk_widget_has_focus(widget);
1700 #else
1701         return GTK_WIDGET_HAS_FOCUS(widget);
1702 #endif
1703 }
1704
1705 gboolean gtkut_widget_get_can_focus(GtkWidget *widget)
1706 {
1707 #if GTK_CHECK_VERSION(2,18,0)
1708         return gtk_widget_get_can_focus(widget);
1709 #else
1710         return GTK_WIDGET_CAN_FOCUS(widget);
1711 #endif
1712 }
1713
1714 gboolean gtkut_widget_has_grab(GtkWidget *widget)
1715 {
1716 #if GTK_CHECK_VERSION(2,18,0)
1717         return gtk_widget_has_grab(widget);
1718 #else
1719         return GTK_WIDGET_HAS_GRAB(widget);
1720 #endif
1721 }
1722
1723 gboolean gtkut_widget_get_visible(GtkWidget *widget)
1724 {
1725 #if GTK_CHECK_VERSION(2,18,0)
1726         return gtk_widget_get_visible(widget);
1727 #else
1728         return GTK_WIDGET_VISIBLE(widget);
1729 #endif
1730 }
1731
1732 gboolean gtkut_widget_get_realized(GtkWidget *widget)
1733 {
1734 #if GTK_CHECK_VERSION(2,19,0)
1735         return gtk_widget_get_realized(widget);
1736 #else
1737         return GTK_WIDGET_REALIZED(widget);
1738 #endif
1739 }
1740
1741 gboolean gtkut_widget_is_sensitive(GtkWidget *widget)
1742 {
1743 #if GTK_CHECK_VERSION(2,18,0)
1744         return gtk_widget_is_sensitive(widget);
1745 #else
1746         return GTK_WIDGET_IS_SENSITIVE(widget);
1747 #endif
1748 }
1749
1750 gboolean gtkut_widget_get_sensitive(GtkWidget *widget)
1751 {
1752 #if GTK_CHECK_VERSION(2,18,0)
1753         return gtk_widget_get_sensitive(widget);
1754 #else
1755         return GTK_WIDGET_SENSITIVE(widget);
1756 #endif
1757 }
1758
1759 gboolean gtkut_widget_is_drawable(GtkWidget *widget)
1760 {
1761 #if GTK_CHECK_VERSION(2,18,0)
1762         return gtk_widget_is_drawable(widget);
1763 #else
1764         return GTK_WIDGET_DRAWABLE(widget);
1765 #endif
1766 }
1767
1768 GtkStateType gtkut_widget_get_state(GtkWidget *widget)
1769 {
1770 #if GTK_CHECK_VERSION(2,18,0)
1771         return gtk_widget_get_state(widget);
1772 #else
1773         return GTK_WIDGET_STATE(widget);
1774 #endif
1775 }
1776
1777 gboolean gtkut_widget_get_mapped(GtkWidget *widget)
1778 {
1779 #if GTK_CHECK_VERSION(2,19,0)
1780         return gtk_widget_get_mapped(widget);
1781 #else
1782         return GTK_WIDGET_MAPPED(widget);
1783 #endif
1784 }
1785
1786 gboolean gtkut_widget_get_has_window(GtkWidget *widget)
1787 {
1788 #if GTK_CHECK_VERSION(2,18,0)
1789         return gtk_widget_get_has_window(widget);
1790 #else
1791         return GTK_WIDGET_NO_WINDOW(widget);
1792 #endif
1793 }
1794
1795 gboolean gtkut_widget_get_app_paintable(GtkWidget *widget)
1796 {
1797 #if GTK_CHECK_VERSION(2,18,0)
1798         return gtk_widget_get_app_paintable(widget);
1799 #else
1800         return GTK_WIDGET_APP_PAINTABLE(widget);
1801 #endif
1802 }
1803
1804 void gtkut_widget_set_mapped(GtkWidget *widget, gboolean mapped)
1805 {
1806 #if GTK_CHECK_VERSION(2,20,0)
1807         gtk_widget_set_mapped(widget, mapped);
1808 #else
1809         if (mapped)
1810                 GTK_WIDGET_SET_FLAGS(widget, GTK_MAPPED);
1811         else
1812                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_MAPPED);
1813 #endif
1814 }
1815
1816 void gtkut_widget_set_realized(GtkWidget *widget, gboolean realized)
1817 {
1818 #if GTK_CHECK_VERSION(2,20,0)
1819         gtk_widget_set_realized(widget, realized);
1820 #else
1821         if (realized)
1822                 GTK_WIDGET_SET_FLAGS(widget, GTK_REALIZED);
1823         else
1824                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_REALIZED);
1825 #endif
1826 }
1827
1828 void gtkut_widget_set_can_default(GtkWidget *widget, gboolean can_default)
1829 {
1830 #if GTK_CHECK_VERSION(2,20,0)
1831         gtk_widget_set_can_default(widget, can_default);
1832 #else
1833         if (can_default)
1834                 GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_DEFAULT);
1835         else
1836                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_DEFAULT);
1837 #endif
1838 }
1839
1840 void gtkut_widget_set_receives_default(GtkWidget *widget, gboolean receives_default)
1841 {
1842 #if GTK_CHECK_VERSION(2,20,0)
1843         gtk_widget_set_receives_default(widget, receives_default);
1844 #else
1845         if (receives_default)
1846                 GTK_WIDGET_SET_FLAGS(widget, GTK_RECEIVES_DEFAULT);
1847         else
1848                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_RECEIVES_DEFAULT);
1849 #endif
1850 }
1851
1852 void gtkut_widget_set_can_focus(GtkWidget *widget, gboolean can_focus)
1853 {
1854 #if GTK_CHECK_VERSION(2,20,0)
1855         gtk_widget_set_can_focus(widget, can_focus);
1856 #else
1857         if (can_focus)
1858                 GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS);
1859         else
1860                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_FOCUS);
1861 #endif
1862 }
1863
1864 void gtkut_widget_set_has_window(GtkWidget *widget, gboolean has_window)
1865 {
1866 #if GTK_CHECK_VERSION(2,20,0)
1867         gtk_widget_set_has_window(widget, has_window);
1868 #else
1869         if (has_window) /* Inverted logic there */
1870                 GTK_WIDGET_UNSET_FLAGS(widget, GTK_NO_WINDOW);
1871         else
1872                 GTK_WIDGET_SET_FLAGS(widget, GTK_NO_WINDOW);
1873 #endif
1874 }
1875
1876 /**
1877  * Load a pixbuf fitting inside the specified size. EXIF orientation is
1878  * respected if available.
1879  *
1880  * @param[in] filename          the file to load
1881  * @param[in] box_width         the max width (-1 for no resize)
1882  * @param[in] box_height        the max height (-1 for no resize)
1883  * @param[out] error            the possible load error
1884  *
1885  * @return a GdkPixbuf
1886  */
1887 GdkPixbuf *claws_load_pixbuf_fitting(GdkPixbuf *src_pixbuf, int box_width,
1888                                      int box_height)
1889 {
1890         gint w, h, orientation, angle;
1891         gint avail_width, avail_height;
1892         gboolean flip_horiz, flip_vert;
1893         const gchar *orient_str;
1894         GdkPixbuf *pixbuf, *t_pixbuf;
1895
1896         pixbuf = src_pixbuf;
1897
1898         if (pixbuf == NULL)
1899                 return NULL;
1900
1901         angle = 0;
1902         flip_horiz = flip_vert = FALSE;
1903
1904         /* EXIF orientation */
1905         orient_str = gdk_pixbuf_get_option(pixbuf, "orientation");
1906         if (orient_str != NULL && *orient_str != '\0') {
1907                 orientation = atoi(orient_str);
1908                 switch(orientation) {
1909                         /* See EXIF standard for different values */
1910                         case 1: break;
1911                         case 2: flip_horiz = 1;
1912                                 break;
1913                         case 3: angle = 180;
1914                                 break;
1915                         case 4: flip_vert = 1;
1916                                 break;
1917                         case 5: angle = 90;
1918                                 flip_horiz = 1;
1919                                 break;
1920                         case 6: angle = 270;
1921                                 break;
1922                         case 7: angle = 90;
1923                                 flip_vert = 1;
1924                                 break;
1925                         case 8: angle = 90;
1926                                 break;
1927                 }
1928         }
1929
1930         w = gdk_pixbuf_get_width(pixbuf);
1931         h = gdk_pixbuf_get_height(pixbuf);
1932
1933         if (angle == 90 || angle == 270) {
1934                 avail_height = box_width;
1935                 avail_width = box_height;
1936         } else {
1937                 avail_width = box_width;
1938                 avail_height = box_height;
1939         }
1940
1941         /* Scale first */
1942         if (box_width != -1 && box_height != -1 && avail_width - 100 > 0) {
1943                 if (w > avail_width) {
1944                         h = (avail_width * h) / w;
1945                         w = avail_width;
1946                 }
1947                 if (h > avail_height) {
1948                         w = (avail_height * w) / h;
1949                         h = avail_height;
1950                 }
1951                 t_pixbuf = gdk_pixbuf_scale_simple(pixbuf,
1952                         w, h, GDK_INTERP_BILINEAR);
1953                 g_object_unref(pixbuf);
1954                 pixbuf = t_pixbuf;
1955         }
1956
1957         /* Rotate if needed */
1958         if (angle != 0) {
1959                 t_pixbuf = gdk_pixbuf_rotate_simple(pixbuf, angle);
1960                 g_object_unref(pixbuf);
1961                 pixbuf = t_pixbuf;
1962         }
1963
1964         /* Flip horizontally if needed */
1965         if (flip_horiz) {
1966                 t_pixbuf = gdk_pixbuf_flip(pixbuf, TRUE);
1967                 g_object_unref(pixbuf);
1968                 pixbuf = t_pixbuf;
1969         }
1970
1971         /* Flip vertically if needed */
1972         if (flip_vert) {
1973                 t_pixbuf = gdk_pixbuf_flip(pixbuf, FALSE);
1974                 g_object_unref(pixbuf);
1975                 pixbuf = t_pixbuf;
1976         }
1977
1978         return pixbuf;
1979 }