src/gtk/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include <glib.h>
  25 #include <glib/gi18n.h>
  26 #include <gdk/gdkkeysyms.h>
  27 #include <gdk/gdk.h>
  28 #include <gtk/gtkwidget.h>
  29 #include <gtk/gtkhbbox.h>
  30 #include <gtk/gtkbutton.h>
  31 #include <gtk/gtkctree.h>
  32 #include <gtk/gtkcombo.h>
  33 #include <gtk/gtkbindings.h>
  34 #include <gtk/gtkitemfactory.h>
  35 #include <stdlib.h>
  36 #include <stdarg.h>
  37 #include <sys/stat.h>
  38
  39 #if HAVE_LIBCOMPFACE
  40 #  include <compface.h>
  41 #endif
  42
  43 #if HAVE_LIBCOMPFACE
  44 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  45 #endif
  46
  47 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
  48 #  include <wchar.h>
  49 #  include <wctype.h>
  50 #endif
  51
  52 #include "defs.h"
  53 #include "gtkutils.h"
  54 #include "utils.h"
  55 #include "gtksctree.h"
  56 #include "codeconv.h"
  57 #include "stock_pixmap.h"
  58 #include "menu.h"
  59 #include "prefs_account.h"
  60 #include "prefs_common.h"
  61 #include "manage_window.h"
  62 #include "base64.h"
  63 #include "manual.h"
  64
  65 gboolean gtkut_get_font_size(GtkWidget *widget,
  66                              gint *width, gint *height)
  67 {
  68         PangoLayout *layout;
  69         const gchar *str = "Abcdef";
  70
  71         g_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  72
  73         layout = gtk_widget_create_pango_layout(widget, str);
  74         g_return_val_if_fail(layout, FALSE);
  75         pango_layout_get_pixel_size(layout, width, height);
  76         if (width)
  77                 *width = *width / g_utf8_strlen(str, -1);
  78         g_object_unref(layout);
  79
  80         return TRUE;
  81 }
  82
  83 void gtkut_widget_set_small_font_size(GtkWidget *widget)
  84 {
  85         PangoFontDescription *font_desc;
  86         gint size;
  87
  88         g_return_if_fail(widget != NULL);
  89         g_return_if_fail(widget->style != NULL);
  90
  91         font_desc = pango_font_description_from_string(NORMAL_FONT);
  92         size = pango_font_description_get_size(font_desc);
  93         pango_font_description_set_size(font_desc, size * PANGO_SCALE_SMALL);
  94         gtk_widget_modify_font(widget, font_desc);
  95         pango_font_description_free(font_desc);
  96 }
  97
  98 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
  99 {
 100         g_return_if_fail(color != NULL);
 101
 102         color->pixel = 0L;
 103         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
 104         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
 105         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
 106 }
 107
 108 void gtkut_stock_button_add_help(GtkWidget *bbox, GtkWidget **help_btn)
 109 {
 110         g_return_if_fail(bbox != NULL);
 111
 112         *help_btn = gtk_button_new_from_stock(GTK_STOCK_HELP);
 113
 114         GTK_WIDGET_SET_FLAGS(*help_btn, GTK_CAN_DEFAULT);
 115         gtk_box_pack_end(GTK_BOX (bbox), *help_btn, TRUE, TRUE, 0);
 116         gtk_button_box_set_child_secondary(GTK_BUTTON_BOX (bbox),
 117                         *help_btn, TRUE);
 118         gtk_widget_set_sensitive(*help_btn,
 119                         manual_available(MANUAL_MANUAL_LOCAL));
 120         gtk_widget_show(*help_btn);
 121 }
 122
 123 void gtkut_stock_button_set_create_with_help(GtkWidget **bbox,
 124                 GtkWidget **help_button,
 125                 GtkWidget **button1, const gchar *label1,
 126                 GtkWidget **button2, const gchar *label2,
 127                 GtkWidget **button3, const gchar *label3)
 128 {
 129         g_return_if_fail(bbox != NULL);
 130         g_return_if_fail(button1 != NULL);
 131
 132         gtkut_stock_button_set_create(bbox, button1, label1,
 133                         button2, label2, button3, label3);
 134
 135         gtkut_stock_button_add_help(*bbox, help_button);
 136 }
 137
 138 void gtkut_stock_button_set_create(GtkWidget **bbox,
 139                                    GtkWidget **button1, const gchar *label1,
 140                                    GtkWidget **button2, const gchar *label2,
 141                                    GtkWidget **button3, const gchar *label3)
 142 {
 143         g_return_if_fail(bbox != NULL);
 144         g_return_if_fail(button1 != NULL);
 145
 146         *bbox = gtk_hbutton_box_new();
 147         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 148         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 149
 150         *button1 = gtk_button_new_from_stock(label1);
 151         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
 152         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 153         gtk_widget_show(*button1);
 154
 155         if (button2) {
 156                 *button2 = gtk_button_new_from_stock(label2);
 157                 GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
 158                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 159                 gtk_widget_show(*button2);
 160         }
 161
 162         if (button3) {
 163                 *button3 = gtk_button_new_from_stock(label3);
 164                 GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
 165                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 166                 gtk_widget_show(*button3);
 167         }
 168 }
 169
 170 void gtkut_stock_with_text_button_set_create(GtkWidget **bbox,
 171                                    GtkWidget **button1, const gchar *label1, const gchar *text1,
 172                                    GtkWidget **button2, const gchar *label2, const gchar *text2,
 173                                    GtkWidget **button3, const gchar *label3, const gchar *text3)
 174 {
 175         g_return_if_fail(bbox != NULL);
 176         g_return_if_fail(button1 != NULL);
 177
 178         *bbox = gtk_hbutton_box_new();
 179         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 180         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 181
 182         *button1 = gtk_button_new_with_mnemonic(text1);
 183         gtk_button_set_image(GTK_BUTTON(*button1),
 184                 gtk_image_new_from_stock(label1, GTK_ICON_SIZE_BUTTON));
 185         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
 186         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 187         gtk_widget_show(*button1);
 188
 189         if (button2) {
 190                 *button2 = gtk_button_new_with_mnemonic(text2);
 191         gtk_button_set_image(GTK_BUTTON(*button2),
 192                 gtk_image_new_from_stock(label2, GTK_ICON_SIZE_BUTTON));
 193                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 194                 gtk_widget_show(*button2);
 195         }
 196
 197         if (button3) {
 198                 *button3 = gtk_button_new_with_mnemonic(text3);
 199         gtk_button_set_image(GTK_BUTTON(*button3),
 200                 gtk_image_new_from_stock(label3, GTK_ICON_SIZE_BUTTON));
 201                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 202                 gtk_widget_show(*button3);
 203         }
 204 }
 205
 206 static void combo_button_size_request(GtkWidget *widget,
 207                                       GtkRequisition *requisition,
 208                                       gpointer data)
 209 {
 210         ComboButton *combo = (ComboButton *)data;
 211
 212         if (combo->arrow->allocation.height != requisition->height)
 213                 gtk_widget_set_size_request(combo->arrow,
 214                                             -1, requisition->height);
 215 }
 216
 217 static void combo_button_enter(GtkWidget *widget, gpointer data)
 218 {
 219         ComboButton *combo = (ComboButton *)data;
 220
 221         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_PRELIGHT) {
 222                 gtk_widget_set_state(combo->arrow, GTK_STATE_PRELIGHT);
 223                 gtk_widget_queue_draw(combo->arrow);
 224         }
 225         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_PRELIGHT) {
 226                 gtk_widget_set_state(combo->button, GTK_STATE_PRELIGHT);
 227                 gtk_widget_queue_draw(combo->button);
 228         }
 229 }
 230
 231 static void combo_button_leave(GtkWidget *widget, gpointer data)
 232 {
 233         ComboButton *combo = (ComboButton *)data;
 234
 235         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_NORMAL) {
 236                 gtk_widget_set_state(combo->arrow, GTK_STATE_NORMAL);
 237                 gtk_widget_queue_draw(combo->arrow);
 238         }
 239         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_NORMAL) {
 240                 gtk_widget_set_state(combo->button, GTK_STATE_NORMAL);
 241                 gtk_widget_queue_draw(combo->button);
 242         }
 243 }
 244
 245 static gint combo_button_arrow_pressed(GtkWidget *widget, GdkEventButton *event,
 246                                        gpointer data)
 247 {
 248         ComboButton *combo = (ComboButton *)data;
 249
 250         if (!event) return FALSE;
 251
 252         gtk_menu_popup(GTK_MENU(combo->menu), NULL, NULL,
 253                        menu_button_position, combo->button,
 254                        event->button, event->time);
 255
 256         return FALSE;
 257 }
 258
 259 static void combo_button_destroy(GtkWidget *widget, gpointer data)
 260 {
 261         ComboButton *combo = (ComboButton *)data;
 262
 263         gtk_object_destroy(GTK_OBJECT(combo->factory));
 264         g_free(combo);
 265 }
 266
 267 ComboButton *gtkut_combo_button_create(GtkWidget *button,
 268                                        GtkItemFactoryEntry *entries,
 269                                        gint n_entries, const gchar *path,
 270                                        gpointer data)
 271 {
 272         ComboButton *combo;
 273         GtkWidget *arrow;
 274
 275         combo = g_new0(ComboButton, 1);
 276
 277         combo->arrow = gtk_button_new();
 278         arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
 279         gtk_widget_set_size_request(arrow, 7, -1);
 280         gtk_container_add(GTK_CONTAINER(combo->arrow), arrow);
 281         GTK_WIDGET_UNSET_FLAGS(combo->arrow, GTK_CAN_FOCUS);
 282         gtk_widget_show_all(combo->arrow);
 283
 284         combo->button = button;
 285         combo->menu = menu_create_items(entries, n_entries, path,
 286                                         &combo->factory, data);
 287         combo->data = data;
 288
 289         g_signal_connect(G_OBJECT(combo->button), "size_request",
 290                          G_CALLBACK(combo_button_size_request), combo);
 291         g_signal_connect(G_OBJECT(combo->button), "enter",
 292                          G_CALLBACK(combo_button_enter), combo);
 293         g_signal_connect(G_OBJECT(combo->button), "leave",
 294                          G_CALLBACK(combo_button_leave), combo);
 295         g_signal_connect(G_OBJECT(combo->arrow), "enter",
 296                          G_CALLBACK(combo_button_enter), combo);
 297         g_signal_connect(G_OBJECT(combo->arrow), "leave",
 298                          G_CALLBACK(combo_button_leave), combo);
 299         g_signal_connect(G_OBJECT(combo->arrow), "button_press_event",
 300                          G_CALLBACK(combo_button_arrow_pressed), combo);
 301         g_signal_connect(G_OBJECT(combo->arrow), "destroy",
 302                          G_CALLBACK(combo_button_destroy), combo);
 303
 304         return combo;
 305 }
 306
 307 #define CELL_SPACING 1
 308 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 309                                     (((row) + 1) * CELL_SPACING) + \
 310                                     (clist)->voffset)
 311 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 312                                    ((clist)->row_height + CELL_SPACING))
 313
 314 void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node, gint _row)
 315 {
 316         GtkCList *clist = GTK_CLIST(ctree);
 317         gint row;
 318         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 319
 320         g_return_if_fail(ctree != NULL);
 321         g_return_if_fail(node != NULL);
 322
 323         row = (_row != -1 ? _row : g_list_position(clist->row_list, (GList *)node));
 324
 325         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 326         row_visibility = gtk_clist_row_is_visible(clist, row);
 327         prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
 328         next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
 329
 330         if (row_visibility == GTK_VISIBILITY_NONE) {
 331                 gtk_clist_moveto(clist, row, -1, 0.5, 0);
 332                 return;
 333         }
 334         if (row_visibility == GTK_VISIBILITY_FULL &&
 335             prev_row_visibility == GTK_VISIBILITY_FULL &&
 336             next_row_visibility == GTK_VISIBILITY_FULL)
 337                 return;
 338         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 339             next_row_visibility != GTK_VISIBILITY_FULL)
 340                 return;
 341
 342         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 343                 gtk_clist_moveto(clist, row, -1, 0.2, 0);
 344                 return;
 345         }
 346         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 347                 gtk_clist_moveto(clist, row, -1, 0.8, 0);
 348                 return;
 349         }
 350 }
 351
 352 #undef CELL_SPACING
 353 #undef ROW_TOP_YPIXEL
 354 #undef ROW_FROM_YPIXEL
 355
 356 gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
 357 {
 358         g_return_val_if_fail(ctree != NULL, -1);
 359         g_return_val_if_fail(node != NULL, -1);
 360
 361         return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
 362 }
 363
 364 /* get the next node, including the invisible one */
 365 GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
 366 {
 367         GtkCTreeNode *parent;
 368
 369         if (!node) return NULL;
 370
 371         if (GTK_CTREE_ROW(node)->children)
 372                 return GTK_CTREE_ROW(node)->children;
 373
 374         if (GTK_CTREE_ROW(node)->sibling)
 375                 return GTK_CTREE_ROW(node)->sibling;
 376
 377         for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
 378              parent = GTK_CTREE_ROW(parent)->parent) {
 379                 if (GTK_CTREE_ROW(parent)->sibling)
 380                         return GTK_CTREE_ROW(parent)->sibling;
 381         }
 382
 383         return NULL;
 384 }
 385
 386 /* get the previous node, including the invisible one */
 387 GtkCTreeNode *gtkut_ctree_node_prev(GtkCTree *ctree, GtkCTreeNode *node)
 388 {
 389         GtkCTreeNode *prev;
 390         GtkCTreeNode *child;
 391
 392         if (!node) return NULL;
 393
 394         prev = GTK_CTREE_NODE_PREV(node);
 395         if (prev == GTK_CTREE_ROW(node)->parent)
 396                 return prev;
 397
 398         child = prev;
 399         while (GTK_CTREE_ROW(child)->children != NULL) {
 400                 child = GTK_CTREE_ROW(child)->children;
 401                 while (GTK_CTREE_ROW(child)->sibling != NULL)
 402                         child = GTK_CTREE_ROW(child)->sibling;
 403         }
 404
 405         return child;
 406 }
 407
 408 gboolean gtkut_ctree_node_is_selected(GtkCTree *ctree, GtkCTreeNode *node)
 409 {
 410         GtkCList *clist = GTK_CLIST(ctree);
 411         GList *cur;
 412
 413         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 414                 if (node == GTK_CTREE_NODE(cur->data))
 415                         return TRUE;
 416         }
 417
 418         return FALSE;
 419 }
 420
 421 GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
 422                                                 GtkCTreeNode *node)
 423 {
 424         if (!node) return NULL;
 425
 426         while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
 427                 if (!GTK_CTREE_ROW(node)->expanded)
 428                         return node;
 429         }
 430
 431         return NULL;
 432 }
 433
 434 void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
 435 {
 436         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 437                 gtk_ctree_expand(ctree, node);
 438 }
 439
 440 gboolean gtkut_ctree_node_is_parent(GtkCTreeNode *parent, GtkCTreeNode *node)
 441 {
 442         GtkCTreeNode *tmp;
 443         g_return_val_if_fail(node != NULL, FALSE);
 444         g_return_val_if_fail(parent != NULL, FALSE);
 445         tmp = node;
 446
 447         while (tmp) {
 448                 if(GTK_CTREE_ROW(tmp)->parent && GTK_CTREE_ROW(tmp)->parent == parent)
 449                         return TRUE;
 450                 tmp = GTK_CTREE_ROW(tmp)->parent;
 451         }
 452
 453         return FALSE;
 454 }
 455
 456 void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
 457 {
 458         if (node == NULL)
 459                 return;
 460         gtkut_clist_set_focus_row(GTK_CLIST(ctree),
 461                                   gtkut_ctree_get_nth_from_node(ctree, node));
 462 }
 463
 464 void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
 465 {
 466         clist->focus_row = row;
 467         GTKUT_CTREE_REFRESH(clist);
 468 }
 469
 470 void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
 471 {
 472         va_list args;
 473         gchar *s;
 474         GList *combo_items = NULL;
 475
 476         g_return_if_fail(str1 != NULL);
 477
 478         combo_items = g_list_append(combo_items, (gpointer)str1);
 479         va_start(args, str1);
 480         s = va_arg(args, gchar*);
 481         while (s) {
 482                 combo_items = g_list_append(combo_items, (gpointer)s);
 483                 s = va_arg(args, gchar*);
 484         }
 485         va_end(args);
 486
 487         gtk_combo_set_popdown_strings(combo, combo_items);
 488
 489         g_list_free(combo_items);
 490 }
 491
 492 gchar *gtkut_editable_get_selection(GtkEditable *editable)
 493 {
 494         guint start_pos, end_pos;
 495         gboolean found;
 496
 497         g_return_val_if_fail(GTK_IS_EDITABLE(editable), NULL);
 498
 499         found = gtk_editable_get_selection_bounds(editable,
 500                                                   &start_pos, &end_pos);
 501         if (found)
 502                 return gtk_editable_get_chars(editable, start_pos, end_pos);
 503         else
 504                 return NULL;
 505 }
 506
 507 void gtkut_editable_disable_im(GtkEditable *editable)
 508 {
 509         g_return_if_fail(editable != NULL);
 510
 511 #if USE_XIM
 512         if (editable->ic) {
 513                 gdk_ic_destroy(editable->ic);
 514                 editable->ic = NULL;
 515         }
 516         if (editable->ic_attr) {
 517                 gdk_ic_attr_destroy(editable->ic_attr);
 518                 editable->ic_attr = NULL;
 519         }
 520 #endif
 521 }
 522
 523 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 524 {
 525         gtk_container_remove(container, widget);
 526 }
 527
 528 gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf,
 529                                         const GtkTextIter *iter,
 530                                         gunichar *wcs, gint len,
 531                                         gboolean case_sens)
 532 {
 533         GtkTextIter start_iter, end_iter;
 534         gchar *utf8str, *p;
 535         gint match_count;
 536
 537         start_iter = end_iter = *iter;
 538         gtk_text_iter_forward_chars(&end_iter, len);
 539
 540         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter,
 541                                            FALSE);
 542         if (!utf8str) return FALSE;
 543
 544         if ((gint)g_utf8_strlen(utf8str, -1) != len) {
 545                 g_free(utf8str);
 546                 return FALSE;
 547         }
 548
 549         for (p = utf8str, match_count = 0;
 550              *p != '\0' && match_count < len;
 551              p = g_utf8_next_char(p), match_count++) {
 552                 gunichar wc;
 553
 554                 wc = g_utf8_get_char(p);
 555
 556                 if (case_sens) {
 557                         if (wc != wcs[match_count])
 558                                 break;
 559                 } else {
 560                         if (g_unichar_tolower(wc) !=
 561                             g_unichar_tolower(wcs[match_count]))
 562                                 break;
 563                 }
 564         }
 565
 566         g_free(utf8str);
 567
 568         if (match_count == len)
 569                 return TRUE;
 570         else
 571                 return FALSE;
 572 }
 573
 574 gboolean gtkut_text_buffer_find(GtkTextBuffer *buffer, const GtkTextIter *iter,
 575                                 const gchar *str, gboolean case_sens,
 576                                 GtkTextIter *match_pos)
 577 {
 578         gunichar *wcs;
 579         gint len;
 580         glong items_read = 0, items_written = 0;
 581         GError *error = NULL;
 582         GtkTextIter iter_;
 583         gboolean found = FALSE;
 584
 585         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 586         if (error != NULL) {
 587                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n",
 588                           error->message);
 589                 g_error_free(error);
 590         }
 591         if (!wcs || items_written <= 0) return FALSE;
 592         len = (gint)items_written;
 593
 594         iter_ = *iter;
 595         do {
 596                 found = gtkut_text_buffer_match_string
 597                         (buffer, &iter_, wcs, len, case_sens);
 598                 if (found) {
 599                         *match_pos = iter_;
 600                         break;
 601                 }
 602         } while (gtk_text_iter_forward_char(&iter_));
 603
 604         g_free(wcs);
 605
 606         return found;
 607 }
 608
 609 gboolean gtkut_text_buffer_find_backward(GtkTextBuffer *buffer,
 610                                          const GtkTextIter *iter,
 611                                          const gchar *str, gboolean case_sens,
 612                                          GtkTextIter *match_pos)
 613 {
 614         gunichar *wcs;
 615         gint len;
 616         glong items_read = 0, items_written = 0;
 617         GError *error = NULL;
 618         GtkTextIter iter_;
 619         gboolean found = FALSE;
 620
 621         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 622         if (error != NULL) {
 623                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n", error->message);
 624                 g_error_free(error);
 625         }
 626         if (!wcs || items_written <= 0) return FALSE;
 627         len = (gint)items_written;
 628
 629         iter_ = *iter;
 630         while (gtk_text_iter_backward_char(&iter_)) {
 631                 found = gtkut_text_buffer_match_string
 632                         (buffer, &iter_, wcs, len, case_sens);
 633                 if (found) {
 634                         *match_pos = iter_;
 635                         break;
 636                 }
 637         }
 638
 639         g_free(wcs);
 640
 641         return found;
 642 }
 643
 644 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 645 {
 646         GtkTextBuffer *buffer;
 647         GtkTextIter start_iter, end_iter;
 648         gboolean found;
 649
 650         g_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 651
 652         buffer = gtk_text_view_get_buffer(textview);
 653         found = gtk_text_buffer_get_selection_bounds(buffer,
 654                                                      &start_iter,
 655                                                      &end_iter);
 656         if (found)
 657                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 658                                                 FALSE);
 659         else
 660                 return NULL;
 661 }
 662
 663
 664 void gtkut_text_view_set_position(GtkTextView *text, gint pos)
 665 {
 666         GtkTextBuffer *buffer;
 667         GtkTextIter iter;
 668
 669         g_return_if_fail(text != NULL);
 670
 671         buffer = gtk_text_view_get_buffer(text);
 672
 673         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
 674         gtk_text_buffer_place_cursor(buffer, &iter);
 675         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
 676 }
 677
 678 gboolean gtkut_text_view_search_string(GtkTextView *text, const gchar *str,
 679                                         gboolean case_sens)
 680 {
 681         GtkTextBuffer *buffer;
 682         GtkTextIter iter, match_pos;
 683         GtkTextMark *mark;
 684         gint len;
 685
 686         g_return_val_if_fail(text != NULL, FALSE);
 687         g_return_val_if_fail(str != NULL, FALSE);
 688
 689         buffer = gtk_text_view_get_buffer(text);
 690
 691         len = g_utf8_strlen(str, -1);
 692         g_return_val_if_fail(len >= 0, FALSE);
 693
 694         mark = gtk_text_buffer_get_insert(buffer);
 695         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 696
 697         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
 698                                    &match_pos)) {
 699                 GtkTextIter end = match_pos;
 700
 701                 gtk_text_iter_forward_chars(&end, len);
 702                 /* place "insert" at the last character */
 703                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
 704                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 705                 return TRUE;
 706         }
 707
 708         return FALSE;
 709 }
 710
 711 gboolean gtkut_text_view_search_string_backward(GtkTextView *text, const gchar *str,
 712                                         gboolean case_sens)
 713 {
 714         GtkTextBuffer *buffer;
 715         GtkTextIter iter, match_pos;
 716         GtkTextMark *mark;
 717         gint len;
 718
 719         g_return_val_if_fail(text != NULL, FALSE);
 720         g_return_val_if_fail(str != NULL, FALSE);
 721
 722         buffer = gtk_text_view_get_buffer(text);
 723
 724         len = g_utf8_strlen(str, -1);
 725         g_return_val_if_fail(len >= 0, FALSE);
 726
 727         mark = gtk_text_buffer_get_insert(buffer);
 728         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 729
 730         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
 731                                             &match_pos)) {
 732                 GtkTextIter end = match_pos;
 733
 734                 gtk_text_iter_forward_chars(&end, len);
 735                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
 736                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 737                 return TRUE;
 738         }
 739
 740         return FALSE;
 741 }
 742
 743 void gtkut_window_popup(GtkWidget *window)
 744 {
 745         gint x, y, sx, sy, new_x, new_y;
 746
 747         g_return_if_fail(window != NULL);
 748         g_return_if_fail(window->window != NULL);
 749
 750         sx = gdk_screen_width();
 751         sy = gdk_screen_height();
 752
 753         gdk_window_get_origin(window->window, &x, &y);
 754         new_x = x % sx; if (new_x < 0) new_x = 0;
 755         new_y = y % sy; if (new_y < 0) new_y = 0;
 756         if (new_x != x || new_y != y)
 757                 gdk_window_move(window->window, new_x, new_y);
 758
 759         gtk_window_present(GTK_WINDOW(window));
 760 }
 761
 762 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 763 {
 764         gint x, y;
 765         gint sx, sy;
 766
 767         g_return_if_fail(widget != NULL);
 768         g_return_if_fail(widget->window != NULL);
 769
 770         sx = gdk_screen_width();
 771         sy = gdk_screen_height();
 772
 773         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 774         gdk_window_get_root_origin(widget->window, &x, &y);
 775
 776         x %= sx; if (x < 0) x = 0;
 777         y %= sy; if (y < 0) y = 0;
 778         *px = x;
 779         *py = y;
 780 }
 781
 782 void gtkut_widget_draw_now(GtkWidget *widget)
 783 {
 784         if (GTK_WIDGET_VISIBLE(widget) && GTK_WIDGET_DRAWABLE(widget))
 785                 gdk_window_process_updates(widget->window, FALSE);
 786 }
 787
 788 static void gtkut_clist_bindings_add(GtkWidget *clist)
 789 {
 790         GtkBindingSet *binding_set;
 791
 792         binding_set = gtk_binding_set_by_class
 793                 (GTK_CLIST_GET_CLASS(clist));
 794
 795         gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
 796                                      "scroll_vertical", 2,
 797                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 798                                      G_TYPE_FLOAT, 0.0);
 799         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 800                                      "scroll_vertical", 2,
 801                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 802                                      G_TYPE_FLOAT, 0.0);
 803 }
 804
 805 void gtkut_widget_init(void)
 806 {
 807         GtkWidget *clist;
 808
 809         clist = gtk_clist_new(1);
 810         gtk_object_ref(GTK_OBJECT(clist));
 811         gtk_object_sink(GTK_OBJECT(clist));
 812         gtkut_clist_bindings_add(clist);
 813         gtk_object_unref(GTK_OBJECT(clist));
 814
 815         clist = gtk_ctree_new(1, 0);
 816         gtk_object_ref(GTK_OBJECT(clist));
 817         gtk_object_sink(GTK_OBJECT(clist));
 818         gtkut_clist_bindings_add(clist);
 819         gtk_object_unref(GTK_OBJECT(clist));
 820
 821         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 822         gtk_object_ref(GTK_OBJECT(clist));
 823         gtk_object_sink(GTK_OBJECT(clist));
 824         gtkut_clist_bindings_add(clist);
 825         gtk_object_unref(GTK_OBJECT(clist));
 826 }
 827
 828 void gtkut_widget_set_app_icon(GtkWidget *widget)
 829 {
 830 #include "pixmaps/claws-mail.xpm"
 831         static GdkPixmap *sylpheedclawsxpm;
 832         static GdkBitmap *sylpheedclawsxpmmask;
 833
 834         g_return_if_fail(widget != NULL);
 835         g_return_if_fail(widget->window != NULL);
 836         if (!sylpheedclawsxpm) {
 837                 PIXMAP_CREATE(widget, sylpheedclawsxpm, sylpheedclawsxpmmask,
 838                               claws_mail_xpm);
 839         }
 840         gdk_window_set_icon(widget->window, NULL, sylpheedclawsxpm, sylpheedclawsxpmmask);
 841 }
 842
 843 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 844 {
 845         static GdkPixmap *xpm;
 846         static GdkBitmap *bmp;
 847
 848         g_return_if_fail(widget != NULL);
 849         g_return_if_fail(widget->window != NULL);
 850         if (!xpm) {
 851                 stock_pixmap_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &xpm, &bmp);
 852         }
 853         gdk_window_set_icon(widget->window, NULL, xpm, bmp);
 854 }
 855
 856 GtkWidget *label_window_create(const gchar *str)
 857 {
 858         GtkWidget *window;
 859         GtkWidget *label;
 860
 861         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 862         gtk_widget_set_size_request(window, 380, 60);
 863         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 864         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 865         gtk_window_set_title(GTK_WINDOW(window), str);
 866         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 867         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 868         manage_window_set_transient(GTK_WINDOW(window));
 869
 870         label = gtk_label_new(str);
 871         gtk_container_add(GTK_CONTAINER(window), label);
 872         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 873         gtk_widget_show(label);
 874
 875         gtk_widget_show_now(window);
 876
 877         GTK_EVENTS_FLUSH();
 878
 879         return window;
 880 }
 881
 882 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 883                                   GCallback              callback,
 884                                   gpointer               data)
 885 {
 886         GList *cur_ac;
 887         GtkWidget *menu;
 888
 889         g_return_val_if_fail(ac_list != NULL, NULL);
 890
 891         menu = gtk_menu_new();
 892
 893         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 894                 gchar *name;
 895                 GtkWidget *menuitem;
 896                 PrefsAccount *account;
 897
 898                 account = (PrefsAccount *) cur_ac->data;
 899                 if (account->name)
 900                         name = g_strdup_printf("%s: %s <%s>",
 901                                                account->account_name,
 902                                                account->name,
 903                                                account->address);
 904                 else
 905                         name = g_strdup_printf("%s: %s",
 906                                                account->account_name,
 907                                                account->address);
 908                 MENUITEM_ADD(menu, menuitem, name, account->account_id);
 909                 g_free(name);
 910                 if (callback != NULL)
 911                         g_signal_connect(G_OBJECT(menuitem), "activate",
 912                                          callback, data);
 913         }
 914         return menu;
 915 }
 916
 917 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 918 {
 919         GtkStyle *newstyle;
 920         GdkColor gdk_color;
 921
 922         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 923         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 924         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 925         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 926         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 927         gtk_widget_set_style(widget, newstyle);
 928 }
 929
 930 /*!
 931  *\brief        Tries to find a focused child using a lame strategy
 932  */
 933 GtkWidget *gtkut_get_focused_child(GtkContainer *parent)
 934 {
 935         GtkWidget *result = NULL;
 936         GList *child_list = NULL;
 937         GList *c;
 938
 939         g_return_val_if_fail(parent, NULL);
 940
 941         /* Get children list and see which has the focus. */
 942         child_list = gtk_container_get_children(parent);
 943         if (!child_list)
 944                 return NULL;
 945
 946         for (c = child_list; c != NULL; c = g_list_next(c)) {
 947                 if (c->data && GTK_IS_WIDGET(c->data)) {
 948                         if (GTK_WIDGET_HAS_FOCUS(GTK_WIDGET(c->data))) {
 949                                 result = GTK_WIDGET(c->data);
 950                                 break;
 951                         }
 952                 }
 953         }
 954
 955         /* See if the returned widget is a container itself; if it is,
 956          * see if one of its children is focused. If the focused
 957          * container has no focused child, it is itself a focusable
 958          * child, and has focus. */
 959         if (result && GTK_IS_CONTAINER(result)) {
 960                 GtkWidget *tmp =  gtkut_get_focused_child(GTK_CONTAINER(result));
 961
 962                 if (tmp)
 963                         result = tmp;
 964         } else {
 965                 /* Try the same for each container in the chain */
 966                 for (c = child_list; c != NULL && !result; c = g_list_next(c)) {
 967                         if (c->data && GTK_IS_WIDGET(c->data)
 968                         &&  GTK_IS_CONTAINER(c->data)) {
 969                                 result = gtkut_get_focused_child
 970                                         (GTK_CONTAINER(c->data));
 971                         }
 972                 }
 973
 974         }
 975
 976         g_list_free(child_list);
 977
 978         return result;
 979 }
 980
 981 /*!
 982  *\brief        Create a Browse (file) button based on GTK+ stock
 983  */
 984 GtkWidget *gtkut_get_browse_file_btn(const gchar *button_label)
 985 {
 986         GtkWidget *button;
 987
 988         button = gtk_button_new_with_mnemonic(button_label);
 989         gtk_button_set_image(GTK_BUTTON(button),
 990                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 991
 992         return button;
 993 }
 994
 995 /*!
 996  *\brief        Create a Browse (directory) button based on GTK+ stock
 997  */
 998 GtkWidget *gtkut_get_browse_directory_btn(const gchar *button_label)
 999 {
1000         GtkWidget *button;
1001
1002         button = gtk_button_new_with_mnemonic(button_label);
1003         gtk_button_set_image(GTK_BUTTON(button),
1004                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
1005
1006         return button;
1007 }
1008
1009 GtkWidget *gtkut_get_replace_btn(const gchar *button_label)
1010 {
1011         GtkWidget *button;
1012
1013         button = gtk_button_new_with_mnemonic(button_label);
1014         gtk_button_set_image(GTK_BUTTON(button),
1015                 gtk_image_new_from_stock(GTK_STOCK_REFRESH, GTK_ICON_SIZE_BUTTON));
1016
1017         return button;
1018 }
1019
1020 #if HAVE_LIBCOMPFACE
1021 gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
1022 {
1023         static gchar *bit_pattern[] = {
1024                 "....",
1025                 "...#",
1026                 "..#.",
1027                 "..##",
1028                 ".#..",
1029                 ".#.#",
1030                 ".##.",
1031                 ".###",
1032                 "#...",
1033                 "#..#",
1034                 "#.#.",
1035                 "#.##",
1036                 "##..",
1037                 "##.#",
1038                 "###.",
1039                 "####"
1040         };
1041
1042         static gchar *xface_header = "48 48 2 1";
1043         static gchar *xface_black  = "# c #000000";
1044         static gchar *xface_white  = ". c #ffffff";
1045
1046         gint i, line = 0;
1047         const guchar *p;
1048         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
1049
1050         p = xface;
1051
1052         strcpy(xpm[line++], xface_header);
1053         strcpy(xpm[line++], xface_black);
1054         strcpy(xpm[line++], xface_white);
1055
1056         for (i = 0; i < HEIGHT; i++) {
1057                 gint col;
1058
1059                 buf[0] = '\0';
1060
1061                 for (col = 0; col < 3; col++) {
1062                         gint figure;
1063
1064                         p += 2;  /* skip '0x' */
1065
1066                         for (figure = 0; figure < 4; figure++) {
1067                                 gint n = 0;
1068
1069                                 if ('0' <= *p && *p <= '9') {
1070                                         n = *p - '0';
1071                                 } else if ('a' <= *p && *p <= 'f') {
1072                                         n = *p - 'a' + 10;
1073                                 } else if ('A' <= *p && *p <= 'F') {
1074                                         n = *p - 'A' + 10;
1075                                 }
1076
1077                                 strcat(buf, bit_pattern[n]);
1078                                 p++;  /* skip ',' */
1079                         }
1080
1081                         p++;  /* skip '\n' */
1082                 }
1083
1084                 strcpy(xpm[line++], buf);
1085                 p++;
1086         }
1087
1088         return 0;
1089 }
1090 #endif
1091
1092 gboolean get_tag_range(GtkTextIter *iter,
1093                                        GtkTextTag *tag,
1094                                        GtkTextIter *start_iter,
1095                                        GtkTextIter *end_iter)
1096 {
1097         GtkTextIter _start_iter, _end_iter;
1098
1099         _end_iter = *iter;
1100         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1101                 debug_print("Can't find end");
1102                 return FALSE;
1103         }
1104
1105         _start_iter = _end_iter;
1106         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1107                 debug_print("Can't find start.");
1108                 return FALSE;
1109         }
1110
1111         *start_iter = _start_iter;
1112         *end_iter = _end_iter;
1113
1114         return TRUE;
1115 }
1116
1117 #if HAVE_LIBCOMPFACE
1118 GtkWidget *xface_get_from_header(const gchar *o_xface, GdkColor *background,
1119                                  GdkWindow *window)
1120 {
1121         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1122         static gboolean xpm_xface_init = TRUE;
1123         GdkPixmap *pixmap;
1124         GdkBitmap *mask;
1125         gchar xface[2048];
1126         strncpy(xface, o_xface, sizeof(xface));
1127
1128         if (!window) {
1129                 g_warning("no window\n");
1130                 return NULL;
1131         }
1132         if (uncompface(xface) < 0) {
1133                 g_warning("uncompface failed\n");
1134                 return NULL;
1135         }
1136
1137         if (xpm_xface_init) {
1138                 gint i;
1139
1140                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1141                         xpm_xface[i] = g_malloc(WIDTH + 1);
1142                         *xpm_xface[i] = '\0';
1143                 }
1144                 xpm_xface_init = FALSE;
1145         }
1146
1147         create_xpm_from_xface(xpm_xface, xface);
1148
1149         pixmap = gdk_pixmap_create_from_xpm_d
1150                 (window, &mask,
1151                  background, xpm_xface);
1152         return gtk_image_new_from_pixmap(pixmap, mask);
1153 }
1154 #endif
1155
1156 GtkWidget *face_get_from_header(const gchar *o_face)
1157 {
1158         gchar face[2048];
1159         gchar face_png[2048];
1160         gint pngsize;
1161         GdkPixbuf *pixbuf;
1162         GError *error = NULL;
1163         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
1164         GtkWidget *image;
1165
1166         if (o_face == NULL || strlen(o_face) == 0)
1167                 return NULL;
1168
1169         strncpy2(face, o_face, sizeof(face));
1170
1171         unfold_line(face); /* strip all whitespace and linebreaks */
1172         remove_space(face);
1173
1174         pngsize = base64_decode(face_png, face, strlen(face));
1175
1176         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
1177             !gdk_pixbuf_loader_close (loader, &error)) {
1178                 g_warning("loading face failed\n");
1179                 g_object_unref(loader);
1180                 return NULL;
1181         }
1182
1183         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
1184
1185         g_object_unref(loader);
1186
1187         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
1188                 g_object_unref(pixbuf);
1189                 g_warning("wrong_size");
1190                 return NULL;
1191         }
1192
1193         image = gtk_image_new_from_pixbuf(pixbuf);
1194         g_object_unref(pixbuf);
1195         return image;
1196 }
1197
1198 static GdkCursor *hand_cursor = NULL;
1199
1200 static void link_btn_enter(GtkButton *button, gpointer data)
1201 {
1202         GtkWidget *window = (GtkWidget *)data;
1203
1204         if (!hand_cursor)
1205                 hand_cursor = gdk_cursor_new(GDK_HAND2);
1206         if (window && window->window)
1207                 gdk_window_set_cursor(window->window, hand_cursor);
1208
1209         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1210         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1211
1212 }
1213
1214 static void link_btn_leave(GtkButton *button, gpointer data)
1215 {
1216         GtkWidget *window = (GtkWidget *)data;
1217
1218         if (window && window->window)
1219                 gdk_window_set_cursor(window->window, NULL);
1220
1221         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1222         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1223 }
1224
1225 static void link_btn_pressed(GtkButton *button, gpointer data)
1226 {
1227         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1228         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1229 }
1230
1231 static void link_btn_released(GtkButton *button, gpointer data)
1232 {
1233         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1234         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1235 }
1236
1237 static void link_btn_clicked(GtkButton *button, gpointer data)
1238 {
1239         gchar *url = (gchar *)data;
1240         gtk_button_set_relief(button, GTK_RELIEF_NONE);
1241         gtk_widget_set_state(GTK_WIDGET(button), GTK_STATE_NORMAL);
1242         open_uri(url, prefs_common.uri_cmd);
1243 }
1244
1245 static void link_btn_unrealize(GtkButton *button, gpointer data)
1246 {
1247         gchar *url = (gchar *)data;
1248         g_signal_handlers_disconnect_by_func(G_OBJECT(button),
1249                          G_CALLBACK(link_btn_clicked), url);
1250         g_free(url);
1251 }
1252
1253 GtkWidget *gtkut_get_link_btn(GtkWidget *window, const gchar *url, const gchar *label)
1254 {
1255         GtkWidget *btn;
1256         GtkWidget *btn_label;
1257         GdkColormap *cmap;
1258         GdkColor uri_color[2] = {{0, 0, 0, 0xffff}, {0, 0xffff, 0, 0}};
1259         gboolean success[2];
1260         gchar *local_url = NULL;
1261         if (!url)
1262                 return NULL;
1263
1264         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1265                                                &uri_color[0]);
1266         gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
1267                                                &uri_color[1]);
1268
1269         btn = gtk_button_new_with_label(label?label:url);
1270         gtk_button_set_relief(GTK_BUTTON(btn), GTK_RELIEF_NONE);
1271         btn_label = GTK_BIN(btn)->child;
1272         cmap = gdk_drawable_get_colormap(window->window);
1273         gdk_colormap_alloc_colors(cmap, uri_color, 2, FALSE, TRUE, success);
1274         if (success[0] == TRUE && success[1] == TRUE) {
1275                 GtkStyle *style;
1276                 gtk_widget_ensure_style(btn_label);
1277                 style = gtk_style_copy
1278                         (gtk_widget_get_style(btn_label));
1279                 style->fg[GTK_STATE_NORMAL]   = uri_color[0];
1280                 style->fg[GTK_STATE_ACTIVE]   = uri_color[1];
1281                 style->fg[GTK_STATE_PRELIGHT] = uri_color[0];
1282                 gtk_widget_set_style(btn_label, style);
1283         } else
1284                 g_warning("about_create(): color allocation failed.\n");
1285
1286         g_signal_connect(G_OBJECT(btn), "enter",
1287                          G_CALLBACK(link_btn_enter), window);
1288         g_signal_connect(G_OBJECT(btn), "leave",
1289                          G_CALLBACK(link_btn_leave), window);
1290         g_signal_connect(G_OBJECT(btn), "pressed",
1291                          G_CALLBACK(link_btn_pressed), window);
1292         g_signal_connect(G_OBJECT(btn), "released",
1293                          G_CALLBACK(link_btn_released), window);
1294
1295         local_url = g_strdup(url);
1296         g_signal_connect(G_OBJECT(btn), "clicked",
1297                          G_CALLBACK(link_btn_clicked), local_url);
1298         g_signal_connect(G_OBJECT(btn), "unrealize",
1299                          G_CALLBACK(link_btn_unrealize), local_url);
1300         return btn;
1301 }
1302
1303 GtkWidget *gtkut_sc_combobox_create(GtkWidget *eventbox, gboolean focus_on_click)
1304 {
1305         GtkWidget *combobox;
1306         GtkListStore *menu;
1307         GtkCellRenderer *rend;
1308
1309         menu = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT);
1310
1311         combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(menu));
1312
1313         rend = gtk_cell_renderer_text_new();
1314         gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), rend, TRUE);
1315         gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combobox), rend,
1316                         "markup", 0,
1317                         NULL);
1318
1319         if( eventbox != NULL )
1320                 gtk_container_add(GTK_CONTAINER(eventbox), combobox);
1321 #if GTK_CHECK_VERSION(2,6,0)
1322         gtk_combo_box_set_focus_on_click(GTK_COMBO_BOX(combobox), focus_on_click);
1323 #endif
1324         return combobox;
1325 }
1326
1327 static void gtkutils_smooth_scroll_do(GtkWidget *widget, GtkAdjustment *vadj,
1328                                       gfloat old_value, gfloat last_value,
1329                                       gint step)
1330 {
1331         gint change_value;
1332         gboolean up;
1333         gint i;
1334
1335         if (old_value < last_value) {
1336                 change_value = last_value - old_value;
1337                 up = FALSE;
1338         } else {
1339                 change_value = old_value - last_value;
1340                 up = TRUE;
1341         }
1342
1343         for (i = step; i <= change_value; i += step) {
1344                 vadj->value = old_value + (up ? -i : i);
1345                 g_signal_emit_by_name(G_OBJECT(vadj),
1346                                       "value_changed", 0);
1347         }
1348
1349         vadj->value = last_value;
1350         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1351
1352         gtk_widget_queue_draw(widget);
1353 }
1354
1355 static gboolean gtkutils_smooth_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1356 {
1357         gfloat upper;
1358         gfloat page_incr;
1359         gfloat old_value;
1360         gfloat last_value;
1361
1362         if (prefs_common.scroll_halfpage)
1363                 page_incr = vadj->page_increment / 2;
1364         else
1365                 page_incr = vadj->page_increment;
1366
1367         if (!up) {
1368                 upper = vadj->upper - vadj->page_size;
1369                 if (vadj->value < upper) {
1370                         old_value = vadj->value;
1371                         last_value = vadj->value + page_incr;
1372                         last_value = MIN(last_value, upper);
1373
1374                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1375                                                   last_value,
1376                                                   prefs_common.scroll_step);
1377                 } else
1378                         return FALSE;
1379         } else {
1380                 if (vadj->value > 0.0) {
1381                         old_value = vadj->value;
1382                         last_value = vadj->value - page_incr;
1383                         last_value = MAX(last_value, 0.0);
1384
1385                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1386                                                   last_value,
1387                                                   prefs_common.scroll_step);
1388                 } else
1389                         return FALSE;
1390         }
1391
1392         return TRUE;
1393 }
1394
1395 gboolean gtkutils_scroll_page(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1396 {
1397         gfloat upper;
1398         gfloat page_incr;
1399
1400         if (prefs_common.enable_smooth_scroll)
1401                 return gtkutils_smooth_scroll_page(widget, vadj, up);
1402
1403         if (prefs_common.scroll_halfpage)
1404                 page_incr = vadj->page_increment / 2;
1405         else
1406                 page_incr = vadj->page_increment;
1407
1408         if (!up) {
1409                 upper = vadj->upper - vadj->page_size;
1410                 if (vadj->value < upper) {
1411                         vadj->value += page_incr;
1412                         vadj->value = MIN(vadj->value, upper);
1413                         g_signal_emit_by_name(G_OBJECT(vadj),
1414                                               "value_changed", 0);
1415                 } else
1416                         return FALSE;
1417         } else {
1418                 if (vadj->value > 0.0) {
1419                         vadj->value -= page_incr;
1420                         vadj->value = MAX(vadj->value, 0.0);
1421                         g_signal_emit_by_name(G_OBJECT(vadj),
1422                                               "value_changed", 0);
1423                 } else
1424                         return FALSE;
1425         }
1426         return TRUE;
1427 }
1428
1429 static void gtkutils_smooth_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1430 {
1431         gfloat upper;
1432         gfloat old_value;
1433         gfloat last_value;
1434
1435         if (!up) {
1436                 upper = vadj->upper - vadj->page_size;
1437                 if (vadj->value < upper) {
1438                         old_value = vadj->value;
1439                         last_value = vadj->value + vadj->step_increment;
1440                         last_value = MIN(last_value, upper);
1441
1442                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1443                                                   last_value,
1444                                                   prefs_common.scroll_step);
1445                 }
1446         } else {
1447                 if (vadj->value > 0.0) {
1448                         old_value = vadj->value;
1449                         last_value = vadj->value - vadj->step_increment;
1450                         last_value = MAX(last_value, 0.0);
1451
1452                         gtkutils_smooth_scroll_do(widget, vadj, old_value,
1453                                                   last_value,
1454                                                   prefs_common.scroll_step);
1455                 }
1456         }
1457 }
1458
1459 void gtkutils_scroll_one_line(GtkWidget *widget, GtkAdjustment *vadj, gboolean up)
1460 {
1461         gfloat upper;
1462
1463         if (prefs_common.enable_smooth_scroll) {
1464                 gtkutils_smooth_scroll_one_line(widget, vadj, up);
1465                 return;
1466         }
1467
1468         if (!up) {
1469                 upper = vadj->upper - vadj->page_size;
1470                 if (vadj->value < upper) {
1471                         vadj->value += vadj->step_increment;
1472                         vadj->value = MIN(vadj->value, upper);
1473                         g_signal_emit_by_name(G_OBJECT(vadj),
1474                                               "value_changed", 0);
1475                 }
1476         } else {
1477                 if (vadj->value > 0.0) {
1478                         vadj->value -= vadj->step_increment;
1479                         vadj->value = MAX(vadj->value, 0.0);
1480                         g_signal_emit_by_name(G_OBJECT(vadj),
1481                                               "value_changed", 0);
1482                 }
1483         }
1484 }
1485
1486 gboolean gtkut_tree_model_text_iter_prev(GtkTreeModel *model,
1487                                  GtkTreeIter *iter,
1488                                  const gchar* text)
1489 /* do the same as gtk_tree_model_iter_next, but _prev instead.
1490    to use with widgets with one text column (gtk_combo_box_new_text()
1491    and with GtkComboBoxEntry's for instance),
1492 */
1493 {
1494         GtkTreeIter cur_iter;
1495         gchar *cur_value;
1496         gboolean valid;
1497         gint count;
1498
1499         g_return_val_if_fail(model != NULL, FALSE);
1500         g_return_val_if_fail(iter != NULL, FALSE);
1501
1502         if (text == NULL || *text == '\0')
1503                 return FALSE;
1504
1505         valid = gtk_tree_model_get_iter_first(model, &cur_iter);
1506         count = 0;
1507         while (valid) {
1508                 gtk_tree_model_get(model, &cur_iter, 0, &cur_value, -1);
1509
1510                 if (strcmp(text, cur_value) == 0) {
1511                         if (count <= 0)
1512                                 return FALSE;
1513
1514                         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1515                 }
1516
1517                 valid = gtk_tree_model_iter_next(model, &cur_iter);
1518                 count++;
1519         }
1520         return FALSE;
1521 }
1522
1523 gboolean gtkut_tree_model_get_iter_last(GtkTreeModel *model,
1524                                  GtkTreeIter *iter)
1525 /* do the same as gtk_tree_model_get_iter_first, but _last instead.
1526 */
1527 {
1528         gint count;
1529
1530         g_return_val_if_fail(model != NULL, FALSE);
1531         g_return_val_if_fail(iter != NULL, FALSE);
1532
1533         count = gtk_tree_model_iter_n_children(model, NULL);
1534
1535         if (count <= 0)
1536                 return FALSE;
1537
1538         return gtk_tree_model_iter_nth_child(model, iter, NULL, count - 1);
1539 }