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 Sylpheed-Claws 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
  64 gboolean gtkut_get_font_size(GtkWidget *widget,
  65                              gint *width, gint *height)
  66 {
  67         PangoLayout *layout;
  68         const gchar *str = "Abcdef";
  69
  70         g_return_val_if_fail(GTK_IS_WIDGET(widget), FALSE);
  71
  72         layout = gtk_widget_create_pango_layout(widget, str);
  73         g_return_val_if_fail(layout, FALSE);
  74         pango_layout_get_pixel_size(layout, width, height);
  75         if (width)
  76                 *width = *width / g_utf8_strlen(str, -1);
  77         g_object_unref(layout);
  78
  79         return TRUE;
  80 }
  81
  82 void gtkut_widget_set_small_font_size(GtkWidget *widget)
  83 {
  84         PangoFontDescription *font_desc;
  85         gint size;
  86
  87         g_return_if_fail(widget != NULL);
  88         g_return_if_fail(widget->style != NULL);
  89
  90         font_desc = pango_font_description_from_string(NORMAL_FONT);
  91         size = pango_font_description_get_size(font_desc);
  92         pango_font_description_set_size(font_desc, size * PANGO_SCALE_SMALL);
  93         gtk_widget_modify_font(widget, font_desc);
  94         pango_font_description_free(font_desc);
  95 }
  96
  97 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
  98 {
  99         g_return_if_fail(color != NULL);
 100
 101         color->pixel = 0L;
 102         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
 103         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
 104         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
 105 }
 106
 107 void gtkut_stock_button_set_create(GtkWidget **bbox,
 108                                    GtkWidget **button1, const gchar *label1,
 109                                    GtkWidget **button2, const gchar *label2,
 110                                    GtkWidget **button3, const gchar *label3)
 111 {
 112         g_return_if_fail(bbox != NULL);
 113         g_return_if_fail(button1 != NULL);
 114
 115         *bbox = gtk_hbutton_box_new();
 116         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
 117         gtk_box_set_spacing(GTK_BOX(*bbox), 5);
 118
 119         *button1 = gtk_button_new_from_stock(label1);
 120         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
 121         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 122         gtk_widget_show(*button1);
 123
 124         if (button2) {
 125                 *button2 = gtk_button_new_from_stock(label2);
 126                 GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
 127                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 128                 gtk_widget_show(*button2);
 129         }
 130
 131         if (button3) {
 132                 *button3 = gtk_button_new_from_stock(label3);
 133                 GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
 134                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 135                 gtk_widget_show(*button3);
 136         }
 137 }
 138
 139 static void combo_button_size_request(GtkWidget *widget,
 140                                       GtkRequisition *requisition,
 141                                       gpointer data)
 142 {
 143         ComboButton *combo = (ComboButton *)data;
 144
 145         if (combo->arrow->allocation.height != requisition->height)
 146                 gtk_widget_set_size_request(combo->arrow,
 147                                             -1, requisition->height);
 148 }
 149
 150 static void combo_button_enter(GtkWidget *widget, gpointer data)
 151 {
 152         ComboButton *combo = (ComboButton *)data;
 153
 154         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_PRELIGHT) {
 155                 gtk_widget_set_state(combo->arrow, GTK_STATE_PRELIGHT);
 156                 gtk_widget_queue_draw(combo->arrow);
 157         }
 158         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_PRELIGHT) {
 159                 gtk_widget_set_state(combo->button, GTK_STATE_PRELIGHT);
 160                 gtk_widget_queue_draw(combo->button);
 161         }
 162 }
 163
 164 static void combo_button_leave(GtkWidget *widget, gpointer data)
 165 {
 166         ComboButton *combo = (ComboButton *)data;
 167
 168         if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_NORMAL) {
 169                 gtk_widget_set_state(combo->arrow, GTK_STATE_NORMAL);
 170                 gtk_widget_queue_draw(combo->arrow);
 171         }
 172         if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_NORMAL) {
 173                 gtk_widget_set_state(combo->button, GTK_STATE_NORMAL);
 174                 gtk_widget_queue_draw(combo->button);
 175         }
 176 }
 177
 178 static gint combo_button_arrow_pressed(GtkWidget *widget, GdkEventButton *event,
 179                                        gpointer data)
 180 {
 181         ComboButton *combo = (ComboButton *)data;
 182
 183         if (!event) return FALSE;
 184
 185         gtk_menu_popup(GTK_MENU(combo->menu), NULL, NULL,
 186                        menu_button_position, combo->button,
 187                        event->button, event->time);
 188
 189         return FALSE;
 190 }
 191
 192 static void combo_button_destroy(GtkWidget *widget, gpointer data)
 193 {
 194         ComboButton *combo = (ComboButton *)data;
 195
 196         gtk_object_destroy(GTK_OBJECT(combo->factory));
 197         g_free(combo);
 198 }
 199
 200 ComboButton *gtkut_combo_button_create(GtkWidget *button,
 201                                        GtkItemFactoryEntry *entries,
 202                                        gint n_entries, const gchar *path,
 203                                        gpointer data)
 204 {
 205         ComboButton *combo;
 206         GtkWidget *arrow;
 207
 208         combo = g_new0(ComboButton, 1);
 209
 210         combo->arrow = gtk_button_new();
 211         arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
 212         gtk_widget_set_size_request(arrow, 7, -1);
 213         gtk_container_add(GTK_CONTAINER(combo->arrow), arrow);
 214         GTK_WIDGET_UNSET_FLAGS(combo->arrow, GTK_CAN_FOCUS);
 215         gtk_widget_show_all(combo->arrow);
 216
 217         combo->button = button;
 218         combo->menu = menu_create_items(entries, n_entries, path,
 219                                         &combo->factory, data);
 220         combo->data = data;
 221
 222         g_signal_connect(G_OBJECT(combo->button), "size_request",
 223                          G_CALLBACK(combo_button_size_request), combo);
 224         g_signal_connect(G_OBJECT(combo->button), "enter",
 225                          G_CALLBACK(combo_button_enter), combo);
 226         g_signal_connect(G_OBJECT(combo->button), "leave",
 227                          G_CALLBACK(combo_button_leave), combo);
 228         g_signal_connect(G_OBJECT(combo->arrow), "enter",
 229                          G_CALLBACK(combo_button_enter), combo);
 230         g_signal_connect(G_OBJECT(combo->arrow), "leave",
 231                          G_CALLBACK(combo_button_leave), combo);
 232         g_signal_connect(G_OBJECT(combo->arrow), "button_press_event",
 233                          G_CALLBACK(combo_button_arrow_pressed), combo);
 234         g_signal_connect(G_OBJECT(combo->arrow), "destroy",
 235                          G_CALLBACK(combo_button_destroy), combo);
 236
 237         return combo;
 238 }
 239
 240 #define CELL_SPACING 1
 241 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 242                                     (((row) + 1) * CELL_SPACING) + \
 243                                     (clist)->voffset)
 244 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 245                                    ((clist)->row_height + CELL_SPACING))
 246
 247 void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node)
 248 {
 249         GtkCList *clist = GTK_CLIST(ctree);
 250         gint row;
 251         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 252
 253         g_return_if_fail(ctree != NULL);
 254         g_return_if_fail(node != NULL);
 255
 256         row = g_list_position(clist->row_list, (GList *)node);
 257         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 258         row_visibility = gtk_clist_row_is_visible(clist, row);
 259         prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
 260         next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
 261
 262         if (row_visibility == GTK_VISIBILITY_NONE) {
 263                 gtk_clist_moveto(clist, row, -1, 0.5, 0);
 264                 return;
 265         }
 266         if (row_visibility == GTK_VISIBILITY_FULL &&
 267             prev_row_visibility == GTK_VISIBILITY_FULL &&
 268             next_row_visibility == GTK_VISIBILITY_FULL)
 269                 return;
 270         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 271             next_row_visibility != GTK_VISIBILITY_FULL)
 272                 return;
 273
 274         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 275                 gtk_clist_moveto(clist, row, -1, 0.2, 0);
 276                 return;
 277         }
 278         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 279                 gtk_clist_moveto(clist, row, -1, 0.8, 0);
 280                 return;
 281         }
 282 }
 283
 284 #undef CELL_SPACING
 285 #undef ROW_TOP_YPIXEL
 286 #undef ROW_FROM_YPIXEL
 287
 288 gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
 289 {
 290         g_return_val_if_fail(ctree != NULL, -1);
 291         g_return_val_if_fail(node != NULL, -1);
 292
 293         return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
 294 }
 295
 296 /* get the next node, including the invisible one */
 297 GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
 298 {
 299         GtkCTreeNode *parent;
 300
 301         if (!node) return NULL;
 302
 303         if (GTK_CTREE_ROW(node)->children)
 304                 return GTK_CTREE_ROW(node)->children;
 305
 306         if (GTK_CTREE_ROW(node)->sibling)
 307                 return GTK_CTREE_ROW(node)->sibling;
 308
 309         for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
 310              parent = GTK_CTREE_ROW(parent)->parent) {
 311                 if (GTK_CTREE_ROW(parent)->sibling)
 312                         return GTK_CTREE_ROW(parent)->sibling;
 313         }
 314
 315         return NULL;
 316 }
 317
 318 /* get the previous node, including the invisible one */
 319 GtkCTreeNode *gtkut_ctree_node_prev(GtkCTree *ctree, GtkCTreeNode *node)
 320 {
 321         GtkCTreeNode *prev;
 322         GtkCTreeNode *child;
 323
 324         if (!node) return NULL;
 325
 326         prev = GTK_CTREE_NODE_PREV(node);
 327         if (prev == GTK_CTREE_ROW(node)->parent)
 328                 return prev;
 329
 330         child = prev;
 331         while (GTK_CTREE_ROW(child)->children != NULL) {
 332                 child = GTK_CTREE_ROW(child)->children;
 333                 while (GTK_CTREE_ROW(child)->sibling != NULL)
 334                         child = GTK_CTREE_ROW(child)->sibling;
 335         }
 336
 337         return child;
 338 }
 339
 340 gboolean gtkut_ctree_node_is_selected(GtkCTree *ctree, GtkCTreeNode *node)
 341 {
 342         GtkCList *clist = GTK_CLIST(ctree);
 343         GList *cur;
 344
 345         for (cur = clist->selection; cur != NULL; cur = cur->next) {
 346                 if (node == GTK_CTREE_NODE(cur->data))
 347                         return TRUE;
 348         }
 349
 350         return FALSE;
 351 }
 352
 353 GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
 354                                                 GtkCTreeNode *node)
 355 {
 356         if (!node) return NULL;
 357
 358         while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
 359                 if (!GTK_CTREE_ROW(node)->expanded)
 360                         return node;
 361         }
 362
 363         return NULL;
 364 }
 365
 366 void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
 367 {
 368         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 369                 gtk_ctree_expand(ctree, node);
 370 }
 371
 372 gboolean gtkut_ctree_node_is_parent(GtkCTreeNode *parent, GtkCTreeNode *node)
 373 {
 374         GtkCTreeNode *tmp;
 375         g_return_val_if_fail(node != NULL, FALSE);
 376         g_return_val_if_fail(parent != NULL, FALSE);
 377         tmp = node;
 378
 379         while (tmp) {
 380                 if(GTK_CTREE_ROW(tmp)->parent && GTK_CTREE_ROW(tmp)->parent == parent)
 381                         return TRUE;
 382                 tmp = GTK_CTREE_ROW(tmp)->parent;
 383         }
 384
 385         return FALSE;
 386 }
 387
 388 void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
 389 {
 390         gtkut_clist_set_focus_row(GTK_CLIST(ctree),
 391                                   gtkut_ctree_get_nth_from_node(ctree, node));
 392 }
 393
 394 void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
 395 {
 396         clist->focus_row = row;
 397         GTKUT_CTREE_REFRESH(clist);
 398 }
 399
 400 void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
 401 {
 402         va_list args;
 403         gchar *s;
 404         GList *combo_items = NULL;
 405
 406         g_return_if_fail(str1 != NULL);
 407
 408         combo_items = g_list_append(combo_items, (gpointer)str1);
 409         va_start(args, str1);
 410         s = va_arg(args, gchar*);
 411         while (s) {
 412                 combo_items = g_list_append(combo_items, (gpointer)s);
 413                 s = va_arg(args, gchar*);
 414         }
 415         va_end(args);
 416
 417         gtk_combo_set_popdown_strings(combo, combo_items);
 418
 419         g_list_free(combo_items);
 420 }
 421
 422 gchar *gtkut_editable_get_selection(GtkEditable *editable)
 423 {
 424         guint start_pos, end_pos;
 425         gboolean found;
 426
 427         g_return_val_if_fail(GTK_IS_EDITABLE(editable), NULL);
 428
 429         found = gtk_editable_get_selection_bounds(editable,
 430                                                   &start_pos, &end_pos);
 431         if (found)
 432                 return gtk_editable_get_chars(editable, start_pos, end_pos);
 433         else
 434                 return NULL;
 435 }
 436
 437 void gtkut_editable_disable_im(GtkEditable *editable)
 438 {
 439         g_return_if_fail(editable != NULL);
 440
 441 #if USE_XIM
 442         if (editable->ic) {
 443                 gdk_ic_destroy(editable->ic);
 444                 editable->ic = NULL;
 445         }
 446         if (editable->ic_attr) {
 447                 gdk_ic_attr_destroy(editable->ic_attr);
 448                 editable->ic_attr = NULL;
 449         }
 450 #endif
 451 }
 452
 453 void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
 454 {
 455         gtk_container_remove(container, widget);
 456 }
 457
 458 gboolean gtkut_text_buffer_match_string(GtkTextBuffer *textbuf,
 459                                         const GtkTextIter *iter,
 460                                         gunichar *wcs, gint len,
 461                                         gboolean case_sens)
 462 {
 463         GtkTextIter start_iter, end_iter;
 464         gchar *utf8str, *p;
 465         gint match_count;
 466
 467         start_iter = end_iter = *iter;
 468         gtk_text_iter_forward_chars(&end_iter, len);
 469
 470         utf8str = gtk_text_buffer_get_text(textbuf, &start_iter, &end_iter,
 471                                            FALSE);
 472         if (!utf8str) return FALSE;
 473
 474         if ((gint)g_utf8_strlen(utf8str, -1) != len) {
 475                 g_free(utf8str);
 476                 return FALSE;
 477         }
 478
 479         for (p = utf8str, match_count = 0;
 480              *p != '\0' && match_count < len;
 481              p = g_utf8_next_char(p), match_count++) {
 482                 gunichar wc;
 483
 484                 wc = g_utf8_get_char(p);
 485
 486                 if (case_sens) {
 487                         if (wc != wcs[match_count])
 488                                 break;
 489                 } else {
 490                         if (g_unichar_tolower(wc) !=
 491                             g_unichar_tolower(wcs[match_count]))
 492                                 break;
 493                 }
 494         }
 495
 496         g_free(utf8str);
 497
 498         if (match_count == len)
 499                 return TRUE;
 500         else
 501                 return FALSE;
 502 }
 503
 504 gboolean gtkut_text_buffer_find(GtkTextBuffer *buffer, const GtkTextIter *iter,
 505                                 const gchar *str, gboolean case_sens,
 506                                 GtkTextIter *match_pos)
 507 {
 508         gunichar *wcs;
 509         gint len;
 510         glong items_read = 0, items_written = 0;
 511         GError *error = NULL;
 512         GtkTextIter iter_;
 513         gboolean found = FALSE;
 514
 515         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 516         if (error != NULL) {
 517                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n",
 518                           error->message);
 519                 g_error_free(error);
 520         }
 521         if (!wcs || items_written <= 0) return FALSE;
 522         len = (gint)items_written;
 523
 524         iter_ = *iter;
 525         do {
 526                 found = gtkut_text_buffer_match_string
 527                         (buffer, &iter_, wcs, len, case_sens);
 528                 if (found) {
 529                         *match_pos = iter_;
 530                         break;
 531                 }
 532         } while (gtk_text_iter_forward_char(&iter_));
 533
 534         g_free(wcs);
 535
 536         return found;
 537 }
 538
 539 gboolean gtkut_text_buffer_find_backward(GtkTextBuffer *buffer,
 540                                          const GtkTextIter *iter,
 541                                          const gchar *str, gboolean case_sens,
 542                                          GtkTextIter *match_pos)
 543 {
 544         gunichar *wcs;
 545         gint len;
 546         glong items_read = 0, items_written = 0;
 547         GError *error = NULL;
 548         GtkTextIter iter_;
 549         gboolean found = FALSE;
 550
 551         wcs = g_utf8_to_ucs4(str, -1, &items_read, &items_written, &error);
 552         if (error != NULL) {
 553                 g_warning("An error occured while converting a string from UTF-8 to UCS-4: %s\n", error->message);
 554                 g_error_free(error);
 555         }
 556         if (!wcs || items_written <= 0) return FALSE;
 557         len = (gint)items_written;
 558
 559         iter_ = *iter;
 560         while (gtk_text_iter_backward_char(&iter_)) {
 561                 found = gtkut_text_buffer_match_string
 562                         (buffer, &iter_, wcs, len, case_sens);
 563                 if (found) {
 564                         *match_pos = iter_;
 565                         break;
 566                 }
 567         }
 568
 569         g_free(wcs);
 570
 571         return found;
 572 }
 573
 574 gchar *gtkut_text_view_get_selection(GtkTextView *textview)
 575 {
 576         GtkTextBuffer *buffer;
 577         GtkTextIter start_iter, end_iter;
 578         gboolean found;
 579
 580         g_return_val_if_fail(GTK_IS_TEXT_VIEW(textview), NULL);
 581
 582         buffer = gtk_text_view_get_buffer(textview);
 583         found = gtk_text_buffer_get_selection_bounds(buffer,
 584                                                      &start_iter,
 585                                                      &end_iter);
 586         if (found)
 587                 return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter,
 588                                                 FALSE);
 589         else
 590                 return NULL;
 591 }
 592
 593
 594 void gtkut_text_view_set_position(GtkTextView *text, gint pos)
 595 {
 596         GtkTextBuffer *buffer;
 597         GtkTextIter iter;
 598
 599         g_return_val_if_fail(text != NULL, FALSE);
 600
 601         buffer = gtk_text_view_get_buffer(text);
 602
 603         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
 604         gtk_text_buffer_place_cursor(buffer, &iter);
 605         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
 606 }
 607
 608 gboolean gtkut_text_view_search_string(GtkTextView *text, const gchar *str,
 609                                         gboolean case_sens)
 610 {
 611         GtkTextBuffer *buffer;
 612         GtkTextIter iter, match_pos;
 613         GtkTextMark *mark;
 614         gint len;
 615
 616         g_return_val_if_fail(text != NULL, FALSE);
 617         g_return_val_if_fail(str != NULL, FALSE);
 618
 619         buffer = gtk_text_view_get_buffer(text);
 620
 621         len = g_utf8_strlen(str, -1);
 622         g_return_val_if_fail(len >= 0, FALSE);
 623
 624         mark = gtk_text_buffer_get_insert(buffer);
 625         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 626
 627         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
 628                                    &match_pos)) {
 629                 GtkTextIter end = match_pos;
 630
 631                 gtk_text_iter_forward_chars(&end, len);
 632                 /* place "insert" at the last character */
 633                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
 634                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 635                 return TRUE;
 636         }
 637
 638         return FALSE;
 639 }
 640
 641 gboolean gtkut_text_view_search_string_backward(GtkTextView *text, const gchar *str,
 642                                         gboolean case_sens)
 643 {
 644         GtkTextBuffer *buffer;
 645         GtkTextIter iter, match_pos;
 646         GtkTextMark *mark;
 647         gint len;
 648
 649         g_return_val_if_fail(text != NULL, FALSE);
 650         g_return_val_if_fail(str != NULL, FALSE);
 651
 652         buffer = gtk_text_view_get_buffer(text);
 653
 654         len = g_utf8_strlen(str, -1);
 655         g_return_val_if_fail(len >= 0, FALSE);
 656
 657         mark = gtk_text_buffer_get_insert(buffer);
 658         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
 659
 660         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
 661                                             &match_pos)) {
 662                 GtkTextIter end = match_pos;
 663
 664                 gtk_text_iter_forward_chars(&end, len);
 665                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
 666                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
 667                 return TRUE;
 668         }
 669
 670         return FALSE;
 671 }
 672
 673 void gtkut_window_popup(GtkWidget *window)
 674 {
 675         gint x, y, sx, sy, new_x, new_y;
 676
 677         g_return_if_fail(window != NULL);
 678         g_return_if_fail(window->window != NULL);
 679
 680         sx = gdk_screen_width();
 681         sy = gdk_screen_height();
 682
 683         gdk_window_get_origin(window->window, &x, &y);
 684         new_x = x % sx; if (new_x < 0) new_x = 0;
 685         new_y = y % sy; if (new_y < 0) new_y = 0;
 686         if (new_x != x || new_y != y)
 687                 gdk_window_move(window->window, new_x, new_y);
 688
 689         gtk_window_present(GTK_WINDOW(window));
 690 }
 691
 692 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 693 {
 694         gint x, y;
 695         gint sx, sy;
 696
 697         g_return_if_fail(widget != NULL);
 698         g_return_if_fail(widget->window != NULL);
 699
 700         sx = gdk_screen_width();
 701         sy = gdk_screen_height();
 702
 703         /* gdk_window_get_root_origin ever return *rootwindow*'s position */
 704         gdk_window_get_root_origin(widget->window, &x, &y);
 705
 706         x %= sx; if (x < 0) x = 0;
 707         y %= sy; if (y < 0) y = 0;
 708         *px = x;
 709         *py = y;
 710 }
 711
 712 void gtkut_widget_draw_now(GtkWidget *widget)
 713 {
 714         if (GTK_WIDGET_VISIBLE(widget) && GTK_WIDGET_DRAWABLE(widget))
 715                 gdk_window_process_updates(widget->window, FALSE);
 716 }
 717
 718 static void gtkut_clist_bindings_add(GtkWidget *clist)
 719 {
 720         GtkBindingSet *binding_set;
 721
 722         binding_set = gtk_binding_set_by_class
 723                 (GTK_CLIST_GET_CLASS(clist));
 724
 725         gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
 726                                      "scroll_vertical", 2,
 727                                      G_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 728                                      G_TYPE_FLOAT, 0.0);
 729         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 730                                      "scroll_vertical", 2,
 731                                      G_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 732                                      G_TYPE_FLOAT, 0.0);
 733 }
 734
 735 void gtkut_widget_init(void)
 736 {
 737         GtkWidget *clist;
 738
 739         clist = gtk_clist_new(1);
 740         g_object_ref(G_OBJECT(clist));
 741         gtk_object_sink(GTK_OBJECT(clist));
 742         gtkut_clist_bindings_add(clist);
 743         g_object_unref(G_OBJECT(clist));
 744
 745         clist = gtk_ctree_new(1, 0);
 746         g_object_ref(G_OBJECT(clist));
 747         gtk_object_sink(GTK_OBJECT(clist));
 748         gtkut_clist_bindings_add(clist);
 749         g_object_unref(G_OBJECT(clist));
 750
 751         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 752         g_object_ref(G_OBJECT(clist));
 753         gtk_object_sink(GTK_OBJECT(clist));
 754         gtkut_clist_bindings_add(clist);
 755         g_object_unref(G_OBJECT(clist));
 756 }
 757
 758 void gtkut_widget_set_app_icon(GtkWidget *widget)
 759 {
 760 #include "pixmaps/sylpheed.xpm"
 761         static GdkPixmap *sylpheedxpm;
 762         static GdkBitmap *sylpheedxpmmask;
 763
 764         g_return_if_fail(widget != NULL);
 765         g_return_if_fail(widget->window != NULL);
 766         if (!sylpheedxpm) {
 767                 PIXMAP_CREATE(widget, sylpheedxpm, sylpheedxpmmask, sylpheed_xpm);
 768         }
 769         gdk_window_set_icon(widget->window, NULL, sylpheedxpm, sylpheedxpmmask);
 770 }
 771
 772 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 773 {
 774         static GdkPixmap *xpm;
 775         static GdkBitmap *bmp;
 776
 777         g_return_if_fail(widget != NULL);
 778         g_return_if_fail(widget->window != NULL);
 779         if (!xpm) {
 780                 stock_pixmap_gdk(widget, STOCK_PIXMAP_MAIL_COMPOSE, &xpm, &bmp);
 781         }
 782         gdk_window_set_icon(widget->window, NULL, xpm, bmp);
 783 }
 784
 785 GtkWidget *label_window_create(const gchar *str)
 786 {
 787         GtkWidget *window;
 788         GtkWidget *label;
 789
 790         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 791         gtk_widget_set_size_request(window, 380, 60);
 792         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 793         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 794         gtk_window_set_title(GTK_WINDOW(window), str);
 795         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 796         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 797         manage_window_set_transient(GTK_WINDOW(window));
 798
 799         label = gtk_label_new(str);
 800         gtk_container_add(GTK_CONTAINER(window), label);
 801         gtk_widget_show(label);
 802
 803         gtk_widget_show_now(window);
 804
 805         return window;
 806 }
 807
 808 GtkWidget *gtkut_account_menu_new(GList                 *ac_list,
 809                                   GCallback              callback,
 810                                   gpointer               data)
 811 {
 812         GList *cur_ac;
 813         GtkWidget *menu;
 814
 815         g_return_val_if_fail(ac_list != NULL, NULL);
 816
 817         menu = gtk_menu_new();
 818
 819         for (cur_ac = ac_list; cur_ac != NULL; cur_ac = cur_ac->next) {
 820                 gchar *name;
 821                 GtkWidget *menuitem;
 822                 PrefsAccount *account;
 823
 824                 account = (PrefsAccount *) cur_ac->data;
 825                 if (account->name)
 826                         name = g_strdup_printf("%s: %s <%s>",
 827                                                account->account_name,
 828                                                account->name,
 829                                                account->address);
 830                 else
 831                         name = g_strdup_printf("%s: %s",
 832                                                account->account_name,
 833                                                account->address);
 834                 MENUITEM_ADD(menu, menuitem, name, account->account_id);
 835                 g_free(name);
 836                 if (callback != NULL)
 837                         g_signal_connect(G_OBJECT(menuitem), "activate",
 838                                          callback, data);
 839         }
 840         return menu;
 841 }
 842
 843 void gtkut_set_widget_bgcolor_rgb(GtkWidget *widget, guint rgbvalue)
 844 {
 845         GtkStyle *newstyle;
 846         GdkColor gdk_color;
 847
 848         gtkut_convert_int_to_gdk_color(rgbvalue, &gdk_color);
 849         newstyle = gtk_style_copy(gtk_widget_get_default_style());
 850         newstyle->bg[GTK_STATE_NORMAL]   = gdk_color;
 851         newstyle->bg[GTK_STATE_PRELIGHT] = gdk_color;
 852         newstyle->bg[GTK_STATE_ACTIVE]   = gdk_color;
 853         gtk_widget_set_style(widget, newstyle);
 854 }
 855
 856 /*!
 857  *\brief        Tries to find a focused child using a lame strategy
 858  */
 859 GtkWidget *gtkut_get_focused_child(GtkContainer *parent)
 860 {
 861         GtkWidget *result = NULL;
 862         GList *child_list = NULL;
 863         GList *c;
 864
 865         g_return_val_if_fail(parent, NULL);
 866
 867         /* Get children list and see which has the focus. */
 868         child_list = gtk_container_get_children(parent);
 869         if (!child_list)
 870                 return NULL;
 871
 872         for (c = child_list; c != NULL; c = g_list_next(c)) {
 873                 if (c->data && GTK_IS_WIDGET(c->data)) {
 874                         if (GTK_WIDGET_HAS_FOCUS(GTK_WIDGET(c->data))) {
 875                                 result = GTK_WIDGET(c->data);
 876                                 break;
 877                         }
 878                 }
 879         }
 880
 881         /* See if the returned widget is a container itself; if it is,
 882          * see if one of its children is focused. If the focused
 883          * container has no focused child, it is itself a focusable
 884          * child, and has focus. */
 885         if (result && GTK_IS_CONTAINER(result)) {
 886                 GtkWidget *tmp =  gtkut_get_focused_child(GTK_CONTAINER(result));
 887
 888                 if (tmp)
 889                         result = tmp;
 890         } else {
 891                 /* Try the same for each container in the chain */
 892                 for (c = child_list; c != NULL && !result; c = g_list_next(c)) {
 893                         if (c->data && GTK_IS_WIDGET(c->data)
 894                         &&  GTK_IS_CONTAINER(c->data)) {
 895                                 result = gtkut_get_focused_child
 896                                         (GTK_CONTAINER(c->data));
 897                         }
 898                 }
 899
 900         }
 901
 902         g_list_free(child_list);
 903
 904         return result;
 905 }
 906
 907 /*!
 908  *\brief        Create a Browse (file) button based on GTK+ stock
 909  */
 910 GtkWidget *gtkut_get_browse_file_btn(const gchar *button_label)
 911 {
 912         GtkWidget *button;
 913
 914 #if GTK_CHECK_VERSION(2, 6, 0)
 915         button = gtk_button_new_with_mnemonic(button_label);
 916         gtk_button_set_image((GtkButton*)button,
 917                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 918 #else
 919         GtkWidget* image;
 920         GtkWidget* box;
 921         GtkWidget* label;
 922
 923         button = gtk_button_new();
 924         box = gtk_hbox_new(FALSE, 0);
 925
 926         image = gtk_image_new_from_stock(GTK_STOCK_OPEN, GTK_ICON_SIZE_BUTTON);
 927         label = gtk_label_new(NULL);
 928         gtk_label_set_text_with_mnemonic(GTK_LABEL(label), button_label);
 929         gtk_label_set_mnemonic_widget(GTK_LABEL(label), button);
 930
 931         gtk_box_pack_start((GtkBox*)box, image, FALSE, FALSE, 1);
 932         gtk_box_pack_end((GtkBox*)box, label, FALSE, FALSE, 1);
 933         gtk_widget_show(label);
 934         gtk_widget_show(image);
 935         gtk_widget_show(box);
 936         gtk_container_add(GTK_CONTAINER(button), box);
 937 #endif
 938         return button;
 939 }
 940
 941 /*!
 942  *\brief        Create a Browse (directory) button based on GTK+ stock
 943  */
 944 GtkWidget *gtkut_get_browse_directory_btn(const gchar *button_label)
 945 {
 946         GtkWidget *button;
 947
 948 #if GTK_CHECK_VERSION(2, 6, 0)
 949         button = gtk_button_new_with_mnemonic(button_label);
 950         gtk_button_set_image((GtkButton*)button,
 951                 gtk_image_new_from_stock(GTK_STOCK_DIRECTORY, GTK_ICON_SIZE_BUTTON));
 952 #else
 953         GtkWidget* image;
 954         GtkWidget* box;
 955         GtkWidget* label;
 956
 957         button = gtk_button_new();
 958         box = gtk_hbox_new(FALSE, 0);
 959
 960         image = gtk_image_new_from_stock(GTK_STOCK_OPEN, GTK_ICON_SIZE_BUTTON);
 961         label = gtk_label_new(NULL);
 962         gtk_label_set_text_with_mnemonic(GTK_LABEL(label), button_label);
 963         gtk_label_set_mnemonic_widget(GTK_LABEL(label), button);
 964
 965         gtk_box_pack_start((GtkBox*)box, image, FALSE, FALSE, 1);
 966         gtk_box_pack_end((GtkBox*)box, label, FALSE, FALSE, 1);
 967         gtk_widget_show(label);
 968         gtk_widget_show(image);
 969         gtk_widget_show(box);
 970         gtk_container_add(GTK_CONTAINER(button), box);
 971 #endif
 972         return button;
 973 }
 974
 975 #if HAVE_LIBCOMPFACE
 976 gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
 977 {
 978         static gchar *bit_pattern[] = {
 979                 "....",
 980                 "...#",
 981                 "..#.",
 982                 "..##",
 983                 ".#..",
 984                 ".#.#",
 985                 ".##.",
 986                 ".###",
 987                 "#...",
 988                 "#..#",
 989                 "#.#.",
 990                 "#.##",
 991                 "##..",
 992                 "##.#",
 993                 "###.",
 994                 "####"
 995         };
 996
 997         static gchar *xface_header = "48 48 2 1";
 998         static gchar *xface_black  = "# c #000000";
 999         static gchar *xface_white  = ". c #ffffff";
1000
1001         gint i, line = 0;
1002         const guchar *p;
1003         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
1004
1005         p = xface;
1006
1007         strcpy(xpm[line++], xface_header);
1008         strcpy(xpm[line++], xface_black);
1009         strcpy(xpm[line++], xface_white);
1010
1011         for (i = 0; i < HEIGHT; i++) {
1012                 gint col;
1013
1014                 buf[0] = '\0';
1015
1016                 for (col = 0; col < 3; col++) {
1017                         gint figure;
1018
1019                         p += 2;  /* skip '0x' */
1020
1021                         for (figure = 0; figure < 4; figure++) {
1022                                 gint n = 0;
1023
1024                                 if ('0' <= *p && *p <= '9') {
1025                                         n = *p - '0';
1026                                 } else if ('a' <= *p && *p <= 'f') {
1027                                         n = *p - 'a' + 10;
1028                                 } else if ('A' <= *p && *p <= 'F') {
1029                                         n = *p - 'A' + 10;
1030                                 }
1031
1032                                 strcat(buf, bit_pattern[n]);
1033                                 p++;  /* skip ',' */
1034                         }
1035
1036                         p++;  /* skip '\n' */
1037                 }
1038
1039                 strcpy(xpm[line++], buf);
1040                 p++;
1041         }
1042
1043         return 0;
1044 }
1045 #endif
1046
1047 gboolean get_tag_range(GtkTextIter *iter,
1048                                        GtkTextTag *tag,
1049                                        GtkTextIter *start_iter,
1050                                        GtkTextIter *end_iter)
1051 {
1052         GtkTextIter _start_iter, _end_iter;
1053
1054         _end_iter = *iter;
1055         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1056                 debug_print("Can't find end");
1057                 return FALSE;
1058         }
1059
1060         _start_iter = _end_iter;
1061         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1062                 debug_print("Can't find start.");
1063                 return FALSE;
1064         }
1065
1066         *start_iter = _start_iter;
1067         *end_iter = _end_iter;
1068
1069         return TRUE;
1070 }
1071
1072 #if HAVE_LIBCOMPFACE
1073 GtkWidget *xface_get_from_header(const gchar *o_xface, GdkColor *background,
1074                                  GdkWindow *window)
1075 {
1076         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1077         static gboolean xpm_xface_init = TRUE;
1078         GdkPixmap *pixmap;
1079         GdkBitmap *mask;
1080         gchar xface[2048];
1081         strncpy(xface, o_xface, sizeof(xface));
1082
1083         if (uncompface(xface) < 0) {
1084                 g_warning("uncompface failed\n");
1085                 return NULL;
1086         }
1087
1088         if (xpm_xface_init) {
1089                 gint i;
1090
1091                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1092                         xpm_xface[i] = g_malloc(WIDTH + 1);
1093                         *xpm_xface[i] = '\0';
1094                 }
1095                 xpm_xface_init = FALSE;
1096         }
1097
1098         create_xpm_from_xface(xpm_xface, xface);
1099
1100         pixmap = gdk_pixmap_create_from_xpm_d
1101                 (window, &mask,
1102                  background, xpm_xface);
1103         return gtk_image_new_from_pixmap(pixmap, mask);
1104 }
1105 #endif
1106
1107 GtkWidget *face_get_from_header(const gchar *o_face)
1108 {
1109         gchar face[2048];
1110         gchar face_png[2048];
1111         gint pngsize;
1112         GdkPixbuf *pixbuf;
1113         GError *error = NULL;
1114         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
1115         GtkWidget *image;
1116
1117         strncpy2(face, o_face, sizeof(face));
1118
1119         unfold_line(face); /* strip all whitespace and linebreaks */
1120         remove_space(face);
1121
1122         pngsize = base64_decode(face_png, face, strlen(face));
1123
1124         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
1125             !gdk_pixbuf_loader_close (loader, &error)) {
1126                 g_warning("loading face failed\n");
1127                 g_object_unref(loader);
1128                 return NULL;
1129         }
1130
1131         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
1132
1133         g_object_unref(loader);
1134
1135         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
1136                 g_object_unref(pixbuf);
1137                 g_warning("wrong_size");
1138                 return NULL;
1139         }
1140
1141         image = gtk_image_new_from_pixbuf(pixbuf);
1142         g_object_unref(pixbuf);
1143         return image;
1144 }