Pileus Git - ~andy/gtk/blob - gtk/gtkmenubar.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 /**
  28  * SECTION:gtkmenubar
  29  * @Title: GtkMenuBar
  30  * @Short_description: A subclass of GtkMenuShell which holds GtkMenuItem widgets
  31  * @See_also: #GtkMenuShell, #GtkMenu, #GtkMenuItem
  32  *
  33  * The #GtkMenuBar is a subclass of #GtkMenuShell which contains one or
  34  * more #GtkMenuItems. The result is a standard menu bar which can hold
  35  * many menu items.
  36  */
  37
  38 #include "config.h"
  39
  40 #include "gtkmenubar.h"
  41
  42 #include "gtkbindings.h"
  43 #include "gtkmain.h"
  44 #include "gtkmarshalers.h"
  45 #include "gtkmenuitemprivate.h"
  46 #include "gtkmenuprivate.h"
  47 #include "gtkmenushellprivate.h"
  48 #include "gtksettings.h"
  49 #include "gtksizerequest.h"
  50 #include "gtkwindow.h"
  51 #include "gtkcontainerprivate.h"
  52 #include "gtkintl.h"
  53 #include "gtkprivate.h"
  54 #include "gtktypebuiltins.h"
  55
  56 #define BORDER_SPACING  0
  57 #define DEFAULT_IPADDING 1
  58
  59 /* Properties */
  60 enum {
  61   PROP_0,
  62   PROP_PACK_DIRECTION,
  63   PROP_CHILD_PACK_DIRECTION
  64 };
  65
  66 struct _GtkMenuBarPrivate
  67 {
  68   GtkPackDirection pack_direction;
  69   GtkPackDirection child_pack_direction;
  70 };
  71
  72
  73 static void gtk_menu_bar_set_property      (GObject             *object,
  74                                             guint                prop_id,
  75                                             const GValue        *value,
  76                                             GParamSpec          *pspec);
  77 static void gtk_menu_bar_get_property      (GObject             *object,
  78                                             guint                prop_id,
  79                                             GValue              *value,
  80                                             GParamSpec          *pspec);
  81 static void gtk_menu_bar_get_preferred_width (GtkWidget     *widget,
  82                                               gint          *minimum,
  83                                               gint          *natural);
  84 static void gtk_menu_bar_get_preferred_height (GtkWidget    *widget,
  85                                                gint         *minimum,
  86                                                gint         *natural);
  87 static void gtk_menu_bar_get_preferred_width_for_height (GtkWidget    *widget,
  88                                                          gint          height,
  89                                                          gint         *minimum,
  90                                                          gint         *natural);
  91 static void gtk_menu_bar_get_preferred_height_for_width (GtkWidget    *widget,
  92                                                          gint          width,
  93                                                          gint         *minimum,
  94                                                          gint         *natural);
  95 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  96                                             GtkAllocation   *allocation);
  97 static gint gtk_menu_bar_draw              (GtkWidget       *widget,
  98                                             cairo_t         *cr);
  99 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
 100                                             GtkWidget       *old_toplevel);
 101 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
 102 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
 103                                             GtkMenuDirectionType direction);
 104
 105 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
 106
 107 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
 108
 109 static void
 110 gtk_menu_bar_class_init (GtkMenuBarClass *class)
 111 {
 112   GObjectClass *gobject_class;
 113   GtkWidgetClass *widget_class;
 114   GtkMenuShellClass *menu_shell_class;
 115
 116   GtkBindingSet *binding_set;
 117
 118   gobject_class = (GObjectClass*) class;
 119   widget_class = (GtkWidgetClass*) class;
 120   menu_shell_class = (GtkMenuShellClass*) class;
 121
 122   gobject_class->get_property = gtk_menu_bar_get_property;
 123   gobject_class->set_property = gtk_menu_bar_set_property;
 124
 125   widget_class->get_preferred_width = gtk_menu_bar_get_preferred_width;
 126   widget_class->get_preferred_height = gtk_menu_bar_get_preferred_height;
 127   widget_class->get_preferred_width_for_height = gtk_menu_bar_get_preferred_width_for_height;
 128   widget_class->get_preferred_height_for_width = gtk_menu_bar_get_preferred_height_for_width;
 129   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 130   widget_class->draw = gtk_menu_bar_draw;
 131   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 132
 133   gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_MENU_BAR);
 134
 135   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 136   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 137   menu_shell_class->move_current = gtk_menu_bar_move_current;
 138
 139   binding_set = gtk_binding_set_by_class (class);
 140   gtk_binding_entry_add_signal (binding_set,
 141                                 GDK_KEY_Left, 0,
 142                                 "move-current", 1,
 143                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 144                                 GTK_MENU_DIR_PREV);
 145   gtk_binding_entry_add_signal (binding_set,
 146                                 GDK_KEY_KP_Left, 0,
 147                                 "move-current", 1,
 148                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 149                                 GTK_MENU_DIR_PREV);
 150   gtk_binding_entry_add_signal (binding_set,
 151                                 GDK_KEY_Right, 0,
 152                                 "move-current", 1,
 153                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 154                                 GTK_MENU_DIR_NEXT);
 155   gtk_binding_entry_add_signal (binding_set,
 156                                 GDK_KEY_KP_Right, 0,
 157                                 "move-current", 1,
 158                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 159                                 GTK_MENU_DIR_NEXT);
 160   gtk_binding_entry_add_signal (binding_set,
 161                                 GDK_KEY_Up, 0,
 162                                 "move-current", 1,
 163                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 164                                 GTK_MENU_DIR_PARENT);
 165   gtk_binding_entry_add_signal (binding_set,
 166                                 GDK_KEY_KP_Up, 0,
 167                                 "move-current", 1,
 168                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 169                                 GTK_MENU_DIR_PARENT);
 170   gtk_binding_entry_add_signal (binding_set,
 171                                 GDK_KEY_Down, 0,
 172                                 "move-current", 1,
 173                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 174                                 GTK_MENU_DIR_CHILD);
 175   gtk_binding_entry_add_signal (binding_set,
 176                                 GDK_KEY_KP_Down, 0,
 177                                 "move-current", 1,
 178                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 179                                 GTK_MENU_DIR_CHILD);
 180
 181   /**
 182    * GtkMenuBar:pack-direction:
 183    *
 184    * The pack direction of the menubar. It determines how
 185    * menuitems are arranged in the menubar.
 186    *
 187    * Since: 2.8
 188    */
 189   g_object_class_install_property (gobject_class,
 190                                    PROP_PACK_DIRECTION,
 191                                    g_param_spec_enum ("pack-direction",
 192                                                       P_("Pack direction"),
 193                                                       P_("The pack direction of the menubar"),
 194                                                       GTK_TYPE_PACK_DIRECTION,
 195                                                       GTK_PACK_DIRECTION_LTR,
 196                                                       GTK_PARAM_READWRITE));
 197
 198   /**
 199    * GtkMenuBar:child-pack-direction:
 200    *
 201    * The child pack direction of the menubar. It determines how
 202    * the widgets contained in child menuitems are arranged.
 203    *
 204    * Since: 2.8
 205    */
 206   g_object_class_install_property (gobject_class,
 207                                    PROP_CHILD_PACK_DIRECTION,
 208                                    g_param_spec_enum ("child-pack-direction",
 209                                                       P_("Child Pack direction"),
 210                                                       P_("The child pack direction of the menubar"),
 211                                                       GTK_TYPE_PACK_DIRECTION,
 212                                                       GTK_PACK_DIRECTION_LTR,
 213                                                       GTK_PARAM_READWRITE));
 214
 215
 216   gtk_widget_class_install_style_property (widget_class,
 217                                            g_param_spec_enum ("shadow-type",
 218                                                               P_("Shadow type"),
 219                                                               P_("Style of bevel around the menubar"),
 220                                                               GTK_TYPE_SHADOW_TYPE,
 221                                                               GTK_SHADOW_OUT,
 222                                                               GTK_PARAM_READABLE));
 223
 224   gtk_widget_class_install_style_property (widget_class,
 225                                            g_param_spec_int ("internal-padding",
 226                                                              P_("Internal padding"),
 227                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 228                                                              0,
 229                                                              G_MAXINT,
 230                                                              DEFAULT_IPADDING,
 231                                                              GTK_PARAM_READABLE));
 232
 233   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 234 }
 235
 236 static void
 237 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 238 {
 239   GtkStyleContext *context;
 240
 241   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 242                                                 GTK_TYPE_MENU_BAR,
 243                                                 GtkMenuBarPrivate);
 244
 245   context = gtk_widget_get_style_context (GTK_WIDGET (menu_bar));
 246   gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUBAR);
 247 }
 248
 249 /**
 250  * gtk_menu_bar_new:
 251  *
 252  * Creates a new #GtkMenuBar
 253  *
 254  * Returns: the new menu bar, as a #GtkWidget
 255  */
 256 GtkWidget*
 257 gtk_menu_bar_new (void)
 258 {
 259   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 260 }
 261
 262 static void
 263 gtk_menu_bar_set_property (GObject      *object,
 264                            guint         prop_id,
 265                            const GValue *value,
 266                            GParamSpec   *pspec)
 267 {
 268   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 269
 270   switch (prop_id)
 271     {
 272     case PROP_PACK_DIRECTION:
 273       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 274       break;
 275     case PROP_CHILD_PACK_DIRECTION:
 276       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 277       break;
 278     default:
 279       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 280       break;
 281     }
 282 }
 283
 284 static void
 285 gtk_menu_bar_get_property (GObject    *object,
 286                            guint       prop_id,
 287                            GValue     *value,
 288                            GParamSpec *pspec)
 289 {
 290   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 291
 292   switch (prop_id)
 293     {
 294     case PROP_PACK_DIRECTION:
 295       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 296       break;
 297     case PROP_CHILD_PACK_DIRECTION:
 298       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 299       break;
 300     default:
 301       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 302       break;
 303     }
 304 }
 305
 306 static void
 307 get_preferred_size_for_size (GtkWidget      *widget,
 308                              GtkOrientation  orientation,
 309                              gint            size,
 310                              gint           *minimum,
 311                              gint           *natural)
 312 {
 313   if (orientation == GTK_ORIENTATION_HORIZONTAL)
 314     if (size < 0)
 315       gtk_widget_get_preferred_width (widget, minimum, natural);
 316     else
 317       gtk_widget_get_preferred_width_for_height (widget, size, minimum, natural);
 318   else
 319     if (size < 0)
 320       gtk_widget_get_preferred_height (widget, minimum, natural);
 321     else
 322       gtk_widget_get_preferred_height_for_width (widget, size, minimum, natural);
 323 }
 324
 325 static void
 326 gtk_menu_bar_size_request (GtkWidget      *widget,
 327                            GtkOrientation  orientation,
 328                            gint            size,
 329                            gint           *minimum,
 330                            gint           *natural)
 331 {
 332   GtkMenuBar *menu_bar;
 333   GtkMenuBarPrivate *priv;
 334   GtkMenuShell *menu_shell;
 335   GtkWidget *child;
 336   GList *children;
 337   gint ipadding;
 338   guint border_width;
 339   gboolean use_toggle_size, use_maximize;
 340   gint child_minimum, child_natural;
 341
 342   *minimum = 0;
 343   *natural = 0;
 344
 345   menu_bar = GTK_MENU_BAR (widget);
 346   menu_shell = GTK_MENU_SHELL (widget);
 347   priv = menu_bar->priv;
 348
 349   children = menu_shell->priv->children;
 350
 351   if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 352       priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 353     use_toggle_size = (orientation == GTK_ORIENTATION_HORIZONTAL);
 354   else
 355     use_toggle_size = (orientation == GTK_ORIENTATION_VERTICAL);
 356
 357   if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 358       priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 359     use_maximize = (orientation == GTK_ORIENTATION_VERTICAL);
 360   else
 361     use_maximize = (orientation == GTK_ORIENTATION_HORIZONTAL);
 362
 363   while (children)
 364     {
 365       child = children->data;
 366       children = children->next;
 367
 368       if (gtk_widget_get_visible (child))
 369         {
 370           get_preferred_size_for_size (child, orientation, size, &child_minimum, &child_natural);
 371
 372           if (use_toggle_size)
 373             {
 374               gint toggle_size;
 375
 376               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 377                                                  &toggle_size);
 378
 379               child_minimum += toggle_size;
 380               child_natural += toggle_size;
 381             }
 382
 383           if (use_maximize)
 384             {
 385               *minimum = MAX (*minimum, child_minimum);
 386               *natural = MAX (*natural, child_natural);
 387             }
 388           else
 389             {
 390               *minimum += child_minimum;
 391               *natural += child_natural;
 392             }
 393         }
 394     }
 395
 396   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 397   border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 398   *minimum += (border_width + ipadding + BORDER_SPACING) * 2;
 399   *natural += (border_width + ipadding + BORDER_SPACING) * 2;
 400
 401   if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 402     {
 403       GtkStyleContext *context;
 404       GtkBorder border;
 405
 406       context = gtk_widget_get_style_context (widget);
 407       gtk_style_context_get_border (context, gtk_widget_get_state_flags (widget),
 408                                     &border);
 409
 410       if (orientation == GTK_ORIENTATION_HORIZONTAL)
 411         {
 412           *minimum += border.left + border.right;
 413           *natural += border.left + border.right;
 414         }
 415       else
 416         {
 417           *minimum += border.top + border.bottom;
 418           *natural += border.top + border.bottom;
 419         }
 420     }
 421 }
 422
 423 static void
 424 gtk_menu_bar_get_preferred_width (GtkWidget *widget,
 425                                   gint      *minimum,
 426                                   gint      *natural)
 427 {
 428   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_HORIZONTAL, -1, minimum, natural);
 429 }
 430
 431 static void
 432 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 433                                    gint      *minimum,
 434                                    gint      *natural)
 435 {
 436   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_VERTICAL, -1, minimum, natural);
 437 }
 438
 439 static void
 440 gtk_menu_bar_get_preferred_width_for_height (GtkWidget *widget,
 441                                              gint       height,
 442                                              gint      *minimum,
 443                                              gint      *natural)
 444 {
 445   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_HORIZONTAL, height, minimum, natural);
 446 }
 447
 448 static void
 449 gtk_menu_bar_get_preferred_height_for_width (GtkWidget *widget,
 450                                              gint       width,
 451                                              gint      *minimum,
 452                                              gint      *natural)
 453 {
 454   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_VERTICAL, width, minimum, natural);
 455 }
 456
 457 static void
 458 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 459                             GtkAllocation *allocation)
 460 {
 461   GtkMenuBar *menu_bar;
 462   GtkMenuShell *menu_shell;
 463   GtkMenuBarPrivate *priv;
 464   GtkWidget *child;
 465   GList *children;
 466   GtkAllocation remaining_space;
 467   gint ipadding;
 468   guint border_width;
 469   GArray *requested_sizes;
 470   gint toggle_size;
 471   guint i;
 472
 473   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 474   g_return_if_fail (allocation != NULL);
 475
 476   menu_bar = GTK_MENU_BAR (widget);
 477   menu_shell = GTK_MENU_SHELL (widget);
 478   priv = menu_bar->priv;
 479
 480   gtk_widget_set_allocation (widget, allocation);
 481
 482   if (gtk_widget_get_realized (widget))
 483     gdk_window_move_resize (gtk_widget_get_window (widget),
 484                             allocation->x, allocation->y,
 485                             allocation->width, allocation->height);
 486
 487   if (menu_shell->priv->children)
 488     {
 489       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 490
 491       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 492       remaining_space.x = (border_width +
 493                             ipadding +
 494                             BORDER_SPACING);
 495       remaining_space.y = (border_width +
 496                             ipadding +
 497                             BORDER_SPACING);
 498       remaining_space.width = allocation->width -
 499                                2 * (border_width + ipadding + BORDER_SPACING);
 500       remaining_space.height = allocation->height -
 501                                 2 * (border_width + ipadding + BORDER_SPACING);
 502
 503       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 504         {
 505           GtkStyleContext *context;
 506           GtkBorder border;
 507
 508           context = gtk_widget_get_style_context (widget);
 509           gtk_style_context_get_border (context, gtk_widget_get_state_flags (widget),
 510                                         &border);
 511
 512           remaining_space.x += border.left;
 513           remaining_space.y += border.top;
 514           remaining_space.width -= border.left + border.right;
 515           remaining_space.height -= border.top + border.bottom;
 516         }
 517
 518       requested_sizes = g_array_new (FALSE, FALSE, sizeof (GtkRequestedSize));
 519
 520       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 521           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 522         {
 523           int size = remaining_space.width;
 524           gboolean ltr = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR);
 525
 526           for (children = menu_shell->priv->children; children; children = children->next)
 527             {
 528               GtkRequestedSize request;
 529               child = children->data;
 530
 531               if (!gtk_widget_get_visible (child))
 532                 continue;
 533
 534               request.data = child;
 535               gtk_widget_get_preferred_width_for_height (child,
 536                                                          remaining_space.height,
 537                                                          &request.minimum_size,
 538                                                          &request.natural_size);
 539               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 540                                                  &toggle_size);
 541               request.minimum_size += toggle_size;
 542               request.natural_size += toggle_size;
 543
 544               gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child), toggle_size);
 545
 546               g_array_append_val (requested_sizes, request);
 547
 548               size -= request.minimum_size;
 549             }
 550
 551           size = gtk_distribute_natural_allocation (size,
 552                                                     requested_sizes->len,
 553                                                     (GtkRequestedSize *) requested_sizes->data);
 554
 555           for (i = 0; i < requested_sizes->len; i++)
 556             {
 557               GtkAllocation child_allocation = remaining_space;
 558               GtkRequestedSize *request = &g_array_index (requested_sizes, GtkRequestedSize, i);
 559
 560               child_allocation.width = request->minimum_size;
 561               remaining_space.width -= request->minimum_size;
 562
 563               if (i + 1 == requested_sizes->len && GTK_IS_MENU_ITEM (request->data) &&
 564                   GTK_MENU_ITEM (request->data)->priv->right_justify)
 565                 ltr = !ltr;
 566
 567               if (ltr)
 568                 remaining_space.x += request->minimum_size;
 569               else
 570                 child_allocation.x += remaining_space.width;
 571
 572               gtk_widget_size_allocate (request->data, &child_allocation);
 573             }
 574         }
 575       else
 576         {
 577           int size = remaining_space.height;
 578           gboolean ttb = (priv->pack_direction == GTK_PACK_DIRECTION_TTB);
 579
 580           for (children = menu_shell->priv->children; children; children = children->next)
 581             {
 582               GtkRequestedSize request;
 583               child = children->data;
 584
 585               if (!gtk_widget_get_visible (child))
 586                 continue;
 587
 588               request.data = child;
 589               gtk_widget_get_preferred_height_for_width (child,
 590                                                          remaining_space.width,
 591                                                          &request.minimum_size,
 592                                                          &request.natural_size);
 593               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 594                                                  &toggle_size);
 595               request.minimum_size += toggle_size;
 596               request.natural_size += toggle_size;
 597
 598               gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child), toggle_size);
 599
 600               g_array_append_val (requested_sizes, request);
 601
 602               size -= request.minimum_size;
 603             }
 604
 605           size = gtk_distribute_natural_allocation (size,
 606                                                     requested_sizes->len,
 607                                                     (GtkRequestedSize *) requested_sizes->data);
 608
 609           for (i = 0; i < requested_sizes->len; i++)
 610             {
 611               GtkAllocation child_allocation = remaining_space;
 612               GtkRequestedSize *request = &g_array_index (requested_sizes, GtkRequestedSize, i);
 613
 614               child_allocation.height = request->minimum_size;
 615               remaining_space.height -= request->minimum_size;
 616
 617               if (i + 1 == requested_sizes->len && GTK_IS_MENU_ITEM (request->data) &&
 618                   GTK_MENU_ITEM (request->data)->priv->right_justify)
 619                 ttb = !ttb;
 620
 621               if (ttb)
 622                 remaining_space.y += request->minimum_size;
 623               else
 624                 child_allocation.y += remaining_space.height;
 625
 626               gtk_widget_size_allocate (request->data, &child_allocation);
 627             }
 628         }
 629
 630       g_array_free (requested_sizes, TRUE);
 631     }
 632 }
 633
 634 static gint
 635 gtk_menu_bar_draw (GtkWidget *widget,
 636                    cairo_t   *cr)
 637 {
 638   GtkStyleContext *context;
 639   int border;
 640
 641   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 642   context = gtk_widget_get_style_context (widget);
 643
 644   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 645     gtk_render_background (context, cr,
 646                            border, border,
 647                            gtk_widget_get_allocated_width (widget) - border * 2,
 648                            gtk_widget_get_allocated_height (widget) - border * 2);
 649
 650   gtk_render_frame (context, cr,
 651                     border, border,
 652                     gtk_widget_get_allocated_width (widget) - border * 2,
 653                     gtk_widget_get_allocated_height (widget) - border * 2);
 654
 655   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 656
 657   return FALSE;
 658 }
 659
 660 static GList *
 661 get_menu_bars (GtkWindow *window)
 662 {
 663   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 664 }
 665
 666 static GList *
 667 get_viewable_menu_bars (GtkWindow *window)
 668 {
 669   GList *menu_bars;
 670   GList *viewable_menu_bars = NULL;
 671
 672   for (menu_bars = get_menu_bars (window);
 673        menu_bars;
 674        menu_bars = menu_bars->next)
 675     {
 676       GtkWidget *widget = menu_bars->data;
 677       gboolean viewable = TRUE;
 678
 679       while (widget)
 680         {
 681           if (!gtk_widget_get_mapped (widget))
 682             viewable = FALSE;
 683
 684           widget = gtk_widget_get_parent (widget);
 685         }
 686
 687       if (viewable)
 688         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 689     }
 690
 691   return g_list_reverse (viewable_menu_bars);
 692 }
 693
 694 static void
 695 set_menu_bars (GtkWindow *window,
 696                GList     *menubars)
 697 {
 698   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 699 }
 700
 701 static gboolean
 702 window_key_press_handler (GtkWidget   *widget,
 703                           GdkEventKey *event,
 704                           gpointer     data)
 705 {
 706   gchar *accel = NULL;
 707   gboolean retval = FALSE;
 708
 709   g_object_get (gtk_widget_get_settings (widget),
 710                 "gtk-menu-bar-accel", &accel,
 711                 NULL);
 712
 713   if (accel && *accel)
 714     {
 715       guint keyval = 0;
 716       GdkModifierType mods = 0;
 717
 718       gtk_accelerator_parse (accel, &keyval, &mods);
 719
 720       if (keyval == 0)
 721         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 722
 723       /* FIXME this is wrong, needs to be in the global accel resolution
 724        * thing, to properly consider i18n etc., but that probably requires
 725        * AccelGroup changes etc.
 726        */
 727       if (event->keyval == keyval &&
 728           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 729            (mods & gtk_accelerator_get_default_mod_mask ())))
 730         {
 731           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 732           GList *menubars;
 733
 734           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 735                                                 GTK_DIR_TAB_FORWARD, NULL);
 736           g_list_free (tmp_menubars);
 737
 738           if (menubars)
 739             {
 740               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 741
 742               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 743               gtk_menu_shell_select_first (menu_shell, FALSE);
 744
 745               g_list_free (menubars);
 746
 747               retval = TRUE;
 748             }
 749         }
 750     }
 751
 752   g_free (accel);
 753
 754   return retval;
 755 }
 756
 757 static void
 758 add_to_window (GtkWindow  *window,
 759                GtkMenuBar *menubar)
 760 {
 761   GList *menubars = get_menu_bars (window);
 762
 763   if (!menubars)
 764     {
 765       g_signal_connect (window,
 766                         "key-press-event",
 767                         G_CALLBACK (window_key_press_handler),
 768                         NULL);
 769     }
 770
 771   set_menu_bars (window, g_list_prepend (menubars, menubar));
 772 }
 773
 774 static void
 775 remove_from_window (GtkWindow  *window,
 776                     GtkMenuBar *menubar)
 777 {
 778   GList *menubars = get_menu_bars (window);
 779
 780   menubars = g_list_remove (menubars, menubar);
 781
 782   if (!menubars)
 783     {
 784       g_signal_handlers_disconnect_by_func (window,
 785                                             window_key_press_handler,
 786                                             NULL);
 787     }
 788
 789   set_menu_bars (window, menubars);
 790 }
 791
 792 static void
 793 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 794                                 GtkWidget *old_toplevel)
 795 {
 796   GtkWidget *toplevel;
 797   GtkMenuBar *menubar;
 798
 799   menubar = GTK_MENU_BAR (widget);
 800
 801   toplevel = gtk_widget_get_toplevel (widget);
 802
 803   if (old_toplevel)
 804     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 805
 806   if (gtk_widget_is_toplevel (toplevel))
 807     add_to_window (GTK_WINDOW (toplevel), menubar);
 808 }
 809
 810 /**
 811  * _gtk_menu_bar_cycle_focus:
 812  * @menubar: a #GtkMenuBar
 813  * @dir: direction in which to cycle the focus
 814  *
 815  * Move the focus between menubars in the toplevel.
 816  **/
 817 void
 818 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 819                            GtkDirectionType  dir)
 820 {
 821   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 822   GtkMenuItem *to_activate = NULL;
 823
 824   if (gtk_widget_is_toplevel (toplevel))
 825     {
 826       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 827       GList *menubars;
 828       GList *current;
 829
 830       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 831                                             dir, GTK_WIDGET (menubar));
 832       g_list_free (tmp_menubars);
 833
 834       if (menubars)
 835         {
 836           current = g_list_find (menubars, menubar);
 837
 838           if (current && current->next)
 839             {
 840               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 841               if (new_menushell->priv->children)
 842                 to_activate = new_menushell->priv->children->data;
 843             }
 844         }
 845
 846       g_list_free (menubars);
 847     }
 848
 849   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 850
 851   if (to_activate)
 852     g_signal_emit_by_name (to_activate, "activate_item");
 853 }
 854
 855 static GtkShadowType
 856 get_shadow_type (GtkMenuBar *menubar)
 857 {
 858   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 859
 860   gtk_widget_style_get (GTK_WIDGET (menubar),
 861                         "shadow-type", &shadow_type,
 862                         NULL);
 863
 864   return shadow_type;
 865 }
 866
 867 static gint
 868 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 869 {
 870   gint popup_delay;
 871
 872   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 873                 "gtk-menu-bar-popup-delay", &popup_delay,
 874                 NULL);
 875
 876   return popup_delay;
 877 }
 878
 879 static void
 880 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 881                            GtkMenuDirectionType  direction)
 882 {
 883   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 884   GtkTextDirection text_dir;
 885   GtkPackDirection pack_dir;
 886
 887   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 888   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 889
 890   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 891      {
 892       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 893         {
 894           switch (direction)
 895             {
 896             case GTK_MENU_DIR_PREV:
 897               direction = GTK_MENU_DIR_NEXT;
 898               break;
 899             case GTK_MENU_DIR_NEXT:
 900               direction = GTK_MENU_DIR_PREV;
 901               break;
 902             default: ;
 903             }
 904         }
 905     }
 906   else
 907     {
 908       switch (direction)
 909         {
 910         case GTK_MENU_DIR_PARENT:
 911           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 912             direction = GTK_MENU_DIR_PREV;
 913           else
 914             direction = GTK_MENU_DIR_NEXT;
 915           break;
 916         case GTK_MENU_DIR_CHILD:
 917           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 918             direction = GTK_MENU_DIR_NEXT;
 919           else
 920             direction = GTK_MENU_DIR_PREV;
 921           break;
 922         case GTK_MENU_DIR_PREV:
 923           if (text_dir == GTK_TEXT_DIR_RTL)
 924             direction = GTK_MENU_DIR_CHILD;
 925           else
 926             direction = GTK_MENU_DIR_PARENT;
 927           break;
 928         case GTK_MENU_DIR_NEXT:
 929           if (text_dir == GTK_TEXT_DIR_RTL)
 930             direction = GTK_MENU_DIR_PARENT;
 931           else
 932             direction = GTK_MENU_DIR_CHILD;
 933           break;
 934         default: ;
 935         }
 936     }
 937
 938   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 939 }
 940
 941 /**
 942  * gtk_menu_bar_get_pack_direction:
 943  * @menubar: a #GtkMenuBar
 944  *
 945  * Retrieves the current pack direction of the menubar.
 946  * See gtk_menu_bar_set_pack_direction().
 947  *
 948  * Return value: the pack direction
 949  *
 950  * Since: 2.8
 951  */
 952 GtkPackDirection
 953 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 954 {
 955   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 956                         GTK_PACK_DIRECTION_LTR);
 957
 958   return menubar->priv->pack_direction;
 959 }
 960
 961 /**
 962  * gtk_menu_bar_set_pack_direction:
 963  * @menubar: a #GtkMenuBar
 964  * @pack_dir: a new #GtkPackDirection
 965  *
 966  * Sets how items should be packed inside a menubar.
 967  *
 968  * Since: 2.8
 969  */
 970 void
 971 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 972                                  GtkPackDirection  pack_dir)
 973 {
 974   GtkMenuBarPrivate *priv;
 975   GList *l;
 976
 977   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 978
 979   priv = menubar->priv;
 980
 981   if (priv->pack_direction != pack_dir)
 982     {
 983       priv->pack_direction = pack_dir;
 984
 985       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 986
 987       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 988         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 989
 990       g_object_notify (G_OBJECT (menubar), "pack-direction");
 991     }
 992 }
 993
 994 /**
 995  * gtk_menu_bar_get_child_pack_direction:
 996  * @menubar: a #GtkMenuBar
 997  *
 998  * Retrieves the current child pack direction of the menubar.
 999  * See gtk_menu_bar_set_child_pack_direction().
1000  *
1001  * Return value: the child pack direction
1002  *
1003  * Since: 2.8
1004  */
1005 GtkPackDirection
1006 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
1007 {
1008   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
1009                         GTK_PACK_DIRECTION_LTR);
1010
1011   return menubar->priv->child_pack_direction;
1012 }
1013
1014 /**
1015  * gtk_menu_bar_set_child_pack_direction:
1016  * @menubar: a #GtkMenuBar
1017  * @child_pack_dir: a new #GtkPackDirection
1018  *
1019  * Sets how widgets should be packed inside the children of a menubar.
1020  *
1021  * Since: 2.8
1022  */
1023 void
1024 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
1025                                        GtkPackDirection  child_pack_dir)
1026 {
1027   GtkMenuBarPrivate *priv;
1028   GList *l;
1029
1030   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
1031
1032   priv = menubar->priv;
1033
1034   if (priv->child_pack_direction != child_pack_dir)
1035     {
1036       priv->child_pack_direction = child_pack_dir;
1037
1038       gtk_widget_queue_resize (GTK_WIDGET (menubar));
1039
1040       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
1041         gtk_widget_queue_resize (GTK_WIDGET (l->data));
1042
1043       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
1044     }
1045 }