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   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 134   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 135   menu_shell_class->move_current = gtk_menu_bar_move_current;
 136
 137   binding_set = gtk_binding_set_by_class (class);
 138   gtk_binding_entry_add_signal (binding_set,
 139                                 GDK_KEY_Left, 0,
 140                                 "move-current", 1,
 141                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 142                                 GTK_MENU_DIR_PREV);
 143   gtk_binding_entry_add_signal (binding_set,
 144                                 GDK_KEY_KP_Left, 0,
 145                                 "move-current", 1,
 146                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 147                                 GTK_MENU_DIR_PREV);
 148   gtk_binding_entry_add_signal (binding_set,
 149                                 GDK_KEY_Right, 0,
 150                                 "move-current", 1,
 151                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 152                                 GTK_MENU_DIR_NEXT);
 153   gtk_binding_entry_add_signal (binding_set,
 154                                 GDK_KEY_KP_Right, 0,
 155                                 "move-current", 1,
 156                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 157                                 GTK_MENU_DIR_NEXT);
 158   gtk_binding_entry_add_signal (binding_set,
 159                                 GDK_KEY_Up, 0,
 160                                 "move-current", 1,
 161                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 162                                 GTK_MENU_DIR_PARENT);
 163   gtk_binding_entry_add_signal (binding_set,
 164                                 GDK_KEY_KP_Up, 0,
 165                                 "move-current", 1,
 166                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 167                                 GTK_MENU_DIR_PARENT);
 168   gtk_binding_entry_add_signal (binding_set,
 169                                 GDK_KEY_Down, 0,
 170                                 "move-current", 1,
 171                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 172                                 GTK_MENU_DIR_CHILD);
 173   gtk_binding_entry_add_signal (binding_set,
 174                                 GDK_KEY_KP_Down, 0,
 175                                 "move-current", 1,
 176                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 177                                 GTK_MENU_DIR_CHILD);
 178
 179   /**
 180    * GtkMenuBar:pack-direction:
 181    *
 182    * The pack direction of the menubar. It determines how
 183    * menuitems are arranged in the menubar.
 184    *
 185    * Since: 2.8
 186    */
 187   g_object_class_install_property (gobject_class,
 188                                    PROP_PACK_DIRECTION,
 189                                    g_param_spec_enum ("pack-direction",
 190                                                       P_("Pack direction"),
 191                                                       P_("The pack direction of the menubar"),
 192                                                       GTK_TYPE_PACK_DIRECTION,
 193                                                       GTK_PACK_DIRECTION_LTR,
 194                                                       GTK_PARAM_READWRITE));
 195
 196   /**
 197    * GtkMenuBar:child-pack-direction:
 198    *
 199    * The child pack direction of the menubar. It determines how
 200    * the widgets contained in child menuitems are arranged.
 201    *
 202    * Since: 2.8
 203    */
 204   g_object_class_install_property (gobject_class,
 205                                    PROP_CHILD_PACK_DIRECTION,
 206                                    g_param_spec_enum ("child-pack-direction",
 207                                                       P_("Child Pack direction"),
 208                                                       P_("The child pack direction of the menubar"),
 209                                                       GTK_TYPE_PACK_DIRECTION,
 210                                                       GTK_PACK_DIRECTION_LTR,
 211                                                       GTK_PARAM_READWRITE));
 212
 213
 214   gtk_widget_class_install_style_property (widget_class,
 215                                            g_param_spec_enum ("shadow-type",
 216                                                               P_("Shadow type"),
 217                                                               P_("Style of bevel around the menubar"),
 218                                                               GTK_TYPE_SHADOW_TYPE,
 219                                                               GTK_SHADOW_OUT,
 220                                                               GTK_PARAM_READABLE));
 221
 222   gtk_widget_class_install_style_property (widget_class,
 223                                            g_param_spec_int ("internal-padding",
 224                                                              P_("Internal padding"),
 225                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 226                                                              0,
 227                                                              G_MAXINT,
 228                                                              DEFAULT_IPADDING,
 229                                                              GTK_PARAM_READABLE));
 230
 231   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 232 }
 233
 234 static void
 235 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 236 {
 237   GtkStyleContext *context;
 238
 239   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 240                                                 GTK_TYPE_MENU_BAR,
 241                                                 GtkMenuBarPrivate);
 242
 243   context = gtk_widget_get_style_context (GTK_WIDGET (menu_bar));
 244   gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUBAR);
 245 }
 246
 247 /**
 248  * gtk_menu_bar_new:
 249  *
 250  * Creates a new #GtkMenuBar
 251  *
 252  * Returns: the new menu bar, as a #GtkWidget
 253  */
 254 GtkWidget*
 255 gtk_menu_bar_new (void)
 256 {
 257   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 258 }
 259
 260 static void
 261 gtk_menu_bar_set_property (GObject      *object,
 262                            guint         prop_id,
 263                            const GValue *value,
 264                            GParamSpec   *pspec)
 265 {
 266   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 267
 268   switch (prop_id)
 269     {
 270     case PROP_PACK_DIRECTION:
 271       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 272       break;
 273     case PROP_CHILD_PACK_DIRECTION:
 274       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 275       break;
 276     default:
 277       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 278       break;
 279     }
 280 }
 281
 282 static void
 283 gtk_menu_bar_get_property (GObject    *object,
 284                            guint       prop_id,
 285                            GValue     *value,
 286                            GParamSpec *pspec)
 287 {
 288   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 289
 290   switch (prop_id)
 291     {
 292     case PROP_PACK_DIRECTION:
 293       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 294       break;
 295     case PROP_CHILD_PACK_DIRECTION:
 296       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 297       break;
 298     default:
 299       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 300       break;
 301     }
 302 }
 303
 304 static void
 305 get_preferred_size_for_size (GtkWidget      *widget,
 306                              GtkOrientation  orientation,
 307                              gint            size,
 308                              gint           *minimum,
 309                              gint           *natural)
 310 {
 311   if (orientation == GTK_ORIENTATION_HORIZONTAL)
 312     if (size < 0)
 313       gtk_widget_get_preferred_width (widget, minimum, natural);
 314     else
 315       gtk_widget_get_preferred_width_for_height (widget, size, minimum, natural);
 316   else
 317     if (size < 0)
 318       gtk_widget_get_preferred_height (widget, minimum, natural);
 319     else
 320       gtk_widget_get_preferred_height_for_width (widget, size, minimum, natural);
 321 }
 322
 323 static void
 324 gtk_menu_bar_size_request (GtkWidget      *widget,
 325                            GtkOrientation  orientation,
 326                            gint            size,
 327                            gint           *minimum,
 328                            gint           *natural)
 329 {
 330   GtkMenuBar *menu_bar;
 331   GtkMenuBarPrivate *priv;
 332   GtkMenuShell *menu_shell;
 333   GtkWidget *child;
 334   GList *children;
 335   gint ipadding;
 336   guint border_width;
 337   gboolean use_toggle_size, use_maximize;
 338   gint child_minimum, child_natural;
 339
 340   *minimum = 0;
 341   *natural = 0;
 342
 343   menu_bar = GTK_MENU_BAR (widget);
 344   menu_shell = GTK_MENU_SHELL (widget);
 345   priv = menu_bar->priv;
 346
 347   children = menu_shell->priv->children;
 348
 349   if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 350       priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 351     use_toggle_size = (orientation == GTK_ORIENTATION_HORIZONTAL);
 352   else
 353     use_toggle_size = (orientation == GTK_ORIENTATION_VERTICAL);
 354
 355   if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 356       priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 357     use_maximize = (orientation == GTK_ORIENTATION_VERTICAL);
 358   else
 359     use_maximize = (orientation == GTK_ORIENTATION_HORIZONTAL);
 360
 361   while (children)
 362     {
 363       child = children->data;
 364       children = children->next;
 365
 366       if (gtk_widget_get_visible (child))
 367         {
 368           get_preferred_size_for_size (child, orientation, size, &child_minimum, &child_natural);
 369
 370           if (use_toggle_size)
 371             {
 372               gint toggle_size;
 373
 374               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 375                                                  &toggle_size);
 376
 377               child_minimum += toggle_size;
 378               child_natural += toggle_size;
 379             }
 380
 381           if (use_maximize)
 382             {
 383               *minimum = MAX (*minimum, child_minimum);
 384               *natural = MAX (*natural, child_natural);
 385             }
 386           else
 387             {
 388               *minimum += child_minimum;
 389               *natural += child_natural;
 390             }
 391         }
 392     }
 393
 394   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 395   border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 396   *minimum += (border_width + ipadding + BORDER_SPACING) * 2;
 397   *natural += (border_width + ipadding + BORDER_SPACING) * 2;
 398
 399   if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 400     {
 401       GtkStyleContext *context;
 402       GtkBorder border;
 403
 404       context = gtk_widget_get_style_context (widget);
 405       gtk_style_context_get_border (context, gtk_widget_get_state_flags (widget),
 406                                     &border);
 407
 408       if (orientation == GTK_ORIENTATION_HORIZONTAL)
 409         {
 410           *minimum += border.left + border.right;
 411           *natural += border.left + border.right;
 412         }
 413       else
 414         {
 415           *minimum += border.top + border.bottom;
 416           *natural += border.top + border.bottom;
 417         }
 418     }
 419 }
 420
 421 static void
 422 gtk_menu_bar_get_preferred_width (GtkWidget *widget,
 423                                   gint      *minimum,
 424                                   gint      *natural)
 425 {
 426   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_HORIZONTAL, -1, minimum, natural);
 427 }
 428
 429 static void
 430 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 431                                    gint      *minimum,
 432                                    gint      *natural)
 433 {
 434   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_VERTICAL, -1, minimum, natural);
 435 }
 436
 437 static void
 438 gtk_menu_bar_get_preferred_width_for_height (GtkWidget *widget,
 439                                              gint       height,
 440                                              gint      *minimum,
 441                                              gint      *natural)
 442 {
 443   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_HORIZONTAL, height, minimum, natural);
 444 }
 445
 446 static void
 447 gtk_menu_bar_get_preferred_height_for_width (GtkWidget *widget,
 448                                              gint       width,
 449                                              gint      *minimum,
 450                                              gint      *natural)
 451 {
 452   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_VERTICAL, width, minimum, natural);
 453 }
 454
 455 static void
 456 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 457                             GtkAllocation *allocation)
 458 {
 459   GtkMenuBar *menu_bar;
 460   GtkMenuShell *menu_shell;
 461   GtkMenuBarPrivate *priv;
 462   GtkWidget *child;
 463   GList *children;
 464   GtkAllocation remaining_space;
 465   gint ipadding;
 466   guint border_width;
 467   GArray *requested_sizes;
 468   gint toggle_size;
 469   guint i;
 470
 471   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 472   g_return_if_fail (allocation != NULL);
 473
 474   menu_bar = GTK_MENU_BAR (widget);
 475   menu_shell = GTK_MENU_SHELL (widget);
 476   priv = menu_bar->priv;
 477
 478   gtk_widget_set_allocation (widget, allocation);
 479
 480   if (gtk_widget_get_realized (widget))
 481     gdk_window_move_resize (gtk_widget_get_window (widget),
 482                             allocation->x, allocation->y,
 483                             allocation->width, allocation->height);
 484
 485   if (menu_shell->priv->children)
 486     {
 487       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 488
 489       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 490       remaining_space.x = (border_width +
 491                             ipadding +
 492                             BORDER_SPACING);
 493       remaining_space.y = (border_width +
 494                             ipadding +
 495                             BORDER_SPACING);
 496       remaining_space.width = allocation->width -
 497                                2 * (border_width + ipadding + BORDER_SPACING);
 498       remaining_space.height = allocation->height -
 499                                 2 * (border_width + ipadding + BORDER_SPACING);
 500
 501       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 502         {
 503           GtkStyleContext *context;
 504           GtkBorder border;
 505
 506           context = gtk_widget_get_style_context (widget);
 507           gtk_style_context_get_border (context, gtk_widget_get_state_flags (widget),
 508                                         &border);
 509
 510           remaining_space.x += border.left;
 511           remaining_space.y += border.top;
 512           remaining_space.width -= border.left + border.right;
 513           remaining_space.height -= border.top + border.bottom;
 514         }
 515
 516       requested_sizes = g_array_new (FALSE, FALSE, sizeof (GtkRequestedSize));
 517
 518       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 519           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 520         {
 521           int size = remaining_space.width;
 522           gboolean ltr = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR);
 523
 524           for (children = menu_shell->priv->children; children; children = children->next)
 525             {
 526               GtkRequestedSize request;
 527               child = children->data;
 528
 529               if (!gtk_widget_get_visible (child))
 530                 continue;
 531
 532               request.data = child;
 533               gtk_widget_get_preferred_width_for_height (child,
 534                                                          remaining_space.height,
 535                                                          &request.minimum_size,
 536                                                          &request.natural_size);
 537               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 538                                                  &toggle_size);
 539               request.minimum_size += toggle_size;
 540               request.natural_size += toggle_size;
 541
 542               gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child), toggle_size);
 543
 544               g_array_append_val (requested_sizes, request);
 545
 546               size -= request.minimum_size;
 547             }
 548
 549           size = gtk_distribute_natural_allocation (size,
 550                                                     requested_sizes->len,
 551                                                     (GtkRequestedSize *) requested_sizes->data);
 552
 553           for (i = 0; i < requested_sizes->len; i++)
 554             {
 555               GtkAllocation child_allocation = remaining_space;
 556               GtkRequestedSize *request = &g_array_index (requested_sizes, GtkRequestedSize, i);
 557
 558               child_allocation.width = request->minimum_size;
 559               remaining_space.width -= request->minimum_size;
 560
 561               if (i + 1 == requested_sizes->len && GTK_IS_MENU_ITEM (request->data) &&
 562                   GTK_MENU_ITEM (request->data)->priv->right_justify)
 563                 ltr = !ltr;
 564
 565               if (ltr)
 566                 remaining_space.x += request->minimum_size;
 567               else
 568                 child_allocation.x += remaining_space.width;
 569
 570               gtk_widget_size_allocate (request->data, &child_allocation);
 571             }
 572         }
 573       else
 574         {
 575           int size = remaining_space.height;
 576           gboolean ttb = (priv->pack_direction == GTK_PACK_DIRECTION_TTB);
 577
 578           for (children = menu_shell->priv->children; children; children = children->next)
 579             {
 580               GtkRequestedSize request;
 581               child = children->data;
 582
 583               if (!gtk_widget_get_visible (child))
 584                 continue;
 585
 586               request.data = child;
 587               gtk_widget_get_preferred_height_for_width (child,
 588                                                          remaining_space.width,
 589                                                          &request.minimum_size,
 590                                                          &request.natural_size);
 591               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 592                                                  &toggle_size);
 593               request.minimum_size += toggle_size;
 594               request.natural_size += toggle_size;
 595
 596               gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child), toggle_size);
 597
 598               g_array_append_val (requested_sizes, request);
 599
 600               size -= request.minimum_size;
 601             }
 602
 603           size = gtk_distribute_natural_allocation (size,
 604                                                     requested_sizes->len,
 605                                                     (GtkRequestedSize *) requested_sizes->data);
 606
 607           for (i = 0; i < requested_sizes->len; i++)
 608             {
 609               GtkAllocation child_allocation = remaining_space;
 610               GtkRequestedSize *request = &g_array_index (requested_sizes, GtkRequestedSize, i);
 611
 612               child_allocation.height = request->minimum_size;
 613               remaining_space.height -= request->minimum_size;
 614
 615               if (i + 1 == requested_sizes->len && GTK_IS_MENU_ITEM (request->data) &&
 616                   GTK_MENU_ITEM (request->data)->priv->right_justify)
 617                 ttb = !ttb;
 618
 619               if (ttb)
 620                 remaining_space.y += request->minimum_size;
 621               else
 622                 child_allocation.y += remaining_space.height;
 623
 624               gtk_widget_size_allocate (request->data, &child_allocation);
 625             }
 626         }
 627
 628       g_array_free (requested_sizes, TRUE);
 629     }
 630 }
 631
 632 static gint
 633 gtk_menu_bar_draw (GtkWidget *widget,
 634                    cairo_t   *cr)
 635 {
 636   GtkStyleContext *context;
 637   GtkStateFlags state;
 638   int border;
 639
 640   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 641   context = gtk_widget_get_style_context (widget);
 642
 643   state = gtk_widget_get_state_flags (widget);
 644   gtk_style_context_set_state (context, state);
 645
 646   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 647     gtk_render_background (context, cr,
 648                            border, border,
 649                            gtk_widget_get_allocated_width (widget) - border * 2,
 650                            gtk_widget_get_allocated_height (widget) - border * 2);
 651
 652   gtk_render_frame (context, cr,
 653                     border, border,
 654                     gtk_widget_get_allocated_width (widget) - border * 2,
 655                     gtk_widget_get_allocated_height (widget) - border * 2);
 656
 657   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 658
 659   return FALSE;
 660 }
 661
 662 static GList *
 663 get_menu_bars (GtkWindow *window)
 664 {
 665   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 666 }
 667
 668 static GList *
 669 get_viewable_menu_bars (GtkWindow *window)
 670 {
 671   GList *menu_bars;
 672   GList *viewable_menu_bars = NULL;
 673
 674   for (menu_bars = get_menu_bars (window);
 675        menu_bars;
 676        menu_bars = menu_bars->next)
 677     {
 678       GtkWidget *widget = menu_bars->data;
 679       gboolean viewable = TRUE;
 680
 681       while (widget)
 682         {
 683           if (!gtk_widget_get_mapped (widget))
 684             viewable = FALSE;
 685
 686           widget = gtk_widget_get_parent (widget);
 687         }
 688
 689       if (viewable)
 690         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 691     }
 692
 693   return g_list_reverse (viewable_menu_bars);
 694 }
 695
 696 static void
 697 set_menu_bars (GtkWindow *window,
 698                GList     *menubars)
 699 {
 700   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 701 }
 702
 703 static gboolean
 704 window_key_press_handler (GtkWidget   *widget,
 705                           GdkEventKey *event,
 706                           gpointer     data)
 707 {
 708   gchar *accel = NULL;
 709   gboolean retval = FALSE;
 710
 711   g_object_get (gtk_widget_get_settings (widget),
 712                 "gtk-menu-bar-accel", &accel,
 713                 NULL);
 714
 715   if (accel && *accel)
 716     {
 717       guint keyval = 0;
 718       GdkModifierType mods = 0;
 719
 720       gtk_accelerator_parse (accel, &keyval, &mods);
 721
 722       if (keyval == 0)
 723         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 724
 725       /* FIXME this is wrong, needs to be in the global accel resolution
 726        * thing, to properly consider i18n etc., but that probably requires
 727        * AccelGroup changes etc.
 728        */
 729       if (event->keyval == keyval &&
 730           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 731            (mods & gtk_accelerator_get_default_mod_mask ())))
 732         {
 733           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 734           GList *menubars;
 735
 736           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 737                                                 GTK_DIR_TAB_FORWARD, NULL);
 738           g_list_free (tmp_menubars);
 739
 740           if (menubars)
 741             {
 742               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 743
 744               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 745               gtk_menu_shell_select_first (menu_shell, FALSE);
 746
 747               g_list_free (menubars);
 748
 749               retval = TRUE;
 750             }
 751         }
 752     }
 753
 754   g_free (accel);
 755
 756   return retval;
 757 }
 758
 759 static void
 760 add_to_window (GtkWindow  *window,
 761                GtkMenuBar *menubar)
 762 {
 763   GList *menubars = get_menu_bars (window);
 764
 765   if (!menubars)
 766     {
 767       g_signal_connect (window,
 768                         "key-press-event",
 769                         G_CALLBACK (window_key_press_handler),
 770                         NULL);
 771     }
 772
 773   set_menu_bars (window, g_list_prepend (menubars, menubar));
 774 }
 775
 776 static void
 777 remove_from_window (GtkWindow  *window,
 778                     GtkMenuBar *menubar)
 779 {
 780   GList *menubars = get_menu_bars (window);
 781
 782   menubars = g_list_remove (menubars, menubar);
 783
 784   if (!menubars)
 785     {
 786       g_signal_handlers_disconnect_by_func (window,
 787                                             window_key_press_handler,
 788                                             NULL);
 789     }
 790
 791   set_menu_bars (window, menubars);
 792 }
 793
 794 static void
 795 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 796                                 GtkWidget *old_toplevel)
 797 {
 798   GtkWidget *toplevel;
 799   GtkMenuBar *menubar;
 800
 801   menubar = GTK_MENU_BAR (widget);
 802
 803   toplevel = gtk_widget_get_toplevel (widget);
 804
 805   if (old_toplevel)
 806     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 807
 808   if (gtk_widget_is_toplevel (toplevel))
 809     add_to_window (GTK_WINDOW (toplevel), menubar);
 810 }
 811
 812 /**
 813  * _gtk_menu_bar_cycle_focus:
 814  * @menubar: a #GtkMenuBar
 815  * @dir: direction in which to cycle the focus
 816  *
 817  * Move the focus between menubars in the toplevel.
 818  **/
 819 void
 820 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 821                            GtkDirectionType  dir)
 822 {
 823   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 824   GtkMenuItem *to_activate = NULL;
 825
 826   if (gtk_widget_is_toplevel (toplevel))
 827     {
 828       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 829       GList *menubars;
 830       GList *current;
 831
 832       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 833                                             dir, GTK_WIDGET (menubar));
 834       g_list_free (tmp_menubars);
 835
 836       if (menubars)
 837         {
 838           current = g_list_find (menubars, menubar);
 839
 840           if (current && current->next)
 841             {
 842               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 843               if (new_menushell->priv->children)
 844                 to_activate = new_menushell->priv->children->data;
 845             }
 846         }
 847
 848       g_list_free (menubars);
 849     }
 850
 851   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 852
 853   if (to_activate)
 854     g_signal_emit_by_name (to_activate, "activate_item");
 855 }
 856
 857 static GtkShadowType
 858 get_shadow_type (GtkMenuBar *menubar)
 859 {
 860   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 861
 862   gtk_widget_style_get (GTK_WIDGET (menubar),
 863                         "shadow-type", &shadow_type,
 864                         NULL);
 865
 866   return shadow_type;
 867 }
 868
 869 static gint
 870 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 871 {
 872   gint popup_delay;
 873
 874   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 875                 "gtk-menu-bar-popup-delay", &popup_delay,
 876                 NULL);
 877
 878   return popup_delay;
 879 }
 880
 881 static void
 882 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 883                            GtkMenuDirectionType  direction)
 884 {
 885   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 886   GtkTextDirection text_dir;
 887   GtkPackDirection pack_dir;
 888
 889   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 890   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 891
 892   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 893      {
 894       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 895         {
 896           switch (direction)
 897             {
 898             case GTK_MENU_DIR_PREV:
 899               direction = GTK_MENU_DIR_NEXT;
 900               break;
 901             case GTK_MENU_DIR_NEXT:
 902               direction = GTK_MENU_DIR_PREV;
 903               break;
 904             default: ;
 905             }
 906         }
 907     }
 908   else
 909     {
 910       switch (direction)
 911         {
 912         case GTK_MENU_DIR_PARENT:
 913           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 914             direction = GTK_MENU_DIR_PREV;
 915           else
 916             direction = GTK_MENU_DIR_NEXT;
 917           break;
 918         case GTK_MENU_DIR_CHILD:
 919           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 920             direction = GTK_MENU_DIR_NEXT;
 921           else
 922             direction = GTK_MENU_DIR_PREV;
 923           break;
 924         case GTK_MENU_DIR_PREV:
 925           if (text_dir == GTK_TEXT_DIR_RTL)
 926             direction = GTK_MENU_DIR_CHILD;
 927           else
 928             direction = GTK_MENU_DIR_PARENT;
 929           break;
 930         case GTK_MENU_DIR_NEXT:
 931           if (text_dir == GTK_TEXT_DIR_RTL)
 932             direction = GTK_MENU_DIR_PARENT;
 933           else
 934             direction = GTK_MENU_DIR_CHILD;
 935           break;
 936         default: ;
 937         }
 938     }
 939
 940   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 941 }
 942
 943 /**
 944  * gtk_menu_bar_get_pack_direction:
 945  * @menubar: a #GtkMenuBar
 946  *
 947  * Retrieves the current pack direction of the menubar.
 948  * See gtk_menu_bar_set_pack_direction().
 949  *
 950  * Return value: the pack direction
 951  *
 952  * Since: 2.8
 953  */
 954 GtkPackDirection
 955 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 956 {
 957   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 958                         GTK_PACK_DIRECTION_LTR);
 959
 960   return menubar->priv->pack_direction;
 961 }
 962
 963 /**
 964  * gtk_menu_bar_set_pack_direction:
 965  * @menubar: a #GtkMenuBar
 966  * @pack_dir: a new #GtkPackDirection
 967  *
 968  * Sets how items should be packed inside a menubar.
 969  *
 970  * Since: 2.8
 971  */
 972 void
 973 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 974                                  GtkPackDirection  pack_dir)
 975 {
 976   GtkMenuBarPrivate *priv;
 977   GList *l;
 978
 979   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 980
 981   priv = menubar->priv;
 982
 983   if (priv->pack_direction != pack_dir)
 984     {
 985       priv->pack_direction = pack_dir;
 986
 987       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 988
 989       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 990         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 991
 992       g_object_notify (G_OBJECT (menubar), "pack-direction");
 993     }
 994 }
 995
 996 /**
 997  * gtk_menu_bar_get_child_pack_direction:
 998  * @menubar: a #GtkMenuBar
 999  *
1000  * Retrieves the current child pack direction of the menubar.
1001  * See gtk_menu_bar_set_child_pack_direction().
1002  *
1003  * Return value: the child pack direction
1004  *
1005  * Since: 2.8
1006  */
1007 GtkPackDirection
1008 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
1009 {
1010   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
1011                         GTK_PACK_DIRECTION_LTR);
1012
1013   return menubar->priv->child_pack_direction;
1014 }
1015
1016 /**
1017  * gtk_menu_bar_set_child_pack_direction:
1018  * @menubar: a #GtkMenuBar
1019  * @child_pack_dir: a new #GtkPackDirection
1020  *
1021  * Sets how widgets should be packed inside the children of a menubar.
1022  *
1023  * Since: 2.8
1024  */
1025 void
1026 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
1027                                        GtkPackDirection  child_pack_dir)
1028 {
1029   GtkMenuBarPrivate *priv;
1030   GList *l;
1031
1032   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
1033
1034   priv = menubar->priv;
1035
1036   if (priv->child_pack_direction != child_pack_dir)
1037     {
1038       priv->child_pack_direction = child_pack_dir;
1039
1040       gtk_widget_queue_resize (GTK_WIDGET (menubar));
1041
1042       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
1043         gtk_widget_queue_resize (GTK_WIDGET (l->data));
1044
1045       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
1046     }
1047 }