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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Jsh 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 #include <config.h>
  28 #include "gtkintl.h"
  29 #include "gtkmenu.h"
  30 #include "gtkmenuitem.h"
  31 #include "gtkmarshalers.h"
  32 #include "gdk/gdkkeysyms.h"
  33
  34 #undef GTK_DISABLE_DEPRECATED
  35 #include "gtkoptionmenu.h"
  36 #define GTK_DISABLE_DEPRECATED
  37
  38 #include "gtkalias.h"
  39
  40 #define CHILD_LEFT_SPACING        4
  41 #define CHILD_RIGHT_SPACING       1
  42 #define CHILD_TOP_SPACING         1
  43 #define CHILD_BOTTOM_SPACING      1
  44
  45 typedef struct _GtkOptionMenuProps GtkOptionMenuProps;
  46
  47 struct _GtkOptionMenuProps
  48 {
  49   gboolean interior_focus;
  50   GtkRequisition indicator_size;
  51   GtkBorder indicator_spacing;
  52   gint focus_width;
  53   gint focus_pad;
  54 };
  55
  56 static const GtkOptionMenuProps default_props = {
  57   TRUE,
  58   { 7, 13 },
  59   { 7, 5, 2, 2 },               /* Left, right, top, bottom */
  60   1,
  61   0
  62 };
  63
  64 static void gtk_option_menu_class_init      (GtkOptionMenuClass *klass);
  65 static void gtk_option_menu_init            (GtkOptionMenu      *option_menu);
  66 static void gtk_option_menu_destroy         (GtkObject          *object);
  67 static void gtk_option_menu_set_property    (GObject            *object,
  68                                              guint               prop_id,
  69                                              const GValue       *value,
  70                                              GParamSpec         *pspec);
  71 static void gtk_option_menu_get_property    (GObject            *object,
  72                                              guint               prop_id,
  73                                              GValue             *value,
  74                                              GParamSpec         *pspec);
  75 static void gtk_option_menu_size_request    (GtkWidget          *widget,
  76                                              GtkRequisition     *requisition);
  77 static void gtk_option_menu_size_allocate   (GtkWidget          *widget,
  78                                              GtkAllocation      *allocation);
  79 static void gtk_option_menu_paint           (GtkWidget          *widget,
  80                                              GdkRectangle       *area);
  81 static gint gtk_option_menu_expose          (GtkWidget          *widget,
  82                                              GdkEventExpose     *event);
  83 static gint gtk_option_menu_button_press    (GtkWidget          *widget,
  84                                              GdkEventButton     *event);
  85 static gint gtk_option_menu_key_press       (GtkWidget          *widget,
  86                                              GdkEventKey        *event);
  87 static void gtk_option_menu_selection_done  (GtkMenuShell       *menu_shell,
  88                                              GtkOptionMenu      *option_menu);
  89 static void gtk_option_menu_update_contents (GtkOptionMenu      *option_menu);
  90 static void gtk_option_menu_remove_contents (GtkOptionMenu      *option_menu);
  91 static void gtk_option_menu_calc_size       (GtkOptionMenu      *option_menu);
  92 static void gtk_option_menu_position        (GtkMenu            *menu,
  93                                              gint               *x,
  94                                              gint               *y,
  95                                              gint               *scroll_offet,
  96                                              gpointer            user_data);
  97 static void gtk_option_menu_show_all        (GtkWidget          *widget);
  98 static void gtk_option_menu_hide_all        (GtkWidget          *widget);
  99 static gboolean gtk_option_menu_mnemonic_activate (GtkWidget    *widget,
 100                                                    gboolean      group_cycling);
 101 static GType gtk_option_menu_child_type   (GtkContainer       *container);
 102 static gint gtk_option_menu_scroll_event    (GtkWidget          *widget,
 103                                              GdkEventScroll     *event);
 104
 105 enum
 106 {
 107   CHANGED,
 108   LAST_SIGNAL
 109 };
 110
 111 enum
 112 {
 113   PROP_0,
 114   PROP_MENU,
 115   LAST_PROP
 116 };
 117
 118 static GtkButtonClass *parent_class = NULL;
 119 static guint           signals[LAST_SIGNAL] = { 0 };
 120
 121
 122 GType
 123 gtk_option_menu_get_type (void)
 124 {
 125   static GType option_menu_type = 0;
 126
 127   if (!option_menu_type)
 128     {
 129       static const GTypeInfo option_menu_info =
 130       {
 131         sizeof (GtkOptionMenuClass),
 132         NULL,           /* base_init */
 133         NULL,           /* base_finalize */
 134         (GClassInitFunc) gtk_option_menu_class_init,
 135         NULL,           /* class_finalize */
 136         NULL,           /* class_data */
 137         sizeof (GtkOptionMenu),
 138         0,              /* n_preallocs */
 139         (GInstanceInitFunc) gtk_option_menu_init,
 140       };
 141
 142       option_menu_type =
 143         g_type_register_static (GTK_TYPE_BUTTON, "GtkOptionMenu",
 144                                 &option_menu_info, 0);
 145     }
 146
 147   return option_menu_type;
 148 }
 149
 150 static void
 151 gtk_option_menu_class_init (GtkOptionMenuClass *class)
 152 {
 153   GObjectClass *gobject_class;
 154   GtkObjectClass *object_class;
 155   GtkWidgetClass *widget_class;
 156   GtkButtonClass *button_class;
 157   GtkContainerClass *container_class;
 158
 159   gobject_class = (GObjectClass*) class;
 160   object_class = (GtkObjectClass*) class;
 161   widget_class = (GtkWidgetClass*) class;
 162   button_class = (GtkButtonClass*) class;
 163   container_class = (GtkContainerClass*) class;
 164
 165   parent_class = g_type_class_peek_parent (class);
 166
 167   signals[CHANGED] =
 168     g_signal_new ("changed",
 169                   G_OBJECT_CLASS_TYPE (class),
 170                   G_SIGNAL_RUN_LAST,
 171                   G_STRUCT_OFFSET (GtkOptionMenuClass, changed),
 172                   NULL, NULL,
 173                   _gtk_marshal_VOID__VOID,
 174                   G_TYPE_NONE, 0);
 175
 176   gobject_class->set_property = gtk_option_menu_set_property;
 177   gobject_class->get_property = gtk_option_menu_get_property;
 178   object_class->destroy = gtk_option_menu_destroy;
 179
 180   widget_class->size_request = gtk_option_menu_size_request;
 181   widget_class->size_allocate = gtk_option_menu_size_allocate;
 182   widget_class->expose_event = gtk_option_menu_expose;
 183   widget_class->button_press_event = gtk_option_menu_button_press;
 184   widget_class->key_press_event = gtk_option_menu_key_press;
 185   widget_class->scroll_event = gtk_option_menu_scroll_event;
 186   widget_class->show_all = gtk_option_menu_show_all;
 187   widget_class->hide_all = gtk_option_menu_hide_all;
 188   widget_class->mnemonic_activate = gtk_option_menu_mnemonic_activate;
 189
 190   container_class->child_type = gtk_option_menu_child_type;
 191
 192   g_object_class_install_property (gobject_class,
 193                                    PROP_MENU,
 194                                    g_param_spec_object ("menu",
 195                                                         P_("Menu"),
 196                                                         P_("The menu of options"),
 197                                                         GTK_TYPE_MENU,
 198                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 199
 200   gtk_widget_class_install_style_property (widget_class,
 201                                            g_param_spec_boxed ("indicator-size",
 202                                                                P_("Indicator Size"),
 203                                                                P_("Size of dropdown indicator"),
 204                                                                GTK_TYPE_REQUISITION,
 205                                                                G_PARAM_READABLE));
 206   gtk_widget_class_install_style_property (widget_class,
 207                                            g_param_spec_boxed ("indicator-spacing",
 208                                                                P_("Indicator Spacing"),
 209                                                                P_("Spacing around indicator"),
 210                                                                GTK_TYPE_BORDER,
 211                                                                G_PARAM_READABLE));
 212 }
 213
 214 static GType
 215 gtk_option_menu_child_type (GtkContainer       *container)
 216 {
 217   return G_TYPE_NONE;
 218 }
 219
 220 static void
 221 gtk_option_menu_init (GtkOptionMenu *option_menu)
 222 {
 223   GTK_WIDGET_SET_FLAGS (option_menu, GTK_CAN_FOCUS);
 224   GTK_WIDGET_UNSET_FLAGS (option_menu, GTK_CAN_DEFAULT | GTK_RECEIVES_DEFAULT);
 225
 226   option_menu->menu = NULL;
 227   option_menu->menu_item = NULL;
 228   option_menu->width = 0;
 229   option_menu->height = 0;
 230 }
 231
 232 GtkWidget*
 233 gtk_option_menu_new (void)
 234 {
 235   return g_object_new (GTK_TYPE_OPTION_MENU, NULL);
 236 }
 237
 238 GtkWidget*
 239 gtk_option_menu_get_menu (GtkOptionMenu *option_menu)
 240 {
 241   g_return_val_if_fail (GTK_IS_OPTION_MENU (option_menu), NULL);
 242
 243   return option_menu->menu;
 244 }
 245
 246 static void
 247 gtk_option_menu_detacher (GtkWidget     *widget,
 248                           GtkMenu       *menu)
 249 {
 250   GtkOptionMenu *option_menu;
 251
 252   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 253
 254   option_menu = GTK_OPTION_MENU (widget);
 255   g_return_if_fail (option_menu->menu == (GtkWidget*) menu);
 256
 257   gtk_option_menu_remove_contents (option_menu);
 258   g_signal_handlers_disconnect_by_func (option_menu->menu,
 259                                         gtk_option_menu_selection_done,
 260                                         option_menu);
 261   g_signal_handlers_disconnect_by_func (option_menu->menu,
 262                                         gtk_option_menu_calc_size,
 263                                         option_menu);
 264
 265   option_menu->menu = NULL;
 266   g_object_notify (G_OBJECT (option_menu), "menu");
 267 }
 268
 269 void
 270 gtk_option_menu_set_menu (GtkOptionMenu *option_menu,
 271                           GtkWidget     *menu)
 272 {
 273   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 274   g_return_if_fail (GTK_IS_MENU (menu));
 275
 276   if (option_menu->menu != menu)
 277     {
 278       gtk_option_menu_remove_menu (option_menu);
 279
 280       option_menu->menu = menu;
 281       gtk_menu_attach_to_widget (GTK_MENU (menu),
 282                                  GTK_WIDGET (option_menu),
 283                                  gtk_option_menu_detacher);
 284
 285       gtk_option_menu_calc_size (option_menu);
 286
 287       g_signal_connect_after (option_menu->menu, "selection_done",
 288                               G_CALLBACK (gtk_option_menu_selection_done),
 289                               option_menu);
 290       g_signal_connect_swapped (option_menu->menu, "size_request",
 291                                 G_CALLBACK (gtk_option_menu_calc_size),
 292                                 option_menu);
 293
 294       if (GTK_WIDGET (option_menu)->parent)
 295         gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 296
 297       gtk_option_menu_update_contents (option_menu);
 298
 299       g_object_notify (G_OBJECT (option_menu), "menu");
 300     }
 301 }
 302
 303 void
 304 gtk_option_menu_remove_menu (GtkOptionMenu *option_menu)
 305 {
 306   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 307
 308   if (option_menu->menu)
 309     {
 310       if (GTK_MENU_SHELL (option_menu->menu)->active)
 311         gtk_menu_shell_cancel (GTK_MENU_SHELL (option_menu->menu));
 312
 313       gtk_menu_detach (GTK_MENU (option_menu->menu));
 314     }
 315 }
 316
 317 void
 318 gtk_option_menu_set_history (GtkOptionMenu *option_menu,
 319                              guint          index)
 320 {
 321   GtkWidget *menu_item;
 322
 323   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 324
 325   if (option_menu->menu)
 326     {
 327       gtk_menu_set_active (GTK_MENU (option_menu->menu), index);
 328       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 329
 330       if (menu_item != option_menu->menu_item)
 331         gtk_option_menu_update_contents (option_menu);
 332     }
 333 }
 334
 335 /**
 336  * gtk_option_menu_get_history:
 337  * @option_menu: a #GtkOptionMenu
 338  *
 339  * Retrieves the index of the currently selected menu item. The menu
 340  * items are numbered from top to bottom, starting with 0.
 341  *
 342  * Return value: index of the selected menu item, or -1 if there are no menu items
 343  * Deprecated: Use #GtkComboBox instead.
 344  **/
 345 gint
 346 gtk_option_menu_get_history (GtkOptionMenu *option_menu)
 347 {
 348   GtkWidget *active_widget;
 349
 350   g_return_val_if_fail (GTK_IS_OPTION_MENU (option_menu), -1);
 351
 352   if (option_menu->menu)
 353     {
 354       active_widget = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 355
 356       if (active_widget)
 357         return g_list_index (GTK_MENU_SHELL (option_menu->menu)->children,
 358                              active_widget);
 359       else
 360         return -1;
 361     }
 362   else
 363     return -1;
 364 }
 365
 366 static void
 367 gtk_option_menu_set_property (GObject            *object,
 368                               guint               prop_id,
 369                               const GValue       *value,
 370                               GParamSpec         *pspec)
 371 {
 372   GtkOptionMenu *option_menu = GTK_OPTION_MENU (object);
 373
 374   switch (prop_id)
 375     {
 376     case PROP_MENU:
 377       gtk_option_menu_set_menu (option_menu, g_value_get_object (value));
 378       break;
 379
 380     default:
 381       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 382       break;
 383     }
 384 }
 385
 386 static void
 387 gtk_option_menu_get_property (GObject            *object,
 388                               guint               prop_id,
 389                               GValue             *value,
 390                               GParamSpec         *pspec)
 391 {
 392   GtkOptionMenu *option_menu = GTK_OPTION_MENU (object);
 393
 394   switch (prop_id)
 395     {
 396     case PROP_MENU:
 397       g_value_set_object (value, option_menu->menu);
 398       break;
 399
 400     default:
 401       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 402       break;
 403     }
 404 }
 405
 406 static void
 407 gtk_option_menu_destroy (GtkObject *object)
 408 {
 409   GtkOptionMenu *option_menu;
 410
 411   g_return_if_fail (GTK_IS_OPTION_MENU (object));
 412
 413   option_menu = GTK_OPTION_MENU (object);
 414
 415   if (option_menu->menu)
 416     gtk_widget_destroy (option_menu->menu);
 417
 418   if (GTK_OBJECT_CLASS (parent_class)->destroy)
 419     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 420 }
 421
 422 static void
 423 gtk_option_menu_get_props (GtkOptionMenu       *option_menu,
 424                            GtkOptionMenuProps  *props)
 425 {
 426   GtkRequisition *indicator_size;
 427   GtkBorder *indicator_spacing;
 428
 429   gtk_widget_style_get (GTK_WIDGET (option_menu),
 430                         "indicator_size", &indicator_size,
 431                         "indicator_spacing", &indicator_spacing,
 432                         "interior_focus", &props->interior_focus,
 433                         "focus_line_width", &props->focus_width,
 434                         "focus_padding", &props->focus_pad,
 435                         NULL);
 436
 437   if (indicator_size)
 438     props->indicator_size = *indicator_size;
 439   else
 440     props->indicator_size = default_props.indicator_size;
 441
 442   if (indicator_spacing)
 443     props->indicator_spacing = *indicator_spacing;
 444   else
 445     props->indicator_spacing = default_props.indicator_spacing;
 446
 447   g_free (indicator_size);
 448   g_free (indicator_spacing);
 449 }
 450
 451 static void
 452 gtk_option_menu_size_request (GtkWidget      *widget,
 453                               GtkRequisition *requisition)
 454 {
 455   GtkOptionMenu *option_menu = GTK_OPTION_MENU (widget);
 456   GtkOptionMenuProps props;
 457   gint tmp;
 458   GtkRequisition child_requisition = { 0, 0 };
 459
 460   gtk_option_menu_get_props (option_menu, &props);
 461
 462   if (GTK_BIN (option_menu)->child && GTK_WIDGET_VISIBLE (GTK_BIN (option_menu)->child))
 463     {
 464       gtk_widget_size_request (GTK_BIN (option_menu)->child, &child_requisition);
 465
 466       requisition->width += child_requisition.width;
 467       requisition->height += child_requisition.height;
 468     }
 469
 470   requisition->width = ((GTK_CONTAINER (widget)->border_width +
 471                          GTK_WIDGET (widget)->style->xthickness + props.focus_pad) * 2 +
 472                         MAX (child_requisition.width, option_menu->width) +
 473                         props.indicator_size.width +
 474                         props.indicator_spacing.left + props.indicator_spacing.right +
 475                         CHILD_LEFT_SPACING + CHILD_RIGHT_SPACING + props.focus_width * 2);
 476   requisition->height = ((GTK_CONTAINER (widget)->border_width +
 477                           GTK_WIDGET (widget)->style->ythickness + props.focus_pad) * 2 +
 478                          MAX (child_requisition.height, option_menu->height) +
 479                          CHILD_TOP_SPACING + CHILD_BOTTOM_SPACING + props.focus_width * 2);
 480
 481   tmp = (requisition->height - MAX (child_requisition.height, option_menu->height) +
 482          props.indicator_size.height + props.indicator_spacing.top + props.indicator_spacing.bottom);
 483   requisition->height = MAX (requisition->height, tmp);
 484 }
 485
 486 static void
 487 gtk_option_menu_size_allocate (GtkWidget     *widget,
 488                                GtkAllocation *allocation)
 489 {
 490   GtkWidget *child;
 491   GtkButton *button = GTK_BUTTON (widget);
 492   GtkAllocation child_allocation;
 493   GtkOptionMenuProps props;
 494   gint border_width;
 495
 496   gtk_option_menu_get_props (GTK_OPTION_MENU (widget), &props);
 497   border_width = GTK_CONTAINER (widget)->border_width;
 498
 499   widget->allocation = *allocation;
 500   if (GTK_WIDGET_REALIZED (widget))
 501     gdk_window_move_resize (button->event_window,
 502                             allocation->x + border_width, allocation->y + border_width,
 503                             allocation->width - border_width * 2, allocation->height - border_width * 2);
 504
 505   child = GTK_BIN (widget)->child;
 506   if (child && GTK_WIDGET_VISIBLE (child))
 507     {
 508       gint xthickness = GTK_WIDGET (widget)->style->xthickness;
 509       gint ythickness = GTK_WIDGET (widget)->style->ythickness;
 510
 511       child_allocation.x = widget->allocation.x + border_width + xthickness + props.focus_width + props.focus_pad + CHILD_LEFT_SPACING;
 512       child_allocation.y = widget->allocation.y + border_width + ythickness + props.focus_width + props.focus_pad + CHILD_TOP_SPACING;
 513       child_allocation.width = MAX (1, allocation->width - (border_width + xthickness + props.focus_width + props.focus_pad) * 2 -
 514                                     props.indicator_size.width - props.indicator_spacing.left - props.indicator_spacing.right -
 515                                     CHILD_LEFT_SPACING - CHILD_RIGHT_SPACING);
 516       child_allocation.height = MAX (1, allocation->height - (border_width + ythickness + props.focus_width + props.focus_pad) * 2 -
 517                                      CHILD_TOP_SPACING - CHILD_BOTTOM_SPACING);
 518
 519       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 520         child_allocation.x += props.indicator_size.width + props.indicator_spacing.left + props.indicator_spacing.right;
 521
 522       gtk_widget_size_allocate (child, &child_allocation);
 523     }
 524 }
 525
 526 static void
 527 gtk_option_menu_paint (GtkWidget    *widget,
 528                        GdkRectangle *area)
 529 {
 530   GdkRectangle button_area;
 531   GtkOptionMenuProps props;
 532   gint border_width;
 533   gint tab_x;
 534
 535   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 536   g_return_if_fail (area != NULL);
 537
 538   if (GTK_WIDGET_DRAWABLE (widget))
 539     {
 540       border_width = GTK_CONTAINER (widget)->border_width;
 541       gtk_option_menu_get_props (GTK_OPTION_MENU (widget), &props);
 542
 543       button_area.x = widget->allocation.x + border_width;
 544       button_area.y = widget->allocation.y + border_width;
 545       button_area.width = widget->allocation.width - 2 * border_width;
 546       button_area.height = widget->allocation.height - 2 * border_width;
 547
 548       if (!props.interior_focus && GTK_WIDGET_HAS_FOCUS (widget))
 549         {
 550           button_area.x += props.focus_width + props.focus_pad;
 551           button_area.y += props.focus_width + props.focus_pad;
 552           button_area.width -= 2 * (props.focus_width + props.focus_pad);
 553           button_area.height -= 2 * (props.focus_width + props.focus_pad);
 554         }
 555
 556       gtk_paint_box (widget->style, widget->window,
 557                      GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
 558                      area, widget, "optionmenu",
 559                      button_area.x, button_area.y,
 560                      button_area.width, button_area.height);
 561
 562       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 563         tab_x = button_area.x + props.indicator_spacing.right +
 564           widget->style->xthickness;
 565       else
 566         tab_x = button_area.x + button_area.width -
 567           props.indicator_size.width - props.indicator_spacing.right -
 568           widget->style->xthickness;
 569
 570       gtk_paint_tab (widget->style, widget->window,
 571                      GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
 572                      area, widget, "optionmenutab",
 573                      tab_x,
 574                      button_area.y + (button_area.height - props.indicator_size.height) / 2,
 575                      props.indicator_size.width, props.indicator_size.height);
 576
 577       if (GTK_WIDGET_HAS_FOCUS (widget))
 578         {
 579           if (props.interior_focus)
 580             {
 581               button_area.x += widget->style->xthickness + props.focus_pad;
 582               button_area.y += widget->style->ythickness + props.focus_pad;
 583               button_area.width -= 2 * (widget->style->xthickness + props.focus_pad) +
 584                       props.indicator_spacing.left +
 585                       props.indicator_spacing.right +
 586                       props.indicator_size.width;
 587               button_area.height -= 2 * (widget->style->ythickness + props.focus_pad);
 588               if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 589                 button_area.x += props.indicator_spacing.left +
 590                   props.indicator_spacing.right +
 591                   props.indicator_size.width;
 592             }
 593           else
 594             {
 595               button_area.x -= props.focus_width + props.focus_pad;
 596               button_area.y -= props.focus_width + props.focus_pad;
 597               button_area.width += 2 * (props.focus_width + props.focus_pad);
 598               button_area.height += 2 * (props.focus_width + props.focus_pad);
 599             }
 600
 601           gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
 602                            area, widget, "button",
 603                            button_area.x,
 604                            button_area.y,
 605                            button_area.width,
 606                            button_area.height);
 607         }
 608     }
 609 }
 610
 611 static gint
 612 gtk_option_menu_expose (GtkWidget      *widget,
 613                         GdkEventExpose *event)
 614 {
 615   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 616   g_return_val_if_fail (event != NULL, FALSE);
 617
 618   if (GTK_WIDGET_DRAWABLE (widget))
 619     {
 620       gtk_option_menu_paint (widget, &event->area);
 621
 622
 623       /* The following code tries to draw the child in two places at
 624        * once. It fails miserably for several reasons
 625        *
 626        * - If the child is not no-window, removing generates
 627        *   more expose events. Bad, bad, bad.
 628        *
 629        * - Even if the child is no-window, removing it now (properly)
 630        *   clears the space where it was, so it does no good
 631        */
 632
 633 #if 0
 634       remove_child = FALSE;
 635       child = GTK_BUTTON (widget)->child;
 636
 637       if (!child)
 638         {
 639           if (!GTK_OPTION_MENU (widget)->menu)
 640             return FALSE;
 641           gtk_option_menu_update_contents (GTK_OPTION_MENU (widget));
 642           child = GTK_BUTTON (widget)->child;
 643           if (!child)
 644             return FALSE;
 645           remove_child = TRUE;
 646         }
 647
 648       child_event = *event;
 649
 650       if (GTK_WIDGET_NO_WINDOW (child) &&
 651           gtk_widget_intersect (child, &event->area, &child_event.area))
 652         gtk_widget_event (child, (GdkEvent*) &child_event);
 653
 654       if (remove_child)
 655         gtk_option_menu_remove_contents (GTK_OPTION_MENU (widget));
 656 #else
 657       if (GTK_BIN (widget)->child)
 658         gtk_container_propagate_expose (GTK_CONTAINER (widget),
 659                                         GTK_BIN (widget)->child,
 660                                         event);
 661 #endif /* 0 */
 662     }
 663
 664   return FALSE;
 665 }
 666
 667 static gint
 668 gtk_option_menu_button_press (GtkWidget      *widget,
 669                               GdkEventButton *event)
 670 {
 671   GtkOptionMenu *option_menu;
 672   GtkWidget *menu_item;
 673
 674   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 675   g_return_val_if_fail (event != NULL, FALSE);
 676
 677   option_menu = GTK_OPTION_MENU (widget);
 678
 679   if ((event->type == GDK_BUTTON_PRESS) &&
 680       (event->button == 1))
 681     {
 682       gtk_option_menu_remove_contents (option_menu);
 683       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 684                       gtk_option_menu_position, option_menu,
 685                       event->button, event->time);
 686       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 687       if (menu_item)
 688         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 689       return TRUE;
 690     }
 691
 692   return FALSE;
 693 }
 694
 695 static gint
 696 gtk_option_menu_key_press (GtkWidget   *widget,
 697                            GdkEventKey *event)
 698 {
 699   GtkOptionMenu *option_menu;
 700   GtkWidget *menu_item;
 701
 702   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 703   g_return_val_if_fail (event != NULL, FALSE);
 704
 705   option_menu = GTK_OPTION_MENU (widget);
 706
 707   switch (event->keyval)
 708     {
 709     case GDK_KP_Space:
 710     case GDK_space:
 711       gtk_option_menu_remove_contents (option_menu);
 712       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 713                       gtk_option_menu_position, option_menu,
 714                       0, event->time);
 715       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 716       if (menu_item)
 717         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 718       return TRUE;
 719     }
 720
 721   return FALSE;
 722 }
 723
 724 static void
 725 gtk_option_menu_selection_done (GtkMenuShell  *menu_shell,
 726                                 GtkOptionMenu *option_menu)
 727 {
 728   g_return_if_fail (menu_shell != NULL);
 729   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 730
 731   gtk_option_menu_update_contents (option_menu);
 732 }
 733
 734 static void
 735 gtk_option_menu_changed (GtkOptionMenu *option_menu)
 736 {
 737   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 738
 739   g_signal_emit (option_menu, signals[CHANGED], 0);
 740 }
 741
 742 static void
 743 gtk_option_menu_select_first_sensitive (GtkOptionMenu *option_menu)
 744 {
 745   if (option_menu->menu)
 746     {
 747       GList *children = GTK_MENU_SHELL (option_menu->menu)->children;
 748       gint index = 0;
 749
 750       while (children)
 751         {
 752           if (GTK_WIDGET_SENSITIVE (children->data))
 753             {
 754               gtk_option_menu_set_history (option_menu, index);
 755               return;
 756             }
 757
 758           children = children->next;
 759           index++;
 760         }
 761     }
 762 }
 763
 764 static void
 765 gtk_option_menu_item_state_changed_cb (GtkWidget      *widget,
 766                                        GtkStateType    previous_state,
 767                                        GtkOptionMenu  *option_menu)
 768 {
 769   GtkWidget *child = GTK_BIN (option_menu)->child;
 770
 771   if (child && GTK_WIDGET_SENSITIVE (child) != GTK_WIDGET_IS_SENSITIVE (widget))
 772     gtk_widget_set_sensitive (child, GTK_WIDGET_IS_SENSITIVE (widget));
 773 }
 774
 775 static void
 776 gtk_option_menu_item_destroy_cb (GtkWidget     *widget,
 777                                  GtkOptionMenu *option_menu)
 778 {
 779   GtkWidget *child = GTK_BIN (option_menu)->child;
 780
 781   if (child)
 782     {
 783       g_object_ref (child);
 784       gtk_option_menu_remove_contents (option_menu);
 785       gtk_widget_destroy (child);
 786       g_object_unref (child);
 787
 788       gtk_option_menu_select_first_sensitive (option_menu);
 789     }
 790 }
 791
 792 static void
 793 gtk_option_menu_update_contents (GtkOptionMenu *option_menu)
 794 {
 795   GtkWidget *child;
 796   GtkRequisition child_requisition;
 797
 798   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 799
 800   if (option_menu->menu)
 801     {
 802       GtkWidget *old_item = option_menu->menu_item;
 803
 804       gtk_option_menu_remove_contents (option_menu);
 805
 806       option_menu->menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 807       if (option_menu->menu_item)
 808         {
 809           g_object_ref (option_menu->menu_item);
 810           child = GTK_BIN (option_menu->menu_item)->child;
 811           if (child)
 812             {
 813               if (!GTK_WIDGET_IS_SENSITIVE (option_menu->menu_item))
 814                 gtk_widget_set_sensitive (child, FALSE);
 815               gtk_widget_reparent (child, GTK_WIDGET (option_menu));
 816             }
 817
 818           g_signal_connect (option_menu->menu_item, "state_changed",
 819                             G_CALLBACK (gtk_option_menu_item_state_changed_cb), option_menu);
 820           g_signal_connect (option_menu->menu_item, "destroy",
 821                             G_CALLBACK (gtk_option_menu_item_destroy_cb), option_menu);
 822
 823           gtk_widget_size_request (child, &child_requisition);
 824           gtk_widget_size_allocate (GTK_WIDGET (option_menu),
 825                                     &(GTK_WIDGET (option_menu)->allocation));
 826
 827           if (GTK_WIDGET_DRAWABLE (option_menu))
 828             gtk_widget_queue_draw (GTK_WIDGET (option_menu));
 829         }
 830
 831       if (old_item != option_menu->menu_item)
 832         gtk_option_menu_changed (option_menu);
 833     }
 834 }
 835
 836 static void
 837 gtk_option_menu_remove_contents (GtkOptionMenu *option_menu)
 838 {
 839   GtkWidget *child;
 840
 841   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 842
 843   if (option_menu->menu_item)
 844     {
 845       child = GTK_BIN (option_menu)->child;
 846
 847       if (child)
 848         {
 849           gtk_widget_set_sensitive (child, TRUE);
 850           gtk_widget_set_state (child, GTK_STATE_NORMAL);
 851           gtk_widget_reparent (child, option_menu->menu_item);
 852         }
 853
 854       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 855                                             gtk_option_menu_item_state_changed_cb,
 856                                             option_menu);
 857       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 858                                             gtk_option_menu_item_destroy_cb,
 859                                             option_menu);
 860
 861       g_object_unref (option_menu->menu_item);
 862       option_menu->menu_item = NULL;
 863     }
 864 }
 865
 866 static void
 867 gtk_option_menu_calc_size (GtkOptionMenu *option_menu)
 868 {
 869   GtkWidget *child;
 870   GList *children;
 871   GtkRequisition child_requisition;
 872   gint old_width = option_menu->width;
 873   gint old_height = option_menu->height;
 874
 875   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 876
 877   option_menu->width = 0;
 878   option_menu->height = 0;
 879
 880   if (option_menu->menu)
 881     {
 882       children = GTK_MENU_SHELL (option_menu->menu)->children;
 883       while (children)
 884         {
 885           child = children->data;
 886           children = children->next;
 887
 888           if (GTK_WIDGET_VISIBLE (child))
 889             {
 890               GtkWidget *inner = GTK_BIN (child)->child;
 891
 892               if (inner)
 893                 {
 894                   gtk_widget_size_request (inner, &child_requisition);
 895
 896                   option_menu->width = MAX (option_menu->width, child_requisition.width);
 897                   option_menu->height = MAX (option_menu->height, child_requisition.height);
 898                 }
 899             }
 900         }
 901     }
 902
 903   if (old_width != option_menu->width || old_height != option_menu->height)
 904     gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 905 }
 906
 907 static void
 908 gtk_option_menu_position (GtkMenu  *menu,
 909                           gint     *x,
 910                           gint     *y,
 911                           gboolean *push_in,
 912                           gpointer  user_data)
 913 {
 914   GtkOptionMenu *option_menu;
 915   GtkWidget *active;
 916   GtkWidget *child;
 917   GtkWidget *widget;
 918   GtkRequisition requisition;
 919   GList *children;
 920   gint screen_width;
 921   gint menu_xpos;
 922   gint menu_ypos;
 923   gint menu_width;
 924
 925   g_return_if_fail (GTK_IS_OPTION_MENU (user_data));
 926
 927   option_menu = GTK_OPTION_MENU (user_data);
 928   widget = GTK_WIDGET (option_menu);
 929
 930   gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition);
 931   menu_width = requisition.width;
 932
 933   active = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 934   gdk_window_get_origin (widget->window, &menu_xpos, &menu_ypos);
 935
 936   menu_xpos += widget->allocation.x;
 937   menu_ypos += widget->allocation.y + widget->allocation.height / 2 - 2;
 938
 939   if (active != NULL)
 940     {
 941       gtk_widget_get_child_requisition (active, &requisition);
 942       menu_ypos -= requisition.height / 2;
 943     }
 944
 945   children = GTK_MENU_SHELL (option_menu->menu)->children;
 946   while (children)
 947     {
 948       child = children->data;
 949
 950       if (active == child)
 951         break;
 952
 953       if (GTK_WIDGET_VISIBLE (child))
 954         {
 955           gtk_widget_get_child_requisition (child, &requisition);
 956           menu_ypos -= requisition.height;
 957         }
 958
 959       children = children->next;
 960     }
 961
 962   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 963     menu_xpos = menu_xpos + widget->allocation.width - menu_width;
 964
 965   /* Clamp the position on screen */
 966   screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));
 967
 968   if (menu_xpos < 0)
 969     menu_xpos = 0;
 970   else if ((menu_xpos + menu_width) > screen_width)
 971     menu_xpos -= ((menu_xpos + menu_width) - screen_width);
 972
 973   *x = menu_xpos;
 974   *y = menu_ypos;
 975   *push_in = TRUE;
 976 }
 977
 978
 979 static void
 980 gtk_option_menu_show_all (GtkWidget *widget)
 981 {
 982   GtkContainer *container;
 983   GtkOptionMenu *option_menu;
 984
 985   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 986   container = GTK_CONTAINER (widget);
 987   option_menu = GTK_OPTION_MENU (widget);
 988
 989   gtk_widget_show (widget);
 990   gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
 991   if (option_menu->menu)
 992     gtk_widget_show_all (option_menu->menu);
 993   if (option_menu->menu_item)
 994     gtk_widget_show_all (option_menu->menu_item);
 995 }
 996
 997
 998 static void
 999 gtk_option_menu_hide_all (GtkWidget *widget)
1000 {
1001   GtkContainer *container;
1002
1003   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
1004   container = GTK_CONTAINER (widget);
1005
1006   gtk_widget_hide (widget);
1007   gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
1008 }
1009
1010 static gboolean
1011 gtk_option_menu_mnemonic_activate (GtkWidget *widget,
1012                                    gboolean   group_cycling)
1013 {
1014   gtk_widget_grab_focus (widget);
1015   return TRUE;
1016 }
1017
1018 static gint
1019 gtk_option_menu_scroll_event (GtkWidget          *widget,
1020                               GdkEventScroll     *event)
1021 {
1022   GtkOptionMenu *option_menu = GTK_OPTION_MENU (widget);
1023   gint index;
1024   gint n_children;
1025   gint index_dir;
1026   GList *l;
1027   GtkMenuItem *item;
1028
1029   index = gtk_option_menu_get_history (option_menu);
1030
1031   if (index != -1)
1032     {
1033       n_children = g_list_length (GTK_MENU_SHELL (option_menu->menu)->children);
1034
1035       if (event->direction == GDK_SCROLL_UP)
1036         index_dir = -1;
1037       else
1038         index_dir = 1;
1039
1040
1041       while (TRUE)
1042         {
1043           index += index_dir;
1044
1045           if (index < 0)
1046             break;
1047           if (index >= n_children)
1048             break;
1049
1050           l = g_list_nth (GTK_MENU_SHELL (option_menu->menu)->children, index);
1051           item = GTK_MENU_ITEM (l->data);
1052           if (GTK_WIDGET_VISIBLE (item) && GTK_WIDGET_IS_SENSITIVE (item))
1053             {
1054               gtk_option_menu_set_history (option_menu, index);
1055               gtk_menu_item_activate (GTK_MENU_ITEM (item));
1056               break;
1057             }
1058
1059         }
1060     }
1061
1062   return TRUE;
1063 }
1064
1065 #define __GTK_OPTION_MENU_C__
1066 #include "gtkaliasdef.c"
1067