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 "gtkprivate.h"
  39 #include "gtkalias.h"
  40
  41 #define CHILD_LEFT_SPACING        4
  42 #define CHILD_RIGHT_SPACING       1
  43 #define CHILD_TOP_SPACING         1
  44 #define CHILD_BOTTOM_SPACING      1
  45
  46 typedef struct _GtkOptionMenuProps GtkOptionMenuProps;
  47
  48 struct _GtkOptionMenuProps
  49 {
  50   gboolean interior_focus;
  51   GtkRequisition indicator_size;
  52   GtkBorder indicator_spacing;
  53   gint focus_width;
  54   gint focus_pad;
  55 };
  56
  57 static const GtkOptionMenuProps default_props = {
  58   TRUE,
  59   { 7, 13 },
  60   { 7, 5, 2, 2 },               /* Left, right, top, bottom */
  61   1,
  62   0
  63 };
  64
  65 static void gtk_option_menu_class_init      (GtkOptionMenuClass *klass);
  66 static void gtk_option_menu_init            (GtkOptionMenu      *option_menu);
  67 static void gtk_option_menu_destroy         (GtkObject          *object);
  68 static void gtk_option_menu_set_property    (GObject            *object,
  69                                              guint               prop_id,
  70                                              const GValue       *value,
  71                                              GParamSpec         *pspec);
  72 static void gtk_option_menu_get_property    (GObject            *object,
  73                                              guint               prop_id,
  74                                              GValue             *value,
  75                                              GParamSpec         *pspec);
  76 static void gtk_option_menu_size_request    (GtkWidget          *widget,
  77                                              GtkRequisition     *requisition);
  78 static void gtk_option_menu_size_allocate   (GtkWidget          *widget,
  79                                              GtkAllocation      *allocation);
  80 static void gtk_option_menu_paint           (GtkWidget          *widget,
  81                                              GdkRectangle       *area);
  82 static gint gtk_option_menu_expose          (GtkWidget          *widget,
  83                                              GdkEventExpose     *event);
  84 static gint gtk_option_menu_button_press    (GtkWidget          *widget,
  85                                              GdkEventButton     *event);
  86 static gint gtk_option_menu_key_press       (GtkWidget          *widget,
  87                                              GdkEventKey        *event);
  88 static void gtk_option_menu_selection_done  (GtkMenuShell       *menu_shell,
  89                                              GtkOptionMenu      *option_menu);
  90 static void gtk_option_menu_update_contents (GtkOptionMenu      *option_menu);
  91 static void gtk_option_menu_remove_contents (GtkOptionMenu      *option_menu);
  92 static void gtk_option_menu_calc_size       (GtkOptionMenu      *option_menu);
  93 static void gtk_option_menu_position        (GtkMenu            *menu,
  94                                              gint               *x,
  95                                              gint               *y,
  96                                              gint               *scroll_offet,
  97                                              gpointer            user_data);
  98 static void gtk_option_menu_show_all        (GtkWidget          *widget);
  99 static void gtk_option_menu_hide_all        (GtkWidget          *widget);
 100 static gboolean gtk_option_menu_mnemonic_activate (GtkWidget    *widget,
 101                                                    gboolean      group_cycling);
 102 static GType gtk_option_menu_child_type   (GtkContainer       *container);
 103 static gint gtk_option_menu_scroll_event    (GtkWidget          *widget,
 104                                              GdkEventScroll     *event);
 105
 106 enum
 107 {
 108   CHANGED,
 109   LAST_SIGNAL
 110 };
 111
 112 enum
 113 {
 114   PROP_0,
 115   PROP_MENU,
 116   LAST_PROP
 117 };
 118
 119 static GtkButtonClass *parent_class = NULL;
 120 static guint           signals[LAST_SIGNAL] = { 0 };
 121
 122
 123 GType
 124 gtk_option_menu_get_type (void)
 125 {
 126   static GType option_menu_type = 0;
 127
 128   if (!option_menu_type)
 129     {
 130       static const GTypeInfo option_menu_info =
 131       {
 132         sizeof (GtkOptionMenuClass),
 133         NULL,           /* base_init */
 134         NULL,           /* base_finalize */
 135         (GClassInitFunc) gtk_option_menu_class_init,
 136         NULL,           /* class_finalize */
 137         NULL,           /* class_data */
 138         sizeof (GtkOptionMenu),
 139         0,              /* n_preallocs */
 140         (GInstanceInitFunc) gtk_option_menu_init,
 141       };
 142
 143       option_menu_type =
 144         g_type_register_static (GTK_TYPE_BUTTON, "GtkOptionMenu",
 145                                 &option_menu_info, 0);
 146     }
 147
 148   return option_menu_type;
 149 }
 150
 151 static void
 152 gtk_option_menu_class_init (GtkOptionMenuClass *class)
 153 {
 154   GObjectClass *gobject_class;
 155   GtkObjectClass *object_class;
 156   GtkWidgetClass *widget_class;
 157   GtkButtonClass *button_class;
 158   GtkContainerClass *container_class;
 159
 160   gobject_class = (GObjectClass*) class;
 161   object_class = (GtkObjectClass*) class;
 162   widget_class = (GtkWidgetClass*) class;
 163   button_class = (GtkButtonClass*) class;
 164   container_class = (GtkContainerClass*) class;
 165
 166   parent_class = g_type_class_peek_parent (class);
 167
 168   signals[CHANGED] =
 169     g_signal_new ("changed",
 170                   G_OBJECT_CLASS_TYPE (class),
 171                   G_SIGNAL_RUN_LAST,
 172                   G_STRUCT_OFFSET (GtkOptionMenuClass, changed),
 173                   NULL, NULL,
 174                   _gtk_marshal_VOID__VOID,
 175                   G_TYPE_NONE, 0);
 176
 177   gobject_class->set_property = gtk_option_menu_set_property;
 178   gobject_class->get_property = gtk_option_menu_get_property;
 179   object_class->destroy = gtk_option_menu_destroy;
 180
 181   widget_class->size_request = gtk_option_menu_size_request;
 182   widget_class->size_allocate = gtk_option_menu_size_allocate;
 183   widget_class->expose_event = gtk_option_menu_expose;
 184   widget_class->button_press_event = gtk_option_menu_button_press;
 185   widget_class->key_press_event = gtk_option_menu_key_press;
 186   widget_class->scroll_event = gtk_option_menu_scroll_event;
 187   widget_class->show_all = gtk_option_menu_show_all;
 188   widget_class->hide_all = gtk_option_menu_hide_all;
 189   widget_class->mnemonic_activate = gtk_option_menu_mnemonic_activate;
 190
 191   container_class->child_type = gtk_option_menu_child_type;
 192
 193   g_object_class_install_property (gobject_class,
 194                                    PROP_MENU,
 195                                    g_param_spec_object ("menu",
 196                                                         P_("Menu"),
 197                                                         P_("The menu of options"),
 198                                                         GTK_TYPE_MENU,
 199                                                         GTK_PARAM_READWRITE));
 200
 201   gtk_widget_class_install_style_property (widget_class,
 202                                            g_param_spec_boxed ("indicator-size",
 203                                                                P_("Indicator Size"),
 204                                                                P_("Size of dropdown indicator"),
 205                                                                GTK_TYPE_REQUISITION,
 206                                                                GTK_PARAM_READABLE));
 207   gtk_widget_class_install_style_property (widget_class,
 208                                            g_param_spec_boxed ("indicator-spacing",
 209                                                                P_("Indicator Spacing"),
 210                                                                P_("Spacing around indicator"),
 211                                                                GTK_TYPE_BORDER,
 212                                                                GTK_PARAM_READABLE));
 213 }
 214
 215 static GType
 216 gtk_option_menu_child_type (GtkContainer       *container)
 217 {
 218   return G_TYPE_NONE;
 219 }
 220
 221 static void
 222 gtk_option_menu_init (GtkOptionMenu *option_menu)
 223 {
 224   GTK_WIDGET_SET_FLAGS (option_menu, GTK_CAN_FOCUS);
 225   GTK_WIDGET_UNSET_FLAGS (option_menu, GTK_CAN_DEFAULT | GTK_RECEIVES_DEFAULT);
 226
 227   option_menu->menu = NULL;
 228   option_menu->menu_item = NULL;
 229   option_menu->width = 0;
 230   option_menu->height = 0;
 231 }
 232
 233 GtkWidget*
 234 gtk_option_menu_new (void)
 235 {
 236   return g_object_new (GTK_TYPE_OPTION_MENU, NULL);
 237 }
 238
 239 GtkWidget*
 240 gtk_option_menu_get_menu (GtkOptionMenu *option_menu)
 241 {
 242   g_return_val_if_fail (GTK_IS_OPTION_MENU (option_menu), NULL);
 243
 244   return option_menu->menu;
 245 }
 246
 247 static void
 248 gtk_option_menu_detacher (GtkWidget     *widget,
 249                           GtkMenu       *menu)
 250 {
 251   GtkOptionMenu *option_menu;
 252
 253   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 254
 255   option_menu = GTK_OPTION_MENU (widget);
 256   g_return_if_fail (option_menu->menu == (GtkWidget*) menu);
 257
 258   gtk_option_menu_remove_contents (option_menu);
 259   g_signal_handlers_disconnect_by_func (option_menu->menu,
 260                                         gtk_option_menu_selection_done,
 261                                         option_menu);
 262   g_signal_handlers_disconnect_by_func (option_menu->menu,
 263                                         gtk_option_menu_calc_size,
 264                                         option_menu);
 265
 266   option_menu->menu = NULL;
 267   g_object_notify (G_OBJECT (option_menu), "menu");
 268 }
 269
 270 void
 271 gtk_option_menu_set_menu (GtkOptionMenu *option_menu,
 272                           GtkWidget     *menu)
 273 {
 274   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 275   g_return_if_fail (GTK_IS_MENU (menu));
 276
 277   if (option_menu->menu != menu)
 278     {
 279       gtk_option_menu_remove_menu (option_menu);
 280
 281       option_menu->menu = menu;
 282       gtk_menu_attach_to_widget (GTK_MENU (menu),
 283                                  GTK_WIDGET (option_menu),
 284                                  gtk_option_menu_detacher);
 285
 286       gtk_option_menu_calc_size (option_menu);
 287
 288       g_signal_connect_after (option_menu->menu, "selection_done",
 289                               G_CALLBACK (gtk_option_menu_selection_done),
 290                               option_menu);
 291       g_signal_connect_swapped (option_menu->menu, "size_request",
 292                                 G_CALLBACK (gtk_option_menu_calc_size),
 293                                 option_menu);
 294
 295       if (GTK_WIDGET (option_menu)->parent)
 296         gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 297
 298       gtk_option_menu_update_contents (option_menu);
 299
 300       g_object_notify (G_OBJECT (option_menu), "menu");
 301     }
 302 }
 303
 304 void
 305 gtk_option_menu_remove_menu (GtkOptionMenu *option_menu)
 306 {
 307   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 308
 309   if (option_menu->menu)
 310     {
 311       if (GTK_MENU_SHELL (option_menu->menu)->active)
 312         gtk_menu_shell_cancel (GTK_MENU_SHELL (option_menu->menu));
 313
 314       gtk_menu_detach (GTK_MENU (option_menu->menu));
 315     }
 316 }
 317
 318 void
 319 gtk_option_menu_set_history (GtkOptionMenu *option_menu,
 320                              guint          index)
 321 {
 322   GtkWidget *menu_item;
 323
 324   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 325
 326   if (option_menu->menu)
 327     {
 328       gtk_menu_set_active (GTK_MENU (option_menu->menu), index);
 329       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 330
 331       if (menu_item != option_menu->menu_item)
 332         gtk_option_menu_update_contents (option_menu);
 333     }
 334 }
 335
 336 /**
 337  * gtk_option_menu_get_history:
 338  * @option_menu: a #GtkOptionMenu
 339  *
 340  * Retrieves the index of the currently selected menu item. The menu
 341  * items are numbered from top to bottom, starting with 0.
 342  *
 343  * Return value: index of the selected menu item, or -1 if there are no menu items
 344  * Deprecated: Use #GtkComboBox instead.
 345  **/
 346 gint
 347 gtk_option_menu_get_history (GtkOptionMenu *option_menu)
 348 {
 349   GtkWidget *active_widget;
 350
 351   g_return_val_if_fail (GTK_IS_OPTION_MENU (option_menu), -1);
 352
 353   if (option_menu->menu)
 354     {
 355       active_widget = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 356
 357       if (active_widget)
 358         return g_list_index (GTK_MENU_SHELL (option_menu->menu)->children,
 359                              active_widget);
 360       else
 361         return -1;
 362     }
 363   else
 364     return -1;
 365 }
 366
 367 static void
 368 gtk_option_menu_set_property (GObject            *object,
 369                               guint               prop_id,
 370                               const GValue       *value,
 371                               GParamSpec         *pspec)
 372 {
 373   GtkOptionMenu *option_menu = GTK_OPTION_MENU (object);
 374
 375   switch (prop_id)
 376     {
 377     case PROP_MENU:
 378       gtk_option_menu_set_menu (option_menu, g_value_get_object (value));
 379       break;
 380
 381     default:
 382       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 383       break;
 384     }
 385 }
 386
 387 static void
 388 gtk_option_menu_get_property (GObject            *object,
 389                               guint               prop_id,
 390                               GValue             *value,
 391                               GParamSpec         *pspec)
 392 {
 393   GtkOptionMenu *option_menu = GTK_OPTION_MENU (object);
 394
 395   switch (prop_id)
 396     {
 397     case PROP_MENU:
 398       g_value_set_object (value, option_menu->menu);
 399       break;
 400
 401     default:
 402       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 403       break;
 404     }
 405 }
 406
 407 static void
 408 gtk_option_menu_destroy (GtkObject *object)
 409 {
 410   GtkOptionMenu *option_menu;
 411
 412   g_return_if_fail (GTK_IS_OPTION_MENU (object));
 413
 414   option_menu = GTK_OPTION_MENU (object);
 415
 416   if (option_menu->menu)
 417     gtk_widget_destroy (option_menu->menu);
 418
 419   if (GTK_OBJECT_CLASS (parent_class)->destroy)
 420     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 421 }
 422
 423 static void
 424 gtk_option_menu_get_props (GtkOptionMenu       *option_menu,
 425                            GtkOptionMenuProps  *props)
 426 {
 427   GtkRequisition *indicator_size;
 428   GtkBorder *indicator_spacing;
 429
 430   gtk_widget_style_get (GTK_WIDGET (option_menu),
 431                         "indicator_size", &indicator_size,
 432                         "indicator_spacing", &indicator_spacing,
 433                         "interior_focus", &props->interior_focus,
 434                         "focus_line_width", &props->focus_width,
 435                         "focus_padding", &props->focus_pad,
 436                         NULL);
 437
 438   if (indicator_size)
 439     props->indicator_size = *indicator_size;
 440   else
 441     props->indicator_size = default_props.indicator_size;
 442
 443   if (indicator_spacing)
 444     props->indicator_spacing = *indicator_spacing;
 445   else
 446     props->indicator_spacing = default_props.indicator_spacing;
 447
 448   g_free (indicator_size);
 449   g_free (indicator_spacing);
 450 }
 451
 452 static void
 453 gtk_option_menu_size_request (GtkWidget      *widget,
 454                               GtkRequisition *requisition)
 455 {
 456   GtkOptionMenu *option_menu = GTK_OPTION_MENU (widget);
 457   GtkOptionMenuProps props;
 458   gint tmp;
 459   GtkRequisition child_requisition = { 0, 0 };
 460
 461   gtk_option_menu_get_props (option_menu, &props);
 462
 463   if (GTK_BIN (option_menu)->child && GTK_WIDGET_VISIBLE (GTK_BIN (option_menu)->child))
 464     {
 465       gtk_widget_size_request (GTK_BIN (option_menu)->child, &child_requisition);
 466
 467       requisition->width += child_requisition.width;
 468       requisition->height += child_requisition.height;
 469     }
 470
 471   requisition->width = ((GTK_CONTAINER (widget)->border_width +
 472                          GTK_WIDGET (widget)->style->xthickness + props.focus_pad) * 2 +
 473                         MAX (child_requisition.width, option_menu->width) +
 474                         props.indicator_size.width +
 475                         props.indicator_spacing.left + props.indicator_spacing.right +
 476                         CHILD_LEFT_SPACING + CHILD_RIGHT_SPACING + props.focus_width * 2);
 477   requisition->height = ((GTK_CONTAINER (widget)->border_width +
 478                           GTK_WIDGET (widget)->style->ythickness + props.focus_pad) * 2 +
 479                          MAX (child_requisition.height, option_menu->height) +
 480                          CHILD_TOP_SPACING + CHILD_BOTTOM_SPACING + props.focus_width * 2);
 481
 482   tmp = (requisition->height - MAX (child_requisition.height, option_menu->height) +
 483          props.indicator_size.height + props.indicator_spacing.top + props.indicator_spacing.bottom);
 484   requisition->height = MAX (requisition->height, tmp);
 485 }
 486
 487 static void
 488 gtk_option_menu_size_allocate (GtkWidget     *widget,
 489                                GtkAllocation *allocation)
 490 {
 491   GtkWidget *child;
 492   GtkButton *button = GTK_BUTTON (widget);
 493   GtkAllocation child_allocation;
 494   GtkOptionMenuProps props;
 495   gint border_width;
 496
 497   gtk_option_menu_get_props (GTK_OPTION_MENU (widget), &props);
 498   border_width = GTK_CONTAINER (widget)->border_width;
 499
 500   widget->allocation = *allocation;
 501   if (GTK_WIDGET_REALIZED (widget))
 502     gdk_window_move_resize (button->event_window,
 503                             allocation->x + border_width, allocation->y + border_width,
 504                             allocation->width - border_width * 2, allocation->height - border_width * 2);
 505
 506   child = GTK_BIN (widget)->child;
 507   if (child && GTK_WIDGET_VISIBLE (child))
 508     {
 509       gint xthickness = GTK_WIDGET (widget)->style->xthickness;
 510       gint ythickness = GTK_WIDGET (widget)->style->ythickness;
 511
 512       child_allocation.x = widget->allocation.x + border_width + xthickness + props.focus_width + props.focus_pad + CHILD_LEFT_SPACING;
 513       child_allocation.y = widget->allocation.y + border_width + ythickness + props.focus_width + props.focus_pad + CHILD_TOP_SPACING;
 514       child_allocation.width = MAX (1, allocation->width - (border_width + xthickness + props.focus_width + props.focus_pad) * 2 -
 515                                     props.indicator_size.width - props.indicator_spacing.left - props.indicator_spacing.right -
 516                                     CHILD_LEFT_SPACING - CHILD_RIGHT_SPACING);
 517       child_allocation.height = MAX (1, allocation->height - (border_width + ythickness + props.focus_width + props.focus_pad) * 2 -
 518                                      CHILD_TOP_SPACING - CHILD_BOTTOM_SPACING);
 519
 520       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 521         child_allocation.x += props.indicator_size.width + props.indicator_spacing.left + props.indicator_spacing.right;
 522
 523       gtk_widget_size_allocate (child, &child_allocation);
 524     }
 525 }
 526
 527 static void
 528 gtk_option_menu_paint (GtkWidget    *widget,
 529                        GdkRectangle *area)
 530 {
 531   GdkRectangle button_area;
 532   GtkOptionMenuProps props;
 533   gint border_width;
 534   gint tab_x;
 535
 536   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 537   g_return_if_fail (area != NULL);
 538
 539   if (GTK_WIDGET_DRAWABLE (widget))
 540     {
 541       border_width = GTK_CONTAINER (widget)->border_width;
 542       gtk_option_menu_get_props (GTK_OPTION_MENU (widget), &props);
 543
 544       button_area.x = widget->allocation.x + border_width;
 545       button_area.y = widget->allocation.y + border_width;
 546       button_area.width = widget->allocation.width - 2 * border_width;
 547       button_area.height = widget->allocation.height - 2 * border_width;
 548
 549       if (!props.interior_focus && GTK_WIDGET_HAS_FOCUS (widget))
 550         {
 551           button_area.x += props.focus_width + props.focus_pad;
 552           button_area.y += props.focus_width + props.focus_pad;
 553           button_area.width -= 2 * (props.focus_width + props.focus_pad);
 554           button_area.height -= 2 * (props.focus_width + props.focus_pad);
 555         }
 556
 557       gtk_paint_box (widget->style, widget->window,
 558                      GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
 559                      area, widget, "optionmenu",
 560                      button_area.x, button_area.y,
 561                      button_area.width, button_area.height);
 562
 563       if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 564         tab_x = button_area.x + props.indicator_spacing.right +
 565           widget->style->xthickness;
 566       else
 567         tab_x = button_area.x + button_area.width -
 568           props.indicator_size.width - props.indicator_spacing.right -
 569           widget->style->xthickness;
 570
 571       gtk_paint_tab (widget->style, widget->window,
 572                      GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
 573                      area, widget, "optionmenutab",
 574                      tab_x,
 575                      button_area.y + (button_area.height - props.indicator_size.height) / 2,
 576                      props.indicator_size.width, props.indicator_size.height);
 577
 578       if (GTK_WIDGET_HAS_FOCUS (widget))
 579         {
 580           if (props.interior_focus)
 581             {
 582               button_area.x += widget->style->xthickness + props.focus_pad;
 583               button_area.y += widget->style->ythickness + props.focus_pad;
 584               button_area.width -= 2 * (widget->style->xthickness + props.focus_pad) +
 585                       props.indicator_spacing.left +
 586                       props.indicator_spacing.right +
 587                       props.indicator_size.width;
 588               button_area.height -= 2 * (widget->style->ythickness + props.focus_pad);
 589               if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
 590                 button_area.x += props.indicator_spacing.left +
 591                   props.indicator_spacing.right +
 592                   props.indicator_size.width;
 593             }
 594           else
 595             {
 596               button_area.x -= props.focus_width + props.focus_pad;
 597               button_area.y -= props.focus_width + props.focus_pad;
 598               button_area.width += 2 * (props.focus_width + props.focus_pad);
 599               button_area.height += 2 * (props.focus_width + props.focus_pad);
 600             }
 601
 602           gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
 603                            area, widget, "button",
 604                            button_area.x,
 605                            button_area.y,
 606                            button_area.width,
 607                            button_area.height);
 608         }
 609     }
 610 }
 611
 612 static gint
 613 gtk_option_menu_expose (GtkWidget      *widget,
 614                         GdkEventExpose *event)
 615 {
 616   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 617   g_return_val_if_fail (event != NULL, FALSE);
 618
 619   if (GTK_WIDGET_DRAWABLE (widget))
 620     {
 621       gtk_option_menu_paint (widget, &event->area);
 622
 623
 624       /* The following code tries to draw the child in two places at
 625        * once. It fails miserably for several reasons
 626        *
 627        * - If the child is not no-window, removing generates
 628        *   more expose events. Bad, bad, bad.
 629        *
 630        * - Even if the child is no-window, removing it now (properly)
 631        *   clears the space where it was, so it does no good
 632        */
 633
 634 #if 0
 635       remove_child = FALSE;
 636       child = GTK_BUTTON (widget)->child;
 637
 638       if (!child)
 639         {
 640           if (!GTK_OPTION_MENU (widget)->menu)
 641             return FALSE;
 642           gtk_option_menu_update_contents (GTK_OPTION_MENU (widget));
 643           child = GTK_BUTTON (widget)->child;
 644           if (!child)
 645             return FALSE;
 646           remove_child = TRUE;
 647         }
 648
 649       child_event = *event;
 650
 651       if (GTK_WIDGET_NO_WINDOW (child) &&
 652           gtk_widget_intersect (child, &event->area, &child_event.area))
 653         gtk_widget_event (child, (GdkEvent*) &child_event);
 654
 655       if (remove_child)
 656         gtk_option_menu_remove_contents (GTK_OPTION_MENU (widget));
 657 #else
 658       if (GTK_BIN (widget)->child)
 659         gtk_container_propagate_expose (GTK_CONTAINER (widget),
 660                                         GTK_BIN (widget)->child,
 661                                         event);
 662 #endif /* 0 */
 663     }
 664
 665   return FALSE;
 666 }
 667
 668 static gint
 669 gtk_option_menu_button_press (GtkWidget      *widget,
 670                               GdkEventButton *event)
 671 {
 672   GtkOptionMenu *option_menu;
 673   GtkWidget *menu_item;
 674
 675   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 676   g_return_val_if_fail (event != NULL, FALSE);
 677
 678   option_menu = GTK_OPTION_MENU (widget);
 679
 680   if ((event->type == GDK_BUTTON_PRESS) &&
 681       (event->button == 1))
 682     {
 683       gtk_option_menu_remove_contents (option_menu);
 684       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 685                       gtk_option_menu_position, option_menu,
 686                       event->button, event->time);
 687       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 688       if (menu_item)
 689         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 690       return TRUE;
 691     }
 692
 693   return FALSE;
 694 }
 695
 696 static gint
 697 gtk_option_menu_key_press (GtkWidget   *widget,
 698                            GdkEventKey *event)
 699 {
 700   GtkOptionMenu *option_menu;
 701   GtkWidget *menu_item;
 702
 703   g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
 704   g_return_val_if_fail (event != NULL, FALSE);
 705
 706   option_menu = GTK_OPTION_MENU (widget);
 707
 708   switch (event->keyval)
 709     {
 710     case GDK_KP_Space:
 711     case GDK_space:
 712       gtk_option_menu_remove_contents (option_menu);
 713       gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
 714                       gtk_option_menu_position, option_menu,
 715                       0, event->time);
 716       menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 717       if (menu_item)
 718         gtk_menu_shell_select_item (GTK_MENU_SHELL (option_menu->menu), menu_item);
 719       return TRUE;
 720     }
 721
 722   return FALSE;
 723 }
 724
 725 static void
 726 gtk_option_menu_selection_done (GtkMenuShell  *menu_shell,
 727                                 GtkOptionMenu *option_menu)
 728 {
 729   g_return_if_fail (menu_shell != NULL);
 730   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 731
 732   gtk_option_menu_update_contents (option_menu);
 733 }
 734
 735 static void
 736 gtk_option_menu_changed (GtkOptionMenu *option_menu)
 737 {
 738   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 739
 740   g_signal_emit (option_menu, signals[CHANGED], 0);
 741 }
 742
 743 static void
 744 gtk_option_menu_select_first_sensitive (GtkOptionMenu *option_menu)
 745 {
 746   if (option_menu->menu)
 747     {
 748       GList *children = GTK_MENU_SHELL (option_menu->menu)->children;
 749       gint index = 0;
 750
 751       while (children)
 752         {
 753           if (GTK_WIDGET_SENSITIVE (children->data))
 754             {
 755               gtk_option_menu_set_history (option_menu, index);
 756               return;
 757             }
 758
 759           children = children->next;
 760           index++;
 761         }
 762     }
 763 }
 764
 765 static void
 766 gtk_option_menu_item_state_changed_cb (GtkWidget      *widget,
 767                                        GtkStateType    previous_state,
 768                                        GtkOptionMenu  *option_menu)
 769 {
 770   GtkWidget *child = GTK_BIN (option_menu)->child;
 771
 772   if (child && GTK_WIDGET_SENSITIVE (child) != GTK_WIDGET_IS_SENSITIVE (widget))
 773     gtk_widget_set_sensitive (child, GTK_WIDGET_IS_SENSITIVE (widget));
 774 }
 775
 776 static void
 777 gtk_option_menu_item_destroy_cb (GtkWidget     *widget,
 778                                  GtkOptionMenu *option_menu)
 779 {
 780   GtkWidget *child = GTK_BIN (option_menu)->child;
 781
 782   if (child)
 783     {
 784       g_object_ref (child);
 785       gtk_option_menu_remove_contents (option_menu);
 786       gtk_widget_destroy (child);
 787       g_object_unref (child);
 788
 789       gtk_option_menu_select_first_sensitive (option_menu);
 790     }
 791 }
 792
 793 static void
 794 gtk_option_menu_update_contents (GtkOptionMenu *option_menu)
 795 {
 796   GtkWidget *child;
 797   GtkRequisition child_requisition;
 798
 799   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 800
 801   if (option_menu->menu)
 802     {
 803       GtkWidget *old_item = option_menu->menu_item;
 804
 805       gtk_option_menu_remove_contents (option_menu);
 806
 807       option_menu->menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 808       if (option_menu->menu_item)
 809         {
 810           g_object_ref (option_menu->menu_item);
 811           child = GTK_BIN (option_menu->menu_item)->child;
 812           if (child)
 813             {
 814               if (!GTK_WIDGET_IS_SENSITIVE (option_menu->menu_item))
 815                 gtk_widget_set_sensitive (child, FALSE);
 816               gtk_widget_reparent (child, GTK_WIDGET (option_menu));
 817             }
 818
 819           g_signal_connect (option_menu->menu_item, "state_changed",
 820                             G_CALLBACK (gtk_option_menu_item_state_changed_cb), option_menu);
 821           g_signal_connect (option_menu->menu_item, "destroy",
 822                             G_CALLBACK (gtk_option_menu_item_destroy_cb), option_menu);
 823
 824           gtk_widget_size_request (child, &child_requisition);
 825           gtk_widget_size_allocate (GTK_WIDGET (option_menu),
 826                                     &(GTK_WIDGET (option_menu)->allocation));
 827
 828           if (GTK_WIDGET_DRAWABLE (option_menu))
 829             gtk_widget_queue_draw (GTK_WIDGET (option_menu));
 830         }
 831
 832       if (old_item != option_menu->menu_item)
 833         gtk_option_menu_changed (option_menu);
 834     }
 835 }
 836
 837 static void
 838 gtk_option_menu_remove_contents (GtkOptionMenu *option_menu)
 839 {
 840   GtkWidget *child;
 841
 842   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 843
 844   if (option_menu->menu_item)
 845     {
 846       child = GTK_BIN (option_menu)->child;
 847
 848       if (child)
 849         {
 850           gtk_widget_set_sensitive (child, TRUE);
 851           gtk_widget_set_state (child, GTK_STATE_NORMAL);
 852           gtk_widget_reparent (child, option_menu->menu_item);
 853         }
 854
 855       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 856                                             gtk_option_menu_item_state_changed_cb,
 857                                             option_menu);
 858       g_signal_handlers_disconnect_by_func (option_menu->menu_item,
 859                                             gtk_option_menu_item_destroy_cb,
 860                                             option_menu);
 861
 862       g_object_unref (option_menu->menu_item);
 863       option_menu->menu_item = NULL;
 864     }
 865 }
 866
 867 static void
 868 gtk_option_menu_calc_size (GtkOptionMenu *option_menu)
 869 {
 870   GtkWidget *child;
 871   GList *children;
 872   GtkRequisition child_requisition;
 873   gint old_width = option_menu->width;
 874   gint old_height = option_menu->height;
 875
 876   g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
 877
 878   option_menu->width = 0;
 879   option_menu->height = 0;
 880
 881   if (option_menu->menu)
 882     {
 883       children = GTK_MENU_SHELL (option_menu->menu)->children;
 884       while (children)
 885         {
 886           child = children->data;
 887           children = children->next;
 888
 889           if (GTK_WIDGET_VISIBLE (child))
 890             {
 891               GtkWidget *inner = GTK_BIN (child)->child;
 892
 893               if (inner)
 894                 {
 895                   gtk_widget_size_request (inner, &child_requisition);
 896
 897                   option_menu->width = MAX (option_menu->width, child_requisition.width);
 898                   option_menu->height = MAX (option_menu->height, child_requisition.height);
 899                 }
 900             }
 901         }
 902     }
 903
 904   if (old_width != option_menu->width || old_height != option_menu->height)
 905     gtk_widget_queue_resize (GTK_WIDGET (option_menu));
 906 }
 907
 908 static void
 909 gtk_option_menu_position (GtkMenu  *menu,
 910                           gint     *x,
 911                           gint     *y,
 912                           gboolean *push_in,
 913                           gpointer  user_data)
 914 {
 915   GtkOptionMenu *option_menu;
 916   GtkWidget *active;
 917   GtkWidget *child;
 918   GtkWidget *widget;
 919   GtkRequisition requisition;
 920   GList *children;
 921   gint screen_width;
 922   gint menu_xpos;
 923   gint menu_ypos;
 924   gint menu_width;
 925
 926   g_return_if_fail (GTK_IS_OPTION_MENU (user_data));
 927
 928   option_menu = GTK_OPTION_MENU (user_data);
 929   widget = GTK_WIDGET (option_menu);
 930
 931   gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition);
 932   menu_width = requisition.width;
 933
 934   active = gtk_menu_get_active (GTK_MENU (option_menu->menu));
 935   gdk_window_get_origin (widget->window, &menu_xpos, &menu_ypos);
 936
 937   menu_xpos += widget->allocation.x;
 938   menu_ypos += widget->allocation.y + widget->allocation.height / 2 - 2;
 939
 940   if (active != NULL)
 941     {
 942       gtk_widget_get_child_requisition (active, &requisition);
 943       menu_ypos -= requisition.height / 2;
 944     }
 945
 946   children = GTK_MENU_SHELL (option_menu->menu)->children;
 947   while (children)
 948     {
 949       child = children->data;
 950
 951       if (active == child)
 952         break;
 953
 954       if (GTK_WIDGET_VISIBLE (child))
 955         {
 956           gtk_widget_get_child_requisition (child, &requisition);
 957           menu_ypos -= requisition.height;
 958         }
 959
 960       children = children->next;
 961     }
 962
 963   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 964     menu_xpos = menu_xpos + widget->allocation.width - menu_width;
 965
 966   /* Clamp the position on screen */
 967   screen_width = gdk_screen_get_width (gtk_widget_get_screen (widget));
 968
 969   if (menu_xpos < 0)
 970     menu_xpos = 0;
 971   else if ((menu_xpos + menu_width) > screen_width)
 972     menu_xpos -= ((menu_xpos + menu_width) - screen_width);
 973
 974   *x = menu_xpos;
 975   *y = menu_ypos;
 976   *push_in = TRUE;
 977 }
 978
 979
 980 static void
 981 gtk_option_menu_show_all (GtkWidget *widget)
 982 {
 983   GtkContainer *container;
 984   GtkOptionMenu *option_menu;
 985
 986   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
 987   container = GTK_CONTAINER (widget);
 988   option_menu = GTK_OPTION_MENU (widget);
 989
 990   gtk_widget_show (widget);
 991   gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
 992   if (option_menu->menu)
 993     gtk_widget_show_all (option_menu->menu);
 994   if (option_menu->menu_item)
 995     gtk_widget_show_all (option_menu->menu_item);
 996 }
 997
 998
 999 static void
1000 gtk_option_menu_hide_all (GtkWidget *widget)
1001 {
1002   GtkContainer *container;
1003
1004   g_return_if_fail (GTK_IS_OPTION_MENU (widget));
1005   container = GTK_CONTAINER (widget);
1006
1007   gtk_widget_hide (widget);
1008   gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
1009 }
1010
1011 static gboolean
1012 gtk_option_menu_mnemonic_activate (GtkWidget *widget,
1013                                    gboolean   group_cycling)
1014 {
1015   gtk_widget_grab_focus (widget);
1016   return TRUE;
1017 }
1018
1019 static gint
1020 gtk_option_menu_scroll_event (GtkWidget          *widget,
1021                               GdkEventScroll     *event)
1022 {
1023   GtkOptionMenu *option_menu = GTK_OPTION_MENU (widget);
1024   gint index;
1025   gint n_children;
1026   gint index_dir;
1027   GList *l;
1028   GtkMenuItem *item;
1029
1030   index = gtk_option_menu_get_history (option_menu);
1031
1032   if (index != -1)
1033     {
1034       n_children = g_list_length (GTK_MENU_SHELL (option_menu->menu)->children);
1035
1036       if (event->direction == GDK_SCROLL_UP)
1037         index_dir = -1;
1038       else
1039         index_dir = 1;
1040
1041
1042       while (TRUE)
1043         {
1044           index += index_dir;
1045
1046           if (index < 0)
1047             break;
1048           if (index >= n_children)
1049             break;
1050
1051           l = g_list_nth (GTK_MENU_SHELL (option_menu->menu)->children, index);
1052           item = GTK_MENU_ITEM (l->data);
1053           if (GTK_WIDGET_VISIBLE (item) && GTK_WIDGET_IS_SENSITIVE (item))
1054             {
1055               gtk_option_menu_set_history (option_menu, index);
1056               gtk_menu_item_activate (GTK_MENU_ITEM (item));
1057               break;
1058             }
1059
1060         }
1061     }
1062
1063   return TRUE;
1064 }
1065
1066 #define __GTK_OPTION_MENU_C__
1067 #include "gtkaliasdef.c"
1068