gtkmenuitem.c 37.6 KB
Newer Older
Elliot Lee's avatar
Elliot Lee committed
1 2 3 4
/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
5
 * modify it under the terms of the GNU Lesser General Public
Elliot Lee's avatar
Elliot Lee committed
6 7 8 9 10 11
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12
 * Lesser General Public License for more details.
Elliot Lee's avatar
Elliot Lee committed
13
 *
14
 * You should have received a copy of the GNU Lesser General Public
15 16 17
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
Elliot Lee's avatar
Elliot Lee committed
18
 */
19 20

/*
21
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
22 23 24 25 26
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

27 28
#define GTK_MENU_INTERNALS

Elliot Lee's avatar
Elliot Lee committed
29
#include <string.h>
Tim Janik's avatar
Tim Janik committed
30
#include "gtkaccellabel.h"
Elliot Lee's avatar
Elliot Lee committed
31
#include "gtkmain.h"
32
#include "gtkmarshalers.h"
Elliot Lee's avatar
Elliot Lee committed
33
#include "gtkmenu.h"
34
#include "gtkmenubar.h"
Elliot Lee's avatar
Elliot Lee committed
35
#include "gtkmenuitem.h"
36
#include "gtkseparatormenuitem.h"
Elliot Lee's avatar
Elliot Lee committed
37 38 39 40 41

#define MENU_ITEM_CLASS(w)  GTK_MENU_ITEM_CLASS (GTK_OBJECT (w)->klass)

enum {
  ACTIVATE,
42
  ACTIVATE_ITEM,
43 44
  TOGGLE_SIZE_REQUEST,
  TOGGLE_SIZE_ALLOCATE,
Elliot Lee's avatar
Elliot Lee committed
45 46 47 48 49 50 51
  LAST_SIGNAL
};


static void gtk_menu_item_class_init     (GtkMenuItemClass *klass);
static void gtk_menu_item_init           (GtkMenuItem      *menu_item);
static void gtk_menu_item_destroy        (GtkObject        *object);
52
static void gtk_menu_item_finalize       (GObject          *object);
Elliot Lee's avatar
Elliot Lee committed
53 54 55 56
static void gtk_menu_item_size_request   (GtkWidget        *widget,
					  GtkRequisition   *requisition);
static void gtk_menu_item_size_allocate  (GtkWidget        *widget,
					  GtkAllocation    *allocation);
57 58 59 60
static void gtk_menu_item_realize        (GtkWidget        *widget);
static void gtk_menu_item_unrealize      (GtkWidget        *widget);
static void gtk_menu_item_map            (GtkWidget        *widget);
static void gtk_menu_item_unmap          (GtkWidget        *widget);
Elliot Lee's avatar
Elliot Lee committed
61 62 63 64
static void gtk_menu_item_paint          (GtkWidget        *widget,
					  GdkRectangle     *area);
static gint gtk_menu_item_expose         (GtkWidget        *widget,
					  GdkEventExpose   *event);
65 66
static void gtk_menu_item_parent_set     (GtkWidget        *widget,
					  GtkWidget        *previous_parent);
67

68

69 70 71 72
static void gtk_real_menu_item_select               (GtkItem     *item);
static void gtk_real_menu_item_deselect             (GtkItem     *item);
static void gtk_real_menu_item_activate_item        (GtkMenuItem *item);
static void gtk_real_menu_item_toggle_size_request  (GtkMenuItem *menu_item,
73
						     gint        *requisition);
74
static void gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
75
						     gint         allocation);
76
static gboolean gtk_menu_item_mnemonic_activate     (GtkWidget   *widget,
77
						     gboolean     group_cycling);
78

Elliot Lee's avatar
Elliot Lee committed
79
static gint gtk_menu_item_select_timeout (gpointer          data);
80
static void gtk_menu_item_popup_submenu  (gpointer     data);
Elliot Lee's avatar
Elliot Lee committed
81 82 83
static void gtk_menu_item_position_menu  (GtkMenu          *menu,
					  gint             *x,
					  gint             *y,
84
					  gboolean         *push_in,
Elliot Lee's avatar
Elliot Lee committed
85
					  gpointer          user_data);
86 87
static void gtk_menu_item_show_all       (GtkWidget        *widget);
static void gtk_menu_item_hide_all       (GtkWidget        *widget);
88 89 90 91
static void gtk_menu_item_forall         (GtkContainer    *container,
					  gboolean         include_internals,
					  GtkCallback      callback,
					  gpointer         callback_data);
Elliot Lee's avatar
Elliot Lee committed
92

93

Elliot Lee's avatar
Elliot Lee committed
94
static GtkItemClass *parent_class;
95
static guint menu_item_signals[LAST_SIGNAL] = { 0 };
Elliot Lee's avatar
Elliot Lee committed
96

Manish Singh's avatar
Manish Singh committed
97
GType
98
gtk_menu_item_get_type (void)
Elliot Lee's avatar
Elliot Lee committed
99
{
Manish Singh's avatar
Manish Singh committed
100
  static GType menu_item_type = 0;
Elliot Lee's avatar
Elliot Lee committed
101 102 103

  if (!menu_item_type)
    {
104
      static const GTypeInfo menu_item_info =
Elliot Lee's avatar
Elliot Lee committed
105 106
      {
	sizeof (GtkMenuItemClass),
107 108 109 110 111 112 113 114
	NULL,           /* base_init */
	NULL,           /* base_finalize */
	(GClassInitFunc) gtk_menu_item_class_init,
	NULL,           /* class_finalize */
	NULL,           /* class_data */
	sizeof (GtkMenuItem),
	16,             /* n_preallocs */
	(GInstanceInitFunc) gtk_menu_item_init,
Elliot Lee's avatar
Elliot Lee committed
115 116
      };

Manish Singh's avatar
Manish Singh committed
117 118
      menu_item_type = g_type_register_static (GTK_TYPE_ITEM, "GtkMenuItem",
					       &menu_item_info, 0);
Elliot Lee's avatar
Elliot Lee committed
119 120 121 122 123 124 125 126
    }

  return menu_item_type;
}

static void
gtk_menu_item_class_init (GtkMenuItemClass *klass)
{
127 128 129 130 131
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
  GtkItemClass *item_class = GTK_ITEM_CLASS (klass);
Elliot Lee's avatar
Elliot Lee committed
132

133
  parent_class = g_type_class_peek_parent (klass);
Elliot Lee's avatar
Elliot Lee committed
134

135
  gobject_class->finalize = gtk_menu_item_finalize;
136 137 138 139 140 141

  object_class->destroy = gtk_menu_item_destroy;

  widget_class->size_request = gtk_menu_item_size_request;
  widget_class->size_allocate = gtk_menu_item_size_allocate;
  widget_class->expose_event = gtk_menu_item_expose;
142 143 144 145
  widget_class->realize = gtk_menu_item_realize;
  widget_class->unrealize = gtk_menu_item_unrealize;
  widget_class->map = gtk_menu_item_map;
  widget_class->unmap = gtk_menu_item_unmap;
146 147
  widget_class->show_all = gtk_menu_item_show_all;
  widget_class->hide_all = gtk_menu_item_hide_all;
148
  widget_class->mnemonic_activate = gtk_menu_item_mnemonic_activate;
149
  widget_class->parent_set = gtk_menu_item_parent_set;
150
  
151 152 153 154 155 156 157 158 159 160 161 162
  container_class->forall = gtk_menu_item_forall;

  item_class->select = gtk_real_menu_item_select;
  item_class->deselect = gtk_real_menu_item_deselect;

  klass->activate = NULL;
  klass->activate_item = gtk_real_menu_item_activate_item;
  klass->toggle_size_request = gtk_real_menu_item_toggle_size_request;
  klass->toggle_size_allocate = gtk_real_menu_item_toggle_size_allocate;

  klass->hide_on_activate = TRUE;

Elliot Lee's avatar
Elliot Lee committed
163
  menu_item_signals[ACTIVATE] =
Manish Singh's avatar
Manish Singh committed
164 165 166 167 168 169 170
    g_signal_new ("activate",
		  G_OBJECT_CLASS_TYPE (gobject_class),
		  G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkMenuItemClass, activate),
		  NULL, NULL,
		  _gtk_marshal_VOID__VOID,
		  G_TYPE_NONE, 0);
171
  widget_class->activate_signal = menu_item_signals[ACTIVATE];
Elliot Lee's avatar
Elliot Lee committed
172

173
  menu_item_signals[ACTIVATE_ITEM] =
Manish Singh's avatar
Manish Singh committed
174 175 176 177 178 179 180
    g_signal_new ("activate_item",
		  G_OBJECT_CLASS_TYPE (gobject_class),
		  G_SIGNAL_RUN_FIRST,
		  G_STRUCT_OFFSET (GtkMenuItemClass, activate_item),
		  NULL, NULL,
		  _gtk_marshal_VOID__VOID,
		  G_TYPE_NONE, 0);
181

182
  menu_item_signals[TOGGLE_SIZE_REQUEST] =
Manish Singh's avatar
Manish Singh committed
183 184 185 186 187 188 189 190
    g_signal_new ("toggle_size_request",
		  G_OBJECT_CLASS_TYPE (gobject_class),
		  G_SIGNAL_RUN_FIRST,
		  G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_request),
		  NULL, NULL,
		  _gtk_marshal_VOID__POINTER,
		  G_TYPE_NONE, 1,
		  G_TYPE_POINTER);
191 192

  menu_item_signals[TOGGLE_SIZE_ALLOCATE] =
Manish Singh's avatar
Manish Singh committed
193 194 195 196 197 198 199 200
    g_signal_new ("toggle_size_allocate",
		  G_OBJECT_CLASS_TYPE (gobject_class),
		  G_SIGNAL_RUN_FIRST,
		  G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_allocate),
		  NULL, NULL,
		  _gtk_marshal_NONE__INT,
		  G_TYPE_NONE, 1,
		  G_TYPE_INT);
201 202 203 204 205 206

  gtk_widget_class_install_style_property_parser (widget_class,
						  g_param_spec_enum ("selected_shadow_type",
								     "Selected Shadow Type",
								     "Shadow type when item is selected",
								     GTK_TYPE_SHADOW_TYPE,
207
								     GTK_SHADOW_NONE,
208 209
								     G_PARAM_READABLE),
						  gtk_rc_property_parse_enum);
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("horizontal_padding",
							     "Horizontal Padding",
							     "Padding to left and right of the menu item",
							     0,
							     G_MAXINT,
							     3,
							     G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("toggle_spacing",
							     "Icon Spacing",
							     "Space between icon and label",
							     0,
							     G_MAXINT,
							     5,
							     G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("arrow_spacing",
							     "Arrow Spacing",
							     "Space between label and arrow",
							     0,
							     G_MAXINT,
							     10,
							     G_PARAM_READABLE));
Elliot Lee's avatar
Elliot Lee committed
237 238 239 240 241
}

static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
242 243
  GTK_WIDGET_SET_FLAGS (menu_item, GTK_NO_WINDOW);
  
Elliot Lee's avatar
Elliot Lee committed
244 245
  menu_item->submenu = NULL;
  menu_item->toggle_size = 0;
246
  menu_item->accelerator_width = 0;
Elliot Lee's avatar
Elliot Lee committed
247
  menu_item->show_submenu_indicator = FALSE;
248 249 250 251
  if (gtk_widget_get_direction (GTK_WIDGET (menu_item)) == GTK_TEXT_DIR_RTL)
    menu_item->submenu_direction = GTK_DIRECTION_LEFT;
  else
    menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
Elliot Lee's avatar
Elliot Lee committed
252 253 254 255 256 257 258
  menu_item->submenu_placement = GTK_TOP_BOTTOM;
  menu_item->right_justify = FALSE;

  menu_item->timer = 0;
}

GtkWidget*
259
gtk_menu_item_new (void)
Elliot Lee's avatar
Elliot Lee committed
260
{
Manish Singh's avatar
Manish Singh committed
261
  return g_object_new (GTK_TYPE_MENU_ITEM, NULL);
Elliot Lee's avatar
Elliot Lee committed
262 263 264 265 266 267
}

GtkWidget*
gtk_menu_item_new_with_label (const gchar *label)
{
  GtkWidget *menu_item;
Tim Janik's avatar
Tim Janik committed
268
  GtkWidget *accel_label;
Elliot Lee's avatar
Elliot Lee committed
269 270

  menu_item = gtk_menu_item_new ();
Tim Janik's avatar
Tim Janik committed
271 272
  accel_label = gtk_accel_label_new (label);
  gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
Elliot Lee's avatar
Elliot Lee committed
273

Tim Janik's avatar
Tim Janik committed
274 275 276
  gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
  gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), menu_item);
  gtk_widget_show (accel_label);
Elliot Lee's avatar
Elliot Lee committed
277 278 279 280

  return menu_item;
}

281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298

/**
 * gtk_menu_item_new_with_mnemonic:
 * @label: The text of the button, with an underscore in front of the
 *         mnemonic character
 * @returns: a new #GtkMenuItem
 *
 * Creates a new #GtkMenuItem containing a label. The label
 * will be created using gtk_label_new_with_mnemonic(), so underscores
 * in @label indicate the mnemonic for the menu item.
 **/
GtkWidget*
gtk_menu_item_new_with_mnemonic (const gchar *label)
{
  GtkWidget *menu_item;
  GtkWidget *accel_label;

  menu_item = gtk_menu_item_new ();
Manish Singh's avatar
Manish Singh committed
299
  accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
300 301 302 303 304 305 306 307 308 309
  gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
  gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);

  gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
  gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), menu_item);
  gtk_widget_show (accel_label);

  return menu_item;
}

Elliot Lee's avatar
Elliot Lee committed
310 311 312 313 314 315 316 317 318 319
static void
gtk_menu_item_destroy (GtkObject *object)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (object));

  menu_item = GTK_MENU_ITEM (object);

  if (menu_item->submenu)
320
    gtk_widget_destroy (menu_item->submenu);
Elliot Lee's avatar
Elliot Lee committed
321

322 323 324 325 326 327 328 329 330 331 332
  GTK_OBJECT_CLASS (parent_class)->destroy (object);
}

static void
gtk_menu_item_finalize (GObject *object)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (object);

  g_free (menu_item->accel_path);

  G_OBJECT_CLASS (parent_class)->finalize (object);
Elliot Lee's avatar
Elliot Lee committed
333 334
}

335 336 337 338 339 340 341 342 343 344 345 346 347 348
static void
gtk_menu_item_detacher (GtkWidget     *widget,
			GtkMenu       *menu)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  menu_item = GTK_MENU_ITEM (widget);
  g_return_if_fail (menu_item->submenu == (GtkWidget*) menu);

  menu_item->submenu = NULL;
}

Elliot Lee's avatar
Elliot Lee committed
349 350 351 352 353
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
			   GtkWidget   *submenu)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
354
  
355
  if (menu_item->submenu != submenu)
Elliot Lee's avatar
Elliot Lee committed
356
    {
357 358
      gtk_menu_item_remove_submenu (menu_item);
      
359
      menu_item->submenu = submenu;
360 361 362 363
      gtk_menu_attach_to_widget (GTK_MENU (submenu),
				 GTK_WIDGET (menu_item),
				 gtk_menu_item_detacher);
      
364 365
      if (GTK_WIDGET (menu_item)->parent)
	gtk_widget_queue_resize (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
366 367 368
    }
}

369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
/**
 * gtk_menu_item_get_submenu:
 * @menu_item: a #GtkMenuItem
 *
 * Gets the submenu underneath this menu item, if any. See
 * gtk_menu_item_set_submenu().
 *
 * Return value: submenu for this menu item, or %NULL if none.
 **/
GtkWidget *
gtk_menu_item_get_submenu (GtkMenuItem *menu_item)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);

  return menu_item->submenu;
}

386 387 388 389 390 391 392 393 394
void
gtk_menu_item_remove_submenu (GtkMenuItem         *menu_item)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
      
  if (menu_item->submenu)
    gtk_menu_detach (GTK_MENU (menu_item->submenu));
}

395 396 397
void _gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
				   GtkSubmenuPlacement  placement);

Elliot Lee's avatar
Elliot Lee committed
398
void
Owen Taylor's avatar
Owen Taylor committed
399
_gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
Elliot Lee's avatar
Elliot Lee committed
400 401 402 403 404 405 406 407 408 409
			     GtkSubmenuPlacement  placement)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->submenu_placement = placement;
}

void
gtk_menu_item_select (GtkMenuItem *menu_item)
{
410 411
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
412 413 414 415 416 417
  gtk_item_select (GTK_ITEM (menu_item));
}

void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
418 419
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
420 421 422 423 424 425
  gtk_item_deselect (GTK_ITEM (menu_item));
}

void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
426 427
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Manish Singh's avatar
Manish Singh committed
428
  g_signal_emit (menu_item, menu_item_signals[ACTIVATE], 0);
Elliot Lee's avatar
Elliot Lee committed
429 430
}

431 432
void
gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
433
				   gint        *requisition)
434 435 436
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

Manish Singh's avatar
Manish Singh committed
437
  g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_REQUEST], 0, requisition);
438 439 440 441
}

void
gtk_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
442
				    gint         allocation)
443 444 445
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

Manish Singh's avatar
Manish Singh committed
446
  g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_ALLOCATE], 0, allocation);
447 448
}

449 450 451 452 453 454 455 456 457 458
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
				   gpointer data)
{
  guint *width = data;

  if (GTK_IS_ACCEL_LABEL (widget))
    {
      guint w;

459
      w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
460 461 462 463 464 465 466
      *width = MAX (*width, w);
    }
  else if (GTK_IS_CONTAINER (widget))
    gtk_container_foreach (GTK_CONTAINER (widget),
			   gtk_menu_item_accel_width_foreach,
			   data);
}
Elliot Lee's avatar
Elliot Lee committed
467

468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487
static gint
get_minimum_width (GtkWidget *widget)
{
  PangoContext *context;
  PangoFontMetrics *metrics;
  gint height;

  context = gtk_widget_get_pango_context (widget);
  metrics = pango_context_get_metrics (context,
				       widget->style->font_desc,
				       pango_context_get_language (context));

  height = pango_font_metrics_get_ascent (metrics) +
      pango_font_metrics_get_descent (metrics);
  
  pango_font_metrics_unref (metrics);

  return PANGO_PIXELS (7 * height);
}

Elliot Lee's avatar
Elliot Lee committed
488 489 490 491
static void
gtk_menu_item_size_request (GtkWidget      *widget,
			    GtkRequisition *requisition)
{
Tim Janik's avatar
Tim Janik committed
492
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
493
  GtkBin *bin;
494
  guint accel_width;
495
  guint horizontal_padding;
Elliot Lee's avatar
Elliot Lee committed
496 497 498 499

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
  g_return_if_fail (requisition != NULL);

500 501 502 503
  gtk_widget_style_get (widget,
 			"horizontal padding", &horizontal_padding,
			NULL);
  
Elliot Lee's avatar
Elliot Lee committed
504
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
505
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
506 507

  requisition->width = (GTK_CONTAINER (widget)->border_width +
508
			widget->style->xthickness + horizontal_padding) * 2;
Elliot Lee's avatar
Elliot Lee committed
509
  requisition->height = (GTK_CONTAINER (widget)->border_width +
510
			 widget->style->ythickness) * 2;
Elliot Lee's avatar
Elliot Lee committed
511 512 513

  if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
    {
514 515 516
      GtkRequisition child_requisition;
      
      gtk_widget_size_request (bin->child, &child_requisition);
Elliot Lee's avatar
Elliot Lee committed
517

518 519
      requisition->width += child_requisition.width;
      requisition->height += child_requisition.height;
520

521
      if (menu_item->submenu && menu_item->show_submenu_indicator)
522 523 524 525 526 527 528 529 530
	{
	  guint arrow_spacing;
	  
	  gtk_widget_style_get (widget,
				"arrow_spacing", &arrow_spacing,
				NULL);

	  requisition->width += child_requisition.height;
	  requisition->width += arrow_spacing;
531 532

	  requisition->width = MAX (requisition->width, get_minimum_width (widget));
533 534 535 536 537 538
	}
    }
  else
    {
      /* separator item */
      requisition->height += 4;
539
    }
540 541 542 543 544 545

  accel_width = 0;
  gtk_container_foreach (GTK_CONTAINER (menu_item),
			 gtk_menu_item_accel_width_foreach,
			 &accel_width);
  menu_item->accelerator_width = accel_width;
Elliot Lee's avatar
Elliot Lee committed
546 547 548 549 550 551
}

static void
gtk_menu_item_size_allocate (GtkWidget     *widget,
			     GtkAllocation *allocation)
{
Tim Janik's avatar
Tim Janik committed
552
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
553 554
  GtkBin *bin;
  GtkAllocation child_allocation;
555
  GtkTextDirection direction;
Elliot Lee's avatar
Elliot Lee committed
556 557 558 559

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
  g_return_if_fail (allocation != NULL);

Tim Janik's avatar
Tim Janik committed
560
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
561
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
562
  
563 564
  direction = gtk_widget_get_direction (widget);

Tim Janik's avatar
Tim Janik committed
565
  widget->allocation = *allocation;
Elliot Lee's avatar
Elliot Lee committed
566 567 568

  if (bin->child)
    {
569
      GtkRequisition child_requisition;
570 571 572 573 574
      guint horizontal_padding;

      gtk_widget_style_get (widget,
			    "horizontal_padding", &horizontal_padding,
			    NULL);
575
      
Elliot Lee's avatar
Elliot Lee committed
576
      child_allocation.x = (GTK_CONTAINER (widget)->border_width +
577
                            widget->style->xthickness +
578
			    horizontal_padding);
Owen Taylor's avatar
Owen Taylor committed
579
      child_allocation.y = (GTK_CONTAINER (widget)->border_width +
580
			    widget->style->ythickness);
581 582
      child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
      child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
583 584
      if (direction == GTK_TEXT_DIR_LTR)
	child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
Tim Janik's avatar
Tim Janik committed
585
      child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
586 587
      child_allocation.x += widget->allocation.x;
      child_allocation.y += widget->allocation.y;
588 589

      gtk_widget_get_child_requisition (bin->child, &child_requisition);
590 591 592 593 594 595 596
      if (menu_item->submenu && menu_item->show_submenu_indicator) 
	{
	  if (direction == GTK_TEXT_DIR_RTL)
	    child_allocation.x += child_requisition.height;
	  child_allocation.width -= child_requisition.height;
	}
      
597 598 599
      if (child_allocation.width < 1)
	child_allocation.width = 1;

Elliot Lee's avatar
Elliot Lee committed
600 601 602
      gtk_widget_size_allocate (bin->child, &child_allocation);
    }

Tim Janik's avatar
Tim Janik committed
603
  if (GTK_WIDGET_REALIZED (widget))
604
    gdk_window_move_resize (menu_item->event_window,
Tim Janik's avatar
Tim Janik committed
605 606
                            allocation->x, allocation->y,
                            allocation->width, allocation->height);
Elliot Lee's avatar
Elliot Lee committed
607

Tim Janik's avatar
Tim Janik committed
608 609
  if (menu_item->submenu)
    gtk_menu_reposition (GTK_MENU (menu_item->submenu));
Elliot Lee's avatar
Elliot Lee committed
610 611
}

612 613 614 615 616 617 618 619 620 621
static void
gtk_menu_item_realize (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  GdkWindowAttr attributes;
  gint attributes_mask;

  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);

  widget->window = gtk_widget_get_parent_window (widget);
Manish Singh's avatar
Manish Singh committed
622
  g_object_ref (widget->window);
623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662
  
  attributes.x = widget->allocation.x;
  attributes.y = widget->allocation.y;
  attributes.width = widget->allocation.width;
  attributes.height = widget->allocation.height;
  attributes.window_type = GDK_WINDOW_CHILD;
  attributes.wclass = GDK_INPUT_ONLY;
  attributes.event_mask = (gtk_widget_get_events (widget) |
			   GDK_BUTTON_PRESS_MASK |
			   GDK_BUTTON_RELEASE_MASK |
			   GDK_ENTER_NOTIFY_MASK |
			   GDK_LEAVE_NOTIFY_MASK |
			   GDK_POINTER_MOTION_MASK);

  attributes_mask = GDK_WA_X | GDK_WA_Y;
  menu_item->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
  gdk_window_set_user_data (menu_item->event_window, widget);

  widget->style = gtk_style_attach (widget->style, widget->window);
}

static void
gtk_menu_item_unrealize (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);

  gdk_window_set_user_data (menu_item->event_window, NULL);
  gdk_window_destroy (menu_item->event_window);
  menu_item->event_window = NULL;
  
  if (GTK_WIDGET_CLASS (parent_class)->unrealize)
    (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}

static void
gtk_menu_item_map (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  
  GTK_WIDGET_CLASS (parent_class)->map (widget);
663 664

  gdk_window_show (menu_item->event_window);
665 666 667 668 669 670 671 672 673 674 675 676
}

static void
gtk_menu_item_unmap (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
    
  gdk_window_hide (menu_item->event_window);

  GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}

Elliot Lee's avatar
Elliot Lee committed
677 678 679 680 681 682
static void
gtk_menu_item_paint (GtkWidget    *widget,
		     GdkRectangle *area)
{
  GtkMenuItem *menu_item;
  GtkStateType state_type;
683
  GtkShadowType shadow_type, selected_shadow_type;
Elliot Lee's avatar
Elliot Lee committed
684 685
  gint width, height;
  gint x, y;
686
  gint border_width = GTK_CONTAINER (widget)->border_width;
Elliot Lee's avatar
Elliot Lee committed
687 688 689 690 691 692

  if (GTK_WIDGET_DRAWABLE (widget))
    {
      menu_item = GTK_MENU_ITEM (widget);

      state_type = widget->state;
693
      
694 695 696 697
      x = widget->allocation.x + border_width;
      y = widget->allocation.y + border_width;
      width = widget->allocation.width - border_width * 2;
      height = widget->allocation.height - border_width * 2;
698
      
Elliot Lee's avatar
Elliot Lee committed
699 700
      if ((state_type == GTK_STATE_PRELIGHT) &&
	  (GTK_BIN (menu_item)->child))
701 702 703 704 705 706 707 708 709 710 711 712
	{
	  gtk_widget_style_get (widget,
				"selected_shadow_type", &selected_shadow_type,
				NULL);
	  gtk_paint_box (widget->style,
			 widget->window,
			 GTK_STATE_PRELIGHT,
			 selected_shadow_type,
			 area, widget, "menuitem",
			 x, y, width, height);
	}
  
Tim Janik's avatar
Tim Janik committed
713
      if (menu_item->submenu && menu_item->show_submenu_indicator)
Elliot Lee's avatar
Elliot Lee committed
714
	{
715
	  GtkRequisition child_requisition;
716
	  gint arrow_x, arrow_y;
717 718
	  gint arrow_size;
	  gint arrow_extent;
719
	  guint horizontal_padding;
720 721
	  GtkTextDirection direction;
	  GtkArrowType arrow_type;
722

723 724
	  direction = gtk_widget_get_direction (widget);
      
725 726 727 728
 	  gtk_widget_style_get (widget,
 				"horizontal_padding", &horizontal_padding,
 				NULL);
 	  
729 730 731 732
	  gtk_widget_get_child_requisition (GTK_BIN (menu_item)->child,
					    &child_requisition);

	  arrow_size = child_requisition.height - 2 * widget->style->ythickness;
733
	  arrow_extent = arrow_size * 0.8;
734
	  
Elliot Lee's avatar
Elliot Lee committed
735 736 737 738
	  shadow_type = GTK_SHADOW_OUT;
	  if (state_type == GTK_STATE_PRELIGHT)
	    shadow_type = GTK_SHADOW_IN;

739 740 741 742 743 744 745 746 747 748
	  if (direction == GTK_TEXT_DIR_LTR)
	    {
	      arrow_x = x + width - horizontal_padding - arrow_extent;
	      arrow_type = GTK_ARROW_RIGHT;
	    }
	  else
	    {
	      arrow_x = x + horizontal_padding;
	      arrow_type = GTK_ARROW_LEFT;
	    }
749

750 751
	  arrow_y = y + (height - arrow_extent) / 2;

752 753 754
	  gtk_paint_arrow (widget->style, widget->window,
			   state_type, shadow_type, 
			   area, widget, "menuitem", 
755
			   arrow_type, TRUE,
756 757
			   arrow_x, arrow_y,
			   arrow_extent, arrow_extent);
Elliot Lee's avatar
Elliot Lee committed
758 759 760
	}
      else if (!GTK_BIN (menu_item)->child)
	{
761 762 763 764 765 766
	  guint horizontal_padding;

	  gtk_widget_style_get (widget,
				"horizontal_padding", &horizontal_padding,
				NULL);
	  
767 768
	  gtk_paint_hline (widget->style, widget->window, GTK_STATE_NORMAL,
			   area, widget, "menuitem",
769 770 771 772
			   widget->allocation.x + horizontal_padding + widget->style->xthickness,
			   widget->allocation.x + widget->allocation.width - horizontal_padding - widget->style->xthickness - 1,
			   widget->allocation.y + (widget->allocation.height -
						   widget->style->ythickness) / 2);
Elliot Lee's avatar
Elliot Lee committed
773 774 775 776 777 778 779 780 781 782 783 784 785 786 787
	}
    }
}

static gint
gtk_menu_item_expose (GtkWidget      *widget,
		      GdkEventExpose *event)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  if (GTK_WIDGET_DRAWABLE (widget))
    {
      gtk_menu_item_paint (widget, &event->area);

788
      (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
Elliot Lee's avatar
Elliot Lee committed
789 790 791 792 793
    }

  return FALSE;
}

794 795 796 797 798 799 800 801 802 803 804 805 806
static gint
get_popup_delay (GtkMenuItem *menu_item)
{
  GtkWidget *parent = GTK_WIDGET (menu_item)->parent;

  if (GTK_IS_MENU_SHELL (parent))
    {
      return _gtk_menu_shell_get_popup_delay (GTK_MENU_SHELL (parent));
    }
  else
    {
      gint popup_delay;
      
807
      g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_item)),
808 809 810 811 812 813 814
		    "gtk-menu-popup-delay", &popup_delay,
		    NULL);

      return popup_delay;
    }
}

Elliot Lee's avatar
Elliot Lee committed
815 816 817 818 819 820 821 822 823
static void
gtk_real_menu_item_select (GtkItem *item)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (item));

  menu_item = GTK_MENU_ITEM (item);

824 825
  if (menu_item->submenu)
    {
826
      gint popup_delay;
827

828
      if (menu_item->timer)
829
	g_source_remove (menu_item->timer);
830 831 832 833

      popup_delay = get_popup_delay (menu_item);
      
      if (popup_delay > 0)
834
	{
835 836
	  GdkEvent *event = gtk_get_current_event ();
	  
837 838 839
	  menu_item->timer = g_timeout_add (popup_delay,
					    gtk_menu_item_select_timeout,
					    menu_item);
840 841 842 843 844 845
	  if (event &&
	      event->type != GDK_BUTTON_PRESS &&
	      event->type != GDK_ENTER_NOTIFY)
	    menu_item->timer_from_keypress = TRUE;
	  else
	    menu_item->timer_from_keypress = FALSE;
846 847

	  if (event)
848
	    gdk_event_free (event);
849
	}
850
      else
851
	gtk_menu_item_popup_submenu (menu_item);
852
    }
853
  
Elliot Lee's avatar
Elliot Lee committed
854
  gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_PRELIGHT);
Soeren Sandmann's avatar
Soeren Sandmann committed
855
  gtk_widget_queue_draw (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
856 857 858 859 860 861 862 863 864 865 866 867 868 869
}

static void
gtk_real_menu_item_deselect (GtkItem *item)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (item));

  menu_item = GTK_MENU_ITEM (item);

  if (menu_item->submenu)
    {
      if (menu_item->timer)
870
	{
871
	  g_source_remove (menu_item->timer);
872 873
	  menu_item->timer = 0;
	}
Elliot Lee's avatar
Elliot Lee committed
874 875 876 877 878
      else
	gtk_menu_popdown (GTK_MENU (menu_item->submenu));
    }

  gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_NORMAL);
Soeren Sandmann's avatar
Soeren Sandmann committed
879
  gtk_widget_queue_draw (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
880 881
}

882
static gboolean
883
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
884 885
				 gboolean   group_cycling)
{
886 887 888 889
  if (group_cycling &&
      widget->parent &&
      GTK_IS_MENU_SHELL (widget->parent) &&
      GTK_MENU_SHELL (widget->parent)->active)
890
    {
891 892
      gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent),
				  widget);
893 894
    }
  else
Manish Singh's avatar
Manish Singh committed
895
    g_signal_emit (widget, menu_item_signals[ACTIVATE_ITEM], 0);
896 897 898 899 900
  
  return TRUE;
}


901 902 903 904
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
  GtkWidget *widget;
905
  GtkMenuShell *submenu; 
906 907 908 909 910 911 912 913 914 915 916 917 918 919 920

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  widget = GTK_WIDGET (menu_item);
  
  if (widget->parent &&
      GTK_IS_MENU_SHELL (widget->parent))
    {
      if (menu_item->submenu == NULL)
	gtk_menu_shell_activate_item (GTK_MENU_SHELL (widget->parent),
				      widget, TRUE);
      else
	{
	  GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget->parent);

921
	  _gtk_menu_shell_activate (menu_shell);
922

923 924 925
	  gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget); 
	  gtk_menu_item_popup_submenu (widget); 

926
	  gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu), TRUE);
927
	  submenu = GTK_MENU_SHELL (menu_item->submenu);
928 929 930
	}
    }
}
931 932
static void
gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
933
					gint        *requisition)
934 935 936 937 938 939 940 941
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  *requisition = 0;
}

static void
gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
942
					 gint         allocation)
943 944 945 946 947
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->toggle_size = allocation;
}
948

Elliot Lee's avatar
Elliot Lee committed
949 950 951
static gint
gtk_menu_item_select_timeout (gpointer data)
{
952
  GtkMenuItem *menu_item;
953
  GtkWidget *parent;
954
  
955
  GDK_THREADS_ENTER ();
956

957
  menu_item = GTK_MENU_ITEM (data);
958 959 960 961 962 963 964 965 966

  parent = GTK_WIDGET (menu_item)->parent;

  if (parent && GTK_IS_MENU_SHELL (parent) && GTK_MENU_SHELL (parent)->active)
    {
      gtk_menu_item_popup_submenu (data);
      if (menu_item->timer_from_keypress && menu_item->submenu)
	GTK_MENU_SHELL (menu_item->submenu)->ignore_enter = TRUE;
    }
967 968 969 970 971 972 973

  GDK_THREADS_LEAVE ();

  return FALSE;  
}

static void
974
gtk_menu_item_popup_submenu (gpointer data)
975
{
976
  GtkWidget *widget;
977 978
  GtkMenuItem *menu_item;

979 980
  widget = GTK_WIDGET (data);
  menu_item = GTK_MENU_ITEM (widget);
981 982

  if (menu_item->timer)
983
    g_source_remove (menu_item->timer);
Elliot Lee's avatar
Elliot Lee committed
984 985
  menu_item->timer = 0;

986
  if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu))
987 988 989 990 991 992 993
    gtk_menu_popup (GTK_MENU (menu_item->submenu),
		    widget->parent,
		    widget,
		    gtk_menu_item_position_menu,
		    menu_item,
		    GTK_MENU_SHELL (widget->parent)->button,
		    0);
Elliot Lee's avatar
Elliot Lee committed
994 995
}

996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
static void
get_offsets (GtkMenu *menu,
	     gint    *horizontal_offset,
	     gint    *vertical_offset)
{
  gint vertical_padding;
  
  gtk_widget_style_get (GTK_WIDGET (menu),
			"horizontal_offset", horizontal_offset,
			"vertical_offset", vertical_offset,
			"vertical_padding", &vertical_padding,
			NULL);

  *vertical_offset -= GTK_WIDGET (menu)->style->ythickness;
  *vertical_offset -= vertical_padding;
}

Elliot Lee's avatar
Elliot Lee committed
1013 1014 1015 1016
static void
gtk_menu_item_position_menu (GtkMenu  *menu,
			     gint     *x,
			     gint     *y,
1017
			     gboolean *push_in,
Elliot Lee's avatar
Elliot Lee committed
1018 1019 1020
			     gpointer  user_data)
{
  GtkMenuItem *menu_item;
1021
  GtkWidget *widget;
Tim Janik's avatar
Tim Janik committed
1022
  GtkWidget *parent_menu_item;
1023
  GdkScreen *screen;
Elliot Lee's avatar
Elliot Lee committed
1024 1025
  gint twidth, theight;
  gint tx, ty;
1026
  GtkTextDirection direction;
1027 1028
  GdkRectangle monitor;
  gint monitor_num;
1029 1030 1031
  gint horizontal_offset;
  gint vertical_offset;
  gint parent_xthickness;
Elliot Lee's avatar
Elliot Lee committed
1032 1033 1034 1035 1036 1037

  g_return_if_fail (menu != NULL);
  g_return_if_fail (x != NULL);
  g_return_if_fail (y != NULL);

  menu_item = GTK_MENU_ITEM (user_data);
1038
  widget = GTK_WIDGET (user_data);
Elliot Lee's avatar
Elliot Lee committed
1039

1040 1041 1042
  if (push_in)
    *push_in = FALSE;

1043 1044
  direction = gtk_widget_get_direction (widget);

Elliot Lee's avatar
Elliot Lee committed
1045 1046 1047
  twidth = GTK_WIDGET (menu)->requisition.width;
  theight = GTK_WIDGET (menu)->requisition.height;

1048
  screen = gtk_widget_get_screen (widget);
1049
  monitor_num = gdk_screen_get_monitor_at_window (screen, menu_item->event_window);
1050 1051 1052
  if (monitor_num < 0)
    monitor_num = 0;
  gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
Elliot Lee's avatar
Elliot Lee committed
1053

1054
  if (!gdk_window_get_origin (widget->window, &tx, &ty))
Owen Taylor's avatar
Owen Taylor committed
1055 1056 1057 1058
    {
      g_warning ("Menu not on screen");
      return;
    }
Elliot Lee's avatar
Elliot Lee committed
1059

1060 1061 1062
  tx += widget->allocation.x;
  ty += widget->allocation.y;

1063 1064
  get_offsets (menu, &horizontal_offset, &vertical_offset);
  
Elliot Lee's avatar
Elliot Lee committed
1065 1066 1067
  switch (menu_item->submenu_placement)
    {
    case GTK_TOP_BOTTOM:
1068 1069 1070 1071 1072 1073 1074 1075
      if (direction == GTK_TEXT_DIR_LTR)
	menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
      else 
	{
	  menu_item->submenu_direction = GTK_DIRECTION_LEFT;
	  tx += widget->allocation.width - twidth;
	}

1076
      if ((ty + widget->allocation.height + theight) <= monitor.y + monitor.height)
1077
	ty += widget->allocation.height;
1078
      else if ((ty - theight) >= monitor.y)
Elliot Lee's avatar
Elliot Lee committed
1079
	ty -= theight;
1080
      else if (monitor.y + monitor.height - (ty + widget->allocation.height) > ty)
1081
	ty += widget->allocation.height;
1082 1083
      else
	ty -= theight;
Elliot Lee's avatar
Elliot Lee committed
1084 1085 1086
      break;

    case GTK_LEFT_RIGHT:
1087
      parent_menu_item = GTK_MENU (widget->parent)->parent_menu_item;
1088
      parent_xthickness = widget->parent->style->xthickness;
1089 1090 1091
      if (parent_menu_item && 
	  !GTK_MENU (widget->parent)->torn_off && 
	  !GTK_MENU_SHELL (menu)->active)
Tim Janik's avatar
Tim Janik committed
1092
	menu_item->submenu_direction = GTK_MENU_ITEM (parent_menu_item)->submenu_direction;
1093 1094 1095 1096
      else if (direction == GTK_TEXT_DIR_LTR)
	menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
      else
	menu_item->submenu_direction = GTK_DIRECTION_LEFT;
Elliot Lee's avatar
Elliot Lee committed
1097 1098 1099 1100

      switch (menu_item->submenu_direction)
	{
	case GTK_DIRECTION_LEFT:
1101 1102
	  if ((tx - twidth - parent_xthickness - horizontal_offset) >= monitor.x)
	    tx -= twidth + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1103 1104 1105
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
1106
	      tx += widget->allocation.width + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1107 1108 1109 1110
	    }
	  break;

	case GTK_DIRECTION_RIGHT:
1111 1112
	  if ((tx + widget->allocation.width + parent_xthickness + horizontal_offset + twidth) <= monitor.x + monitor.width)
	    tx += widget->allocation.width + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1113 1114 1115
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_LEFT;
1116
	      tx -= twidth + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1117 1118 1119 1120
	    }
	  break;
	}

1121 1122
      ty += vertical_offset;
      
1123
      /* If the height of the menu doesn't fit we move it upward. */
1124
      ty = CLAMP (ty, monitor.y, MAX (monitor.y, monitor.y + monitor.height - theight));
Elliot Lee's avatar
Elliot Lee committed
1125 1126 1127
      break;
    }

1128 1129
  /* If we have negative, tx, here it is because we can't get
   * the menu all the way on screen. Favor the left portion.
1130
   */
1131
  *x = CLAMP (tx, monitor.x, MAX (monitor.x, monitor.x + monitor.width - twidth));
1132
  *y = ty;
1133 1134

  gtk_menu_set_monitor (menu, monitor_num);
Elliot Lee's avatar
Elliot Lee committed
1135 1136
}

1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148
/**
 * gtk_menu_item_set_right_justified:
 * @menu_item: a #GtkMenuItem.
 * @right_justified: if %TRUE the menu item will appear at the 
 *   far right if added to a menu bar.
 * 
 * Sets whether the menu item appears justified at the right
 * side of a menu bar. This was traditionally done for "Help" menu
 * items, but is now considered a bad idea. (If the widget
 * layout is reversed for a right-to-left language like Hebrew
 * or Arabic, right-justified-menu-items appear at the left.)
 **/
Elliot Lee's avatar
Elliot Lee committed
1149
void
1150 1151
gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
				   gboolean     right_justified)
Elliot Lee's avatar
Elliot Lee committed
1152
{
1153 1154 1155
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  right_justified = right_justified != FALSE;
Elliot Lee's avatar
Elliot Lee committed
1156

1157 1158 1159
  if (right_justified != menu_item->right_justify)
    {
      menu_item->right_justify = right_justified;
1160
      gtk_widget_queue_resize (GTK_WIDGET (menu_item));
1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179
    }
}

/**
 * gtk_menu_item_get_right_justified:
 * @menu_item: a #GtkMenuItem
 * 
 * Gets whether the menu item appears justified at the right
 * side of the menu bar.
 * 
 * Return value: %TRUE if the menu item will appear at the
 *   far right if added to a menu bar.
 **/
gboolean
gtk_menu_item_get_right_justified (GtkMenuItem *menu_item)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
  
  return menu_item->right_justify;
Elliot Lee's avatar
Elliot Lee committed
1180
}
1181

1182

1183 1184 1185
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
1186
  GtkMenuItem *menu_item;
1187 1188

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1189

1190 1191
  menu_item = GTK_MENU_ITEM (widget);

1192
  /* show children including submenu */
1193 1194
  if (menu_item->submenu)
    gtk_widget_show_all (menu_item->submenu);
1195 1196
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);

1197 1198 1199 1200 1201 1202
  gtk_widget_show (widget);
}

static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
1203
  GtkMenuItem *menu_item;
1204 1205 1206 1207

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  gtk_widget_hide (widget);
1208 1209 1210 1211 1212

  menu_item = GTK_MENU_ITEM (widget);

  /* hide children including submenu */
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
1213 1214
  if (menu_item->submenu)
    gtk_widget_hide_all (menu_item->submenu);
1215 1216
}

1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
static void
gtk_menu_item_accel_name_foreach (GtkWidget *widget,
				  gpointer data)
{
  const gchar **path_p = data;

  if (!*path_p)
    {
      if (GTK_IS_LABEL (widget))
	{
	  *path_p = gtk_label_get_text (GTK_LABEL (widget));
	  if (*path_p && (*path_p)[0] == 0)
	    *path_p = NULL;
	}
      else if (GTK_IS_CONTAINER (widget))
	gtk_container_foreach (GTK_CONTAINER (widget),
			       gtk_menu_item_accel_name_foreach,
			       data);
    }
}

1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
static void
gtk_menu_item_parent_set (GtkWidget *widget,
			  GtkWidget *previous_parent)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  GtkMenu *menu = GTK_IS_MENU (widget->parent) ? GTK_MENU (widget->parent) : NULL;

  if (menu)
    _gtk_menu_item_refresh_accel_path (menu_item,
				       menu->accel_path,
				       menu->accel_group,
				       TRUE);

  if (GTK_WIDGET_CLASS (parent_class)->parent_set)
    GTK_WIDGET_CLASS (parent_class)->parent_set (widget, previous_parent);
}

1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
void
_gtk_menu_item_refresh_accel_path (GtkMenuItem   *menu_item,
				   const gchar   *prefix,
				   GtkAccelGroup *accel_group,
				   gboolean       group_changed)
{
  const gchar *path;
  GtkWidget *widget;

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1265
  g_return_if_fail (!accel_group || GTK_IS_ACCEL_GROUP (accel_group));
1266 1267 1268

  widget = GTK_WIDGET (menu_item);

1269 1270
  if (!accel_group)
    {
1271
      gtk_widget_set_accel_path (widget, NULL, NULL);
1272 1273 1274
      return;
    }

1275
  path = _gtk_widget_get_accel_path (widget, NULL);
1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290
  if (!path)					/* no active accel_path yet */
    {
      path = menu_item->accel_path;
      if (!path && prefix)
	{
	  gchar *postfix = NULL;

	  /* try to construct one from label text */
	  gtk_container_foreach (GTK_CONTAINER (menu_item),
				 gtk_menu_item_accel_name_foreach,
				 &postfix);
	  menu_item->accel_path = postfix ? g_strconcat (prefix, "/", postfix, NULL) : NULL;
	  path = menu_item->accel_path;
	}
      if (path)
1291
	gtk_widget_set_accel_path (widget, path, accel_group);
1292 1293
    }
  else if (group_changed)			/* reinstall accelerators */
1294
    gtk_widget_set_accel_path (widget, path, accel_group);
1295 1296 1297 1298 1299
}

/**
 * gtk_menu_item_set_accel_path
 * @menu_item:  a valid #GtkMenuItem
1300 1301
 * @accel_path: accelerator path, corresponding to this menu item's
 *              functionality, or %NULL to unset the current path.
1302 1303 1304 1305 1306 1307 1308 1309
 *
 * Set the accelerator path on @menu_item, through which runtime changes of the
 * menu item's accelerator caused by the user can be identified and saved to
 * persistant storage (see gtk_accel_map_save() on this).
 * To setup a default accelerator for this menu item, call
 * gtk_accel_map_add_entry() with the same @accel_path.
 * See also gtk_accel_map_add_entry() on the specifics of accelerator paths,
 * and gtk_menu_set_accel_path() for a more convenient variant of this function.
1310 1311 1312 1313
 *
 * This function is basically a convenience wrapper that handles calling
 * gtk_widget_set_accel_path() with the appropriate accelerator group for
 * the menu item.
Matthias Clasen's avatar
Matthias Clasen committed
1314 1315 1316
 *
 * Note that you do need to set an accelerator on the parent menu with
 * gtk_menu_set_accel_group() for this to work.
1317 1318 1319 1320 1321 1322 1323 1324
 */
void
gtk_menu_item_set_accel_path (GtkMenuItem *menu_item,
			      const gchar *accel_path)
{
  GtkWidget *widget;

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1325 1326
  g_return_if_fail (accel_path == NULL ||
		    (accel_path[0] == '<' && strchr (accel_path, '/')));
1327 1328 1329 1330 1331 1332 1333 1334

  widget = GTK_WIDGET (menu_item);

  /* store new path */
  g_free (menu_item->accel_path);
  menu_item->accel_path = g_strdup (accel_path);

  /* forget accelerators associated with old path */
1335
  gtk_widget_set_accel_path (widget, NULL, NULL);
1336 1337

  /* install accelerators associated with new path */
1338
  if (widget->parent && GTK_IS_MENU (widget->parent))
1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
    {
      GtkMenu *menu = GTK_MENU (widget->parent);

      if (menu->accel_group)
	_gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
					   NULL,
					   menu->accel_group,
					   FALSE);
    }
}

1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365
static void
gtk_menu_item_forall (GtkContainer *container,
		      gboolean      include_internals,
		      GtkCallback   callback,
		      gpointer      callback_data)
{
  GtkBin *bin;
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (container));
  g_return_if_fail (callback != NULL);

  bin = GTK_BIN (container);
  menu_item = GTK_MENU_ITEM (container);

  if (bin->child)
1366
    callback (bin->child, callback_data);
1367
}
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380

gboolean
_gtk_menu_item_is_selectable (GtkWidget *menu_item)
{
  if ((!GTK_BIN (menu_item)->child &&
       G_OBJECT_TYPE (menu_item) == GTK_TYPE_MENU_ITEM) ||
      GTK_IS_SEPARATOR_MENU_ITEM (menu_item) ||
      !GTK_WIDGET_IS_SENSITIVE (menu_item) ||
      !GTK_WIDGET_VISIBLE (menu_item))
    return FALSE;

  return TRUE;
}