gtkmenuitem.c 41.1 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

29
#include <config.h>
Elliot Lee's avatar
Elliot Lee committed
30
#include <string.h>
31

Tim Janik's avatar
Tim Janik committed
32
#include "gtkaccellabel.h"
Elliot Lee's avatar
Elliot Lee committed
33
#include "gtkmain.h"
34
#include "gtkmarshalers.h"
Elliot Lee's avatar
Elliot Lee committed
35
#include "gtkmenu.h"
36
#include "gtkmenubar.h"
Elliot Lee's avatar
Elliot Lee committed
37
#include "gtkmenuitem.h"
38
#include "gtkseparatormenuitem.h"
39
#include "gtkprivate.h"
40
#include "gtkalias.h"
Elliot Lee's avatar
Elliot Lee committed
41 42 43 44 45

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

enum {
  ACTIVATE,
46
  ACTIVATE_ITEM,
47 48
  TOGGLE_SIZE_REQUEST,
  TOGGLE_SIZE_ALLOCATE,
Elliot Lee's avatar
Elliot Lee committed
49 50 51 52 53 54 55
  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);
56
static void gtk_menu_item_finalize       (GObject          *object);
Elliot Lee's avatar
Elliot Lee committed
57 58 59 60
static void gtk_menu_item_size_request   (GtkWidget        *widget,
					  GtkRequisition   *requisition);
static void gtk_menu_item_size_allocate  (GtkWidget        *widget,
					  GtkAllocation    *allocation);
61 62 63 64
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
65 66 67 68
static void gtk_menu_item_paint          (GtkWidget        *widget,
					  GdkRectangle     *area);
static gint gtk_menu_item_expose         (GtkWidget        *widget,
					  GdkEventExpose   *event);
69 70
static void gtk_menu_item_parent_set     (GtkWidget        *widget,
					  GtkWidget        *previous_parent);
71

72

73 74 75 76
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,
77
						     gint        *requisition);
78
static void gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
79
						     gint         allocation);
80
static gboolean gtk_menu_item_mnemonic_activate     (GtkWidget   *widget,
81
						     gboolean     group_cycling);
82

Elliot Lee's avatar
Elliot Lee committed
83 84 85 86
static gint gtk_menu_item_select_timeout (gpointer          data);
static void gtk_menu_item_position_menu  (GtkMenu          *menu,
					  gint             *x,
					  gint             *y,
87
					  gboolean         *push_in,
Elliot Lee's avatar
Elliot Lee committed
88
					  gpointer          user_data);
89 90
static void gtk_menu_item_show_all       (GtkWidget        *widget);
static void gtk_menu_item_hide_all       (GtkWidget        *widget);
91 92 93 94
static void gtk_menu_item_forall         (GtkContainer    *container,
					  gboolean         include_internals,
					  GtkCallback      callback,
					  gpointer         callback_data);
Owen Taylor's avatar
Owen Taylor committed
95 96
static gboolean gtk_menu_item_can_activate_accel (GtkWidget *widget,
						  guint      signal_id);
Elliot Lee's avatar
Elliot Lee committed
97

98

Elliot Lee's avatar
Elliot Lee committed
99
static GtkItemClass *parent_class;
100
static guint menu_item_signals[LAST_SIGNAL] = { 0 };
Elliot Lee's avatar
Elliot Lee committed
101

Manish Singh's avatar
Manish Singh committed
102
GType
103
gtk_menu_item_get_type (void)
Elliot Lee's avatar
Elliot Lee committed
104
{
Manish Singh's avatar
Manish Singh committed
105
  static GType menu_item_type = 0;
Elliot Lee's avatar
Elliot Lee committed
106 107 108

  if (!menu_item_type)
    {
109
      static const GTypeInfo menu_item_info =
Elliot Lee's avatar
Elliot Lee committed
110 111
      {
	sizeof (GtkMenuItemClass),
112 113 114 115 116 117 118 119
	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
120 121
      };

Manish Singh's avatar
Manish Singh committed
122 123
      menu_item_type = g_type_register_static (GTK_TYPE_ITEM, "GtkMenuItem",
					       &menu_item_info, 0);
Elliot Lee's avatar
Elliot Lee committed
124 125 126 127 128 129 130 131
    }

  return menu_item_type;
}

static void
gtk_menu_item_class_init (GtkMenuItemClass *klass)
{
132 133 134 135 136
  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
137

138
  parent_class = g_type_class_peek_parent (klass);
Elliot Lee's avatar
Elliot Lee committed
139

140
  gobject_class->finalize = gtk_menu_item_finalize;
141 142 143 144 145 146

  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;
147 148 149 150
  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;
151 152
  widget_class->show_all = gtk_menu_item_show_all;
  widget_class->hide_all = gtk_menu_item_hide_all;
153
  widget_class->mnemonic_activate = gtk_menu_item_mnemonic_activate;
154
  widget_class->parent_set = gtk_menu_item_parent_set;
Owen Taylor's avatar
Owen Taylor committed
155
  widget_class->can_activate_accel = gtk_menu_item_can_activate_accel;
156
  
157 158 159 160 161 162 163 164 165 166 167 168
  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
169
  menu_item_signals[ACTIVATE] =
Manish Singh's avatar
Manish Singh committed
170 171 172 173 174 175 176
    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);
177
  widget_class->activate_signal = menu_item_signals[ACTIVATE];
Elliot Lee's avatar
Elliot Lee committed
178

179
  menu_item_signals[ACTIVATE_ITEM] =
Manish Singh's avatar
Manish Singh committed
180 181 182 183 184 185 186
    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);
187

188
  menu_item_signals[TOGGLE_SIZE_REQUEST] =
Manish Singh's avatar
Manish Singh committed
189 190 191 192 193 194 195 196
    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);
197 198

  menu_item_signals[TOGGLE_SIZE_ALLOCATE] =
Manish Singh's avatar
Manish Singh committed
199 200 201
    g_signal_new ("toggle_size_allocate",
		  G_OBJECT_CLASS_TYPE (gobject_class),
		  G_SIGNAL_RUN_FIRST,
202
 		  G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_allocate),
Manish Singh's avatar
Manish Singh committed
203 204 205 206
		  NULL, NULL,
		  _gtk_marshal_NONE__INT,
		  G_TYPE_NONE, 1,
		  G_TYPE_INT);
207 208

  gtk_widget_class_install_style_property_parser (widget_class,
209
						  g_param_spec_enum ("selected-shadow-type",
210 211 212
								     "Selected Shadow Type",
								     "Shadow type when item is selected",
								     GTK_TYPE_SHADOW_TYPE,
213
								     GTK_SHADOW_NONE,
214
								     GTK_PARAM_READABLE),
215
						  gtk_rc_property_parse_enum);
216 217

  gtk_widget_class_install_style_property (widget_class,
218
					   g_param_spec_int ("horizontal-padding",
219 220 221 222 223
							     "Horizontal Padding",
							     "Padding to left and right of the menu item",
							     0,
							     G_MAXINT,
							     3,
224
							     GTK_PARAM_READABLE));
225 226

  gtk_widget_class_install_style_property (widget_class,
227
					   g_param_spec_int ("toggle-spacing",
228 229 230 231 232
							     "Icon Spacing",
							     "Space between icon and label",
							     0,
							     G_MAXINT,
							     5,
233
							     GTK_PARAM_READABLE));
234 235

  gtk_widget_class_install_style_property (widget_class,
236
					   g_param_spec_int ("arrow-spacing",
237 238 239 240 241
							     "Arrow Spacing",
							     "Space between label and arrow",
							     0,
							     G_MAXINT,
							     10,
242
							     GTK_PARAM_READABLE));
Elliot Lee's avatar
Elliot Lee committed
243 244 245 246 247
}

static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
248 249
  GTK_WIDGET_SET_FLAGS (menu_item, GTK_NO_WINDOW);
  
Elliot Lee's avatar
Elliot Lee committed
250 251
  menu_item->submenu = NULL;
  menu_item->toggle_size = 0;
252
  menu_item->accelerator_width = 0;
Elliot Lee's avatar
Elliot Lee committed
253
  menu_item->show_submenu_indicator = FALSE;
254 255 256 257
  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
258 259 260 261 262 263 264
  menu_item->submenu_placement = GTK_TOP_BOTTOM;
  menu_item->right_justify = FALSE;

  menu_item->timer = 0;
}

GtkWidget*
265
gtk_menu_item_new (void)
Elliot Lee's avatar
Elliot Lee committed
266
{
Manish Singh's avatar
Manish Singh committed
267
  return g_object_new (GTK_TYPE_MENU_ITEM, NULL);
Elliot Lee's avatar
Elliot Lee committed
268 269 270 271 272 273
}

GtkWidget*
gtk_menu_item_new_with_label (const gchar *label)
{
  GtkWidget *menu_item;
Tim Janik's avatar
Tim Janik committed
274
  GtkWidget *accel_label;
Elliot Lee's avatar
Elliot Lee committed
275 276

  menu_item = gtk_menu_item_new ();
Tim Janik's avatar
Tim Janik committed
277 278
  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
279

Tim Janik's avatar
Tim Janik committed
280 281 282
  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
283 284 285 286

  return menu_item;
}

287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304

/**
 * 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
305
  accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
306 307 308 309 310 311 312 313 314 315
  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
316 317 318 319 320 321 322 323 324 325
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)
326
    gtk_widget_destroy (menu_item->submenu);
Elliot Lee's avatar
Elliot Lee committed
327

328 329 330 331 332 333 334 335 336 337 338
  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
339 340
}

341 342 343 344 345 346 347 348 349 350 351 352 353 354
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
355 356 357 358 359
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
			   GtkWidget   *submenu)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
360
  
361
  if (menu_item->submenu != submenu)
Elliot Lee's avatar
Elliot Lee committed
362
    {
363 364
      gtk_menu_item_remove_submenu (menu_item);
      
365
      menu_item->submenu = submenu;
366 367 368 369
      gtk_menu_attach_to_widget (GTK_MENU (submenu),
				 GTK_WIDGET (menu_item),
				 gtk_menu_item_detacher);
      
370 371
      if (GTK_WIDGET (menu_item)->parent)
	gtk_widget_queue_resize (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
372 373 374
    }
}

375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391
/**
 * 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;
}

392 393 394 395 396 397 398 399 400
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));
}

401 402 403
void _gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
				   GtkSubmenuPlacement  placement);

Elliot Lee's avatar
Elliot Lee committed
404
void
Owen Taylor's avatar
Owen Taylor committed
405
_gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
Elliot Lee's avatar
Elliot Lee committed
406 407 408 409 410 411 412 413 414 415
			     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)
{
416 417
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
418 419 420 421 422 423
  gtk_item_select (GTK_ITEM (menu_item));
}

void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
424 425
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
426 427 428 429 430 431
  gtk_item_deselect (GTK_ITEM (menu_item));
}

void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
432 433
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Manish Singh's avatar
Manish Singh committed
434
  g_signal_emit (menu_item, menu_item_signals[ACTIVATE], 0);
Elliot Lee's avatar
Elliot Lee committed
435 436
}

437 438
void
gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
439
				   gint        *requisition)
440 441 442
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

Manish Singh's avatar
Manish Singh committed
443
  g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_REQUEST], 0, requisition);
444 445 446 447
}

void
gtk_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
448
				    gint         allocation)
449 450 451
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

Manish Singh's avatar
Manish Singh committed
452
  g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_ALLOCATE], 0, allocation);
453 454
}

455 456 457 458 459 460 461 462 463 464
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
				   gpointer data)
{
  guint *width = data;

  if (GTK_IS_ACCEL_LABEL (widget))
    {
      guint w;

465
      w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
466 467 468 469 470 471 472
      *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
473

474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493
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
494 495 496 497
static void
gtk_menu_item_size_request (GtkWidget      *widget,
			    GtkRequisition *requisition)
{
Tim Janik's avatar
Tim Janik committed
498
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
499
  GtkBin *bin;
500
  guint accel_width;
501
  guint horizontal_padding;
502 503
  GtkPackDirection pack_dir;
  GtkPackDirection child_pack_dir;
Elliot Lee's avatar
Elliot Lee committed
504 505 506 507

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

508
  gtk_widget_style_get (widget,
509
 			"horizontal-padding", &horizontal_padding,
510 511
			NULL);
  
Elliot Lee's avatar
Elliot Lee committed
512
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
513
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
514

515 516 517 518 519 520 521 522 523 524 525
  if (GTK_IS_MENU_BAR (widget->parent))
    {
      pack_dir = gtk_menu_bar_get_pack_direction (GTK_MENU_BAR (widget->parent));
      child_pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
    }
  else
    {
      pack_dir = GTK_PACK_DIRECTION_LTR;
      child_pack_dir = GTK_PACK_DIRECTION_LTR;
    }

Elliot Lee's avatar
Elliot Lee committed
526
  requisition->width = (GTK_CONTAINER (widget)->border_width +
527
			widget->style->xthickness) * 2;
Elliot Lee's avatar
Elliot Lee committed
528
  requisition->height = (GTK_CONTAINER (widget)->border_width +
529
			 widget->style->ythickness) * 2;
Elliot Lee's avatar
Elliot Lee committed
530

531 532 533 534 535 536 537
  if ((pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL) &&
      (child_pack_dir == GTK_PACK_DIRECTION_LTR || child_pack_dir == GTK_PACK_DIRECTION_RTL))
    requisition->width += 2 * horizontal_padding;
  else if ((pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT) &&
      (child_pack_dir == GTK_PACK_DIRECTION_TTB || child_pack_dir == GTK_PACK_DIRECTION_BTT))
    requisition->height += 2 * horizontal_padding;

Elliot Lee's avatar
Elliot Lee committed
538 539
  if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
    {
540 541 542
      GtkRequisition child_requisition;
      
      gtk_widget_size_request (bin->child, &child_requisition);
Elliot Lee's avatar
Elliot Lee committed
543

544 545
      requisition->width += child_requisition.width;
      requisition->height += child_requisition.height;
546

547
      if (menu_item->submenu && menu_item->show_submenu_indicator)
548 549 550 551
	{
	  guint arrow_spacing;
	  
	  gtk_widget_style_get (widget,
552
				"arrow-spacing", &arrow_spacing,
553 554 555 556
				NULL);

	  requisition->width += child_requisition.height;
	  requisition->width += arrow_spacing;
557 558

	  requisition->width = MAX (requisition->width, get_minimum_width (widget));
559 560 561 562 563 564
	}
    }
  else
    {
      /* separator item */
      requisition->height += 4;
565
    }
566 567 568 569 570 571

  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
572 573 574 575 576 577
}

static void
gtk_menu_item_size_allocate (GtkWidget     *widget,
			     GtkAllocation *allocation)
{
Tim Janik's avatar
Tim Janik committed
578
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
579 580
  GtkBin *bin;
  GtkAllocation child_allocation;
581
  GtkTextDirection direction;
582 583
  GtkPackDirection pack_dir;
  GtkPackDirection child_pack_dir;
Elliot Lee's avatar
Elliot Lee committed
584 585 586 587

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

Tim Janik's avatar
Tim Janik committed
588
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
589
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
590
  
591 592
  direction = gtk_widget_get_direction (widget);

593 594 595 596 597 598 599 600 601 602 603
  if (GTK_IS_MENU_BAR (widget->parent))
    {
      pack_dir = gtk_menu_bar_get_pack_direction (GTK_MENU_BAR (widget->parent));
      child_pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
    }
  else
    {
      pack_dir = GTK_PACK_DIRECTION_LTR;
      child_pack_dir = GTK_PACK_DIRECTION_LTR;
    }
    
Tim Janik's avatar
Tim Janik committed
604
  widget->allocation = *allocation;
Elliot Lee's avatar
Elliot Lee committed
605 606 607

  if (bin->child)
    {
608
      GtkRequisition child_requisition;
609 610 611
      guint horizontal_padding;

      gtk_widget_style_get (widget,
612
			    "horizontal-padding", &horizontal_padding,
613
			    NULL);
614 615 616 617 618 619 620 621 622 623

      child_allocation.x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness;
      child_allocation.y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness;

      if ((pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL) &&
	  (child_pack_dir == GTK_PACK_DIRECTION_LTR || child_pack_dir == GTK_PACK_DIRECTION_RTL))
	child_allocation.x += horizontal_padding;
      else if ((pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT) &&
	       (child_pack_dir == GTK_PACK_DIRECTION_TTB || child_pack_dir == GTK_PACK_DIRECTION_BTT))
	child_allocation.y += horizontal_padding;
624
      
625 626
      child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
      child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
627 628 629 630 631 632 633 634 635 636 637 638 639 640 641

      if (child_pack_dir == GTK_PACK_DIRECTION_LTR ||
	  child_pack_dir == GTK_PACK_DIRECTION_RTL)
	{
	  if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_RTL))
	    child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
	  child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
	}
      else
	{
	  if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_BTT))
	    child_allocation.y += GTK_MENU_ITEM (widget)->toggle_size;
	  child_allocation.height -= GTK_MENU_ITEM (widget)->toggle_size;
	}

642 643
      child_allocation.x += widget->allocation.x;
      child_allocation.y += widget->allocation.y;
644 645

      gtk_widget_get_child_requisition (bin->child, &child_requisition);
646 647 648 649 650 651 652
      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;
	}
      
653 654 655
      if (child_allocation.width < 1)
	child_allocation.width = 1;

Elliot Lee's avatar
Elliot Lee committed
656 657 658
      gtk_widget_size_allocate (bin->child, &child_allocation);
    }

Tim Janik's avatar
Tim Janik committed
659
  if (GTK_WIDGET_REALIZED (widget))
660
    gdk_window_move_resize (menu_item->event_window,
Tim Janik's avatar
Tim Janik committed
661 662
                            allocation->x, allocation->y,
                            allocation->width, allocation->height);
Elliot Lee's avatar
Elliot Lee committed
663

Tim Janik's avatar
Tim Janik committed
664 665
  if (menu_item->submenu)
    gtk_menu_reposition (GTK_MENU (menu_item->submenu));
Elliot Lee's avatar
Elliot Lee committed
666 667
}

668 669 670 671 672 673 674 675 676 677
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
678
  g_object_ref (widget->window);
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718
  
  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);
719 720

  gdk_window_show (menu_item->event_window);
721 722 723 724 725 726 727 728 729 730 731 732
}

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
733 734 735 736 737 738
static void
gtk_menu_item_paint (GtkWidget    *widget,
		     GdkRectangle *area)
{
  GtkMenuItem *menu_item;
  GtkStateType state_type;
739
  GtkShadowType shadow_type, selected_shadow_type;
Elliot Lee's avatar
Elliot Lee committed
740 741
  gint width, height;
  gint x, y;
742
  gint border_width = GTK_CONTAINER (widget)->border_width;
Elliot Lee's avatar
Elliot Lee committed
743 744 745 746 747 748

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

      state_type = widget->state;
749
      
750 751 752 753
      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;
754
      
Elliot Lee's avatar
Elliot Lee committed
755 756
      if ((state_type == GTK_STATE_PRELIGHT) &&
	  (GTK_BIN (menu_item)->child))
757 758
	{
	  gtk_widget_style_get (widget,
759
				"selected-shadow-type", &selected_shadow_type,
760 761 762 763 764 765 766 767 768
				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
769
      if (menu_item->submenu && menu_item->show_submenu_indicator)
Elliot Lee's avatar
Elliot Lee committed
770
	{
771
	  gint arrow_x, arrow_y;
772 773
	  gint arrow_size;
	  gint arrow_extent;
774
	  guint horizontal_padding;
775 776
	  GtkTextDirection direction;
	  GtkArrowType arrow_type;
777 778 779
	  PangoContext *context;
	  PangoFontMetrics *metrics;
	  gint ascent, descent;
780

781 782
	  direction = gtk_widget_get_direction (widget);
      
783
 	  gtk_widget_style_get (widget,
784
 				"horizontal-padding", &horizontal_padding,
785 786
 				NULL);
 	  
787 788 789 790 791 792 793 794 795 796
	  context = gtk_widget_get_pango_context (GTK_BIN (menu_item)->child);
	  metrics = pango_context_get_metrics (context, 
					       GTK_WIDGET (GTK_BIN (menu_item)->child)->style->font_desc,
					       pango_context_get_language (context));
	  
	  ascent = pango_font_metrics_get_ascent (metrics);
	  descent = pango_font_metrics_get_descent (metrics);
	  pango_font_metrics_unref (metrics);
	  
	  arrow_size = PANGO_PIXELS (ascent + descent) - 2 * widget->style->ythickness;
797

798
	  arrow_extent = arrow_size * 0.8;
799
	  
Elliot Lee's avatar
Elliot Lee committed
800 801 802 803
	  shadow_type = GTK_SHADOW_OUT;
	  if (state_type == GTK_STATE_PRELIGHT)
	    shadow_type = GTK_SHADOW_IN;

804 805 806 807 808 809 810 811 812 813
	  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;
	    }
814

815 816
	  arrow_y = y + (height - arrow_extent) / 2;

817 818 819
	  gtk_paint_arrow (widget->style, widget->window,
			   state_type, shadow_type, 
			   area, widget, "menuitem", 
820
			   arrow_type, TRUE,
821 822
			   arrow_x, arrow_y,
			   arrow_extent, arrow_extent);
Elliot Lee's avatar
Elliot Lee committed
823 824 825
	}
      else if (!GTK_BIN (menu_item)->child)
	{
826 827 828
	  guint horizontal_padding;

	  gtk_widget_style_get (widget,
829
				"horizontal-padding", &horizontal_padding,
830 831
				NULL);
	  
832 833
	  gtk_paint_hline (widget->style, widget->window, GTK_STATE_NORMAL,
			   area, widget, "menuitem",
834 835 836 837
			   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
838 839 840 841 842 843 844 845 846 847 848 849 850 851 852
	}
    }
}

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);

853
      (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
Elliot Lee's avatar
Elliot Lee committed
854 855 856 857 858
    }

  return FALSE;
}

859 860 861 862 863 864 865 866 867 868 869 870 871
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;
      
872
      g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_item)),
873 874 875 876 877 878 879
		    "gtk-menu-popup-delay", &popup_delay,
		    NULL);

      return popup_delay;
    }
}

Elliot Lee's avatar
Elliot Lee committed
880 881 882 883 884 885 886 887 888
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);

889 890 891
  if (menu_item->submenu &&
      (!GTK_WIDGET_MAPPED (menu_item->submenu) ||
       GTK_MENU (menu_item->submenu)->tearoff_active))
892
    {
893
      gint popup_delay;
894

895
      if (menu_item->timer)
896 897
	{
	  g_source_remove (menu_item->timer);
898
	  menu_item->timer = 0;
899 900 901 902
	  popup_delay = 0;
	}
      else
	popup_delay = get_popup_delay (menu_item);
903 904
      
      if (popup_delay > 0)
905
	{
906 907
	  GdkEvent *event = gtk_get_current_event ();
	  
908 909 910
	  menu_item->timer = g_timeout_add (popup_delay,
					    gtk_menu_item_select_timeout,
					    menu_item);
911 912 913 914 915 916
	  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;
917 918

	  if (event)
919
	    gdk_event_free (event);
920
	}
921
      else
922
	_gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item));
923
    }
924
  
Elliot Lee's avatar
Elliot Lee committed
925
  gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_PRELIGHT);
Soeren Sandmann's avatar
Soeren Sandmann committed
926
  gtk_widget_queue_draw (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
927 928 929 930 931 932 933 934 935 936 937 938 939 940
}

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)
941
	{
942
	  g_source_remove (menu_item->timer);
943 944
	  menu_item->timer = 0;
	}
Elliot Lee's avatar
Elliot Lee committed
945 946 947 948 949
      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
950
  gtk_widget_queue_draw (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
951 952
}

953
static gboolean
954
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
955 956
				 gboolean   group_cycling)
{
957 958 959 960
  if (group_cycling &&
      widget->parent &&
      GTK_IS_MENU_SHELL (widget->parent) &&
      GTK_MENU_SHELL (widget->parent)->active)
961
    {
962 963
      gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent),
				  widget);
964 965
    }
  else
Manish Singh's avatar
Manish Singh committed
966
    g_signal_emit (widget, menu_item_signals[ACTIVATE_ITEM], 0);
967 968 969 970 971
  
  return TRUE;
}


972 973 974 975
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
  GtkWidget *widget;
976
  GtkMenuShell *submenu; 
977 978 979 980 981 982 983 984 985 986 987 988 989 990 991

  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);

992
	  _gtk_menu_shell_activate (menu_shell);
993

994
	  gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget); 
995
	  _gtk_menu_item_popup_submenu (widget); 
996

997
	  gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu), TRUE);
998
	  submenu = GTK_MENU_SHELL (menu_item->submenu);
999 1000 1001
	}
    }
}
1002 1003
static void
gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
1004
					gint        *requisition)
1005 1006 1007 1008 1009 1010 1011 1012
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  *requisition = 0;
}

static void
gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
1013
					 gint         allocation)
1014 1015 1016 1017 1018
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->toggle_size = allocation;
}
1019

Elliot Lee's avatar
Elliot Lee committed
1020 1021 1022
static gint
gtk_menu_item_select_timeout (gpointer data)
{
1023
  GtkMenuItem *menu_item;
1024
  GtkWidget *parent;
1025
  
1026
  GDK_THREADS_ENTER ();
1027

1028
  menu_item = GTK_MENU_ITEM (data);
1029 1030 1031

  parent = GTK_WIDGET (menu_item)->parent;

Matthias Clasen's avatar
Matthias Clasen committed
1032 1033
  if ((GTK_IS_MENU_SHELL (parent) && GTK_MENU_SHELL (parent)->active) || 
      (GTK_IS_MENU (parent) && GTK_MENU (parent)->torn_off))
1034
    {
1035
      _gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item));
1036 1037 1038
      if (menu_item->timer_from_keypress && menu_item->submenu)
	GTK_MENU_SHELL (menu_item->submenu)->ignore_enter = TRUE;
    }
1039 1040 1041 1042 1043 1044

  GDK_THREADS_LEAVE ();

  return FALSE;  
}

1045 1046
void
_gtk_menu_item_popup_submenu (GtkWidget *widget)
1047 1048 1049
{
  GtkMenuItem *menu_item;

1050
  menu_item = GTK_MENU_ITEM (widget);
1051 1052

  if (menu_item->timer)
1053
    g_source_remove (menu_item->timer);
Elliot Lee's avatar
Elliot Lee committed
1054 1055
  menu_item->timer = 0;

1056
  if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu))
1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
    {
      gboolean take_focus;

      take_focus = gtk_menu_shell_get_take_focus (GTK_MENU_SHELL (widget->parent));
      gtk_menu_shell_set_take_focus (GTK_MENU_SHELL (menu_item->submenu),
                                     take_focus);

      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
1072 1073
}

1074 1075 1076 1077 1078 1079 1080 1081
static void
get_offsets (GtkMenu *menu,
	     gint    *horizontal_offset,
	     gint    *vertical_offset)
{
  gint vertical_padding;
  
  gtk_widget_style_get (GTK_WIDGET (menu),
1082 1083 1084
			"horizontal-offset", horizontal_offset,
			"vertical-offset", vertical_offset,
			"vertical-padding", &vertical_padding,
1085 1086 1087 1088 1089 1090
			NULL);

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

Elliot Lee's avatar
Elliot Lee committed
1091 1092 1093 1094
static void
gtk_menu_item_position_menu (GtkMenu  *menu,
			     gint     *x,
			     gint     *y,
1095
			     gboolean *push_in,
Elliot Lee's avatar
Elliot Lee committed
1096 1097 1098
			     gpointer  user_data)
{
  GtkMenuItem *menu_item;
1099
  GtkWidget *widget;
Tim Janik's avatar
Tim Janik committed
1100
  GtkWidget *parent_menu_item;
1101
  GdkScreen *screen;
Elliot Lee's avatar
Elliot Lee committed
1102 1103
  gint twidth, theight;
  gint tx, ty;
1104
  GtkTextDirection direction;
1105 1106
  GdkRectangle monitor;
  gint monitor_num;
1107 1108 1109
  gint horizontal_offset;
  gint vertical_offset;
  gint parent_xthickness;
Elliot Lee's avatar
Elliot Lee committed
1110 1111 1112 1113 1114 1115

  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);
1116
  widget = GTK_WIDGET (user_data);
Elliot Lee's avatar
Elliot Lee committed
1117

1118 1119 1120
  if (push_in)
    *push_in = FALSE;

1121 1122
  direction = gtk_widget_get_direction (widget);

Elliot Lee's avatar
Elliot Lee committed
1123 1124 1125
  twidth = GTK_WIDGET (menu)->requisition.width;
  theight = GTK_WIDGET (menu)->requisition.height;

1126
  screen = gtk_widget_get_screen (GTK_WIDGET (menu));
1127
  monitor_num = gdk_screen_get_monitor_at_window (screen, menu_item->event_window);
1128 1129 1130
  if (monitor_num < 0)
    monitor_num = 0;
  gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
Elliot Lee's avatar
Elliot Lee committed
1131

1132
  if (!gdk_window_get_origin (widget->window, &tx, &ty))
Owen Taylor's avatar
Owen Taylor committed
1133 1134 1135 1136
    {
      g_warning ("Menu not on screen");
      return;
    }
Elliot Lee's avatar
Elliot Lee committed
1137

1138 1139 1140
  tx += widget->allocation.x;
  ty += widget->allocation.y;

1141 1142
  get_offsets (menu, &horizontal_offset, &vertical_offset);
  
Elliot Lee's avatar
Elliot Lee committed
1143 1144 1145
  switch (menu_item->submenu_placement)
    {
    case GTK_TOP_BOTTOM:
1146 1147 1148 1149 1150 1151 1152 1153
      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;
	}

1154
      if ((ty + widget->allocation.height + theight) <= monitor.y + monitor.height)
1155
	ty += widget->allocation.height;
1156
      else if ((ty - theight) >= monitor.y)
Elliot Lee's avatar
Elliot Lee committed
1157
	ty -= theight;
1158
      else if (monitor.y + monitor.height - (ty + widget->allocation.height) > ty)
1159
	ty += widget->allocation.height;
1160 1161
      else
	ty -= theight;
Elliot Lee's avatar
Elliot Lee committed
1162 1163 1164
      break;

    case GTK_LEFT_RIGHT:
1165 1166 1167 1168
      if (GTK_IS_MENU (widget->parent))
	parent_menu_item = GTK_MENU (widget->parent)->parent_menu_item;
      else
	parent_menu_item = NULL;
1169
      parent_xthickness = widget->parent->style->xthickness;
1170
      if (parent_menu_item && !GTK_MENU (widget->parent)->torn_off)
Tim Janik's avatar
Tim Janik committed
1171
	menu_item->submenu_direction = GTK_MENU_ITEM (parent_menu_item)->submenu_direction;
1172 1173 1174 1175
      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
1176 1177 1178 1179

      switch (menu_item->submenu_direction)
	{
	case GTK_DIRECTION_LEFT:
1180 1181
	  if ((tx - twidth - parent_xthickness - horizontal_offset) >= monitor.x)
	    tx -= twidth + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1182 1183 1184
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
1185
	      tx += widget->allocation.width + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1186 1187 1188 1189
	    }
	  break;

	case GTK_DIRECTION_RIGHT:
1190 1191
	  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
1192 1193 1194
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_LEFT;
1195
	      tx -= twidth + parent_xthickness + horizontal_offset;
Elliot Lee's avatar
Elliot Lee committed
1196 1197 1198 1199
	    }
	  break;
	}

1200 1201
      ty += vertical_offset;
      
1202
      /* If the height of the menu doesn't fit we move it upward. */
1203
      ty = CLAMP (ty, monitor.y, MAX (monitor.y, monitor.y + monitor.height - theight));
Elliot Lee's avatar
Elliot Lee committed
1204 1205 1206
      break;
    }

1207 1208
  /* If we have negative, tx, here it is because we can't get
   * the menu all the way on screen. Favor the left portion.
1209
   */
1210
  *x = CLAMP (tx, monitor.x, MAX (monitor.x, monitor.x + monitor.width - twidth));
1211
  *y = ty;
1212 1213

  gtk_menu_set_monitor (menu, monitor_num);
Elliot Lee's avatar
Elliot Lee committed
1214 1215
}

1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227
/**
 * 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
1228
void
1229 1230
gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
				   gboolean     right_justified)
Elliot Lee's avatar
Elliot Lee committed
1231
{
1232 1233 1234
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  right_justified = right_justified != FALSE;
Elliot Lee's avatar
Elliot Lee committed
1235

1236 1237 1238
  if (right_justified != menu_item->right_justify)
    {
      menu_item->right_justify = right_justified;
1239
      gtk_widget_queue_resize (GTK_WIDGET (menu_item));
1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258
    }
}

/**
 * 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
1259
}
1260

1261

1262 1263 1264
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
1265
  GtkMenuItem *menu_item;
1266 1267

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1268

1269 1270
  menu_item = GTK_MENU_ITEM (widget);

1271
  /* show children including submenu */
1272 1273
  if (menu_item->submenu)
    gtk_widget_show_all (menu_item->submenu);
1274 1275
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);

1276 1277 1278 1279 1280 1281
  gtk_widget_show (widget);
}

static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
1282
  GtkMenuItem *menu_item;
1283 1284 1285 1286

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  gtk_widget_hide (widget);
1287 1288 1289 1290 1291

  menu_item = GTK_MENU_ITEM (widget);

  /* hide children including submenu */
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
1292 1293
  if (menu_item->submenu)
    gtk_widget_hide_all (menu_item->submenu);
1294 1295
}

1296
static gboolean
Owen Taylor's avatar
Owen Taylor committed
1297 1298
gtk_menu_item_can_activate_accel (GtkWidget *widget,
				  guint      signal_id)
1299
{
Owen Taylor's avatar
Owen Taylor committed
1300
  /* Chain to the parent GtkMenu for further checks */
1301 1302 1303 1304
  return (GTK_WIDGET_IS_SENSITIVE (widget) && GTK_WIDGET_VISIBLE (widget) &&
          widget->parent && gtk_widget_can_activate_accel (widget->parent, signal_id));
}