summaryrefslogtreecommitdiffstats
path: root/src/widgets/qmenubar.cpp
blob: 2d158ad711ed8fc25a0b7d4cf8fc1b3b4ac796bc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
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
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
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
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
/****************************************************************************
**
** Implementation of QMenuBar class
**
** Created : 941209
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [email protected].
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

// qmainwindow.h before qmenubar.h because of GCC-2.7.* compatibility
// ### could be reorganised by discarding INCLUDE_MENUITEM_DEF and put
// the relevant declarations in a private header?
#include "qmainwindow.h"
#ifndef QT_NO_MENUBAR
#include "qmenubar.h"
#include "qpopupmenu.h"
#include "qaccel.h"
#include "qpainter.h"
#include "qdrawutil.h"
#include "qapplication.h"
#include "qguardedptr.h"
#include "qlayout.h"
#include "qcleanuphandler.h"
#include "../kernel/qinternal_p.h"
#include "qstyle.h"
#include "qtimer.h"
#if defined(QT_ACCESSIBILITY_SUPPORT)
#include "qaccessible.h"
#endif

class QMenuDataData {
    // attention: also defined in qmenudata.cpp
public:
    QMenuDataData();
    QGuardedPtr<QWidget> aWidget;
    int aInt;
};

#if defined(QT_ACCESSIBILITY_SUPPORT)
static bool inMenu = FALSE;
#endif

#if defined(Q_WS_X11)
extern int qt_xfocusout_grab_counter; // defined in qapplication_x11.cpp
#endif

/*!
    \class QMenuBar qmenubar.h
    \brief The QMenuBar class provides a horizontal menu bar.

    \ingroup application
    \mainclass

    A menu bar consists of a list of pull-down menu items. You add
    menu items with \link QMenuData::insertItem()
    insertItem()\endlink. For example, asuming that \c menubar is a
    pointer to a QMenuBar and \c filemenu is a pointer to a
    QPopupMenu, the following statement inserts the menu into the menu
    bar:
    \code
    menubar->insertItem( "&File", filemenu );
    \endcode
    The ampersand in the menu item's text sets Alt+F as a shortcut for
    this menu. (You can use "\&\&" to get a real ampersand in the menu
    bar.)

    Items are either enabled or disabled. You toggle their state with
    setItemEnabled().

    There is no need to lay out a menu bar. It automatically sets its
    own geometry to the top of the parent widget and changes it
    appropriately whenever the parent is resized.

    \important insertItem removeItem clear insertSeparator setItemEnabled isItemEnabled setItemVisible isItemVisible

    Example of creating a menu bar with menu items (from \l menu/menu.cpp):
    \quotefile menu/menu.cpp
    \skipto file = new QPopupMenu
    \printline
    \skipto Key_O
    \printline
    \printline
    \skipto new QMenuBar
    \printline
    \skipto insertItem
    \printline

    In most main window style applications you would use the menuBar()
    provided in QMainWindow, adding \l{QPopupMenu}s to the menu bar
    and adding \l{QAction}s to the popup menus.

    Example (from \l action/application.cpp):
    \quotefile action/application.cpp
    \skipto file = new QPopupMenu
    \printuntil fileNewAction

    Menu items can have text and pixmaps (or iconsets), see the
    various \link QMenuData::insertItem() insertItem()\endlink
    overloads, as well as separators, see \link
    QMenuData::insertSeparator() insertSeparator()\endlink. You can
    also add custom menu items that are derived from
    \l{QCustomMenuItem}.

    Menu items may be removed with removeItem() and enabled or
    disabled with \link QMenuData::setItemEnabled()
    setItemEnabled()\endlink.

    <img src=qmenubar-m.png> <img src=qmenubar-w.png>

    \section1 QMenuBar on Qt/Mac

    QMenuBar on Qt/Mac is a wrapper for using the system-wide menubar.
    If you have multiple menubars in one dialog the outermost menubar
    (normally inside a widget with widget flag \c WType_TopLevel) will
    be used for the system-wide menubar.

    Note that arbitrary Qt widgets \e cannot be inserted into a
    QMenuBar on the Mac because Qt uses Mac's native menus which don't
    support this functionality. This limitation does not apply to
    stand-alone QPopupMenus.

    Qt/Mac also provides a menubar merging feature to make QMenuBar
    conform more closely to accepted Mac OS X menubar layout. The
    merging functionality is based on string matching the title of a
    QPopupMenu entry. These strings are translated (using
    QObject::tr()) in the "QMenuBar" context. If an entry is moved its
    slots will still fire as if it was in the original place. The
    table below outlines the strings looked for and where the entry is
    placed if matched:

    \table
    \header \i String matches \i Placement \i Notes
    \row \i about.*
	 \i Application Menu | About <application name>
	 \i If this entry is not found no About item will appear in
	    the Application Menu
    \row \i config, options, setup, settings or preferences
	 \i Application Menu | Preferences
	 \i If this entry is not found the Settings item will be disabled
    \row \i quit or exit
	 \i Application Menu | Quit <application name>
	 \i If this entry is not found a default Quit item will be
	    created to call QApplication::quit()
    \endtable

    \link menu-example.html menu/menu.cpp\endlink is an example of
    QMenuBar and QPopupMenu use.

    \sa QPopupMenu QAccel QAction \link http://developer.apple.com/techpubs/macosx/Carbon/HumanInterfaceToolbox/Aqua/aqua.html Aqua Style Guidelines \endlink \link guibooks.html#fowler GUI Design Handbook: Menu Bar \endlink
*/


/*!
    \enum QMenuBar::Separator

    This enum type is used to decide whether QMenuBar should draw a
    separator line at its bottom.

    \value Never In many applications there is already a separator,
    and having two looks wrong.

    \value InWindowsStyle In some other applications a separator looks
    good in Windows style, but nowhere else.
*/

/*!
    \fn void QMenuBar::activated( int id )

    This signal is emitted when a menu item is selected; \a id is the
    id of the selected item.

    Normally you will connect each menu item to a single slot using
    QMenuData::insertItem(), but sometimes you will want to connect
    several items to a single slot (most often if the user selects
    from an array). This signal is useful in such cases.

    \sa highlighted(), QMenuData::insertItem()
*/

/*!
    \fn void QMenuBar::highlighted( int id )

    This signal is emitted when a menu item is highlighted; \a id is
    the id of the highlighted item.

    Normally, you will connect each menu item to a single slot using
    QMenuData::insertItem(), but sometimes you will want to connect
    several items to a single slot (most often if the user selects
    from an array). This signal is useful in such cases.

    \sa activated(), QMenuData::insertItem()
*/


// Motif style parameters

static const int motifBarHMargin	= 2;	// menu bar hor margin to item
static const int motifBarVMargin	= 1;	// menu bar ver margin to item
static const int motifItemFrame		= 2;	// menu item frame width
static const int motifItemHMargin	= 5;	// menu item hor text margin
static const int motifItemVMargin	= 4;	// menu item ver text margin

// The others are 0
static const int gtkItemHMargin = 8;
static const int gtkItemVMargin = 8;

/*

+-----------------------------
|      BarFrame
|   +-------------------------
|   |	   V  BarMargin
|   |	+---------------------
|   | H |      ItemFrame
|   |	|  +-----------------
|   |	|  |			   \
|   |	|  |  ^	 T E X T   ^	    | ItemVMargin
|   |	|  |  |		   |	   /
|   |	|      ItemHMargin
|   |
|

*/


/*****************************************************************************
  QMenuBar member functions
 *****************************************************************************/


/*!
    Constructs a menu bar called \a name with parent \a parent.
*/
QMenuBar::QMenuBar( QWidget *parent, const char *name )
    : QFrame( parent, name, WNoAutoErase )
{
#if defined( Q_WS_MAC ) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    mac_eaten_menubar = FALSE;
    mac_d = 0;
    macCreateNativeMenubar();
#endif
    isMenuBar = TRUE;
#ifndef QT_NO_ACCEL
    autoaccel = 0;
#endif
    irects    = 0;
    rightSide = 0; // Right of here is rigth-aligned content
    mseparator = 0;
    waitforalt = 0;
    popupvisible = 0;
    hasmouse = 0;
    defaultup = 0;
    toggleclose = 0;
    pendingDelayedContentsChanges = 0;
    pendingDelayedStateChanges = 0;
    if ( parent ) {
	// filter parent events for resizing
	parent->installEventFilter( this );

	// filter top-level-widget events for accelerators
	QWidget *tlw = topLevelWidget();
	if ( tlw != parent )
	    tlw->installEventFilter( this );
    }
    installEventFilter( this );

    setBackgroundMode( PaletteButton );
    setFrameStyle( QFrame::MenuBarPanel | QFrame::Raised );

    QFontMetrics fm = fontMetrics();

    int h;
    int gs = style().styleHint(QStyle::SH_GUIStyle);
    if (gs == GtkStyle) {
        h = fm.height() + gtkItemVMargin;
    } else {
        h = 2*motifBarVMargin + fm.height() + motifItemVMargin + 2*frameWidth() + 2*motifItemFrame;
    }

    setGeometry( 0, 0, width(), h );

    setMouseTracking( style().styleHint(QStyle::SH_MenuBar_MouseTracking) );
}



/*! \reimp */

void QMenuBar::styleChange( QStyle& old )
{
    setMouseTracking( style().styleHint(QStyle::SH_MenuBar_MouseTracking) );
    QFrame::styleChange( old );
}



/*!
    Destroys the menu bar.
*/

QMenuBar::~QMenuBar()
{
#ifndef QT_NO_ACCEL
    delete autoaccel;
#endif
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    macRemoveNativeMenubar();
#endif
    if ( irects )		// Avoid purify complaint.
	delete [] irects;
}

/*!
    \internal

    Repaints the menu item with id \a id; does nothing if there is no
    such menu item.
*/
void QMenuBar::updateItem( int id )
{
    int i = indexOf( id );
    if ( i >= 0 && irects )
	repaint( irects[i], FALSE );
}

#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
static bool fromFrameChange = FALSE;
#endif

/*!
    Recomputes the menu bar's display data according to the new
    contents.

    You should never need to call this; it is called automatically by
    QMenuData whenever it needs to be called.
*/

void QMenuBar::menuContentsChanged()
{
    // here the part that can't be delayed
    QMenuData::menuContentsChanged();
    badSize = TRUE;				// might change the size
    if( pendingDelayedContentsChanges )
        return;
    pendingDelayedContentsChanges = 1;
    if( !pendingDelayedStateChanges )// if the timer hasn't been started yet
        QTimer::singleShot( 0, this, SLOT(performDelayedChanges()));
}

void QMenuBar::performDelayedContentsChanged()
{
    pendingDelayedContentsChanges = 0;
    // here the part the can be delayed
#ifndef QT_NO_ACCEL
    // if performDelayedStateChanged() will be called too,
    // it will call setupAccelerators() too, no need to do it twice
    if( !pendingDelayedStateChanges )
        setupAccelerators();
#endif
    calculateRects();
    if ( isVisible() ) {
	update();
#ifndef QT_NO_MAINWINDOW
	QMainWindow *mw = ::qt_cast<QMainWindow*>(parent());
	if ( mw ) {
	    mw->triggerLayout();
	    mw->update();
	}
#endif
#ifndef QT_NO_LAYOUT
	if ( parentWidget() && parentWidget()->layout() )
	    parentWidget()->layout()->activate();
#endif
    }
}

/*!
    Recomputes the menu bar's display data according to the new state.

    You should never need to call this; it is called automatically by
    QMenuData whenever it needs to be called.
*/

void QMenuBar::menuStateChanged()
{
    if( pendingDelayedStateChanges )
        return;
    pendingDelayedStateChanges = 1;
    if( !pendingDelayedContentsChanges ) // if the timer hasn't been started yet
	QTimer::singleShot( 0, this, SLOT(performDelayedChanges()));
}

void QMenuBar::performDelayedStateChanged()
{
    pendingDelayedStateChanges = 0;
    // here the part that can be delayed
#ifndef QT_NO_ACCEL
    setupAccelerators(); // ### when we have a good solution for the accel vs. focus
			 // widget problem, remove that. That is only a workaround
                         // if you remove this, see performDelayedContentsChanged()
#endif
    update();
}


void QMenuBar::performDelayedChanges()
{
#if defined(Q_WS_MAC) && !defined(QMAC_MENUBAR_NO_NATIVE)
    // I must do this here as the values change in the function below.
    bool needMacUpdate = (pendingDelayedContentsChanges || pendingDelayedStateChanges);
#endif
    if( pendingDelayedContentsChanges )
        performDelayedContentsChanged();
    if( pendingDelayedStateChanges )
        performDelayedStateChanged();
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    if(mac_eaten_menubar && needMacUpdate) {
	macDirtyNativeMenubar();

	bool all_hidden = TRUE;
	if(irects) {
	    for(int i = 0; all_hidden && i < (int)mitems->count(); i++)
		all_hidden = irects[i].isEmpty();
	}
	if( all_hidden ) {
	    if( !isHidden())
		hide();
	} else {
	    if( !isShown() && !fromFrameChange )
		show();
	}
    }
#endif
}


void QMenuBar::menuInsPopup( QPopupMenu *popup )
{
    connect( popup, SIGNAL(activatedRedirect(int)),
	     SLOT(subActivated(int)) );
    connect( popup, SIGNAL(highlightedRedirect(int)),
	     SLOT(subHighlighted(int)) );
    connect( popup, SIGNAL(destroyed(QObject*)),
	     this, SLOT(popupDestroyed(QObject*)) );
}

void QMenuBar::menuDelPopup( QPopupMenu *popup )
{
    popup->disconnect( SIGNAL(activatedRedirect(int)) );
    popup->disconnect( SIGNAL(highlightedRedirect(int)) );
    disconnect( popup, SIGNAL(destroyed(QObject*)),
		this, SLOT(popupDestroyed(QObject*)) );
}

void QMenuBar::frameChanged()
{
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    fromFrameChange = TRUE;
#endif
    menuContentsChanged();
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    fromFrameChange = FALSE;
#endif
}

void QMenuBar::languageChange()
{
    menuContentsChanged();
}

/*!
    \internal

    This function is used to adjust the menu bar's geometry to the
    parent widget's geometry. Note that this is \e not part of the
    public interface - the function is \c public only because
    QObject::eventFilter() is.

    Resizes the menu bar to fit in the parent widget when the parent
    receives a resize event.
*/

bool QMenuBar::eventFilter( QObject *object, QEvent *event )
{
    if ( object == parent() && object
#ifndef QT_NO_TOOLBAR
	 && !::qt_cast<QToolBar*>(object)
#endif
	 && event->type() == QEvent::Resize ) {
	QResizeEvent *e = (QResizeEvent *)event;
	int w = e->size().width();
	setGeometry( 0, y(), w, heightForWidth(w) );
	return FALSE;
    }

    if ( !isVisible() || !object->isWidgetType() )
	return FALSE;

    if ( object == this && event->type() == QEvent::LanguageChange ) {
	badSize = TRUE;
	calculateRects();
	return FALSE;
    } else if ( event->type() == QEvent::MouseButtonPress ||
		event->type() == QEvent::MouseButtonRelease ) {
	waitforalt = 0;
	return FALSE;
    } else if ( waitforalt && event->type() == QEvent::FocusOut ) {
	// some window systems/managers use alt/meta as accelerator keys
	// for switching between windows/desktops/etc.  If the focus
	// widget gets unfocused, then we need to stop waiting for alt
	// NOTE: this event came from the real focus widget, so we don't
	// need to touch the event filters
	waitforalt = 0;
	// although the comment above said not to remove the event filter, it is
	// incorrect. We need to remove our self fom the focused widget as normally
	// this happens in the key release but it does not happen in this case
	QWidget * f = ((QWidget *)object)->focusWidget();
	if (f)
	    f->removeEventFilter( this );
	return FALSE;
    } else if ( !( event->type() == QEvent::Accel ||
		event->type() == QEvent::AccelOverride ||
		event->type() == QEvent::KeyPress ||
		event->type() == QEvent::KeyRelease ) ||
		!style().styleHint(QStyle::SH_MenuBar_AltKeyNavigation, this) ) {
	return FALSE;
    }

    QKeyEvent * ke = (QKeyEvent *) event;
#ifndef QT_NO_ACCEL
    // look for Alt press and Alt-anything press
    if ( event->type() == QEvent::Accel ) {
	QWidget * f = ((QWidget *)object)->focusWidget();
	// ### this thinks alt and meta are the same
	if ( ke->key() == Key_Alt || ke->key() == Key_Meta ) {
	    // A new Alt press and we wait for release, eat
	    // this key and don't wait for Alt on this widget
	    if ( waitforalt ) {
		waitforalt = 0;
		if ( object->parent() )
		    object->removeEventFilter( this );
		ke->accept();
		return TRUE;
	    // Menu has focus, send focus back
	    } else if ( hasFocus() ) {
		setAltMode( FALSE );
		ke->accept();
		return TRUE;
	    // Start waiting for Alt release on focus widget
	    } else if ( ke->stateAfter() == AltButton ) {
		waitforalt = 1;
#if defined(Q_WS_X11)
		QMenuData::d->aInt = qt_xfocusout_grab_counter;
#endif
		if ( f && f != object )
		    f->installEventFilter( this );
	    }
	// Other modifiers kills focus on menubar
	} else if ( ke->key() == Key_Control || ke->key() == Key_Shift) {
	    setAltMode( FALSE );
	// Got other key, no need to wait for Alt release
	} else {
	    waitforalt = 0;
	}
	// ### ! block all accelerator events when the menu bar is active
	if ( qApp && qApp->focusWidget() == this ) {
	    return TRUE;
	}

	return FALSE;
    }
#endif
    // look for Alt release
    if ( ((QWidget*)object)->focusWidget() == object ||
	 (object->parent() == 0 && ((QWidget*)object)->focusWidget() == 0) ) {
	if ( waitforalt && event->type() == QEvent::KeyRelease &&
	    ( ke->key() == Key_Alt || ke->key() == Key_Meta )
#if defined(Q_WS_X11)
		&& QMenuData::d->aInt == qt_xfocusout_grab_counter
#endif
	    ) {
	    setAltMode( TRUE );
	    if ( object->parent() )
		object->removeEventFilter( this );
	    QWidget * tlw = ((QWidget *)object)->topLevelWidget();
	    if ( tlw ) {
		// ### !
		// make sure to be the first event filter, so we can kill
		// accelerator events before the accelerators get to them.
		tlw->removeEventFilter( this );
		tlw->installEventFilter( this );
	    }
	    return TRUE;
	// Cancel if next keypress is NOT Alt/Meta,
	} else if ( !hasFocus() && (event->type() == QEvent::AccelOverride ) &&
		    !(((QKeyEvent *)event)->key() == Key_Alt ||
		      ((QKeyEvent *)event)->key() == Key_Meta) ) {
	    if ( object->parent() )
		object->removeEventFilter( this );
	    setAltMode( FALSE );
	}
    }

    return FALSE;				// don't stop event
}



/*!
  \internal
  Receives signals from menu items.
*/

void QMenuBar::subActivated( int id )
{
    emit activated( id );
}

/*!
  \internal
  Receives signals from menu items.
*/

void QMenuBar::subHighlighted( int id )
{
    emit highlighted( id );
}

/*!
  \internal
  Receives signals from menu accelerator.
*/
#ifndef QT_NO_ACCEL
void QMenuBar::accelActivated( int id )
{
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    if(mac_eaten_menubar)
	return;
#endif
    if ( !isEnabled() )				// the menu bar is disabled
	return;
    setAltMode( TRUE );
    setActiveItem( indexOf( id ) );
}
#endif

/*!
  \internal
  This slot receives signals from menu accelerator when it is about to be
  destroyed.
*/
#ifndef QT_NO_ACCEL
void QMenuBar::accelDestroyed()
{
    autoaccel = 0;				// don't delete it twice!
}
#endif

void QMenuBar::popupDestroyed( QObject *o )
{
    removePopup( (QPopupMenu*)o );
}

bool QMenuBar::tryMouseEvent( QPopupMenu *, QMouseEvent *e )
{
    QPoint pos = mapFromGlobal( e->globalPos() );
    if ( !rect().contains( pos ) )		// outside
	return FALSE;
    int item = itemAtPos( pos );
    if ( item == -1 && (e->type() == QEvent::MouseButtonPress ||
			e->type() == QEvent::MouseButtonRelease) ) {
	hidePopups();
	goodbye();
	return FALSE;
    }
    QMouseEvent ee( e->type(), pos, e->globalPos(), e->button(), e->state() );
    event( &ee );
    return TRUE;
}


void QMenuBar::tryKeyEvent( QPopupMenu *, QKeyEvent *e )
{
    event( e );
}


void QMenuBar::goodbye( bool cancelled )
{
    mouseBtDn = FALSE;
    popupvisible = 0;
    setAltMode( cancelled && style().styleHint(QStyle::SH_MenuBar_AltKeyNavigation, this) );
}


void QMenuBar::openActPopup()
{
#if defined(QT_ACCESSIBILITY_SUPPORT)
    if ( !inMenu ) {
	QAccessible::updateAccessibility( this, 0, QAccessible::MenuStart );
	inMenu = TRUE;
    }
#endif

    if ( actItem < 0 )
	return;
    QPopupMenu *popup = mitems->at(actItem)->popup();
    if ( !popup || !popup->isEnabled() )
	return;

    QRect  r = itemRect( actItem );
    bool reverse = QApplication::reverseLayout();
    const int yoffset = 1; //(style().styleHint( QStyle::SH_GUIStyle ) == QStyle::WindowsStyle) ? 4 : 1; ### this breaks designer mainwindow editing
    QPoint pos = r.bottomLeft() + QPoint(0,yoffset);
    if( reverse ) {
	pos = r.bottomRight() + QPoint(0,yoffset);
	pos.rx() -= popup->sizeHint().width();
    }

    int ph = popup->sizeHint().height();
    pos = mapToGlobal(pos);
    int sh = QApplication::desktop()->height();
    if ( defaultup || (pos.y() + ph > sh) ) {
	QPoint t = mapToGlobal( r.topLeft() );
	if( reverse ) {
	    t = mapToGlobal( r.topRight() );
	    t.rx() -= popup->sizeHint().width();
	}
	t.ry() -= (QCOORD)ph;
	if ( !defaultup || t.y() >= 0 )
	    pos = t;
    }

    //avoid circularity
    if ( popup->isVisible() )
	return;

    Q_ASSERT( popup->parentMenu == 0 );
    popup->parentMenu = this;			// set parent menu

    popup->snapToMouse = FALSE;
    popup->popup( pos );
    popup->snapToMouse = TRUE;
}

/*!
  \internal
  Hides all popup menu items.
*/

void QMenuBar::hidePopups()
{
#if defined(QT_ACCESSIBILITY_SUPPORT)
    bool anyVisible = FALSE;
#endif
    QMenuItemListIt it(*mitems);
    QMenuItem *mi;
    while ( (mi=it.current()) ) {
	++it;
	if ( mi->popup() && mi->popup()->isVisible() ) {
#if defined(QT_ACCESSIBILITY_SUPPORT)
	    anyVisible = TRUE;
#endif
	    mi->popup()->hide();
	}
    }
#if defined(QT_ACCESSIBILITY_SUPPORT)
    if ( !popupvisible && anyVisible && inMenu ) {
	QAccessible::updateAccessibility( this, 0, QAccessible::MenuEnd );
	inMenu = FALSE;
    }
#endif
}


/*!
    Reimplements QWidget::show() in order to set up the correct
    keyboard accelerators and to raise itself to the top of the widget
    stack.
*/

void QMenuBar::show()
{
#ifndef QT_NO_ACCEL
    setupAccelerators();
#endif

    if ( parentWidget() )
	resize( parentWidget()->width(), height() );

    QApplication::sendPostedEvents( this, QEvent::Resize );
    performDelayedChanges();
    calculateRects();

#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    if(mac_eaten_menubar) {
	//If all elements are invisible no reason for me to be visible either
	bool all_hidden = TRUE;
	if(irects) {
	    for(int i = 0; all_hidden && i < (int)mitems->count(); i++)
		all_hidden = irects[i].isEmpty();
	}
	if(all_hidden)
	    QWidget::hide();
	else
	    QWidget::show();
    } else {
	QWidget::show();
    }
#else
    QWidget::show();
#endif

#ifndef QT_NO_MAINWINDOW
    QMainWindow *mw = ::qt_cast<QMainWindow*>(parent());
    if ( mw ) //### ugly workaround
	mw->triggerLayout();
#endif
    raise();
}

/*!
    Reimplements QWidget::hide() in order to deselect any selected
    item, and calls setUpLayout() for the main window.
*/

void QMenuBar::hide()
{
    QWidget::hide();
    setAltMode( FALSE );
    hidePopups();
#ifndef QT_NO_MAINWINDOW
    QMainWindow *mw = ::qt_cast<QMainWindow*>(parent());
    if ( mw ) //### ugly workaround
	mw->triggerLayout();
#endif
}

/*!
  \internal
  Needs to change the size of the menu bar when a new font is set.
*/

void QMenuBar::fontChange( const QFont & f )
{
    badSize = TRUE;
    updateGeometry();
    if ( isVisible() )
	calculateRects();
    QWidget::fontChange( f );
}


/*****************************************************************************
  Item geometry functions
 *****************************************************************************/

/*
    This function serves two different purposes. If the parameter is
    negative, it updates the irects member for the current width and
    resizes. Otherwise, it does the same calculations for the GIVEN
    width and returns the height to which it WOULD have resized. A bit
    tricky, but both operations require almost identical steps.
*/
int QMenuBar::calculateRects( int max_width )
{
    polish();
    bool update = ( max_width < 0 );

    if ( update ) {
	rightSide = 0;
	if ( !badSize )				// size was not changed
	    return 0;
	delete [] irects;
	int i = mitems->count();
	if ( i == 0 ) {
	    irects = 0;
	} else {
	    irects = new QRect[ i ];
	    Q_CHECK_PTR( irects );
	}
	max_width = width();
    }
    QFontMetrics fm = fontMetrics();
    int max_height = 0;
    int max_item_height = 0;
    int nlitems = 0;				// number on items on cur line
    int gs = style().styleHint(QStyle::SH_GUIStyle);
    bool reverse = QApplication::reverseLayout();
    int x = frameWidth();
    int y = frameWidth();
    if ( gs == MotifStyle ) {
	x += motifBarHMargin;
	y += motifBarVMargin;
    } else if ( style().inherits("QWindowsXPStyle") && style().styleHint(QStyle::SH_TitleBar_NoBorder) ) {
        ;
    } else if ( gs == WindowsStyle ) {
	x += 2;
	y += 2;
    }
    if ( reverse )
	x = max_width - x;

    int i = 0;
    int separator = -1;
    const int itemSpacing = style().pixelMetric(QStyle::PM_MenuBarItemSpacing);
    const int lastItem = reverse ? 0 : mitems->count() - 1;

    while ( i < (int)mitems->count() ) {	// for each menu item...
	QMenuItem *mi = mitems->at(i);

	int w=0, h=0;
	if ( !mi->isVisible()
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
				  ||  (mac_eaten_menubar && !mi->custom() && !mi->widget() )
#endif
	     ) {
	    ; // empty rectangle
	} else if ( mi->widget() ) {
	    if ( mi->widget()->parentWidget() != this ) {
		mi->widget()->reparent( this, QPoint(0,0) );
	    }
	    w = mi->widget()->sizeHint().expandedTo( QApplication::globalStrut() ).width()+2;
	    h = mi->widget()->sizeHint().expandedTo( QApplication::globalStrut() ).height()+2;
	    if ( i && separator < 0 )
		separator = i;
	} else if ( mi->pixmap() ) {			// pixmap item
	    w = QMAX( mi->pixmap()->width() + 4, QApplication::globalStrut().width() );
	    h = QMAX( mi->pixmap()->height() + 4, QApplication::globalStrut().height() );
	} else if ( !mi->text().isNull() ) {	// text item
	    QString s = mi->text();
        if ( gs == GtkStyle ) {
            w = fm.boundingRect( s ).width() + 2*gtkItemHMargin;
        } else {
	        w = fm.boundingRect( s ).width() + 2*motifItemHMargin;
        }
	    w -= s.contains('&')*fm.width('&');
	    w += s.contains("&&")*fm.width('&');
	    w = QMAX( w, QApplication::globalStrut().width() );
        if (gs == GtkStyle ) {
            h = QMAX( fm.height() + gtkItemVMargin, QApplication::globalStrut().height() );
        } else {
	        h = QMAX( fm.height() + motifItemVMargin, QApplication::globalStrut().height() );
        }
	} else if ( mi->isSeparator() ) {	// separator item
	    if ( style().styleHint(QStyle::SH_GUIStyle) == MotifStyle )
		separator = i; //### only motif?
	}
	if ( !mi->isSeparator() || mi->widget() ) {
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
	    if ( !mac_eaten_menubar ) {
#endif
		if ( gs == MotifStyle && mi->isVisible() ) {
		    w += 2*motifItemFrame;
		    h += 2*motifItemFrame;
		}
#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
	    }
#endif

	    if ( ( ( !reverse && x + w + frameWidth() - max_width > 0 ) ||
		 ( reverse && x - w - itemSpacing - frameWidth() < 0 ) )
		 && nlitems > 0 ) {
		nlitems = 0;
		x = frameWidth();
		y += h;
		if ( gs == MotifStyle ) {
		    x += motifBarHMargin;
		    y += motifBarVMargin;
		}
		if ( reverse )
		    x = max_width - x + itemSpacing;
		if ( style().styleHint(QStyle::SH_GUIStyle) == MotifStyle )
		    separator = -1;
	    }
	    if ( y + h + 2*frameWidth() > max_height )
		max_height = y + h + 2*frameWidth();
	    if ( h > max_item_height )
		max_item_height = h;
	}

	const bool isLast = (i == lastItem);

	if( reverse ) {
	    x -= w;
	    if (!isLast && !mi->isSeparator())
		x -= itemSpacing;
	}
	if ( update ) {
	    irects[i].setRect( x, y, w, h );
	}
	if ( !reverse ) {
	    x += w;
	    if (!isLast && !mi->isSeparator())
		x += itemSpacing;
	}
	nlitems++;
	i++;
    }
    if ( gs == WindowsStyle ) {
	max_height += 2;
	max_width += 2;
    }

    if ( update ) {
	if ( separator >= 0 ) {
	    int moveBy = reverse ? - x - frameWidth() : max_width - x - frameWidth();
	    rightSide = x;
	    while( --i >= separator ) {
		irects[i].moveBy( moveBy, 0 );
	    }
	} else {
	    rightSide = width()-frameWidth();
	}
	if ( max_height != height() )
	    resize( width(), max_height );
	for ( i = 0; i < (int)mitems->count(); i++ ) {
	    irects[i].setHeight( max_item_height  );
	    QMenuItem *mi = mitems->at(i);
	    if ( mi->widget() ) {
		QRect r ( QPoint(0,0), mi->widget()->sizeHint() );
		r.moveCenter( irects[i].center() );
		mi->widget()->setGeometry( r );
		if( mi->widget()->isHidden() )
		    mi->widget()->show();
	    }
	}
	badSize = FALSE;
    }

    return max_height;
}

/*!
    Returns the height that the menu would resize itself to if its
    parent (and hence itself) resized to the given \a max_width. This
    can be useful for simple layout tasks in which the height of the
    menu bar is needed after items have been inserted. See \l
    showimg/showimg.cpp for an example of the usage.
*/
int QMenuBar::heightForWidth(int max_width) const
{
    // Okay to cast away const, as we are not updating.
    if ( max_width < 0 ) max_width = 0;
    return ((QMenuBar*)this)->calculateRects( max_width );
}

/*!
  \internal
  Return the bounding rectangle for the menu item at position \a index.
*/

QRect QMenuBar::itemRect( int index )
{
    calculateRects();
    return irects ? irects[index] : QRect(0,0,0,0);
}

/*!
  \internal
  Return the item at \a pos, or -1 if there is no item there or if
  it is a separator item.
*/

int QMenuBar::itemAtPos( const QPoint &pos_ )
{
    calculateRects();
    if ( !irects )
	return -1;
    int i = 0;
    QPoint pos = pos_;
    // Fitts' Law for edges - compensate for the extra margin
    // added in calculateRects()
    const int margin = 2;
    pos.setX( QMAX( margin, QMIN( width() - margin, pos.x())));
    pos.setY( QMAX( margin, QMIN( height() - margin, pos.y())));
    while ( i < (int)mitems->count() ) {
	if ( !irects[i].isEmpty() && irects[i].contains( pos ) ) {
	    QMenuItem *mi = mitems->at(i);
	    return mi->isSeparator() ? -1 : i;
	}
	++i;
    }
    return -1;					// no match
}


/*!
  \property QMenuBar::separator
  \brief in which cases a menubar sparator is drawn

  \obsolete
*/
void QMenuBar::setSeparator( Separator when )
{
    mseparator = when;
}

QMenuBar::Separator QMenuBar::separator() const
{
    return mseparator ? InWindowsStyle : Never;
}

/*****************************************************************************
  Event handlers
 *****************************************************************************/

/*!
    Called from QFrame::paintEvent(). Draws the menu bar contents
    using painter \a p.
*/

void QMenuBar::drawContents( QPainter *p )
{
    performDelayedChanges();
    QRegion reg( contentsRect() );
    QColorGroup g = colorGroup();
    bool e;

    // this shouldn't happen
    if ( !irects )
	return;

    for ( int i=0; i<(int)mitems->count(); i++ ) {
	QMenuItem *mi = mitems->at( i );
	if ( !mi->text().isNull() || mi->pixmap() ) {
	    QRect r = irects[i];
	    if(r.isEmpty() || !mi->isVisible())
		continue;
	    e = mi->isEnabledAndVisible();
	    if ( e )
		g = isEnabled() ? ( isActiveWindow() ? palette().active() :
				    palette().inactive() ) : palette().disabled();
	    else
		g = palette().disabled();
	    reg = reg.subtract( r );
	    QSharedDoubleBuffer buffer( p, r );
	    buffer.painter()->setFont( p->font() );
	    buffer.painter()->setPen( p->pen() );
	    buffer.painter()->setBrush( p->brush() );

	    QStyle::SFlags flags = QStyle::Style_Default;
	    if (isEnabled() && e)
		flags |= QStyle::Style_Enabled;
	    if ( i == actItem )
		flags |= QStyle::Style_Active;
	    if ( actItemDown )
		flags |= QStyle::Style_Down;
	    if (hasFocus() || hasmouse || popupvisible)
		flags |= QStyle::Style_HasFocus;
	    style().drawControl(QStyle::CE_MenuBarItem, buffer.painter(), this,
				r, g, flags, QStyleOption(mi));
	}
    }

    p->save();
    p->setClipRegion(reg);
    style().drawControl(QStyle::CE_MenuBarEmptyArea, p, this, contentsRect(), g);
    p->restore();

#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
    if ( !mac_eaten_menubar )
#endif
    {
	Qt::GUIStyle gs = (Qt::GUIStyle) style().styleHint(QStyle::SH_GUIStyle);
	if ( mseparator == InWindowsStyle && gs == WindowsStyle ) {
	    p->setPen( g.light() );
	    p->drawLine( 0, height()-1, width()-1, height()-1 );
	    p->setPen( g.dark() );
	    p->drawLine( 0, height()-2, width()-1, height()-2 );
	}
    }
}


/*!
    \reimp
*/
void QMenuBar::mousePressEvent( QMouseEvent *e )
{
    if ( e->button() != LeftButton )
	return;
    mouseBtDn = TRUE;				// mouse button down
    int item = itemAtPos( e->pos() );
    if ( item == actItem && popupvisible )
	toggleclose = 1;
    if ( item >= 0 ) {
	QFocusEvent::Reason oldReason = QFocusEvent::reason();
	QMenuItem *mi = findItem( idAt( item ) );
	// we know that a popup will open, so set the reason to avoid
	// itemviews to redraw their selections
	if ( mi && mi->popup() )
	    QFocusEvent::setReason( QFocusEvent::Popup );
	setAltMode( TRUE );
	QFocusEvent::setReason( oldReason );
    }
    setActiveItem( item, TRUE, FALSE );
}


/*!
    \reimp
*/
void QMenuBar::mouseReleaseEvent( QMouseEvent *e )
{
    if ( e->button() != LeftButton )
	return;
    if ( !mouseBtDn )
	return;
    mouseBtDn = FALSE;				// mouse button up
    int item = itemAtPos( e->pos() );
    if ( ( item >= 0 && !mitems->at(item)->isEnabledAndVisible() ) ||
	 ( actItem >= 0 && !mitems->at(actItem)->isEnabledAndVisible() ) ) {
	hidePopups();
	setActiveItem( -1 );
	return;
    }
    bool showMenu = TRUE;
    if ( toggleclose &&
	 // pressing an item twice closes in windows, but not in motif :/
	 style().styleHint(QStyle::SH_GUIStyle) == WindowsStyle &&
	 actItem == item ) {
	showMenu = FALSE;
	setAltMode( FALSE );
    }
    setActiveItem( item, showMenu, !hasMouseTracking() );
    toggleclose = 0;
}


/*!
    \reimp
*/
void QMenuBar::mouseMoveEvent( QMouseEvent *e )
{
    int item = itemAtPos( e->pos() );
    if ( !mouseBtDn && !popupvisible) {
	if ( item >= 0 ) {
	    if ( !hasmouse ) {
		hasmouse = 1;
		if ( actItem == item )
		    actItem = -1; // trigger update
	    }
	}
	setActiveItem( item, FALSE, FALSE );
	return;
    }
    if ( item != actItem && item >= 0  && ( popupvisible || mouseBtDn ) )
	setActiveItem( item, TRUE, FALSE );
}


/*!
    \reimp
*/
void QMenuBar::leaveEvent( QEvent * e )
{
    hasmouse = 0;
    int actId = idAt( actItem );
    if ( !hasFocus() && !popupvisible )
	actItem = -1;
    updateItem( actId );
    QFrame::leaveEvent( e );
}


/*!
    \reimp
*/
void QMenuBar::keyPressEvent( QKeyEvent *e )
{
    if ( actItem < 0 )
	return;

    QMenuItem  *mi = 0;
    int dx = 0;

    if ( e->state() & Qt::ControlButton &&
	 ( e->key() == Qt::Key_Tab || e->key() == Qt::Key_Backtab ) )
    {
	e->ignore();
	return;
    }

    switch ( e->key() ) {
     case Key_Left:
	dx = QApplication::reverseLayout() ? 1 : -1;
	break;

    case Key_Right:
    case Key_Tab:
	dx = QApplication::reverseLayout() ? -1 : 1;
	break;

    case Key_Up:
    case Key_Down:
    case Key_Enter:
    case Key_Return:
	if ( style().styleHint(QStyle::SH_MenuBar_AltKeyNavigation) )
	    setActiveItem( actItem );
	break;

    case Key_Escape:
	setAltMode( FALSE );
	break;
    }

    if ( dx ) {					// highlight next/prev
	int i = actItem;
	int c = mitems->count();
	int n = c;
	while ( n-- ) {
	    i = i + dx;
	    if ( i == c )
		i = 0;
	    else if ( i < 0 )
		i = c - 1;
	    mi = mitems->at( i );
	    // ### fix windows-style traversal - currently broken due to
	    // QMenuBar's reliance on QPopupMenu
	    if ( /* (style() == WindowsStyle || */ mi->isEnabledAndVisible() /* ) */
		 && !mi->isSeparator() )
		break;
	}
	setActiveItem( i, popupvisible	 );
    } else if ( ( !e->state() || (e->state()&(MetaButton|AltButton)) ) && e->text().length()==1 && !popupvisible ) {
	QChar c = e->text()[0].upper();

	QMenuItemListIt it(*mitems);
	QMenuItem* first = 0;
	QMenuItem* currentSelected = 0;
	QMenuItem* firstAfterCurrent = 0;

	QMenuItem *m;
	int indx = 0;
	int clashCount = 0;
	while ( (m=it.current()) ) {
	    ++it;
	    QString s = m->text();
	    if ( !s.isEmpty() ) {
		int i = s.find( '&' );
		if ( i >= 0 )
		{
		    if ( s[i+1].upper() == c ) {
			clashCount++;
			if ( !first )
			    first = m;
			if ( indx == actItem )
			    currentSelected = m;
			else if ( !firstAfterCurrent && currentSelected )
			    firstAfterCurrent = m;
		    }
		}
	    }
	    indx++;
	}
	if ( 0 == clashCount ) {
	    return;
	} else if ( 1 == clashCount ) {
 	    indx = indexOf( first->id() );
	} else {
	    // If there's clashes and no one is selected, use first one
	    // or if there is no clashes _after_ current, use first one
	    if ( !currentSelected || (currentSelected && !firstAfterCurrent))
		indx = indexOf( first->id() );
	    else
		indx = indexOf( firstAfterCurrent->id() );
	}

	setActiveItem( indx );
    }
}


/*!
    \reimp
*/
void QMenuBar::resizeEvent( QResizeEvent *e )
{
    QFrame::resizeEvent( e );
    if ( badSize )
	return;
    badSize = TRUE;
    calculateRects();
}

/*
    Sets actItem to \a i and calls repaint for the changed things.

    Takes care to optimize the repainting. Assumes that
    calculateRects() has been called as appropriate.
*/

void QMenuBar::setActiveItem( int i, bool show, bool activate_first_item )
{
    if ( i == actItem && (uint)show == popupvisible )
	return;

    QMenuItem* mi = 0;
    if ( i >= 0 )
	mi = mitems->at( i );
    if ( mi && !mi->isEnabledAndVisible() )
	return;

    popupvisible = i >= 0 ? (show) : 0;
    actItemDown = popupvisible;

    if ( i < 0 || actItem < 0 ) {
	// just one item needs repainting
	int n = QMAX( actItem, i );
	actItem = i;
	if ( irects && n >= 0 )
	    repaint( irects[n], FALSE );
    } else if ( QABS(i-actItem) == 1 ) {
	// two neighbouring items need repainting
	int o = actItem;
	actItem = i;
	if ( irects )
	    repaint( irects[i].unite( irects[o] ), FALSE );
    } else {
	// two non-neighbouring items need repainting
	int o = actItem;
	actItem = i;
	if ( irects ) {
	    repaint( irects[o], FALSE );
	    repaint( irects[i], FALSE );
	}
    }

    hidePopups();

    if ( !popupvisible && actItem >= 0 && irects ) {
	QRect mfrect = irects[actItem];
	setMicroFocusHint( mfrect.x(), mfrect.y(), mfrect.width(), mfrect.height(), FALSE );
    }

#if defined(QT_ACCESSIBILITY_SUPPORT)
    if ( mi )
	QAccessible::updateAccessibility( this, indexOf( mi->id() )+1, QAccessible::Focus );
#endif

    if ( actItem < 0 || !popupvisible || !mi  )
	return;

    QPopupMenu *popup = mi->popup();
    if ( popup ) {
	emit highlighted( mi->id() );
	openActPopup();
	if ( activate_first_item )
	    popup->setFirstItemActive();
    } else {				// not a popup
	goodbye( FALSE );
	if ( mi->signal() )			// activate signal
	    mi->signal()->activate();
	emit activated( mi->id() );
    }
}


void QMenuBar::setAltMode( bool enable )
{
#if defined(QT_ACCESSIBILITY_SUPPORT)
    if ( inMenu && !enable ) {
	QAccessible::updateAccessibility( this, 0, QAccessible::MenuEnd );
	inMenu = FALSE;
    } else if ( !inMenu && enable ) {
	QAccessible::updateAccessibility( this, 0, QAccessible::MenuStart );
	inMenu = TRUE;
    }
#endif

    waitforalt = 0;
    actItemDown = FALSE;
    if ( enable ) {
	if ( !QMenuData::d->aWidget )
	    QMenuData::d->aWidget = qApp->focusWidget();
	setFocus();
	updateItem( idAt( actItem ) );
    } else {
	// set the focus back to the previous widget if
	// we still have the focus.
	if ( qApp->focusWidget() == this ) {
	    if ( QMenuData::d->aWidget )
		QMenuData::d->aWidget->setFocus();
	    else
		clearFocus();
	}
	int actId = idAt( actItem );
	actItem = -1;
	updateItem( actId );
	QMenuData::d->aWidget = 0;
    }
}

/*!
    Sets up keyboard accelerators for the menu bar.
*/
#ifndef QT_NO_ACCEL

void QMenuBar::setupAccelerators()
{
    delete autoaccel;
    autoaccel = 0;

    QMenuItemListIt it(*mitems);
    QMenuItem *mi;
    while ( (mi=it.current()) ) {
	++it;
	if ( !mi->isEnabledAndVisible() ) // ### when we have a good solution for the accel vs. focus widget problem, remove that. That is only a workaround
	    continue;
	QString s = mi->text();
	if ( !s.isEmpty() ) {
	    int i = QAccel::shortcutKey( s );
	    if ( i ) {
		if ( !autoaccel ) {
		    autoaccel = new QAccel( this );
		    Q_CHECK_PTR( autoaccel );
		    autoaccel->setIgnoreWhatsThis( TRUE );
		    connect( autoaccel, SIGNAL(activated(int)),
			     SLOT(accelActivated(int)) );
		    connect( autoaccel, SIGNAL(activatedAmbiguously(int)),
			     SLOT(accelActivated(int)) );
		    connect( autoaccel, SIGNAL(destroyed()),
			     SLOT(accelDestroyed()) );
		}
		autoaccel->insertItem( i, mi->id() );
	    }
	}
	if ( mi->popup() ) {
	    QPopupMenu* popup = mi->popup();
	    popup->updateAccel( this );
	    if ( !popup->isEnabled() )
		popup->enableAccel( FALSE );
	}
    }
}
#endif

/*!
    \reimp
 */
bool QMenuBar::customWhatsThis() const
{
    return TRUE;
}



/*!
    \reimp
 */
void QMenuBar::focusInEvent( QFocusEvent * )
{
    if ( actItem < 0 ) {
	int i = -1;
	while ( actItem < 0 && ++i < (int) mitems->count() ) {
	    QMenuItem* mi = mitems->at( i );
	    if ( mi && mi->isEnabledAndVisible() && !mi->isSeparator() )
		setActiveItem( i, FALSE );
	}
    } else if ( !popupvisible ) {
	updateItem( idAt( actItem ) );
    }
}

/*!
    \reimp
 */
void QMenuBar::focusOutEvent( QFocusEvent * )
{
    updateItem( idAt( actItem ) );
    if ( !popupvisible )
	setAltMode( FALSE );
}

/*!
    \reimp
*/

QSize QMenuBar::sizeHint() const
{
    int h = height();
    if ( badSize )
	h = ( (QMenuBar*)this )->calculateRects();
    QSize s( 2*frameWidth(),0);
    if ( irects ) {
	for ( int i = 0; i < (int)mitems->count(); ++i )
	    s.setWidth( s.width() + irects[ i ].width() + 2 );
    }
    s.setHeight( h );
    return (style().sizeFromContents(QStyle::CT_MenuBar, this, s.
				     expandedTo(QApplication::globalStrut())));
}

/*!
    \reimp
*/

QSize QMenuBar::minimumSize() const
{
#ifndef QT_NO_TOOLBAR
    QToolBar *tb = ::qt_cast<QToolBar*>(parent());
    if ( tb )
	return sizeHint();
#endif
    return QFrame::minimumSize();
}

/*!
    \reimp
*/

QSize QMenuBar::minimumSizeHint() const
{
    return minimumSize();
}

/*!
    \property QMenuBar::defaultUp
    \brief the popup orientation

    The default popup orientation. By default, menus pop "down" the
    screen. By setting the property to TRUE, the menu will pop "up".
    You might call this for menus that are \e below the document to
    which they refer.

    If the menu would not fit on the screen, the other direction is
    used automatically.
*/
void QMenuBar::setDefaultUp( bool on )
{
    defaultup = on;
}

bool QMenuBar::isDefaultUp() const
{
    return defaultup;
}


/*!
    \reimp
 */
void QMenuBar::activateItemAt( int index )
{
    if ( index >= 0 && index < (int) mitems->count() )
	setActiveItem( index );
    else
	goodbye( FALSE );
}

#endif // QT_NO_MENUBAR