source: trunk/src/kernel/qapplication_pm.cpp@ 153

Last change on this file since 153 was 153, checked in by dmik, 19 years ago

kernel: Attempted to fix some spontaneous Qt application traps during window management (seen in Psi a couple of times after showing big tool tips, see ticket:34 for more info):

  • Deleted modal widgets could be left referenced by widgets they were blocking (through the QWL_QTMODAL window word).
  • Custom window data was not initialized to zero after window creation.
  • Property svn:keywords set to Id
File size: 127.3 KB
Line 
1/****************************************************************************
2** $Id: qapplication_pm.cpp 153 2006-11-12 23:05:13Z dmik $
3**
4** Implementation of OS/2 startup routines and event handling
5**
6** Copyright (C) 1992-2003 Trolltech AS. All rights reserved.
7** Copyright (C) 2004 Norman ASA. Initial OS/2 Port.
8** Copyright (C) 2005-2006 netlabs.org. Further OS/2 Development.
9**
10** This file is part of the kernel module of the Qt GUI Toolkit.
11**
12** This file may be distributed under the terms of the Q Public License
13** as defined by Trolltech AS of Norway and appearing in the file
14** LICENSE.QPL included in the packaging of this file.
15**
16** This file may be distributed and/or modified under the terms of the
17** GNU General Public License version 2 as published by the Free Software
18** Foundation and appearing in the file LICENSE.GPL included in the
19** packaging of this file.
20**
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
22** licenses may use this file in accordance with the Qt Commercial License
23** Agreement provided with the Software.
24**
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
27**
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
29** information about Qt Commercial License Agreements.
30** See http://www.trolltech.com/qpl/ for QPL licensing information.
31** See http://www.trolltech.com/gpl/ for GPL licensing information.
32**
33** Contact info@trolltech.com if any conditions of this licensing are
34** not clear to you.
35**
36**********************************************************************/
37
38// GCC headers do not define this when INCL_BASE is defined,
39// but we need it for IOCTL_KEYBOARD etc. constants
40#ifndef INCL_DOSDEVIOCTL
41#define INCL_DOSDEVIOCTL
42#endif
43
44#include "qapplication.h"
45#include "private/qapplication_p.h"
46#include "qwidget.h"
47#include "qwidgetlist.h"
48#include "qwidgetintdict.h"
49#include "qobjectlist.h"
50#include "qpainter.h"
51#include "qpixmapcache.h"
52#include "qdatetime.h"
53#include "qsessionmanager.h"
54#include "qmime.h"
55#include "qguardedptr.h"
56#include "qclipboard.h"
57#include "qthread.h"
58#include "qwhatsthis.h" // ######## dependency
59#include "qthread.h"
60#include "qlibrary.h"
61#include "qt_os2.h"
62#include "qcursor.h"
63#include "private/qinternal_p.h"
64#include "private/qcriticalsection_p.h"
65/// @todo (dmik) remove?
66//#include "private/qinputcontext_p.h"
67#include "qstyle.h"
68#include "qmetaobject.h"
69
70#include <limits.h>
71#include <string.h>
72#include <ctype.h>
73#include <stdlib.h>
74
75extern void qt_ensure_pm();
76
77/// @todo (dmik) hmm, extended keys under OS/2?
78//// support for multi-media-keys on ME/2000/XP
79//#ifndef WM_APPCOMMAND
80//#define WM_APPCOMMAND 0x0319
81//
82//#define FAPPCOMMAND_MOUSE 0x8000
83//#define FAPPCOMMAND_KEY 0
84//#define FAPPCOMMAND_OEM 0x1000
85//#define FAPPCOMMAND_MASK 0xF000
86//#define GET_APPCOMMAND_LPARAM(lParam) ((short)(HIWORD(lParam) & ~FAPPCOMMAND_MASK))
87//#define GET_DEVICE_LPARAM(lParam) ((WORD)(HIWORD(lParam) & FAPPCOMMAND_MASK))
88//#define GET_MOUSEORKEY_LPARAM GET_DEVICE_LPARAM
89//#define GET_FLAGS_LPARAM(lParam) (LOWORD(lParam))
90//#define GET_KEYSTATE_LPARAM(lParam) GET_FLAGS_LPARAM(lParam)
91//
92//#define APPCOMMAND_BROWSER_BACKWARD 1
93//#define APPCOMMAND_BROWSER_FORWARD 2
94//#define APPCOMMAND_BROWSER_REFRESH 3
95//#define APPCOMMAND_BROWSER_STOP 4
96//#define APPCOMMAND_BROWSER_SEARCH 5
97//#define APPCOMMAND_BROWSER_FAVORITES 6
98//#define APPCOMMAND_BROWSER_HOME 7
99//#define APPCOMMAND_VOLUME_MUTE 8
100//#define APPCOMMAND_VOLUME_DOWN 9
101//#define APPCOMMAND_VOLUME_UP 10
102//#define APPCOMMAND_MEDIA_NEXTTRACK 11
103//#define APPCOMMAND_MEDIA_PREVIOUSTRACK 12
104//#define APPCOMMAND_MEDIA_STOP 13
105//#define APPCOMMAND_MEDIA_PLAY_PAUSE 14
106//#define APPCOMMAND_LAUNCH_MAIL 15
107//#define APPCOMMAND_LAUNCH_MEDIA_SELECT 16
108//#define APPCOMMAND_LAUNCH_APP1 17
109//#define APPCOMMAND_LAUNCH_APP2 18
110//#define APPCOMMAND_BASS_DOWN 19
111//#define APPCOMMAND_BASS_BOOST 20
112//#define APPCOMMAND_BASS_UP 21
113//#define APPCOMMAND_TREBLE_DOWN 22
114//#define APPCOMMAND_TREBLE_UP 23
115//#endif
116
117extern void qt_dispatchEnterLeave( QWidget*, QWidget* ); // qapplication.cpp
118
119extern void qt_erase_background(
120 HPS hps, int x, int y, int w, int h,
121 const QColor &bg_color,
122 const QPixmap *bg_pixmap, int off_x, int off_y, int devh
123);
124
125/*
126 Internal functions.
127*/
128
129Q_EXPORT
130void qt_draw_tiled_pixmap( HPS, int, int, int, int,
131 const QPixmap *, int, int, int );
132
133QRgb qt_sysclr2qrgb( LONG sysClr )
134{
135 // QRgb has the same RGB format (0xaarrggbb) as OS/2 uses (ignoring the
136 // highest alpha byte) so we just cast OS/2 LONG RGB value to qRgb
137 // which is an unsigned int actually.
138 return ((QRgb) WinQuerySysColor( HWND_DESKTOP, sysClr, 0 )) & RGB_MASK;
139}
140
141QFont qt_sysfont2qfont( const PSZ scope ) {
142 static const PSZ app = "PM_SystemFonts";
143 static const PSZ def = "8.Helv";
144 ULONG keyLen = 0;
145 QFont f( "Helv", 8 );
146
147 if ( PrfQueryProfileSize( HINI_USERPROFILE, app, scope, &keyLen ) && keyLen ) {
148 keyLen ++; // reserve space for a dot
149 char *buf = new char [keyLen];
150 ULONG realLen =
151 PrfQueryProfileString( HINI_USERPROFILE, app, scope, def, buf, keyLen );
152 realLen --; // excude zero terminator
153
154 // parse the font definition
155 int height = 0;
156 char *dot = strchr( buf, '.' ), *dot2 = 0;
157 if ( dot ) {
158 *dot = 0;
159 height = strtoul( buf, NULL, 10 );
160 dot2 = strchr( ++ dot, '.' );
161 if ( dot2 ) {
162 // process simulated styles
163 buf[realLen] = '.';
164 buf[realLen+1] = 0;
165 strupr( dot2 );
166/// @todo (dmik) currently, simulated bold and italic font styles are not
167// supported by Qt/OS2 because Qt doesn't support style simulation
168// explicitly. the code below is commented out to prevent selecting
169// true fonts when simulated ones are actually requested.
170// if ( strstr( dot2, ".BOLD." ) ) f.setBold( TRUE );
171// if ( strstr( dot2, ".ITALIC.") ) f.setItalic( TRUE );
172 if ( strstr( dot2, ".UNDERSCORE.") ) f.setUnderline( TRUE );
173 if ( strstr( dot2, ".UNDERLINED.") ) f.setUnderline( TRUE );
174 if ( strstr( dot2, ".STRIKEOUT.") ) f.setStrikeOut( TRUE );
175 *dot2 = 0;
176 }
177 // query non-simulated styles
178 FONTMETRICS fm;
179 LONG cnt = 1; // use the first match
180 GpiQueryFonts(
181 qt_display_ps(), QF_PUBLIC, dot, &cnt, sizeof(FONTMETRICS), &fm );
182 if ( cnt ) {
183 // the code below is mostly from QFontDatabasePrivate::reload()
184 if ( fm.fsSelection & FM_SEL_ITALIC ) f.setItalic( TRUE );
185 if ( fm.fsType & FM_TYPE_FIXED ) f.setFixedPitch( TRUE );
186 USHORT weight = fm.usWeightClass;
187 USHORT width = fm.usWidthClass;
188 if ( weight < 4 ) f.setWeight( QFont::Light );
189 else if ( weight < 6 ) f.setWeight( QFont::Normal );
190 else if ( weight < 7 ) f.setWeight( QFont::DemiBold );
191 else if ( weight < 8 ) f.setWeight( QFont::Bold );
192 else f.setWeight( QFont::Black );
193 switch ( width ) {
194 case 1: f.setStretch( QFont::UltraCondensed ); break;
195 case 2: f.setStretch( QFont::ExtraCondensed ); break;
196 case 3: f.setStretch( QFont::Condensed ); break;
197 case 4: f.setStretch( QFont::SemiCondensed ); break;
198 case 5: f.setStretch( QFont::Unstretched ); break;
199 case 6: f.setStretch( QFont::SemiExpanded ); break;
200 case 7: f.setStretch( QFont::Expanded ); break;
201 case 8: f.setStretch( QFont::ExtraExpanded ); break;
202 case 9: f.setStretch( QFont::UltraExpanded ); break;
203 default: f.setStretch( QFont::Unstretched ); break;
204 }
205 f.setFamily( fm.szFamilyname );
206 f.setPointSize( height );
207 }
208 }
209 delete[] buf;
210 }
211 return f;
212}
213
214/*****************************************************************************
215 Internal variables and functions
216 *****************************************************************************/
217
218static HWND curWin = 0; // current window
219static HPS displayPS = 0; // display presentation space
220
221#if !defined (QT_NO_SESSIONMANAGER)
222
223// Session management
224static bool sm_blockUserInput = FALSE;
225static bool sm_smActive = FALSE;
226extern QSessionManager* qt_session_manager_self;
227static bool sm_cancel = FALSE;
228static bool sm_gracefulShutdown = FALSE;
229static bool sm_quitSkipped = FALSE;
230bool qt_about_to_destroy_wnd = FALSE;
231
232//#define DEBUG_SESSIONMANAGER
233
234#endif
235
236static bool replayPopupMouseEvent = FALSE; // replay handling when popups close
237
238static bool ignoreNextMouseReleaseEvent = FALSE; // ignore the next release event if
239 // return from a modal widget
240#if defined(QT_DEBUG)
241static bool appNoGrab = FALSE; // mouse/keyboard grabbing
242#endif
243
244static bool app_do_modal = FALSE; // modal mode
245extern QWidgetList *qt_modal_stack;
246extern QDesktopWidget *qt_desktopWidget;
247static QWidget *popupButtonFocus = 0;
248static bool popupCloseDownMode = FALSE;
249static bool qt_try_modal( QWidget *, QMSG *, int& ret );
250
251QWidget *qt_button_down = 0; // widget got last button-down
252
253extern bool qt_tryAccelEvent( QWidget*, QKeyEvent* ); // def in qaccel.cpp
254
255static HWND autoCaptureWnd = 0;
256static bool autoCaptureReleased = FALSE;
257static void setAutoCapture( HWND ); // automatic capture
258static void releaseAutoCapture();
259
260//@@TODO (dmik):
261// do we really need this filter stuff or qApp->pmEventFilter()
262// is enough?
263typedef int (*QPMEventFilter) (QMSG*);
264static QPMEventFilter qt_pm_event_filter = 0;
265
266Q_EXPORT QPMEventFilter qt_set_pm_event_filter( QPMEventFilter filter )
267{
268 QPMEventFilter old_filter = qt_pm_event_filter;
269 qt_pm_event_filter = filter;
270 return old_filter;
271}
272
273typedef bool (*QPMEventFilterEx) (QMSG*,MRESULT&);
274static QPMEventFilterEx qt_pm_event_filter_ex = 0;
275
276Q_EXPORT QPMEventFilterEx qt_set_pm_event_filter_ex( QPMEventFilterEx filter )
277{
278 QPMEventFilterEx old = qt_pm_event_filter_ex;
279 qt_pm_event_filter_ex = filter;
280 return old;
281}
282
283bool qt_pmEventFilter( QMSG* msg, MRESULT &result )
284{
285 result = NULL;
286 if ( qt_pm_event_filter && qt_pm_event_filter( msg ) )
287 return TRUE;
288 if ( qt_pm_event_filter_ex && qt_pm_event_filter_ex( msg, result ) )
289 return TRUE;
290 return qApp->pmEventFilter( msg );
291}
292
293static void unregWinClasses();
294
295extern QCursor *qt_grab_cursor();
296
297extern "C" MRESULT EXPENTRY QtWndProc( HWND, ULONG, MPARAM, MPARAM );
298
299class QETWidget : public QWidget // event translator widget
300{
301public:
302 void setWFlags( WFlags f ) { QWidget::setWFlags(f); }
303 void clearWFlags( WFlags f ) { QWidget::clearWFlags(f); }
304 void setWState( WState f ) { QWidget::setWState(f); }
305 void clearWState( WState f ) { QWidget::clearWState(f); }
306 QWExtra *xtra() { return QWidget::extraData(); }
307 QTLWExtra *top() { return QWidget::topData(); }
308 bool pmEvent( QMSG *m ) { return QWidget::pmEvent(m); }
309#if defined(Q_CC_GNU)
310 void markFrameStrutDirty() { fstrut_dirty = 1; }
311#else
312 void markFrameStrutDirty() { QWidget::fstrut_dirty = 1; }
313#endif
314 void updateFrameStrut() { QWidget::updateFrameStrut(); }
315 bool translateMouseEvent( const QMSG &qmsg );
316 bool translateKeyEvent( const QMSG &qmsg, bool grab );
317#ifndef QT_NO_WHEELEVENT
318 bool translateWheelEvent( const QMSG &qmsg );
319#endif
320 bool sendKeyEvent( QEvent::Type type, int code, int ascii,
321 int state, bool grab, const QString& text,
322 bool autor = FALSE );
323 bool translatePaintEvent( const QMSG &qmsg );
324 bool translateConfigEvent( const QMSG &qmsg );
325 bool translateCloseEvent( const QMSG &qmsg );
326//@@TODO (dmik): later
327// void repolishStyle( QStyle &style ) { styleChange( style ); }
328//@@TODO (dmik): it seems we don't need this
329// void reparentWorkaround();
330 void showChildren(bool spontaneous) { QWidget::showChildren(spontaneous); }
331 void hideChildren(bool spontaneous) { QWidget::hideChildren(spontaneous); }
332};
333
334//@@TODO (dmik): it seems we don't need this
335//void QETWidget::reparentWorkaround()
336//{
337// ((QWidgetIntDict*)QWidget::wmapper())->remove((long)winid);
338// clearWState(WState_Created | WState_Visible | WState_ForceHide);
339// winid = 0;
340// QRect geom = geometry();
341// create(0, FALSE, FALSE);
342// setGeometry(geom);
343// QWidget *p = parentWidget();
344// while (p) {
345// if (!p->isVisible())
346// return;
347// p = p->parentWidget();
348// }
349// show();
350//}
351
352
353static bool qt_show_system_menu( QWidget* tlw )
354{
355 HWND fId = tlw->winFId();
356 HWND sysMenu = WinWindowFromID( fId, FID_SYSMENU );
357 if ( !sysMenu )
358 return FALSE; // no menu for this window
359 WinPostMsg( sysMenu, MM_STARTMENUMODE, MPFROM2SHORT(TRUE, FALSE), 0 );
360 return TRUE;
361}
362
363// Palette handling
364extern QPalette *qt_std_pal;
365extern void qt_create_std_palette();
366
367static void qt_set_pm_resources()
368{
369 // Do the font settings
370
371 QFont windowFont = qt_sysfont2qfont( "WindowText" );
372 QFont menuFont = qt_sysfont2qfont( "Menus" );
373 QFont iconFont = qt_sysfont2qfont( "IconText" );
374 QFont titleFont = qt_sysfont2qfont( "WindowTitles" );
375
376 QApplication::setFont( windowFont, TRUE );
377 QApplication::setFont( menuFont, TRUE, "QPopupMenu" );
378 QApplication::setFont( menuFont, TRUE, "QMenuBar" );
379 QApplication::setFont( iconFont, TRUE, "QTipLabel" );
380 QApplication::setFont( iconFont, TRUE, "QStatusBar" );
381 QApplication::setFont( titleFont, TRUE, "QTitleBar" );
382 QApplication::setFont( titleFont, TRUE, "QDockWindowTitleBar" );
383
384 if ( qt_std_pal && *qt_std_pal != QApplication::palette() )
385 return;
386
387 // Do the color settings
388
389 // active colors
390 QColorGroup acg;
391 acg.setColor( QColorGroup::Foreground,
392 QColor( qt_sysclr2qrgb( SYSCLR_WINDOWTEXT ) ) );
393 acg.setColor( QColorGroup::Background,
394 QColor( qt_sysclr2qrgb( SYSCLR_DIALOGBACKGROUND ) ) );
395 acg.setColor( QColorGroup::ButtonText,
396 QColor( qt_sysclr2qrgb( SYSCLR_MENUTEXT ) ) );
397 acg.setColor( QColorGroup::Button,
398 QColor( qt_sysclr2qrgb( SYSCLR_BUTTONMIDDLE ) ) );
399 acg.setColor( QColorGroup::Light,
400 QColor( qt_sysclr2qrgb( SYSCLR_BUTTONLIGHT ) ) );
401 acg.setColor( QColorGroup::Dark,
402 QColor( qt_sysclr2qrgb( SYSCLR_BUTTONDARK ) ) );
403 acg.setColor( QColorGroup::Midlight,
404 QColor( (acg.light().red() + acg.button().red()) / 2,
405 (acg.light().green() + acg.button().green()) / 2,
406 (acg.light().blue() + acg.button().blue()) / 2 ) );
407 acg.setColor( QColorGroup::Mid,
408 QColor( (acg.dark().red() + acg.button().red()) / 2,
409 (acg.dark().green() + acg.button().green()) / 2,
410 (acg.dark().blue() + acg.button().blue()) / 2 ) );
411 acg.setColor( QColorGroup::Text,
412 QColor( qt_sysclr2qrgb( SYSCLR_MENUTEXT ) ) );
413 acg.setColor( QColorGroup::Base,
414 QColor( qt_sysclr2qrgb( SYSCLR_ENTRYFIELD ) ) );
415 acg.setColor( QColorGroup::BrightText,
416 QColor( qt_sysclr2qrgb( SYSCLR_BUTTONLIGHT ) ) );
417 acg.setColor( QColorGroup::Shadow,
418 Qt::black );
419 acg.setColor( QColorGroup::Highlight,
420 QColor( qt_sysclr2qrgb( SYSCLR_HILITEBACKGROUND ) ) );
421 acg.setColor( QColorGroup::HighlightedText,
422 QColor( qt_sysclr2qrgb( SYSCLR_HILITEFOREGROUND ) ) );
423
424 // these colors are not present in the PM system palette
425 acg.setColor( QColorGroup::Link, Qt::blue );
426 acg.setColor( QColorGroup::LinkVisited, Qt::magenta );
427
428 // disabled colors
429 QColorGroup dcg = acg;
430 dcg.setColor( QColorGroup::Foreground,
431 QColor( qt_sysclr2qrgb( SYSCLR_MENUDISABLEDTEXT ) ) );
432 dcg.setColor( QColorGroup::Text,
433 QColor( qt_sysclr2qrgb( SYSCLR_MENUDISABLEDTEXT ) ) );
434
435 // inactive colors are currently the same as active
436 QColorGroup icg = acg;
437
438 QPalette pal( acg, dcg, icg );
439 QApplication::setPalette( pal, TRUE );
440 *qt_std_pal = pal;
441
442 // a special palette for menus
443 acg.setColor( QColorGroup::Highlight,
444 QColor( qt_sysclr2qrgb( SYSCLR_MENUHILITEBGND ) ) );
445 acg.setColor( QColorGroup::HighlightedText,
446 QColor( qt_sysclr2qrgb( SYSCLR_MENUHILITE ) ) );
447 QApplication::setPalette( QPalette( acg, dcg, icg ), TRUE, "QPopupMenu");
448 QApplication::setPalette( QPalette( acg, dcg, icg ), TRUE, "QMenuBar");
449}
450
451/*****************************************************************************
452 qt_init() - initializes Qt for OS/2
453 *****************************************************************************/
454
455// wrapper for QtOS2SysXcptMainHandler to provide local access to private data
456class QtOS2SysXcptMainHandlerInternal : public QtOS2SysXcptMainHandler
457{
458public:
459 static bool &installed() { return QtOS2SysXcptMainHandler::installed; }
460 static ERR &libcHandler() { return QtOS2SysXcptMainHandler::libcHandler; }
461 static ERR handler() { return QtOS2SysXcptMainHandler::handler; }
462};
463
464#define XcptMainHandler QtOS2SysXcptMainHandlerInternal
465
466// need to get default font?
467extern bool qt_app_has_font;
468
469void qt_init( int *argcptr, char **argv, QApplication::Type )
470{
471#if !defined(QT_OS2_NO_SYSEXCEPTIONS)
472 // Even if the user didn't install the exception handler for the main
473 // thread using QtOS2SysXcptMainHandler prior to constructing a QApplication
474 // instance, we still want it to be installed to catch system traps. But
475 // since the exception registration record can only be located on the stack,
476 // we can enable our exception handling on the main thread only if the LIBC
477 // library of the compiler provides an exception handler (already allocated
478 // on the stack before main() is called). In this case, we replace the LIBC
479 // exception handler's pointer with our own (not nice but what to do?) and
480 // call the former (to let it do signal processing and the stuff) after we
481 // generate the trap file. Note that in this tricky case, the user has no
482 // possibility to install the exception handler callback (since it's only
483 // possible using QtOS2SysXcptMainHandler).
484
485 PTIB ptib = NULL;
486 DosGetInfoBlocks( &ptib, NULL );
487 Q_ASSERT( ptib && ptib->tib_ptib2 );
488
489 if ( ptib && ptib->tib_ptib2 ) {
490 // must be called only on the main (first) thread
491 Q_ASSERT( ptib->tib_ptib2->tib2_ultid == 1 );
492 // also make sure that QtOS2SysXcptMainHandler was not already
493 // instantiated on the main thread
494 if ( ptib->tib_ptib2->tib2_ultid == 1 &&
495 XcptMainHandler::installed() == FALSE )
496 {
497 if ( ptib->tib_pexchain != END_OF_CHAIN ) {
498 PEXCEPTIONREGISTRATIONRECORD r =
499 (PEXCEPTIONREGISTRATIONRECORD) ptib->tib_pexchain;
500 XcptMainHandler::libcHandler() = r->ExceptionHandler;
501 r->ExceptionHandler = XcptMainHandler::handler();
502 XcptMainHandler::installed() = TRUE;
503 } else {
504 Q_ASSERT( 0 /* no exception handler for the main thread */ );
505 }
506 }
507 }
508#endif
509
510#if defined(QT_DEBUG)
511 int argc = *argcptr;
512 int i, j;
513
514 // Get command line params
515
516 j = argc ? 1 : 0;
517 for ( i=1; i<argc; i++ ) {
518 if ( argv[i] && *argv[i] != '-' ) {
519 argv[j++] = argv[i];
520 continue;
521 }
522 QCString arg = argv[i];
523 if ( arg == "-nograb" )
524 appNoGrab = !appNoGrab;
525 else
526 argv[j++] = argv[i];
527 }
528 *argcptr = j;
529#else
530 Q_UNUSED( argcptr );
531 Q_UNUSED( argv );
532#endif // QT_DEBUG
533
534 // Ensure we are in PM mode
535 qt_ensure_pm();
536 // Force creation of the main event queue to make it possible to
537 // create windows before the application invokes exec()
538 QApplication::eventLoop();
539
540 // Misc. initialization
541 QPMMime::initialize();
542 QColor::initialize();
543 QFont::initialize();
544 QCursor::initialize();
545 QPainter::initialize();
546#if defined(QT_THREAD_SUPPORT)
547 QThread::initialize();
548#endif
549 qApp->setName( qAppName() );
550
551 // default font
552 if ( !qt_app_has_font )
553 QApplication::setFont( QFont( "Helv", 8 ) );
554
555 // QFont::locale_init(); ### Uncomment when it does something on OS/2
556
557 if ( !qt_std_pal )
558 qt_create_std_palette();
559
560 if ( QApplication::desktopSettingsAware() )
561 qt_set_pm_resources();
562
563/// @todo (dmik) remove?
564// QInputContext::init();
565}
566
567/*****************************************************************************
568 qt_cleanup() - cleans up when the application is finished
569 *****************************************************************************/
570
571void qt_cleanup()
572{
573 unregWinClasses();
574 QPixmapCache::clear();
575 QPainter::cleanup();
576 QCursor::cleanup();
577 QFont::cleanup();
578 QColor::cleanup();
579 QSharedDoubleBuffer::cleanup();
580#if defined(QT_THREAD_SUPPORT)
581 QThread::cleanup();
582#endif
583 if ( displayPS ) {
584 WinReleasePS( displayPS );
585 displayPS = 0;
586 }
587
588//@@TODO (dmik): remove?
589// QInputContext::shutdown();
590
591#if !defined(QT_OS2_NO_SYSEXCEPTIONS)
592 // remove the exception handler if it was installed in qt_init()
593 PTIB ptib = NULL;
594 DosGetInfoBlocks( &ptib, NULL );
595 Q_ASSERT( ptib && ptib->tib_ptib2 );
596
597 if ( ptib && ptib->tib_ptib2 ) {
598 // must be called only on the main (first) thread
599 Q_ASSERT( ptib->tib_ptib2->tib2_ultid == 1 );
600 // also make sure the handler was really installed by qt_init()
601 if ( ptib->tib_ptib2->tib2_ultid == 1 &&
602 XcptMainHandler::installed() == TRUE &&
603 XcptMainHandler::libcHandler() != NULL )
604 {
605 Q_ASSERT( ptib->tib_pexchain != END_OF_CHAIN );
606 if ( ptib->tib_pexchain != END_OF_CHAIN ) {
607 PEXCEPTIONREGISTRATIONRECORD r =
608 (PEXCEPTIONREGISTRATIONRECORD) ptib->tib_pexchain;
609 Q_ASSERT( r->ExceptionHandler == XcptMainHandler::handler() );
610 if ( r->ExceptionHandler == XcptMainHandler::handler() ) {
611 r->ExceptionHandler = XcptMainHandler::libcHandler();
612 XcptMainHandler::libcHandler() = NULL;
613 XcptMainHandler::installed() = FALSE;
614 }
615 }
616 }
617 }
618#endif
619}
620
621
622/*****************************************************************************
623 Platform specific global and internal functions
624 *****************************************************************************/
625
626Q_EXPORT const char *qAppFileName() // get application file name
627{
628 static char appFileName[CCHMAXPATH] = "\0";
629 if ( !appFileName[0] ) {
630 PPIB ppib;
631 DosGetInfoBlocks( NULL, &ppib );
632 DosQueryModuleName( ppib->pib_hmte, sizeof(appFileName), appFileName );
633 }
634 return appFileName;
635}
636
637Q_EXPORT const char *qAppName() // get application name
638{
639 static char appName[CCHMAXPATH] = "\0";
640 if ( !appName[0] ) {
641 const char *p = strrchr( qAppFileName(), '\\' ); // skip path
642 if ( p )
643 memcpy( appName, p+1, qstrlen(p) );
644 int l = qstrlen( appName );
645 if ( (l > 4) && !qstricmp( appName + l - 4, ".exe" ) )
646 appName[l-4] = '\0'; // drop .exe extension
647 }
648 return appName;
649}
650
651Q_EXPORT HPS qt_display_ps() // get display PS
652{
653 if ( !displayPS )
654 displayPS = WinGetScreenPS( HWND_DESKTOP );
655 return displayPS;
656}
657
658bool qt_nograb() // application no-grab option
659{
660#if defined(QT_DEBUG)
661 return appNoGrab;
662#else
663 return FALSE;
664#endif
665}
666
667
668static QAsciiDict<int> *winclassNames = 0;
669
670const QString qt_reg_winclass( int flags ) // register window class
671{
672 if ( flags & Qt::WType_Desktop )
673 return QString();
674
675 if ( !winclassNames ) {
676 winclassNames = new QAsciiDict<int>;
677 Q_CHECK_PTR( winclassNames );
678 }
679
680 ULONG style = 0;
681 QString cname;
682 if ( flags & Qt::WType_TopLevel ) {
683 if ( flags & Qt::WType_Popup ) {
684 cname = "QPopup";
685 } else {
686 // this class is for frame window clients when WC_FRAME is used.
687 cname = "QClient";
688 style |= CS_MOVENOTIFY;
689 }
690 } else {
691 cname = "QWidget";
692 }
693
694 if ( winclassNames->find(cname.latin1()) ) // already registered
695 return cname;
696
697 // QT_EXTRAWINDATASIZE is defined in qwindowdefs_pm.h.
698 WinRegisterClass( 0, cname.latin1(), QtWndProc, style, QT_EXTRAWINDATASIZE );
699
700 winclassNames->insert( cname.latin1(), (int*)1 );
701 return cname;
702}
703
704static void unregWinClasses()
705{
706 if ( !winclassNames )
707 return;
708 // there is no need to unregister private window classes -- it is done
709 // automatically upon process termination.
710 delete winclassNames;
711 winclassNames = 0;
712}
713
714
715/*****************************************************************************
716 Platform specific QApplication members
717 *****************************************************************************/
718
719void QApplication::setMainWidget( QWidget *mainWidget )
720{
721 main_widget = mainWidget;
722}
723
724//@@TODO (dmik): later (os/2 version?)
725//Qt::WindowsVersion QApplication::winVersion()
726//{
727// return qt_winver;
728//}
729
730#ifndef QT_NO_CURSOR
731
732/*****************************************************************************
733 QApplication cursor stack
734 *****************************************************************************/
735
736typedef QPtrList<QCursor> QCursorList;
737
738static QCursorList *cursorStack = 0;
739
740void QApplication::setOverrideCursor( const QCursor &cursor, bool replace )
741{
742 if ( !cursorStack ) {
743 cursorStack = new QCursorList;
744 Q_CHECK_PTR( cursorStack );
745 cursorStack->setAutoDelete( TRUE );
746 }
747 app_cursor = new QCursor( cursor );
748 Q_CHECK_PTR( app_cursor );
749 if ( replace )
750 cursorStack->removeLast();
751 cursorStack->append( app_cursor );
752 WinSetPointer( HWND_DESKTOP, app_cursor->handle() );
753}
754
755void QApplication::restoreOverrideCursor()
756{
757 if ( !cursorStack ) // no cursor stack
758 return;
759 cursorStack->removeLast();
760 app_cursor = cursorStack->last();
761 if ( app_cursor ) {
762 WinSetPointer( HWND_DESKTOP, app_cursor->handle() );
763 } else {
764 delete cursorStack;
765 cursorStack = 0;
766 QWidget *w = QWidget::find( curWin );
767 if ( w )
768 WinSetPointer( HWND_DESKTOP, w->cursor().handle() );
769 else
770 WinSetPointer( HWND_DESKTOP, arrowCursor.handle() );
771 }
772}
773
774#endif
775
776/*
777 Internal function called from QWidget::setCursor()
778*/
779
780void qt_set_cursor( QWidget *w, const QCursor& /* c */)
781{
782 if ( !curWin )
783 return;
784 QWidget* cW = QWidget::find( curWin );
785 if ( !cW || cW->topLevelWidget() != w->topLevelWidget() ||
786 !cW->isVisible() || !cW->hasMouse() || cursorStack )
787 return;
788
789 WinSetPointer( HWND_DESKTOP, cW->cursor().handle() );
790}
791
792
793void QApplication::setGlobalMouseTracking( bool enable )
794{
795 bool tellAllWidgets;
796 if ( enable ) {
797 tellAllWidgets = (++app_tracking == 1);
798 } else {
799 tellAllWidgets = (--app_tracking == 0);
800 }
801 if ( tellAllWidgets ) {
802 QWidgetIntDictIt it( *((QWidgetIntDict*)QWidget::mapper) );
803 register QWidget *w;
804 while ( (w=it.current()) ) {
805 if ( app_tracking > 0 ) { // switch on
806 if ( !w->testWState(WState_MouseTracking) ) {
807 w->setMouseTracking( TRUE );
808 }
809 } else { // switch off
810 if ( w->testWState(WState_MouseTracking) ) {
811 w->setMouseTracking( FALSE );
812 }
813 }
814 ++it;
815 }
816 }
817}
818
819
820/*****************************************************************************
821 Routines to find a Qt widget from a screen position
822 *****************************************************************************/
823
824static QWidget *findChildWidget( const QWidget *p, const QPoint &pos )
825{
826 if ( p->children() ) {
827 QWidget *w;
828 QObjectListIt it( *p->children() );
829 it.toLast();
830 while ( it.current() ) {
831 if ( it.current()->isWidgetType() ) {
832 w = (QWidget*)it.current();
833 if ( w->isVisible() && w->geometry().contains(pos) ) {
834 QWidget *c = findChildWidget( w, w->mapFromParent(pos) );
835 return c ? c : w;
836 }
837 }
838 --it;
839 }
840 }
841 return 0;
842}
843
844QWidget *QApplication::widgetAt( int x, int y, bool child )
845{
846 // flip y coordinate
847 y = desktop()->height() - (y + 1);
848 POINTL ptl = { x, y };
849 HWND win = WinWindowFromPoint( HWND_DESKTOP, &ptl, child );
850 if ( !win )
851 return 0;
852
853 QWidget *w = QWidget::find( win );
854 if( !w && !child )
855 return 0;
856//@@TODO (dmik): can it ever happen that a child window is a not Qt window
857// but its (grand) parent is?
858 while (
859 !w && (win = WinQueryWindow( win, QW_PARENT )) != desktop()->winId()
860 ) {
861 w = QWidget::find( win );
862 }
863 return w;
864}
865
866void QApplication::beep()
867{
868 WinAlarm( HWND_DESKTOP, WA_WARNING );
869}
870
871/*****************************************************************************
872 OS/2-specific drawing used here
873 *****************************************************************************/
874
875static void drawTile( HPS hps, int x, int y, int w, int h,
876 const QPixmap *pixmap, int xOffset, int yOffset, int devh )
877{
878 int yPos, xPos, drawH, drawW, yOff, xOff;
879 yPos = y;
880 yOff = yOffset;
881 while( yPos < y + h ) {
882 drawH = pixmap->height() - yOff; // Cropping first row
883 if ( yPos + drawH > y + h ) // Cropping last row
884 drawH = y + h - yPos;
885 xPos = x;
886 xOff = xOffset;
887 while( xPos < x + w ) {
888 drawW = pixmap->width() - xOff; // Cropping first column
889 if ( xPos + drawW > x + w ) // Cropping last column
890 drawW = x + w - xPos;
891//@@TODO (dmik): optimize: flip y only once and change loops accodringly
892 // flip y coordinates
893 POINTL ptls[] = {
894 { xPos, yPos }, { xPos + drawW, drawH },
895 { xOff, pixmap->height() - (yOff + drawH) }
896 };
897 if ( devh ) ptls[0].y = devh - (ptls[0].y + drawH);
898 ptls[1].y += ptls[0].y;
899 GpiBitBlt( hps, pixmap->handle(), 3, ptls, ROP_SRCCOPY, BBO_IGNORE );
900 xPos += drawW;
901 xOff = 0;
902 }
903 yPos += drawH;
904 yOff = 0;
905 }
906}
907
908//@@TODO (dmik): implement as fill pattern?
909// masks and transforms are not used here.
910Q_EXPORT
911void qt_fill_tile( QPixmap *tile, const QPixmap &pixmap )
912{
913 copyBlt( tile, 0, 0, &pixmap, 0, 0, -1, -1);
914 int x = pixmap.width();
915 while ( x < tile->width() ) {
916 copyBlt( tile, x, 0, tile, 0, 0, x, pixmap.height() );
917 x *= 2;
918 }
919 int y = pixmap.height();
920 while ( y < tile->height() ) {
921 copyBlt( tile, 0, y, tile, 0, 0, tile->width(), y );
922 y *= 2;
923 }
924}
925
926//@@TODO (dmik): implement as fill pattern?
927// masks and transforms are not used here.
928Q_EXPORT
929void qt_draw_tiled_pixmap( HPS hps, int x, int y, int w, int h,
930 const QPixmap *bg_pixmap,
931 int off_x, int off_y, int devh )
932{
933 QPixmap *tile = 0;
934 QPixmap *pm;
935 int sw = bg_pixmap->width(), sh = bg_pixmap->height();
936 if ( sw*sh < 8192 && sw*sh < 16*w*h ) {
937 int tw = sw, th = sh;
938 while ( tw*th < 32678 && tw < w/2 )
939 tw *= 2;
940 while ( tw*th < 32678 && th < h/2 )
941 th *= 2;
942 tile = new QPixmap( tw, th, bg_pixmap->depth(),
943 QPixmap::NormalOptim );
944 qt_fill_tile( tile, *bg_pixmap );
945 pm = tile;
946 } else {
947 pm = (QPixmap*)bg_pixmap;
948 }
949 drawTile( hps, x, y, w, h, pm, off_x, off_y, devh );
950 if ( tile )
951 delete tile;
952}
953
954
955
956/*****************************************************************************
957 Main event loop
958 *****************************************************************************/
959
960extern uint qGlobalPostedEventsCount();
961
962#ifndef QT_NO_DRAGANDDROP
963extern MRESULT qt_dispatchDragAndDrop( QWidget *, const QMSG & ); // qdnd_pm.cpp
964#endif
965
966/*!
967 The message procedure calls this function for every message
968 received. Reimplement this function if you want to process window
969 messages \e msg that are not processed by Qt. If you don't want
970 the event to be processed by Qt, then return TRUE; otherwise
971 return FALSE.
972*/
973bool QApplication::pmEventFilter( QMSG * /*msg*/ ) // OS/2 PM event filter
974{
975 return FALSE;
976}
977
978/*!
979 If \a gotFocus is TRUE, \a widget will become the active window.
980 Otherwise the active window is reset to NULL.
981*/
982void QApplication::pmFocus( QWidget *widget, bool gotFocus )
983{
984 if ( gotFocus ) {
985 setActiveWindow( widget );
986 if ( active_window && active_window->testWFlags( WType_Dialog ) ) {
987 // raise the entire application, not just the dialog
988 QWidget* mw = active_window;
989 while( mw->parentWidget() && mw->testWFlags( WType_Dialog) )
990 mw = mw->parentWidget()->topLevelWidget();
991 if ( mw != active_window )
992 WinSetWindowPos( mw->winFId(), HWND_TOP, 0, 0, 0, 0, SWP_ZORDER );
993 }
994 } else {
995 setActiveWindow( 0 );
996 }
997}
998
999//
1000// QtWndProc() receives all messages from the main event loop
1001//
1002
1003enum {
1004 // some undocumented messages (they have the WM_U_ prefix for clarity)
1005
1006 // sent to hwnd that has been entered to by a mouse pointer.
1007 // FID_CLIENT also receives enter messages of its WC_FRAME.
1008 // mp1 = hwnd that is entered, mp2 = hwnd that is left
1009 WM_U_MOUSEENTER = 0x41E,
1010 // sent to hwnd that has been left by a mouse pointer.
1011 // FID_CLIENT also receives leave messages of its WC_FRAME.
1012 // mp1 = hwnd that is left, mp2 = hwnd that is entered
1013 WM_U_MOUSELEAVE = 0x41F,
1014
1015 // some undocumented system values
1016
1017 SV_WORKAREA_YTOP = 51,
1018 SV_WORKAREA_YBOTTOM = 52,
1019 SV_WORKAREA_XRIGHT = 53,
1020 SV_WORKAREA_XLEFT = 54,
1021};
1022
1023static bool inLoop = FALSE;
1024
1025#define RETURN(x) { inLoop = FALSE; return (MRESULT) (x); }
1026
1027inline bool qt_sendSpontaneousEvent( QObject *receiver, QEvent *event )
1028{
1029 return QApplication::sendSpontaneousEvent( receiver, event );
1030}
1031
1032extern "C" MRESULT EXPENTRY QtWndProc( HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2 )
1033{
1034 // message handling indicators: if result is true at the end of message
1035 // processing, no default window proc is called but rc is returned.
1036 bool result = TRUE;
1037 MRESULT rc = (MRESULT) 0;
1038
1039 QEvent::Type evt_type = QEvent::None;
1040 QETWidget *widget = 0;
1041 bool isMouseEvent = FALSE;
1042
1043 if ( !qApp ) // unstable app state
1044 goto do_default;
1045
1046 // make sure we show widgets (e.g. scrollbars) when the user resizes
1047 if ( inLoop && qApp->loopLevel() )
1048 qApp->sendPostedEvents( 0, QEvent::ShowWindowRequest );
1049
1050 inLoop = TRUE;
1051
1052 isMouseEvent =
1053 (msg >= WM_MOUSEFIRST && msg <= WM_MOUSELAST) ||
1054 (msg >= WM_EXTMOUSEFIRST && msg <= WM_EXTMOUSELAST);
1055//@@TODO (dmik): later (extra buttons)
1056// (message >= WM_XBUTTONDOWN && message <= WM_XBUTTONDBLCLK)
1057
1058 QMSG qmsg; // create QMSG structure
1059 qmsg.hwnd = hwnd;
1060 qmsg.msg = msg;
1061 qmsg.mp1 = mp1;
1062 qmsg.mp2 = mp2;
1063 qmsg.time = WinQueryMsgTime( 0 );
1064 if ( isMouseEvent || msg == WM_CONTEXTMENU ) {
1065 qmsg.ptl.x = (short)SHORT1FROMMP(mp1);
1066 qmsg.ptl.y = (short)SHORT2FROMMP(mp1);
1067 WinMapWindowPoints( qmsg.hwnd, HWND_DESKTOP, &qmsg.ptl, 1 );
1068 } else {
1069 WinQueryMsgPos( 0, &qmsg.ptl );
1070 }
1071 // flip y coordinate
1072 qmsg.ptl.y = QApplication::desktop()->height() - (qmsg.ptl.y + 1);
1073
1074 if ( qt_pmEventFilter( &qmsg, rc ) ) // send through app filter
1075 RETURN( rc );
1076
1077 switch ( msg ) {
1078#if !defined (QT_NO_SESSIONMANAGER)
1079 case WM_SAVEAPPLICATION: {
1080#if defined (DEBUG_SESSIONMANAGER)
1081 qDebug( "WM_SAVEAPPLICATION: sm_gracefulShutdown=%d "
1082 "qt_about_to_destroy_wnd=%d (mp1=%p mp2=%p)",
1083 sm_gracefulShutdown, qt_about_to_destroy_wnd,
1084 mp1, mp2 );
1085#endif
1086 // PM seems to post this message to all top-level windows on system
1087 // shutdown, so react only to the first one. Also, this message is
1088 // always sent by WinDestroyWindow(), where it must be also ignored.
1089 if ( !qt_about_to_destroy_wnd && !sm_smActive &&
1090 !sm_gracefulShutdown ) {
1091 sm_smActive = TRUE;
1092 sm_gracefulShutdown = TRUE;
1093 sm_blockUserInput = TRUE; // prevent user-interaction outside interaction windows
1094 sm_cancel = FALSE;
1095 sm_quitSkipped = FALSE;
1096 if ( qt_session_manager_self )
1097 qApp->commitData( *qt_session_manager_self );
1098 sm_smActive = FALSE; // session management has been finished
1099 if ( sm_cancel ) {
1100 // Here we try to cancel the Extended XWorkplace shutdown.
1101 // If it's XWorkplace who sent us WM_SAVEAPPLICATION, then
1102 // it probably passed us non-NULL parameters, so that
1103 // mp1 = it's window handle and mp2 = WM_COMMAND code to
1104 // cancel the shutdown procedure.
1105 HWND shutdownHwnd = HWNDFROMMP(mp1);
1106 if ( WinIsWindow( 0, shutdownHwnd ) ) {
1107 WinPostMsg( shutdownHwnd, WM_COMMAND, mp2, 0 );
1108 // Ensure we will get WM_QUIT anyway, even if xwp was
1109 // not that fast to post it yet (we need it to correctly
1110 // finish the graceful shutdown procedure)
1111 sm_quitSkipped = TRUE;
1112 }
1113 }
1114 // repost WM_QUIT to ourselves because we might have ignored
1115 // it in qt_app_canQuit(), so will not get one anymore
1116 if ( sm_quitSkipped )
1117 WinPostMsg( hwnd, WM_QUIT, 0, 0 );
1118 }
1119 // PMREF recommends to pass it to WinDefWindowProc()
1120 rc = WinDefWindowProc( hwnd, msg, mp1, mp2 );
1121 RETURN( rc );
1122 }
1123#endif
1124
1125 case WM_SYSVALUECHANGED: {
1126 // This message is sent to all top-level widgets, handle only once
1127 QWidgetList *list = QApplication::topLevelWidgets();
1128 bool firstWidget = list->first()->winId() == hwnd;
1129 delete list;
1130 if ( !firstWidget )
1131 break;
1132 LONG from = (LONG) mp1;
1133 LONG to = (LONG) mp2;
1134 #define _IS_SV(sv) (from >= (sv) && to <= (sv))
1135 if ( _IS_SV( SV_WORKAREA_XLEFT ) || _IS_SV( SV_WORKAREA_XRIGHT ) ||
1136 _IS_SV( SV_WORKAREA_YBOTTOM ) || _IS_SV( SV_WORKAREA_YTOP ) ) {
1137 // send a special invalid resize event to QDesktopWidget
1138 QResizeEvent re( QSize( -1, -1 ), QSize( -1, -1 ) );
1139 QApplication::sendEvent( qt_desktopWidget, &re );
1140 /// @todo (dmik) enumerate all top-level widgets and
1141 // remaximize those that are maximized
1142 } else {
1143 /// @todo (dmik) call qt_set_pm_resources() in the way it is
1144 // done in WM_SYSCOLORCHANGE for relevant SV_ values.
1145 }
1146 #undef _IS_SV
1147 break;
1148 }
1149
1150 case WM_SYSCOLORCHANGE: {
1151 // This message is sent to all top-level widgets, handle only once
1152 QWidgetList *list = QApplication::topLevelWidgets();
1153 bool firstWidget = list->first()->winId() == hwnd;
1154 delete list;
1155 if ( !firstWidget )
1156 break;
1157 if ( qApp->type() == QApplication::Tty )
1158 break;
1159 if ( QApplication::desktopSettingsAware() ) {
1160 widget = (QETWidget*)QWidget::find( hwnd );
1161 if ( widget && !widget->parentWidget() )
1162 qt_set_pm_resources();
1163 }
1164 break;
1165 }
1166
1167 case WM_BUTTON1DOWN:
1168 case WM_BUTTON2DOWN:
1169 case WM_BUTTON3DOWN:
1170 if ( ignoreNextMouseReleaseEvent )
1171 ignoreNextMouseReleaseEvent = FALSE;
1172 break;
1173 case WM_BUTTON1UP:
1174 case WM_BUTTON2UP:
1175 case WM_BUTTON3UP:
1176 if ( ignoreNextMouseReleaseEvent ) {
1177 ignoreNextMouseReleaseEvent = FALSE;
1178 if ( qt_button_down && qt_button_down->winId() == autoCaptureWnd ) {
1179 releaseAutoCapture();
1180 qt_button_down = 0;
1181 }
1182 RETURN( TRUE );
1183 }
1184 break;
1185
1186 default:
1187 break;
1188 }
1189
1190 if ( !widget )
1191 widget = (QETWidget*)QWidget::find( hwnd );
1192 if ( !widget ) // don't know this widget
1193 goto do_default;
1194
1195 if ( app_do_modal ) { // modal event handling
1196 int ret = 0;
1197 if ( !qt_try_modal( widget, &qmsg, ret ) )
1198 return MRESULT( ret );
1199 }
1200
1201 if ( widget->pmEvent( &qmsg ) ) // send through widget filter
1202 RETURN( TRUE );
1203
1204 if ( isMouseEvent ) { // mouse events
1205 if ( qApp->activePopupWidget() != 0 ) { // in popup mode
1206 QWidget* w = QApplication::widgetAt( qmsg.ptl.x, qmsg.ptl.y, TRUE );
1207 if ( w ) {
1208 POINTL ptl = { SHORT1FROMMP(qmsg.mp1), SHORT2FROMMP(qmsg.mp1) };
1209 WinMapWindowPoints( qmsg.hwnd, w->winId(), &ptl, 1 );
1210 qmsg.mp1 = MPFROM2SHORT( ptl.x, ptl.y );
1211 widget = (QETWidget*)w;
1212 }
1213 }
1214 result = widget->translateMouseEvent( qmsg );
1215 rc = (MRESULT) result;
1216#ifndef QT_NO_WHEELEVENT
1217 } else if ( msg == WM_VSCROLL || msg == WM_HSCROLL ) {
1218 result = widget->translateWheelEvent( qmsg );
1219 rc = (MRESULT) result;
1220#endif
1221#ifndef QT_NO_DRAGANDDROP
1222 } else if ( msg >= WM_DRAGFIRST && msg <= WM_DRAGLAST ) {
1223 RETURN( qt_dispatchDragAndDrop( widget, qmsg ) );
1224#endif
1225 } else {
1226 switch ( msg ) {
1227
1228 case WM_TRANSLATEACCEL:
1229 if ( widget->isTopLevel() ) {
1230 rc = WinDefWindowProc( hwnd, msg, mp1, mp2 );
1231 if ( rc ) {
1232 QMSG &qmsg = *(QMSG*) mp1;
1233 if (
1234 qmsg.msg == WM_SYSCOMMAND &&
1235 WinWindowFromID( widget->winFId(), FID_SYSMENU )
1236 ) {
1237 switch ( SHORT1FROMMP(qmsg.mp1) ) {
1238 case SC_CLOSE:
1239 case SC_TASKMANAGER:
1240 RETURN( TRUE );
1241 default:
1242 break;
1243 }
1244 }
1245 }
1246 }
1247 // return FALSE in all other cases to let Qt process keystrokes
1248 // that are in the system-wide frame accelerator table.
1249 RETURN( FALSE );
1250
1251 case WM_CHAR: { // keyboard event
1252#if 0
1253 qDebug( "WM_CHAR: [%s]", widget->name() );
1254#endif
1255 QWidget *g = QWidget::keyboardGrabber();
1256 if ( g )
1257 widget = (QETWidget*)g;
1258 else if ( qApp->focusWidget() )
1259 widget = (QETWidget*)qApp->focusWidget();
1260 else if ( !widget )
1261/// @todo (dmik) currently we don't use WinSetFocus(). what for? Qt seems
1262// to completely handle focus traversal itself.
1263// || widget->winId() == WinQueryFocus( HWND_DESKTOP ) ) // We faked the message to go to exactly that widget.
1264 widget = (QETWidget*)widget->topLevelWidget();
1265 if ( widget->isEnabled() ) {
1266/// @todo (dmik) we should not pass WM_CHAR to the default window proc,
1267// otherwise it will come to us again through the widget parent (owner in PM)
1268// if the widget is not top-level, and will be treated by translateKeyEvent()
1269// as a key repeat (in case of key down) or a lost key (in case of key up).
1270// NOTE: currently we don't use WinSetFocus(), so the active top-level window
1271// will always have the focus, so it doesn't matter wheither we pass WM_CHAR
1272// to the default window proc or not.
1273// result = widget->translateKeyEvent( qmsg, g != 0 );
1274// rc = (MRESULT) result;
1275 RETURN( widget->translateKeyEvent( qmsg, g != 0 ) );
1276 }
1277 break;
1278 }
1279
1280/// @todo (dmik) later
1281// case WM_APPCOMMAND:
1282// {
1283// uint cmd = GET_APPCOMMAND_LPARAM(lParam);
1284// uint uDevice = GET_DEVICE_LPARAM(lParam);
1285// uint dwKeys = GET_KEYSTATE_LPARAM(lParam);
1286//
1287// int state = translateButtonState( dwKeys, QEvent::KeyPress, 0 );
1288//
1289// switch ( uDevice ) {
1290// case FAPPCOMMAND_KEY:
1291// {
1292// int key = 0;
1293//
1294// switch( cmd ) {
1295// case APPCOMMAND_BASS_BOOST:
1296// key = Qt::Key_BassBoost;
1297// break;
1298// case APPCOMMAND_BASS_DOWN:
1299// key = Qt::Key_BassDown;
1300// break;
1301// case APPCOMMAND_BASS_UP:
1302// key = Qt::Key_BassUp;
1303// break;
1304// case APPCOMMAND_BROWSER_BACKWARD:
1305// key = Qt::Key_Back;
1306// break;
1307// case APPCOMMAND_BROWSER_FAVORITES:
1308// key = Qt::Key_Favorites;
1309// break;
1310// case APPCOMMAND_BROWSER_FORWARD:
1311// key = Qt::Key_Forward;
1312// break;
1313// case APPCOMMAND_BROWSER_HOME:
1314// key = Qt::Key_HomePage;
1315// break;
1316// case APPCOMMAND_BROWSER_REFRESH:
1317// key = Qt::Key_Refresh;
1318// break;
1319// case APPCOMMAND_BROWSER_SEARCH:
1320// key = Qt::Key_Search;
1321// break;
1322// case APPCOMMAND_BROWSER_STOP:
1323// key = Qt::Key_Stop;
1324// break;
1325// case APPCOMMAND_LAUNCH_APP1:
1326// key = Qt::Key_Launch0;
1327// break;
1328// case APPCOMMAND_LAUNCH_APP2:
1329// key = Qt::Key_Launch1;
1330// break;
1331// case APPCOMMAND_LAUNCH_MAIL:
1332// key = Qt::Key_LaunchMail;
1333// break;
1334// case APPCOMMAND_LAUNCH_MEDIA_SELECT:
1335// key = Qt::Key_LaunchMedia;
1336// break;
1337// case APPCOMMAND_MEDIA_NEXTTRACK:
1338// key = Qt::Key_MediaNext;
1339// break;
1340// case APPCOMMAND_MEDIA_PLAY_PAUSE:
1341// key = Qt::Key_MediaPlay;
1342// break;
1343// case APPCOMMAND_MEDIA_PREVIOUSTRACK:
1344// key = Qt::Key_MediaPrev;
1345// break;
1346// case APPCOMMAND_MEDIA_STOP:
1347// key = Qt::Key_MediaStop;
1348// break;
1349// case APPCOMMAND_TREBLE_DOWN:
1350// key = Qt::Key_TrebleDown;
1351// break;
1352// case APPCOMMAND_TREBLE_UP:
1353// key = Qt::Key_TrebleUp;
1354// break;
1355// case APPCOMMAND_VOLUME_DOWN:
1356// key = Qt::Key_VolumeDown;
1357// break;
1358// case APPCOMMAND_VOLUME_MUTE:
1359// key = Qt::Key_VolumeMute;
1360// break;
1361// case APPCOMMAND_VOLUME_UP:
1362// key = Qt::Key_VolumeUp;
1363// break;
1364// default:
1365// break;
1366// }
1367// if ( key ) {
1368// bool res = FALSE;
1369// QWidget *g = QWidget::keyboardGrabber();
1370// if ( g )
1371// widget = (QETWidget*)g;
1372// else if ( qApp->focusWidget() )
1373// widget = (QETWidget*)qApp->focusWidget();
1374// else
1375// widget = (QETWidget*)widget->topLevelWidget();
1376// if ( widget->isEnabled() )
1377// res = ((QETWidget*)widget)->sendKeyEvent( QEvent::KeyPress, key, 0, state, FALSE, QString::null, g != 0 );
1378// if ( res )
1379// return TRUE;
1380// }
1381// }
1382// break;
1383//
1384// default:
1385// break;
1386// }
1387//
1388// result = FALSE;
1389// }
1390// break;
1391
1392//@@TODO (dmik):
1393// we can cause WC_FRAME to send equivalents of WM_NCMOUSEMOVE,
1394// but is it really necesary? We already do some similar stuff in WM_HITTEST
1395//#ifndef Q_OS_TEMP
1396// case WM_NCMOUSEMOVE:
1397// {
1398// // span the application wide cursor over the
1399// // non-client area.
1400// QCursor *c = qt_grab_cursor();
1401// if ( !c )
1402// c = QApplication::overrideCursor();
1403// if ( c ) // application cursor defined
1404// SetCursor( c->handle() );
1405// else
1406// result = FALSE;
1407// // generate leave event also when the caret enters
1408// // the non-client area.
1409// qt_dispatchEnterLeave( 0, QWidget::find(curWin) );
1410// curWin = 0;
1411// }
1412// break;
1413//#endif
1414
1415/// @todo (dmik) later (WM_KBDLAYERCHANGED (0xBD4)?)
1416// case WM_SETTINGCHANGE:
1417// if ( !msg.wParam ) {
1418// QString area = QT_WA_INLINE( QString::fromUcs2( (unsigned short *)msg.lParam ),
1419// QString::fromLocal8Bit( (char*)msg.lParam ) );
1420// if ( area == "intl" )
1421// QApplication::postEvent( widget, new QEvent( QEvent::LocaleChange ) );
1422// }
1423// break;
1424//
1425 case WM_PAINT: // paint event
1426 result = widget->translatePaintEvent( qmsg );
1427 break;
1428 case WM_ERASEBACKGROUND: // erase window background
1429 // flush WM_PAINT messages here to update window contents
1430 // instantly while tracking the resize frame (normally these
1431 // messages are delivered after the user has stopped resizing
1432 // for some time). this slows down resizing slightly but gives a
1433 // better look (no invalid window contents can be seen during
1434 // resize). the alternative could be to erase the background only,
1435 // but we need to do it for every non-toplevel window, which can
1436 // also be time-consuming (WM_ERASEBACKGROUND is sent to WC_FRAME
1437 // clients only, so we would have to do all calculations ourselves).
1438 WinUpdateWindow( widget->winId() );
1439 RETURN( FALSE );
1440 break;
1441 case WM_CALCVALIDRECTS:
1442 // we must always return this value here to cause PM to reposition
1443 // our children accordingly (othwerwise we would have to do it
1444 // ourselves to keep them top-left aligned).
1445 RETURN( CVR_ALIGNLEFT | CVR_ALIGNTOP );
1446 break;
1447
1448 case WM_MOVE: // move window
1449 case WM_SIZE: // resize window
1450 result = widget->translateConfigEvent( qmsg );
1451 break;
1452
1453 case WM_ACTIVATE:
1454#if 0
1455 qDebug( "WM_ACTIVATE: [%s] %d", widget->name(), SHORT1FROMMP(mp1) );
1456#endif
1457 qApp->pmFocus( widget, SHORT1FROMMP(mp1) );
1458 break;
1459
1460 case WM_SETFOCUS:
1461#if 0
1462 qDebug( "WM_SETFOCUS: [%s] %s [%s]", widget->name(),
1463 SHORT1FROMMP(mp2) ? "<=" : "=>",
1464 QWidget::find( (HWND)mp1 ) ? QWidget::find( (HWND)mp1 )->name()
1465 : "{foreign}" );
1466#endif
1467 result = FALSE;
1468 if ( !SHORT1FROMMP(mp2) ) {
1469 // we're losing focus
1470 if ( !QWidget::find( (HWND)mp1 ) ) {
1471 if ( QApplication::activePopupWidget() ) {
1472 // Another application was activated while our popups are open,
1473 // then close all popups. In case some popup refuses to close,
1474 // we give up after 1024 attempts (to avoid an infinite loop).
1475 int maxiter = 1024;
1476 QWidget *popup;
1477 while ( (popup=QApplication::activePopupWidget()) && maxiter-- )
1478 popup->close();
1479 }
1480 if (
1481 // non-Qt ownees of our WC_FRAME window (such as
1482 // FID_SYSMENU) should not cause the focus to be lost.
1483 WinQueryWindow( (HWND)mp1, QW_OWNER ) ==
1484 widget->topLevelWidget()->winFId()
1485 )
1486 break;
1487 if ( !widget->isTopLevel() )
1488 qApp->pmFocus( widget, SHORT1FROMMP(mp2) );
1489 }
1490 }
1491 break;
1492
1493/// @todo (dmik) remove?
1494//#ifndef Q_OS_TEMP
1495// case WM_MOUSEACTIVATE:
1496// {
1497// const QWidget *tlw = widget->topLevelWidget();
1498// // Do not change activation if the clicked widget is inside a floating dock window
1499// if ( tlw->inherits( "QDockWindow" ) && qApp->activeWindow()
1500// && !qApp->activeWindow()->inherits("QDockWindow") )
1501// RETURN(MA_NOACTIVATE);
1502// }
1503// result = FALSE;
1504// break;
1505//#endif
1506
1507 case WM_SHOW:
1508 if ( !SHORT1FROMMP(mp1) && autoCaptureWnd == widget->winId() )
1509 releaseAutoCapture();
1510 result = FALSE;
1511 break;
1512/// @todo (dmik) remove later
1513// case WM_SHOWWINDOW:
1514//#ifndef Q_OS_TEMP
1515// if ( lParam == SW_PARENTOPENING ) {
1516// if ( widget->testWState(Qt::WState_ForceHide) )
1517// RETURN(0);
1518// }
1519//#endif
1520// if (!wParam && autoCaptureWnd == widget->winId())
1521// releaseAutoCapture();
1522// result = FALSE;
1523// break;
1524
1525 case WM_REALIZEPALETTE: // realize own palette
1526 if ( QColor::hPal() ) {
1527 HPS hps = WinGetPS( widget->winId() );
1528 GpiSelectPalette( hps, QColor::hPal() );
1529 ULONG cclr;
1530 WinRealizePalette( widget->winId(), hps, &cclr );
1531 WinReleasePS( hps );
1532 // on OS/2, the value returned by WinRealizePalette() does not
1533 // necessarily reflect the number of colors that have been
1534 // remapped. therefore, we cannot rely on it and must always
1535 // invalidate the window.
1536 WinInvalidateRect( widget->winId(), NULL, TRUE );
1537 RETURN( 0 );
1538 }
1539 break;
1540
1541 case WM_CLOSE: // close window
1542 widget->translateCloseEvent( qmsg );
1543 RETURN(0); // always handled
1544
1545/// @todo (dmik) it seems we don't need this
1546// case WM_DESTROY: // destroy window
1547// if ( hwnd == curWin ) {
1548// QEvent leave( QEvent::Leave );
1549// QApplication::sendEvent( widget, &leave );
1550// curWin = 0;
1551// }
1552// // We are blown away when our parent reparents, so we have to
1553// // recreate the handle
1554// if (widget->testWState(Qt::WState_Created))
1555// ((QETWidget*)widget)->reparentWorkaround();
1556// if ( widget == popupButtonFocus )
1557// popupButtonFocus = 0;
1558// result = FALSE;
1559// break;
1560
1561 case WM_CONTEXTMENU:
1562 if ( SHORT2FROMMP(mp2) ) {
1563 // keyboard event
1564 QWidget *fw = qApp->focusWidget();
1565 if ( fw ) {
1566 QContextMenuEvent e(
1567 QContextMenuEvent::Keyboard,
1568 QPoint( 5, 5 ),
1569 fw->mapToGlobal( QPoint( 5, 5 ) ),
1570 0
1571 );
1572 result = qt_sendSpontaneousEvent( fw, &e );
1573 rc = (MRESULT) result;
1574 }
1575 } else {
1576 // mouse event
1577 result = widget->translateMouseEvent( qmsg );
1578 rc = (MRESULT) result;
1579 }
1580 break;
1581
1582/// @todo (dmik) remove?
1583// case WM_IME_STARTCOMPOSITION:
1584// result = QInputContext::startComposition();
1585// break;
1586// case WM_IME_ENDCOMPOSITION:
1587// result = QInputContext::endComposition();
1588// break;
1589// case WM_IME_COMPOSITION:
1590// result = QInputContext::composition( lParam );
1591// break;
1592
1593#ifndef QT_NO_CLIPBOARD
1594 case WM_DRAWCLIPBOARD:
1595 case WM_RENDERFMT:
1596 case WM_RENDERALLFMTS:
1597 case WM_DESTROYCLIPBOARD:
1598 if ( qt_clipboard ) {
1599 QCustomEvent e( QEvent::Clipboard, &qmsg );
1600 qt_sendSpontaneousEvent( qt_clipboard, &e );
1601 RETURN(0);
1602 }
1603 result = FALSE;
1604 break;
1605#endif
1606
1607/// @todo (dmik) remove? functionality is implemented in WM_SETFOCUS above.
1608// case WM_KILLFOCUS:
1609// if ( !QWidget::find( (HWND)wParam ) ) { // we don't get focus, so unset it now
1610// if ( !widget->hasFocus() ) // work around Windows bug after minimizing/restoring
1611// widget = (QETWidget*)qApp->focusWidget();
1612// HWND focus = ::GetFocus();
1613// if ( !widget || (focus && ::IsChild( widget->winId(), focus )) ) {
1614// result = FALSE;
1615// } else {
1616// widget->clearFocus();
1617// result = TRUE;
1618// }
1619// } else {
1620// result = FALSE;
1621// }
1622// break;
1623
1624//@@TODO (dmik): later
1625// case WM_THEMECHANGED:
1626// if ( widget->testWFlags( Qt::WType_Desktop ) || !qApp || qApp->closingDown()
1627// || qApp->type() == QApplication::Tty )
1628// break;
1629//
1630// if ( widget->testWState(Qt::WState_Polished) )
1631// qApp->style().unPolish(widget);
1632//
1633// if ( widget->testWState(Qt::WState_Polished) )
1634// qApp->style().polish(widget);
1635// widget->repolishStyle( qApp->style() );
1636// if ( widget->isVisible() )
1637// widget->update();
1638// break;
1639//
1640// case WM_COMMAND:
1641// result = (wParam == 0x1);
1642// if ( result )
1643// QApplication::postEvent( widget, new QEvent( QEvent::OkRequest ) );
1644// break;
1645// case WM_HELP:
1646// QApplication::postEvent( widget, new QEvent( QEvent::HelpRequest ) );
1647// result = TRUE;
1648// break;
1649//#endif
1650
1651 case WM_U_MOUSELEAVE:
1652 // We receive a mouse leave for curWin, meaning
1653 // the mouse was moved outside our widgets
1654 if ( widget->winId() == curWin && (HWND) mp1 == curWin ) {
1655 bool dispatch = !widget->hasMouse();
1656 // hasMouse is updated when dispatching enter/leave,
1657 // so test if it is actually up-to-date
1658 if ( !dispatch ) {
1659 QRect geom = widget->geometry();
1660 if ( widget->parentWidget() && !widget->isTopLevel() ) {
1661 QPoint gp = widget->parentWidget()->mapToGlobal( widget->pos() );
1662 geom.setX( gp.x() );
1663 geom.setY( gp.y() );
1664 }
1665 QPoint cpos = QCursor::pos();
1666 dispatch = !geom.contains( cpos );
1667 }
1668 if ( dispatch ) {
1669 qt_dispatchEnterLeave( 0, QWidget::find( (WId)curWin ) );
1670 curWin = 0;
1671 }
1672 }
1673 break;
1674
1675/// @todo (dmik) remove? functionality is implemented in WM_SETFOCUS above.
1676// case WM_CANCELMODE:
1677// if ( qApp->focusWidget() ) {
1678// QFocusEvent::setReason( QFocusEvent::ActiveWindow );
1679// QFocusEvent e( QEvent::FocusOut );
1680// QApplication::sendEvent( qApp->focusWidget(), &e );
1681// QFocusEvent::resetReason();
1682// }
1683// break;
1684
1685 default:
1686 result = FALSE; // event was not processed
1687 break;
1688 }
1689 }
1690
1691 if ( evt_type != QEvent::None ) { // simple event
1692 QEvent e( evt_type );
1693 result = qt_sendSpontaneousEvent( widget, &e );
1694 }
1695 if ( result )
1696 RETURN( rc );
1697
1698do_default:
1699 RETURN( WinDefWindowProc( hwnd, msg, mp1, mp2 ) );
1700/// @todo (dmik) remove?
1701// RETURN( QInputContext::DefWindowProc(hwnd,message,wParam,lParam) )
1702}
1703
1704PFNWP QtOldFrameProc = 0;
1705
1706extern "C" MRESULT EXPENTRY QtFrameProc( HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2 )
1707{
1708 // message handling indicators: if result is true at the end of message
1709 // processing, no default window proc is called but rc is returned.
1710 bool result = FALSE;
1711 MRESULT rc = (MRESULT) FALSE;
1712 QETWidget *widget = 0;
1713 HWND hwndC = 0;
1714
1715 if ( !qApp ) // unstable app state
1716 goto do_default;
1717
1718 // make sure we show widgets (e.g. scrollbars) when the user resizes
1719 if ( inLoop && qApp->loopLevel() )
1720 qApp->sendPostedEvents( 0, QEvent::ShowWindowRequest );
1721
1722 inLoop = TRUE;
1723
1724 hwndC = WinWindowFromID( hwnd, FID_CLIENT );
1725 widget = (QETWidget*)QWidget::find( hwndC );
1726 if ( !widget ) // don't know this widget
1727 goto do_default;
1728
1729 switch ( msg ) {
1730 case WM_HITTEST: {
1731 if ( !WinIsWindowEnabled( hwnd ) ) {
1732 if (
1733 qApp->activePopupWidget() &&
1734 (WinQueryQueueStatus( HWND_DESKTOP ) & QS_MOUSEBUTTON)
1735 ) {
1736 // the user has clicked over the Qt window that is disabled
1737 // by some modal widget, therefore we close all popups. In
1738 // case some popup refuses to close, we give up after 1024
1739 // attempts (to avoid an infinite loop).
1740 int maxiter = 1024;
1741 QWidget *popup;
1742 while ( (popup=QApplication::activePopupWidget()) && maxiter-- )
1743 popup->close();
1744 }
1745#ifndef QT_NO_CURSOR
1746 else {
1747 QCursor *c = qt_grab_cursor();
1748 if ( !c )
1749 c = QApplication::overrideCursor();
1750 if ( c ) // application cursor defined
1751 WinSetPointer( HWND_DESKTOP, c->handle() );
1752 else
1753 WinSetPointer( HWND_DESKTOP, Qt::arrowCursor.handle() );
1754 }
1755#endif
1756 }
1757 break;
1758 }
1759
1760 case WM_ADJUSTWINDOWPOS: {
1761 SWP &swp = *(PSWP) mp1;
1762 if ( swp.fl & SWP_MAXIMIZE ) {
1763 QWExtra *x = widget->xtra();
1764 if ( x ) {
1765 result = TRUE;
1766 rc = QtOldFrameProc( hwnd, msg, mp1, mp2 );
1767 int maxw = QWIDGETSIZE_MAX, maxh = QWIDGETSIZE_MAX;
1768 QTLWExtra *top = widget->top();
1769 if ( x->maxw < QWIDGETSIZE_MAX )
1770 maxw = x->maxw + top->fleft + top->fright;
1771 if ( x->maxh < QWIDGETSIZE_MAX )
1772 maxh = x->maxh + top->ftop + top->fbottom;
1773 if ( maxw < QWIDGETSIZE_MAX ) swp.cx = maxw;
1774 if ( maxh < QWIDGETSIZE_MAX ) {
1775 swp.y = swp.y + swp.cy - maxh;
1776 swp.cy = maxh;
1777 }
1778 }
1779 }
1780 if ( (swp.fl & SWP_RESTORE) &&
1781 !(swp.fl & (SWP_MOVE | SWP_SIZE)) ) {
1782 QRect r = widget->top()->normalGeometry;
1783 if ( r.isValid() ) {
1784 // store normal geometry in window words
1785 USHORT x = r.x();
1786 USHORT y = r.y();
1787 USHORT w = r.width();
1788 USHORT h = r.height();
1789 // flip y coordinate
1790 y = QApplication::desktop()->height() - (y + h);
1791 WinSetWindowUShort( hwnd, QWS_XRESTORE, x );
1792 WinSetWindowUShort( hwnd, QWS_YRESTORE, y );
1793 WinSetWindowUShort( hwnd, QWS_CXRESTORE, w );
1794 WinSetWindowUShort( hwnd, QWS_CYRESTORE, h );
1795 widget->top()->normalGeometry.setWidth( 0 );
1796 }
1797 }
1798 if ( swp.fl & (SWP_ACTIVATE | SWP_ZORDER) ) {
1799 // get the modal widget that made this window blocked
1800 QWidget *m =
1801 (QWidget*) WinQueryWindowPtr( widget->winId(), QWL_QTMODAL );
1802 if( m ) {
1803 if ( swp.fl & SWP_ACTIVATE ) {
1804 QWidget *a = qt_modal_stack->first();
1805 if ( !a->isActiveWindow() )
1806 a->setActiveWindow();
1807 swp.fl &= ~SWP_ACTIVATE;
1808 }
1809 if ( swp.fl & SWP_ZORDER ) {
1810 QWidget *mp = m->parentWidget();
1811 if ( mp ) {
1812 mp = mp->topLevelWidget();
1813 if ( !mp->isDesktop() && mp != widget )
1814 m = mp;
1815 }
1816 HWND hm = m->winFId();
1817 if ( swp.hwndInsertBehind != hm ) {
1818 swp.hwndInsertBehind = hm;
1819 }
1820 }
1821 }
1822 }
1823 break;
1824 }
1825
1826 case WM_QUERYTRACKINFO: {
1827 QWExtra *x = widget->xtra();
1828 if ( x ) {
1829 result = TRUE;
1830 rc = QtOldFrameProc( hwnd, msg, mp1, mp2 );
1831 PTRACKINFO pti = (PTRACKINFO) mp2;
1832 int minw = 0, minh = 0;
1833 int maxw = QWIDGETSIZE_MAX, maxh = QWIDGETSIZE_MAX;
1834 QTLWExtra *top = widget->top();
1835 if ( x->minw > 0 )
1836 minw = x->minw + top->fleft + top->fright;
1837 if ( x->minh > 0 )
1838 minh = x->minh + top->ftop + top->fbottom;
1839 if ( x->maxw < QWIDGETSIZE_MAX )
1840 maxw = x->maxw + top->fleft + top->fright;
1841 if ( x->maxh < QWIDGETSIZE_MAX )
1842 maxh = x->maxh + top->ftop + top->fbottom;
1843 // obey system recommended minimum size (to emulate Qt/Win32)
1844 pti->ptlMinTrackSize.x = QMAX( minw, pti->ptlMinTrackSize.x );
1845 pti->ptlMinTrackSize.y = QMAX( minh, pti->ptlMinTrackSize.y );
1846 pti->ptlMaxTrackSize.x = maxw;
1847 pti->ptlMaxTrackSize.y = maxh;
1848 }
1849 break;
1850 }
1851
1852 case WM_TRACKFRAME: {
1853 if ( QApplication::activePopupWidget() ) {
1854 // The user starts to size/move the frame window, therefore
1855 // we close all popups. In case some popup refuses to close,
1856 // we give up after 1024 attempts (to avoid an infinite loop).
1857 int maxiter = 1024;
1858 QWidget *popup;
1859 while ( (popup=QApplication::activePopupWidget()) && maxiter-- )
1860 popup->close();
1861 }
1862 break;
1863 }
1864
1865 case WM_WINDOWPOSCHANGED: {
1866 // We detect spontaneous min/max/restore events here instead of
1867 // WM_MINMAXFRAME, because WM_MINMAXFRAME is a pre-process message
1868 // (i.e. no actual changes have been made) We need actual changes
1869 // in order to update the frame strut and send WindowStateChange.
1870 result = TRUE;
1871 rc = QtOldFrameProc( hwnd, msg, mp1, mp2 );
1872 ULONG awp = LONGFROMMP( mp2 );
1873 bool window_state_change = FALSE;
1874 if ( awp & AWP_MAXIMIZED ) {
1875 window_state_change = TRUE;
1876 widget->setWState( Qt::WState_Maximized );
1877 widget->clearWState( Qt::WState_FullScreen );
1878 if ( widget->isMinimized() ) {
1879 widget->clearWState( Qt::WState_Minimized );
1880 widget->showChildren( TRUE );
1881 QShowEvent e;
1882 qt_sendSpontaneousEvent( widget, &e );
1883 }
1884 } else if ( awp & AWP_MINIMIZED ) {
1885 window_state_change = TRUE;
1886 widget->setWState( Qt::WState_Minimized );
1887 widget->clearWState( Qt::WState_Maximized );
1888 widget->clearWState( Qt::WState_FullScreen );
1889 if ( widget->isVisible() ) {
1890 QHideEvent e;
1891 qt_sendSpontaneousEvent( widget, &e );
1892 widget->hideChildren( TRUE );
1893 }
1894 } else if ( awp & AWP_RESTORED ) {
1895 window_state_change = TRUE;
1896 if ( widget->isMinimized() ) {
1897 widget->showChildren( TRUE );
1898 QShowEvent e;
1899 qt_sendSpontaneousEvent( widget, &e );
1900 }
1901 widget->clearWState( Qt::WState_Minimized );
1902 widget->clearWState( Qt::WState_Maximized );
1903 }
1904 if ( window_state_change ) {
1905 widget->updateFrameStrut();
1906 if ( !widget->top()->in_sendWindowState ) {
1907 // send WindowStateChange event if this message is NOT
1908 // originated from QWidget::setWindowState().
1909 QEvent e( QEvent::WindowStateChange );
1910 qt_sendSpontaneousEvent( widget, &e );
1911 }
1912 }
1913 break;
1914 }
1915
1916 default:
1917 break;
1918 }
1919
1920 if ( result )
1921 RETURN( rc );
1922
1923do_default:
1924 RETURN( QtOldFrameProc( hwnd, msg, mp1, mp2 ) );
1925}
1926
1927/*****************************************************************************
1928 Modal widgets; We have implemented our own modal widget mechanism
1929 to get total control.
1930 A modal widget without a parent becomes application-modal.
1931 A modal widget with a parent becomes modal to its parent and grandparents..
1932
1933//@@TODO (dmik): the above comment is not correct (outdated?): for example,
1934// in accordance with the current Qt logic, a modal widget with a parent
1935// becomes modal to its (grand)parents upto the first of them that has the
1936// WGroupLeader flag, not necessarily to all...
1937
1938 qt_enter_modal()
1939 Enters modal state
1940 Arguments:
1941 QWidget *widget A modal widget
1942
1943 qt_leave_modal()
1944 Leaves modal state for a widget
1945 Arguments:
1946 QWidget *widget A modal widget
1947 *****************************************************************************/
1948
1949Q_EXPORT bool qt_modal_state()
1950{
1951 return app_do_modal;
1952}
1953
1954// helper for qt_dispatchBlocked().
1955// sends block events to the given widget and its children.
1956void qt_sendBlocked( QObject *obj, QWidget *modal, QEvent *e, bool override )
1957{
1958 if ( obj == modal ) {
1959 // don't touch modal itself and its children
1960 return;
1961 }
1962 bool blocked = e->type() == QEvent::WindowBlocked;
1963
1964 if ( obj->isWidgetType() ) {
1965 QWidget *w = (QWidget*) obj;
1966 if ( w->isTopLevel() ) {
1967 if ( w->testWFlags( Qt::WGroupLeader ) && !override ) {
1968 // stop sending on group leaders
1969 return;
1970 }
1971 QWidget *blockedBy =
1972 (QWidget*) WinQueryWindowPtr( w->winId(), QWL_QTMODAL );
1973 if ( blocked ) {
1974 // stop sending on alreay blocked widgets
1975 if ( blockedBy )
1976 return;
1977 } else {
1978 // stop sending on widgets blocked by another modal
1979 if ( blockedBy != modal )
1980 return;
1981 }
1982 WinSetWindowPtr( w->winId(), QWL_QTMODAL, blocked ? modal : NULL );
1983 WinEnableWindow( w->winFId(), !blocked );
1984 }
1985 }
1986 QApplication::sendEvent( obj, e );
1987
1988 // now send blocked to children
1989 if ( obj->children() ) {
1990 QObjectListIt it( *obj->children() );
1991 QObject *o;
1992 while( ( o = it.current() ) != 0 ) {
1993 ++it;
1994 qt_sendBlocked( o, modal, e, blocked ? FALSE : TRUE );
1995 }
1996 }
1997}
1998
1999// sends blocked/unblocked events to top-level widgets depending on the
2000// modal widget given and the WGroupLeader flag presence.
2001static void qt_dispatchBlocked( QWidget *modal, bool blocked )
2002{
2003 // we process those top-level windows that must be blocked
2004 // by the given modal -- this should correlate with the
2005 // qt_tryModalHelper() logic that is widget-centric (i.e. a try
2006 // to block a particular widget given the current set of
2007 // modals) rather than modal-centric (a try to block the current set
2008 // of widgets given a particular modal); currently it blocks events
2009 // for a top-level widget if the widget doesn't have (a parent with
2010 // with) the WGroupLeader flag or it has but (this parent) has a child
2011 // among the current set of modals. So, the modal-centric logic is
2012 // to block any top-level widget unless it has (a parent with) the
2013 // WGroupLeader flag and (this parent) is not (a child of) the modal's
2014 // group leader.
2015
2016 QEvent e( blocked ? QEvent::WindowBlocked : QEvent::WindowUnblocked );
2017
2018 if ( !blocked ) {
2019 // For unblocking, we go through all top-level widgets and unblock
2020 // those that have been blocked by the given modal widget. It means that
2021 // we don't select widgets to unblock based on widget flags (as we do
2022 // below when blocking) because these flags might have been changed
2023 // so that we could skip widgets that we would have to unblock. Although
2024 // normally widget flags should never be changed after widget creation
2025 // (except that by QWidget::reparentSys() that takes blocking into
2026 // account and corrects it as needed), nothing stops one from doing so,
2027 // leading to a case when the QWL_QTMODAL word of some widget still
2028 // points to a widget that has been deleted (so that any attempt to
2029 // access it results into a nasty segfault).
2030 QWidgetList *list = QApplication::topLevelWidgets();
2031 for( QWidget *w = list->first(); w; w = list->next() ) {
2032 if ( WinQueryWindowPtr( w->winId(), QWL_QTMODAL ) == modal )
2033 qt_sendBlocked( w, modal, &e, TRUE );
2034 }
2035 delete list;
2036 return;
2037 }
2038
2039 // find the modal's group leader
2040 QWidget *mgl = modal->parentWidget();
2041 while ( mgl && !mgl->testWFlags( Qt::WGroupLeader ) )
2042 mgl = mgl->parentWidget();
2043 if ( mgl ) {
2044 mgl = mgl->topLevelWidget();
2045 if ( mgl->isDesktop() )
2046 mgl = 0;
2047 }
2048
2049 QWidgetList *list = QApplication::topLevelWidgets();
2050 for( QWidget *w = list->first(); w; w = list->next() ) {
2051 if (
2052 !w->isDesktop() && !w->isPopup() &&
2053 !w->testWFlags( Qt::WGroupLeader ) &&
2054 (!w->parentWidget() || w->parentWidget()->isDesktop())
2055 ) {
2056 qt_sendBlocked( w, modal, &e, FALSE );
2057 }
2058 }
2059 delete list;
2060
2061 if ( mgl ) {
2062 // send blocked to modal's group leader
2063 qt_sendBlocked( mgl, modal, &e, TRUE );
2064 }
2065 // qt_tryModalHelper() also assumes that the toppest modal widget blocks
2066 // other modals, regardless of WGroupLeader flags in parents. do the same.
2067 // Note: the given modal is not yet at the stack here.
2068 if ( qt_modal_stack ) {
2069 QWidget *m = qt_modal_stack->first();
2070 while ( m ) {
2071 qt_sendBlocked( m, modal, &e, TRUE );
2072 m = qt_modal_stack->next();
2073 }
2074 }
2075}
2076
2077Q_EXPORT void qt_enter_modal( QWidget *widget )
2078{
2079 if ( !qt_modal_stack ) { // create modal stack
2080 qt_modal_stack = new QWidgetList;
2081 Q_CHECK_PTR( qt_modal_stack );
2082 }
2083
2084 if ( qt_modal_stack->containsRef( widget ) )
2085 return; // already modal
2086
2087//@@TODO (dmik): Qt/Win32 sends WindowBlocked/WindowUnblocked events only
2088// to the direct parent of the modal widget. Why? We use qt_dispatchBlocked()
2089// to send them to all windows that do not get input when the given widget
2090// is modal; also we disable/enable that windows there, which is essential
2091// for modality support in Qt/OS2 (code in QtOldFrameProc() and qt_try_modal()
2092// functionality depend on it).
2093//
2094// if (widget->parentWidget()) {
2095// QEvent e(QEvent::WindowBlocked);
2096// QApplication::sendEvent(widget->parentWidget(), &e);
2097// WinEnableWindow( widget->parentWidget()->winFId(), FALSE );
2098// }
2099 qt_dispatchBlocked( widget, TRUE );
2100
2101 releaseAutoCapture();
2102 qt_dispatchEnterLeave( 0, QWidget::find((WId)curWin));
2103 qt_modal_stack->insert( 0, widget );
2104 app_do_modal = TRUE;
2105 curWin = 0;
2106 qt_button_down = 0;
2107 ignoreNextMouseReleaseEvent = FALSE;
2108}
2109
2110
2111Q_EXPORT void qt_leave_modal( QWidget *widget )
2112{
2113 if ( qt_modal_stack && qt_modal_stack->removeRef(widget) ) {
2114 if ( qt_modal_stack->isEmpty() ) {
2115 delete qt_modal_stack;
2116 qt_modal_stack = 0;
2117 QPoint p( QCursor::pos() );
2118 app_do_modal = FALSE; // necessary, we may get recursively into qt_try_modal below
2119 QWidget* w = QApplication::widgetAt( p.x(), p.y(), TRUE );
2120 qt_dispatchEnterLeave( w, QWidget::find( curWin ) ); // send synthetic enter event
2121 curWin = w? w->winId() : 0;
2122 }
2123 ignoreNextMouseReleaseEvent = TRUE;
2124
2125 qt_dispatchBlocked( widget, FALSE );
2126 }
2127 app_do_modal = qt_modal_stack != 0;
2128
2129//@@TODO (dmik): see the comments inside qt_enter_modal()
2130//
2131// if (widget->parentWidget()) {
2132// WinEnableWindow( widget->parentWidget()->winFId(), TRUE );
2133// QEvent e(QEvent::WindowUnblocked);
2134// QApplication::sendEvent(widget->parentWidget(), &e);
2135// }
2136}
2137
2138static bool qt_blocked_modal( QWidget *widget )
2139{
2140 if ( !app_do_modal )
2141 return FALSE;
2142 if ( qApp->activePopupWidget() )
2143 return FALSE;
2144 if ( widget->testWFlags(Qt::WStyle_Tool) ) // allow tool windows
2145 return FALSE;
2146
2147 QWidget *modal=0, *top=qt_modal_stack->getFirst();
2148
2149 widget = widget->topLevelWidget();
2150 if ( widget->testWFlags(Qt::WShowModal) ) // widget is modal
2151 modal = widget;
2152 if ( !top || modal == top ) // don't block event
2153 return FALSE;
2154 return TRUE;
2155}
2156
2157static bool qt_try_modal( QWidget *widget, QMSG *qmsg, int &ret )
2158{
2159 QWidget * top = 0;
2160
2161 if ( qt_tryModalHelper( widget, &top ) )
2162 return TRUE;
2163
2164 bool block_event = FALSE;
2165 ULONG type = qmsg->msg;
2166
2167 if ( type == WM_CLOSE ) {
2168 block_event = TRUE;
2169 }
2170
2171 return !block_event;
2172}
2173
2174
2175/*****************************************************************************
2176 Popup widget mechanism
2177
2178 openPopup()
2179 Adds a widget to the list of popup widgets
2180 Arguments:
2181 QWidget *widget The popup widget to be added
2182
2183 closePopup()
2184 Removes a widget from the list of popup widgets
2185 Arguments:
2186 QWidget *widget The popup widget to be removed
2187 *****************************************************************************/
2188
2189void QApplication::openPopup( QWidget *popup )
2190{
2191 if ( !popupWidgets ) { // create list
2192 popupWidgets = new QWidgetList;
2193 Q_CHECK_PTR( popupWidgets );
2194 }
2195 popupWidgets->append( popup ); // add to end of list
2196 if ( !popup->isEnabled() )
2197 return;
2198
2199 if ( popupWidgets->count() == 1 && !qt_nograb() )
2200 setAutoCapture( popup->winId() ); // grab mouse/keyboard
2201 // Popups are not focus-handled by the window system (the first
2202 // popup grabbed the keyboard), so we have to do that manually: A
2203 // new popup gets the focus
2204 QFocusEvent::setReason( QFocusEvent::Popup );
2205 if ( popup->focusWidget())
2206 popup->focusWidget()->setFocus();
2207 else
2208 popup->setFocus();
2209 QFocusEvent::resetReason();
2210}
2211
2212void QApplication::closePopup( QWidget *popup )
2213{
2214 if ( !popupWidgets )
2215 return;
2216 popupWidgets->removeRef( popup );
2217 POINTL curPos;
2218 WinQueryPointerPos( HWND_DESKTOP, &curPos );
2219 // flip y coordinate
2220 curPos.y = desktop()->height() - (curPos.y + 1);
2221 replayPopupMouseEvent = !popup->geometry().contains( QPoint(curPos.x, curPos.y) );
2222 if ( popupWidgets->count() == 0 ) { // this was the last popup
2223 popupCloseDownMode = TRUE; // control mouse events
2224 delete popupWidgets;
2225 popupWidgets = 0;
2226 if ( !popup->isEnabled() )
2227 return;
2228 if ( !qt_nograb() ) // grabbing not disabled
2229 releaseAutoCapture();
2230 if ( active_window ) {
2231 QFocusEvent::setReason( QFocusEvent::Popup );
2232 if ( active_window->focusWidget() )
2233 active_window->focusWidget()->setFocus();
2234 else
2235 active_window->setFocus();
2236 QFocusEvent::resetReason();
2237 }
2238 } else {
2239 // Popups are not focus-handled by the window system (the
2240 // first popup grabbed the keyboard), so we have to do that
2241 // manually: A popup was closed, so the previous popup gets
2242 // the focus.
2243 QFocusEvent::setReason( QFocusEvent::Popup );
2244 QWidget* aw = popupWidgets->getLast();
2245 if ( popupWidgets->count() == 1 )
2246 setAutoCapture( aw->winId() );
2247 if (aw->focusWidget())
2248 aw->focusWidget()->setFocus();
2249 else
2250 aw->setFocus();
2251 QFocusEvent::resetReason();
2252 }
2253}
2254
2255
2256
2257/*****************************************************************************
2258 Event translation; translates OS/2 PM events to Qt events
2259 *****************************************************************************/
2260
2261// State holder for LWIN/RWIN and ALTGr keys
2262// (ALTGr is also necessary since OS/2 doesn't report ALTGr as KC_ALT)
2263static int qt_extraKeyState = 0;
2264
2265static int mouseButtonState()
2266{
2267 int state = 0;
2268
2269 if ( WinGetKeyState( HWND_DESKTOP, VK_BUTTON1 ) & 0x8000 )
2270 state |= Qt::LeftButton;
2271 if ( WinGetKeyState( HWND_DESKTOP, VK_BUTTON2 ) & 0x8000 )
2272 state |= Qt::RightButton;
2273 if ( WinGetKeyState( HWND_DESKTOP, VK_BUTTON3 ) & 0x8000 )
2274 state |= Qt::MidButton;
2275
2276 return state;
2277}
2278
2279//
2280// Auto-capturing for mouse press and mouse release
2281//
2282
2283static void setAutoCapture( HWND h )
2284{
2285 if ( autoCaptureWnd )
2286 releaseAutoCapture();
2287 autoCaptureWnd = h;
2288
2289 if ( !mouseButtonState() ) {
2290 // all buttons released, we don't actually capture the mouse
2291 // (see QWidget::translateMouseEvent())
2292 autoCaptureReleased = TRUE;
2293 } else {
2294 autoCaptureReleased = FALSE;
2295 WinSetCapture( HWND_DESKTOP, h );
2296 }
2297}
2298
2299static void releaseAutoCapture()
2300{
2301 if ( autoCaptureWnd ) {
2302 if ( !autoCaptureReleased ) {
2303 WinSetCapture( HWND_DESKTOP, 0 );
2304 autoCaptureReleased = TRUE;
2305 }
2306 autoCaptureWnd = 0;
2307 }
2308}
2309
2310
2311//
2312// Mouse event translation
2313//
2314
2315static ushort mouseTbl[] = {
2316 WM_MOUSEMOVE, QEvent::MouseMove, 0,
2317 WM_BUTTON1DOWN, QEvent::MouseButtonPress, Qt::LeftButton,
2318 WM_BUTTON1UP, QEvent::MouseButtonRelease, Qt::LeftButton,
2319 WM_BUTTON1DBLCLK, QEvent::MouseButtonDblClick, Qt::LeftButton,
2320 WM_BUTTON2DOWN, QEvent::MouseButtonPress, Qt::RightButton,
2321 WM_BUTTON2UP, QEvent::MouseButtonRelease, Qt::RightButton,
2322 WM_BUTTON2DBLCLK, QEvent::MouseButtonDblClick, Qt::RightButton,
2323 WM_BUTTON3DOWN, QEvent::MouseButtonPress, Qt::MidButton,
2324 WM_BUTTON3UP, QEvent::MouseButtonRelease, Qt::MidButton,
2325 WM_BUTTON3DBLCLK, QEvent::MouseButtonDblClick, Qt::MidButton,
2326//@@TODO (dmik): later (extra buttons)
2327// WM_XBUTTONDOWN, QEvent::MouseButtonPress, Qt::MidButton*2, //### Qt::XButton1/2
2328// WM_XBUTTONUP, QEvent::MouseButtonRelease, Qt::MidButton*2,
2329// WM_XBUTTONDBLCLK, QEvent::MouseButtonDblClick, Qt::MidButton*2,
2330 WM_CONTEXTMENU, QEvent::ContextMenu, 0,
2331 0, 0, 0
2332};
2333
2334static int translateButtonState( USHORT s, int type, int button )
2335{
2336 int bst = mouseButtonState();
2337
2338 if ( type == QEvent::ContextMenu ) {
2339 if ( WinGetKeyState( HWND_DESKTOP, VK_SHIFT ) & 0x8000 )
2340 bst |= Qt::ShiftButton;
2341 if ( WinGetKeyState( HWND_DESKTOP, VK_ALT ) & 0x8000 )
2342 bst |= Qt::AltButton;
2343 if ( WinGetKeyState( HWND_DESKTOP, VK_CTRL ) & 0x8000 )
2344 bst |= Qt::ControlButton;
2345 } else {
2346 if ( s & KC_SHIFT )
2347 bst |= Qt::ShiftButton;
2348 if ( (s & KC_ALT) )
2349 bst |= Qt::AltButton;
2350 if ( s & KC_CTRL )
2351 bst |= Qt::ControlButton;
2352 }
2353 if ( (qt_extraKeyState & Qt::AltButton) )
2354 bst |= Qt::AltButton;
2355 if ( qt_extraKeyState & Qt::MetaButton )
2356 bst |= Qt::MetaButton;
2357
2358 // Translate from OS/2-style "state after event"
2359 // to X-style "state before event"
2360 if ( type == QEvent::MouseButtonPress ||
2361 type == QEvent::MouseButtonDblClick )
2362 bst &= ~button;
2363 else if ( type == QEvent::MouseButtonRelease )
2364 bst |= button;
2365
2366 return bst;
2367}
2368
2369/*! \internal
2370 In DnD, the mouse release event never appears, so the
2371 mouse button state machine must be manually reset
2372*/
2373void qt_pmMouseButtonUp()
2374{
2375 // release any stored mouse capture
2376 qt_button_down = 0;
2377 autoCaptureReleased = TRUE;
2378 releaseAutoCapture();
2379}
2380
2381bool QETWidget::translateMouseEvent( const QMSG &qmsg )
2382{
2383#if 0
2384 static const char *msgNames[] = { // 11 items
2385 "WM_MOUSEMOVE",
2386 "WM_BUTTON1DOWN", "WM_BUTTON1UP", "WM_BUTTON1DBLCLK",
2387 "WM_BUTTON2DOWN", "WM_BUTTON2UP", "WM_BUTTON2DBLCLK",
2388 "WM_BUTTON3DOWN", "WM_BUTTON3UP", "WM_BUTTON3DBLCLK",
2389 "WM_???"
2390 };
2391 int msgIdx = qmsg.msg - WM_MOUSEMOVE;
2392 if (msgIdx < 0 || msgIdx > 9)
2393 msgIdx = 10;
2394 qDebug( "%s (%04lX): [%08lX/%p:%s/%s] %04hd,%04hd hit=%04hX fl=%04hX",
2395 msgNames[msgIdx], qmsg.msg, qmsg.hwnd, this, name(), className(),
2396 SHORT1FROMMP(qmsg.mp1), SHORT2FROMMP(qmsg.mp1),
2397 SHORT1FROMMP(qmsg.mp2), SHORT2FROMMP(qmsg.mp2) );
2398#endif
2399
2400 static QPoint pos; // window pos (y flipped)
2401 static POINTL gpos = { -1, -1 }; // global pos (y flipped)
2402 QEvent::Type type; // event parameters
2403 int button;
2404 int state;
2405 int i;
2406
2407 // candidate for a double click event
2408 static HWND dblClickCandidateWin = 0;
2409
2410 if ( sm_blockUserInput ) //block user interaction during session management
2411 return TRUE;
2412
2413 // Compress mouse move events
2414 if ( qmsg.msg == WM_MOUSEMOVE ) {
2415 QMSG mouseMsg;
2416 mouseMsg.msg = WM_NULL;
2417 while (
2418 WinPeekMsg( 0, &mouseMsg, qmsg.hwnd, WM_MOUSEMOVE,
2419 WM_MOUSEMOVE, PM_NOREMOVE )
2420 ) {
2421 if ( mouseMsg.mp2 != qmsg.mp2 )
2422 break; // leave the message in the queue because
2423 // the key state has changed
2424 // Remove the mouse move message
2425 WinPeekMsg( 0, &mouseMsg, qmsg.hwnd, WM_MOUSEMOVE,
2426 WM_MOUSEMOVE, PM_REMOVE );
2427 }
2428 // Update the passed in QMSG structure with the
2429 // most recent one.
2430 if ( mouseMsg.msg != WM_NULL ) {
2431 PQMSG pqmsg = (PQMSG)&qmsg;
2432 pqmsg->mp1 = mouseMsg.mp1;
2433 pqmsg->mp2 = mouseMsg.mp2;
2434 pqmsg->time = mouseMsg.time;
2435 pqmsg->ptl.x = (short)SHORT1FROMMP(mouseMsg.mp1);
2436 pqmsg->ptl.y = (short)SHORT2FROMMP(mouseMsg.mp1);
2437 WinMapWindowPoints( pqmsg->hwnd, HWND_DESKTOP, &pqmsg->ptl, 1 );
2438 // flip y coordinate
2439 pqmsg->ptl.y = QApplication::desktop()->height() - (pqmsg->ptl.y + 1);
2440 }
2441 }
2442
2443 for ( i = 0; mouseTbl[i] && (ULONG)mouseTbl[i] != qmsg.msg; i += 3 )
2444 ;
2445 if ( !mouseTbl[i] )
2446 return FALSE;
2447
2448 type = (QEvent::Type)mouseTbl[++i]; // event type
2449 button = mouseTbl[++i]; // which button
2450 state = translateButtonState( SHORT2FROMMP(qmsg.mp2), type, button ); // button state
2451
2452 // It seems, that PM remembers only the WM_BUTTONxDOWN message (instead of
2453 // the WM_BUTTONxDOWN + WM_BUTTONxUP pair) to detect whether the next button
2454 // press should be converted to WM_BUTTONxDBLCLK or not. As a result, the
2455 // window gets WM_BUTTONxDBLCLK even if it didn't receive the preceeding
2456 // WM_BUTTONxUP (this happens if we issue WinSetCapture() on the first
2457 // WM_BUTTONxDOWN), which is obviously wrong and makes problems for QWorkspace
2458 // and QTitleBar system menu handlers that don't expect a double click after
2459 // they opened a popup menu. dblClickCandidateWin is reset to 0 (see a ***
2460 // remmark below) when WinSetCapture is issued that directs messages
2461 // to a window other than one received the first WM_BUTTONxDOWN,
2462 // so we can fix it here. Note that if there is more than one popup window,
2463 // WinSetCapture is issued only for the first of them, so this code doesn't
2464 // prevent MouseButtonDblClick from being delivered to a popup when another
2465 // popup gets closed on the first WM_BUTTONxDOWN (Qt/Win32 behaves in the
2466 // same way, so it's left for compatibility).
2467 if ( type == QEvent::MouseButtonPress ) {
2468 dblClickCandidateWin = qmsg.hwnd;
2469 } else if ( type == QEvent::MouseButtonDblClick ) {
2470 if ( dblClickCandidateWin != qmsg.hwnd )
2471 type = QEvent::MouseButtonPress;
2472 dblClickCandidateWin = 0;
2473 }
2474
2475 if ( type == QEvent::ContextMenu ) {
2476 QPoint g = QPoint( qmsg.ptl.x, qmsg.ptl.y );
2477 QContextMenuEvent e( QContextMenuEvent::Mouse, mapFromGlobal( g ), g, state );
2478 QApplication::sendSpontaneousEvent( this, &e );
2479 return TRUE;
2480 }
2481
2482 if ( type == QEvent::MouseMove ) {
2483 if ( !(state & MouseButtonMask) )
2484 qt_button_down = 0;
2485#ifndef QT_NO_CURSOR
2486 QCursor *c = qt_grab_cursor();
2487 if ( !c )
2488 c = QApplication::overrideCursor();
2489 if ( c ) // application cursor defined
2490 WinSetPointer( HWND_DESKTOP, c->handle() );
2491 else if ( isEnabled() ) // use widget cursor if widget is enabled
2492 WinSetPointer( HWND_DESKTOP, cursor().handle() );
2493 else {
2494 QWidget *parent = parentWidget();
2495 while ( parent && !parent->isEnabled() )
2496 parent = parent->parentWidget();
2497 if ( parent )
2498 WinSetPointer( HWND_DESKTOP, parent->cursor().handle() );
2499 }
2500#else
2501 // pass the msg to the default proc to let it change the pointer shape
2502 WinDefWindowProc( qmsg.hwnd, qmsg.msg, qmsg.mp1, qmsg.mp2 );
2503#endif
2504 if ( curWin != winId() ) { // new current window
2505/// @todo (dmik)
2506// add CS_HITTEST to our window classes and handle WM_HITTEST,
2507// otherwise disabled windows will not get mouse events?
2508 qt_dispatchEnterLeave( this, QWidget::find(curWin) );
2509 curWin = winId();
2510 }
2511
2512 // *** PM posts a dummy WM_MOUSEMOVE message (with the same, uncahnged
2513 // pointer coordinates) after every WinSetCapture that actually changes
2514 // the capture target. I.e., if the argument of WinSetCapture is
2515 // NULLHANDLE, a window under the mouse pointer gets this message,
2516 // otherwise the specified window gets it unless it is already under the
2517 // pointer. We use this info to check whether the window can be a double
2518 // click candidate (see above).
2519 if ( qmsg.ptl.x == gpos.x && qmsg.ptl.y == gpos.y ) {
2520 if ( dblClickCandidateWin != qmsg.hwnd )
2521 dblClickCandidateWin = 0;
2522 return TRUE;
2523 }
2524
2525 gpos = qmsg.ptl;
2526
2527 if ( state == 0 && autoCaptureWnd == 0 && !hasMouseTracking() &&
2528 !QApplication::hasGlobalMouseTracking() )
2529 return TRUE; // no button
2530
2531 pos = mapFromGlobal( QPoint(gpos.x, gpos.y) );
2532 } else {
2533 if ( type == QEvent::MouseButtonPress && !isActiveWindow() )
2534 setActiveWindow();
2535
2536 gpos = qmsg.ptl;
2537 pos = mapFromGlobal( QPoint(gpos.x, gpos.y) );
2538
2539 if ( type == QEvent::MouseButtonPress || type == QEvent::MouseButtonDblClick ) { // mouse button pressed
2540 // Magic for masked widgets
2541 qt_button_down = findChildWidget( this, pos );
2542 if ( !qt_button_down || !qt_button_down->testWFlags(WMouseNoMask) )
2543 qt_button_down = this;
2544 }
2545 }
2546
2547 // detect special button states
2548 enum { Other, SinglePressed, AllReleased } btnState = Other;
2549 int bs = state & MouseButtonMask;
2550 if ( (type == QEvent::MouseButtonPress ||
2551 type == QEvent::MouseButtonDblClick) && bs == 0
2552 ) {
2553 btnState = SinglePressed;
2554 } else if ( type == QEvent::MouseButtonRelease && bs == button ) {
2555 btnState = AllReleased;
2556 }
2557
2558 if ( qApp->inPopupMode() ) { // in popup mode
2559 if ( !autoCaptureReleased && btnState == AllReleased ) {
2560 // in order to give non-Qt windows the opportunity to see mouse
2561 // messages while our popups are active we need to release the
2562 // mouse capture which is absolute in OS/2. we do it directly
2563 // (not through releaseAutoCapture()) in order to keep
2564 // autoCaptureWnd nonzero to keep forwarding mouse move events
2565 // (actually sent to one of Qt widgets) to the active popup.
2566 autoCaptureReleased = TRUE;
2567 WinSetCapture( HWND_DESKTOP, 0 );
2568 } else if ( autoCaptureReleased && btnState == SinglePressed ) {
2569 // set the mouse capture back if a button is pressed.
2570 if ( autoCaptureWnd ) {
2571 autoCaptureReleased = FALSE;
2572 WinSetCapture( HWND_DESKTOP, autoCaptureWnd );
2573 }
2574 }
2575
2576 replayPopupMouseEvent = FALSE;
2577 QWidget* activePopupWidget = qApp->activePopupWidget();
2578 QWidget *popup = activePopupWidget;
2579
2580 if ( popup != this ) {
2581 if ( testWFlags(WType_Popup) && rect().contains(pos) )
2582 popup = this;
2583 else // send to last popup
2584 pos = popup->mapFromGlobal( QPoint(gpos.x, gpos.y) );
2585 }
2586 QWidget *popupChild = findChildWidget( popup, pos );
2587 bool releaseAfter = FALSE;
2588 switch ( type ) {
2589 case QEvent::MouseButtonPress:
2590 case QEvent::MouseButtonDblClick:
2591 popupButtonFocus = popupChild;
2592 break;
2593 case QEvent::MouseButtonRelease:
2594 releaseAfter = TRUE;
2595 break;
2596 default:
2597 break; // nothing for mouse move
2598 }
2599
2600 if ( popupButtonFocus ) {
2601 QMouseEvent e( type,
2602 popupButtonFocus->mapFromGlobal(QPoint(gpos.x,gpos.y)),
2603 QPoint(gpos.x,gpos.y), button, state );
2604 QApplication::sendSpontaneousEvent( popupButtonFocus, &e );
2605 if ( releaseAfter ) {
2606 popupButtonFocus = 0;
2607 }
2608 } else if ( popupChild ) {
2609 QMouseEvent e( type,
2610 popupChild->mapFromGlobal(QPoint(gpos.x,gpos.y)),
2611 QPoint(gpos.x,gpos.y), button, state );
2612 QApplication::sendSpontaneousEvent( popupChild, &e );
2613 } else {
2614 QMouseEvent e( type, pos, QPoint(gpos.x,gpos.y), button, state );
2615 QApplication::sendSpontaneousEvent( popup, &e );
2616 }
2617
2618 if ( releaseAfter )
2619 qt_button_down = 0;
2620
2621 if ( type == QEvent::MouseButtonPress
2622 && qApp->activePopupWidget() != activePopupWidget
2623 && replayPopupMouseEvent ) {
2624 // the popup dissappeared. Replay the event
2625 QWidget* w = QApplication::widgetAt( gpos.x, gpos.y, TRUE );
2626 if ( w && !qt_blocked_modal( w ) ) {
2627 QPoint wpos = w->mapFromGlobal(QPoint(gpos.x, gpos.y));
2628 // flip y coordinate
2629 wpos.ry() = w->height() - (wpos.y() + 1);
2630 // Note: it's important to post this message rather than send:
2631 // QPushButton::popupPressed() depends on this so that
2632 // popup->exec() must return before this message is delivered
2633 // as QWidget::keyPressEvent().
2634 WinPostMsg( w->winId(), qmsg.msg,
2635 MPFROM2SHORT( wpos.x(), wpos.y() ), qmsg.mp2 );
2636 }
2637 }
2638 } else { // not popup mode
2639 if ( btnState == SinglePressed && QWidget::mouseGrabber() == 0 )
2640 setAutoCapture( winId() );
2641 else if ( btnState == AllReleased && QWidget::mouseGrabber() == 0 )
2642 releaseAutoCapture();
2643
2644 QWidget *widget = this;
2645 QWidget *w = QWidget::mouseGrabber();
2646 if ( !w )
2647 w = qt_button_down;
2648 if ( w && w != this ) {
2649 widget = w;
2650 pos = w->mapFromGlobal(QPoint(gpos.x, gpos.y));
2651 }
2652
2653 if ( type == QEvent::MouseButtonRelease &&
2654 (state & (~button) & ( MouseButtonMask )) == 0 ) {
2655 qt_button_down = 0;
2656 }
2657
2658 QMouseEvent e( type, pos, QPoint(gpos.x,gpos.y), button, state );
2659 QApplication::sendSpontaneousEvent( widget, &e );
2660
2661 if ( type != QEvent::MouseMove )
2662 pos.rx() = pos.ry() = -9999; // init for move compression
2663 }
2664 return TRUE;
2665}
2666
2667
2668//
2669// Keyboard event translation
2670//
2671
2672static const ushort KeyTbl[] = { // keyboard mapping table
2673 VK_ESC, Qt::Key_Escape, // misc keys
2674 VK_TAB, Qt::Key_Tab,
2675 VK_BACKTAB, Qt::Key_Backtab,
2676 VK_BACKSPACE, Qt::Key_Backspace,
2677 VK_ENTER, Qt::Key_Enter,
2678 VK_NEWLINE, Qt::Key_Return,
2679 VK_INSERT, Qt::Key_Insert,
2680 VK_DELETE, Qt::Key_Delete,
2681 VK_CLEAR, Qt::Key_Clear,
2682 VK_PAUSE, Qt::Key_Pause,
2683 VK_PRINTSCRN, Qt::Key_Print,
2684 VK_SPACE, Qt::Key_Space,
2685 VK_HOME, Qt::Key_Home, // cursor movement
2686 VK_END, Qt::Key_End,
2687 VK_LEFT, Qt::Key_Left,
2688 VK_UP, Qt::Key_Up,
2689 VK_RIGHT, Qt::Key_Right,
2690 VK_DOWN, Qt::Key_Down,
2691 VK_PAGEUP, Qt::Key_Prior,
2692 VK_PAGEDOWN, Qt::Key_Next,
2693 VK_SHIFT, Qt::Key_Shift, // modifiers
2694 VK_CTRL, Qt::Key_Control,
2695 VK_ALT, Qt::Key_Alt,
2696 VK_CAPSLOCK, Qt::Key_CapsLock,
2697 VK_NUMLOCK, Qt::Key_NumLock,
2698 VK_SCRLLOCK, Qt::Key_ScrollLock,
2699 0, 0
2700};
2701
2702// when the compatibility mode is FALSE Qt/OS2 uses the following rule
2703// to calculate QKeyEvent::key() codes when an alpha-numeric key is
2704// pressed: key code is the ASCII (Latin 1) character code of that key as if
2705// there were no any keyboard modifiers (CTRL, SHIFT, ALT) pressed, with the
2706// exception that alpha characters are uppercased.
2707// when the compatibility mode is TRUE Qt/OS2 behaves mostly like Qt/Win32.
2708Q_EXPORT bool qt_kbd_compatibility = TRUE;
2709
2710/// @todo (dmik) currentlly, qt_kbd_compatibility is TRUE because
2711// qt_scan2Ascii function below is not well implemented yet (in particular,
2712// it uses the 850 code page that may not be available on some systems...).
2713// Once we find a way to translate scans to US ASCII regardless of the current
2714// code page and/or NLS state (keyboard layout), qt_kbd_compatibility may be
2715// set to FALSE. This, in particular, will enable more correct handling of
2716// Alt+letter combinations when the keyboard is in the NLS state:
2717// QKeyEvent::key() will return a non-null Qt::Key_XXX code corresponding to
2718// the ASCII code of a pressed key, which in turn will let Qt process latin
2719// Alt+letter shortcuts in the NLS keyboard mode together with Alt+NLS_letter
2720// shortcuts (nice feature imho). Note that Alt+NLS_letter shortcuts are
2721// correctly processed in any case.
2722
2723// cache table to store Qt::Key_... values for 256 hardware scancodes
2724// (even byte is for non-shifted keys, odd byte is for shifted ones).
2725// used to decrease the number of calls to KbdXlate.
2726static uchar ScanTbl[512] = { 0xFF };
2727
2728static uchar qt_scan2Ascii( uchar scan, bool shift )
2729{
2730 uchar ascii = 0;
2731 HFILE kbd;
2732 ULONG dummy;
2733 DosOpen( "KBD$", &kbd, &dummy, 0,
2734 FILE_NORMAL, OPEN_ACTION_OPEN_IF_EXISTS,
2735 OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE, NULL );
2736 // parameter packet
2737 struct CPID {
2738 USHORT idCodePage;
2739 USHORT reserved;
2740 } cpid = { 850, 0 };
2741 ULONG szCpid = sizeof(CPID);
2742 // data packet
2743 KBDTRANS kt;
2744 ULONG szKt = sizeof(KBDTRANS);
2745 // reset all kbd states and modifiers
2746 memset( &kt, 0, szKt );
2747 // reflect Shift state to distinguish between [ and { etc.
2748 if ( qt_kbd_compatibility && shift )
2749 kt.fsState = KBDSTF_RIGHTSHIFT;
2750 kt.chScan = scan;
2751 DosDevIOCtl( kbd, IOCTL_KEYBOARD, KBD_XLATESCAN,
2752 &cpid, szCpid, &szCpid, &kt, szKt, &szKt );
2753 // store in cache
2754 uint idx = scan << 1;
2755 if ( qt_kbd_compatibility && shift )
2756 idx++;
2757 ascii = ScanTbl[idx] = toupper( kt.chChar );
2758 DosClose( kbd );
2759 return ascii;
2760}
2761
2762// translates WM_CHAR to Qt::Key_..., ascii, state and text
2763static void translateKeyCode( CHRMSG &chm, int &code, int &ascii, int &state,
2764 QString &text )
2765{
2766 if ( chm.fs & KC_SHIFT )
2767 state |= Qt::ShiftButton;
2768 if ( chm.fs & KC_CTRL )
2769 state |= Qt::ControlButton;
2770 if ( chm.fs & KC_ALT )
2771 state |= Qt::AltButton;
2772 if ( qt_extraKeyState & Qt::MetaButton )
2773 state |= Qt::MetaButton;
2774
2775 unsigned char ch = chm.chr;
2776
2777 if ( chm.fs & KC_VIRTUALKEY ) {
2778 if ( !chm.vkey ) {
2779 // The only known situation when KC_VIRTUALKEY is present but
2780 // vkey is zero is when Alt+Shift is pressed to switch the
2781 // keyboard layout state from latin to national and back.
2782 // It seems that this way the system informs applications about
2783 // layout changes: chm.chr is 0xF1 when the user switches
2784 // to the national layout (i.e. presses Alt + Left Shift)
2785 // and it is 0xF0 when he switches back (presses Alt + Right Shift).
2786 // We assume this and restore fs, vkey, scancode and chr accordingly.
2787 if ( chm.chr == 0xF0 || chm.chr == 0xF1 ) {
2788 chm.fs |= KC_ALT | KC_SHIFT;
2789 chm.vkey = VK_SHIFT;
2790 chm.scancode = chm.chr == 0xF1 ? 0x2A : 0x36;
2791 chm.chr = ch = 0;
2792 state |= Qt::AltButton | Qt::ShiftButton;
2793 // code will be assigned by the normal procedure below
2794 }
2795 }
2796 if ( chm.vkey >= VK_F1 && chm.vkey <= VK_F24 ) {
2797 // function keys
2798 code = Qt::Key_F1 + (chm.vkey - VK_F1);
2799 } else if ( chm.vkey == VK_ALTGRAF ) {
2800 code = Qt::Key_Alt;
2801 if ( !(chm.fs & KC_KEYUP) )
2802 qt_extraKeyState |= Qt::AltButton;
2803 else
2804 qt_extraKeyState &= ~Qt::AltButton;
2805 } else {
2806 // any other keys
2807 int i = 0;
2808 while ( KeyTbl[i] ) {
2809 if ( chm.vkey == (int)KeyTbl[i] ) {
2810 code = KeyTbl[i+1];
2811 break;
2812 }
2813 i += 2;
2814 }
2815 }
2816 } else {
2817 if ( qt_kbd_compatibility && ch && ch < 0x80 ) {
2818 code = toupper( ch );
2819 } else if ( !qt_kbd_compatibility && (chm.fs & KC_CHAR) && isalpha( ch ) ) {
2820 code = toupper( ch );
2821 } else {
2822 // detect some special keys that have a pseudo char code
2823 // in the high byte of chm.chr (probably this is less
2824 // device-dependent than scancode)
2825 switch ( chm.chr ) {
2826 case 0xEC00: // LWIN
2827 case 0xED00: // RWIN
2828 code = Qt::Key_Meta;
2829 if ( !(chm.fs & KC_KEYUP) )
2830 qt_extraKeyState |= Qt::MetaButton;
2831 else
2832 qt_extraKeyState &= ~Qt::MetaButton;
2833 break;
2834 case 0xEE00: // WINAPP (menu with arrow)
2835 code = Qt::Key_Menu;
2836 break;
2837 case 0x5600: // additional '\' (0x56 is actually its scancode)
2838 ch = state & Qt::ShiftButton ? '|' : '\\';
2839 if ( qt_kbd_compatibility ) code = ch;
2840 else code = '\\';
2841 break;
2842 default:
2843 // break if qt_kbd_compatibility = TRUE to avoid using
2844 // qt_scan2Ascii(), see comments to qt_kbd_compatibility
2845 if ( qt_kbd_compatibility ) break;
2846 // deduce Qt::Key... from scancode
2847 if ( ScanTbl[0] == 0xFF )
2848 memset( &ScanTbl, 0, sizeof(ScanTbl) );
2849 uint idx = chm.scancode << 1;
2850 if ( qt_kbd_compatibility && (state & Qt::ShiftButton) )
2851 idx++;
2852 code = ScanTbl[idx];
2853 if ( !code )
2854 // not found in cache
2855 code = qt_scan2Ascii( chm.scancode, (state & Qt::ShiftButton) );
2856 break;
2857 }
2858 }
2859 }
2860 // check extraState AFTER updating it
2861 if ( qt_extraKeyState & Qt::AltButton )
2862 state |= Qt::AltButton;
2863
2864 // detect numeric keypad keys
2865 if ( chm.vkey == VK_ENTER || chm.vkey == VK_NUMLOCK ) {
2866 // these always come from the numpad
2867 state |= Qt::Keypad;
2868 } else if (
2869 ((chm.vkey >= VK_PAGEUP && chm.vkey <= VK_DOWN) ||
2870 chm.vkey == VK_INSERT || chm.vkey == VK_DELETE)
2871 ) {
2872 if ( ch != 0xE0 ) {
2873 state |= Qt::Keypad;
2874 if ( (state & Qt::AltButton) && chm.vkey != VK_DELETE ) {
2875 // reset both code and ch to "hide" them from Qt widgets and let
2876 // the standard OS/2 Alt+ddd shortcut (that composed chars from
2877 // typed in ASCII codes) work correctly. If we don't do that,
2878 // widgets will see both individual digits (or cursor movements
2879 // if NumLock is off) and the char composed by Alt+ddd.
2880 code = ch = 0;
2881 } else {
2882 if ( ch ) {
2883 // override code to make it Qt::Key_0..Qt::Key_9 etc.
2884 code = toupper( ch );
2885 }
2886 }
2887 } else {
2888 ch = 0;
2889 }
2890 }
2891 // detect other numpad keys. OS/2 doesn't assign virtual keys to them
2892 // so use scancodes (it can be device-dependent, is there a better way?)
2893 switch ( chm.scancode ) {
2894 case 0x4C: // 5
2895 state |= Qt::Keypad;
2896 if ( state & Qt::AltButton ) {
2897 // reset both code and ch to "hide" them from Qt (see above)
2898 code = ch = 0;
2899 } else {
2900 // scancode is zero if Numlock is set
2901 if ( !code ) code = Qt::Key_Clear;
2902 }
2903 break;
2904 case 0x37: // *
2905 // OS/2 assigns VK_PRINTSCRN to it when pressed with Shift, also
2906 // it sets chr to zero when it is released with Alt or Ctrl
2907 // leaving vkey as zero too, and does few other strange things --
2908 // override them all
2909 code = Qt::Key_Asterisk;
2910 state |= Qt::Keypad;
2911 break;
2912 case 0x5C: // /
2913 code = Qt::Key_Slash;
2914 // fall through
2915 case 0x4A: // -
2916 case 0x4E: // +
2917 // the code for the above two is obtained by KbdXlate above
2918 state |= Qt::Keypad;
2919 break;
2920 }
2921
2922 if ( (state & Qt::ControlButton) && !(state & Qt::Keypad) ) {
2923 if ( !(state & Qt::AltButton) ) {
2924 unsigned char cch = toupper( ch ), newCh = 0;
2925 // Ctrl + A..Z etc. produce ascii from 0x01 to 0x1F
2926 if ( cch >= 0x41 && cch <= 0x5F ) newCh = cch - 0x40;
2927 // the below emulates OS/2 functionality. It differs from
2928 // Win32 one.
2929 else if ( cch == 0x36 && !(state & Qt::Keypad) ) newCh = 0x1E;
2930 else if ( cch == 0x2D ) newCh = 0x1F;
2931 else if ( cch >= 0x7B && cch <= 0x7D ) newCh = cch - 0x60;
2932 if ( newCh )
2933 ch = newCh;
2934 }
2935 }
2936
2937 ascii = ch;
2938 if ( ascii > 0x7F ) ascii = 0;
2939 if ( ch )
2940 text = QString::fromLocal8Bit( (char*)&ch, 1 );
2941}
2942
2943struct KeyRec {
2944 KeyRec(unsigned char s, int c, int a, const QString& t) :
2945 scan(s), code(c), ascii(a), text(t) { }
2946 KeyRec() { }
2947 unsigned char scan;
2948 int code, ascii;
2949 QString text;
2950};
2951
2952static const int maxrecs=64; // User has LOTS of fingers...
2953static KeyRec key_rec[maxrecs];
2954static int nrecs=0;
2955
2956static KeyRec* find_key_rec( unsigned char scan, bool remove )
2957{
2958 KeyRec *result = 0;
2959 for (int i=0; i<nrecs; i++) {
2960 if (key_rec[i].scan == scan) {
2961 if (remove) {
2962 static KeyRec tmp;
2963 tmp = key_rec[i];
2964 while (i+1 < nrecs) {
2965 key_rec[i] = key_rec[i+1];
2966 i++;
2967 }
2968 nrecs--;
2969 result = &tmp;
2970 } else {
2971 result = &key_rec[i];
2972 }
2973 break;
2974 }
2975 }
2976 return result;
2977}
2978
2979static KeyRec* find_key_rec( int code, bool remove )
2980{
2981 KeyRec *result = 0;
2982 for (int i=0; i<nrecs; i++) {
2983 if (key_rec[i].code == code) {
2984 if (remove) {
2985 static KeyRec tmp;
2986 tmp = key_rec[i];
2987 while (i+1 < nrecs) {
2988 key_rec[i] = key_rec[i+1];
2989 i++;
2990 }
2991 nrecs--;
2992 result = &tmp;
2993 } else {
2994 result = &key_rec[i];
2995 }
2996 break;
2997 }
2998 }
2999 return result;
3000}
3001
3002static void store_key_rec( unsigned char scan, int code, int ascii,
3003 const QString& text )
3004{
3005 if ( nrecs == maxrecs ) {
3006#if defined(QT_CHECK_RANGE)
3007 qWarning( "Qt: Internal keyboard buffer overflow" );
3008#endif
3009 return;
3010 }
3011
3012 key_rec[nrecs++] = KeyRec( scan, code, ascii, text );
3013}
3014
3015bool QETWidget::translateKeyEvent( const QMSG &qmsg, bool grab )
3016{
3017 CHRMSG chm = *((PCHRMSG)(((char*)&qmsg) + sizeof(HWND) + sizeof(ULONG)));
3018
3019#if 0
3020 qDebug( "WM_CHAR: [%s] fs: %04X cRepeat: %03d scancode: %02X chr: %04X vkey: %04X %s",
3021 name(), chm.fs, chm.cRepeat, chm.scancode, chm.chr, chm.vkey, (grab ? "{grab}" : "") );
3022#endif
3023
3024 bool k0 = FALSE, k1 = FALSE;
3025 int code = 0, ascii = 0, state = 0;
3026 QString text;
3027
3028 if ( sm_blockUserInput ) // block user interaction during session management
3029 return TRUE;
3030
3031 translateKeyCode( chm, code, ascii, state, text );
3032/// @todo (dmik) currently WM_CHARs chars with zero virtual code or zero
3033// scancode are totally ignored. -- are they?
3034// if ( !code || !chm.scancode ) return FALSE;
3035
3036 // Invert state logic
3037 if ( code == Key_Alt )
3038 state = state ^ AltButton;
3039 else if ( code == Key_Control )
3040 state = state ^ ControlButton;
3041 else if ( code == Key_Shift )
3042 state = state ^ ShiftButton;
3043
3044 if ( !(chm.fs & KC_KEYUP) ) {
3045 // KEYDOWN
3046 KeyRec* rec = find_key_rec( chm.scancode, FALSE );
3047
3048 if ( state == Qt::AltButton ) {
3049 // Special handling of global PM hotkeys
3050 switch ( code ) {
3051 case Qt::Key_Space:
3052 if ( qt_show_system_menu( topLevelWidget() ) ) {
3053 // remove the Key_Alt from the buffer (otherwise we will
3054 // not get the next "Alt pressed" event because the
3055 // "Alt depressed" event, that must preceed it, will be
3056 // eaten by the system)
3057 find_key_rec( Qt::Key_Alt, TRUE );
3058/// @todo (dmik) do the same for other global keys (ALT+TAB, ALT+ESC, CTRL+ESC)
3059// by handling this situation when we obtain/loose focus)
3060/// @todo (dmik) update: I don't actually think the above should be done, because
3061// it will not solve the problem of stuck modifier keys in general (there may be
3062// other combinations stolen by the system or other apps). More over, I guess
3063// that find_key_rec() above should also be removed to get identical behavior for
3064// all stolen keys. This will allow to solve the problem on the Qt application
3065// level if needed (and even in a platform-independent manner).
3066 }
3067 return TRUE;
3068 case Qt::Key_F4:
3069 // we handle this key combination ourselves because not
3070 // all top-level widgets have the system menu
3071 WinPostMsg( topLevelWidget()->winFId(), WM_CLOSE, 0, 0 );
3072 // see the comment above
3073 find_key_rec( Qt::Key_Alt, TRUE );
3074 return TRUE;
3075 default:
3076 break;
3077 }
3078 }
3079
3080 if ( rec ) {
3081 // it is already down (so it is auto-repeating)
3082 if ( rec->code < Key_Shift || rec->code > Key_ScrollLock ) {
3083 k0 = sendKeyEvent( QEvent::KeyRelease, rec->code, rec->ascii,
3084 state, grab, rec->text, TRUE );
3085 k1 = sendKeyEvent( QEvent::KeyPress, rec->code, rec->ascii,
3086 state, grab, rec->text, TRUE );
3087 }
3088 } else {
3089 // map shift+tab to shift+backtab, QAccel knows about it
3090 // and will handle it
3091 if ( code == Key_Tab && ( state & ShiftButton ) == ShiftButton )
3092 code = Key_BackTab;
3093 store_key_rec( chm.scancode, code, ascii, text );
3094 k0 = sendKeyEvent( QEvent::KeyPress, code, ascii,
3095 state, grab, text );
3096 }
3097 } else {
3098 // KEYUP
3099 KeyRec* rec = find_key_rec( chm.scancode, TRUE );
3100 if ( !rec ) {
3101 // Someone ate the key down event
3102 } else {
3103 k0 = sendKeyEvent( QEvent::KeyRelease, rec->code, rec->ascii,
3104 state, grab, rec->text );
3105
3106 // keyboard context menu event
3107 if ( rec->code == Key_Menu && !state )
3108 WinPostMsg( qmsg.hwnd, WM_CONTEXTMENU, 0, MPFROM2SHORT( 0, 1 ) );
3109 }
3110 }
3111
3112#if 0
3113 qDebug("WM_CHAR: RESULT = %d", (k0 || k1));
3114#endif
3115 return k0 || k1;
3116}
3117
3118#ifndef QT_NO_WHEELEVENT
3119bool QETWidget::translateWheelEvent( const QMSG &qmsg )
3120{
3121 enum { WHEEL_DELTA = 120 };
3122
3123 if ( sm_blockUserInput ) // block user interaction during session management
3124 return TRUE;
3125
3126 // consume duplicate wheel events sent by the AMouse driver to emulate
3127 // multiline scrolls. we need this since currently Qt (QScrollBar, for
3128 // instance) maintains the number of lines to scroll per wheel rotation
3129 // (including the special handling of CTRL and SHIFT modifiers) on its own
3130 // and doesn't have a setting to tell it to be aware of system settings
3131 // for the mouse wheel. if we had processed events as they are, we would
3132 // get a confusing behavior (too many lines scrolled etc.).
3133 {
3134 int devh = QApplication::desktop()->height();
3135 QMSG wheelMsg;
3136 while (
3137 WinPeekMsg( 0, &wheelMsg, qmsg.hwnd, qmsg.msg, qmsg.msg, PM_NOREMOVE )
3138 ) {
3139 // PM bug: ptl contains SHORT coordinates although fields are LONG
3140 wheelMsg.ptl.x = (short) wheelMsg.ptl.x;
3141 wheelMsg.ptl.y = (short) wheelMsg.ptl.y;
3142 // flip y coordinate
3143 wheelMsg.ptl.y = devh - (wheelMsg.ptl.y + 1);
3144 if (
3145 wheelMsg.mp1 != qmsg.mp1 ||
3146 wheelMsg.mp2 != qmsg.mp2 ||
3147 wheelMsg.ptl.x != qmsg.ptl.x ||
3148 wheelMsg.ptl.y != qmsg.ptl.y
3149 )
3150 break;
3151 WinPeekMsg( 0, &wheelMsg, qmsg.hwnd, qmsg.msg, qmsg.msg, PM_REMOVE );
3152 }
3153 }
3154
3155 int delta;
3156 USHORT cmd = SHORT2FROMMP(qmsg.mp2);
3157 switch ( cmd ) {
3158 case SB_LINEUP:
3159 case SB_PAGEUP:
3160 delta = WHEEL_DELTA;
3161 break;
3162 case SB_LINEDOWN:
3163 case SB_PAGEDOWN:
3164 delta = -WHEEL_DELTA;
3165 break;
3166 default:
3167 return FALSE;
3168 }
3169
3170 int state = 0;
3171 if ( WinGetKeyState( HWND_DESKTOP, VK_SHIFT ) & 0x8000 )
3172 state |= ShiftButton;
3173 if ( WinGetKeyState( HWND_DESKTOP, VK_ALT ) & 0x8000 ||
3174 (qt_extraKeyState & Qt::AltButton)
3175 )
3176 state |= AltButton;
3177 if ( WinGetKeyState( HWND_DESKTOP, VK_CTRL ) & 0x8000 )
3178 state |= ControlButton;
3179 if ( qt_extraKeyState & Qt::MetaButton )
3180 state |= MetaButton;
3181
3182 Orientation orient;
3183 // Alt inverts scroll orientation (Qt/Win32 behavior)
3184 if ( state & AltButton )
3185 orient = qmsg.msg == WM_VSCROLL ? Horizontal : Vertical;
3186 else
3187 orient = qmsg.msg == WM_VSCROLL ? Vertical : Horizontal;
3188
3189 QPoint globalPos (qmsg.ptl.x, qmsg.ptl.y);
3190
3191 // if there is a widget under the mouse and it is not shadowed
3192 // by modality, we send the event to it first
3193 int ret = 0;
3194 QWidget* w = QApplication::widgetAt( globalPos, TRUE );
3195 if ( !w || !qt_try_modal( w, (QMSG*)&qmsg, ret ) )
3196 w = this;
3197
3198 // send the event to the widget or its ancestors
3199 {
3200 QWidget* popup = qApp->activePopupWidget();
3201 if ( popup && w->topLevelWidget() != popup )
3202 popup->close();
3203 QWheelEvent e( w->mapFromGlobal( globalPos ), globalPos, delta, state, orient );
3204 if ( QApplication::sendSpontaneousEvent( w, &e ) )
3205 return TRUE;
3206 }
3207
3208 // send the event to the widget that has the focus or its ancestors, if different
3209 if ( w != qApp->focusWidget() && ( w = qApp->focusWidget() ) ) {
3210 QWidget* popup = qApp->activePopupWidget();
3211 if ( popup && w->topLevelWidget() != popup )
3212 popup->close();
3213 QWheelEvent e( w->mapFromGlobal( globalPos ), globalPos, delta, state, orient );
3214 if ( QApplication::sendSpontaneousEvent( w, &e ) )
3215 return TRUE;
3216 }
3217 return FALSE;
3218}
3219#endif
3220
3221static bool isModifierKey(int code)
3222{
3223 return code >= Qt::Key_Shift && code <= Qt::Key_ScrollLock;
3224}
3225
3226bool QETWidget::sendKeyEvent( QEvent::Type type, int code, int ascii,
3227 int state, bool grab, const QString& text,
3228 bool autor )
3229{
3230 if ( type == QEvent::KeyPress && !grab ) {
3231 // send accel events if the keyboard is not grabbed
3232 QKeyEvent a( type, code, ascii, state, text, autor, QMAX(1, int(text.length())) );
3233 if ( qt_tryAccelEvent( this, &a ) )
3234 return TRUE;
3235 }
3236 if ( !isEnabled() )
3237 return FALSE;
3238 QKeyEvent e( type, code, ascii, state, text, autor, QMAX(1, int(text.length())) );
3239 QApplication::sendSpontaneousEvent( this, &e );
3240 if ( !isModifierKey(code) && state == Qt::AltButton
3241 && ((code>=Key_A && code<=Key_Z) || (code>=Key_0 && code<=Key_9))
3242 && type == QEvent::KeyPress && !e.isAccepted() )
3243 QApplication::beep(); // emulate PM behavior
3244 return e.isAccepted();
3245}
3246
3247
3248//
3249// Paint event translation
3250//
3251bool QETWidget::translatePaintEvent( const QMSG & )
3252{
3253 HPS displayPS = qt_display_ps();
3254
3255#if !defined (QT_PM_NO_WIDGETMASK)
3256 // Since we don't use WS_CLIPSIBLINGS and WS_CLIPCHILDREN bits (see
3257 // qwidget_pm.cpp), we have to validate areas that intersect with our
3258 // children and siblings, taking their clip regions into account.
3259 validateObstacles();
3260#endif
3261
3262 HRGN hrgn = GpiCreateRegion( displayPS, 0, NULL );
3263 LONG rc = WinQueryUpdateRegion( winId(), hrgn );
3264 if ( rc == RGN_ERROR ) {
3265 GpiDestroyRegion( displayPS, hrgn );
3266 hps = 0;
3267 clearWState( WState_InPaintEvent );
3268 return FALSE;
3269 }
3270
3271 setWState( WState_InPaintEvent );
3272 RECTL rcl;
3273 hps = WinBeginPaint( winId(), 0, &rcl );
3274
3275 // convert to width and height
3276 rcl.xRight -= rcl.xLeft;
3277 rcl.yTop -= rcl.yBottom;
3278
3279 // it's possible that the update rectangle is empty
3280 if ( !rcl.xRight || !rcl.yTop ) {
3281 WinEndPaint( hps );
3282 GpiDestroyRegion( displayPS, hrgn );
3283 hps = 0;
3284 clearWState( WState_InPaintEvent );
3285 return TRUE;
3286 }
3287
3288#if !defined (QT_PM_NO_WIDGETMASK)
3289 if ( WinQueryClipRegion( winId(), 0 ) != QCRGN_NO_CLIP_REGION ) {
3290 // Correct the update region by intersecting it with the clip
3291 // region (PM doesn't do that itself). It is necessary
3292 // to have a correct QRegion in QPaintEvent.
3293 HRGN hcrgn = GpiCreateRegion( displayPS, 0, NULL );
3294 WinQueryClipRegion( winId(), hcrgn );
3295 GpiCombineRegion( displayPS, hrgn, hrgn, hcrgn, CRGN_AND );
3296 GpiDestroyRegion( displayPS, hcrgn );
3297 }
3298#endif
3299
3300 // flip y coordinate
3301 rcl.yBottom = height() - (rcl.yBottom + rcl.yTop);
3302
3303 // erase background
3304#if !defined (DEBUG_REPAINTRESIZE)
3305 bool erase = !( testWFlags( WRepaintNoErase ) );
3306#else
3307 // Some oldish Qt widgets think that if they specify WRepaintNoErase but
3308 // not WResizeNoErase, the background should still be erased for them
3309 // in *repaint* events. The code below is left to debug these widgets
3310 // (to ensure this is the exact cause of repaint problems)
3311 bool erase = testWFlags( WRepaintNoErase | WResizeNoErase ) != WRepaintNoErase | WResizeNoErase;
3312#endif
3313 if ( erase )
3314 this->erase( rcl.xLeft, rcl.yBottom,
3315 rcl.xRight, rcl.yTop );
3316
3317#if defined (DEBUG_REPAINTRESIZE)
3318 qDebug( "WM_PAINT: [%s/%s/%08X] %ld,%ld; %ld,%ld erase: %d",
3319 name(), className(), widget_flags,
3320 rcl.xLeft, rcl.yBottom, rcl.xRight, rcl.yTop, erase );
3321#endif
3322
3323 // create a region that will take ownership of hrgn
3324 QRegion rgn( hrgn, height() );
3325
3326 QPaintEvent e( rgn, QRect( rcl.xLeft, rcl.yBottom, rcl.xRight, rcl.yTop ),
3327 erase );
3328 QApplication::sendSpontaneousEvent( this, (QEvent*) &e );
3329
3330 WinEndPaint( hps );
3331 hps = 0;
3332 clearWState( WState_InPaintEvent );
3333 return TRUE;
3334}
3335
3336//
3337// Window move and resize (configure) events
3338//
3339
3340bool QETWidget::translateConfigEvent( const QMSG &qmsg )
3341{
3342 if ( !testWState(WState_Created) ) // in QWidget::create()
3343 return TRUE;
3344
3345 WId fId = winFId();
3346 ULONG fStyle = WinQueryWindowULong( fId, QWL_STYLE );
3347 if ( testWState( WState_ConfigPending ) ) {
3348 // it's possible that we're trying to set the frame size smaller
3349 // than it possible for WC_FRAME in QWidget::internalSetGeometry().
3350 // here we correct this (crect there is set before WinSetWindowPos()
3351 // that sends WM_SIZE).
3352 QSize newSize( SHORT1FROMMP(qmsg.mp2), SHORT2FROMMP(qmsg.mp2) );
3353 if ( qmsg.msg == WM_SIZE && size() != newSize ) {
3354 crect.setSize( newSize );
3355 }
3356 return TRUE;
3357 }
3358 setWState( WState_ConfigPending ); // set config flag
3359 QRect cr = geometry();
3360 if ( qmsg.msg == WM_SIZE ) { // resize event
3361 QSize oldSize = size();
3362 QSize newSize( SHORT1FROMMP(qmsg.mp2), SHORT2FROMMP(qmsg.mp2) );
3363 cr.setSize( newSize );
3364 crect = cr;
3365 if ( isTopLevel() ) { // update caption/icon text
3366 createTLExtra();
3367 QString txt;
3368 if ( (fStyle & WS_MAXIMIZED) && !!iconText() )
3369 txt = iconText();
3370 else
3371 if ( !caption().isNull() )
3372 txt = caption();
3373
3374 if ( !!txt ) {
3375 WinSetWindowText( fId, txt.local8Bit() );
3376 }
3377 }
3378 if ( oldSize != newSize) {
3379#if !defined (QT_PM_NO_WIDGETMASK)
3380 // Spontaneous (external to Qt) WM_SIZE messages should occur only
3381 // on top-level widgets. If we get them for a non top-level widget,
3382 // the result will most likely be incorrect because widget masks will
3383 // not be properly processed (i.e. in the way it is done in
3384 // QWidget::internalSetGeometry() when the geometry is changed from
3385 // within Qt). So far, I see no need to support this (who will ever
3386 // need to move a non top-level window of a foreign process?).
3387 Q_ASSERT( isTopLevel() );
3388#endif
3389 if ( isVisible() ) {
3390 QResizeEvent e( newSize, oldSize );
3391 QApplication::sendSpontaneousEvent( this, &e );
3392 if ( !testWFlags( WStaticContents ) )
3393 repaint( !testWFlags(WResizeNoErase) );
3394 } else {
3395 QResizeEvent *e = new QResizeEvent( newSize, oldSize );
3396 QApplication::postEvent( this, e );
3397 }
3398 }
3399 } else if ( qmsg.msg == WM_MOVE ) { // move event
3400 QPoint oldPos = geometry().topLeft();
3401 SWP swp;
3402 if ( isTopLevel() ) {
3403 WinQueryWindowPos( fId, &swp );
3404 // flip y coordinate
3405 swp.y = QApplication::desktop()->height() - ( swp.y + swp.cy );
3406 QTLWExtra *top = topData();
3407 swp.x += top->fleft;
3408 swp.y += top->ftop;
3409 } else {
3410 WinQueryWindowPos( winId(), &swp );
3411 // flip y coordinate
3412 swp.y = parentWidget()->height() - ( swp.y + swp.cy );
3413 }
3414 QPoint newCPos( swp.x, swp.y );
3415 if ( newCPos != oldPos ) {
3416 cr.moveTopLeft( newCPos );
3417 crect = cr;
3418 if ( isVisible() ) {
3419 QMoveEvent e( newCPos, oldPos ); // cpos (client position)
3420 QApplication::sendSpontaneousEvent( this, &e );
3421 } else {
3422 QMoveEvent * e = new QMoveEvent( newCPos, oldPos );
3423 QApplication::postEvent( this, e );
3424 }
3425 }
3426 }
3427 clearWState( WState_ConfigPending ); // clear config flag
3428 return TRUE;
3429}
3430
3431
3432//
3433// Close window event translation.
3434//
3435// This class is a friend of QApplication because it needs to emit the
3436// lastWindowClosed() signal when the last top level widget is closed.
3437//
3438
3439bool QETWidget::translateCloseEvent( const QMSG & )
3440{
3441 return close(FALSE);
3442}
3443
3444void QApplication::setCursorFlashTime( int msecs )
3445{
3446 WinSetSysValue( HWND_DESKTOP, SV_CURSORRATE, msecs / 2 );
3447 cursor_flash_time = msecs;
3448}
3449
3450int QApplication::cursorFlashTime()
3451{
3452 int blink = (int) WinQuerySysValue( HWND_DESKTOP, SV_CURSORRATE );
3453 if ( !blink )
3454 return cursor_flash_time;
3455 if (blink > 0)
3456 return 2*blink;
3457 return 0;
3458}
3459
3460void QApplication::setDoubleClickInterval( int ms )
3461{
3462 WinSetSysValue( HWND_DESKTOP, SV_DBLCLKTIME, ms );
3463 mouse_double_click_time = ms;
3464}
3465
3466
3467int QApplication::doubleClickInterval()
3468{
3469 int ms = (int) WinQuerySysValue( HWND_DESKTOP, SV_DBLCLKTIME );
3470 if ( ms != 0 )
3471 return ms;
3472 return mouse_double_click_time;
3473}
3474
3475void QApplication::setWheelScrollLines( int n )
3476{
3477 wheel_scroll_lines = n;
3478}
3479
3480int QApplication::wheelScrollLines()
3481{
3482 return wheel_scroll_lines;
3483}
3484
3485void QApplication::setEffectEnabled( Qt::UIEffect effect, bool enable )
3486{
3487#ifndef QT_NO_EFFECTS
3488 switch (effect) {
3489 case UI_AnimateMenu:
3490 if ( enable ) fade_menu = FALSE;
3491 animate_menu = enable;
3492 break;
3493 case UI_FadeMenu:
3494 if ( enable )
3495 animate_menu = TRUE;
3496 fade_menu = enable;
3497 break;
3498 case UI_AnimateCombo:
3499 animate_combo = enable;
3500 break;
3501 case UI_AnimateTooltip:
3502 if ( enable ) fade_tooltip = FALSE;
3503 animate_tooltip = enable;
3504 break;
3505 case UI_FadeTooltip:
3506 if ( enable )
3507 animate_tooltip = TRUE;
3508 fade_tooltip = enable;
3509 break;
3510 case UI_AnimateToolBox:
3511 animate_toolbox = enable;
3512 break;
3513 default:
3514 animate_ui = enable;
3515 break;
3516 }
3517#endif
3518}
3519
3520bool QApplication::isEffectEnabled( Qt::UIEffect effect )
3521{
3522#ifndef QT_NO_EFFECTS
3523 if ( QColor::numBitPlanes() < 16 || !animate_ui )
3524 return FALSE;
3525
3526 switch( effect ) {
3527 case UI_AnimateMenu:
3528 return animate_menu;
3529 case UI_FadeMenu:
3530 return fade_menu;
3531 case UI_AnimateCombo:
3532 return animate_combo;
3533 case UI_AnimateTooltip:
3534 return animate_tooltip;
3535 case UI_FadeTooltip:
3536 return fade_tooltip;
3537 case UI_AnimateToolBox:
3538 return animate_toolbox;
3539 default:
3540 return animate_ui;
3541 }
3542#else
3543 return FALSE;
3544#endif
3545}
3546
3547void QApplication::flush()
3548{
3549}
3550
3551#if !defined (QT_NO_SESSIONMANAGER)
3552
3553bool qt_app_canQuit()
3554{
3555#if defined (DEBUG_SESSIONMANAGER)
3556 qDebug( "qt_app_canQuit(): sm_smActive=%d qt_about_to_destroy_wnd=%d "
3557 "sm_gracefulShutdown=%d sm_cancel=%d",
3558 sm_smActive, qt_about_to_destroy_wnd,
3559 sm_gracefulShutdown, sm_cancel );
3560#endif
3561
3562 BOOL answer = FALSE;
3563
3564 // We can get multiple WM_QUIT messages while the "session termination
3565 // procedure" (i.e. the QApplication::commitData() call) is still in
3566 // progress. Ignore them.
3567 if ( !sm_smActive ) {
3568 if ( sm_gracefulShutdown ) {
3569 // this is WM_QUIT after WM_SAVEAPPLICATION (either posted by the OS
3570 // or by ourselves), confirm the quit depending on what the user wants
3571 sm_quitSkipped = FALSE;
3572 answer = !sm_cancel;
3573 if ( sm_cancel ) {
3574 // the shutdown has been canceled, reset the flag to let the
3575 // graceful shutdown happen again later
3576 sm_gracefulShutdown = FALSE;
3577 }
3578 } else {
3579 // sm_gracefulShutdown is FALSE, so allowsInteraction() and friends
3580 // will return FALSE during commitData() (assuming that WM_QUIT w/o
3581 // WM_SAVEAPPLICATION is an emergency termination)
3582 sm_smActive = TRUE;
3583 sm_blockUserInput = TRUE; // prevent user-interaction outside interaction windows
3584 sm_cancel = FALSE;
3585 if ( qt_session_manager_self )
3586 qApp->commitData( *qt_session_manager_self );
3587 sm_smActive = FALSE;
3588 answer = TRUE; // ignore sm_cancel
3589 }
3590 } else {
3591 // if this is a WM_QUIT received during WM_SAVEAPPLICATION handling,
3592 // remember we've skipped (refused) it
3593 if ( sm_gracefulShutdown )
3594 sm_quitSkipped = TRUE;
3595 }
3596
3597#if defined (DEBUG_SESSIONMANAGER)
3598 qDebug( "qt_app_canQuit(): answer=%ld", answer );
3599#endif
3600
3601 return answer;
3602}
3603
3604bool QSessionManager::allowsInteraction()
3605{
3606 // Allow interation only when the system is being normally shutdown
3607 // and informs us using WM_SAVEAPPLICATION. When we receive WM_QUIT directly
3608 // (so sm_gracefulShutdown is FALSE), interaction is disallowed.
3609 if ( sm_smActive && sm_gracefulShutdown ) {
3610 sm_blockUserInput = FALSE;
3611 return TRUE;
3612 }
3613
3614 return FALSE;
3615}
3616
3617bool QSessionManager::allowsErrorInteraction()
3618{
3619 // Allow interation only when the system is being normally shutdown
3620 // and informs us using WM_SAVEAPPLICATION. When we receive WM_QUIT directly
3621 // (so sm_gracefulShutdown is FALSE), interaction is disallowed.
3622 if ( sm_smActive && sm_gracefulShutdown ) {
3623 sm_blockUserInput = FALSE;
3624 return TRUE;
3625 }
3626
3627 return FALSE;
3628}
3629
3630void QSessionManager::release()
3631{
3632 if ( sm_smActive && sm_gracefulShutdown )
3633 sm_blockUserInput = TRUE;
3634}
3635
3636void QSessionManager::cancel()
3637{
3638 if ( sm_smActive && sm_gracefulShutdown )
3639 sm_cancel = TRUE;
3640}
3641
3642#endif
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