summaryrefslogtreecommitdiffstats
path: root/nsplugins/viewer/kxt.cpp
blob: e2ab625eddd5a0cd3c3531ad4a44873273ed9b1f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
/*

  kxt.cpp  -  Xt enabled Qt classed (derived from Qt Extension QXt)

  Copyright (c) 2000,2001 Stefan Schimanski <1Stein@gmx.de>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

*/

/****************************************************************************
**
** Implementation of Qt extension classes for Xt/Motif support.
**
** Created : 980107
**
** Copyright (C) 1992-2000 Troll Tech AS.  All rights reserved.
**
** This file is part of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Troll Tech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** Licensees holding valid Qt Professional Edition licenses may use this
** file in accordance with the Qt Professional Edition License Agreement
** provided with the Qt Professional Edition.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about the Professional Edition licensing, or see
** http://www.trolltech.com/qpl/ for QPL licensing information.
**
*****************************************************************************/

#include <tqglobal.h>
#if TQT_VERSION < 0x030100

#include <tdeapplication.h>
#include <tqwidget.h>
#include <tqobjectlist.h>
#include <tqwidgetlist.h>
#include <kdebug.h>
#include <tqtimer.h>

#include "kxt.h"

#include <stdio.h>
#include <string.h>
#include <time.h>
#include <limits.h>

#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/IntrinsicP.h> // for XtCreateWindow
#include <X11/Shell.h>
#include <X11/StringDefs.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>

const int XKeyPress = KeyPress;
const int XKeyRelease = KeyRelease;
#undef KeyPress
#undef KeyRelease

extern Atom tqt_wm_state;

//#define HAVE_MOTIF
#ifdef HAVE_MOTIF
#include <Xm/Xm.h>
#endif

typedef void (*SameAsXtTimerCallbackProc)(void*,void*);
typedef void (*IntervalSetter)(int);
typedef void (*ForeignEventProc)(XEvent*);

extern XtEventDispatchProc
 qt_np_cascade_event_handler[LASTEvent];      // defined in qnpsupport.cpp
void            qt_reset_color_avail();       // defined in qcolor_x11.cpp
int             qt_activate_timers();         // defined in qapplication_x11.cpp
timeval        *qt_wait_timer();              // defined in qapplication_x11.cpp
void            qt_x11SendPostedEvents();     // defined in qapplication_x11.cpp
int     qt_event_handler( XEvent* event );    // defined in qnpsupport.cpp
extern int      qt_np_count;                  // defined in qnpsupport.cpp
void qt_np_timeout( void* p, void* id );      // defined in qnpsupport.cpp
void qt_np_add_timeoutcb(
        SameAsXtTimerCallbackProc cb );       // defined in qnpsupport.cpp
void qt_np_remove_timeoutcb(
        SameAsXtTimerCallbackProc cb );       // defined in qnpsupport.cpp
void qt_np_add_timer_setter(
        IntervalSetter is );                  // defined in qnpsupport.cpp
void qt_np_remove_timer_setter(
        IntervalSetter is );                  // defined in qnpsupport.cpp
extern XtIntervalId qt_np_timerid;            // defined in qnpsupport.cpp
extern void (*qt_np_leave_cb)
              (XLeaveWindowEvent*);           // defined in qnpsupport.cpp
void qt_np_add_event_proc(
            ForeignEventProc fep );           // defined in qnpsupport.cpp
void qt_np_remove_event_proc(
            ForeignEventProc fep );           // defined in qnpsupport.cpp


typedef struct {
    int empty;
} QWidgetClassPart;

typedef struct _QWidgetClassRec {
    CoreClassPart       core_class;
    QWidgetClassPart    qwidget_class;
} QWidgetClassRec;

//static QWidgetClassRec qwidgetClassRec;

typedef struct {
    /* resources */
    /* (none) */
    /* private state */
    KXtWidget* qxtwidget;
} QWidgetPart;

typedef struct _QWidgetRec {
    CorePart    core;
    QWidgetPart qwidget;
} QWidgetRec;


static
void reparentChildrenOf(TQWidget* parent)
{

    if ( !parent->children() )
        return; // nothing to do

    for ( TQObjectListIt it( *parent->children() ); it.current(); ++it ) {
        if ( it.current()->isWidgetType() ) {
            TQWidget* widget = (TQWidget*)it.current();
            XReparentWindow( tqt_xdisplay(),
                             widget->winId(),
                             parent->winId(),
                             widget->x(),
                             widget->y() );
            if ( widget->isVisible() )
                XMapWindow( tqt_xdisplay(), widget->winId() );
        }
    }

}

void qwidget_realize(
        Widget                widget,
        XtValueMask*          mask,
        XSetWindowAttributes* attributes
    )
{
    widgetClassRec.core_class.realize(widget, mask, attributes);
    KXtWidget* qxtw = ((QWidgetRec*)widget)->qwidget.qxtwidget;
    if (XtWindow(widget) != qxtw->winId()) {
        qxtw->create(XtWindow(widget), FALSE, FALSE);
        reparentChildrenOf(qxtw);
    }
    qxtw->show();
    XMapWindow( tqt_xdisplay(), qxtw->winId() );
}

static
QWidgetClassRec qwidgetClassRec = {
  { /* core fields */
    /* superclass               */      (WidgetClass) &widgetClassRec,
    /* class_name               */      (char*)TQWIDGET_OBJECT_NAME_STRING,
    /* widget_size              */      sizeof(QWidgetRec),
    /* class_initialize         */      0,
    /* class_part_initialize    */      0,
    /* class_inited             */      FALSE,
    /* initialize               */      0,
    /* initialize_hook          */      0,
    /* realize                  */      qwidget_realize,
    /* actions                  */      0,
    /* num_actions              */      0,
    /* resources                */      0,
    /* num_resources            */      0,
    /* xrm_class                */      NULLQUARK,
    /* compress_motion          */      TRUE,
    /* compress_exposure        */      TRUE,
    /* compress_enterleave      */      TRUE,
    /* visible_interest         */      FALSE,
    /* destroy                  */      0,
    /* resize                   */      XtInheritResize,
    /* expose                   */      XtInheritExpose,
    /* set_values               */      0,
    /* set_values_hook          */      0,
    /* set_values_almost        */      XtInheritSetValuesAlmost,
    /* get_values_hook          */      0,
    /* accept_focus             */      XtInheritAcceptFocus,
    /* version                  */      XtVersion,
    /* callback_private         */      0,
    /* tm_table                 */      XtInheritTranslations,
    /* query_geometry           */      XtInheritQueryGeometry,
    /* display_accelerator      */      XtInheritDisplayAccelerator,
    /* extension                */      0
  },
  { /* qwidget fields */
    /* empty                    */      0
  }
};
static WidgetClass qWidgetClass = (WidgetClass)&qwidgetClassRec;

static bool filters_installed = FALSE;
static KXtApplication* qxtapp = 0;
static XtAppContext appcon;

static
Boolean qt_event_handler_wrapper( XEvent* event )
{
  return (Boolean)qt_event_handler( event );
}

static
void installXtEventFilters()
{
    if (filters_installed) return;
    // Get Xt out of our face - install filter on every event type
    for (int et=2; et < LASTEvent; et++) {
        qt_np_cascade_event_handler[et] = XtSetEventDispatcher(
            tqt_xdisplay(), et, qt_event_handler_wrapper );
    }
    filters_installed = TRUE;
}

static
void removeXtEventFilters()
{
    if (!filters_installed) return;
    // We aren't needed any more... slink back into the shadows.
    for (int et=2; et < LASTEvent; et++) {
        XtSetEventDispatcher(
            tqt_xdisplay(), et, qt_np_cascade_event_handler[et] );
    }
    filters_installed = FALSE;
}

// When we are in an event loop of TQApplication rather than the browser's
// event loop (eg. for a modal dialog), we still send events to Xt.
static
void np_event_proc( XEvent* e )
{
    Widget xtw = XtWindowToWidget( e->xany.display, e->xany.window );
    if ( xtw && tqApp->loopLevel() > 0 ) {
        // Allow Xt to process the event
        qt_np_cascade_event_handler[e->type]( e );
    }
}

static void np_set_timer( int interval )
{
    // Ensure we only have one timeout in progress - TQApplication is
    // computing the one amount of time we need to wait.
    if ( qt_np_timerid ) {
        XtRemoveTimeOut( qt_np_timerid );
    }
    qt_np_timerid = XtAppAddTimeOut(appcon, interval,
        (XtTimerCallbackProc)qt_np_timeout, 0);
}

static void np_do_timers( void*, void* )
{
    qt_np_timerid = 0; // It's us, and we just expired, that's why we are here.

    qt_activate_timers();

    timeval *tm = qt_wait_timer();

    if (tm) {
        int interval = QMIN(tm->tv_sec,INT_MAX/1000)*1000 + tm->tv_usec/1000;
        np_set_timer( interval );
    }
    qxtapp->sendPostedEvents();
}

/*!
  \class KXtApplication qxt.h
  \brief Allows mixing of Xt/Motif and Qt widgets.

  \extension Xt/Motif

  The KXtApplication and KXtWidget classes allow old Xt or Motif widgets
  to be used in new Qt applications.  They also allow Qt widgets to
  be used in primarily Xt/Motif applications.  The facility is intended
  to aid migration from Xt/Motif to the more comfortable Qt system.
*/

static bool my_xt;

/*!
  Constructs a TQApplication and initializes the Xt toolkit.
  The \a appclass, \a options, \a num_options, and \a resources
  arguments are passed on to XtAppSetFallbackResources and
  XtDisplayInitialize.

  Use this constructor when writing a new Qt application which
  needs to use some existing Xt/Motif widgets.
*/
KXtApplication::KXtApplication(int& argc, char** argv,
        const TQCString& rAppName, bool allowStyles, bool GUIenabled,
        XrmOptionDescRec *options, int num_options,
        char** resources)
  : TDEApplication(argc, argv, rAppName, allowStyles, GUIenabled)
{
    my_xt = TRUE;

    XtToolkitInitialize();
    appcon = XtCreateApplicationContext();
    if (resources) XtAppSetFallbackResources(appcon, (char**)resources);
    XtDisplayInitialize(appcon, tqt_xdisplay(), name(), rAppName, options,
        num_options, &argc, argv);
    init();
}

/*!
  Constructs a TQApplication from the \a display of an already-initialized
  Xt application.

  Use this constructor when introducing Qt widgets into an existing
  Xt/Motif application.
*/
KXtApplication::KXtApplication(Display* dpy, int& argc, char** argv,
        const TQCString& rAppName, bool allowStyles, bool GUIenabled)
   : TDEApplication(dpy, argc, argv, rAppName, allowStyles, GUIenabled)
{
    my_xt = FALSE;
    init();
    appcon = XtDisplayToApplicationContext(dpy);
}

/*!
  Destructs the application.  Does not close the Xt toolkit.
*/
KXtApplication::~KXtApplication()
{
    Q_ASSERT(qxtapp==this);
    removeXtEventFilters();
    qxtapp = 0;

    // the manpage says: "or just exit", that's what we do to avoid
    // double closing of the display
//     if (my_xt) {
//      XtDestroyApplicationContext(appcon);
//      }
}

void KXtApplication::init()
{
    Q_ASSERT(qxtapp==0);
    qxtapp = this;
    installXtEventFilters();
    qt_np_add_timeoutcb(np_do_timers);
    qt_np_add_timer_setter(np_set_timer);
    qt_np_add_event_proc(np_event_proc);
    qt_np_count++;
/*    TQTimer *timer = new TQTimer( this );
      timer->start(500);*/
}

/*!
  \class KXtWidget qxt.h
  \brief Allows mixing of Xt/Motif and Qt widgets.

  \extension Xt/Motif

  KXtWidget acts as a bridge between Xt and Qt. For utilizing old
  Xt widgets, it can be a QWidget
  based on a Xt widget class. For including Qt widgets in an existing
  Xt/Motif application, it can be a special Xt widget class that is
  a TQWidget.  See the constructors for the different behaviors.
*/

void KXtWidget::init(const char* name, WidgetClass widget_class,
                    Widget parent, TQWidget* qparent,
                    ArgList args, Cardinal num_args,
                    bool managed)
{
    need_reroot=FALSE;
    xtparent = 0;
    if (parent ) {
        Q_ASSERT(!qparent);
        xtw = XtCreateWidget(name, widget_class, parent, args, num_args);
        if ( widget_class == qWidgetClass )
            ((QWidgetRec*)xtw)->qwidget.qxtwidget = this;
        xtparent = parent;
        if (managed)
            XtManageChild(xtw);
    } else {
        Q_ASSERT(!managed);

        String n, c;
        XtGetApplicationNameAndClass(tqt_xdisplay(), &n, &c);
        xtw = XtAppCreateShell(n, c, widget_class, tqt_xdisplay(),
                               args, num_args);
        if ( widget_class == qWidgetClass )
            ((QWidgetRec*)xtw)->qwidget.qxtwidget = this;
    }

    if ( qparent ) {
        XtResizeWidget( xtw, 100, 100, 0 );
        XtSetMappedWhenManaged(xtw, False);
        XtRealizeWidget(xtw);
        XSync(tqt_xdisplay(), False);    // I want all windows to be created now
        XReparentWindow(tqt_xdisplay(), XtWindow(xtw), qparent->winId(), x(), y());
        XtSetMappedWhenManaged(xtw, True);
        need_reroot=TRUE;
    }

    Arg reqargs[20];
    Cardinal nargs=0;
    XtSetArg(reqargs[nargs], XtNx, x());        nargs++;
    XtSetArg(reqargs[nargs], XtNy, y());        nargs++;
    XtSetArg(reqargs[nargs], XtNwidth, width());        nargs++;
    XtSetArg(reqargs[nargs], XtNheight, height());      nargs++;
    //XtSetArg(reqargs[nargs], "mappedWhenManaged", False);     nargs++;
    XtSetValues(xtw, reqargs, nargs);

    //#### destroy();   MLK

    if (!parent || XtIsRealized(parent))
        XtRealizeWidget(xtw);
}


/*!
  Constructs a KXtWidget of the special Xt widget class known as
  TQWIDGET_OBJECT_NAME_STRING to the resource manager.

  Use this constructor to utilize Qt widgets in an Xt/Motif
  application.  The KXtWidget is a TQWidget, so you can create
  subwidgets, layouts, etc. using Qt functionality.
*/
KXtWidget::KXtWidget(const char* name, Widget parent, bool managed) :
    TQWidget( 0, name, WResizeNoErase )
{
    init(name, qWidgetClass, parent, 0, 0, 0, managed);
    Arg reqargs[20];
    Cardinal nargs=0;
    XtSetArg(reqargs[nargs], XtNborderWidth, 0);
    nargs++;
    XtSetValues(xtw, reqargs, nargs);
}

/*!
  Constructs a KXtWidget of the given \a widget_class.

  Use this constructor to utilize Xt or Motif widgets in a Qt
  application.  The KXtWidget looks and behaves
  like the Xt class, but can be used like any TQWidget.

  Note that Xt requires that the most toplevel Xt widget is a shell.
  That means, if \a parent is a KXtWidget, the \a widget_class can be
  of any kind. If there isn't a parent or the parent is just a normal
  TQWidget, \a widget_class should be something like \c
  topLevelShellWidgetClass.

  If the \a managed parameter is TRUE and \a parent in not NULL,
  XtManageChild it used to manage the child.
*/
KXtWidget::KXtWidget(const char* name, WidgetClass widget_class,
                     TQWidget *parent, ArgList args, Cardinal num_args,
                     bool managed) :
    TQWidget( parent, name, WResizeNoErase )
{
    if ( !parent )
        init(name, widget_class, 0, 0, args, num_args, managed);
    else if ( parent->inherits("KXtWidget") )
        init(name, widget_class, ( (KXtWidget*)parent)->xtw , 0, args, num_args, managed);
    else
        init(name, widget_class, 0, parent, args, num_args, managed);
    create(XtWindow(xtw), FALSE, FALSE);
}

/*!
  Destructs the KXtWidget.
*/
KXtWidget::~KXtWidget()
{
    // Delete children first, as Xt will destroy their windows
    //
    TQObjectList* list = queryList(TQWIDGET_OBJECT_NAME_STRING, 0, FALSE, FALSE);
    if ( list ) {
        TQWidget* c;
        TQObjectListIt it( *list );
        while ( (c = (TQWidget*)it.current()) ) {
            delete c;
            ++it;
        }
        delete list;
    }

    if ( need_reroot ) {
        hide();
        XReparentWindow(tqt_xdisplay(), winId(), tqApp->desktop()->winId(),
            x(), y());
    }

    XtDestroyWidget(xtw);
    destroy( FALSE, FALSE );
}

/*!
  \fn Widget KXtWidget::xtWidget() const
  Returns the Xt widget equivalent for the Qt widget.
*/



/*!
  Reimplemented to produce the Xt effect of getting focus when the
  mouse enters the widget. <em>This may be changed.</em>
*/
bool KXtWidget::x11Event( XEvent * e )
{
    if ( e->type == EnterNotify ) {
        if  ( xtparent )
            setActiveWindow();
    }
    return TQWidget::x11Event( e );
}


/*!
  Implement a degree of focus handling for Xt widgets.
*/
void KXtWidget::setActiveWindow()
{
    if  ( xtparent ) {
        if ( !TQWidget::isActiveWindow() && isActiveWindow() ) {
            XFocusChangeEvent e;
            e.type = FocusIn;
            e.window = winId();
            e.mode = NotifyNormal;
            e.detail = NotifyInferior;
            XSendEvent( tqt_xdisplay(), e.window, TRUE, NoEventMask, (XEvent*)&e );
        }
    } else {
        TQWidget::setActiveWindow();
    }
}

/*!
  Different from TQWidget::isActiveWindow()
 */
bool KXtWidget::isActiveWindow() const
{
    Window win;
    int revert;
    XGetInputFocus( tqt_xdisplay(), &win, &revert );

    if ( win == None) return FALSE;

    TQWidget *w = find( (WId)win );
    if ( w ) {
        // We know that window
        return w->topLevelWidget() == topLevelWidget();
    } else {
        // Window still may be a parent (if top-level is foreign window)
        Window root, parent;
        Window cursor = winId();
        Window *ch;
        unsigned int nch;
        while ( XQueryTree(tqt_xdisplay(), cursor, &root, &parent, &ch, &nch) ) {
            if (ch) XFree( (char*)ch);
            if ( parent == win ) return TRUE;
            if ( parent == root ) return FALSE;
            cursor = parent;
        }
        return FALSE;
    }
}

/*!\reimp
 */
void KXtWidget::moveEvent( TQMoveEvent* )
{
    if ( xtparent )
        return;
    XConfigureEvent c;
    c.type = ConfigureNotify;
    c.event = winId();
    c.window = winId();
    c.x = x();
    c.y = y();
    c.width = width();
    c.height = height();
    c.border_width = 0;
    XSendEvent( tqt_xdisplay(), c.event, TRUE, NoEventMask, (XEvent*)&c );
    XtMoveWidget( xtw, x(), y() );
}

/*!\reimp
 */
void KXtWidget::resizeEvent( TQResizeEvent* )
{
    if ( xtparent )
        return;
    XtWidgetGeometry preferred;
    (void ) XtQueryGeometry( xtw, 0, &preferred );
    XConfigureEvent c;
    c.type = ConfigureNotify;
    c.event = winId();
    c.window = winId();
    c.x = x();
    c.y = y();
    c.width = width();
    c.height = height();
    c.border_width = 0;
    XSendEvent( tqt_xdisplay(), c.event, TRUE, NoEventMask, (XEvent*)&c );
    XtResizeWidget( xtw, width(), height(), preferred.border_width );
}

#include "kxt.moc"

#endif