summaryrefslogtreecommitdiff
path: root/libopie2/opieui/big-screen/osplitter.cpp
blob: 89f3793330d3008957cd5f842c9b9435682c3f53 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
/*
               =.            This file is part of the OPIE Project
             .=l.            Copyright (c)  2003 hOlgAr <zecke@handhelds.org>
           .>+-=
 _;:,     .>    :=|.         This library is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       This library is distributed in the hope that
     +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
    : ..    .:,     . . .    without even the implied warranty of
    =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
  _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
..}^=.=       =       ;      Library General Public License for more
++=   -.     .`     .:       details.
 :     =  ...= . :.=-
 -.   .:....=;==+<;          You should have received a copy of the GNU
  -_. . .   )=.  =           Library General Public License along with
    --        :-=`           this library; see the file COPYING.LIB.
                             If not, write to the Free Software Foundation,
                             Inc., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#include "osplitter.h"

/* OPIE */
#include <opie2/otabwidget.h>

/* QT */
#include <qvaluelist.h>
#include <qvbox.h>

using namespace Opie;

/**
 *
 * This is the constructor of OSplitter
 * You might want to call setSizeChange to tell
 * OSplitter to change its layout when a specefic
 * mark was crossed. OSplitter sets a default value.
 *
 * You cann add widget with addWidget to the OSplitter.
 * OSplitter supports also grouping of Splitters where they
 * can share one OTabBar in small screen mode. This can be used
 * for email clients like vies but see the example.
 *
 * @param orient The orientation wether to layout horizontal or vertical
 * @param parent The parent of this widget
 * @param name   The name passed on to QObject
 * @param fl     Additional widgets flags passed to QWidget
 *
 * @short single c'tor of the OSplitter
 */
OSplitter::OSplitter( Orientation orient, QWidget* parent, const char* name, WFlags fl )
        : QFrame( parent, name, fl )
{
    m_orient = orient;
    m_hbox = 0;
    m_size_policy = 330;
    setFontPropagation( AllChildren );
    setPalettePropagation( AllChildren );

    /* start by default with the tab widget */
    m_tabWidget = 0;
    m_parentTab = 0;
    changeTab();

}


/**
 * Destructor destructs this object and cleans up. All child
 * widgets will be deleted
 * @see addWidget
 */
OSplitter::~OSplitter()
{
    qWarning("Deleted Splitter");
    m_splitter.setAutoDelete( true );
    m_splitter.clear();

    delete m_hbox;
    delete m_tabWidget;
}


/**
 * Sets the label for the Splitter. This label will be used
 * if a parent splitter is arranged as TabWidget but
 * this splitter is in fullscreen mode. Then a tab with OSplitter::label()
 * and iconName() gets added.
 *
 * @param name The name of the Label
 */
void OSplitter::setLabel( const QString& name )
{
    m_name = name;
}

/**
 * @see setLabel but this is for the icon retrieved by Resource
 *
 * @param name The name of the icon in example ( "zoom" )
 */
void OSplitter::setIconName( const QString& name )
{
    m_icon = name;
}


/**
 * returns the iconName
 * @see setIconName
 */
QString OSplitter::iconName()const
{
    return m_icon;
}

/**
 * returns the label set with setLabel
 * @see setLabel
 */
QString OSplitter::label()const
{
    return m_name;
}

/**
 * This function sets the size change policy of the splitter.
 * If this size marked is crossed the splitter will relayout.
 * Note: that depending on the set Orientation it'll either look
 * at the width or height.
 * Note: If you want to from side to side view to tabbed view you need
 * to make sure that the size you supply is not smaller than the minimum
 * size of your added widgets. Note that if you use widgets like QComboBoxes
 * you need to teach them to accept smaller sizes as well @see QWidget::setSizePolicy
 *
 * @param width_height The mark that will be watched. Interpreted depending on the Orientation of the Splitter.
 * @return void
 */
void OSplitter::setSizeChange( int width_height )
{
    m_size_policy = width_height;
    QSize sz(width(), height() );
    QResizeEvent ev(sz, sz );
    resizeEvent(&ev);
}

/**
 * This functions allows to add another OSplitter and to share
 * the OTabBar in small screen mode. The ownerships gets transfered.
 * OSplitters are always added after normal widget items
 */
void OSplitter::addWidget( OSplitter* split )
{
    m_splitter.append( split );

    /*
     * set tab widget
     */
    if (m_tabWidget )
        setTabWidget( m_parentTab );
    else
    {
        Opie::OSplitterContainer con;
        con.widget =split;
        addToBox( con );
    }
}

/*
 * If in a tab it should be removed
 * and if in a hbox  the reparent kills it too
 */
/**
 * This removes the splitter again. You currently need to call this
 * before you delete or otherwise you can get mem corruption
 * or other weird behaviour.
 * Owner ship gets transfered back to you it's current parent
 * is 0
 */
void OSplitter::removeWidget( OSplitter* split)
{
    split->setTabWidget( 0 );
    split->reparent( 0, 0, QPoint(0, 0) );
}

/**
 * Adds a widget to the Splitter. The widgets gets inserted
 * at the end of either the Box or TabWidget.
 * Ownership gets transfered and the widgets gets reparented.
 * Note: icon and label is only available on small screensizes
 *  if size is smaller than the mark
 * Warning: No null checking of the widget is done. Only on debug
 * a message will be outputtet
 *
 * @param wid The widget which will be added
 * @param icon The icon of the possible Tab
 * @param label The label of the possible Tab
 */
void OSplitter::addWidget( QWidget* wid, const QString& icon, const QString& label )
{
#ifdef DEBUG
    if (!wid )
    {
        qWarning("Widget is not valid!");
        return;
    }
#endif
    Opie::OSplitterContainer cont;
    cont.widget = wid;
    cont.icon =icon;
    cont.name = label;

    m_container.append( cont );

    /*
     *
     */
    if (!m_splitter.isEmpty() && (m_tabWidget || m_parentTab ) )
        setTabWidget( m_parentTab );
    else
    {
        if (m_hbox )
            addToBox( cont );
        else
            addToTab( cont );
    }
}


/**
 * Removes the widget from the tab widgets if necessary.
 * OSplitter drops ownership of this widget and the widget
 * will be reparented i tto 0.
 * The widget will not be deleted.
 *
 * @param w The widget to be removed
 */
void OSplitter::removeWidget( QWidget* w)
{
    ContainerList::Iterator it;
    for ( it = m_container.begin(); it != m_container.end(); ++it )
        if ( (*it).widget == w )
            break;

    if (it == m_container.end() )
        return;


    /* only tab needs to be removed.. box recognizes it */
    if ( !m_hbox )
        removeFromTab( w );


    /* Find reparent it and remove it from our list */

    w->reparent( 0, 0, QPoint(0, 0));
    it = m_container.remove( it );

}


/**
 * This method will give focus to the widget. If in a tabwidget
 * the tabbar will be changed
 *
 * @param w The widget which will be set the current one
 */
void OSplitter::setCurrentWidget( QWidget*  w)
{
    if (m_tabWidget )
        m_tabWidget->setCurrentTab( w );
    //    else
    //      m_hbox->setFocus( w );

}

/**
 * This is an overloaded member function and only differs in the
 * argument it takes.
 * Searches list of widgets for label. It'll pick the first label it finds
 *
 * @param label Label to look for. First match will be taken
 */
void OSplitter::setCurrentWidget( const QString& label )
{
    ContainerList::Iterator it;
    for (it = m_container.begin(); it != m_container.end(); ++it )
    {
        if ( (*it).name == label )
        {
            setCurrentWidget( (*it).widget );
            break;
        }
    }
}

/**
 * This will only work when the TabWidget is active
 * If everything is visible this signal is kindly ignored
 * @see OTabWidget::setCurrentTab(int)
 *
 * @param tab The tab to make current
 */
void OSplitter::setCurrentWidget( int tab )
{
    if (m_tabWidget )
        m_tabWidget->setCurrentTab( tab );
}

/**
 * return the currently activated widget if in tab widget mode
 * or null because all widgets are visible
 */
QWidget* OSplitter::currentWidget() const
{
    if (m_tabWidget)
        return m_tabWidget->currentWidget();
    else if (m_parentTab )
        return m_parentTab->currentWidget();

    return 0l;
}
/* wrong */
#if 0
/**
 * @reimplented for internal reasons
 * returns the sizeHint of one of its sub widgets
 */
QSize OSplitter::sizeHint()const
{
    if (m_parentTab )
        return QFrame::sizeHint();

    if (m_hbox )
        return m_hbox->sizeHint();
    else
        return m_tabWidget->sizeHint();
}

QSize OSplitter::minimumSizeHint()const
{
    if (m_parentTab )
        return QFrame::minimumSizeHint();
    if (m_hbox)
        return m_hbox->sizeHint();
    else
        return m_tabWidget->sizeHint();
}
#endif

/**
 * @reimplemented for internal reasons
 */
void OSplitter::resizeEvent( QResizeEvent* res )
{
    QFrame::resizeEvent( res );
    /*
     *
     */
    //    qWarning("Old size was width = %d height = %d", res->oldSize().width(), res->oldSize().height() );
    bool mode = true;
    qWarning("New size is  width = %d height = %d  %s", res->size().width(), res->size().height(), name() );
    if ( res->size().width() > m_size_policy &&
            m_orient == Horizontal )
    {
        changeHBox();
        mode = false;
    }
    else if ( (res->size().width() <= m_size_policy &&
               m_orient == Horizontal ) ||
              (res->size().height() <= m_size_policy &&
               m_orient == Vertical ) )
    {
        changeTab();
    }
    else if ( res->size().height() > m_size_policy &&
              m_orient == Vertical )
    {
        qWarning("Changng to vbox %s", name() );
        changeVBox();
        mode = false;
    }

    emit sizeChanged(mode, m_orient );
}

/*
 * Adds a container to a tab either the parent tab
 * or our own
 */
void OSplitter::addToTab( const Opie::OSplitterContainer& con )
{
    QWidget *wid = con.widget;
    // not needed widgetstack will reparent as well    wid.reparent(m_tabWidget, wid->getWFlags(), QPoint(0, 0) );
    if (m_parentTab )
        m_parentTab->addTab( wid, con.icon, con.name );
    else
        m_tabWidget->addTab( wid, con.icon, con.name );
}


/*
 * adds a container to the box
 */
void OSplitter::addToBox( const Opie::OSplitterContainer& con )
{
    QWidget* wid = con.widget;
    wid->reparent(m_hbox, 0,  QPoint(0, 0) );
}


/*
 * Removes a widget from the tab
 */
void OSplitter::removeFromTab( QWidget* wid )
{
    if (m_parentTab )
        m_parentTab->removePage( wid );
    else
        m_tabWidget->removePage( wid );
}

/*
 * switches over to a OTabWidget layout
 * it is recursive
 */
void OSplitter::changeTab()
{
    /* if we're the owner of the tab widget */
    if (m_tabWidget )
    {
        raise();
        show();
        m_tabWidget->setGeometry( frameRect() );
        return;
    }

    qWarning(" New Tab Widget %s", name() );
    /*
     * and add all widgets this will reparent them
     * delete m_hbox set it to 0
     *
     */
    OTabWidget *tab;
    if ( m_parentTab )
    {
        hide();
        tab = m_parentTab;
        /* expensive but needed cause we're called from setTabWidget and resizeEvent*/
        if (!m_container.isEmpty() )
        {
            ContainerList::Iterator it = m_container.begin();
            for (; it != m_container.end(); ++it )
                m_parentTab->removePage( (*it).widget );
        }
    }
    else
        tab = m_tabWidget = new OTabWidget( this );

    connect(tab, SIGNAL(currentChanged(QWidget*) ),
            this, SIGNAL(currentChanged(QWidget*) ) );

    for ( ContainerList::Iterator it = m_container.begin(); it != m_container.end(); ++it )
    {
        qWarning("Widget is %s", (*it).name.latin1() );
        addToTab( (*it) );
    }

    for ( OSplitter* split = m_splitter.first(); split; split = m_splitter.next() )
    {
        split->reparent(this, 0, QPoint(0, 0) );
        split->setTabWidget( tab );
    }


    delete m_hbox;
    m_hbox = 0;
    if (!m_tabWidget )
        return;

    m_tabWidget->setGeometry( frameRect() );
    m_tabWidget->show();

}

/*
 * changes over to a box
 * this is recursive as well
 */
void OSplitter::changeHBox()
{
    if (m_hbox )
    {
        m_hbox->setGeometry( frameRect() );
        return;
    }

    qWarning("new HBox %s", name() );
    m_hbox = new QHBox( this );
    commonChangeBox();
}

void OSplitter::changeVBox()
{
    if (m_hbox )
    {
        m_hbox->setGeometry( frameRect() );
        return;
    }

    qWarning("New VBOX %s", name() );
    m_hbox = new QVBox( this );

    commonChangeBox();

}

/*
 * common box code
 * first remove and add children
 * the other splitters
 * it is recursive as well due the call to setTabWidget
 */
void OSplitter::commonChangeBox()
{
    qWarning(" Name of Splitters is %s", name() );

    for (ContainerList::Iterator it = m_container.begin(); it != m_container.end(); ++it )
    {
        /* only if parent tab.. m_tabWidgets gets deleted and would do that as well */
        if (m_parentTab )
            removeFromTab( (*it).widget );
        qWarning("Adding to box %s", (*it).name.latin1() );
        addToBox( (*it) );
    }
    for ( OSplitter* split = m_splitter.first(); split; split = m_splitter.next() )
    {
        /* tell them the world had changed */
        split->setTabWidget( 0 );
        Opie::OSplitterContainer con;
        con.widget = split;
        //        con.widget = split->m_tabWidget ? static_cast<QWidget*>(split->m_tabWidget)
        //                     : static_cast<QWidget*>(split->m_hbox);
        addToBox( con );
    }



    if (m_parentTab )
        m_parentTab->addTab(m_hbox, iconName(), label() );
    else
    {
        qWarning(" setting Box geometry for %s", name() );
        m_hbox->setGeometry( frameRect() );
        m_hbox->show();
        delete m_tabWidget;
        m_tabWidget = 0;
        show(); // also show this widget
    }
}

/*
 * sets the tabwidget, removes tabs, and relayouts the widget
 */
void OSplitter::setTabWidget( OTabWidget* wid)
{
    /* clean up cause m_parentTab will not be available for us */
    if ( m_parentTab )
    {
        if (m_hbox )
            m_parentTab->removePage( m_hbox );
        else if (!m_container.isEmpty() )
        {
            ContainerList::Iterator it = m_container.begin();
            for ( ; it != m_container.end(); ++it )
                m_parentTab->removePage( (*it).widget );
        }
    }
    /* the parent Splitter changed so either make us indepent or dep */

    m_parentTab = wid;

    QWidget *tab =  m_tabWidget;
    QWidget *box =  m_hbox;
    m_hbox = 0; m_tabWidget = 0;

    if ( layoutMode() )
        changeTab();
    else if (m_orient == Horizontal )
        changeHBox();
    else
        changeVBox();

    /* our own crap is added and children from change* */
    delete tab;
    delete box;
}

#if 0
void OSplitter::reparentAll()
{
    if (m_container.isEmpty() )
        return;

    ContainerList::Iterator it = m_container.begin();
    for ( ; it != m_container.end(); ++it )
        (*it).wid->reparent(0, 0, QPoint(0, 0) );


}
#endif

/**
 *  @internal
 */
bool OSplitter::layoutMode()const
{
    if ( size().width() > m_size_policy &&
            m_orient == Horizontal )
    {
        return false;
    }
    else if ( size().height() > m_size_policy &&
              m_orient == Vertical )
    {
        return false;
    }

    return true;
}