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00023 #include <qclipboard.h>
00024 #include <qlistbox.h>
00025 #include <qpopupmenu.h>
00026 #include <qapplication.h>
00027
00028 #include <kcompletionbox.h>
00029 #include <kcursor.h>
00030 #include <kiconloader.h>
00031 #include <kicontheme.h>
00032 #include <klineedit.h>
00033 #include <klocale.h>
00034 #include <knotifyclient.h>
00035 #include <kpixmapprovider.h>
00036 #include <kstdaccel.h>
00037 #include <kurl.h>
00038 #include <kurldrag.h>
00039
00040 #include <kdebug.h>
00041
00042 #include "kcombobox.h"
00043
00044 #include <stdlib.h>
00045
00046 class KComboBox::KComboBoxPrivate
00047 {
00048 public:
00049 KComboBoxPrivate() : klineEdit(0L)
00050 {
00051 }
00052 ~KComboBoxPrivate()
00053 {
00054 }
00055
00056 KLineEdit *klineEdit;
00057 };
00058
00059 KComboBox::KComboBox( QWidget *parent, const char *name )
00060 : QComboBox( parent, name ), d(new KComboBoxPrivate)
00061 {
00062 init();
00063 }
00064
00065 KComboBox::KComboBox( bool rw, QWidget *parent, const char *name )
00066 : QComboBox( rw, parent, name ), d(new KComboBoxPrivate)
00067 {
00068 init();
00069
00070 if ( rw )
00071 {
00072 KLineEdit *edit = new KLineEdit( this, "combo lineedit" );
00073 setLineEdit( edit );
00074 }
00075 }
00076
00077 KComboBox::~KComboBox()
00078 {
00079 delete d;
00080 }
00081
00082 void KComboBox::init()
00083 {
00084
00085 QComboBox::setAutoCompletion( false );
00086
00087
00088
00089 setContextMenuEnabled( true );
00090 }
00091
00092
00093 bool KComboBox::contains( const QString& _text ) const
00094 {
00095 if ( _text.isEmpty() )
00096 return false;
00097
00098 const int itemCount = count();
00099 for (int i = 0; i < itemCount; ++i )
00100 {
00101 if ( text(i) == _text )
00102 return true;
00103 }
00104 return false;
00105 }
00106
00107 void KComboBox::setAutoCompletion( bool autocomplete )
00108 {
00109 if ( d->klineEdit )
00110 {
00111 if ( autocomplete )
00112 {
00113 d->klineEdit->setCompletionMode( KGlobalSettings::CompletionAuto );
00114 setCompletionMode( KGlobalSettings::CompletionAuto );
00115 }
00116 else
00117 {
00118 d->klineEdit->setCompletionMode( KGlobalSettings::completionMode() );
00119 setCompletionMode( KGlobalSettings::completionMode() );
00120 }
00121 }
00122 }
00123
00124 void KComboBox::setContextMenuEnabled( bool showMenu )
00125 {
00126 if( d->klineEdit )
00127 d->klineEdit->setContextMenuEnabled( showMenu );
00128 }
00129
00130
00131 void KComboBox::setURLDropsEnabled( bool enable )
00132 {
00133 if ( d->klineEdit )
00134 d->klineEdit->setURLDropsEnabled( enable );
00135 }
00136
00137 bool KComboBox::isURLDropsEnabled() const
00138 {
00139 return d->klineEdit && d->klineEdit->isURLDropsEnabled();
00140 }
00141
00142
00143 void KComboBox::setCompletedText( const QString& text, bool marked )
00144 {
00145 if ( d->klineEdit )
00146 d->klineEdit->setCompletedText( text, marked );
00147 }
00148
00149 void KComboBox::setCompletedText( const QString& text )
00150 {
00151 if ( d->klineEdit )
00152 d->klineEdit->setCompletedText( text );
00153 }
00154
00155 void KComboBox::makeCompletion( const QString& text )
00156 {
00157 if( d->klineEdit )
00158 d->klineEdit->makeCompletion( text );
00159
00160 else
00161 {
00162 if( text.isNull() || !listBox() )
00163 return;
00164
00165 const int index = listBox()->index( listBox()->findItem( text ) );
00166 if( index >= 0 )
00167 setCurrentItem( index );
00168 }
00169 }
00170
00171 void KComboBox::rotateText( KCompletionBase::KeyBindingType type )
00172 {
00173 if ( d->klineEdit )
00174 d->klineEdit->rotateText( type );
00175 }
00176
00177
00178 bool KComboBox::eventFilter( QObject* o, QEvent* ev )
00179 {
00180 return QComboBox::eventFilter( o, ev );
00181 }
00182
00183 void KComboBox::setTrapReturnKey( bool grab )
00184 {
00185 if ( d->klineEdit )
00186 d->klineEdit->setTrapReturnKey( grab );
00187 else
00188 qWarning("KComboBox::setTrapReturnKey not supported with a non-KLineEdit.");
00189 }
00190
00191 bool KComboBox::trapReturnKey() const
00192 {
00193 return d->klineEdit && d->klineEdit->trapReturnKey();
00194 }
00195
00196
00197 void KComboBox::setEditURL( const KURL& url )
00198 {
00199 QComboBox::setEditText( url.prettyURL() );
00200 }
00201
00202 void KComboBox::insertURL( const KURL& url, int index )
00203 {
00204 QComboBox::insertItem( url.prettyURL(), index );
00205 }
00206
00207 void KComboBox::insertURL( const QPixmap& pixmap, const KURL& url, int index )
00208 {
00209 QComboBox::insertItem( pixmap, url.prettyURL(), index );
00210 }
00211
00212 void KComboBox::changeURL( const KURL& url, int index )
00213 {
00214 QComboBox::changeItem( url.prettyURL(), index );
00215 }
00216
00217 void KComboBox::changeURL( const QPixmap& pixmap, const KURL& url, int index )
00218 {
00219 QComboBox::changeItem( pixmap, url.prettyURL(), index );
00220 }
00221
00222 void KComboBox::setCompletedItems( const QStringList& items )
00223 {
00224 if ( d->klineEdit )
00225 d->klineEdit->setCompletedItems( items );
00226 }
00227
00228 KCompletionBox * KComboBox::completionBox( bool create )
00229 {
00230 if ( d->klineEdit )
00231 return d->klineEdit->completionBox( create );
00232 return 0;
00233 }
00234
00235
00236 void KComboBox::create( WId id, bool initializeWindow, bool destroyOldWindow )
00237 {
00238 QComboBox::create( id, initializeWindow, destroyOldWindow );
00239 KCursor::setAutoHideCursor( lineEdit(), true, true );
00240 }
00241
00242 void KComboBox::wheelEvent( QWheelEvent *ev )
00243 {
00244
00245 QComboBox::wheelEvent( ev );
00246 }
00247
00248 void KComboBox::setLineEdit( QLineEdit *edit )
00249 {
00250 if ( !editable() && edit &&
00251 !qstrcmp( edit->className(), "QLineEdit" ) )
00252 {
00253
00254
00255
00256
00257
00258 delete edit;
00259 edit = new KLineEdit( this, "combo edit" );
00260 }
00261
00262 QComboBox::setLineEdit( edit );
00263 d->klineEdit = dynamic_cast<KLineEdit*>( edit );
00264 setDelegate( d->klineEdit );
00265
00266
00267 if (edit)
00268 connect( edit, SIGNAL( returnPressed() ), SIGNAL( returnPressed() ));
00269
00270 if ( d->klineEdit )
00271 {
00272
00273
00274
00275
00276 connect( edit, SIGNAL( destroyed() ), SLOT( lineEditDeleted() ));
00277
00278 connect( d->klineEdit, SIGNAL( returnPressed( const QString& )),
00279 SIGNAL( returnPressed( const QString& ) ));
00280
00281 connect( d->klineEdit, SIGNAL( completion( const QString& )),
00282 SIGNAL( completion( const QString& )) );
00283
00284 connect( d->klineEdit, SIGNAL( substringCompletion( const QString& )),
00285 SIGNAL( substringCompletion( const QString& )) );
00286
00287 connect( d->klineEdit,
00288 SIGNAL( textRotation( KCompletionBase::KeyBindingType )),
00289 SIGNAL( textRotation( KCompletionBase::KeyBindingType )) );
00290
00291 connect( d->klineEdit,
00292 SIGNAL( completionModeChanged( KGlobalSettings::Completion )),
00293 SIGNAL( completionModeChanged( KGlobalSettings::Completion)));
00294
00295 connect( d->klineEdit,
00296 SIGNAL( aboutToShowContextMenu( QPopupMenu * )),
00297 SIGNAL( aboutToShowContextMenu( QPopupMenu * )) );
00298
00299 connect( d->klineEdit,
00300 SIGNAL( completionBoxActivated( const QString& )),
00301 SIGNAL( activated( const QString& )) );
00302 }
00303 }
00304
00305 void KComboBox::setCurrentItem( const QString& item, bool insert, int index )
00306 {
00307 int sel = -1;
00308
00309 const int itemCount = count();
00310 for (int i = 0; i < itemCount; ++i)
00311 {
00312 if (text(i) == item)
00313 {
00314 sel = i;
00315 break;
00316 }
00317 }
00318
00319 if (sel == -1 && insert)
00320 {
00321 insertItem(item, index);
00322 if (index >= 0)
00323 sel = index;
00324 else
00325 sel = count() - 1;
00326 }
00327 setCurrentItem(sel);
00328 }
00329
00330 void KComboBox::lineEditDeleted()
00331 {
00332
00333
00334
00335 const KCompletionBase *base = static_cast<const KCompletionBase*>( static_cast<const KLineEdit*>( sender() ));
00336
00337
00338 if ( base == delegate() )
00339 setDelegate( 0L );
00340 }
00341
00342
00343
00344
00345
00346
00347
00348 KHistoryCombo::KHistoryCombo( QWidget *parent, const char *name )
00349 : KComboBox( true, parent, name ), d(0)
00350 {
00351 init( true );
00352 }
00353
00354
00355 KHistoryCombo::KHistoryCombo( bool useCompletion,
00356 QWidget *parent, const char *name )
00357 : KComboBox( true, parent, name ), d(0)
00358 {
00359 init( useCompletion );
00360 }
00361
00362 void KHistoryCombo::init( bool useCompletion )
00363 {
00364 if ( useCompletion )
00365 completionObject()->setOrder( KCompletion::Weighted );
00366
00367 setInsertionPolicy( NoInsertion );
00368 myIterateIndex = -1;
00369 myRotated = false;
00370 myPixProvider = 0L;
00371
00372
00373 QCString histControl = getenv("HISTCONTROL");
00374 if ( histControl == "ignoredups" || histControl == "ignoreboth" )
00375 setDuplicatesEnabled( false );
00376
00377 connect( this, SIGNAL(aboutToShowContextMenu(QPopupMenu*)),
00378 SLOT(addContextMenuItems(QPopupMenu*)) );
00379 connect( this, SIGNAL( activated(int) ), SLOT( slotReset() ));
00380 connect( this, SIGNAL( returnPressed(const QString&) ), SLOT(slotReset()));
00381 }
00382
00383 KHistoryCombo::~KHistoryCombo()
00384 {
00385 delete myPixProvider;
00386 }
00387
00388 void KHistoryCombo::setHistoryItems( QStringList items,
00389 bool setCompletionList )
00390 {
00391 KComboBox::clear();
00392
00393
00394 const int itemCount = items.count();
00395 const int toRemove = itemCount - maxCount();
00396
00397 if (toRemove >= itemCount) {
00398 items.clear();
00399 } else {
00400 for (int i = 0; i < toRemove; ++i)
00401 items.pop_front();
00402 }
00403
00404 insertItems( items );
00405
00406 if ( setCompletionList && useCompletion() ) {
00407
00408 KCompletion *comp = completionObject();
00409 comp->setOrder( KCompletion::Insertion );
00410 comp->setItems( items );
00411 comp->setOrder( KCompletion::Weighted );
00412 }
00413
00414 clearEdit();
00415 }
00416
00417 QStringList KHistoryCombo::historyItems() const
00418 {
00419 QStringList list;
00420 const int itemCount = count();
00421 for ( int i = 0; i < itemCount; ++i )
00422 list.append( text( i ) );
00423
00424 return list;
00425 }
00426
00427 void KHistoryCombo::clearHistory()
00428 {
00429 const QString temp = currentText();
00430 KComboBox::clear();
00431 if ( useCompletion() )
00432 completionObject()->clear();
00433 setEditText( temp );
00434 }
00435
00436 void KHistoryCombo::addContextMenuItems( QPopupMenu* menu )
00437 {
00438 if ( menu )
00439 {
00440 menu->insertSeparator();
00441 int id = menu->insertItem( SmallIconSet("history_clear"), i18n("Clear &History"), this, SLOT( slotClear()));
00442 if (!count())
00443 menu->setItemEnabled(id, false);
00444 }
00445 }
00446
00447 void KHistoryCombo::addToHistory( const QString& item )
00448 {
00449 if ( item.isEmpty() || (count() > 0 && item == text(0) )) {
00450 return;
00451 }
00452
00453 bool wasCurrent = false;
00454
00455 if ( !duplicatesEnabled() ) {
00456 int i = 0;
00457 int itemCount = count();
00458 while ( i < itemCount ) {
00459 if ( text( i ) == item ) {
00460 if ( !wasCurrent )
00461 wasCurrent = ( i == currentItem() );
00462 removeItem( i );
00463 --itemCount;
00464 } else {
00465 ++i;
00466 }
00467 }
00468 }
00469
00470
00471 if ( myPixProvider )
00472 insertItem( myPixProvider->pixmapFor(item, KIcon::SizeSmall), item, 0);
00473 else
00474 insertItem( item, 0 );
00475
00476 if ( wasCurrent )
00477 setCurrentItem( 0 );
00478
00479 const bool useComp = useCompletion();
00480
00481 const int last = count() - 1;
00482 const int mc = maxCount();
00483 const int stopAt = QMAX(mc, 0);
00484
00485 for (int rmIndex = last; rmIndex >= stopAt; --rmIndex) {
00486
00487
00488
00489 const QString rmItem = text( rmIndex );
00490 removeItem( rmIndex );
00491 if ( useComp && !contains( rmItem ) )
00492 completionObject()->removeItem( rmItem );
00493 }
00494
00495 if ( useComp )
00496 completionObject()->addItem( item );
00497 }
00498
00499 bool KHistoryCombo::removeFromHistory( const QString& item )
00500 {
00501 if ( item.isEmpty() )
00502 return false;
00503
00504 bool removed = false;
00505 const QString temp = currentText();
00506 int i = 0;
00507 int itemCount = count();
00508 while ( i < itemCount ) {
00509 if ( item == text( i ) ) {
00510 removed = true;
00511 removeItem( i );
00512 --itemCount;
00513 } else {
00514 ++i;
00515 }
00516 }
00517
00518 if ( removed && useCompletion() )
00519 completionObject()->removeItem( item );
00520
00521 setEditText( temp );
00522 return removed;
00523 }
00524
00525 void KHistoryCombo::rotateUp()
00526 {
00527
00528 if ( myIterateIndex == -1 )
00529 myText = currentText();
00530
00531 ++myIterateIndex;
00532
00533
00534 const int last = count() - 1;
00535 const QString currText = currentText();
00536
00537 while ( myIterateIndex < last &&
00538 (currText == text( myIterateIndex ) ||
00539 text( myIterateIndex ).isEmpty()) )
00540 ++myIterateIndex;
00541
00542 if ( myIterateIndex >= count() ) {
00543 myRotated = true;
00544 myIterateIndex = -1;
00545
00546
00547 if ( count() > 0 && myText == text(0) )
00548 myIterateIndex = 0;
00549
00550 setEditText( myText );
00551 }
00552 else
00553 setEditText( text( myIterateIndex ));
00554 }
00555
00556 void KHistoryCombo::rotateDown()
00557 {
00558
00559 if ( myIterateIndex == -1 )
00560 myText = currentText();
00561
00562 --myIterateIndex;
00563
00564 const QString currText = currentText();
00565
00566 while ( myIterateIndex >= 0 &&
00567 (currText == text( myIterateIndex ) ||
00568 text( myIterateIndex ).isEmpty()) )
00569 --myIterateIndex;
00570
00571
00572 if ( myIterateIndex < 0 ) {
00573 if ( myRotated && myIterateIndex == -2 ) {
00574 myRotated = false;
00575 myIterateIndex = count() - 1;
00576 setEditText( text(myIterateIndex) );
00577 }
00578 else {
00579 if ( myIterateIndex == -2 ) {
00580 KNotifyClient::event( (int)winId(), KNotifyClient::notification,
00581 i18n("No further item in the history."));
00582 }
00583
00584 myIterateIndex = -1;
00585 if ( currentText() != myText )
00586 setEditText( myText );
00587 }
00588 }
00589 else
00590 setEditText( text( myIterateIndex ));
00591
00592 }
00593
00594 void KHistoryCombo::keyPressEvent( QKeyEvent *e )
00595 {
00596 KKey event_key( e );
00597
00598
00599 if ( KStdAccel::rotateUp().contains(event_key) )
00600 rotateUp();
00601
00602
00603
00604 else if ( KStdAccel::rotateDown().contains(event_key) )
00605 rotateDown();
00606 else
00607 KComboBox::keyPressEvent( e );
00608 }
00609
00610 void KHistoryCombo::wheelEvent( QWheelEvent *ev )
00611 {
00612
00613 QListBox* const lb = listBox();
00614 if ( lb && lb->isVisible() )
00615 {
00616 QApplication::sendEvent( lb, ev );
00617 return;
00618 }
00619
00620 if ( ev->delta() > 0 ) {
00621 rotateUp();
00622 } else {
00623 rotateDown();
00624 }
00625 ev->accept();
00626 }
00627
00628 void KHistoryCombo::slotReset()
00629 {
00630 myIterateIndex = -1;
00631 myRotated = false;
00632 }
00633
00634
00635 void KHistoryCombo::setPixmapProvider( KPixmapProvider *prov )
00636 {
00637 if ( myPixProvider == prov )
00638 return;
00639
00640 delete myPixProvider;
00641 myPixProvider = prov;
00642
00643
00644
00645
00646 if ( count() > 0 ) {
00647 QStringList items( historyItems() );
00648 clear();
00649 insertItems( items );
00650 }
00651 }
00652
00653 void KHistoryCombo::insertItems( const QStringList& items )
00654 {
00655 QStringList::ConstIterator it = items.constBegin();
00656 const QStringList::ConstIterator itEnd = items.constEnd();
00657
00658 while ( it != itEnd ) {
00659 const QString item = *it;
00660 if ( !item.isEmpty() ) {
00661 if ( myPixProvider )
00662 insertItem( myPixProvider->pixmapFor(item, KIcon::SizeSmall),
00663 item );
00664 else
00665 insertItem( item );
00666 }
00667 ++it;
00668 }
00669 }
00670
00671 void KHistoryCombo::slotClear()
00672 {
00673 clearHistory();
00674 emit cleared();
00675 }
00676
00677 void KComboBox::virtual_hook( int id, void* data )
00678 { KCompletionBase::virtual_hook( id, data ); }
00679
00680 void KHistoryCombo::virtual_hook( int id, void* data )
00681 { KComboBox::virtual_hook( id, data ); }
00682
00683 #include "kcombobox.moc"