1 #include "OB_Browser.h"
4 #include "OB_ListItem.h"
5 #include "OB_ListView.h"
12 #include <qlistview.h>
13 #include <qpopupmenu.h>
16 Class: OB_Browser::ToolTip
17 Descr: Tool tip for OB_Browser.
20 class OB_Browser::ToolTip : public QToolTip
23 ToolTip( OB_Browser* b, QWidget* p = 0 );
26 void maybeTip( const QPoint& );
29 OB_Browser* myBrowser;
32 OB_Browser::ToolTip::ToolTip( OB_Browser* b, QWidget* p )
38 OB_Browser::ToolTip::~ToolTip()
42 void OB_Browser::ToolTip::maybeTip( const QPoint& pos )
44 if ( !parentWidget() || !myBrowser || !myBrowser->isShowToolTips() )
47 QListView* lv = myBrowser->getListView();
49 QListViewItem* item = lv->itemAt( pos );
50 SUIT_DataObject* obj = myBrowser->dataObject( item );
54 QString aText = obj->toolTip();
56 if ( aText.isEmpty() )
59 QRect aRect = lv->itemRect( item );
66 Descr: Hierarchical tree object browser.
69 OB_Browser::OB_Browser( QWidget* parent, SUIT_DataObject* root )
75 myAutoUpdate( false ),
76 myAutoDelObjs( false ),
77 myRootDecorated( true )
79 myView = new OB_ListView( this );
80 myView->addColumn( "Data" );
81 myView->setSorting( -1 );
82 myView->setRootIsDecorated( true );
83 myView->setSelectionMode( QListView::Extended );
84 myView->installEventFilter( this );
86 QVBoxLayout* main = new QVBoxLayout( this );
87 main->addWidget( myView );
89 myShowToolTips = true;
90 myTooltip = new ToolTip( this, myView->viewport() );
92 connect( myView, SIGNAL( dropped( QPtrList<QListViewItem>, QListViewItem*, int ) ),
93 this, SLOT( onDropped( QPtrList<QListViewItem>, QListViewItem*, int ) ) );
94 connect( myView, SIGNAL( selectionChanged() ), this, SIGNAL( selectionChanged() ) );
96 setRootObject( root );
99 OB_Browser::~OB_Browser()
105 bool OB_Browser::rootIsDecorated() const
107 return myRootDecorated;
110 void OB_Browser::setRootIsDecorated( const bool decor )
112 if ( decor == rootIsDecorated() )
115 myRootDecorated = decor;
119 int OB_Browser::autoOpenLevel() const
121 return myAutoOpenLevel;
124 void OB_Browser::setAutoOpenLevel( const int level )
126 if ( myAutoOpenLevel == level )
129 myAutoOpenLevel = level;
134 bool OB_Browser::isShowToolTips()
136 return myShowToolTips;
139 void OB_Browser::setShowToolTips( const bool theDisplay )
141 myShowToolTips = theDisplay;
144 bool OB_Browser::isAutoUpdate() const
149 void OB_Browser::setAutoUpdate( const bool on )
154 bool OB_Browser::isAutoDeleteObjects() const
156 return myAutoDelObjs;
159 void OB_Browser::setAutoDeleteObjects( const bool on )
164 SUIT_DataObject* OB_Browser::getRootObject() const
169 void OB_Browser::setRootObject( SUIT_DataObject* theRoot )
171 DataObjectKey curKey;
172 DataObjectMap selObjs, openObjs;
173 DataObjectKeyMap selKeys, openKeys;
175 int selNum = numberOfSelected();
177 SUIT_DataObject* curObj = 0;
179 curObj = storeState( selObjs, openObjs, selKeys, openKeys, curKey );
181 if ( myRoot != theRoot && isAutoDeleteObjects() )
186 createConnections( myRoot );
189 updateView( myRoot );
190 else if ( getListView() )
193 getListView()->clear();
196 restoreState( selObjs, openObjs, curObj, selKeys, openKeys, curKey );
200 if ( selNum != numberOfSelected() )
201 emit selectionChanged();
204 int OB_Browser::numberOfSelected() const
209 for ( QListViewItemIterator it( getListView() ); it.current(); ++it )
210 if ( it.current()->isSelected() )
216 DataObjectList OB_Browser::getSelected() const
223 void OB_Browser::getSelected( DataObjectList& theObjList ) const
227 if ( !getListView() )
230 for ( QListViewItemIterator it( getListView() ); it.current(); ++it )
232 if ( it.current()->isSelected() )
234 SUIT_DataObject* obj = dataObject( it.current() );
236 theObjList.append( obj );
241 void OB_Browser::setSelected( const SUIT_DataObject* theObject, const bool append )
244 lst.append( theObject );
245 setSelected( lst, append );
248 void OB_Browser::setSelected( const DataObjectList& theObjLst, const bool append )
250 QListView* lv = getListView();
255 bool changed = false;
256 bool block = lv->signalsBlocked();
257 lv->blockSignals( true );
259 QMap<QListViewItem*, int> map;
260 for ( DataObjectListIterator itr( theObjLst ); itr.current(); ++itr )
261 map.insert( listViewItem( itr.current() ), 0 );
263 for ( QListViewItemIterator it( lv ); it.current(); ++it )
265 QListViewItem* item = it.current();
266 if ( map.contains( item ) && !lv->isSelected( item ) )
269 lv->setSelected( item, true );
271 if ( !append && !map.contains( item ) && lv->isSelected( item ) )
274 lv->setSelected( item, false );
278 lv->blockSignals( block );
283 QListViewItem* sel = 0;
284 QListViewItem* cur = lv->currentItem();
285 for ( QListViewItemIterator iter( lv ); iter.current() && !sel; ++iter, count++ )
287 if ( iter.current()->isSelected() && cur == iter.current() )
288 sel = iter.current();
291 for ( QListViewItemIterator itr( lv ); itr.current() && !sel; ++itr )
293 if ( itr.current()->isSelected() )
298 lv->setCurrentItem( sel );
300 if ( sel && count == 1 )
301 lv->ensureItemVisible( sel );
303 emit selectionChanged();
307 bool OB_Browser::isOpen( SUIT_DataObject* theObject ) const
311 res = getListView()->isOpen( listViewItem( theObject ) );
315 void OB_Browser::setOpen( SUIT_DataObject* theObject, const bool theOpen )
318 getListView()->setOpen( listViewItem( theObject ), theOpen );
321 SUIT_DataObject* OB_Browser::dataObjectAt( const QPoint& pos ) const
323 SUIT_DataObject* obj = 0;
325 QListView* lv = getListView();
327 obj = dataObject( lv->itemAt( pos ) );
332 OB_Filter* OB_Browser::filter() const
334 return myView->filter();
337 void OB_Browser::setFilter( OB_Filter* f )
339 myView->setFilter( f );
342 int OB_Browser::addColumn( const QString & label, int width, int index )
347 if ( index != -1 && myColumnIds.contains( index ) )
348 return id; // can not reuse index
351 id = myView->addColumn( label, width );
354 myColumnIds.insert( trueId, id );
360 int OB_Browser::addColumn( const QIconSet & iconset, const QString & label, int width, int index )
365 if ( index != -1 && myColumnIds.contains( index ) )
366 return id; // can not reuse index
369 id = myView->addColumn( iconset, label, width );
372 myColumnIds.insert( trueId, id );
378 void OB_Browser::removeColumn( int index )
380 if ( !myView || !myColumnIds.contains( index ) )
383 int id = myColumnIds[ index ];
384 myView->removeColumn( id );
386 // update map of column indeces
387 myColumnIds.remove( index );
388 for ( QMap<int, int>::iterator it = myColumnIds.begin(); it != myColumnIds.end(); ++it )
390 if ( it.key() > index )
396 void OB_Browser::updateTree( SUIT_DataObject* o )
398 SUIT_DataObject* obj = o ? o : getRootObject();
402 DataObjectKey curKey;
403 DataObjectMap selObjs, openObjs;
404 DataObjectKeyMap selKeys, openKeys;
406 int selNum = numberOfSelected();
408 SUIT_DataObject* curObj = storeState( selObjs, openObjs, selKeys, openKeys, curKey );
410 createConnections( obj );
413 restoreState( selObjs, openObjs, curObj, selKeys, openKeys, curKey );
417 if ( selNum != numberOfSelected() )
418 emit selectionChanged();
421 void OB_Browser::replaceTree( SUIT_DataObject* src, SUIT_DataObject* trg )
423 if ( !src || !trg || src->root() != getRootObject() )
426 DataObjectKey curKey;
427 DataObjectMap selObjs, openObjs;
428 DataObjectKeyMap selKeys, openKeys;
430 int selNum = numberOfSelected();
432 SUIT_DataObject* curObj = storeState( selObjs, openObjs, selKeys, openKeys, curKey );
434 SUIT_DataObject* parent = src->parent();
435 int pos = parent ? parent->childPos( src ) : -1;
439 if ( src != trg && isAutoDeleteObjects() )
442 if ( parent && pos != -1 )
443 parent->insertChild( trg, pos );
445 trg->setParent( parent );
447 createConnections( trg );
450 restoreState( selObjs, openObjs, curObj, selKeys, openKeys, curKey );
454 if ( selNum != numberOfSelected() )
455 emit selectionChanged();
458 void OB_Browser::updateView( const SUIT_DataObject* theStartObj )
460 QListView* lv = getListView();
464 if ( !theStartObj || theStartObj->root() != getRootObject() )
467 QListViewItem* after = 0;
468 QListViewItem* parent = 0;
469 QListViewItem* startItem = listViewItem( theStartObj );
471 if ( theStartObj->parent() )
472 parent = listViewItem( theStartObj->parent() );
474 QListViewItem* prv = 0;
475 QListViewItem* cur = parent ? parent->firstChild() : lv->firstChild();
476 while ( !after && cur )
478 if ( cur == startItem )
482 cur = cur->nextSibling();
485 QPtrList<QListViewItem> delList;
486 if ( !startItem && theStartObj == getRootObject() )
488 for ( QListViewItem* item = lv->firstChild(); item; item = item->nextSibling() )
489 delList.append( item );
492 delList.append( startItem );
494 for ( QPtrListIterator<QListViewItem> it( delList ); it.current(); ++it )
496 removeReferences( it.current() );
500 // for myRoot object, if myShowRoot==false, then creating multiple top-level QListViewItem-s
501 // (which will correspond to myRoot's children = Modules).
502 if ( rootIsDecorated() && theStartObj == myRoot )
505 theStartObj->children( lst );
506 DataObjectListIterator it ( lst );
507 // iterating backward to preserve the order of elements in the tree
508 for ( it.toLast(); it.current(); --it )
509 createTree( it.current(), 0, 0 );
512 createTree( theStartObj, parent, after );
515 QListViewItem* OB_Browser::createTree( const SUIT_DataObject* obj,
516 QListViewItem* parent, QListViewItem* after )
521 QListViewItem* item = createItem( obj, parent, after );
524 obj->children( lst );
525 for ( DataObjectListIterator it ( lst ); it.current(); ++it )
526 createTree( it.current(), item );
531 QListViewItem* OB_Browser::createItem( const SUIT_DataObject* o,
532 QListViewItem* parent, QListViewItem* after )
534 QListView* lv = getListView();
539 QListViewItem* item = 0;
540 SUIT_DataObject* obj = (SUIT_DataObject*)o;
544 switch ( obj->checkType() )
546 case SUIT_DataObject::CheckBox:
547 type = QCheckListItem::CheckBox;
549 case SUIT_DataObject::RadioButton:
550 type = QCheckListItem::RadioButton;
556 if ( parent->childCount() && !after )
558 after = parent->firstChild();
559 while ( after->nextSibling() )
560 after = after->nextSibling();
566 item = new OB_ListItem( obj, parent, after );
568 item = new OB_CheckListItem( obj, parent, after, (QCheckListItem::Type)type );
573 item = new OB_ListItem( obj, parent );
575 item = new OB_CheckListItem( obj, parent, (QCheckListItem::Type)type );
581 item = new OB_ListItem( obj, lv );
583 item = new OB_CheckListItem( obj, lv, (QCheckListItem::Type)type );
586 myItems.insert( obj, item );
591 void OB_Browser::adjustWidth()
593 if ( !getListView() )
596 getListView()->setColumnWidth( 0, 0 );
597 if ( getListView()->firstChild() )
598 adjustWidth( getListView()->firstChild() );
601 void OB_Browser::adjustWidth( QListViewItem* item )
605 item->widthChanged( 0 );
606 if ( item->isOpen() )
607 adjustWidth( item->firstChild() );
608 item = item->nextSibling();
612 SUIT_DataObject* OB_Browser::dataObject( const QListViewItem* item ) const
614 SUIT_DataObject* obj = 0;
616 if ( item && item->rtti() == OB_ListItem::RTTI() )
617 obj = ((OB_ListItem*)item)->dataObject();
618 else if ( item && item->rtti() == OB_CheckListItem::RTTI() )
619 obj = ((OB_CheckListItem*)item)->dataObject();
624 QListViewItem* OB_Browser::listViewItem( const SUIT_DataObject* obj ) const
626 QListViewItem* item = 0;
628 if ( myItems.contains( (SUIT_DataObject*)obj ) )
629 item = myItems[(SUIT_DataObject*)obj];
634 QListView* OB_Browser::getListView() const
639 void OB_Browser::removeReferences( QListViewItem* item )
644 SUIT_DataObject* obj = dataObject( item );
645 myItems.remove( obj );
647 QListViewItem* i = item->firstChild();
650 removeReferences( i );
651 i = i->nextSibling();
655 void OB_Browser::createConnections( SUIT_DataObject* obj )
660 DataObjectList childList;
661 obj->children( childList, true );
663 childList.prepend( obj );
665 for ( DataObjectListIterator it( childList ); it.current(); ++it )
666 it.current()->connect( this, SLOT( onDestroyed( SUIT_DataObject* ) ) );
669 SUIT_DataObject* OB_Browser::storeState( DataObjectMap& selObjs, DataObjectMap& openObjs,
670 DataObjectKeyMap& selKeys, DataObjectKeyMap& openKeys,
671 DataObjectKey& curKey ) const
673 QListView* lv = getListView();
677 SUIT_DataObject* curObj = dataObject( lv->currentItem() );
679 curKey = objectKey( curObj );
681 for ( QListViewItemIterator it( lv ); it.current(); ++it )
683 SUIT_DataObject* obj = dataObject( it.current() );
687 selObjs.insert( obj, lv->isSelected( it.current() ) );
688 openObjs.insert( obj, lv->isOpen( it.current() ) );
689 if ( lv->isSelected( it.current() ) )
690 selKeys.insert( objectKey( obj ), 0 );
691 if ( lv->isOpen( it.current() ) )
692 openKeys.insert( objectKey( obj ), 0 );
698 void OB_Browser::restoreState( const DataObjectMap& selObjs, const DataObjectMap& openObjs,
699 const SUIT_DataObject* curObj, const DataObjectKeyMap& selKeys,
700 const DataObjectKeyMap& openKeys, const DataObjectKey& curKey )
702 QListView* lv = getListView();
706 bool block = lv->signalsBlocked();
707 lv->blockSignals( true );
709 QListViewItem* curItem = 0;
710 for ( QListViewItemIterator it( lv ); it.current(); ++it )
712 QListViewItem* item = it.current();
713 SUIT_DataObject* obj = dataObject( item );
718 DataObjectKey key = objectKey( obj );
720 if ( selObjs.contains( obj ) )
722 if ( selObjs[obj] && !lv->isSelected( item ) )
723 lv->setSelected( item, true );
725 else if ( !key.isNull() && selKeys.contains( key ) && !lv->isSelected( item ) )
726 lv->setSelected( item, true );
728 if ( openObjs.contains( obj ) )
731 lv->setOpen( item, true );
733 else if ( !key.isNull() && openKeys.contains( key ) )
734 lv->setOpen( item, true );
736 if ( !curItem && ( curObj == obj || ( !curKey.isNull() && curKey == key )) )
741 lv->setCurrentItem( curItem );
743 lv->blockSignals( block );
746 OB_Browser::DataObjectKey OB_Browser::objectKey( QListViewItem* i ) const
748 return objectKey( dataObject( i ) );
751 OB_Browser::DataObjectKey OB_Browser::objectKey( SUIT_DataObject* obj ) const
756 return DataObjectKey( obj->key() );
759 void OB_Browser::keyPressEvent( QKeyEvent* e )
761 if ( e->key() == Qt::Key_F5 )
764 QFrame::keyPressEvent( e );
767 void OB_Browser::onExpand()
769 DataObjectList selected;
770 getSelected( selected );
771 for ( DataObjectListIterator itr( selected ); itr.current(); ++itr )
772 expand( listViewItem( itr.current() ) );
775 void OB_Browser::onRefresh()
780 void OB_Browser::onDestroyed( SUIT_DataObject* obj )
785 void OB_Browser::onDropped( QPtrList<QListViewItem> items, QListViewItem* item, int action )
787 SUIT_DataObject* obj = dataObject( item );
792 for ( QPtrListIterator<QListViewItem> it( items ); it.current(); ++it )
794 SUIT_DataObject* o = dataObject( it.current() );
799 if ( !lst.isEmpty() )
800 emit dropped( lst, obj, action );
803 void OB_Browser::updateText()
808 if ( myColumnIds.size() )
810 QListViewItemIterator it( myView );
811 for ( ; it.current() != 0; ++it )
813 QListViewItem* item = it.current();
814 SUIT_DataObject* obj = dataObject( item );
817 QMap<int, int>::iterator it = myColumnIds.begin();
818 for( ; it != myColumnIds.end(); ++it )
819 item->setText( it.data(), obj->text( it.key() ) );
825 bool OB_Browser::eventFilter(QObject* watched, QEvent* e)
827 if ( watched == myView && e->type() == QEvent::ContextMenu )
829 contextMenuRequest( (QContextMenuEvent*)e );
832 return QFrame::eventFilter(watched, e);
835 void OB_Browser::contextMenuPopup( QPopupMenu* menu )
837 DataObjectList selected;
838 getSelected( selected );
841 for ( DataObjectListIterator itr( selected ); itr.current() && !closed; ++itr )
842 closed = hasClosed( listViewItem( itr.current() ) );
846 menu->insertItem( tr( "MEN_EXPAND_ALL" ), this, SLOT( onExpand() ) );
847 menu->insertSeparator();
849 menu->insertItem( tr( "MEN_REFRESH" ), this, SLOT( onRefresh() ) );
852 void OB_Browser::expand( QListViewItem* item )
857 item->setOpen( true );
858 for ( QListViewItem* child = item->firstChild(); child; child = child->nextSibling() )
862 bool OB_Browser::hasClosed( QListViewItem* item ) const
867 if ( item->childCount() && !item->isOpen() )
871 for ( QListViewItem* child = item->firstChild(); child && !has; child = child->nextSibling() )
872 has = hasClosed( child );
877 void OB_Browser::removeObject( SUIT_DataObject* obj, const bool autoUpd )
882 // Removing list view items from <myItems> recursively for all children.
883 // Otherwise, "delete item" line will destroy all item's children,
884 // and <myItems> will contain invalid pointers (see ~QListViewItem() description in Qt docs)
885 DataObjectList childList;
886 obj->children( childList );
887 for ( DataObjectListIterator it( childList ); it.current(); ++it )
888 removeObject( it.current(), false );
890 QListViewItem* item = listViewItem( obj );
892 myItems.remove( obj );
900 if ( isAutoUpdate() )
902 SUIT_DataObject* pObj = item && item->parent() ? dataObject( item->parent() ) : 0;
909 void OB_Browser::autoOpenBranches()
911 int level = autoOpenLevel();
912 QListView* lv = getListView();
913 if ( !lv || level < 1 )
916 QListViewItem* item = lv->firstChild();
919 openBranch( item, level );
920 item = item->nextSibling();
924 void OB_Browser::openBranch( QListViewItem* item, const int level )
926 if ( !item || level < 1 || !item->childCount() )
929 item->setOpen( true );
932 openBranch( item, level - 1 );
933 item = item->nextSibling();