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# kcompletion.cpp

    00001 /* This file is part of the KDE libraries
    00002     Copyright (C) 1999,2000,2001 Carsten Pfeiffer <pfeiffer@kde.org>
    00003
    00004     This library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License as published by the Free Software Foundation; either
    00007     version 2 of the License, or (at your option) any later version.
    00008
    00009     This library is distributed in the hope that it will be useful,
    00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012     Library General Public License for more details.
    00013
    00014     You should have received a copy of the GNU Library General Public License
    00015     along with this library; see the file COPYING.LIB.  If not, write to
    00016     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00017     Boston, MA 02111-1307, USA.
    00018 */
    00019
    00020
    00021 #include <kapplication.h>
    00022 #include <kdebug.h>
    00023 #include <klocale.h>
    00024 #include <knotifyclient.h>
    00025 #include <kglobal.h>
    00026
    00027 #include "kcompletion.h"
    00028 #include "kcompletion_private.h"
    00029
    00030
    00031 class KCompletionPrivate
    00032 {
    00033 public:
    00034     // not a member to avoid #including kcompletion_private.h from kcompletion.h
    00035     // list used for nextMatch() and previousMatch()
    00036     KCompletionMatchesWrapper matches;
    00037 };
    00038
    00039 KCompletion::KCompletion()
    00040 {
    00041     d = new KCompletionPrivate;
    00042
    00043     myCompletionMode = KGlobalSettings::completionMode();
    00044     myTreeRoot = new KCompTreeNode;
    00045     myBeep       = true;
    00046     myIgnoreCase = false;
    00047     myHasMultipleMatches = false;
    00048     myRotationIndex = 0;
    00049     setOrder( Insertion );
    00050 }
    00051
    00052 KCompletion::~KCompletion()
    00053 {
    00054     delete d;
    00055     delete myTreeRoot;
    00056 }
    00057
    00058 void KCompletion::setOrder( CompOrder order )
    00059 {
    00060     myOrder = order;
    00061     d->matches.setSorting( order == Weighted );
    00062 }
    00063
    00064 void KCompletion::setIgnoreCase( bool ignoreCase )
    00065 {
    00066     myIgnoreCase = ignoreCase;
    00067 }
    00068
    00069 void KCompletion::setItems( const QStringList& items )
    00070 {
    00071     clear();
    00072     insertItems( items );
    00073 }
    00074
    00075
    00076 void KCompletion::insertItems( const QStringList& items )
    00077 {
    00078     bool weighted = (myOrder == Weighted);
    00079     QStringList::ConstIterator it;
    00080     if ( weighted ) { // determine weight
    00081         for ( it = items.begin(); it != items.end(); ++it )
    00082             addWeightedItem( *it );
    00083     }
    00084     else {
    00085         for ( it = items.begin(); it != items.end(); ++it )
    00086             addItem( *it, 0 );
    00087     }
    00088 }
    00089
    00090
    00091 QStringList KCompletion::items() const
    00092 {
    00093     KCompletionMatchesWrapper list; // unsorted
    00094     bool addWeight = (myOrder == Weighted);
    00095     extractStringsFromNode( myTreeRoot, QString::null, &list, addWeight );
    00096
    00097     return list.list();
    00098 }
    00099
    00100
    00101 void KCompletion::addItem( const QString& item )
    00102 {
    00103     d->matches.clear();
    00104     myRotationIndex = 0;
    00105     myLastString = QString::null;
    00106
    00107     addItem( item, 0 );
    00108 }
    00109
    00110 void KCompletion::addItem( const QString& item, uint weight )
    00111 {
    00112     if ( item.isEmpty() )
    00113         return;
    00114
    00115     KCompTreeNode *node = myTreeRoot;
    00116     uint len = item.length();
    00117
    00118     bool sorted = (myOrder == Sorted);
    00119     bool weighted = ((myOrder == Weighted) && weight > 1);
    00120
    00121     // knowing the weight of an item, we simply add this weight to all of its
    00122     // nodes.
    00123
    00124     for ( uint i = 0; i < len; i++ ) {
    00125         node = node->insert( item.at(i), sorted );
    00126         if ( weighted )
    00127             node->confirm( weight -1 ); // node->insert() sets weighting to 1
    00128     }
    00129
    00130     // add 0x0-item as delimiter with evtl. weight
    00131     node = node->insert( 0x0, true );
    00132     if ( weighted )
    00133         node->confirm( weight -1 );
    00134 //     qDebug("*** added: %s (%i)", item.latin1(), node->weight());
    00135 }
    00136
    00137 void KCompletion::addWeightedItem( const QString& item )
    00138 {
    00139     if ( myOrder != Weighted ) {
    00140         addItem( item, 0 );
    00141         return;
    00142     }
    00143
    00144     uint len = item.length();
    00145     uint weight = 0;
    00146
    00147     // find out the weighting of this item (appended to the string as ":num")
    00148     int index = item.findRev(':');
    00149     if ( index > 0 ) {
    00150         bool ok;
    00151         weight = item.mid( index + 1 ).toUInt( &ok );
    00152         if ( !ok )
    00153             weight = 0;
    00154
    00155         len = index; // only insert until the ':'
    00156     }
    00157
    00158     addItem( item.left( len ), weight );
    00159     return;
    00160 }
    00161
    00162
    00163 void KCompletion::removeItem( const QString& item )
    00164 {
    00165     d->matches.clear();
    00166     myRotationIndex = 0;
    00167     myLastString = QString::null;
    00168
    00169     myTreeRoot->remove( item );
    00170 }
    00171
    00172
    00173 void KCompletion::clear()
    00174 {
    00175     d->matches.clear();
    00176     myRotationIndex = 0;
    00177     myLastString = QString::null;
    00178
    00179     delete myTreeRoot;
    00180     myTreeRoot = new KCompTreeNode;
    00181 }
    00182
    00183
    00184 QString KCompletion::makeCompletion( const QString& string )
    00185 {
    00186     if ( myCompletionMode == KGlobalSettings::CompletionNone )
    00187         return QString::null;
    00188
    00189     //kdDebug(0) << "KCompletion: completing: " << string << endl;
    00190
    00191     d->matches.clear();
    00192     myRotationIndex = 0;
    00193     myHasMultipleMatches = false;
    00194     myLastMatch = myCurrentMatch;
    00195
    00196     // in Shell-completion-mode, emit all matches when we get the same
    00197     // complete-string twice
    00198     if ( myCompletionMode == KGlobalSettings::CompletionShell &&
    00199          string == myLastString ) {
    00200         // Don't use d->matches since calling postProcessMatches()
    00201         // on d->matches here would interfere with call to
    00202         // postProcessMatch() during rotation
    00203
    00204         findAllCompletions( string, &d->matches, myHasMultipleMatches );
    00205         QStringList l = d->matches.list();
    00206         postProcessMatches( &l );
    00207         emit matches( l );
    00208
    00209         if ( l.isEmpty() )
    00210             doBeep( NoMatch );
    00211
    00212         return QString::null;
    00213     }
    00214
    00215     QString completion;
    00216     // in case-insensitive popup mode, we search all completions at once
    00217     if ( myCompletionMode == KGlobalSettings::CompletionPopup ||
    00218          myCompletionMode == KGlobalSettings::CompletionPopupAuto ) {
    00219         findAllCompletions( string, &d->matches, myHasMultipleMatches );
    00220         if ( !d->matches.isEmpty() )
    00221             completion = d->matches.first();
    00222     }
    00223     else
    00224         completion = findCompletion( string );
    00225
    00226     if ( myHasMultipleMatches )
    00227         emit multipleMatches();
    00228
    00229     myLastString = string;
    00230     myCurrentMatch = completion;
    00231
    00232     postProcessMatch( &completion );
    00233
    00234     if ( !string.isEmpty() ) { // only emit match when string != ""
    00235         //kdDebug(0) << "KCompletion: Match: " << completion << endl;
    00236         emit match( completion );
    00237     }
    00238
    00239     if ( completion.isNull() )
    00240         doBeep( NoMatch );
    00241
    00242     return completion;
    00243 }
    00244
    00245
    00246 QStringList KCompletion::substringCompletion( const QString& string ) const
    00247 {
    00248     // get all items in the tree, eventually in sorted order
    00249     bool sorted = (myOrder == Weighted);
    00250     KCompletionMatchesWrapper allItems( sorted );
    00251     extractStringsFromNode( myTreeRoot, QString::null, &allItems, false );
    00252
    00253     QStringList list = allItems.list();
    00254
    00255     // subStringMatches is invoked manually, via a shortcut, so we should
    00256     // beep here, if necessary.
    00257     if ( list.isEmpty() ) {
    00258         doBeep( NoMatch );
    00259         return list;
    00260     }
    00261
    00262     if ( string.isEmpty() ) { // shortcut
    00263         postProcessMatches( &list );
    00264         return list;
    00265     }
    00266
    00267     QStringList matches;
    00268     QStringList::ConstIterator it = list.begin();
    00269
    00270     for( ; it != list.end(); ++it ) {
    00271         QString item = *it;
    00272         if ( item.find( string, 0, false ) != -1 ) { // always case insensitive
    00273             postProcessMatch( &item );
    00274             matches.append( item );
    00275         }
    00276     }
    00277
    00278     if ( matches.isEmpty() )
    00279         doBeep( NoMatch );
    00280
    00281     return matches;
    00282 }
    00283
    00284
    00285 void KCompletion::setCompletionMode( KGlobalSettings::Completion mode )
    00286 {
    00287     myCompletionMode = mode;
    00288 }
    00289
    00290
    00291 QStringList KCompletion::allMatches()
    00292 {
    00293     // Don't use d->matches since calling postProcessMatches()
    00294     // on d->matches here would interfere with call to
    00295     // postProcessMatch() during rotation
    00296     KCompletionMatchesWrapper matches( myOrder == Weighted );
    00297     bool dummy;
    00298     findAllCompletions( myLastString, &matches, dummy );
    00299     QStringList l = matches.list();
    00300     postProcessMatches( &l );
    00301     return l;
    00302 }
    00303
    00304 KCompletionMatches KCompletion::allWeightedMatches()
    00305 {
    00306     // Don't use d->matches since calling postProcessMatches()
    00307     // on d->matches here would interfere with call to
    00308     // postProcessMatch() during rotation
    00309     KCompletionMatchesWrapper matches( myOrder == Weighted );
    00310     bool dummy;
    00311     findAllCompletions( myLastString, &matches, dummy );
    00312     KCompletionMatches ret( matches );
    00313     postProcessMatches( &ret );
    00314     return ret;
    00315 }
    00316
    00317 QStringList KCompletion::allMatches( const QString &string )
    00318 {
    00319     KCompletionMatchesWrapper matches( myOrder == Weighted );
    00320     bool dummy;
    00321     findAllCompletions( string, &matches, dummy );
    00322     QStringList l = matches.list();
    00323     postProcessMatches( &l );
    00324     return l;
    00325 }
    00326
    00327 KCompletionMatches KCompletion::allWeightedMatches( const QString &string )
    00328 {
    00329     KCompletionMatchesWrapper matches( myOrder == Weighted );
    00330     bool dummy;
    00331     findAllCompletions( string, &matches, dummy );
    00332     KCompletionMatches ret( matches );
    00333     postProcessMatches( &ret );
    00334     return ret;
    00335 }
    00336
    00339
    00340
    00341 QString KCompletion::nextMatch()
    00342 {
    00343     QString completion;
    00344     myLastMatch = myCurrentMatch;
    00345
    00346     if ( d->matches.isEmpty() ) {
    00347         findAllCompletions( myLastString, &d->matches, myHasMultipleMatches );
    00348         completion = d->matches.first();
    00349         myCurrentMatch = completion;
    00350         myRotationIndex = 0;
    00351         postProcessMatch( &completion );
    00352         emit match( completion );
    00353         return completion;
    00354     }
    00355
    00356     QStringList matches = d->matches.list();
    00357     myLastMatch = matches[ myRotationIndex++ ];
    00358
    00359     if ( myRotationIndex == matches.count() -1 )
    00360         doBeep( Rotation ); // indicate last matching item -> rotating
    00361
    00362     else if ( myRotationIndex == matches.count() )
    00363         myRotationIndex = 0;
    00364
    00365     completion = matches[ myRotationIndex ];
    00366     myCurrentMatch = completion;
    00367     postProcessMatch( &completion );
    00368     emit match( completion );
    00369     return completion;
    00370 }
    00371
    00372
    00373
    00374 QString KCompletion::previousMatch()
    00375 {
    00376     QString completion;
    00377     myLastMatch = myCurrentMatch;
    00378
    00379     if ( d->matches.isEmpty() ) {
    00380         findAllCompletions( myLastString, &d->matches, myHasMultipleMatches );
    00381         completion = d->matches.last();
    00382         myCurrentMatch = completion;
    00383         myRotationIndex = 0;
    00384         postProcessMatch( &completion );
    00385         emit match( completion );
    00386         return completion;
    00387     }
    00388
    00389     QStringList matches = d->matches.list();
    00390     myLastMatch = matches[ myRotationIndex ];
    00391     if ( myRotationIndex == 1 )
    00392         doBeep( Rotation ); // indicate first item -> rotating
    00393
    00394     else if ( myRotationIndex == 0 )
    00395         myRotationIndex = matches.count();
    00396
    00397     myRotationIndex--;
    00398
    00399     completion = matches[ myRotationIndex ];
    00400     myCurrentMatch = completion;
    00401     postProcessMatch( &completion );
    00402     emit match( completion );
    00403     return completion;
    00404 }
    00405
    00406
    00407
    00408 // tries to complete "string" from the tree-root
    00409 QString KCompletion::findCompletion( const QString& string )
    00410 {
    00411     QChar ch;
    00412     QString completion;
    00413     const KCompTreeNode *node = myTreeRoot;
    00414
    00415     // start at the tree-root and try to find the search-string
    00416     for( uint i = 0; i < string.length(); i++ ) {
    00417         ch = string.at( i );
    00418         node = node->find( ch );
    00419
    00420         if ( node )
    00421             completion += ch;
    00422         else
    00423             return QString::null; // no completion
    00424     }
    00425
    00426     // Now we have the last node of the to be completed string.
    00427     // Follow it as long as it has exactly one child (= longest possible
    00428     // completion)
    00429
    00430     while ( node->childrenCount() == 1 ) {
    00431         node = node->firstChild();
    00432         if ( !node->isNull() )
    00433             completion += *node;
    00434     }
    00435     // if multiple matches and auto-completion mode
    00436     // -> find the first complete match
    00437     if ( node && node->childrenCount() > 1 ) {
    00438         myHasMultipleMatches = true;
    00439
    00440         if ( myCompletionMode == KGlobalSettings::CompletionAuto ) {
    00441             myRotationIndex = 1;
    00442             if (myOrder != Weighted) {
    00443                 while ( (node = node->firstChild()) ) {
    00444                     if ( !node->isNull() )
    00445                         completion += *node;
    00446                     else
    00447                         break;
    00448                 }
    00449             }
    00450             else {
    00451                 // don't just find the "first" match, but the one with the
    00452                 // highest priority
    00453
    00454                 const KCompTreeNode* temp_node = 0L;
    00455                 while(1) {
    00456                     int count = node->childrenCount();
    00457                     temp_node = node->firstChild();
    00458                     uint weight = temp_node->weight();
    00459                     const KCompTreeNode* hit = temp_node;
    00460                     for( int i = 1; i < count; i++ ) {
    00461                         temp_node = node->childAt(i);
    00462                         if( temp_node->weight() > weight ) {
    00463                             hit = temp_node;
    00464                             weight = hit->weight();
    00465                         }
    00466                     }
    00467                     // 0x0 has the highest priority -> we have the best match
    00468                     if ( hit->isNull() )
    00469                         break;
    00470
    00471                     node = hit;
    00472                     completion += *node;
    00473                 }
    00474             }
    00475         }
    00476
    00477         else
    00478             doBeep( PartialMatch ); // partial match -> beep
    00479     }
    00480
    00481     return completion;
    00482 }
    00483
    00484
    00485 void KCompletion::findAllCompletions(const QString& string,
    00486                                      KCompletionMatchesWrapper *matches,
    00487                                      bool& hasMultipleMatches) const
    00488 {
    00489     //kdDebug(0) << "*** finding all completions for " << string << endl;
    00490
    00491     if ( string.isEmpty() )
    00492         return;
    00493
    00494     if ( myIgnoreCase ) { // case insensitive completion
    00495         extractStringsFromNodeCI( myTreeRoot, QString::null, string, matches );
    00496         hasMultipleMatches = (matches->count() > 1);
    00497         return;
    00498     }
    00499
    00500     QChar ch;
    00501     QString completion;
    00502     const KCompTreeNode *node = myTreeRoot;
    00503
    00504     // start at the tree-root and try to find the search-string
    00505     for( uint i = 0; i < string.length(); i++ ) {
    00506         ch = string.at( i );
    00507         node = node->find( ch );
    00508
    00509         if ( node )
    00510             completion += ch;
    00511         else
    00512             return; // no completion -> return empty list
    00513     }
    00514
    00515     // Now we have the last node of the to be completed string.
    00516     // Follow it as long as it has exactly one child (= longest possible
    00517     // completion)
    00518
    00519     while ( node->childrenCount() == 1 ) {
    00520         node = node->firstChild();
    00521         if ( !node->isNull() )
    00522             completion += *node;
    00523         // kdDebug() << completion << node->latin1();
    00524     }
    00525
    00526
    00527     // there is just one single match)
    00528     if ( node->childrenCount() == 0 )
    00529         matches->append( node->weight(), completion );
    00530
    00531     else {
    00532         // node has more than one child
    00533         // -> recursively find all remaining completions
    00534         hasMultipleMatches = true;
    00535         extractStringsFromNode( node, completion, matches );
    00536     }
    00537 }
    00538
    00539
    00540 void KCompletion::extractStringsFromNode( const KCompTreeNode *node,
    00541                                           const QString& beginning,
    00542                                           KCompletionMatchesWrapper *matches,
    00543                                           bool addWeight ) const
    00544 {
    00545     if ( !node || !matches )
    00546         return;
    00547
    00548     // kDebug() << "Beginning: " << beginning << endl;
    00549     const KCompTreeChildren *list = node->children();
    00550     QString string;
    00551     QString w;
    00552
    00553     // loop thru all children
    00554     for ( KCompTreeNode *cur = list->begin(); cur ; cur = cur->next) {
    00555         string = beginning;
    00556         node = cur;
    00557         if ( !node->isNull() )
    00558             string += *node;
    00559
    00560         while ( node && node->childrenCount() == 1 ) {
    00561             node = node->firstChild();
    00562             if ( node->isNull() )
    00563                 break;
    00564             string += *node;
    00565         }
    00566
    00567         if ( node && node->isNull() ) { // we found a leaf
    00568             if ( addWeight ) {
    00569                 // add ":num" to the string to store the weighting
    00570                 string += ':';
    00571                 w.setNum( node->weight() );
    00572                 string.append( w );
    00573             }
    00574             matches->append( node->weight(), string );
    00575         }
    00576
    00577         // recursively find all other strings.
    00578         if ( node && node->childrenCount() > 1 )
    00579             extractStringsFromNode( node, string, matches, addWeight );
    00580     }
    00581 }
    00582
    00583 void KCompletion::extractStringsFromNodeCI( const KCompTreeNode *node,
    00584                                             const QString& beginning,
    00585                                             const QString& restString,
    00586                                       KCompletionMatchesWrapper *matches ) const
    00587 {
    00588     if ( restString.isEmpty() ) {
    00589         extractStringsFromNode( node, beginning, matches, false /*noweight*/ );
    00590         return;
    00591     }
    00592
    00593     QChar ch1 = restString.at(0);
    00594     QString newRest = restString.mid(1);
    00595     KCompTreeNode *child1, *child2;
    00596
    00597     child1 = node->find( ch1 ); // the correct match
    00598     if ( child1 )
    00599         extractStringsFromNodeCI( child1, beginning + *child1, newRest,
    00600                                   matches );
    00601
    00602     // append the case insensitive matches, if available
    00603     if ( ch1.isLetter() ) {
    00604         // find out if we have to lower or upper it. Is there a better way?
    00605         QChar ch2 = ch1.lower();
    00606         if ( ch1 == ch2 )
    00607             ch2 = ch1.upper();
    00608         if ( ch1 != ch2 ) {
    00609             child2 = node->find( ch2 );
    00610             if ( child2 )
    00611                 extractStringsFromNodeCI( child2, beginning + *child2, newRest,
    00612                                           matches );
    00613         }
    00614     }
    00615 }
    00616
    00617
    00618 void KCompletion::doBeep( BeepMode mode ) const
    00619 {
    00620     if ( !myBeep )
    00621         return;
    00622
    00623     QString text, event;
    00624
    00625     switch ( mode ) {
    00626     case Rotation:
    00627         event = QString::fromLatin1("Textcompletion: rotation");
    00628         text = i18n("You reached the end of the list\nof matching items.\n");
    00629         break;
    00630     case PartialMatch:
    00631         if ( myCompletionMode == KGlobalSettings::CompletionShell ||
    00632              myCompletionMode == KGlobalSettings::CompletionMan ) {
    00633             event = QString::fromLatin1("Textcompletion: partial match");
    00634             text = i18n("The completion is ambiguous, more than one\nmatch is available.\n");
    00635         }
    00636         break;
    00637     case NoMatch:
    00638         if ( myCompletionMode == KGlobalSettings::CompletionShell ) {
    00639             event = QString::fromLatin1("Textcompletion: no match");
    00640             text = i18n("There is no matching item available.\n");
    00641         }
    00642         break;
    00643     }
    00644
    00645     if ( !text.isEmpty() )
    00646         KNotifyClient::event( event, text );
    00647 }
    00648
    00649
    00652
    00653
    00654 // Implements the tree. Every node is a QChar and has a list of children, which
    00655 // are Nodes as well.
    00656 // QChar( 0x0 ) is used as the delimiter of a string; the last child of each
    00657 // inserted string is 0x0.
    00658
    00659 KCompTreeNode::~KCompTreeNode()
    00660 {
    00661     // delete all children
    00662     KCompTreeNode *cur = myChildren.begin();
    00663     while (cur) {
    00664         KCompTreeNode * next = cur->next;
    00665         delete myChildren.remove(cur);
    00666         cur = next;
    00667     }
    00668 }
    00669
    00670
    00671 // Adds a child-node "ch" to this node. If such a node is already existant,
    00672 // it will not be created. Returns the new/existing node.
    00673 KCompTreeNode * KCompTreeNode::insert( const QChar& ch, bool sorted )
    00674 {
    00675     KCompTreeNode *child = find( ch );
    00676     if ( !child ) {
    00677         child = new KCompTreeNode( ch );
    00678
    00679         // FIXME, first (slow) sorted insertion implementation
    00680         if ( sorted ) {
    00681             KCompTreeNode * prev = 0;
    00682             KCompTreeNode * cur = myChildren.begin();
    00683             while ( cur ) {
    00684                 if ( ch > *cur ) {
    00685                     prev = cur;
    00686                     cur = cur->next;
    00687                 } else
    00688                     break;
    00689             }
    00690             if (prev)
    00691                 myChildren.insert( prev, child );
    00692             else
    00693                 myChildren.prepend(child);
    00694         }
    00695
    00696         else
    00697             myChildren.append( child );
    00698     }
    00699
    00700     // implicit weighting: the more often an item is inserted, the higher
    00701     // priority it gets.
    00702     child->confirm();
    00703
    00704     return child;
    00705 }
    00706
    00707
    00708 // Recursively removes a string from the tree (untested :-)
    00709 void KCompTreeNode::remove( const QString& string )
    00710 {
    00711     KCompTreeNode *child = 0L;
    00712
    00713     if ( string.isEmpty() ) {
    00714         child = find( 0x0 );
    00715         delete myChildren.remove( child );
    00716         return;
    00717     }
    00718
    00719     QChar ch = string.at(0);
    00720     child = find( ch );
    00721     if ( child ) {
    00722         child->remove( string.right( string.length() -1 ) );
    00723         if ( child->myChildren.count() == 0 ) {
    00724             delete myChildren.remove( child );
    00725         }
    00726     }
    00727 }
    00728
    00729 QStringList KCompletionMatchesWrapper::list() const {
    00730     if ( sortedList && dirty ) {
    00731         sortedList->sort();
    00732         dirty = false;
    00733
    00734         stringList.clear();
    00735
    00736         // high weight == sorted last -> reverse the sorting here
    00737         QValueListConstIterator<KSortableItem<QString> > it;
    00738         for ( it = sortedList->begin(); it != sortedList->end(); ++it )
    00739             stringList.prepend( (*it).value() );
    00740     }
    00741
    00742     return stringList;
    00743 }
    00744
    00745 KCompletionMatches::KCompletionMatches( bool sort_P )
    00746     : _sorting( sort_P )
    00747 {
    00748 }
    00749
    00750 KCompletionMatches::KCompletionMatches( const KCompletionMatchesWrapper& matches )
    00751     : _sorting( matches.sorting())
    00752 {
    00753     if( matches.sortedList != 0L )
    00754         KCompletionMatchesList::operator=( *matches.sortedList );
    00755     else {
    00756         QStringList l = matches.list();
    00757         for( QStringList::ConstIterator it = l.begin();
    00758              it != l.end();
    00759              ++it )
    00760             prepend( KSortableItem<QString, int>( 1, *it ) );
    00761     }
    00762 }
    00763
    00764 KCompletionMatches::~KCompletionMatches()
    00765 {
    00766 }
    00767
    00768 QStringList KCompletionMatches::list( bool sort_P ) const
    00769 {
    00770     if( _sorting && sort_P )
    00771         const_cast< KCompletionMatches* >( this )->sort();
    00772     QStringList stringList;
    00773     // high weight == sorted last -> reverse the sorting here
    00774     for ( ConstIterator it = begin(); it != end(); ++it )
    00775         stringList.prepend( (*it).value() );
    00776     return stringList;
    00777 }
    00778
    00779 void KCompletionMatches::removeDuplicates()
    00780 {
    00781     Iterator it1, it2;
    00782     for ( it1 = begin(); it1 != end(); ++it1 ) {
    00783         for ( (it2 = it1), ++it2; it2 != end();) {
    00784             if( (*it1).value() == (*it2).value()) {
    00785                 // use the max height
    00786                 (*it1).first = kMax( (*it1).index(), (*it2).index());
    00787                 it2 = remove( it2 );
    00788                 continue;
    00789             }
    00790             ++it2;
    00791         }
    00792     }
    00793 }
    00794
    00795 void KCompTreeNodeList::append(KCompTreeNode *item)
    00796 {
    00797     m_count++;
    00798     if (!last) {
    00799         last = item;
    00800         last->next = 0;
    00801         first = item;
    00802         return;
    00803     }
    00804     last->next = item;
    00805     item->next = 0;
    00806     last = item;
    00807 }
    00808
    00809 void KCompTreeNodeList::prepend(KCompTreeNode *item)
    00810 {
    00811     m_count++;
    00812     if (!last) {
    00813         last = item;
    00814         last->next = 0;
    00815         first = item;
    00816         return;
    00817     }
    00818     item->next = first;
    00819     first = item;
    00820 }
    00821
    00822 void KCompTreeNodeList::insert(KCompTreeNode *after, KCompTreeNode *item)
    00823 {
    00824     if (!after) {
    00825         append(item);
    00826         return;
    00827     }
    00828
    00829     m_count++;
    00830
    00831     item->next = after->next;
    00832     after->next = item;
    00833
    00834     if (after == last)
    00835         last = item;
    00836 }
    00837
    00838 KCompTreeNode *KCompTreeNodeList::remove(KCompTreeNode *item)
    00839 {
    00840     if (!first || !item)
    00841         return 0;
    00842     KCompTreeNode *cur = 0;
    00843
    00844     if (item == first)
    00845         first = first->next;
    00846     else {
    00847         cur = first;
    00848         while (cur && cur->next != item) cur = cur->next;
    00849         if (!cur)
    00850             return 0;
    00851         cur->next = item->next;
    00852     }
    00853     if (item == last)
    00854         last = cur;
    00855     m_count--;
    00856     return item;
    00857 }
    00858
    00859 KCompTreeNode *KCompTreeNodeList::at(uint index) const
    00860 {
    00861     KCompTreeNode *cur = first;
    00862     while (index-- && cur) cur = cur->next;
    00863     return cur;
    00864 }
    00865
    00866 KZoneAllocator KCompTreeNode::alloc(8192);
    00867
    00868 void KCompletion::virtual_hook( int, void* )
    00869 { /*BASE::virtual_hook( id, data );*/ }
    00870
    00871 void KCompletionBase::virtual_hook( int, void* )
    00872 { /*BASE::virtual_hook( id, data );*/ }
    00873
    00874 #include "kcompletion.moc"

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 12:46:22 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001