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# kxmlguifactory_p.cpp

    00001 /* This file is part of the KDE libraries
    00002    Copyright (C) 2001 Simon Hausmann <hausmann@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 #include "kxmlguifactory_p.h"
    00021 #include "kxmlguiclient.h"
    00022 #include "kxmlguibuilder.h"
    00023
    00024 #include <qwidget.h>
    00025
    00026 #include <kglobal.h>
    00027 #include <kdebug.h>
    00028
    00029 #include <assert.h>
    00030
    00031 using namespace KXMLGUI;
    00032
    00033 void ActionList::plug( QWidget *container, int index ) const
    00034 {
    00035     ActionListIt it( *this );
    00036     for (; it.current(); ++it )
    00037         it.current()->plug( container, index++ );
    00038 }
    00039
    00040 void ActionList::unplug( QWidget *container ) const
    00041 {
    00042     ActionListIt it( *this );
    00043     for (; it.current(); ++it )
    00044         it.current()->unplug( container );
    00045 }
    00046
    00047 ContainerNode::ContainerNode( QWidget *_container, const QString &_tagName,
    00048                               const QString &_name, ContainerNode *_parent,
    00049                               KXMLGUIClient *_client, KXMLGUIBuilder *_builder,
    00050                               int id, const QString &_mergingName,
    00051                               const QString &_groupName, const QStringList &customTags,
    00052                               const QStringList &containerTags )
    00053     : parent( _parent ), client( _client ), builder( _builder ),
    00054       builderCustomTags( customTags ), builderContainerTags( containerTags ),
    00055       container( _container ), containerId( id ), tagName( _tagName ), name( _name ),
    00056       groupName( _groupName ), index( 0 ), mergingName( _mergingName )
    00057 {
    00058     children.setAutoDelete( true );
    00059     clients.setAutoDelete( true );
    00060
    00061     if ( parent )
    00062         parent->children.append( this );
    00063 }
    00064
    00065 void ContainerNode::removeChild( ContainerNode *child )
    00066 {
    00067     MergingIndexList::Iterator mergingIt = findIndex( child->mergingName );
    00068     adjustMergingIndices( -1, mergingIt );
    00069     children.removeRef( child );
    00070 }
    00071
    00072 /*
    00073  * Find a merging index with the given name. Used to find an index defined by <Merge name="blah"/>
    00074  * or by a <DefineGroup name="foo" /> tag.
    00075  */
    00076 MergingIndexList::Iterator ContainerNode::findIndex( const QString &name )
    00077 {
    00078     MergingIndexList::Iterator it( mergingIndices.begin() );
    00079     MergingIndexList::Iterator end( mergingIndices.end() );
    00080     for (; it != end; ++it )
    00081         if ( (*it).mergingName == name )
    00082             return it;
    00083     return it;
    00084 }
    00085
    00086 /*
    00087  * Check if the given container widget is a child of this node and return the node structure
    00088  * if fonud.
    00089  */
    00090 ContainerNode *ContainerNode::findContainerNode( QWidget *container )
    00091 {
    00092     ContainerNodeListIt it( children );
    00093
    00094     for (; it.current(); ++it )
    00095         if ( it.current()->container == container )
    00096             return it.current();
    00097
    00098     return 0L;
    00099 }
    00100
    00101 /*
    00102  * Find a container recursively with the given name. Either compares _name with the
    00103  * container's tag name or the value of the container's name attribute. Specified by
    00104  * the tag bool .
    00105  */
    00106 ContainerNode *ContainerNode::findContainer( const QString &_name, bool tag )
    00107 {
    00108     if ( ( tag && tagName == _name ) ||
    00109          ( !tag && name == _name ) )
    00110         return this;
    00111
    00112     ContainerNodeListIt it( children );
    00113     for (; it.current(); ++it )
    00114     {
    00115         ContainerNode *res = it.current()->findContainer( _name, tag );
    00116         if ( res )
    00117             return res;
    00118     }
    00119
    00120     return 0;
    00121 }
    00122
    00123 /*
    00124  * Finds a child container node (not recursively) with the given name and tagname. Explicitly
    00125  * leaves out container widgets specified in the exludeList . Also ensures that the containers
    00126  * belongs to currClient.
    00127  */
    00128 ContainerNode *ContainerNode::findContainer( const QString &name, const QString &tagName,
    00129                                              const QPtrList<QWidget> *excludeList,
    00130                                              KXMLGUIClient */*currClient*/ )
    00131 {
    00132     ContainerNode *res = 0L;
    00133     ContainerNodeListIt nIt( children );
    00134
    00135     if ( !name.isEmpty() )
    00136     {
    00137         for (; nIt.current(); ++nIt )
    00138             if ( nIt.current()->name == name &&
    00139                  !excludeList->containsRef( nIt.current()->container ) )
    00140             {
    00141                 res = nIt.current();
    00142                 break;
    00143             }
    00144
    00145         return res;
    00146     }
    00147
    00148     if ( !tagName.isEmpty() )
    00149         for (; nIt.current(); ++nIt )
    00150         {
    00151             if ( nIt.current()->tagName == tagName &&
    00152                  !excludeList->containsRef( nIt.current()->container )
    00153                  /*
    00154                   * It is a bad idea to also compare the client, because
    00155                   * we don't want to do so in situations like these:
    00156                   *
    00157                   * <MenuBar>
    00158                   *   <Menu>
    00159                   *     ...
    00160                   *
    00161                   * other client:
    00162                   * <MenuBar>
    00163                   *   <Menu>
    00164                   *    ...
    00165                   *
    00166                  && nIt.current()->client == currClient )
    00167                  */
    00168                 )
    00169             {
    00170                 res = nIt.current();
    00171                 break;
    00172             }
    00173         }
    00174
    00175     return res;
    00176 }
    00177
    00178 ContainerClient *ContainerNode::findChildContainerClient( KXMLGUIClient *currentGUIClient,
    00179                                                           const QString &groupName,
    00180                                                           const MergingIndexList::Iterator &mergingIdx )
    00181 {
    00182     if ( !clients.isEmpty() )
    00183     {
    00184         ContainerClientListIt clientIt( clients );
    00185
    00186         for (; clientIt.current(); ++clientIt )
    00187             if ( clientIt.current()->client == currentGUIClient )
    00188             {
    00189                 if ( groupName.isEmpty() )
    00190                     return clientIt.current();
    00191
    00192                 if ( groupName == clientIt.current()->groupName )
    00193                     return clientIt.current();
    00194             }
    00195     }
    00196
    00197     ContainerClient *client = new ContainerClient;
    00198     client->client = currentGUIClient;
    00199     client->groupName = groupName;
    00200
    00201     if ( mergingIdx != mergingIndices.end() )
    00202         client->mergingName = (*mergingIdx).mergingName;
    00203
    00204     clients.append( client );
    00205
    00206     return client;
    00207 }
    00208
    00209 void ContainerNode::plugActionList( BuildState &state )
    00210 {
    00211     MergingIndexList::Iterator mIt( mergingIndices.begin() );
    00212     MergingIndexList::Iterator mEnd( mergingIndices.end() );
    00213     for (; mIt != mEnd; ++mIt )
    00214         plugActionList( state, mIt );
    00215
    00216     QPtrListIterator<ContainerNode> childIt( children );
    00217     for (; childIt.current(); ++childIt )
    00218         childIt.current()->plugActionList( state );
    00219 }
    00220
    00221 void ContainerNode::plugActionList( BuildState &state, const MergingIndexList::Iterator &mergingIdxIt )
    00222 {
    00223     static const QString &tagActionList = KGlobal::staticQString( "actionlist" );
    00224
    00225     MergingIndex mergingIdx = *mergingIdxIt;
    00226
    00227     QString k( mergingIdx.mergingName );
    00228
    00229     if ( k.find( tagActionList ) == -1 )
    00230         return;
    00231
    00232     k = k.mid( tagActionList.length() );
    00233
    00234     if ( mergingIdx.clientName != state.clientName )
    00235         return;
    00236
    00237     if ( k != state.actionListName )
    00238         return;
    00239
    00240     ContainerClient *client = findChildContainerClient( state.guiClient,
    00241                                                         QString::null,
    00242                                                         mergingIndices.end() );
    00243
    00244     client->actionLists.insert( k, state.actionList );
    00245
    00246     state.actionList.plug( container, mergingIdx.value );
    00247
    00248     adjustMergingIndices( state.actionList.count(), mergingIdxIt );
    00249 }
    00250
    00251 void ContainerNode::unplugActionList( BuildState &state )
    00252 {
    00253     MergingIndexList::Iterator mIt( mergingIndices.begin() );
    00254     MergingIndexList::Iterator mEnd( mergingIndices.end() );
    00255     for (; mIt != mEnd; ++mIt )
    00256         unplugActionList( state, mIt );
    00257
    00258     QPtrListIterator<ContainerNode> childIt( children );
    00259     for (; childIt.current(); ++childIt )
    00260         childIt.current()->unplugActionList( state );
    00261 }
    00262
    00263 void ContainerNode::unplugActionList( BuildState &state, const MergingIndexList::Iterator &mergingIdxIt )
    00264 {
    00265     static const QString &tagActionList = KGlobal::staticQString( "actionlist" );
    00266
    00267     MergingIndex mergingIdx = *mergingIdxIt;
    00268
    00269     QString k = mergingIdx.mergingName;
    00270
    00271     if ( k.find( tagActionList ) == -1 )
    00272         return;
    00273
    00274     k = k.mid( tagActionList.length() );
    00275
    00276     if ( mergingIdx.clientName != state.clientName )
    00277         return;
    00278
    00279     if ( k != state.actionListName )
    00280         return;
    00281
    00282     ContainerClient *client = findChildContainerClient( state.guiClient,
    00283                                                         QString::null,
    00284                                                         mergingIndices.end() );
    00285
    00286     ActionListMap::Iterator lIt( client->actionLists.find( k ) );
    00287     if ( lIt == client->actionLists.end() )
    00288         return;
    00289
    00290     lIt.data().unplug( container );
    00291
    00292     adjustMergingIndices( -lIt.data().count(), mergingIdxIt );
    00293
    00294     client->actionLists.remove( lIt );
    00295 }
    00296
    00297 void ContainerNode::adjustMergingIndices( int offset,
    00298                                           const MergingIndexList::Iterator &it )
    00299 {
    00300     MergingIndexList::Iterator mergingIt = it;
    00301     MergingIndexList::Iterator mergingEnd = mergingIndices.end();
    00302
    00303     for (; mergingIt != mergingEnd; ++mergingIt )
    00304         (*mergingIt).value += offset;
    00305
    00306     index += offset;
    00307 }
    00308
    00309 bool ContainerNode::destruct( QDomElement element, BuildState &state )
    00310 {
    00311     destructChildren( element, state );
    00312
    00313     unplugActions( state );
    00314
    00315     // remove all merging indices the client defined
    00316     MergingIndexList::Iterator cmIt = mergingIndices.begin();
    00317     while ( cmIt != mergingIndices.end() )
    00318         if ( (*cmIt).clientName == state.clientName )
    00319             cmIt = mergingIndices.remove( cmIt );
    00320         else
    00321             ++cmIt;
    00322
    00323     // ### check for merging index count, too?
    00324     if ( clients.count() == 0 && children.count() == 0 && container &&
    00325          client == state.guiClient )
    00326     {
    00327         QWidget *parentContainer = 0L;
    00328
    00329         if ( parent && parent->container )
    00330             parentContainer = parent->container;
    00331
    00332         assert( builder );
    00333
    00334         builder->removeContainer( container, parentContainer, element, containerId );
    00335
    00336         client = 0L;
    00337
    00338         return true;
    00339     }
    00340
    00341     if ( client == state.guiClient )
    00342         client = 0L;
    00343
    00344     return false;
    00345
    00346 }
    00347
    00348 void ContainerNode::destructChildren( const QDomElement &element, BuildState &state )
    00349 {
    00350     QPtrListIterator<ContainerNode> childIt( children );
    00351     while ( childIt.current() )
    00352     {
    00353         ContainerNode *childNode = childIt.current();
    00354
    00355         QDomElement childElement = findElementForChild( element, childNode );
    00356
    00357         // destruct returns true in case the container really got deleted
    00358         if ( childNode->destruct( childElement, state ) )
    00359             removeChild( childNode );
    00360         else
    00361             ++childIt;
    00362     }
    00363 }
    00364
    00365 QDomElement ContainerNode::findElementForChild( const QDomElement &baseElement,
    00366                                                 ContainerNode *childNode )
    00367 {
    00368     static const QString &attrName = KGlobal::staticQString( "name" );
    00369
    00370     QDomElement e;
    00371     // ### slow
    00372     for ( e = baseElement.firstChild().toElement(); !e.isNull();
    00373           e = e.nextSibling().toElement() )
    00374         if ( e.tagName() == childNode->tagName &&
    00375              e.attribute( attrName ) == childNode->name )
    00376             return e;
    00377
    00378     return QDomElement();
    00379 }
    00380
    00381 void ContainerNode::unplugActions( BuildState &state )
    00382 {
    00383     if ( !container )
    00384         return;
    00385
    00386     ContainerClientListIt clientIt( clients );
    00387
    00388     if ( clients.count() == 1 && clientIt.current()->client == client &&
    00389          client == state.guiClient )
    00390         container->hide(); // this container is going to die, that's for sure.
    00391                            // in this case let's just hide it, which makes the
    00392                            // destruction faster
    00393
    00394     while ( clientIt.current() )
    00395         //only unplug the actions of the client we want to remove, as the container might be owned
    00396         //by a different client
    00397         if ( clientIt.current()->client == state.guiClient )
    00398         {
    00399             unplugClient( clientIt.current() );
    00400             clients.removeRef( clientIt.current() );
    00401         }
    00402         else
    00403             ++clientIt;
    00404 }
    00405
    00406 void ContainerNode::unplugClient( ContainerClient *client )
    00407 {
    00408     static const QString &tagActionList = KGlobal::staticQString( "actionlist" );
    00409
    00410     assert( builder );
    00411
    00412     // now quickly remove all custom elements (i.e. separators) and unplug all actions
    00413
    00414     QValueList<int>::ConstIterator custIt = client->customElements.begin();
    00415     QValueList<int>::ConstIterator custEnd = client->customElements.end();
    00416     for (; custIt != custEnd; ++custIt )
    00417         builder->removeCustomElement( container, *custIt );
    00418
    00419     client->actions.unplug( container );
    00420
    00421     // now adjust all merging indices
    00422
    00423     MergingIndexList::Iterator mergingIt = findIndex( client->mergingName );
    00424
    00425     adjustMergingIndices( - ( client->actions.count()
    00426                           + client->customElements.count() ),
    00427                           mergingIt );
    00428
    00429     // unplug all actionslists
    00430
    00431     ActionListMap::ConstIterator alIt = client->actionLists.begin();
    00432     ActionListMap::ConstIterator alEnd = client->actionLists.end();
    00433     for (; alIt != alEnd; ++alIt )
    00434     {
    00435         alIt.data().unplug( container );
    00436
    00437         // construct the merging index key (i.e. like named merging) , find the
    00438         // corresponding merging index and adjust all indices
    00439         QString mergingKey = alIt.key();
    00440         mergingKey.prepend( tagActionList );
    00441
    00442         MergingIndexList::Iterator mIt = findIndex( mergingKey );
    00443         if ( mIt == mergingIndices.end() )
    00444             continue;
    00445
    00446         adjustMergingIndices( - alIt.data().count(), mIt );
    00447
    00448         // remove the actionlists' merging index
    00449         // ### still needed? we clean up below anyway?
    00450         mergingIndices.remove( mIt );
    00451     }
    00452 }
    00453
    00454 void ContainerNode::reset()
    00455 {
    00456     QPtrListIterator<ContainerNode> childIt( children );
    00457     for (; childIt.current(); ++childIt )
    00458         childIt.current()->reset();
    00459
    00460     if ( client )
    00461         client->setFactory( 0L );
    00462 }
    00463
    00464 int ContainerNode::calcMergingIndex( const QString &mergingName,
    00465                                      MergingIndexList::Iterator &it,
    00466                                      BuildState &state,
    00467                                      bool ignoreDefaultMergingIndex )
    00468 {
    00469     MergingIndexList::Iterator mergingIt;
    00470
    00471     if ( mergingName.isEmpty() )
    00472         mergingIt = findIndex( state.clientName );
    00473     else
    00474         mergingIt = findIndex( mergingName );
    00475
    00476     MergingIndexList::Iterator mergingEnd = mergingIndices.end();
    00477     it = mergingEnd;
    00478
    00479     if ( ( mergingIt == mergingEnd && state.currentDefaultMergingIt == mergingEnd ) ||
    00480          ignoreDefaultMergingIndex )
    00481         return index;
    00482
    00483     if ( mergingIt != mergingEnd )
    00484         it = mergingIt;
    00485     else
    00486         it = state.currentDefaultMergingIt;
    00487
    00488     return (*it).value;
    00489 }
    00490
    00491 BuildHelper::BuildHelper( BuildState &state, ContainerNode *node )
    00492     : containerClient( 0 ), ignoreDefaultMergingIndex( false ), m_state( state ),
    00493       parentNode( node )
    00494 {
    00495     static const QString &defaultMergingName = KGlobal::staticQString( "<default>" );
    00496
    00497     // create a list of supported container and custom tags
    00498     customTags = m_state.builderCustomTags;
    00499     containerTags = m_state.builderContainerTags;
    00500
    00501     if ( parentNode->builder != m_state.builder )
    00502     {
    00503         customTags += parentNode->builderCustomTags;
    00504         containerTags += parentNode->builderContainerTags;
    00505     }
    00506
    00507     if ( m_state.clientBuilder ) {
    00508         customTags = m_state.clientBuilderCustomTags + customTags;
    00509         containerTags = m_state.clientBuilderContainerTags + containerTags;
    00510     }
    00511
    00512     m_state.currentDefaultMergingIt = parentNode->findIndex( defaultMergingName );
    00513     parentNode->calcMergingIndex( QString::null, m_state.currentClientMergingIt,
    00514                                   m_state, /*ignoreDefaultMergingIndex*/ false );
    00515 }
    00516
    00517 void BuildHelper::build( const QDomElement &element )
    00518 {
    00519     QDomElement e = element.firstChild().toElement();
    00520     for (; !e.isNull(); e = e.nextSibling().toElement() )
    00521         processElement( e );
    00522 }
    00523
    00524 void BuildHelper::processElement( const QDomElement &e )
    00525 {
    00526     // some often used QStrings
    00527     static const QString &tagAction = KGlobal::staticQString( "action" );
    00528     static const QString &tagMerge = KGlobal::staticQString( "merge" );
    00529     static const QString &tagState = KGlobal::staticQString( "state" );
    00530     static const QString &tagDefineGroup = KGlobal::staticQString( "definegroup" );
    00531     static const QString &tagActionList = KGlobal::staticQString( "actionlist" );
    00532     static const QString &attrName = KGlobal::staticQString( "name" );
    00533
    00534     QString tag( e.tagName().lower() );
    00535     QString currName( e.attribute( attrName ) );
    00536
    00537     bool isActionTag = ( tag == tagAction );
    00538
    00539     if ( isActionTag || customTags.findIndex( tag ) != -1 )
    00540         processActionOrCustomElement( e, isActionTag );
    00541     else if ( containerTags.findIndex( tag ) != -1 )
    00542         processContainerElement( e, tag, currName );
    00543     else if ( tag == tagMerge || tag == tagDefineGroup || tag == tagActionList )
    00544         processMergeElement( tag, currName, e );
    00545     else if ( tag == tagState )
    00546         processStateElement( e );
    00547 }
    00548
    00549 void BuildHelper::processActionOrCustomElement( const QDomElement &e, bool isActionTag )
    00550 {
    00551     static const QString &attrGroup = KGlobal::staticQString( "group" );
    00552
    00553     if ( !parentNode->container )
    00554         return;
    00555
    00556     MergingIndexList::Iterator it( m_state.currentClientMergingIt );
    00557
    00558     bool haveGroup = false;
    00559     QString group( e.attribute( attrGroup ) );
    00560     if ( !group.isEmpty() )
    00561     {
    00562         group.prepend( attrGroup );
    00563         haveGroup = true;
    00564     }
    00565
    00566     int idx;
    00567     if ( haveGroup ) // if we have a group attribute, then we cannot use our nicely
    00568                      // cached running merging index values.
    00569         idx = parentNode->calcMergingIndex( group, it, m_state, ignoreDefaultMergingIndex );
    00570     else if ( m_state.currentClientMergingIt == parentNode->mergingIndices.end() )
    00571         // if we don't have a current merging index, then we want to append our action
    00572         idx = parentNode->index;
    00573     else
    00574         idx = (*m_state.currentClientMergingIt).value;
    00575
    00576     containerClient = parentNode->findChildContainerClient( m_state.guiClient, group, it );
    00577
    00578     bool guiElementCreated = false;
    00579     if ( isActionTag )
    00580         guiElementCreated = processActionElement( e, idx );
    00581     else
    00582         guiElementCreated = processCustomElement( e, idx );
    00583
    00584     if ( guiElementCreated )
    00585         // adjust any following merging indices and the current running index for the container
    00586         parentNode->adjustMergingIndices( 1, it );
    00587 }
    00588
    00589 bool BuildHelper::processActionElement( const QDomElement &e, int idx )
    00590 {
    00591     assert( m_state.guiClient );
    00592
    00593     // look up the action and plug it in
    00594     KAction *action = m_state.guiClient->action( e );
    00595
    00596     if ( !action )
    00597         return false;
    00598
    00599     action->plug( parentNode->container, idx );
    00600
    00601     // save a reference to the plugged action, in order to properly unplug it afterwards.
    00602     containerClient->actions.append( action );
    00603
    00604     return true;
    00605 }
    00606
    00607 bool BuildHelper::processCustomElement( const QDomElement &e, int idx )
    00608 {
    00609     assert( parentNode->builder );
    00610
    00611     int id = parentNode->builder->createCustomElement( parentNode->container, idx, e );
    00612     if ( id == 0 )
    00613         return false;
    00614
    00615     containerClient->customElements.append( id );
    00616     return true;
    00617 }
    00618
    00619 void BuildHelper::processStateElement( const QDomElement &element )
    00620 {
    00621     QString stateName = element.attribute( "name" );
    00622
    00623     if ( !stateName || !stateName.length() ) return;
    00624
    00625     QDomElement e = element.firstChild().toElement();
    00626
    00627     for (; !e.isNull(); e = e.nextSibling().toElement() ) {
    00628         QString tagName = e.tagName().lower();
    00629
    00630         if ( tagName != "enable" && tagName != "disable" )
    00631             continue;
    00632
    00633         bool processingActionsToEnable = (tagName == "enable");
    00634
    00635         // process action names
    00636         QDomElement actionEl = e.firstChild().toElement();
    00637
    00638         for (; !actionEl.isNull(); actionEl = actionEl.nextSibling().toElement() ) {
    00639             if ( actionEl.tagName().lower() != "action" ) continue;
    00640
    00641             QString actionName = actionEl.attribute( "name" );
    00642             if ( !actionName || !actionName.length() ) return;
    00643
    00644             if ( processingActionsToEnable )
    00645                 m_state.guiClient->addStateActionEnabled( stateName, actionName );
    00646             else
    00647                 m_state.guiClient->addStateActionDisabled( stateName, actionName );
    00648
    00649         }
    00650     }
    00651 }
    00652
    00653 void BuildHelper::processMergeElement( const QString &tag, const QString &name, const QDomElement &e )
    00654 {
    00655     static const QString &tagDefineGroup = KGlobal::staticQString( "definegroup" );
    00656     static const QString &tagActionList = KGlobal::staticQString( "actionlist" );
    00657     static const QString &defaultMergingName = KGlobal::staticQString( "<default>" );
    00658     static const QString &attrGroup = KGlobal::staticQString( "group" );
    00659
    00660     QString mergingName( name );
    00661     if ( mergingName.isEmpty() )
    00662     {
    00663         if ( tag == tagDefineGroup )
    00664         {
    00665             kdError(1000) << "cannot define group without name!" << endl;
    00666             return;
    00667         }
    00668         if ( tag == tagActionList )
    00669         {
    00670             kdError(1000) << "cannot define actionlist without name!" << endl;
    00671             return;
    00672         }
    00673         mergingName = defaultMergingName;
    00674     }
    00675
    00676     if ( tag == tagDefineGroup )
    00677         mergingName.prepend( attrGroup ); //avoid possible name clashes by prepending
    00678                                               // "group" to group definitions
    00679     else if ( tag == tagActionList )
    00680         mergingName.prepend( tagActionList );
    00681
    00682     if ( parentNode->findIndex( mergingName ) != parentNode->mergingIndices.end() )
    00683         return; //do not allow the redefinition of merging indices!
    00684
    00685     MergingIndexList::Iterator mIt( parentNode->mergingIndices.end() );
    00686
    00687     QString group( e.attribute( attrGroup ) );
    00688     if ( !group.isEmpty() )
    00689         group.prepend( attrGroup );
    00690
    00691     // calculate the index of the new merging index. Usually this does not need any calculation,
    00692     // we just want the last available index (i.e. append) . But in case the <Merge> tag appears
    00693     // "inside" another <Merge> tag from a previously build client, then we have to use the
    00694     // "parent's" index. That's why we call calcMergingIndex here.
    00695     MergingIndex newIdx;
    00696     newIdx.value = parentNode->calcMergingIndex( group, mIt, m_state, ignoreDefaultMergingIndex );
    00697     newIdx.mergingName = mergingName;
    00698     newIdx.clientName = m_state.clientName;
    00699
    00700     // if that merging index is "inside" another one, then append it right after the "parent" .
    00701     if ( mIt != parentNode->mergingIndices.end() )
    00702         parentNode->mergingIndices.insert( ++mIt, newIdx );
    00703     else
    00704         parentNode->mergingIndices.append( newIdx );
    00705
    00706     if ( mergingName == defaultMergingName )
    00707
    00708         ignoreDefaultMergingIndex = true;
    00709
    00710     // re-calculate the running default and client merging indices.
    00711     m_state.currentDefaultMergingIt = parentNode->findIndex( defaultMergingName );
    00712     parentNode->calcMergingIndex( QString::null, m_state.currentClientMergingIt,
    00713                                   m_state, ignoreDefaultMergingIndex );
    00714 }
    00715
    00716 void BuildHelper::processContainerElement( const QDomElement &e, const QString &tag,
    00717                                            const QString &name )
    00718 {
    00719     static const QString &attrGroup = KGlobal::staticQString( "group" );
    00720     static const QString &defaultMergingName = KGlobal::staticQString( "<default>" );
    00721
    00722     ContainerNode *containerNode = parentNode->findContainer( name, tag,
    00723                                                               &containerList,
    00724                                                               m_state.guiClient );
    00725
    00726     if ( !containerNode )
    00727     {
    00728         MergingIndexList::Iterator it( m_state.currentClientMergingIt );
    00729
    00730         bool haveGroup = false;
    00731         QString group( e.attribute( attrGroup ) );
    00732         if ( !group.isEmpty() )
    00733         {
    00734             group.prepend( attrGroup );
    00735             haveGroup = true;
    00736         }
    00737
    00738         int idx;
    00739         if ( haveGroup )
    00740             idx = parentNode->calcMergingIndex( group, it, m_state, ignoreDefaultMergingIndex );
    00741         else if ( m_state.currentClientMergingIt == parentNode->mergingIndices.end() )
    00742             idx = parentNode->index;
    00743         else
    00744             idx = (*m_state.currentClientMergingIt).value;
    00745
    00746         int id;
    00747
    00748         KXMLGUIBuilder *builder;
    00749
    00750         QWidget *container = createContainer( parentNode->container, idx, e, id, &builder );
    00751
    00752         // no container? (probably some <text> tag or so ;-)
    00753         if ( !container )
    00754             return;
    00755
    00756         parentNode->adjustMergingIndices( 1, it );
    00757
    00758         assert( parentNode->findContainerNode( container ) == 0 );
    00759
    00760         containerList.append( container );
    00761
    00762         QString mergingName;
    00763         if ( it != parentNode->mergingIndices.end() )
    00764             mergingName = (*it).mergingName;
    00765
    00766         QStringList cusTags = m_state.builderCustomTags;
    00767         QStringList conTags = m_state.builderContainerTags;
    00768         if ( builder != m_state.builder )
    00769         {
    00770             cusTags = m_state.clientBuilderCustomTags;
    00771             conTags = m_state.clientBuilderContainerTags;
    00772         }
    00773
    00774         containerNode = new ContainerNode( container, tag, name, parentNode,
    00775                                            m_state.guiClient, builder, id,
    00776                                            mergingName, group, cusTags, conTags );
    00777     }
    00778
    00779     BuildHelper( m_state, containerNode ).build( e );
    00780
    00781     // and re-calculate running values, for better performance
    00782     m_state.currentDefaultMergingIt = parentNode->findIndex( defaultMergingName );
    00783     parentNode->calcMergingIndex( QString::null, m_state.currentClientMergingIt,
    00784                                   m_state, ignoreDefaultMergingIndex );
    00785 }
    00786
    00787 QWidget *BuildHelper::createContainer( QWidget *parent, int index,
    00788                                        const QDomElement &element, int &id,
    00789                                        KXMLGUIBuilder **builder )
    00790 {
    00791     QWidget *res = 0L;
    00792
    00793     if ( m_state.clientBuilder )
    00794     {
    00795         res = m_state.clientBuilder->createContainer( parent, index, element, id );
    00796
    00797         if ( res )
    00798         {
    00799             *builder = m_state.clientBuilder;
    00800             return res;
    00801         }
    00802     }
    00803
    00804     KInstance *oldInstance = m_state.builder->builderInstance();
    00805     KXMLGUIClient *oldClient = m_state.builder->builderClient();
    00806
    00807     m_state.builder->setBuilderClient( m_state.guiClient );
    00808
    00809     res = m_state.builder->createContainer( parent, index, element, id );
    00810
    00811     m_state.builder->setBuilderInstance( oldInstance );
    00812     m_state.builder->setBuilderClient( oldClient );
    00813
    00814     if ( res )
    00815         *builder = m_state.builder;
    00816
    00817     return res;
    00818 }
    00819
    00820 void BuildState::reset()
    00821 {
    00822     clientName = QString::null;
    00823     actionListName = QString::null;
    00824     actionList.clear();
    00825     guiClient = 0;
    00826     clientBuilder = 0;
    00827
    00828     currentDefaultMergingIt = currentClientMergingIt = MergingIndexList::Iterator();
    00829 }
    00830
    00831 /* vim: et sw=4
    00832  */

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 12:58:05 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001