C++ QObjectList::first方法代码示例

KexiStartupFileDialogBase::KexiStartupFileDialogBase(
    const QString & dirName, const QString & filter,
    QWidget * parent, const char * name, bool modal)
        : Q3FileDialog(realStartDir(dirName), filter, parent, name, modal)
        , d(new KexiStartupFileDialogBasePrivate())
{
// QString _dirName = dirName;
    QString _dirName = dirPath();
    //make default 'My Documents' folder
//TODO: store changes in the app's config file?
    if (_dirName.isEmpty())
        _dirName = KGlobalSettings::documentPath();

    init(_dirName, filter, parent);

    //find "OK" button
    QObjectList *l = queryList("QPushButton", "OK", false);
    m_okBtn = dynamic_cast<QPushButton*>(l->first());
    delete l;
    l = queryList("QLineEdit", "name/filter editor", false);
    m_lineEdit = dynamic_cast<QLineEdit*>(l->first());
    delete l;

    adjustSize();
}

void MetaDataBase::doConnections( QObject *o )
{
    setupDataBase();
    MetaDataBaseRecord *r = db->find( (void*)o );
    if ( !r ) {
        qWarning( "No entry for %p (%s, %s) found in MetaDataBase",
                  o, o->name(), o->className() );
        return;
    }

    QObject *sender = 0, *receiver = 0;
    QObjectList *l = 0;
    QValueList<Connection>::Iterator it = r->connections.begin();
    for ( ; it != r->connections.end(); ++it ) {
        Connection conn = *it;
        if ( qstrcmp( conn.sender->name(), o->name() ) == 0 ) {
            sender = o;
        } else {
            l = o->queryList( 0, conn.sender->name(), false );
            if ( !l || !l->first() ) {
                delete l;
                continue;
            }
            sender = l->first();
            delete l;
        }
        if ( qstrcmp( conn.receiver->name(), o->name() ) == 0 ) {
            receiver = o;
        } else {
            l = o->queryList( 0, conn.receiver->name(), false );
            if ( !l || !l->first() ) {
                delete l;
                continue;
            }
            receiver = l->first();
            delete l;
        }
        QString s = "2""%1";
        s = s.arg( conn.signal );
        QString s2 = "1""%1";
        s2 = s2.arg( conn.slot );

        QStrList signalList = sender->metaObject()->signalNames( true );
        QStrList slotList = receiver->metaObject()->slotNames( true );

        // avoid warnings
        if ( signalList.find( conn.signal ) == -1 ||
             slotList.find( conn.slot ) == -1 )
            continue;

        QObject::connect( sender, s, receiver, s2 );
    }
}

static void signalHandler( QT_SIGNAL_ARGS )
{
    QFile f( QDir::homeDirPath() + "/.designerargs" );
    f.open( IO_ReadOnly );
    QString args;
    f.readLine( args, f.size() );
    QStringList lst = QStringList::split( " ", args );
    for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) {
	QString arg = (*it).stripWhiteSpace();
	if ( arg[0] != '-' ) {
	    QObjectList* l = MainWindow::self->queryList( "FormWindow" );
	    FormWindow* fw = (FormWindow*) l->first();
#if 0 // ### what's this dead code for?
	    FormWindow* totop;
#endif
	    bool haveit = FALSE;
	    while ( fw ) {
		haveit = haveit || fw->fileName() == arg;
#if 0 // ### what's this dead code for?
		if ( haveit )
		    totop = fw;
#endif
		fw = (FormWindow*) l->next();
	    }
	    if ( !haveit )
		MainWindow::self->openFormWindow( arg );
	}
    }
    MainWindow::self->raise();
    MainWindow::self->setActiveWindow();
}

void 
PatternWidgetClass::init()
{
  // delete all childs
  QObjectList * childs;
  while((childs =  const_cast<QObjectList *>(this->children())) != NULL && 
	!childs->isEmpty()) {
    delete childs->first();
  }

  // resize widget //
  int numBehaviours = getDocument().getNumBehaviours(patternName);
  setFixedSize(100,
	       PATTERN_NAME_HEIGHT + 
	       BEHAVIOUR_NAME_HEIGHT * numBehaviours + 
	       ARBITER_NAME_HEIGHT +
	       2*frameWidth());

  // get internal rect dimensions (inside the frame) //
  QRect cr = contentsRect();


  //----------------//
  // behaviour list //
  //----------------//

   // get string list with behaviour names //
   QStringList list = getDocument().getBehaviourNames(patternName);

   // show all behaviour names //
   int i = 0;
   for (QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
     QString behName = (*it);

     // create new label //
     BehaviourWidget* behWidget = new BehaviourWidget(this, behName);
     behWidget->setGeometry(cr.x(), 
			    cr.y()+PATTERN_NAME_HEIGHT+i*BEHAVIOUR_NAME_HEIGHT,
			    cr.width(), BEHAVIOUR_NAME_HEIGHT);  
     behWidget->show();

     i++;
   }


  //---------//
  // arbiter //
  //---------//

  ArbiterWidget * arbiterWidget = 
    new ArbiterWidget(this, getDocument().getArbiter(patternName));
  arbiterWidget->setGeometry(cr.x(), cr.y()+cr.height()-ARBITER_NAME_HEIGHT, 
			     cr.width(), ARBITER_NAME_HEIGHT);  
  arbiterWidget->show();

  update();
}

void QDesignerToolBar::installEventFilters( QWidget *w )
{
    if ( !w )
	return;
    QObjectList *l = w->queryList( "QWidget" );
    for ( QObject *o = l->first(); o; o = l->next() )
	o->installEventFilter( this );
    delete l;
}

QStringList Folder::subfolders()
{
QStringList lst = QStringList();
QObjectList* folderLst = (QObjectList*)children();
if (!folderLst)
	return lst;

if (folderLst)
	{
	Folder *f;
	for (f = (Folder*)folderLst->first(); f; f = (Folder*)folderLst->next())
		lst << f->folderName();
	}
return lst;
}

void
DocumentXML::clear()
{
    document_.removeChild(document_.documentElement());
    setModified(true);

    if (children()) {
        QObjectList childList = *children();
        QObject * c = childList.first();
        while (c) {
            delete c;
            c = childList.next();
        }
    }
}

void OutputWindow::setErrorMessages( const QStringList &errors, const QValueList<uint> &lines,
				     bool clear, const QStringList &locations,
				     const QObjectList &locationObjects )
{
    if ( clear )
	errorView->clear();
    QStringList::ConstIterator mit = errors.begin();
    QValueList<uint>::ConstIterator lit = lines.begin();
    QStringList::ConstIterator it = locations.begin();
    QObjectList objects = (QObjectList)locationObjects;
    QObject *o = objects.first();
    QListViewItem *after = 0;
    for ( ; lit != lines.end() && mit != errors.end(); ++lit, ++mit, ++it, o = objects.next() )
	after = new ErrorItem( errorView, after, *mit, *lit, *it, o );
    setCurrentPage( 1 );
}

QStatusBar * QMainWindow::statusBar() const
{
    if ( d->sb )
	return d->sb;

    QObjectList * l
	= ((QObject*)this)->queryList( "QStatusBar", 0, FALSE, FALSE );
    QStatusBar * s;
    if ( l && l->count() )
	s = (QStatusBar *)l->first();
    else
	s = new QStatusBar( (QMainWindow *)this, "automatic status bar" );
    delete l;
    ((QMainWindow *)this)->setStatusBar( s );
    return s;
}

QMenuBar * QMainWindow::menuBar() const
{
    if ( d->mb )
	return d->mb;

    QObjectList * l
	= ((QObject*)this)->queryList( "QMenuBar", 0, FALSE, FALSE );
    QMenuBar * b;
    if ( l && l->count() )
	b = (QMenuBar *)l->first();
    else
	b = new QMenuBar( (QMainWindow *)this, "automatic menu bar" );
    delete l;
    ((QMainWindowPrivate*)d)->mb = b;
    d->mb->installEventFilter( this );
    ((QMainWindow *)this)->triggerLayout();
    return b;
}

QString Folder::sizeToString()
{
int size = 0;

QObjectList* folderLst = (QObjectList*)children();
if (folderLst)
	{
	Folder *f;
	for (f = (Folder*)folderLst->first(); f; f = (Folder*)folderLst->next())
		size += sizeof(f);
	}

myWidget *w;
for (w = lstWindows.first(); w ; w = lstWindows.next())
	size += sizeof(w);

return QString::number(8*size/1024.0,'f',1)+" "+tr("kB")+" ("+QString::number(8*size)+" "+tr("bytes")+")";
}

void 
PolicyView::init(PolicyXML * _policy)
{
  if (policy_ == _policy)
    return;

  // delete all childs
  QObjectList * childs;
  while((childs =  const_cast<QObjectList *>(viewport()->children())) != NULL && 
	!childs->isEmpty()) {
    delete childs->first();
  }

  policy_ = _policy;

  if (policy_ == NULL)
    return;

  policy_->setWidget(this);

  //-------------------------
  // rebuild the widget list

  QListViewItem * i = policy_->listViewItem()->firstChild();
  while (i != NULL) {
    Item * item = policy_->itemFromListViewItem(i);
    PatternXML * pattern = dynamic_cast<PatternXML *>(item);
    if (pattern != NULL)
      addPatternWidget(pattern);

    i = i->nextSibling();
  }

  QRect r = viewport()->childrenRect();
  QPoint s = viewportToContents(r.bottomRight());

  resizeContents(s.x(), s.y());
  setContentsPos(0, 0);
}

Folder* Folder::findSubfolder(const QString& s, bool caseSensitive, bool partialMatch)
{
QObjectList* folderLst = (QObjectList*)children();
if (folderLst)
	{
	Folder *f;
	for (f = (Folder*)folderLst->first(); f; f = (Folder*)folderLst->next())
		{
		QString name = f->folderName();
		if (partialMatch && name.startsWith(s, caseSensitive))
			return f;
		else if (caseSensitive && name == s)
			return f;
		else 
			{
			QString text = s;
			if (name == text.lower())
				return f;
			}
		}
	}
return 0;
}

void 
PolicyViewClass::init()
{
  // delete all childs
  QObjectList * childs;
  while((childs =  const_cast<QObjectList *>(viewport()->children())) != NULL && 
	!childs->isEmpty()) {
    delete childs->first();
  }

  //-------------------------//
  // rebuild the widget list //
  //-------------------------//

  QStringList list = document.getPatternNames();

  QStringList::Iterator patternIter = list.begin();
  while (patternIter !=list.end()) {
    // generate pattern widget //
    QString patternName = *patternIter;

    PatternWidgetClass* patternWidget = new PatternWidgetClass(this, viewport(), patternName);
    patternWidget->show(); 
    int x = std::max(0, document.getX(patternName));
    int y = std::max(0, document.getY(patternName));
    addChild(patternWidget, x, y);

    patternIter++;
  }

  QRect r = viewport()->childrenRect();
  QPoint s = viewportToContents(r.bottomRight());

  resizeContents(s.x(), s.y());
  setContentsPos(0, 0);
}

AmarokConfigDialog::AmarokConfigDialog( QWidget *parent, const char* name, KConfigSkeleton *config )
        : KConfigDialog( parent, name, config )
        , m_engineConfig( 0 )
        , m_opt4( 0 )
{
    setWFlags( WDestructiveClose );

    // IMPORTANT Don't simply change the page names, they are used as identifiers in other parts of the app.
            m_opt1 = new Options1( 0, "General" );
            m_opt2 = new Options2( 0, "Appearance" );
            m_opt4 = new Options4( 0, "Playback" );
    Options5 *opt5 = new Options5( 0, "OSD" );
    QVBox    *opt6 = new QVBox;
            m_opt7 = new Options7( 0, "Collection" );
    Options8 *opt8 = new Options8( 0, "Scrobbler" );
    QVBox    *opt9 = new QVBox;

    // Sound System
    opt6->setName( "Engine" );
    opt6->setSpacing( KDialog::spacingHint() );
    QWidget *groupBox, *aboutEngineButton;
    groupBox            = new QGroupBox( 2, Qt::Horizontal, i18n("Sound System"), opt6 );
    m_engineConfigFrame = new QGroupBox( 1, Qt::Horizontal, opt6 );
    m_soundSystem       = new QComboBox( false, groupBox );
    aboutEngineButton   = new QPushButton( i18n("About"), groupBox );

    QToolTip::add( m_soundSystem, i18n("Click to select the sound system to use for playback.") );
    QToolTip::add( aboutEngineButton, i18n("Click to get the plugin information.") );

    /// Populate the engine selection combo box
    KTrader::OfferList offers = PluginManager::query( "[X-KDE-amaroK-plugintype] == 'engine'" );
    KTrader::OfferList::ConstIterator end( offers.end() );
    for( KTrader::OfferList::ConstIterator it = offers.begin(); it != end; ++it ) {
        // Don't list the <no engine> (void engine) entry if it's not currenty active,
        // cause there's no point in choosing this engine (it's a dummy, after all).
        if( (*it)->property( "X-KDE-amaroK-name" ).toString() == "void-engine"
            && AmarokConfig::soundSystem() != "void-engine" ) continue;

        m_soundSystem->insertItem( (*it)->name() );
        // Save name properties in QMap for lookup
        m_pluginName[(*it)->name()] = (*it)->property( "X-KDE-amaroK-name" ).toString();
        m_pluginAmarokName[(*it)->property( "X-KDE-amaroK-name" ).toString()] = (*it)->name();
    }

    // Collection
#if !defined(USE_MYSQL) && !defined(USE_POSTGRESQL)
    m_opt7->databaseBox->hide();
#endif

#ifndef USE_MYSQL
    //FIXME we do this because this widget breaks the Apply button (always enabled).
    //It breaks because it is set to type="password" in the .kcfg file. Setting to
    //type="string" also fixes this bug, but means the password is stored in plain
    //text. This is a temporary fix so that the majority of users get a fixed Apply
    //button.
    delete m_opt7->dbSetupFrame->kcfg_MySqlPassword2;
#endif
    m_opt7->collectionFoldersBox->setColumns( 1 );
    new CollectionSetup( m_opt7->collectionFoldersBox ); //TODO this widget doesn't update the apply/ok buttons

    // Media Devices
    opt9->setName( "Media Devices" );
    opt9->setSpacing( KDialog::spacingHint() );
    QVBox *topbox = new QVBox( opt9 );
    topbox->setSpacing( KDialog::spacingHint() );
    QGroupBox *mediaBox  = new QGroupBox( 2, Qt::Horizontal, i18n("Media Devices"), topbox );
    mediaBox->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Minimum );
    QVBox *vbox = new QVBox( mediaBox );
    vbox->setSpacing( KDialog::spacingHint() );
    m_deviceManager = new MediumPluginManager( vbox );

    QHBox *hbox = new QHBox( topbox );
    hbox->setSpacing( KDialog::spacingHint() );
    hbox->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Minimum );
    KPushButton *autodetect = new KPushButton( i18n( "Autodetect Devices" ), hbox );
    autodetect->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) );
    connect( autodetect, SIGNAL(clicked()), m_deviceManager, SLOT(redetectDevices()) );
    KPushButton *add = new KPushButton( i18n( "Add Device..." ), hbox );
    add->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) );
    connect( add, SIGNAL(clicked()), m_deviceManager, SLOT(newDevice()) );

    QFrame *frame = new QFrame( topbox );
    frame->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );

    // add pages
    addPage( m_opt1, i18n( "General" ), "misc", i18n( "Configure General Options" ) );
    addPage( m_opt2, i18n( "Appearance" ), "colors", i18n( "Configure amaroK's Appearance" ) );
    addPage( m_opt4, i18n( "Playback" ), "kmix", i18n( "Configure Playback" ) );
    addPage( opt5,   i18n( "OSD" ), "tv", i18n( "Configure On-Screen-Display" ) );
    addPage( opt6,   i18n( "Engine" ), "amarok", i18n( "Configure Engine" ) );
    addPage( m_opt7, i18n( "Collection" ), amaroK::icon( "collection" ), i18n( "Configure Collection" ) );
    addPage( opt8,   i18n( "last.fm" ), "audioscrobbler", i18n( "Configure last.fm Support" ) );
    addPage( opt9,   i18n( "Media Devices" ), amaroK::icon( "device" ), i18n( "Configure Portable Player Support" ) );

    // Show information labels (must be done after insertions)
    QObjectList *list = queryList( "QLabel", "infoPixmap" );
    for( QObject *label = list->first(); label; label = list->next() )
        static_cast<QLabel*>(label)->setPixmap( QMessageBox::standardIcon( QMessageBox::Information ) );
    delete list;

//.........这里部分代码省略.........