C++ QPtrList::remove方法代码示例

int main(int argc,char **argv)
{
	QApplication app(argc,argv);
	QPtrList<int> list;
	
	for (int i=0;i<3;i++)
	{
		list.append(new int(i)); // 插入資料
	}

	list.first(); // 先跳到第一個元素
	for (int i=0;i<3;i++,list.next())
	{
		cout << *(list.current()) << endl;
	}

	list.first();
	list.next();
	list.remove();
	list.remove();
	list.remove();
	cout << *(list.current()) << endl;
	// 由這一個例子可以知道,刪掉一個成員後,指標會跑到下一個.但若刪掉後沒有下一個時,指標會跑到前一個

	return 0;
}

/*!
	\internal
	Reads and removes from internal read buffer \a nbytes and place then into \a sink.
	Returns true if successfull or false if there were not enought bytes to fullfill
	the request.
*/
bool cAsyncNetIOPrivate::consumeReadBuf( Q_ULONG nbytes, char *sink )
{
    if ( nbytes <= 0 || nbytes > rsize )
		return false;
    rsize -= nbytes;
    for ( ;; ) 
	{
		QByteArray *a = rba.first();
		if ( rindex + nbytes >= a->size() ) 
		{
			// Here we skip the whole byte array and get the next later
			int len = a->size() - rindex;
			if ( sink ) 
			{
				memcpy( sink, a->data()+rindex, len );
				sink += len;
			}
			nbytes -= len;
			rba.remove();
			rindex = 0;
			if ( nbytes == 0 ) 
			{		// nothing more to skip
				break;
			}
		} else {
			// Here we skip only a part of the first byte array
			if ( sink )
				memcpy( sink, a->data()+rindex, nbytes );
			rindex += nbytes;
			break;
		}
    }
    return true;
}

void
xQGanttBarViewPort::deleteSelectedItems()
{
#ifdef _DEBUG_
    printf("-> xQGanttBarViewPort::deleteSelectedItems()\n");
#endif

    QPtrList<KGanttItem> list;
    observeList(&list);

    getSelectedItems(_toplevelitem, list);

    for(KGanttItem *subitem = list.first();
            subitem != 0;
            subitem = list.next())
    {
#ifdef _DEBUG_
        printf(" : %s \n", subitem->getText().latin1());
#endif
        connect(subitem, SIGNAL(destroyed(KGanttItem *)),
                this, SLOT(itemDestroyed(KGanttItem *)));
    }

    list.remove(_toplevelitem);

    while(list.count() > 0)
    {
        KGanttItem *item = list.getFirst();
        delete item;
    }

#ifdef _DEBUG_
    printf("<- xQGanttBarViewPort::deleteSelectedItems()\n");
#endif
}

// The dtor.
QsciScintillaBase::~QsciScintillaBase()
{
    // Remove it from the pool.
    poolList.remove(this);

    delete sci;
}

PlotLine * THERM::calculateCustom (QString &p, QPtrList<PlotLine> &d)
{
  // format1: MA_TYPE, MA_PERIOD, THRESHOLD, SMOOTHING_TYPE, SMOOTHING_PERIOD

  if (checkFormat(p, d, 5, 5))
    return 0;

  QStringList mal;
  getMATypes(mal);
  maType = mal.findIndex(formatStringList[0]);
  maPeriod = formatStringList[1].toInt();
  threshold = formatStringList[2].toDouble();
  smoothType = mal.findIndex(formatStringList[3]);
  smoothing = formatStringList[4].toInt();

  QPtrList<PlotLine> pll;
  pll.setAutoDelete(FALSE);
  getTHERM(pll);

  int loop;
  for (loop = pll.count() - 1; loop > 0; loop--)
    pll.remove(loop);

  return pll.at(0);
}

/*!
  \internal
  Removes from internal read buffer \a nbytes.
  Returns true if successfull or false if there were not enought bytes in buffer to fullfill
  the request.
*/
bool cAsyncNetIOPrivate::consumeWriteBuf( Q_ULONG nbytes )
{
	if ( nbytes > wsize )
	{
		wsize = 0;
		return false;
	}

	if ( nbytes <= 0 || nbytes > wsize )
		return false;
	wsize -= nbytes;
	for ( ; ; )
	{
		QByteArray* a = ewba.first();
		if ( windex + nbytes >= a->size() )
		{
			nbytes -= a->size() - windex;
			ewba.remove();
			windex = 0;
			if ( nbytes == 0 )
				break;
		}
		else
		{
			windex += nbytes;
			break;
		}
	}
	return false;
}

void QEventLoopEx::unregisterSocketNotifier( QSocketNotifier *notifier )
{
    int sockfd = notifier->socket();
    int type = notifier->type();
    if ( sockfd < 0 || type < 0 || type > 2 || notifier == 0 ) {
#if defined(QT_CHECK_RANGE)
        qWarning( "QSocketNotifier: Internal error" );
#endif
        return;
    }
#ifdef _DEBUG_EVENTLOOPEX
    qDebug( "QSocketNotifier::unregisterSocketNotifier %p", notifier );
#endif

    EnterCriticalSection(&d->m_csVec);
    QPtrList<QSockNotEx> *list = d->sn_vec[type].list;
    fd_set *fds  =  &d->sn_vec[type].enabled_fds;
    QSockNotEx *sn;
    if ( ! list ) {
        LeaveCriticalSection(&d->m_csVec);
        QEventLoop::unregisterSocketNotifier(notifier);
        return;
    }
    sn = list->first();
    while ( sn && !(sn->obj == notifier && sn->fd == sockfd) )
        sn = list->next();
    if ( !sn ) {// not found
        LeaveCriticalSection(&d->m_csVec);
        QEventLoop::unregisterSocketNotifier(notifier);
        return;
    }

    FD_CLR( sockfd, fds ); // clear fd bit
    FD_CLR( sockfd, sn->queue );

    EnterCriticalSection(&d->m_csPendingList);
    d->sn_pending_list.removeRef( sn );		// remove from activation list
    bool bNowEmpty = (d->sn_pending_list.count() == 0);
    LeaveCriticalSection(&d->m_csPendingList);
    if(bNowEmpty)
        SetEvent(d->m_evPendingListEmpty);
    list->remove(); // remove notifier found above

    if ( d->sn_highest == sockfd ) {// find highest fd
        d->sn_highest = -1;
        for ( int i=0; i<3; i++ ) {
            if ( d->sn_vec[i].list && ! d->sn_vec[i].list->isEmpty() )
                d->sn_highest = QMAX( d->sn_highest,  // list is fd-sorted
                                      d->sn_vec[i].list->getFirst()->fd );
        }
    }
    LeaveCriticalSection(&d->m_csVec);
#ifdef _DEBUG_EVENTLOOPEX
    qDebug( "QSocketNotifier::signal update socket");
#endif
    closesocket(d->m_sockUpdate);
}

void KSSLInfoDlg::slotChain(int x)
{
    if(x == 0)
    {
        displayCert(d->_cert);
    }
    else
    {
        QPtrList< KSSLCertificate > cl = d->_cert->chain().getChain();
        cl.setAutoDelete(true);
        for(int i = 0; i < x - 1; i++)
            cl.remove((unsigned int)0);
        KSSLCertificate thisCert = *(cl.at(0));
        cl.remove((unsigned int)0);
        thisCert.chain().setChain(cl);
        displayCert(&thisCert);
    }
}

QUimInputContext::~QUimInputContext()
{
#ifdef ENABLE_DEBUG
    qDebug( "~QUimInputContext()" );
#endif

    contextList.remove( this );

    if ( m_uc )
        uim_release_context( m_uc );

    if ( this == focusedInputContext )
    {
        focusedInputContext = NULL;
        disableFocusedContext = true;
    }

#ifdef Q_WS_X11
    delete mCompose;
#endif
}

void QEventLoop::unregisterSocketNotifier( QSocketNotifier *notifier )
{
    int sockfd = notifier->socket();
    int type = notifier->type();
    if ( sockfd < 0 || type < 0 || type > 2 || notifier == 0 ) {
#if defined(QT_CHECK_RANGE)
	qWarning( "QSocketNotifier: Internal error" );
#endif
	return;
    }

    QPtrList<QSockNot> *list = d->sn_vec[type].list;
    fd_set *fds  =  &d->sn_vec[type].enabled_fds;
    QSockNot *sn;
    if ( ! list )
	return;
    sn = list->first();
    while ( sn && !(sn->obj == notifier && sn->fd == sockfd) )
	sn = list->next();
    if ( !sn ) // not found
	return;

    FD_CLR( sockfd, fds );			// clear fd bit
    FD_CLR( sockfd, sn->queue );
    d->sn_pending_list.removeRef( sn );		// remove from activation list
    list->remove();				// remove notifier found above

    if ( d->sn_highest == sockfd ) {		// find highest fd
	d->sn_highest = -1;
	for ( int i=0; i<3; i++ ) {
	    if ( d->sn_vec[i].list && ! d->sn_vec[i].list->isEmpty() )
		d->sn_highest = QMAX( d->sn_highest,  // list is fd-sorted
				      d->sn_vec[i].list->getFirst()->fd );
	}
    }
}

void HiddenFileView::checkBoxClicked(QCheckBox* chkBox,KToggleAction* action,QLineEdit* edit, int column,QPtrList<QRegExp> & reqExpList,bool b) {
  // We don't save the old state so
  // disable the tristate mode
  chkBox->setTristate(false);
  action->setChecked(b);
  chkBox->setChecked(b);

  HiddenListViewItem* item;
  for (item = static_cast<HiddenListViewItem*>(_dlg->hiddenListView->firstChild());item;
       item = static_cast<HiddenListViewItem*>(item->nextSibling()))
  {
    if (!item->isSelected())
        continue;
        
    if (b == item->isOn(column))
        continue;
            
    if (!b) {
        QRegExp* rx = getRegExpListMatch(item->text(0),reqExpList);
        
        // Perhaps the file was hidden because it started with a dot
        if (!rx && item->text(0)[0]=='.' && _dlg->hideDotFilesChk->isChecked()) {
            int result = KMessageBox::questionYesNo(_dlg,i18n(
                    "<qt>Some files you have selected are hidden because they start with a dot; "
                    "do you want to uncheck all files starting with a dot?</qt>"),i18n("Files Starting With Dot"),i18n("Uncheck Hidden"), i18n("Keep Hidden"));
                
            if (result == KMessageBox::No) {
                QPtrList<HiddenListViewItem> lst = getMatchingItems(QRegExp(".*",false,true));
                deselect(lst);
            } else {
                _dlg->hideDotFilesChk->setChecked(false);
            }
            continue;
        } else {
            if (rx) {
                // perhaps it is matched by a wildcard string
                QString p = rx->pattern();
                if ( p.find("*") > -1 ||
                        p.find("?") > -1 )
                {
                    // TODO after message freeze: why show three times the wildcard string? Once should be enough.
		    // TODO remove <b></b> and use <qt> instead
                    int result = KMessageBox::questionYesNo(_dlg,i18n(
                    "<b></b>Some files you have selected are matched by the wildcarded string <b>'%1'</b>; "
                    "do you want to uncheck all files matching <b>'%1'</b>?").arg(rx->pattern()).arg(rx->pattern()).arg(rx->pattern()),
                    i18n("Wildcarded String"),i18n("Uncheck Matches"),i18n("Keep Selected"));
            
                    QPtrList<HiddenListViewItem> lst = getMatchingItems( *rx );
            
                    if (result == KMessageBox::No) {
                        deselect(lst);
                    } else {
                        setState(lst,column,false);
                        reqExpList.remove(rx);
                        updateEdit(edit, reqExpList);
                    }
                    continue;
                } else {
                    reqExpList.remove(rx);
                    updateEdit(edit, reqExpList);
                }
            }   
        }
    }
    else {
        reqExpList.append( new QRegExp(item->text(0)) );
        updateEdit(edit, reqExpList);
    }
    
    item->setOn(column,b);
  }

  _dlg->hiddenListView->update();
}

//.........这里部分代码省略.........
	out_ << "%                                         %" << endl;
	out_ << "% PMX output generated by \"NoteEdit\"    %" << endl;
	out_ << "%                                         %" << endl;
	out_ << "%-----------------------------------------%" << endl;
	if (pmxOpts_.mLyr) {
		out_ << "---" << endl;
		out_ << "\\input musixtex" << endl;
		out_ << "\\input pmx" << endl;
		out_ << "\\input musixlyr" << endl << endl;
		lyrNames.setAutoDelete(true);
		for (i = 0, staff_elem = staffList_->first(); staff_elem; staff_elem = staffList_->next(), i++) {
			if (!NResource::staffSelExport_[i]) continue;
			voice_elem = staff_elem->getVoiceNr(0);
			if (!(count_of_lyrics = voice_elem->countOfLyricsLines())) continue;
			voice_elem->collectLyrics(lyricslist);
			lyrNames.clear();
			for (j = 0; j < NUM_LYRICS; j++) {
				if (!lyricslist[j].isEmpty()) {
					lyrName = new QString();
					if (count_of_lyrics < 2) {
						lyrName->sprintf("lyrstaff%d", staffsToExport_ - i);
					}
					else {
						lyrName->sprintf("lyrstaff%dverse%d", staffsToExport_ - i, j+1);
					}
					lyrNames.append(lyrName);
					out_ << "\\setlyrics{" << (*lyrName) << "}{" << lyrics2TeX(&(lyricslist[j])) << "}" << endl;
				}
			}
	
			out_ << "\\assignlyrics{" << (staffsToExport_ - i) << "}{";
			while(!lyrNames.isEmpty()) {
				out_ << *(lyrNames.first());
				lyrNames.remove();
				if (!lyrNames.isEmpty()) out_ << ',';
			}
			out_ << '}' << endl << endl;
		}
		out_ << "---" << endl;
	}
/*
	out_ << "---" << endl;
	out_ << "\\def\\mtxInterInstrument#1#2{\\setinterinstrument{#1}{#2\\Interligne}}" << endl;
	out_ << "\\def\\mtxStaffBottom#1{\\staffbotmarg #1\\Interligne}" << endl;
	out_ << "---" << endl << endl;
*/

	out_ << "% nv,noinst,mtrnuml,mtrdenl,mtrnump,mtrdenp,xmtrnum0,isig," << endl;
	out_ << "   " << staffsToExport_ << "    ";
	if (staffsToExport_ == mStaffInf_->getMultiStaffCount()) {
		out_ << staffsToExport_ << "      ";
	}
	else {
		out_ << '-' << mStaffInf_->getMultiStaffCount() << ' ';
		for (i = 0; i < mStaffInf_->getMultiStaffCount(); i++) {
			out_ << mStaffInf_->getStaffCount(mStaffInf_->getMultiStaffCount()-i-1) << ' ';
		}
	}
        out_ << timesig->getNumerator() << "      " <<  timesig->getDenominator() << "        " <<
		timesig->getNumerator() << "      " <<  timesig->getDenominator();
	acr = voice_elem->determineAnacrusis();
	if (acr>0) {
		out_ << "        " << ((double) acr / (128.0 / (double) timesig->getDenominator())) << "      ";
	}
	else {
		out_ << "        0      ";

void CustomPalette::slotRemoveColor()
{
    int i, j;
    if ( sel_row == -1 || sel_col == -1 )
    {
	//do nothing
    }
    else
    {
        if ( cur_col == 0 )
	{
	    cur_col = numCols() - 1;
	    cur_row--;
	}
	else
	    cur_col--;

        color_matrix[sel_row][sel_col] = invalid_color;
	color_names[sel_row][sel_col] = "";
	alpha_matrix[sel_row][sel_col] = -1;
	updateCell( sel_row, sel_col );

	QPtrList<Color> cl = k_toon -> document() -> getPalette() -> getColors();
	cl.setAutoDelete( true );
	cl.remove( map2Dto1D( sel_row, sel_col ) );
	cl.setAutoDelete( false );
	k_toon -> document() -> getPalette() -> setColors( cl );

	for ( i = sel_row; i < numRows(); i++ )
	{
	    if ( i == sel_row )
	    {
	        for ( j = sel_col; j < numCols(); j++ )
	        {
		    if ( j == numCols() - 1 && i < numRows() - 1 )
		    {
		        color_matrix[i][j] = color_matrix[i + 1][0];
		    	color_names[i][j] = color_names[i + 1][0];
			alpha_matrix[i][j] = alpha_matrix[i + 1][0];
		    	updateCell( i, j );
		    }
		    else if ( j < numCols() - 1 )
		    {
		    	color_matrix[i][j] = color_matrix[i][j + 1];
		    	color_names[i][j] = color_names[i][j + 1];
			alpha_matrix[i][j] = alpha_matrix[i][j + 1];
		    	updateCell( i, j );
		    }
		    else if ( j == numCols() - 1 && i < numRows() - 1 )
		    {
		    	color_matrix[i][j] = invalid_color;
		    	color_names[i][j] = "";
			alpha_matrix[i][j] = -1;
		    	updateCell( i, j );
		    }
	    	}
	    }
	    else
	    {
	        for ( j = 0; j < numCols(); j++ )
	        {
		    if ( j == numCols() - 1 && i < numRows() - 1 )
		    {
		        color_matrix[i][j] = color_matrix[i + 1][0];
		    	color_names[i][j] = color_names[i + 1][0];
			alpha_matrix[i][j] = alpha_matrix[i + 1][0];
		    	updateCell( i, j );
		    }
		    else if ( j < numCols() - 1 )
		    {
		    	color_matrix[i][j] = color_matrix[i][j + 1];
		    	color_names[i][j] = color_names[i][j + 1];
			alpha_matrix[i][j] = alpha_matrix[i][j + 1];
		    	updateCell( i, j );
		    }
		    else if ( j == numCols() - 1 && i < numRows() - 1 )
		    {
		    	color_matrix[i][j] = invalid_color;
		    	color_names[i][j] = "";
			alpha_matrix[i][j] = -1;
		    	updateCell( i, j );
		    }
	    	}
	    }
	}
	if ( cur_col == sel_col && cur_row == sel_row )
	{
	    sel_row = -1;
	    sel_col = -1;
	    updateCell( cur_row, cur_col );
	}
    }
}

//.........这里部分代码省略.........
						break;
					}
				}
			}
			++it;
		}

		if ( nodesc )
			desc = new EventDesc();
		if ( parse ) {
			if ( !safeLen( buf+10 ) )
				goto stop;
			desc->duration = getTime( buf+7 );
			if ( !safeLen( buf+11 ) )
				goto stop;
			desc->running = getBits(buf,80,3);
			desc->sid = sid;
			desc->tid = tid;
			desc->tsid = tsid;
			desc->nid = nid;
			desc->lsn = lsn;
			desc->sn = sn;
			desc->eid = eid;
			desc->loop = cdt;
		}

		if ( desc->sn != sn ) {
			slist->unlock();
			return false;
		}
		if ( !safeLen( buf+12 ) )
			goto stop;
		loop = getBits(buf,84,12);
		buf +=12;
		length -=(12+loop);
		while ( loop>0 ) {
			if ( parse ) {
				if ( !safeLen( buf+1 ) )
					goto stop;
				switch ( getBits(buf,0,8) ) {
					case 0x4D :
						if ( !shortEventDesc( buf, desc ) )
							goto stop;
						break;
					case 0x4E :
						if ( !extEventDesc( buf, desc ) )
							goto stop;
						break;
					default :
						break;
				}
			}
			if ( !safeLen( buf+2 ) )
				goto stop;
			loop -=( getBits(buf,8,8)+2 );
			buf +=( getBits(buf,8,8)+2 );
		}
//out:
		if ( parse ) {
			if ( !nodesc ) {
				if ( start==desc->startDateTime )
					goto ifend;
				currentEvents->take( currentEvents->find( desc ) );
			}
			desc->startDateTime = start;
			for ( i=0; i<(int)currentEvents->count(); i++ ) {
				itdesc = currentEvents->at(i);
				if ( desc->startDateTime<itdesc->startDateTime ) {
					currentEvents->insert( i, desc );
					break;
				}
				itdesc = 0;
			}
			if ( !itdesc )
				currentEvents->append( desc );
		}
ifend:
		if ( parse )
			++(desc->sn);
		if ( nodesc ) {
			cur = QDateTime::currentDateTime();
			dt = desc->startDateTime;
			sec = desc->duration.hour()*3600+desc->duration.minute()*60+desc->duration.second();
			if ( dt.addSecs( sec )<cur || desc->title.length()<3 ) {
				currentEvents->remove( desc );
			}
			else
				desc->source = currentSrc->getSource();
		}

	}
	slist->unlock();
	return true;
stop:
	slist->unlock();
	fprintf( stderr, "Stop parsing EIT (%d:%d)\n", adapter, tuner );
	if ( nodesc )
		delete desc;
	return false;
}