C++ QValueStack类代码示例

void AntProjectPart::populateProject()
{
  QApplication::setOverrideCursor(Qt::waitCursor);

  QValueStack<QString> s;
  int prefixlen = m_projectDirectory.length()+1;
  s.push(m_projectDirectory);

  QDir dir;
  do
  {
    dir.setPath(s.pop());
    kdDebug() << "Examining: " << dir.path() << endl;
    const QFileInfoList *dirEntries = dir.entryInfoList();
    QPtrListIterator<QFileInfo> it(*dirEntries);
    for (; it.current(); ++it)
    {
      QString fileName = it.current()->fileName();
      if (fileName == "." || fileName == "..")
        continue;
      QString path = it.current()->absFilePath();
      if (it.current()->isDir())
      {
        kdDebug() << "Pushing: " << path << endl;
        s.push(path);
      }
      else
      {
        kdDebug() << "Adding: " << path << endl;
        m_sourceFiles.append(path.mid(prefixlen));
      }
    }
  }
  while (!s.isEmpty());

  QApplication::restoreOverrideCursor();
}

bool QExp::isLast(QValueStack<char> opr){
	int ins=0;
	bool b=true;
	while(b && !opr.empty()){
		if(opr.top()==tLpr){
			if(ins == 0)
				b= true;
			else
				ins--;
		} else if(opr.top()==tLpr)
			ins++;
		else if(opr.top()==tComa)
			b= false;
		else if(opr.top()==tEof)
			b= false;
		opr.pop();
	}
	return b;
}

/**
   \internal
*/
bool GetOpt::parse( bool untilFirstSwitchOnly )
{
    //    qDebug( "parse(%s)", args.join( QString( "," ) ).ascii() );
    // push all arguments as we got them on a stack
    // more pushes might following when parsing condensed arguments
    // like --key=value.
    QValueStack<QString> stack;
    {
	QStringList::const_iterator it = args.fromLast();
	const QStringList::const_iterator end = args.end();
	while ( it != end ) {
	    stack.push( *it );
	    --it;
	}
    }

    const OptionConstIterator obegin = options.begin();
    const OptionConstIterator oend = options.end();
    enum { StartState, ExpectingState, OptionalState } state = StartState;
    Option currOpt;
    enum TokenType { LongOpt, ShortOpt, Arg, End } t, currType = End;
    bool extraLoop = true; // we'll do an extra round. fake an End argument
    while ( !stack.isEmpty() || extraLoop ) {
	QString a;
	QString origA;
	// identify argument type
	if ( !stack.isEmpty() ) {
	    a = stack.pop();
	    currArg++;
	    origA = a;
	    //	    qDebug( "popped %s", a.ascii() );
	    if ( a.startsWith( QString::fromLatin1( "--" ) ) ) {
		// recognized long option
		a = a.mid( 2 );
		if ( a.isEmpty() ) {
		    qWarning( "'--' feature not supported, yet" );
		    exit( 2 );
		}
		t = LongOpt;
		// split key=value style arguments
		int equal = a.find( '=' );
		if ( equal >= 0 ) {
		    stack.push( a.mid( equal + 1 ) );
		    currArg--;
		    a = a.left( equal );
		}
	    } else if ( a.length() == 1 ) {
		t = Arg;
	    } else if ( a[0] == '-' ) {
#if 0 // compat mode for -long style options
		if ( a.length() == 2 ) {
		    t = ShortOpt;
		    a = a[1];
		} else {
		    a = a.mid( 1 );
		    t = LongOpt;
		    // split key=value style arguments
		    int equal = a.find( '=' );
		    if ( equal >= 0 ) {
			stack.push( a.mid( equal + 1 ) );
			currArg--;
			a = a.left( equal );
		    }
		}
#else
		// short option
		t = ShortOpt;
		// followed by an argument ? push it for later processing.
		if ( a.length() > 2 ) {
		    stack.push( a.mid( 2 ) );
		    currArg--;
		}
		a = a[1];
#endif
	    } else {
		t = Arg;
	    }
	} else {
	    // faked closing argument
	    t = End;
	}
	// look up among known list of options
	Option opt;
	if ( t != End ) {
	    OptionConstIterator oit = obegin;
	    while ( oit != oend ) {
		const Option &o = *oit;
		if ( ( t == LongOpt && a == o.lname ) || // ### check state
		     ( t == ShortOpt && a[0].unicode() == o.sname ) ) {
		    opt = o;
		    break;
		}
		++oit;
	    }
	    if ( t == LongOpt && opt.type == OUnknown ) {
		if ( currOpt.type != OVarLen ) {
		    qWarning( "Unknown option --%s", a.ascii() );
//.........这里部分代码省略.........

// Print a range of lines to a printer.
int QsciPrinter::printRange(QsciScintillaBase *qsb, int from, int to)
{
    // Sanity check.
    if (!qsb)
        return false;

    // Setup the printing area.
    QRect def_area;

    def_area.setX(0);
    def_area.setY(0);

    QPaintDeviceMetrics metrics(this);
    def_area.setWidth(metrics.width());
    def_area.setHeight(metrics.height());

    // Get the page range.
    int pgFrom, pgTo;

    pgFrom = fromPage();
    pgTo = toPage();

    // Find the position range.
    long startPos, endPos;

    endPos = qsb->SendScintilla(QsciScintillaBase::SCI_GETLENGTH);

    startPos = (from > 0 ? qsb -> SendScintilla(QsciScintillaBase::SCI_POSITIONFROMLINE,from) : 0);

    if (to >= 0)
    {
        long toPos = qsb -> SendScintilla(QsciScintillaBase::SCI_POSITIONFROMLINE,to + 1);

        if (endPos > toPos)
            endPos = toPos;
    }

    if (startPos >= endPos)
        return false;

    QPainter painter(this);
    bool reverse = (pageOrder() == LastPageFirst);
    bool needNewPage = false;

    qsb -> SendScintilla(QsciScintillaBase::SCI_SETPRINTMAGNIFICATION,mag);
    qsb -> SendScintilla(QsciScintillaBase::SCI_SETPRINTWRAPMODE,wrap);

    for (int i = 1; i <= numCopies(); ++i)
    {
        // If we are printing in reverse page order then remember the start
        // position of each page.
        QValueStack<long> pageStarts;

        int currPage = 1;
        long pos = startPos;

        while (pos < endPos)
        {
            // See if we have finished the requested page range.
            if (pgTo > 0 && pgTo < currPage)
                break;

            // See if we are going to render this page, or just see how much
            // would fit onto it.
            bool render = false;

            if (pgFrom == 0 || pgFrom <= currPage)
            {
                if (reverse)
                    pageStarts.push(pos);
                else
                {
                    render = true;

                    if (needNewPage)
                    {
                        if (!newPage())
                            return false;
                    }
                    else
                        needNewPage = true;
                }
            }

            QRect area = def_area;

            formatPage(painter,render,area,currPage);
            pos = qsb -> SendScintilla(QsciScintillaBase::SCI_FORMATRANGE,render,&painter,area,pos,endPos);

            ++currPage;
        }

        // All done if we are printing in normal page order.
        if (!reverse)
            continue;

        // Now go through each page on the stack and really print it.
        while (!pageStarts.isEmpty())
        {
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        // is there anything at all at this value
        /* see above for meaning of 16 */

        if( data->cellCoord( dataset, value, vValY, 1 ) &&
            QVariant::Double == vValY.type() ){
            _startAngles[ value ] = currentValue;
            const double cellValue = fabs( vValY.toDouble() );
            _angleLens[ value ] = ( int ) floor( cellValue * sectorsPerValue + 0.5 );
            atLeastOneValue = true;
        } else { // mark as non-existent
            _angleLens[ value ] = 0;
            if ( value > 0 )
                _startAngles[ value ] = _startAngles[ value - 1 ];
            else
                _startAngles[ value ] = currentValue;
        }

        currentValue = _startAngles[ value ] + _angleLens[ value ];
    }

    // If there was no value at all, bail out, to avoid endless loops
    // later on (e.g. in findPieAt()).
    if( !atLeastOneValue )
        return;


    // Find the backmost pie which is at +90° and needs to be drawn
    // first
    int backmostpie = findPieAt( 90 * 16 );
    // Find the frontmost pie (at -90°/+270°) that should be drawn last
    int frontmostpie = findPieAt( 270 * 16 );
    // and put the backmost pie on the TODO stack to initialize it,
    // but only if it is not the frontmostpie
    QValueStack < int > todostack;
    if ( backmostpie != frontmostpie )
        todostack.push( backmostpie );
    else {
        // Otherwise, try to find something else
        int leftOfCurrent = findLeftPie( backmostpie );
        if ( leftOfCurrent != frontmostpie ) {
            todostack.push( leftOfCurrent );
        } else {
            int rightOfCurrent = findRightPie( backmostpie );
            if ( rightOfCurrent != frontmostpie ) {
                todostack.push( rightOfCurrent );
            }
        }
        // If we get here, there was nothing else, and we will bail
        // out of the while loop below.
    }

    // The list with pies that have already been drawn

    QValueList < int > donelist;

    // Draw pies until the todostack is empty or only the frontmost
    // pie is there
    while ( !todostack.isEmpty() &&
            !( ( todostack.count() == 1 ) &&
                ( ( todostack.top() == frontmostpie ) ) ) ) {
        // The while loop cannot be cancelled if frontmostpie is on
        // top of the stack, but this is also backmostpie (can happen
        // when one of the pies covers more than 1/2 of the circle. In
        // this case, we need to find something else to put on the
        // stack to get things going.

static void startTokenizer( const char *fileName, int (*getCharFunc)() )
{
    yyInPos = 0;
    getChar = getCharFunc;

    yyFileName = fileName;
    yyCh = getChar();
    yySavedBraceDepth.clear();
    yySavedParenDepth.clear();
    yyBraceDepth = 0;
    yyParenDepth = 0;
    yyCurLineNo = 1;
    yyBraceLineNo = 1;
    yyParenLineNo = 1;
}

static int getToken()
{
    const char tab[] = "abfnrtv";
    const char backTab[] = "\a\b\f\n\r\t\v";
    uint n;

    yyIdentLen = 0;
    yyCommentLen = 0;
    yyStringLen = 0;

    while ( yyCh != EOF ) {
	yyLineNo = yyCurLineNo;

	if ( isalpha(yyCh) || yyCh == '_' ) {
	    do {
		if ( yyIdentLen < sizeof(yyIdent) - 1 )
		    yyIdent[yyIdentLen++] = (char) yyCh;
		yyCh = getChar();
	    } while ( isalnum(yyCh) || yyCh == '_' );
	    yyIdent[yyIdentLen] = '\0';

	    switch ( yyIdent[0] ) {
	    case 'Q':
		if ( strcmp(yyIdent + 1, "_OBJECT") == 0 ) {
		    return Tok_Q_OBJECT;
		} else if ( strcmp(yyIdent + 1, "T_TR_NOOP") == 0 ) {
		    return Tok_tr;
		} else if ( strcmp(yyIdent + 1, "T_TRANSLATE_NOOP") == 0 ) {
		    return Tok_translate;
		}
		break;
	    case 'T':
		// TR() for when all else fails
		if ( qstricmp(yyIdent + 1, "R") == 0 )
		    return Tok_tr;
		break;
	    case 'c':
		if ( strcmp(yyIdent + 1, "lass") == 0 )
		    return Tok_class;
		break;
	    case 'f':
		/*
		  QTranslator::findMessage() has the same parameters as
		  QApplication::translate().
		*/
		if ( strcmp(yyIdent + 1, "indMessage") == 0 )
		    return Tok_translate;
		break;
            case 'i':
                /* FOR KDE APPS */
                if ( strcmp( yyIdent + 1,  "8n") == 0 )
                    return Tok_translate;
                break;
	    case 'n':
		if ( strcmp(yyIdent + 1, "amespace") == 0 )
		    return Tok_namespace;
		break;
	    case 'r':
		if ( strcmp(yyIdent + 1, "eturn") == 0 )
		    return Tok_return;
		break;
	    case 's':
		if ( strcmp(yyIdent + 1, "truct") == 0 )
		    return Tok_class;
		break;
	    case 't':
		if ( strcmp(yyIdent + 1, "r") == 0 ) {
		    return Tok_tr;
		} else if ( qstrcmp(yyIdent + 1, "rUtf8") == 0 ) {
		    return Tok_trUtf8;
		} else if ( qstrcmp(yyIdent + 1, "ranslate") == 0 ) {
		    return Tok_translate;
		}
	    }
	    return Tok_Ident;
	} else {
	    switch ( yyCh ) {
	    case '#':
		/*
		  Early versions of lupdate complained about
		  unbalanced braces in the following code:

		      #ifdef ALPHA
			  while ( beta ) {
		      #else
			  while ( gamma ) {
		      #endif
			      delta;
			  }

		  The code contains, indeed, two opening braces for
		  one closing brace; yet there's no reason to panic.

		  The solution is to remember yyBraceDepth as it was
		  when #if, #ifdef or #ifndef was met, and to set
		  yyBraceDepth to that value when meeting #elif or
		  #else.
		*/
		do {
		    yyCh = getChar();
//.........这里部分代码省略.........