source: trunk/src/xmlpatterns/api/qxmlformatter.cpp@ 651

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#include <QtDebug>

#include "qxmlformatter.h"
#include "qxpathhelper_p.h"
#include "qxmlserializer_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

class QXmlFormatterPrivate : public QXmlSerializerPrivate
{
public:
    inline QXmlFormatterPrivate(const QXmlQuery &q,
                                QIODevice *const outputDevice);

    int             indentationDepth;
    int             currentDepth;
    QString         characterBuffer;
    QString         indentString;

    /**
     * Whether we /have/ sent nodes like processing instructions and comments
     * to QXmlSerializer.
     */
    QStack<bool>    canIndent;
};

QXmlFormatterPrivate::QXmlFormatterPrivate(const QXmlQuery &query,
                                           QIODevice *const outputDevice) : QXmlSerializerPrivate(query, outputDevice)
                                                                          , indentationDepth(4)
                                                                          , currentDepth(0)
{
    indentString.reserve(30);
    indentString.resize(1);
    indentString[0] = QLatin1Char('\n');
    canIndent.push(false);
}

/*!
   \class QXmlFormatter
   \brief The QXmlFormatter class is an implementation of QXmlSerializer for transforming XQuery output into formatted XML.
   \reentrant
   \since 4.4
   \ingroup xml-tools

   QXmlFormatter is a subclass of QXmlSerializer that formats the XML
   output to make it easier for humans to read.

   QXmlSerializer outputs XML without adding unnecessary whitespace.
   In particular, it does not add \e {newlines} and indentation.
   To make the XML output easier to read, QXmlFormatter adds \e{newlines}