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replaced obsolete QXmlDefaultHandler by QXmlStreamReader in PChangeDefaultPathsDialog.

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This commit is contained in:
suter_a 2020-06-18 20:44:08 +02:00
parent 5e9e075133
commit c70e92659d
2 changed files with 86 additions and 94 deletions
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152
src/musredit_qt5/musredit/PChangeDefaultPathsDialog.cpp
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@ -27,21 +27,76 @@
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QString>
#include <QStringRef>
#include <QMessageBox>
#include <QFileDialog>
#include <QListWidgetItem>
#include <QIODevice>
#include <QFile>
#include <QProcessEnvironment>
#include <QTextStream>
#include "PChangeDefaultPathsDialog.h"
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/**
* @brief PDefaultPathsXMLParser::PDefaultPathsXMLParser
* <p>XML Parser class for the musrfit administration file.
*
* \param fln file name of the musredit startup xml-file
* @param defaultPaths
*/
PDefaultPathsXMLParser::PDefaultPathsXMLParser(PDefaultPaths *defaultPaths) :
PDefaultPathsXMLParser::PDefaultPathsXMLParser(const QString& fln, PDefaultPaths *defaultPaths) :
fDefaultPaths(defaultPaths)
{
fValid = false;
fKeyWord = eEmpty;
QFile file(fln);
if (!file.open(QFile::ReadOnly | QFile::Text)) {
// warning and create default - STILL MISSING
}
fValid = parse(&file);
}
//--------------------------------------------------------------------------
/**
* <p>parse the musrfit startup xml-file.
*
* \param device QFile object of the musrfit startup xml-file
*
* @return true on success, false otherwise
*/
bool PDefaultPathsXMLParser::parse(QIODevice *device)
{
fXml.setDevice(device);
bool expectChars = false;
while (!fXml.atEnd()) {
fXml.readNext();
if (fXml.isStartDocument()) {
startDocument();
} else if (fXml.isStartElement()) {
startElement();
expectChars = true;
} else if (fXml.isCharacters() && expectChars) {
characters();
} else if (fXml.isEndElement()) {
endElement();
expectChars = false;
} else if (fXml.isEndDocument()) {
endDocument();
}
}
if (fXml.hasError()) {
QString msg;
msg = QString("%1 Line %2, column %3").arg(fXml.errorString()).arg(fXml.lineNumber()).arg(fXml.columnNumber());
QMessageBox::critical(0, "**ERROR**", msg, QMessageBox::Ok, QMessageBox::NoButton);
return false;
}
return true;
}
//--------------------------------------------------------------------------
@ -50,6 +105,7 @@ PDefaultPathsXMLParser::PDefaultPathsXMLParser(PDefaultPaths *defaultPaths) :
*/
bool PDefaultPathsXMLParser::startDocument()
{
// nothing to be done here for now
return true;
}
@ -57,13 +113,11 @@ bool PDefaultPathsXMLParser::startDocument()
/**
* <p>Routine called when a new XML tag is found. Here it is used
* to set a tag for filtering afterwards the content.
*
* \param qName name of the XML tag.
*/
bool PDefaultPathsXMLParser::startElement( const QString&, const QString&,
const QString& qName,
const QXmlAttributes& )
bool PDefaultPathsXMLParser::startElement()
{
QStringRef qName = fXml.name();
if (qName == "data_path") {
fKeyWord = eDataPath;
}
@ -75,10 +129,8 @@ bool PDefaultPathsXMLParser::startElement( const QString&, const QString&,
/**
* <p>Routine called when the end XML tag is found. It is used to
* put the filtering tag to 'empty'.
*
* \param qName name of the element.
*/
bool PDefaultPathsXMLParser::endElement( const QString&, const QString&, const QString & )
bool PDefaultPathsXMLParser::endElement()
{
fKeyWord = eEmpty;
@ -89,11 +141,13 @@ bool PDefaultPathsXMLParser::endElement( const QString&, const QString&, const Q
/**
* <p>This routine delivers the content of an XML tag. It fills the
* content into the load data structure.
*
* \param str keeps the content of the XML tag.
*/
bool PDefaultPathsXMLParser::characters(const QString& str)
bool PDefaultPathsXMLParser::characters()
{
QString str = *fXml.text().string();
if (str.isEmpty())
return true;
switch (fKeyWord) {
case eDataPath:
fDefaultPaths->appendDefaultPath(str);
@ -115,67 +169,10 @@ bool PDefaultPathsXMLParser::endDocument()
return true;
}
//--------------------------------------------------------------------------
/**
* <p>Report XML warnings.
*
* \param exception holds the information of the XML warning
*/
bool PDefaultPathsXMLParser::warning( const QXmlParseException & exception )
{
QString msg;
msg = QString("**WARNING** while parsing musrfit_startup.xml in line no %1\n").arg(exception.lineNumber());
msg += QString("**WARNING MESSAGE** ") + exception.message();
qWarning() << endl << msg << endl;
QMessageBox::warning(0, "WARNING", msg, QMessageBox::Ok, QMessageBox::NoButton);
return true;
}
//--------------------------------------------------------------------------
/**
* <p>Report recoverable XML errors.
*
* \param exception holds the information of the XML recoverable errors.
*/
bool PDefaultPathsXMLParser::error( const QXmlParseException & exception )
{
QString msg;
msg = QString("**ERROR** while parsing musrfit_startup.xml in line no %1\n").arg(exception.lineNumber());
msg += QString("**ERROR MESSAGE** ") + exception.message();
qWarning() << endl << msg << endl;
QMessageBox::critical(0, "ERROR", msg, QMessageBox::Ok, QMessageBox::NoButton);
return true;
}
//--------------------------------------------------------------------------
/**
* <p>Report fatal XML errors.
*
* \param exception holds the information of the XML fatal errors.
*/
bool PDefaultPathsXMLParser::fatalError( const QXmlParseException & exception )
{
QString msg;
msg = QString("**FATAL ERROR** while parsing musrfit_startup.xml in line no %1\n").arg(exception.lineNumber());
msg += QString("**FATAL ERROR MESSAGE** ") + exception.message();
qWarning() << endl << msg << endl;
QMessageBox::critical(0, "FATAL ERROR", msg, QMessageBox::Ok, QMessageBox::NoButton);
return true;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/**
* @brief PDefaultPaths::PDefaultPaths
*/
PDefaultPaths::PDefaultPaths() : QObject()
{
fValid = true;
@ -204,13 +201,8 @@ PDefaultPaths::PDefaultPaths() : QObject()
fPrefPathName = pathFln;
// read musrfit_startup.xml and extract default data file search paths
PDefaultPathsXMLParser handler(this);
QFile xmlFile(fPrefPathName);
QXmlInputSource source( &xmlFile );
QXmlSimpleReader reader;
reader.setContentHandler( &handler );
reader.setErrorHandler( &handler );
if (!reader.parse( source )) {
PDefaultPathsXMLParser handler(fPrefPathName, this);
if (!handler.isValid()) {
fValid = false;
QMessageBox::critical(0, "ERROR",
"Error parsing musrfit_startup.xml settings file.\nProbably a few things will not work porperly.\nPlease fix this first.",

24
src/musredit_qt5/musredit/PChangeDefaultPathsDialog.h
View File

@ -32,34 +32,34 @@
#include <QDialog>
#include <QMessageBox>
#include <QtXml>
#include <QXmlStreamReader>
#include <QIODevice>
#include "ui_PChangeDefaultPathsDialog.h"
class PDefaultPaths;
//---------------------------------------------------------------------------
class PDefaultPathsXMLParser : public QXmlDefaultHandler
class PDefaultPathsXMLParser
{
public:
PDefaultPathsXMLParser(PDefaultPaths *defaultPaths);
PDefaultPathsXMLParser(const QString &fln, PDefaultPaths *defaultPaths);
virtual ~PDefaultPathsXMLParser() {}
virtual bool isValid() { return fValid; }
private:
enum EAdminKeyWords {eEmpty, eDataPath};
bool parse(QIODevice *device);
bool startDocument();
bool startElement( const QString&, const QString&, const QString& ,
const QXmlAttributes& );
bool endElement( const QString&, const QString&, const QString& );
bool characters(const QString&);
bool startElement();
bool endElement();
bool characters();
bool endDocument();
bool warning( const QXmlParseException & exception );
bool error( const QXmlParseException & exception );
bool fatalError( const QXmlParseException & exception );
QXmlStreamReader fXml; ///< xml stream reader object
bool fValid; ///< flag showing if XML read has been successful
EAdminKeyWords fKeyWord; ///< key word tag to know how to handle the content
PDefaultPaths *fDefaultPaths; ///< keeps the default search paths for the data files
};