Error in compilation using methods in QtConcurrent

[DrewVal]

I'm trying to use QtConcurrent::map to concurrently run a image conversion on each of the selected files that the user inputs to my app. For this I have a class that gets all the info about where the file will be stored and other stuff, and I have two methods for the conversion:

void ConvertThread::convert()
void ConvertThread::convertFileToPdf(const QString& file)

In the convert method, I set a QFuture<void> f = QtConcurrent::map(fileList, &ConvertThread::convertFileToPdf), where fileList is a QList<String>

I've been using code from Qt examples on how to do this and I think I got it right, but for some reason when I try to compile I'm getting this error:

/Library/Frameworks/QtCore.framework/Headers/qtconcurrentmapkernel.h: In member function 'bool QtConcurrent::MapKernel<Iterator, MapFunctor>::runIteration(Iterator, int, void*) [with Iterator = QList<QString>::iterator, MapFunctor = void (ConvertThread::*)(const QString&)]':
convertthread.cpp:39: instantiated from here
/Library/Frameworks/QtCore.framework/Headers/qtconcurrentmapkernel.h:73: error: must use '.*' or '->*' to call pointer-to-member function in '((QtConcurrent::MapKernel<QList<QString>::iterator, void (ConvertThread::*)(const QString&)>*)this)->QtConcurrent::MapKernel<QList<QString>::iterator, void (ConvertThread::*)(const QString&)>::map (...)'
make[1]: *** [debug/convertthread.o] Error 1

If anyone has experience with using QtConcurrent this way, I'd really appreciate some help here. :)

ps: I know some of the other code isn't connected yet :p

convertthread.cpp:


#include "convertthread.h"
#include <Magick++.h>

using namespace Magick;

void ConvertThread::enqueueFile(const QString& path) {
fileList << path;
}

void ConvertThread::convert() {
QFuture<void> f = QtConcurrent::map(fileList, &ConvertThread::convertFileToPdf);
converter->setFuture(f);
}

void ConvertThread::sendFinishedSignal() {
emit imageStatus();
}

void ConvertThread::setOutputDir(const QString& folder) {
destFolder = folder;
}

void ConvertThread::convertFileToPdf(const QString& file) {
QString outPath;
QFileInfo *info = new QFileInfo(file);
QString fileName = info->baseName();
outPath = destFolder + QDir::separator() + fileName + ".pdf";
delete info;

Image *image = new Image();
try {
image->read(qPrintable(file));
image->magick("PDF");
image->write(qPrintable(outPath));
}
catch(Exception &error_) {
return;
}
delete image;
}


convertthread.h:


#ifndef CONVERTTHREAD_H
#define CONVERTTHREAD_H

#include <QObject>
#include <QtGui>
#include <QFuture>
#include <QFutureWatcher>

class ConvertThread : public QObject
{
Q_OBJECT
public:
ConvertThread() {
converter = new QFutureWatcher<void>(this);
connect(converter, SIGNAL(resultReadyAt(int)), SLOT(sendFinishedSignal()));
}
~ConvertThread() {
converter->cancel();
converter->waitForFinished();
}
void convert();
void enqueueFile(const QString& path);
void setOutputDir(const QString& folder);
void convertFileToPdf(const QString& file);

private:
QFutureWatcher<void> *converter;
QList<QString> fileList;
QString destFolder;

signals:
void imageStatus();

public slots:
void sendFinishedSignal();
};

#endif // CONVERTTHREAD_H

[mlheese]

I have the exact same problem and can't seem to figure out why it won't compile.