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>::iterato r, void (ConvertThread::*)(const QString&)>*)this)->QtConcurrent::MapKernel<QList<QString>::iterato r, 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

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;
}

#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;
}

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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

#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

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[mlheese]

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