Class QArchive::Reader

The Reader makes it easy for you to list all files in an archive
, This can be very usefull sometimes. ❤️

Table of Contents

• Class Anatomy
• Usage
• Handling error's
• A Simple Example

Class Anatomy

Constructors

Reader(QObject *parent = NULL)
Reader(const QString&)	Sets a single archive and Constructs the reader.

Methods

void setArchive(const QString&)	Sets a single archive.
const QStringList& listFiles()	Get the files stored in this class.
void clear()	Clears everything stored in this class.

Slots

void start(void)	Starts or resumes the reader. (Inherited from QThread)
Stoping and Terminating	Refer QtDocs for information on stoping QThread.

Signals

void archiveFiles(const QString& , const QStringList&)	Emitted when we got all the files from the archive.
void error(short , const QString&)	Emitted when something goes wrong.

Usage

Step #1 : Construct.

QArchive::Reader ArchiveReader("test.7z");

Step #2 : Connect Callbacks.

QObject::connect(&ArchiveReader, &QArchive::Reader::archiveFiles, 
       [&](QString archive, QStringList files) {
        qDebug() << archive << " :: ";
        qDebug() << files;
        ArchiveReader.quit();
        app.quit();
    });

Step #3 : Start the Reader.

ArchiveReader.start() // never use .run() method directly.

Example

#include <QCoreApplication>
#include <QDebug>
#include "QArchive.hpp"

int main(int argc, char** argv)
{
    QCoreApplication app(argc, argv);

    /*
     * 1.Construct
    */
    QArchive::Reader e("test.7z");


    /*
     * 2.Connect Callbacks
    */

    QObject::connect(&e, &QArchive::Reader::archiveFiles,
    [&](QString archive, QStringList files) {
        qDebug() << archive << " :: ";
        qDebug() << files;
        e.quit();
        app.quit();
    });

    // emitted when something goes wrong
    QObject::connect(&e, &QArchive::Reader::error,
    [&](short code, QString file) {
        switch(code) {
        case QArchive::ARCHIVE_READ_ERROR:
            qDebug() << "unable to find archive :: " << file;
            app.quit();
            break;
        case QArchive::ARCHIVE_QUALITY_ERROR:
            qDebug() << "bad archive! :: " << file;
            app.quit();
            break;
        case QArchive::ARCHIVE_UNCAUGHT_ERROR:
            qDebug() << "fatal error. :: " << file;
            app.quit();
            break;
        default:
            qDebug() << "unknown error. :: " << file;
            app.quit();
            break;
        }
    });

    /*
     * 3.Start extraction!
    */
    e.start();
    return app.exec();
}