QT-File

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file = new QFile();

int Editor::openFile()
{
    QString fileName = QFileDialog::getOpenFileName(this,"Open File",QDir::currentPath());
    this->file->setFileName(fileName);
    this->fileInfo = new QFileInfo(fileName);
//    qDebug()<<editor->fileInfo->fileName()<<editor->fileInfo->absolutePath()<<editor->fileInfo->baseName();

    if(this->file->open(QIODevice::ReadOnly))
    {

        QTextStream in(this->file);
        this->setPlainText(in.readAll());
//        qDebug()<<editor->file->fileName();
        this->file->close();
        return 1;
    }
    else
    {
        qDebug()<<"Open failed";
        return 0;
    }
}

int Editor::saveFile()
{
    QString fileName;
    if(!this->file->exists())
    {
        fileName = QFileDialog::getSaveFileName(this,"Save File",QDir::currentPath());
        this->file->setFileName(fileName);
        this->fileInfo = new QFileInfo(fileName);
    }

    if(this->file->open(QIODevice::WriteOnly))
    {
        QTextStream out(this->file);
        out<<this->toPlainText();
        this->file->close();
        this->isSaved = true;
        return 1;
    }
    else {
        qDebug() << "Save failed";
        return 0;
    }
}