QFile and drawText()

[seniorc]

Hello,

I have a problem qfile.Here is my code:

void Graph::readWrite(const QString &fileLoca){
    QFile inFile(fileLoca);
 
    if(inFile.open(QIODevice::ReadWrite | QIODevice::Text)){
 
        QTextStream in(&inFile);
        source = in.readLine();
        while(!in.atEnd()){
            QString v,m;
            QString line = in.readLine();
            double price;
            v = str_split(line,'-');
            m = str_split(line,':');
            price = line.toDouble();
            this->addEdge(v,m,price);
        }
 
        in << endl << "cost : " << kruskal();
        inFile.close();
 
    }
 
}

void Graph::readWrite(const QString &fileLoca){
    QFile inFile(fileLoca);

    if(inFile.open(QIODevice::ReadWrite | QIODevice::Text)){

        QTextStream in(&inFile);
        source = in.readLine();
        while(!in.atEnd()){
            QString v,m;
            QString line = in.readLine();
            double price;
            v = str_split(line,'-');
            m = str_split(line,':');
            price = line.toDouble();
            this->addEdge(v,m,price);
        }

        in << endl << "cost : " << kruskal();
        inFile.close();

    }

}

To copy to clipboard, switch view to plain text mode 

line 18 "endl" not working and my file failing.for example here is my file.

D
A-B:2
A-D:5
A-F:6
B-C:8
B-D:6
C-D:3
C-E:5
D-E:6
D-F:7
E-F:2

and i want this

D
A-B:2
A-D:5
A-F:6
B-C:8
B-D:6
C-D:3
C-E:5
D-E:6
D-F:7
E-F:2
cost : 17

but i see this

DA-B:2A-D:5A-F:6B-C:8B-D:6C-D:3C-E:5D-E:6D-F:7E-F:2cost : 17

What is my problem ?

and my second problem i'm working draw text on my graphic screen and i use qpainter class and drawText().
I have two point and string so i used drawtext(QPointF(x,y),string) and this func. begin write (x,y) point but i want (x,y) point is my string center point.How can i do this.

Thanks.