Originally Posted by nicolai

Use QIODevice::ReadOnly instead.

maybe
#include <QTextStream>

Originally Posted by D-Iivil

I have included the QTextStream in header among others:
#include <QtCore>
#include <QMainWindow>
#include <QProgressDialog>
#include <QColorDialog>
#include <QHash>
#include <QFile>
#include <QTextStream>

But still have the errors.

Originally Posted by nicolai

Ah, funny bug:

if (!file.open (IO_ReadOnly))
// didn't work
QTextStream stream ( &file );
....
while( !stream.eof() ) {

stream is only declared in the "if-block" scope. The same like this.

if (!file.open (IO_ReadOnly))
QTextStream stream ( &file );
....
while( !stream.eof() ) {

or

if (!file.open (IO_ReadOnly))
{
QTextStream stream ( &file );
}

....
while( !stream.eof() ) {

would produce an error :-)

Originally Posted by D-Iivil

However the function does not work, I get nothing into QString called "oldfont1" when trying to do it like this:

Code:

    QFile file("/etc/hildon/theme/colors.config");
    QTextStream stream ( &file );
    QString line;
    QHash<QString, QString> variables;
    while( !stream.atEnd()) {
         line = stream.readLine();
         QStringList splittedLine = line.split("=");
         variables.insert(splittedLine.at(0), splittedLine.at(1));
    }
    file.close();
    QString oldfont1 = variables.value("DefaultTextColor");

Originally Posted by Berserk

Although I didn't see it in the above code, does it contain something like the following?

Code:

file.open(QFile::ReadOnly);

I did see some "if not opened in readonly" things in the last posts, but not an explicit .open() function.

Or does a QFile open the file directly after declaring it?

I thought that.. if it's not opened, nothing is read, and the QString stays empty.

Originally Posted by Diph

Rule number one: look from API first.

Usually there are examples how to use the class, for example QFile.

Originally Posted by D-Iivil

Problem (for me) is that most of the docs are written in the way that the writer assumes that reader already knows how things are working and therefore they are lacking the basic guides like:
1. create QFile "object" or what ever it's called
2. you must open the file with separate command so type file.open
3. do something with the file you just opened
etc etc....

The following example reads a text file line by line:

PHP Code:

QFile file("in.txt");
if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
     return;

while (!file.atEnd()) {
    QByteArray line = file.readLine();
    process_line(line);
} 


Originally Posted by Diph

Sorry for this. :P