CODEWITHSUNDEEP
c++qtcharqstring
krb686
krb686

Reputation: 1796

How can I convert a char to QString?

Well this proves I'm a noob at coding! I've looked everywhere and still can't get this right. This should be pretty simple.

I have been trying this:

int i;
for(i=0;i<16;i++)
{
  QChar q = QChar(memblock[i]);
  QString s = QString(q);
  QTableWidgetItem *item = new QTableWidgetItem(s);
  ui->tableWidget->setItem(rowCount, colCount, item);
}

So I'm making table items from each string. That's because I also couldn't figure out how to make table items from just a QChar, or plain char.

But each cell ends up with:

Ý

Whereas when I add in:

cout << memblock[i];

It properly shows:

RIFFd2  WAVEfmt

Here is the code that reads in the raw data:

ifstream file (text, ios::in|ios::binary|ios::ate);
if (file.is_open())
{
    size = file.tellg();
    memblock = new char [size];
    file.seekg(0, ios::beg);
    file.read(memblock, size);
    file.close();
}

Also, when I do cout << &memblock[i], for i from 0 to 4 I get: RIFFd2 IFFd2 FFd2 Fd2

And so on.

Upvotes: 0

Views: 1230

Answers (1)

Ivan
Ivan

Reputation: 608

I've managed to use some simplified variant of your code with Qt 4.8.3 and MSVC 2010:

ui.tableWidget->setColumnCount(5);
ui.tableWidget->setRowCount(5);
char *memChunck = new char[25];
for ( int i = 0; i < 25; ++i ) {
    memChunck[i] = i + 65;
}
for ( int i = 0; i < 25; ++i ) {
    QTableWidgetItem *item = new QTableWidgetItem(QString::number( memChunck[i], 16).toUpper() );
    ui.tableWidget->setItem(i / 5, i % 5, item);
}

result view

Upvotes: 3

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