Change font of contents in QTextEdit from my application resource - qt

Question

I have Qt Resource file (res.qrc) in my Qt Application. I imported my custom font in resource as below:
:/fonts/aa_marcus_east_syriac.ttf
Also i define in header file:
private:
QFont assyrianEventsAAMarcusEastSyriac;
I used QTextEdit in mainwindow. When user click on a button, my application read a text file. every row in text file should be imported in QTextEdit but some lines should be has aa_marcus_east_syriac.ttf font from my resource. So I wrote this codes:
void Widget::readMonthAssyrianEvents()
{
QStringList eventsList;
eventsList = readEventFile();
ui->notificationTextEdit->setCurrentFont(assyrianEventsAAMarcusEastSyriac);
for (int index = 0; index < eventsList.length(); index++)
{
QString eventType, eventContent;
QStringList tempStringList = eventsList[index].split('|');
eventType = tempStringList[0];
eventContent = tempStringList[1];
if (eventType == "0")
ui->notificationTextEdit->append(eventContent);
}
}
readEventFile() function works fine. It read text file and get all lines as QStringList. the "assyrianEventsAAMarcusEastSyriac" variable initialized in another function called init(). this is init() function:
int id = QFontDatabase::addApplicationFont(":/fonts/aa_marcus_east_syriac.ttf");
QString family = QFontDatabase::applicationFontFamilies(id).at(0);
assyrianEventsAAMarcusEastSyriac.setFamily(family);
assyrianEventsAAMarcusEastSyriac.setPointSize(20);
My problem is that QTextEdit doesn't change font of it's contents to my custom font.
How can I solve this problem? Please help me guys.
Thanks

Answer 1

I think the error is in
QString family = QFontDatabase::applicationFontFamilies(id).at(0);
Have you checked that .at(0) is actually your custom font ?
Most likely you can solve this by calling assyrianEventsAAMarcusEastSyriac.setFamily
with an explicit string of the font family just like
assyrianEventsAAMarcusEastSyriac.setFamily("Marcus East Syriac");
If that doesn't work either, maybe your custom font is malformed or doesn't provide a font family name. Therefore I suggest you to try first with a working font and then eventually go back to custom stuff.