[solved] how to set local fonts

[A Former User]

I am new to Qt. I am not understanding. Please give me some guide.

[quote author="p3c0" date="1411640348"]Hi,

Check "QFontDatabase::addApplicationFont":http://qt-project.org/doc/qt-5/qfontdatabase.html#addApplicationFont.[/quote]

[p3c0]

Do you have a .ttf file for your font ?
Or have you made sure that the font is already available inside Qt ?

[A Former User]

yes i checked tamit fonts (Lohit Tamil) available in qt.

[quote author="p3c0" date="1411709461"]Do you have a .ttf file for your font ?
Or have you made sure that the font is already available inside Qt ?[/quote]

[p3c0]

What does this output ?
@
QFontDatabase d;
foreach(QString fmly, d.families(QFontDatabase::Tamil))
{
qDebug() << fmly;
}
@

[A Former User]

@QFontDatabase d;
foreach(QString fmly, d.families(QFontDatabase::Tamil))
{
qDebug("சென்னை") << fmly;
ui->label1->show();
}@

error:--
/home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:43: error: no match for 'operator<<' in 'qDebug(((const char*)"\37777777740\37777777656\37777777632\37777777740\37777777657\37777777606\37777777740\37777777656\37777777651\37777777740\37777777657\37777777615\37777777740\37777777656\37777777651\37777777740\37777777657\37777777610")) << fmly'-

[quote author="p3c0" date="1411714136"]What does this output ?
@
QFontDatabase d;
foreach(QString fmly, d.families(QFontDatabase::Tamil))
{
qDebug() << fmly;
}
@[/quote]

[p3c0]

No.. Just use as it is as shown earlier. It will just print a list of fonts available under Tamil Writingsystem.

[A Former User]

@QFontDatabase label1;
foreach(QString fmly, label1.families(QFontDatabase::Tamil))
{
//qDebug("சென்னை") << fmly;
qDebug("சென்னை");
ui->label1->show();
}@

no output. getting blank.

bq. bq. bq. Application output:

Starting /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/animation...
சென்னை
சென்னை
சென்னை
சென்னை
சென்னை
சென்னை
சென்னை
சென்னை bq.

[quote author="p3c0" date="1411714136"]What does this output ?
@
QFontDatabase d;
foreach(QString fmly, d.families(QFontDatabase::Tamil))
{
qDebug() << fmly;
}
@[/quote]

[A Former User]

okay i will try now

[A Former User]

bq. 3 errors:

/home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:43: error: invalid use of incomplete type 'struct QDebug'

/usr/include/qt4/QtCore/qglobal.h:1764: error: forward declaration of 'struct QDebug'

/usr/include/qt4/QtCore/qglobal.h:1767: warning: inline function 'QDebug qDebug()' used but never defined [enabled by default]

[quote author="p3c0" date="1411717583"]No.. Just use as it is as shown earlier. It will just print a list of fonts available under Tamil Writingsystem.[/quote]

[p3c0]

#include <QDebug>

[A Former User]

Starting /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/animation...
"Lohit Tamil"
"TAMu_Kadambri"
"TAMu_Kalyani"
"TAMu_Maduram"
"TSCu_Comic"
"TSCu_Paranar [macromedia]"
"TSCu_Paranar [unknown]"
"TSCu_Times"
/home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/animation exited with code 0

[quote author="p3c0" date="1411718354"]#include <QDebug>[/quote]

[A Former User]

Now what i have to do

[A Former User]

tamil fonts are available. now what i have to do. help me please

[p3c0]

Try this:
@
ui->label->setText(QString::fromUtf8("சென்னை"));
@

[A Former User]

Yes i got it now :)
Thank you somuch.. I dont have words.. thank you somuch.. thanks to you all.

[quote author="p3c0" date="1411721384"]Try this:
@
ui->label->setText(QString::fromUtf8("சென்னை"));
@[/quote]

[p3c0]

That's fine :)
Please mark the post as solved.
Happy Coding...

[A Former User]

okay.. :)

Happy

[vrgovinda]

I'm not a developer. I'm using Telegram app for instant messaging. I believe it uses Qt interface. In Debian, we have something called 'qt5ct' through which we can change Qt interface settings. When I change the font in qt5ct, it gets reflected in KDE applications like Kate editor. But not in Telegram. Telegram is also installed using the apt package manager, not the AppImage one.