How to add a new line at a particular position in QLabel

Dcqt

Hi,

I am using single QLabel to represent two different informations.
to generate some space between two infos i am adding some space , but it does not work in all scenarios.

Can i make QLabel to store the second info in a new line with some sufficient gap between first and second infomations?

@
QString ename = (const char *)eventData.event_list[row].event_name;
QString edesc = (const char *)eventData.event_list[row].short_description;
ename.append(" ");
ename.append(edesc);
evnt_name_label->setText( ename );
@

please reply.....

ChrisW67

QLabel will wrap text on new line characters if wordWrap is on.
@
label->setText("Line 1\nLine 2\n\nLine 4");
@

Dcqt

Thanks, i tried the same with append function , it does not work , but if i if use setText function its wokring..

then , one more i would like to know.

i want to set the different font sizes for different texts, where the text will be decided run time.

how to do it

musimbate

Hi,
Have you tried using tags inside your strings?

Chris Kawa

QLabel accepts a "limited subset":https://qt-project.org/doc/qt-5/richtext-html-subset.html of html formatting. You can wrap the parts you need in tags.

Dcqt

please give me some examples , i am not a frequent user of Qt, and i dont understand these syntaxes properly..

Chris Kawa

@
label->setText("I'm small "
"I'm average :( "
"<big>I'm big!</big> "
"I'm 15!");
@

Dcqt

I m sorry to ask you again.. but i want to have these setting on text that is decided during runtime.
i tried

@
QString big("I'm Big");
QString small("I'm small");

label->setText("big "
"small");
@

i am getting the big and small as out put instead of I'm Big and
I'm small.

how to do it..

Chris Kawa

That's not a Qt thing, that's c++ thing. What you did was like
@int i = 42;
std::string("foo i bar"); //this won't be "foo 42 bar"@

Just concatenate strings
@
QString big("I'm Big");
QString small("I'm small");
label->setText(QString("") + big +
" " + small + "");
@
or more readable with arg() method of QString:
@
QString big("I'm Big");
QString small("I'm small");
QString text("%1 %2");
label->setText(text.arg(big, small));
@

Dcqt

Thanks a lot Chris, both work perfect.