How can I display unicode in QGraphicsTextItem?

Question

I would like to be able to display Unicode in QGraphicsTextItem (or a subclass of it).

The only way to set text in QGraphicsTextItem seems to be

setPlainText(text);

Trying

setPlainText(QString::fromUtf8("Caf\x00e9 Frap\x00e9"));

or

QTextCodec::setCodecForCStrings(QTextCodec::codecForName("utf8"));
setPlainText("Café Frapé");

QTextCodec::setCodecForCStrings(QTextCodec::codecForName("utf8"));
setPlainText("Caf\x00e9 Frap\x00e9");

I get:

Caf? Frap?

It seems that no matter what I do (which I am not sure is correct) I do not get the output right...

Do QGraphicsTextItem support unicode ? Is maybe the setPlainText function at fault - but then what are the alternatives ? (I looked into setDocument but it also sets plain text...)

Edit - copying the special characters inside the QGraphicsTextItem works, once on screen, but still unable to place any unicode from code.

The question suggested as a duplicate allows display of a single character, not a QString... and when posting my question I have found it, tried it, didn't work. — Thalia, May 26 '15 at 19:26

score 0 · Answer 1 · edited May 03 '16 at 15:22

0

In a class inheriting QGraphicScene, I used:

        QString text(QString::fromUtf8(xt.text));
        ...
        QGraphicsTextItem *t = addText(text = text.replace("\\n", "\n"), font);

The dot source is utf8:

digraph so {
Café -> Frapé
}

And the rendering:

enter image description here

You can find here the C++ code.

edited May 03 '16 at 15:22

Angie Quijano

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answered May 20 '15 at 18:28

CapelliC

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I am sorry but I do not see how to place a text inside a class deriving from QGraphicsTextItem... I seem able to type the special characters inside the QGraphicsTextItem once displayed but I don't know how to enter them in code. – Thalia May 20 '15 at 19:25

score -1 · Accepted Answer · answered May 20 '15 at 18:10

-1

I think you should use the

QGraphicsTextItem item.
item.setHtml( "Café Frapé" );

function instead of the mentioned. Read this QGraphicsTextItem::setHtml.

answered May 20 '15 at 18:10

p.i.g.

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I still get the same question marks – Thalia May 20 '15 at 18:12
1

`setHtml("Café Frapé");` worked ! – Thalia May 20 '15 at 20:23
Of course I would still have the problem of converting non-html text into text that can be accepted. (template texts). I guess I would have to find a way to convert text to html ... ? – Thalia May 20 '15 at 20:29

How can I display unicode in QGraphicsTextItem?

2 Answers2