QPushButton - setText with "\n" not working

[gboelter]

Sorry, I'm quiet new in Qt and it's possible that somebody will laugh about this question, but I can't found a solution so I would like to ask you guys for al little bit help.

Actually I'm using Qt 4.3 together with Linux and MySQL 5.

From a MySql database I got "Hello\n World" using

QString test1(query.value(1).toString())

QString test1(query.value(1).toString())

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In my database "Hello\n World" is stored as varschar(40).

Then for testing I have tried this:

QString test1(query.value(1).toString());
QString test2 = "Hello\n World";
 
qDebug() << query.value(1);          // QVariant(QString, "Hello\World")
qDebug() << test1;                   // gives me "Hello\n World"
qDebug() << test2;                   // gives me "Hello
                                                  World"

QString test1(query.value(1).toString());
QString test2 = "Hello\n World";

qDebug() << query.value(1);          // QVariant(QString, "Hello\World")
qDebug() << test1;                   // gives me "Hello\n World"
qDebug() << test2;                   // gives me "Hello
                                                  World"

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How it comes, that in test1 the newline character is ignored?

Thanks in advance

Guenther
Davao City, Philippines, Planet Earth

[wysota]

Push buttons don't allow a multiline text. You can use my QwwRichTextButton class if you want or make your own subclass of the button.

[gboelter]

Push buttons don't allow a multiline text. You can use my QwwRichTextButton class if you want or make your own subclass of the button.

Thanks wysota, I will try it.

What I don't understand is, why it's working with

QString test2 = "Hello\n World";

QString test2 = "Hello\n World";

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Here my Button has two lines ....?

[marcel]

Might be an encoding problem.
Try with:

QString test1(query.value(1).toString().toAscii().constData());

QString test1(query.value(1).toString().toAscii().constData());

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Also, in 4.3.3 QPushButtons support multiline strings, it's just they don't resize to the contents by default. See the attachment.

[gboelter]

[QUOTE=marcel;62576]Might be an encoding problem.
Try with:

QString test1(query.value(1).toString().toAscii().constData());

QString test1(query.value(1).toString().toAscii().constData());

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Sorry, still the same ....

[marcel]

I think the "\" in test1 might be escaped. It is the only explanation.
Try :

int c = test1.count('\');

int c = test1.count('\');

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See what is the value of c.

If it is then you only need to remove one \ from the string.

[gboelter]

[QUOTE=marcel;62579]I think the "\" in test1 might be escaped. It is the only explanation.

Thanks Marcel, you are right, that was the problem.

Guenther

[gboelter]

You can use my QwwRichTextButton class if you want or make your own subclass of the button.

Thanks again wysota, I have installed your class and I like it .....