How get max size text in a QPushButton (Qt embedded linux 4.3.0)

[Gerard]

Hello!

I'm trying to put a 200px text in a QPushButton, in Ubuntu X11 there isn't problem but when i crooscompile to linux embedded text is small. I'm using Qt 4.3.0.

Anyone know how to solve the problem?

I have tryied 2 ways, with next code, but not working :

way 1:

QPushButton temperature;

temperature.setFlat(true);
temperature.setText("300 degrees");
temperature.setMaximumSize(QSize(291, 16777215));
temperature.setStyleSheet("border: 0; background-color: transparent; font: 200px; font-family: Ubuntu");

temperature.setFlat(true);
temperature.setText("300 degrees");
temperature.setMaximumSize(QSize(291, 16777215));
temperature.setStyleSheet("border: 0; background-color: transparent; font: 200px; font-family: Ubuntu");

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way 2:

QFont font;
font.setFamily(QString::fromUtf8("Ubuntu"));
font.setPointSize(200);
font.setBold(true);
 
QPushButton temperature;
temperature.setFlat(true);
temperature.setText("300  degrees");
temperature.setMaximumSize(QSize(291, 16777215));
temperature.setFont(font);

QFont font;
font.setFamily(QString::fromUtf8("Ubuntu"));
font.setPointSize(200);
font.setBold(true);

QPushButton temperature;
temperature.setFlat(true);
temperature.setText("300  degrees");
temperature.setMaximumSize(QSize(291, 16777215));
temperature.setFont(font);

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[high_flyer]

does your display have 200px width where this string should appear?

[Gerard]

does your display have 200px width where this string should appear?

My display is 320x240 pixels. But it has a big central QPushButton. The button musts to show and resfresh 3 numbers.

[high_flyer]

What are the values of 'rect' when you add this code below?:

QRect rect = temperature.geometry();

QRect rect = temperature.geometry();

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[Gerard]

What are the values of 'rect' when you add this code below?:

QRect rect = temperature.geometry();

QRect rect = temperature.geometry();

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temperature is set:

temperature.setGeometry(QRect(30, 70, 200, 80)); //posx,posy,sizex,sizey


I'm thinking that the problem is the type of font, I'm using Arial