Changing the font size and the color of QwtPlot scale labels

[Momergil]

Hello!

I would like to know how do one change the Font (particularly the font size) of a QwtPlot's axis labels. Now notice I'm not talking here about the size of a QwtPlot Title, neither am I talking about the size of the title of the axis; I'm talking about the numbers that are displayed in the axis (0, 100,200, etc.). I just can't find the function to change that.

I would also like to change the color of the axis; for not it's white while the QwtPlot is with black background, and I would like to change the color to black when I put the background to white. I couldn't find the function for that either.

Any help would be appreciated.

Momergil

[Uwe]

The colors of the axes depends on the palette of the scale widget: QPalette::Text is used for the labels, QPalette::Foreground ( = QPalette::WindowText ) for ticks and backbone.
You can overrule the widget palette by overloading QwtAbstractScaleDraw::label(), where you can set individual colors for each tick label.

For your use case I would simply do something like "plot->setPalette( Qt::darkGray );". The constructor of QPalette will create colors with good contrasts and all scale widgets inherit the palette from the plot.

Concerning the font of the tick labels: "plot->axisWidget( ... )->setFont( ... );" Note, that the font can also be overruled in a similar way like the colors.

Uwe