FXRuby: dc.textFont.nil?

[Chris Morris]

I'm working off a modified version of the bounce.rbw sample, and in
this snippet:

def drawScene(drawable)
FXDCWindow.new(drawable) { |dc|
dc.setForeground(FXRGB(255, 255, 255))
dc.fillRectangle(0, 0, drawable.width, drawable.height)
@ball.draw(dc)
}
end

... the dc.textFont is nil ... so how can I access the current font
that's being used to make use of getTextWidth and getTextHeight
methods in order to properly layout text?

 

[Chris Morris]

getApp().normalFont seems to be a valid substitute.

 

[Lyle Johnson]

I'm working off a modified version of the bounce.rbw sample, and in
this snippet:

def drawScene(drawable)
FXDCWindow.new(drawable) { |dc|
dc.setForeground(FXRGB(255, 255, 255))
dc.fillRectangle(0, 0, drawable.width, drawable.height)
@ball.draw(dc)
}
end

... the dc.textFont is nil ... so how can I access the current font
that's being used to make use of getTextWidth and getTextHeight
methods in order to properly layout text?

I've seen your follow-up message about using FXApp#normalFont as a
valid substitute, but just wanted to clarify something.

A device context (i.e. an FXDC instance) doesn't have a default text
font. So if you don't explicitly set it yourself (using the
FXDC#textFont accessor in FXRuby 1.0, or FXDC#font in FXRuby 1.2) then
yes, it will be nil.