Font {
	classvar <defaultSansFace, <defaultSerifFace, <defaultMonoFace;

	var <>name, <size, <>bold, <>italic, <hasPointSize=false;
	/* ----------------- class -------------------*/


	*initClass {
		if(Platform.hasQt.not) { ^nil; };	// skip init on Qt-less builds

		try{
			defaultSansFace = this.prDefaultFamilyForStyle(0);
			defaultSerifFace = this.prDefaultFamilyForStyle(1);
			defaultMonoFace = this.prDefaultFamilyForStyle(2);
		}{
			"WARNING: Qt font initialisation failed".postln;
		}
	}

	*new { arg name, size, bold = false, italic = false, usePointSize = false;
		^super.newCopyArgs( name, size, bold, italic, usePointSize );
	}

	*availableFonts {
		_Qt_AvailableFonts
		^this.primitiveFailed
	}

	*antiAliasing_ { arg flag;
	}

	*smoothing_ { arg flag;
	}

	*default {
		^Font();
	}

	*default_ { arg font;
		this.setDefault(font);
	}

	*setDefault { arg font, class;
		this.prSetDefault(font, class !? {class.qtClass});
	}

	*monospace {|size, bold = false, italic = false, usePointSize = false|
		^this.new(this.defaultMonoFace, size, bold, italic, usePointSize)
	}

	*serif {|size, bold = false, italic = false, usePointSize = false|
		^this.new(this.defaultSerifFace, size, bold, italic, usePointSize)
	}

	*sansSerif {|size, bold = false, italic = false, usePointSize = false|
		^this.new(this.defaultSansFace, size, bold, italic, usePointSize)
	}

	/* ------------------instance------------------*/

	setDefault { arg class;
		Font.setDefault(this, class);
	}

	boldVariant {
		^this.class.new( name, size, true, italic );
	}

	size_ { arg pixelSize; this.pixelSize_( pixelSize ); }

	pixelSize_ { arg pixelSize;
		size = pixelSize;
		hasPointSize = false;
	}

	pointSize_ { arg pointSize;
		size = pointSize;
		hasPointSize = true;
	}

	pixelSize { ^( if(hasPointSize){nil}{size} ) }

	pointSize { ^( if(hasPointSize){size}{nil} ) }

	/* ------------------ private -----------------*/

	*prSetDefault { arg font, className;
		_QFont_SetDefaultFont
		^this.primitiveFailed;
	}

	*prDefaultFamilyForStyle { arg style = -1;
		_QFont_DefaultFamilyForStyle
		^this.primitiveFailed;
	}

	printOn { |aStream|
		this.storeOn(aStream);
	}

	storeArgs { ^[name, size] }
}
