Method SizeClass

core/sizeclasses.go:25–43

SizeClass returns the size class of the scene in which the widget is contained.

()

// SizeClass returns the size class of the scene in which the widget is contained.
func (wb *WidgetBase) SizeClass() SizeClasses {
	dots := float32(wb.Scene.sceneGeom.Size.X)
	if wb.Scene.prefSizing {
		if currentRenderWindow != nil {
			rg := currentRenderWindow.SystemWindow.RenderGeom()
			dots = float32(rg.Size.X)
		}
	}
	dpd := wb.Scene.Styles.UnitContext.Dp(1) // dots per dp
	dp := dots / dpd                         // dots / (dots / dp) = dots * (dp / dots) = dp
	switch {
	case dp < 600:
		return SizeCompact
	case dp > 840:
		return SizeExpanded
	default:
		return SizeMedium
	}
}