vprinter

type ColorRGB struct{ R, G, B int }

type Job interface {
	// AddLine adds one line of output to the print job. linefeed indicates
	// whether, in addition to a carriage return action at the end of the
	// line, the printer should advance by one line. (linefeed=false will
	// cause the next line to overtype the current line.) Returns the current
	// number of pages in the job so far.
	AddLine(text string, linefeed bool) int

	// NewPage indicates that the print job encountered a form feed character.
	// Returns the current number of pages in the job so far.
	NewPage() int

	// EndJob instructs the virtual printer to end the job and write the
	// output (e.g. the PDF of all lines and pages for this job) to the
	// io.Writer. Will return the total number of pages.
	EndJob(io.Writer) (int, error)
}