func pdf(w http.ResponseWriter, r *http.Request) *appError {
w.Header().Set("Content-type", "application/pdf")
// Initialize the graphic context on an pdf document
dest := draw2dpdf.NewPdf("L", "mm", "A4")
gc := draw2dpdf.NewGraphicContext(dest)
// Draw sample
android.Draw(gc, 65, 0)
err := dest.Output(w)
if err != nil {
return &appError{err, fmt.Sprintf("Can't write: %s", err), 500}
}
return nil
}
func imgPng(w http.ResponseWriter, r *http.Request) *appError {
w.Header().Set("Content-type", "image/png")
// Initialize the graphic context on an RGBA image
dest := image.NewRGBA(image.Rect(0, 0, 297, 210.0))
gc := draw2dimg.NewGraphicContext(dest)
// Draw sample
android.Draw(gc, 65, 0)
err := png.Encode(w, dest)
if err != nil {
return &appError{err, fmt.Sprintf("Can't encode: %s", err), 500}
}
return nil
}