qr-rs-lib 0.1.0

Generates QRCodes with a logo overlay.
Documentation 
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use image::ImageError;
use thiserror::Error;

#[derive(Error, Debug, PartialEq, Eq)]
pub enum Error {
  /// Represents invalid parameters (such as a really big size or an empty link).
  #[error("{0}")]
  InputError(String),

  /// Represents an error in the QR Code generation. If this happens there's likely a bug in this
  /// crate.
  #[error("{0}")]
  QrError(String),

  /// Represents an error in the encoding of the image. If this happens there's likely a bug
  /// in this crate.
  #[error("{0}")]
  ImageError(String),
}

impl From<fast_qr::qr::QRCodeError> for Error {
  fn from(e: fast_qr::qr::QRCodeError) -> Self {
    match e {
      fast_qr::qr::QRCodeError::EncodedData => {
        Self::QrError("Data if too big to be encoded".to_owned())
      }
      fast_qr::qr::QRCodeError::SpecifiedVersion => {
        Self::QrError("Specified version too small to contain data".to_owned())
      }
    }
  }
}

impl From<png::EncodingError> for Error {
  fn from(e: png::EncodingError) -> Self {
    Self::ImageError(e.to_string())
  }
}

impl From<ImageError> for Error {
  fn from(e: ImageError) -> Self {
    Self::ImageError(e.to_string())
  }
}