Да. эти Enums определены в types.dart. Вы можете ссылаться на исходный код
и paint_cache.dart, используя эти Enums https://github.com/lukef/qr.flutter/blob/master/lib/src/paint_cache.dart
QrValidationStatus, определенные в https://github.com/lukef/qr.flutter/blob/master/lib/src/validator.dart
/// The status of the QR code data you requested to be validated.
enum QrValidationStatus {
/// The QR code data is valid for the provided parameters.
valid,
/// The QR code data is too long for the provided version + error check
/// configuration or too long to be contained in a QR code.
contentTooLong,
/// An unknown / unexpected error occurred when we tried to validate the QR
/// code data.
error,
}
FinderPatternPosition и QrCodeElement, определенные в https://github.com/lukef/qr.flutter/blob/master/lib/src/types.dart
/*
* QR.Flutter
* Copyright (c) 2019 the QR.Flutter authors.
* See LICENSE for distribution and usage details.
*/
import 'dart:ui';
import 'package:flutter/widgets.dart';
/// Represents a specific element / part of a QR code. This is used to isolate
/// the different parts so that we can style and modify specific parts
/// independently.
enum QrCodeElement {
/// The 'stroke' / outer square of the QR code finder pattern element.
finderPatternOuter,
/// The inner/in-between square of the QR code finder pattern element.
finderPatternInner,
/// The "dot" square of the QR code finder pattern element.
finderPatternDot,
/// The individual pixels of the QR code
codePixel,
/// The "empty" pixels of the QR code
codePixelEmpty,
}
/// Enumeration representing the three finder pattern (square 'eye') locations.
enum FinderPatternPosition {
/// The top left position.
topLeft,
/// The top right position.
topRight,
/// The bottom left position.
bottomLeft,
}
/// Styling options for any embedded image overlay
class QrEmbeddedImageStyle {
/// Create a new set of styling options.
QrEmbeddedImageStyle({
this.size,
this.color,
});
/// The size of the image. If one dimension is zero then the other dimension
/// will be used to scale the zero dimension based on the original image
/// size.
Size size;
/// Color to tint the image.
Color color;
/// Check to see if the style object has a non-null, non-zero size.
bool get hasDefinedSize => size != null && size.longestSide > 0;
@override
int get hashCode => size.hashCode ^ color.hashCode;
@override
bool operator ==(Object other) {
if (other is QrEmbeddedImageStyle) {
return size == other.size && color == other.color;
}
return false;
}
}