waveshare_barcodescanner/
lib.rs

1use std::fmt::Display;
2
3pub mod crc;
4pub mod interface;
5
6// indicates, that the checksum was not calculated (checksum will not be validated)
7pub const IGNORED_CHECKSUM: u16 = 0xabcd;
8
9/// target light mode to indicate scanning
10pub enum TargetLightMode {
11    /// target light is disabled
12    AlwaysOff,
13    /// target light is always on (also when not scanning)
14    AlwaysOn,
15    /// target light is on during scanning
16    Standard,
17}
18
19/// light mode for object detection in dark environments
20pub enum IlluminationMode {
21    /// white LED is disabled (scanning in dark environments might be difficult)
22    AlwaysOff,
23    /// white LED is always on (also when not scanning)
24    AlwaysOn,
25    /// white LED is on during scanning
26    Standard,
27}
28
29/// scanner mode operation
30pub enum OperationMode {
31    /// push button to scan
32    Manual,
33    /// send command to scan
34    Command,
35    /// continuous scanning
36    Continuous,
37    /// detect ambient brightness change and start scanning
38    Sensing,
39}
40
41/// scan area for bar codes
42pub enum ScanArea {
43    /// the entire area of view of the camera is used to detect barcodes
44    All,
45    /// the center area (default 20%) of the camera is used to detect barcodes
46    Center,
47}
48
49/// type of barcodes to enable/disable (device dependent)
50pub enum Barcodes {
51    /// enable all supported barcodes
52    EnableAll,
53    /// disable all barcodes
54    DisableAll,
55    /// enable all default barcodes
56    Default,
57}
58
59/// scanned barcode
60pub enum Barcode {
61    /// Interleaved 2of5, single line of digits
62    Interleaved2of5(String),
63    /// International Article Number - EAN13, single line of digits
64    EAN13(String),
65    /// Code 128, single line of alphanumeric characters
66    Code128(String),
67    /// Code 39, single line of alphanumeric characters
68    Code39(String),
69    /// QR code, multiple lines of alphanumeric characters
70    QR(Vec<String>),
71    /// mini QR code, multiple lines of alphanumeric characters
72    MicroQR(Vec<String>),
73    /// Dot Matrix code, multiple lines of alphanumeric characters
74    DotMatrix(Vec<String>),
75}
76
77impl Display for Barcode {
78    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
79        match self {
80            Barcode::Interleaved2of5(data) => write!(f, "interleaved2of5: {}", data),
81            Barcode::EAN13(data) => write!(f, "EAN13: {}", data),
82            Barcode::Code39(data) => write!(f, "Code39: {}", data),
83            Barcode::Code128(data) => write!(f, "Code128: {}", data),
84            Barcode::QR(data) => write!(
85                f,
86                "QR: {}",
87                data.iter()
88                    .enumerate()
89                    .map(|(i, line)| format!("{}: {}", i, line))
90                    .collect::<Vec<String>>()
91                    .join("\n")
92            ),
93            Barcode::MicroQR(data) => write!(
94                f,
95                "Micro QR: {}",
96                data.iter()
97                    .enumerate()
98                    .map(|(i, line)| format!("{}: {}", i, line))
99                    .collect::<Vec<String>>()
100                    .join("\n")
101            ),
102            Barcode::DotMatrix(data) => write!(
103                f,
104                "Dot Matrix: {}",
105                data.iter()
106                    .enumerate()
107                    .map(|(i, line)| format!("{}: {}", i, line))
108                    .collect::<Vec<String>>()
109                    .join("\n")
110            ),
111        }
112    }
113}
waveshare_barcodescanner/lib.rs

waveshare_barcodescanner/
lib.rs
