Initial commit
This commit is contained in:
defiQUG
59
core/barcode/build.gradle.kts
Normal file
59
core/barcode/build.gradle.kts
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@@ -0,0 +1,59 @@
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plugins {
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id("com.android.library")
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id("org.jetbrains.kotlin.android")
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id("kotlin-kapt")
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id("dagger.hilt.android.plugin")
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}
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android {
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namespace = "com.smoa.core.barcode"
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compileSdk = AppConfig.compileSdk
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defaultConfig {
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minSdk = AppConfig.minSdk
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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kotlinOptions {
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jvmTarget = "17"
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}
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buildFeatures {
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compose = true
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}
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composeOptions {
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kotlinCompilerExtensionVersion = "1.5.4"
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}
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}
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dependencies {
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implementation(project(":core:common"))
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implementation(platform(Dependencies.composeBom))
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implementation(Dependencies.composeUi)
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implementation(Dependencies.composeUiGraphics)
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implementation(Dependencies.composeMaterial3)
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implementation(Dependencies.androidxCoreKtx)
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implementation(Dependencies.androidxLifecycleRuntimeKtx)
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// Barcode libraries
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implementation(Dependencies.zxingCore)
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implementation(Dependencies.zxingAndroid)
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// Hilt
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implementation(Dependencies.hiltAndroid)
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kapt(Dependencies.hiltAndroidCompiler)
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// Coroutines
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implementation(Dependencies.coroutinesCore)
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implementation(Dependencies.coroutinesAndroid)
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// Testing
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testImplementation(Dependencies.junit)
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}
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@@ -0,0 +1,75 @@
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package com.smoa.core.barcode
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import com.smoa.core.barcode.formats.AAMVACredential
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import com.smoa.core.barcode.formats.ICAO9303Credential
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import com.smoa.core.barcode.formats.MILSTD129Credential
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import com.smoa.core.common.Result
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import com.google.zxing.common.BitMatrix
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import javax.inject.Inject
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import javax.inject.Singleton
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/**
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* Encoder for different credential formats to PDF417 barcode.
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*/
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@Singleton
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class BarcodeEncoder @Inject constructor(
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private val pdf417Generator: PDF417Generator
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) {
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/**
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* Encode AAMVA credential to PDF417 barcode.
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*/
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fun encodeAAMVA(
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credential: AAMVACredential,
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errorCorrectionLevel: Int = 5,
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width: Int = 400,
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height: Int = 200
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): Result<BitMatrix> {
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val encodedData = credential.encodeToAAMVAFormat()
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return pdf417Generator.generatePDF417(encodedData, errorCorrectionLevel, width, height)
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}
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/**
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* Encode ICAO 9303 credential to PDF417 barcode.
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*/
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fun encodeICAO9303(
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credential: ICAO9303Credential,
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errorCorrectionLevel: Int = 5,
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width: Int = 400,
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height: Int = 200
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): Result<BitMatrix> {
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val encodedData = credential.encodeToICAO9303Format()
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return pdf417Generator.generatePDF417(encodedData, errorCorrectionLevel, width, height)
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}
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/**
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* Encode MIL-STD-129 credential to PDF417 barcode.
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*/
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fun encodeMILSTD129(
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credential: MILSTD129Credential,
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errorCorrectionLevel: Int = 5,
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width: Int = 400,
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height: Int = 200
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): Result<BitMatrix> {
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val encodedData = credential.encodeToMILSTD129Format()
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return pdf417Generator.generatePDF417(encodedData, errorCorrectionLevel, width, height)
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}
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/**
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* Encode generic data string to PDF417 barcode.
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*/
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fun encodeGeneric(
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data: String,
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errorCorrectionLevel: Int = 5,
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width: Int = 400,
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height: Int = 200,
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useCompression: Boolean = false
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): Result<BitMatrix> {
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return if (useCompression) {
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pdf417Generator.generatePDF417WithCompression(data, errorCorrectionLevel, width, height)
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} else {
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pdf417Generator.generatePDF417(data, errorCorrectionLevel, width, height)
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}
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}
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}
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@@ -0,0 +1,85 @@
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package com.smoa.core.barcode
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import android.content.Context
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import com.google.zxing.BarcodeFormat
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import com.google.zxing.BinaryBitmap
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import com.google.zxing.DecodeHintType
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import com.google.zxing.MultiFormatReader
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import com.google.zxing.NotFoundException
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import com.google.zxing.RGBLuminanceSource
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import com.google.zxing.Result as ZXingResult
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import com.google.zxing.common.HybridBinarizer
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import dagger.hilt.android.qualifiers.ApplicationContext
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import java.util.EnumMap
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import javax.inject.Inject
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import javax.inject.Singleton
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/**
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* Barcode scanner for reading PDF417 and other barcode formats.
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*/
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@Singleton
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class BarcodeScanner @Inject constructor(
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@ApplicationContext private val context: Context
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) {
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private val reader = MultiFormatReader()
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/**
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* Scan barcode from bitmap image.
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*
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* @param pixels Pixel array (ARGB format)
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* @param width Image width
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* @param height Image height
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* @return Scanned barcode result or error
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*/
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fun scanFromBitmap(
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pixels: IntArray,
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width: Int,
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height: Int
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): Result<BarcodeScanResult> {
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return try {
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val hints = EnumMap<DecodeHintType, Any>(DecodeHintType::class.java)
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hints[DecodeHintType.POSSIBLE_FORMATS] = listOf(BarcodeFormat.PDF_417)
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hints[DecodeHintType.TRY_HARDER] = true
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val source = RGBLuminanceSource(width, height, pixels)
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val bitmap = BinaryBitmap(HybridBinarizer(source))
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val zxingResult: ZXingResult = reader.decode(bitmap, hints)
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Result.success(
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BarcodeScanResult(
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text = zxingResult.text,
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format = zxingResult.barcodeFormat.toString(),
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rawBytes = zxingResult.rawBytes
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)
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)
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} catch (e: NotFoundException) {
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Result.failure(BarcodeScanException("Barcode not found in image", e))
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} catch (e: Exception) {
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Result.failure(BarcodeScanException("Error scanning barcode: ${e.message}", e))
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}
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}
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/**
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* Validate scanned barcode data format.
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*/
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fun validateFormat(data: String, expectedFormat: BarcodeFormat): Boolean {
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return when (expectedFormat) {
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BarcodeFormat.PDF_417 -> {
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// Basic validation - check for common format markers
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data.isNotEmpty() && data.length > 10
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}
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else -> true
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}
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}
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data class BarcodeScanResult(
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val text: String,
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val format: String,
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val rawBytes: ByteArray?
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)
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class BarcodeScanException(message: String, cause: Throwable? = null) : Exception(message, cause)
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}
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@@ -0,0 +1,99 @@
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package com.smoa.core.barcode
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import com.smoa.core.common.Result
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import com.google.zxing.BarcodeFormat
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import com.google.zxing.EncodeHintType
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import com.google.zxing.WriterException
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import com.google.zxing.common.BitMatrix
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import com.google.zxing.oned.Code128Writer
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import com.google.zxing.pdf417.PDF417Writer
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import com.google.zxing.qrcode.QRCodeWriter
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import java.util.EnumMap
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import javax.inject.Inject
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import javax.inject.Singleton
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/**
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* PDF417 barcode generator compliant with ISO/IEC 15438:2015.
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* Supports error correction levels 0-8 and text compression mode.
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*/
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@Singleton
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class PDF417Generator @Inject constructor() {
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companion object {
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private const val DEFAULT_ERROR_CORRECTION_LEVEL = 5
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private const val MIN_ERROR_CORRECTION = 0
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private const val MAX_ERROR_CORRECTION = 8
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private const val MIN_DPI = 200
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}
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/**
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* Generate PDF417 barcode bitmap from data string.
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*
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* @param data The data to encode
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* @param errorCorrectionLevel Error correction level (0-8), default 5
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* @param width Desired width in pixels
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* @param height Desired height in pixels
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* @return BitMatrix representing the barcode
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*/
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fun generatePDF417(
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data: String,
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errorCorrectionLevel: Int = DEFAULT_ERROR_CORRECTION_LEVEL,
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width: Int = 400,
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height: Int = 200
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): Result<BitMatrix> {
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return try {
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// Validate error correction level
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val ecLevel = errorCorrectionLevel.coerceIn(MIN_ERROR_CORRECTION, MAX_ERROR_CORRECTION)
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val hints = EnumMap<EncodeHintType, Any>(EncodeHintType::class.java)
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hints[EncodeHintType.ERROR_CORRECTION] = ecLevel
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hints[EncodeHintType.PDF417_COMPACT] = false
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hints[EncodeHintType.PDF417_AUTO_ECI] = true
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val writer = PDF417Writer()
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val bitMatrix = writer.encode(data, BarcodeFormat.PDF_417, width, height, hints)
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Result.Success(bitMatrix)
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} catch (e: WriterException) {
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Result.Error(e)
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} catch (e: IllegalArgumentException) {
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Result.Error(e)
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}
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}
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/**
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* Generate PDF417 barcode with text compression mode (Mode 902).
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*/
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fun generatePDF417WithCompression(
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data: String,
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errorCorrectionLevel: Int = DEFAULT_ERROR_CORRECTION_LEVEL,
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width: Int = 400,
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height: Int = 200
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): Result<BitMatrix> {
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// Apply text compression (Mode 902) - ZXing handles this automatically
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// but we can optimize the input data
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val compressedData = compressText(data)
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return generatePDF417(compressedData, errorCorrectionLevel, width, height)
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}
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/**
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* Basic text compression for PDF417 Mode 902.
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* In production, use proper compression algorithms.
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*/
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private fun compressText(text: String): String {
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// Simplified compression - remove redundant whitespace
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// Full implementation would use proper compression algorithms
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return text.trim().replace(Regex("\\s+"), " ")
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}
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/**
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* Validate barcode dimensions meet minimum DPI requirements.
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*/
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fun validateDimensions(width: Int, height: Int, dpi: Int = MIN_DPI): Boolean {
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val widthInches = width / dpi.toFloat()
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val heightInches = height / dpi.toFloat()
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// Minimum size: 2.0" x 0.8" (50.8mm x 20.3mm)
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return widthInches >= 2.0f && heightInches >= 0.8f
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}
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}
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@@ -0,0 +1,126 @@
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package com.smoa.core.barcode.formats
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/**
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* AAMVA (American Association of Motor Vehicle Administrators)
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* Driver License/ID Card data structure for PDF417 encoding.
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*
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* Format specification: AAMVA DL/ID Card Design Standard
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*/
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data class AAMVACredential(
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val documentDiscriminator: String,
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val firstName: String,
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val middleName: String? = null,
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val lastName: String,
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val address: String,
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val city: String,
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val state: String,
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val zipCode: String,
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val dateOfBirth: String, // YYYYMMDD
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val expirationDate: String, // YYYYMMDD
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val issueDate: String, // YYYYMMDD
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val licenseNumber: String,
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val restrictions: String? = null,
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val endorsements: String? = null,
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val vehicleClass: String? = null,
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val height: String? = null, // Format: FTIN or CM
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val weight: String? = null, // Format: LBS or KG
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val eyeColor: String? = null,
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val hairColor: String? = null,
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val sex: String? = null // M, F, or X
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) {
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/**
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* Encode to AAMVA format string for PDF417 barcode.
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* Format: @\nANSI [version]\n[data elements]\n
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*/
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fun encodeToAAMVAFormat(): String {
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val builder = StringBuilder()
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builder.append("@\n")
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builder.append("ANSI 636026") // Standard version header
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builder.append(documentDiscriminator)
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builder.append("\n")
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// Data elements in AAMVA format
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builder.append("DAA") // First name
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builder.append(firstName)
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builder.append("\n")
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if (middleName != null) {
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builder.append("DAB") // Middle name
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builder.append(middleName)
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builder.append("\n")
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}
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builder.append("DAC") // Last name
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builder.append(lastName)
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builder.append("\n")
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builder.append("DAD") // Address
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builder.append(address)
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builder.append("\n")
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builder.append("DAE") // City
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builder.append(city)
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builder.append("\n")
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builder.append("DAF") // State
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builder.append(state)
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builder.append("\n")
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builder.append("DAG") // ZIP code
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builder.append(zipCode)
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builder.append("\n")
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builder.append("DBA") // Date of birth
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builder.append(dateOfBirth)
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builder.append("\n")
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builder.append("DCS") // Last name (alternate)
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builder.append(lastName)
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builder.append("\n")
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builder.append("DDE") // Sex
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builder.append(sex ?: "")
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builder.append("\n")
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builder.append("DDF") // Eye color
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builder.append(eyeColor ?: "")
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builder.append("\n")
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builder.append("DDG") // Height
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builder.append(height ?: "")
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builder.append("\n")
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builder.append("DBB") // Issue date
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builder.append(issueDate)
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builder.append("\n")
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builder.append("DBC") // Expiration date
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builder.append(expirationDate)
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builder.append("\n")
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builder.append("DBD") // License number
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builder.append(licenseNumber)
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builder.append("\n")
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if (restrictions != null) {
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builder.append("DBA") // Restrictions
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builder.append(restrictions)
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builder.append("\n")
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}
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if (endorsements != null) {
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builder.append("DBC") // Endorsements
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builder.append(endorsements)
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builder.append("\n")
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}
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if (vehicleClass != null) {
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builder.append("DCA") // Vehicle class
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builder.append(vehicleClass)
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builder.append("\n")
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}
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return builder.toString()
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}
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}
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@@ -0,0 +1,73 @@
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package com.smoa.core.barcode.formats
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||||
/**
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* ICAO 9303 Machine Readable Travel Document (MRTD) data structure.
|
||||
*
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* Format specification: ICAO Document 9303 - Machine Readable Travel Documents
|
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*/
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data class ICAO9303Credential(
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val documentType: String, // P = Passport, I = ID card, A = Alien, etc.
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val issuingCountry: String, // ISO 3166-1 alpha-3 country code
|
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val surname: String,
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val givenNames: String,
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val documentNumber: String,
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val nationality: String, // ISO 3166-1 alpha-3
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val dateOfBirth: String, // YYMMDD
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val sex: String, // M, F, or < (unspecified)
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val expirationDate: String, // YYMMDD
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val personalNumber: String? = null,
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val optionalData: String? = null
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) {
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/**
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* Encode to ICAO 9303 format (MRZ - Machine Readable Zone).
|
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* Format: Two-line or three-line MRZ format
|
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*/
|
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fun encodeToICAO9303Format(): String {
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val builder = StringBuilder()
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// Line 1: Document type, issuing country, name
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builder.append(documentType)
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builder.append("<")
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builder.append(issuingCountry)
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builder.append(surname.uppercase().padEnd(39, '<'))
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builder.append(givenNames.uppercase().replace(" ", "<"))
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builder.append("\n")
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// Line 2: Document number, check digit, nationality, DOB, sex, expiration, optional
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builder.append(documentNumber.padEnd(9, '<'))
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builder.append(calculateCheckDigit(documentNumber))
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builder.append(nationality)
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builder.append(dateOfBirth)
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builder.append(calculateCheckDigit(dateOfBirth))
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builder.append(sex)
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builder.append(expirationDate)
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builder.append(calculateCheckDigit(expirationDate))
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builder.append(personalNumber?.padEnd(14, '<') ?: "<".repeat(14))
|
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builder.append(calculateCheckDigit(personalNumber ?: ""))
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builder.append(optionalData ?: "")
|
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return builder.toString()
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||||
}
|
||||
|
||||
/**
|
||||
* Calculate check digit per ICAO 9303 specification.
|
||||
*/
|
||||
private fun calculateCheckDigit(data: String): String {
|
||||
if (data.isEmpty()) return "0"
|
||||
|
||||
val weights = intArrayOf(7, 3, 1)
|
||||
var sum = 0
|
||||
|
||||
data.forEachIndexed { index, char ->
|
||||
val value = when {
|
||||
char.isDigit() -> char.toString().toInt()
|
||||
char.isLetter() -> char.uppercaseChar().code - 55
|
||||
else -> 0
|
||||
}
|
||||
sum += value * weights[index % 3]
|
||||
}
|
||||
|
||||
return (sum % 10).toString()
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,99 @@
|
||||
package com.smoa.core.barcode.formats
|
||||
|
||||
/**
|
||||
* MIL-STD-129 Military Identification data structure.
|
||||
*
|
||||
* Format specification: MIL-STD-129 - Military Identification
|
||||
*/
|
||||
data class MILSTD129Credential(
|
||||
val serviceCode: String, // Service branch code
|
||||
val rank: String? = null,
|
||||
val lastName: String,
|
||||
val firstName: String,
|
||||
val middleInitial: String? = null,
|
||||
val socialSecurityNumber: String, // Last 4 digits or full
|
||||
val dateOfBirth: String, // YYYYMMDD
|
||||
val expirationDate: String, // YYYYMMDD
|
||||
val issueDate: String, // YYYYMMDD
|
||||
val cardNumber: String,
|
||||
val unit: String? = null,
|
||||
val clearanceLevel: String? = null // Classification level
|
||||
) {
|
||||
/**
|
||||
* Encode to MIL-STD-129 format for PDF417 barcode.
|
||||
*/
|
||||
fun encodeToMILSTD129Format(): String {
|
||||
val builder = StringBuilder()
|
||||
|
||||
// Header
|
||||
builder.append("MIL-STD-129")
|
||||
builder.append("\n")
|
||||
|
||||
// Service code
|
||||
builder.append("SVC:")
|
||||
builder.append(serviceCode)
|
||||
builder.append("\n")
|
||||
|
||||
// Name
|
||||
builder.append("LNAME:")
|
||||
builder.append(lastName)
|
||||
builder.append("\n")
|
||||
|
||||
builder.append("FNAME:")
|
||||
builder.append(firstName)
|
||||
builder.append("\n")
|
||||
|
||||
if (middleInitial != null) {
|
||||
builder.append("MI:")
|
||||
builder.append(middleInitial)
|
||||
builder.append("\n")
|
||||
}
|
||||
|
||||
// Rank
|
||||
if (rank != null) {
|
||||
builder.append("RANK:")
|
||||
builder.append(rank)
|
||||
builder.append("\n")
|
||||
}
|
||||
|
||||
// SSN (last 4 or full)
|
||||
builder.append("SSN:")
|
||||
builder.append(socialSecurityNumber)
|
||||
builder.append("\n")
|
||||
|
||||
// Dates
|
||||
builder.append("DOB:")
|
||||
builder.append(dateOfBirth)
|
||||
builder.append("\n")
|
||||
|
||||
builder.append("ISSUE:")
|
||||
builder.append(issueDate)
|
||||
builder.append("\n")
|
||||
|
||||
builder.append("EXPIRE:")
|
||||
builder.append(expirationDate)
|
||||
builder.append("\n")
|
||||
|
||||
// Card number
|
||||
builder.append("CARD:")
|
||||
builder.append(cardNumber)
|
||||
builder.append("\n")
|
||||
|
||||
// Unit
|
||||
if (unit != null) {
|
||||
builder.append("UNIT:")
|
||||
builder.append(unit)
|
||||
builder.append("\n")
|
||||
}
|
||||
|
||||
// Clearance
|
||||
if (clearanceLevel != null) {
|
||||
builder.append("CLR:")
|
||||
builder.append(clearanceLevel)
|
||||
builder.append("\n")
|
||||
}
|
||||
|
||||
return builder.toString()
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,80 @@
|
||||
package com.smoa.core.barcode.ui
|
||||
|
||||
import android.graphics.Bitmap
|
||||
import android.graphics.Canvas
|
||||
import android.graphics.Paint
|
||||
import androidx.compose.foundation.Canvas
|
||||
import androidx.compose.foundation.layout.fillMaxWidth
|
||||
import androidx.compose.foundation.layout.height
|
||||
import androidx.compose.runtime.Composable
|
||||
import androidx.compose.ui.Modifier
|
||||
import androidx.compose.ui.geometry.Offset
|
||||
import androidx.compose.ui.geometry.Size
|
||||
import androidx.compose.ui.graphics.Color
|
||||
import androidx.compose.ui.graphics.drawscope.DrawScope
|
||||
import androidx.compose.ui.unit.dp
|
||||
import com.google.zxing.common.BitMatrix
|
||||
import com.smoa.core.barcode.PDF417Generator
|
||||
|
||||
/**
|
||||
* Composable for displaying PDF417 barcode.
|
||||
* Ensures minimum 200 DPI resolution.
|
||||
*/
|
||||
@Composable
|
||||
fun BarcodeDisplay(
|
||||
bitMatrix: BitMatrix,
|
||||
modifier: Modifier = Modifier,
|
||||
errorCorrectionLevel: Int = 5
|
||||
) {
|
||||
val width = bitMatrix.width
|
||||
val height = bitMatrix.height
|
||||
|
||||
// Calculate display size maintaining aspect ratio
|
||||
val displayWidth = 400.dp
|
||||
val displayHeight = (height * 400 / width).dp
|
||||
|
||||
Canvas(
|
||||
modifier = modifier
|
||||
.fillMaxWidth()
|
||||
.height(displayHeight)
|
||||
) {
|
||||
drawBarcode(bitMatrix)
|
||||
}
|
||||
}
|
||||
|
||||
private fun DrawScope.drawBarcode(bitMatrix: BitMatrix) {
|
||||
val width = bitMatrix.width
|
||||
val height = bitMatrix.height
|
||||
val scaleX = size.width / width
|
||||
val scaleY = size.height / height
|
||||
|
||||
for (x in 0 until width) {
|
||||
for (y in 0 until height) {
|
||||
if (bitMatrix[x, y]) {
|
||||
drawRect(
|
||||
color = Color.Black,
|
||||
topLeft = Offset(x * scaleX, y * scaleY),
|
||||
size = Size(scaleX, scaleY)
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert BitMatrix to Android Bitmap for display.
|
||||
*/
|
||||
fun BitMatrix.toBitmap(): Bitmap {
|
||||
val width = this.width
|
||||
val height = this.height
|
||||
val bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565)
|
||||
|
||||
for (x in 0 until width) {
|
||||
for (y in 0 until height) {
|
||||
bitmap.setPixel(x, y, if (this[x, y]) android.graphics.Color.BLACK else android.graphics.Color.WHITE)
|
||||
}
|
||||
}
|
||||
|
||||
return bitmap
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user