From 9c5a45f329a5c11045cb9c08d02dfc7b070814b3 Mon Sep 17 00:00:00 2001 From: Anton Stubenbord Date: Wed, 22 Feb 2023 18:17:50 +0100 Subject: [PATCH] feat: Add document scanner package --- .../paperless_document_scanner/.gitignore | 40 ++ packages/paperless_document_scanner/.metadata | 33 ++ .../paperless_document_scanner/CHANGELOG.md | 3 + packages/paperless_document_scanner/LICENSE | 1 + packages/paperless_document_scanner/README.md | 15 + .../analysis_options.yaml | 4 + .../android/.gitignore | 9 + .../android/CMakeLists.txt | 13 + .../android/build.gradle | 68 +++ .../android/settings.gradle | 1 + .../android/src/main/AndroidManifest.xml | 3 + .../PaperlessDocumentScannerPlugin.kt | 35 ++ .../example/.gitignore | 44 ++ .../example/README.md | 16 + .../example/analysis_options.yaml | 29 ++ .../example/android/.gitignore | 13 + .../example/android/app/build.gradle | 71 +++ .../android/app/src/debug/AndroidManifest.xml | 8 + .../android/app/src/main/AndroidManifest.xml | 34 ++ .../MainActivity.kt | 6 + .../res/drawable-v21/launch_background.xml | 12 + .../main/res/drawable/launch_background.xml | 12 + .../src/main/res/mipmap-hdpi/ic_launcher.png | Bin 0 -> 544 bytes .../src/main/res/mipmap-mdpi/ic_launcher.png | Bin 0 -> 442 bytes .../src/main/res/mipmap-xhdpi/ic_launcher.png | Bin 0 -> 721 bytes .../main/res/mipmap-xxhdpi/ic_launcher.png | Bin 0 -> 1031 bytes .../main/res/mipmap-xxxhdpi/ic_launcher.png | Bin 0 -> 1443 bytes .../app/src/main/res/values-night/styles.xml | 18 + .../app/src/main/res/values/styles.xml | 18 + .../app/src/profile/AndroidManifest.xml | 8 + .../example/android/build.gradle | 31 ++ .../example/android/gradle.properties | 3 + .../gradle/wrapper/gradle-wrapper.properties | 5 + .../example/android/settings.gradle | 11 + .../example/ios/.gitignore | 34 ++ .../ios/Flutter/AppFrameworkInfo.plist | 26 + .../example/ios/Flutter/Debug.xcconfig | 1 + .../example/ios/Flutter/Release.xcconfig | 1 + .../ios/Runner.xcodeproj/project.pbxproj | 483 ++++++++++++++++++ .../contents.xcworkspacedata | 7 + .../xcshareddata/IDEWorkspaceChecks.plist | 8 + .../xcshareddata/WorkspaceSettings.xcsettings | 8 + .../xcshareddata/xcschemes/Runner.xcscheme | 87 ++++ .../contents.xcworkspacedata | 7 + .../xcshareddata/IDEWorkspaceChecks.plist | 8 + .../xcshareddata/WorkspaceSettings.xcsettings | 8 + .../example/ios/Runner/AppDelegate.swift | 13 + .../AppIcon.appiconset/Contents.json | 122 +++++ .../Icon-App-1024x1024@1x.png | Bin 0 -> 10932 bytes .../AppIcon.appiconset/Icon-App-20x20@1x.png | Bin 0 -> 295 bytes .../AppIcon.appiconset/Icon-App-20x20@2x.png | Bin 0 -> 406 bytes .../AppIcon.appiconset/Icon-App-20x20@3x.png | Bin 0 -> 450 bytes .../AppIcon.appiconset/Icon-App-29x29@1x.png | Bin 0 -> 282 bytes .../AppIcon.appiconset/Icon-App-29x29@2x.png | Bin 0 -> 462 bytes .../AppIcon.appiconset/Icon-App-29x29@3x.png | Bin 0 -> 704 bytes .../AppIcon.appiconset/Icon-App-40x40@1x.png | Bin 0 -> 406 bytes .../AppIcon.appiconset/Icon-App-40x40@2x.png | 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++++ .../edge_detection_shape.dart | 213 ++++++++ .../edge_detection_shape/edge_painter.dart | 25 + .../lib/edge_detection_shape/magnifier.dart | 100 ++++ .../magnifier_painter.dart | 43 ++ .../edge_detection_shape/touch_bubble.dart | 66 +++ .../example/lib/edge_detector.dart | 130 +++++ .../example/lib/image_view.dart | 25 + .../example/lib/main.dart | 113 ++++ .../example/lib/scan.dart | 174 +++++++ .../example/pubspec.lock | 441 ++++++++++++++++ .../example/pubspec.yaml | 86 ++++ .../paperless_document_scanner/ios/.gitignore | 38 ++ .../ios/Assets/.gitkeep | 0 .../Classes/PaperlessDocumentScannerPlugin.h | 4 + .../Classes/PaperlessDocumentScannerPlugin.m | 15 + .../PaperlessDocumentScannerPlugin.swift | 14 + .../ios/Classes/conversion_utils.cpp | 15 + .../ios/Classes/conversion_utils.hpp | 10 + .../ios/Classes/edge_detector.cpp | 163 ++++++ .../ios/Classes/edge_detector.hpp | 17 + .../ios/Classes/image_processor.cpp | 51 ++ .../ios/Classes/image_processor.hpp | 13 + .../ios/Classes/native_edge_detection.cpp | 130 +++++ .../ios/Classes/native_edge_detection.hpp | 47 ++ .../ios/paperless_document_scanner.podspec | 29 ++ .../lib/modules/edge_detection.dart | 87 ++++ .../lib/modules/image_processing.dart | 112 ++++ .../lib/paperless_document_scanner.dart | 2 + .../lib/types/edge_detection_result.dart | 49 ++ .../paperless_document_scanner/pubspec.yaml | 73 +++ 105 files changed, 3998 insertions(+) create mode 100644 packages/paperless_document_scanner/.gitignore create mode 100644 packages/paperless_document_scanner/.metadata create mode 100644 packages/paperless_document_scanner/CHANGELOG.md create mode 100644 packages/paperless_document_scanner/LICENSE create mode 100644 packages/paperless_document_scanner/README.md create mode 100644 packages/paperless_document_scanner/analysis_options.yaml create mode 100644 packages/paperless_document_scanner/android/.gitignore create mode 100644 packages/paperless_document_scanner/android/CMakeLists.txt create mode 100644 packages/paperless_document_scanner/android/build.gradle create mode 100644 packages/paperless_document_scanner/android/settings.gradle create mode 100644 packages/paperless_document_scanner/android/src/main/AndroidManifest.xml create mode 100644 packages/paperless_document_scanner/android/src/main/kotlin/de/astubenbord/paperless_document_scanner/PaperlessDocumentScannerPlugin.kt create mode 100644 packages/paperless_document_scanner/example/.gitignore create mode 100644 packages/paperless_document_scanner/example/README.md create mode 100644 packages/paperless_document_scanner/example/analysis_options.yaml create mode 100644 packages/paperless_document_scanner/example/android/.gitignore create mode 100644 packages/paperless_document_scanner/example/android/app/build.gradle create mode 100644 packages/paperless_document_scanner/example/android/app/src/debug/AndroidManifest.xml create mode 100644 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packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_detection_shape.dart create mode 100644 packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_painter.dart create mode 100644 packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier.dart create mode 100644 packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier_painter.dart create mode 100644 packages/paperless_document_scanner/example/lib/edge_detection_shape/touch_bubble.dart create mode 100644 packages/paperless_document_scanner/example/lib/edge_detector.dart create mode 100644 packages/paperless_document_scanner/example/lib/image_view.dart create mode 100644 packages/paperless_document_scanner/example/lib/main.dart create mode 100644 packages/paperless_document_scanner/example/lib/scan.dart create mode 100644 packages/paperless_document_scanner/example/pubspec.lock create mode 100644 packages/paperless_document_scanner/example/pubspec.yaml create mode 100644 packages/paperless_document_scanner/ios/.gitignore create mode 100644 packages/paperless_document_scanner/ios/Assets/.gitkeep create mode 100644 packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.h create mode 100644 packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.m create mode 100644 packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.swift create mode 100644 packages/paperless_document_scanner/ios/Classes/conversion_utils.cpp create mode 100644 packages/paperless_document_scanner/ios/Classes/conversion_utils.hpp create mode 100644 packages/paperless_document_scanner/ios/Classes/edge_detector.cpp create mode 100644 packages/paperless_document_scanner/ios/Classes/edge_detector.hpp create mode 100644 packages/paperless_document_scanner/ios/Classes/image_processor.cpp create mode 100644 packages/paperless_document_scanner/ios/Classes/image_processor.hpp create mode 100644 packages/paperless_document_scanner/ios/Classes/native_edge_detection.cpp create mode 100644 packages/paperless_document_scanner/ios/Classes/native_edge_detection.hpp create mode 100644 packages/paperless_document_scanner/ios/paperless_document_scanner.podspec create mode 100644 packages/paperless_document_scanner/lib/modules/edge_detection.dart create mode 100644 packages/paperless_document_scanner/lib/modules/image_processing.dart create mode 100644 packages/paperless_document_scanner/lib/paperless_document_scanner.dart create mode 100644 packages/paperless_document_scanner/lib/types/edge_detection_result.dart create mode 100644 packages/paperless_document_scanner/pubspec.yaml diff --git a/packages/paperless_document_scanner/.gitignore b/packages/paperless_document_scanner/.gitignore new file mode 100644 index 0000000..d96b8c5 --- /dev/null +++ b/packages/paperless_document_scanner/.gitignore @@ -0,0 +1,40 @@ +# Miscellaneous +*.class +*.log +*.pyc +*.swp +.DS_Store +.atom/ +.buildlog/ +.history +.svn/ +migrate_working_dir/ + +# IntelliJ related +*.iml +*.ipr +*.iws +.idea/ + +# The .vscode folder contains launch configuration and tasks you configure in +# VS Code which you may wish to be included in version control, so this line +# is commented out by default. +#.vscode/ + +# Flutter/Dart/Pub related +# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock. +/pubspec.lock +**/doc/api/ +.dart_tool/ +.packages +build/ + +android/src/main/jniLibs +android/CMakeFiles +android/Makefile +android/.cxx +CMakeCache.txt +cmake_install.cmake + +ios/opencv2.framework +include \ No newline at end of file diff --git a/packages/paperless_document_scanner/.metadata b/packages/paperless_document_scanner/.metadata new file mode 100644 index 0000000..3bceed1 --- /dev/null +++ b/packages/paperless_document_scanner/.metadata @@ -0,0 +1,33 @@ +# This file tracks properties of this Flutter project. +# Used by Flutter tool to assess capabilities and perform upgrades etc. +# +# This file should be version controlled. + +version: + revision: 9944297138845a94256f1cf37beb88ff9a8e811a + channel: stable + +project_type: plugin + +# Tracks metadata for the flutter migrate command +migration: + platforms: + - platform: root + create_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + base_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + - platform: android + create_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + base_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + - platform: ios + create_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + base_revision: 9944297138845a94256f1cf37beb88ff9a8e811a + + # User provided section + + # List of Local paths (relative to this file) that should be + # ignored by the migrate tool. + # + # Files that are not part of the templates will be ignored by default. + unmanaged_files: + - 'lib/main.dart' + - 'ios/Runner.xcodeproj/project.pbxproj' diff --git a/packages/paperless_document_scanner/CHANGELOG.md b/packages/paperless_document_scanner/CHANGELOG.md new file mode 100644 index 0000000..41cc7d8 --- /dev/null +++ b/packages/paperless_document_scanner/CHANGELOG.md @@ -0,0 +1,3 @@ +## 0.0.1 + +* TODO: Describe initial release. diff --git a/packages/paperless_document_scanner/LICENSE b/packages/paperless_document_scanner/LICENSE new file mode 100644 index 0000000..ba75c69 --- /dev/null +++ b/packages/paperless_document_scanner/LICENSE @@ -0,0 +1 @@ +TODO: Add your license here. diff --git a/packages/paperless_document_scanner/README.md b/packages/paperless_document_scanner/README.md new file mode 100644 index 0000000..0127376 --- /dev/null +++ b/packages/paperless_document_scanner/README.md @@ -0,0 +1,15 @@ +# paperless_document_scanner + +A new Flutter plugin project. + +## Getting Started + +This project is a starting point for a Flutter +[plug-in package](https://flutter.dev/developing-packages/), +a specialized package that includes platform-specific implementation code for +Android and/or iOS. + +For help getting started with Flutter development, view the +[online documentation](https://flutter.dev/docs), which offers tutorials, +samples, guidance on mobile development, and a full API reference. + diff --git a/packages/paperless_document_scanner/analysis_options.yaml b/packages/paperless_document_scanner/analysis_options.yaml new file mode 100644 index 0000000..a5744c1 --- /dev/null +++ b/packages/paperless_document_scanner/analysis_options.yaml @@ -0,0 +1,4 @@ +include: package:flutter_lints/flutter.yaml + +# Additional information about this file can be found at +# https://dart.dev/guides/language/analysis-options diff --git a/packages/paperless_document_scanner/android/.gitignore b/packages/paperless_document_scanner/android/.gitignore new file mode 100644 index 0000000..161bdcd --- /dev/null +++ b/packages/paperless_document_scanner/android/.gitignore @@ -0,0 +1,9 @@ +*.iml +.gradle +/local.properties +/.idea/workspace.xml +/.idea/libraries +.DS_Store +/build +/captures +.cxx diff --git a/packages/paperless_document_scanner/android/CMakeLists.txt b/packages/paperless_document_scanner/android/CMakeLists.txt new file mode 100644 index 0000000..ee3b2ff --- /dev/null +++ b/packages/paperless_document_scanner/android/CMakeLists.txt @@ -0,0 +1,13 @@ +cmake_minimum_required(VERSION 3.6.0) +include_directories(../include) +add_library(lib_opencv SHARED IMPORTED) +set_target_properties(lib_opencv PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libopencv_java4.so) +set(EDGE_DETECTION_DIR "../ios/Classes") +set(SOURCES + ${EDGE_DETECTION_DIR}/native_edge_detection.cpp + ${EDGE_DETECTION_DIR}/edge_detector.cpp + ${EDGE_DETECTION_DIR}/image_processor.cpp + ${EDGE_DETECTION_DIR}/conversion_utils.cpp +) +add_library(native_edge_detection SHARED ${SOURCES}) +target_link_libraries(native_edge_detection lib_opencv) \ No newline at end of file diff --git a/packages/paperless_document_scanner/android/build.gradle b/packages/paperless_document_scanner/android/build.gradle new file mode 100644 index 0000000..abccc1b --- /dev/null +++ b/packages/paperless_document_scanner/android/build.gradle @@ -0,0 +1,68 @@ +group 'de.astubenbord.paperless_document_scanner' +version '1.0-SNAPSHOT' + +buildscript { + ext.kotlin_version = '1.7.10' + repositories { + google() + mavenCentral() + } + + dependencies { + classpath 'com.android.tools.build:gradle:7.2.0' + classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" + } +} + +allprojects { + repositories { + google() + mavenCentral() + } +} + +apply plugin: 'com.android.library' +apply plugin: 'kotlin-android' + +android { + compileSdkVersion 31 + + compileOptions { + sourceCompatibility JavaVersion.VERSION_1_8 + targetCompatibility JavaVersion.VERSION_1_8 + } + + kotlinOptions { + jvmTarget = '1.8' + } + + sourceSets { + main.java.srcDirs += 'src/main/kotlin' + main { + jniLibs.srcDirs = ['jniLibs'] + } + } + + defaultConfig { + minSdkVersion 21 + } + + lintOptions { + disable 'InvalidPackage' + } + + externalNativeBuild { + cmake { + path "CMakeLists.txt" + } + } + + defaultConfig { + externalNativeBuild { + cmake { + cppFlags '-frtti -fexceptions -std=c++11' + arguments "-DANDROID_STL=c++_shared" + } + } + } +} diff --git a/packages/paperless_document_scanner/android/settings.gradle b/packages/paperless_document_scanner/android/settings.gradle new file mode 100644 index 0000000..1fd415e --- /dev/null +++ b/packages/paperless_document_scanner/android/settings.gradle @@ -0,0 +1 @@ +rootProject.name = 'paperless_document_scanner' diff --git a/packages/paperless_document_scanner/android/src/main/AndroidManifest.xml b/packages/paperless_document_scanner/android/src/main/AndroidManifest.xml new file mode 100644 index 0000000..58cd289 --- /dev/null +++ b/packages/paperless_document_scanner/android/src/main/AndroidManifest.xml @@ -0,0 +1,3 @@ + + diff --git a/packages/paperless_document_scanner/android/src/main/kotlin/de/astubenbord/paperless_document_scanner/PaperlessDocumentScannerPlugin.kt b/packages/paperless_document_scanner/android/src/main/kotlin/de/astubenbord/paperless_document_scanner/PaperlessDocumentScannerPlugin.kt new file mode 100644 index 0000000..1375fdb --- /dev/null +++ b/packages/paperless_document_scanner/android/src/main/kotlin/de/astubenbord/paperless_document_scanner/PaperlessDocumentScannerPlugin.kt @@ -0,0 +1,35 @@ +package de.astubenbord.paperless_document_scanner + +import androidx.annotation.NonNull + +import io.flutter.embedding.engine.plugins.FlutterPlugin +import io.flutter.plugin.common.MethodCall +import io.flutter.plugin.common.MethodChannel +import io.flutter.plugin.common.MethodChannel.MethodCallHandler +import io.flutter.plugin.common.MethodChannel.Result + +/** PaperlessDocumentScannerPlugin */ +class PaperlessDocumentScannerPlugin: FlutterPlugin, MethodCallHandler { + /// The MethodChannel that will the communication between Flutter and native Android + /// + /// This local reference serves to register the plugin with the Flutter Engine and unregister it + /// when the Flutter Engine is detached from the Activity + private lateinit var channel : MethodChannel + + override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) { + channel = MethodChannel(flutterPluginBinding.binaryMessenger, "paperless_document_scanner") + channel.setMethodCallHandler(this) + } + + override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: Result) { + if (call.method == "getPlatformVersion") { + result.success("Android ${android.os.Build.VERSION.RELEASE}") + } else { + result.notImplemented() + } + } + + override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) { + channel.setMethodCallHandler(null) + } +} diff --git a/packages/paperless_document_scanner/example/.gitignore b/packages/paperless_document_scanner/example/.gitignore new file mode 100644 index 0000000..24476c5 --- /dev/null +++ b/packages/paperless_document_scanner/example/.gitignore @@ -0,0 +1,44 @@ +# Miscellaneous +*.class +*.log +*.pyc +*.swp +.DS_Store +.atom/ +.buildlog/ +.history +.svn/ +migrate_working_dir/ + +# IntelliJ related +*.iml +*.ipr +*.iws +.idea/ + +# The .vscode folder contains launch configuration and tasks you configure in +# VS Code which you may wish to be included in version control, so this line +# is commented out by default. +#.vscode/ + +# Flutter/Dart/Pub related +**/doc/api/ +**/ios/Flutter/.last_build_id +.dart_tool/ +.flutter-plugins +.flutter-plugins-dependencies +.packages +.pub-cache/ +.pub/ +/build/ + +# Symbolication related +app.*.symbols + +# Obfuscation related +app.*.map.json + +# Android Studio will place build artifacts here +/android/app/debug +/android/app/profile +/android/app/release diff --git a/packages/paperless_document_scanner/example/README.md b/packages/paperless_document_scanner/example/README.md new file mode 100644 index 0000000..00ef291 --- /dev/null +++ b/packages/paperless_document_scanner/example/README.md @@ -0,0 +1,16 @@ +# paperless_document_scanner_example + +Demonstrates how to use the paperless_document_scanner plugin. + +## Getting Started + +This project is a starting point for a Flutter application. + +A few resources to get you started if this is your first Flutter project: + +- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab) +- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook) + +For help getting started with Flutter development, view the +[online documentation](https://docs.flutter.dev/), which offers tutorials, +samples, guidance on mobile development, and a full API reference. diff --git a/packages/paperless_document_scanner/example/analysis_options.yaml b/packages/paperless_document_scanner/example/analysis_options.yaml new file mode 100644 index 0000000..61b6c4d --- /dev/null +++ b/packages/paperless_document_scanner/example/analysis_options.yaml @@ -0,0 +1,29 @@ +# This file configures the analyzer, which statically analyzes Dart code to +# check for errors, warnings, and lints. +# +# The issues identified by the analyzer are surfaced in the UI of Dart-enabled +# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be +# invoked from the command line by running `flutter analyze`. + +# The following line activates a set of recommended lints for Flutter apps, +# packages, and plugins designed to encourage good coding practices. +include: package:flutter_lints/flutter.yaml + +linter: + # The lint rules applied to this project can be customized in the + # section below to disable rules from the `package:flutter_lints/flutter.yaml` + # included above or to enable additional rules. A list of all available lints + # and their documentation is published at + # https://dart-lang.github.io/linter/lints/index.html. + # + # Instead of disabling a lint rule for the entire project in the + # section below, it can also be suppressed for a single line of code + # or a specific dart file by using the `// ignore: name_of_lint` and + # `// ignore_for_file: name_of_lint` syntax on the line or in the file + # producing the lint. + rules: + # avoid_print: false # Uncomment to disable the `avoid_print` rule + # prefer_single_quotes: true # Uncomment to enable the `prefer_single_quotes` rule + +# Additional information about this file can be found at +# https://dart.dev/guides/language/analysis-options diff --git a/packages/paperless_document_scanner/example/android/.gitignore b/packages/paperless_document_scanner/example/android/.gitignore new file mode 100644 index 0000000..6f56801 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/.gitignore @@ -0,0 +1,13 @@ +gradle-wrapper.jar +/.gradle +/captures/ +/gradlew +/gradlew.bat +/local.properties +GeneratedPluginRegistrant.java + +# Remember to never publicly share your keystore. +# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app +key.properties +**/*.keystore +**/*.jks diff --git a/packages/paperless_document_scanner/example/android/app/build.gradle b/packages/paperless_document_scanner/example/android/app/build.gradle new file mode 100644 index 0000000..2cc51c9 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/build.gradle @@ -0,0 +1,71 @@ +def localProperties = new Properties() +def localPropertiesFile = rootProject.file('local.properties') +if (localPropertiesFile.exists()) { + localPropertiesFile.withReader('UTF-8') { reader -> + localProperties.load(reader) + } +} + +def flutterRoot = localProperties.getProperty('flutter.sdk') +if (flutterRoot == null) { + throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.") +} + +def flutterVersionCode = localProperties.getProperty('flutter.versionCode') +if (flutterVersionCode == null) { + flutterVersionCode = '1' +} + +def flutterVersionName = localProperties.getProperty('flutter.versionName') +if (flutterVersionName == null) { + flutterVersionName = '1.0' +} + +apply plugin: 'com.android.application' +apply plugin: 'kotlin-android' +apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle" + +android { + compileSdkVersion flutter.compileSdkVersion + ndkVersion flutter.ndkVersion + + compileOptions { + sourceCompatibility JavaVersion.VERSION_1_8 + targetCompatibility JavaVersion.VERSION_1_8 + } + + kotlinOptions { + jvmTarget = '1.8' + } + + sourceSets { + main.java.srcDirs += 'src/main/kotlin' + } + + defaultConfig { + // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html). + applicationId "de.astubenbord.paperless_document_scanner_example" + // You can update the following values to match your application needs. + // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration. + minSdkVersion 21 + targetSdkVersion 31 + versionCode flutterVersionCode.toInteger() + versionName flutterVersionName + } + + buildTypes { + release { + // TODO: Add your own signing config for the release build. + // Signing with the debug keys for now, so `flutter run --release` works. + signingConfig signingConfigs.debug + } + } +} + +flutter { + source '../..' +} + +dependencies { + implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" +} diff --git a/packages/paperless_document_scanner/example/android/app/src/debug/AndroidManifest.xml b/packages/paperless_document_scanner/example/android/app/src/debug/AndroidManifest.xml new file mode 100644 index 0000000..c5c70ad --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/debug/AndroidManifest.xml @@ -0,0 +1,8 @@ + + + + diff --git a/packages/paperless_document_scanner/example/android/app/src/main/AndroidManifest.xml b/packages/paperless_document_scanner/example/android/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..f7b5595 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/AndroidManifest.xml @@ -0,0 +1,34 @@ + + + + + + + + + + + + + + diff --git a/packages/paperless_document_scanner/example/android/app/src/main/kotlin/de/astubenbord/paperless_document_scanner_example/MainActivity.kt b/packages/paperless_document_scanner/example/android/app/src/main/kotlin/de/astubenbord/paperless_document_scanner_example/MainActivity.kt new file mode 100644 index 0000000..db3cbd9 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/kotlin/de/astubenbord/paperless_document_scanner_example/MainActivity.kt @@ -0,0 +1,6 @@ +package de.astubenbord.paperless_document_scanner_example + +import io.flutter.embedding.android.FlutterActivity + +class MainActivity: FlutterActivity() { +} diff --git a/packages/paperless_document_scanner/example/android/app/src/main/res/drawable-v21/launch_background.xml b/packages/paperless_document_scanner/example/android/app/src/main/res/drawable-v21/launch_background.xml new file mode 100644 index 0000000..f74085f --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/res/drawable-v21/launch_background.xml @@ -0,0 +1,12 @@ + + + + + + + + diff --git a/packages/paperless_document_scanner/example/android/app/src/main/res/drawable/launch_background.xml b/packages/paperless_document_scanner/example/android/app/src/main/res/drawable/launch_background.xml new file mode 100644 index 0000000..304732f --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/res/drawable/launch_background.xml @@ -0,0 +1,12 @@ + + + + + + + + diff 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b/packages/paperless_document_scanner/example/android/app/src/main/res/values-night/styles.xml new file mode 100644 index 0000000..06952be --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/res/values-night/styles.xml @@ -0,0 +1,18 @@ + + + + + + + diff --git a/packages/paperless_document_scanner/example/android/app/src/main/res/values/styles.xml b/packages/paperless_document_scanner/example/android/app/src/main/res/values/styles.xml new file mode 100644 index 0000000..cb1ef88 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/main/res/values/styles.xml @@ -0,0 +1,18 @@ + + + + + + + diff --git a/packages/paperless_document_scanner/example/android/app/src/profile/AndroidManifest.xml b/packages/paperless_document_scanner/example/android/app/src/profile/AndroidManifest.xml new file mode 100644 index 0000000..c5c70ad --- /dev/null +++ b/packages/paperless_document_scanner/example/android/app/src/profile/AndroidManifest.xml @@ -0,0 +1,8 @@ + + + + diff --git a/packages/paperless_document_scanner/example/android/build.gradle b/packages/paperless_document_scanner/example/android/build.gradle new file mode 100644 index 0000000..58a8c74 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/build.gradle @@ -0,0 +1,31 @@ +buildscript { + ext.kotlin_version = '1.7.10' + repositories { + google() + mavenCentral() + } + + dependencies { + classpath 'com.android.tools.build:gradle:7.2.0' + classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" + } +} + +allprojects { + repositories { + google() + mavenCentral() + } +} + +rootProject.buildDir = '../build' +subprojects { + project.buildDir = "${rootProject.buildDir}/${project.name}" +} +subprojects { + project.evaluationDependsOn(':app') +} + +task clean(type: Delete) { + delete rootProject.buildDir +} diff --git a/packages/paperless_document_scanner/example/android/gradle.properties b/packages/paperless_document_scanner/example/android/gradle.properties new file mode 100644 index 0000000..94adc3a --- /dev/null +++ b/packages/paperless_document_scanner/example/android/gradle.properties @@ -0,0 +1,3 @@ +org.gradle.jvmargs=-Xmx1536M +android.useAndroidX=true +android.enableJetifier=true diff --git a/packages/paperless_document_scanner/example/android/gradle/wrapper/gradle-wrapper.properties b/packages/paperless_document_scanner/example/android/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..3c472b9 --- /dev/null +++ b/packages/paperless_document_scanner/example/android/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-all.zip diff --git a/packages/paperless_document_scanner/example/android/settings.gradle b/packages/paperless_document_scanner/example/android/settings.gradle new file mode 100644 index 0000000..44e62bc --- /dev/null +++ b/packages/paperless_document_scanner/example/android/settings.gradle @@ -0,0 +1,11 @@ +include ':app' + +def localPropertiesFile = new File(rootProject.projectDir, "local.properties") +def properties = new Properties() + +assert localPropertiesFile.exists() +localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) } + +def flutterSdkPath = properties.getProperty("flutter.sdk") +assert flutterSdkPath != null, "flutter.sdk not set in local.properties" +apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle" diff --git a/packages/paperless_document_scanner/example/ios/.gitignore b/packages/paperless_document_scanner/example/ios/.gitignore new file mode 100644 index 0000000..7a7f987 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/.gitignore @@ -0,0 +1,34 @@ +**/dgph +*.mode1v3 +*.mode2v3 +*.moved-aside +*.pbxuser +*.perspectivev3 +**/*sync/ +.sconsign.dblite +.tags* +**/.vagrant/ +**/DerivedData/ +Icon? +**/Pods/ +**/.symlinks/ +profile +xcuserdata +**/.generated/ +Flutter/App.framework +Flutter/Flutter.framework +Flutter/Flutter.podspec +Flutter/Generated.xcconfig +Flutter/ephemeral/ +Flutter/app.flx +Flutter/app.zip +Flutter/flutter_assets/ +Flutter/flutter_export_environment.sh +ServiceDefinitions.json +Runner/GeneratedPluginRegistrant.* + +# Exceptions to above rules. +!default.mode1v3 +!default.mode2v3 +!default.pbxuser +!default.perspectivev3 diff --git a/packages/paperless_document_scanner/example/ios/Flutter/AppFrameworkInfo.plist b/packages/paperless_document_scanner/example/ios/Flutter/AppFrameworkInfo.plist new file mode 100644 index 0000000..9625e10 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Flutter/AppFrameworkInfo.plist @@ -0,0 +1,26 @@ + + + + + CFBundleDevelopmentRegion + en + CFBundleExecutable + App + CFBundleIdentifier + 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{ + isa = XCConfigurationList; + buildConfigurations = ( + 97C147061CF9000F007C117D /* Debug */, + 97C147071CF9000F007C117D /* Release */, + 249021D4217E4FDB00AE95B9 /* Profile */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; +/* End XCConfigurationList section */ + }; + rootObject = 97C146E61CF9000F007C117D /* Project object */; +} diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..919434a --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 0000000..18d9810 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings new file mode 100644 index 0000000..f9b0d7c --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings @@ -0,0 +1,8 @@ + + + + + PreviewsEnabled + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme new file mode 100644 index 0000000..c87d15a --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme @@ -0,0 +1,87 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/contents.xcworkspacedata b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..1d526a1 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 0000000..18d9810 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings new file mode 100644 index 0000000..f9b0d7c --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings @@ -0,0 +1,8 @@ + + + + + PreviewsEnabled + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner/AppDelegate.swift b/packages/paperless_document_scanner/example/ios/Runner/AppDelegate.swift new file mode 100644 index 0000000..70693e4 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/AppDelegate.swift @@ -0,0 +1,13 @@ +import UIKit +import Flutter + +@UIApplicationMain +@objc class AppDelegate: FlutterAppDelegate { + override func application( + _ application: UIApplication, + didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? + ) -> Bool { + GeneratedPluginRegistrant.register(with: self) + return super.application(application, didFinishLaunchingWithOptions: launchOptions) + } +} diff --git a/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json new file mode 100644 index 0000000..d36b1fa --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json @@ -0,0 +1,122 @@ +{ + "images" : [ + { + "size" : "20x20", + "idiom" : "iphone", + "filename" : "Icon-App-20x20@2x.png", + "scale" : "2x" + }, + { + "size" : "20x20", + "idiom" : "iphone", + "filename" : "Icon-App-20x20@3x.png", 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a/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png new file mode 100644 index 0000000000000000000000000000000000000000..9da19eacad3b03bb08bbddbbf4ac48dd78b3d838 GIT binary patch literal 68 zcmeAS@N?(olHy`uVBq!ia0vp^j3CUx0wlM}@Gt=>Zci7-kcv6Uzs@r-FtIZ-&5|)J Q1PU{Fy85}Sb4q9e0B4a5jsO4v literal 0 HcmV?d00001 diff --git a/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md new file mode 100644 index 0000000..89c2725 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md @@ -0,0 +1,5 @@ +# Launch Screen Assets + +You can customize the launch screen with your own desired assets by replacing the image files in this directory. + +You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images. \ No newline at end of file diff --git a/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/LaunchScreen.storyboard b/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/LaunchScreen.storyboard new file mode 100644 index 0000000..f2e259c --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/LaunchScreen.storyboard @@ -0,0 +1,37 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/Main.storyboard b/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/Main.storyboard new file mode 100644 index 0000000..f3c2851 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Base.lproj/Main.storyboard @@ -0,0 +1,26 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner/Info.plist b/packages/paperless_document_scanner/example/ios/Runner/Info.plist new file mode 100644 index 0000000..2f37fce --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Info.plist @@ -0,0 +1,51 @@ + + + + + CFBundleDevelopmentRegion + $(DEVELOPMENT_LANGUAGE) + CFBundleDisplayName + Paperless Document Scanner + CFBundleExecutable + $(EXECUTABLE_NAME) + CFBundleIdentifier + $(PRODUCT_BUNDLE_IDENTIFIER) + CFBundleInfoDictionaryVersion + 6.0 + CFBundleName + paperless_document_scanner_example + CFBundlePackageType + APPL + CFBundleShortVersionString + $(FLUTTER_BUILD_NAME) + CFBundleSignature + ???? + CFBundleVersion + $(FLUTTER_BUILD_NUMBER) + LSRequiresIPhoneOS + + UILaunchStoryboardName + LaunchScreen + UIMainStoryboardFile + Main + UISupportedInterfaceOrientations + + UIInterfaceOrientationPortrait + UIInterfaceOrientationLandscapeLeft + UIInterfaceOrientationLandscapeRight + + UISupportedInterfaceOrientations~ipad + + UIInterfaceOrientationPortrait + UIInterfaceOrientationPortraitUpsideDown + UIInterfaceOrientationLandscapeLeft + UIInterfaceOrientationLandscapeRight + + UIViewControllerBasedStatusBarAppearance + + CADisableMinimumFrameDurationOnPhone + + UIApplicationSupportsIndirectInputEvents + + + diff --git a/packages/paperless_document_scanner/example/ios/Runner/Runner-Bridging-Header.h b/packages/paperless_document_scanner/example/ios/Runner/Runner-Bridging-Header.h new file mode 100644 index 0000000..308a2a5 --- /dev/null +++ b/packages/paperless_document_scanner/example/ios/Runner/Runner-Bridging-Header.h @@ -0,0 +1 @@ +#import "GeneratedPluginRegistrant.h" diff --git a/packages/paperless_document_scanner/example/lib/camera_view.dart b/packages/paperless_document_scanner/example/lib/camera_view.dart new file mode 100644 index 0000000..8eae9b6 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/camera_view.dart @@ -0,0 +1,19 @@ +import 'package:camera/camera.dart'; +import 'package:flutter/material.dart'; + +class CameraView extends StatelessWidget { + const CameraView({super.key, required this.controller}); + + final CameraController controller; + + @override + Widget build(BuildContext context) { + if (!controller.value.isInitialized) { + return Container(); + } + + return Center( + child: CameraPreview(controller), + ); + } +} diff --git a/packages/paperless_document_scanner/example/lib/cropping_preview.dart b/packages/paperless_document_scanner/example/lib/cropping_preview.dart new file mode 100644 index 0000000..bad5dfd --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/cropping_preview.dart @@ -0,0 +1,85 @@ +import 'dart:async'; +import 'dart:io'; +import 'dart:typed_data'; +import 'dart:ui' as ui; + +import 'package:flutter/material.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +import 'edge_detection_shape/edge_detection_shape.dart'; + +class ImagePreview extends StatefulWidget { + const ImagePreview({ + super.key, + required this.imagePath, + required this.edgeDetectionResult, + }); + + final String imagePath; + final EdgeDetectionResult? edgeDetectionResult; + + @override + State createState() => _ImagePreviewState(); +} + +class _ImagePreviewState extends State { + GlobalKey imageWidgetKey = GlobalKey(); + + @override + Widget build(BuildContext mainContext) { + return Center( + child: Stack( + fit: StackFit.expand, + children: [ + const Center(child: Text('Loading ...')), + Image.file(File(widget.imagePath), + fit: BoxFit.contain, key: imageWidgetKey), + FutureBuilder( + future: loadUiImage(widget.imagePath), + builder: (context, snapshot) { + if (!snapshot.hasData) { + return const Center( + child: Text("Loading..."), + ); + } else { + return _getEdgePaint(snapshot.data!, context); + } + }), + ], + ), + ); + } + + Widget _getEdgePaint( + ui.Image image, + BuildContext context, + ) { + if (widget.edgeDetectionResult == null) return Container(); + + final keyContext = imageWidgetKey.currentContext; + + if (keyContext == null) { + return Container(); + } + + final box = keyContext.findRenderObject() as RenderBox; + + return EdgeDetectionShape( + originalImageSize: Size( + image.width.toDouble(), + image.height.toDouble(), + ), + renderedImageSize: Size(box.size.width, box.size.height), + edgeDetectionResult: widget.edgeDetectionResult!, + ); + } + + Future loadUiImage(String imageAssetPath) async { + final Uint8List data = await File(imageAssetPath).readAsBytes(); + final Completer completer = Completer(); + ui.decodeImageFromList(Uint8List.view(data.buffer), (ui.Image image) { + return completer.complete(image); + }); + return completer.future; + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/animated_touch_bubble_part.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/animated_touch_bubble_part.dart new file mode 100644 index 0000000..c6e0f42 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/animated_touch_bubble_part.dart @@ -0,0 +1,89 @@ +import 'package:flutter/material.dart'; + +class AnimatedTouchBubblePart extends StatefulWidget { + AnimatedTouchBubblePart({ + required this.dragging, + required this.size, + }); + + final bool dragging; + final double size; + + @override + _AnimatedTouchBubblePartState createState() => + _AnimatedTouchBubblePartState(); +} + +class _AnimatedTouchBubblePartState extends State + with SingleTickerProviderStateMixin { + late AnimationController _controller; + late Animation _colorAnimation; + late Animation _sizeAnimation; + + @override + void didChangeDependencies() { + _controller = AnimationController( + duration: const Duration(milliseconds: 1000), + vsync: this, + ); + + _sizeAnimation = Tween(begin: 0.5, end: 1.0).animate(_controller); + + _colorAnimation = ColorTween( + begin: Theme.of(context).colorScheme.primary, + end: Theme.of(context).colorScheme.primary, + ).animate( + CurvedAnimation( + parent: _controller, + curve: Interval(0.5, 1.0), + ), + ); + + _controller.repeat(); + super.didChangeDependencies(); + } + + @override + void dispose() { + _controller.dispose(); + super.dispose(); + } + + @override + Widget build(BuildContext context) { + return Stack( + children: [ + Center( + child: Container( + width: widget.dragging ? 0 : widget.size / 2, + height: widget.dragging ? 0 : widget.size / 2, + decoration: BoxDecoration( + color: Theme.of(context).accentColor.withOpacity(0.5), + borderRadius: widget.dragging + ? BorderRadius.circular(widget.size) + : BorderRadius.circular(widget.size / 4)))), + AnimatedBuilder( + builder: (context, child) { + return Center( + child: Container( + width: widget.dragging + ? 0 + : widget.size * _sizeAnimation.value, + height: widget.dragging + ? 0 + : widget.size * _sizeAnimation.value, + decoration: BoxDecoration( + border: Border.all( + color: _colorAnimation.value ?? Colors.transparent, + width: widget.size / 20), + borderRadius: widget.dragging + ? BorderRadius.zero + : BorderRadius.circular( + widget.size * _sizeAnimation.value / 2)))); + }, + animation: _controller, + ) + ], + ); + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_detection_shape.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_detection_shape.dart new file mode 100644 index 0000000..2c63ede --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_detection_shape.dart @@ -0,0 +1,213 @@ +import 'dart:math'; +import 'dart:ui'; + +import 'package:flutter/material.dart'; +import 'package:paperless_document_scanner/paperless_document_scanner.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +import 'edge_painter.dart'; +import 'magnifier.dart' as m; +import 'touch_bubble.dart'; + +class EdgeDetectionShape extends StatefulWidget { + const EdgeDetectionShape({ + super.key, + required this.renderedImageSize, + required this.originalImageSize, + required this.edgeDetectionResult, + }); + + final Size renderedImageSize; + final Size originalImageSize; + final EdgeDetectionResult edgeDetectionResult; + + @override + State createState() => _EdgeDetectionShapeState(); +} + +class _EdgeDetectionShapeState extends State { + late double edgeDraggerSize; + + List points = []; + + late Offset _topLeft; + late Offset _topRight; + late Offset _bottomLeft; + late Offset _bottomRight; + + late double renderedImageWidth; + late double renderedImageHeight; + late double top; + late double left; + + Offset? currentDragPosition; + + @override + void didChangeDependencies() { + double shortestSide = min( + MediaQuery.of(context).size.width, MediaQuery.of(context).size.height); + edgeDraggerSize = shortestSide / 12; + super.didChangeDependencies(); + } + + @override + void initState() { + top = 0.0; + left = 0.0; + _topLeft = widget.edgeDetectionResult.topLeft; + _topRight = widget.edgeDetectionResult.topRight; + _bottomLeft = widget.edgeDetectionResult.bottomLeft; + _bottomRight = widget.edgeDetectionResult.bottomRight; + + double widthFactor = + widget.renderedImageSize.width / widget.originalImageSize.width; + double heightFactor = + widget.renderedImageSize.height / widget.originalImageSize.height; + double sizeFactor = min(widthFactor, heightFactor); + + renderedImageHeight = widget.originalImageSize.height * sizeFactor; + top = ((widget.renderedImageSize.height - renderedImageHeight) / 2); + + renderedImageWidth = widget.originalImageSize.width * sizeFactor; + left = ((widget.renderedImageSize.width - renderedImageWidth) / 2); + super.initState(); + } + + @override + Widget build(BuildContext context) { + return m.Magnifier( + visible: currentDragPosition != null, + position: currentDragPosition ?? Offset.zero, + child: Stack( + children: [ + _buildTouchBubbles(), + CustomPaint( + painter: EdgePainter( + points: points, + color: Theme.of(context).colorScheme.primary.withOpacity(0.5), + ), + ) + ], + ), + ); + } + + Offset _getNewPositionAfterDrag(Offset position) { + return Offset( + position.dx / renderedImageWidth, + position.dy / renderedImageHeight, + ); + } + + Offset _clampOffset(Offset givenOffset) { + double absoluteX = givenOffset.dx * renderedImageWidth; + double absoluteY = givenOffset.dy * renderedImageHeight; + + return Offset(absoluteX.clamp(0.0, renderedImageWidth) / renderedImageWidth, + absoluteY.clamp(0.0, renderedImageHeight) / renderedImageHeight); + } + + Widget _buildTouchBubbles() { + points = [ + Offset( + left + _topLeft.dx * renderedImageWidth, + top + _topLeft.dy * renderedImageHeight, + ), + Offset( + left + _topRight.dx * renderedImageWidth, + top + _topRight.dy * renderedImageHeight, + ), + Offset( + left + _bottomRight.dx * renderedImageWidth, + top + _bottomRight.dy * renderedImageHeight, + ), + Offset( + left + _bottomLeft.dx * renderedImageWidth, + top + _bottomLeft.dy * renderedImageHeight, + ), + Offset( + left + _topLeft.dx * renderedImageWidth, + top + _topLeft.dy * renderedImageHeight, + ), + ]; + + return SizedBox( + width: widget.renderedImageSize.width, + height: widget.renderedImageSize.height, + child: Stack( + children: [ + Positioned( + left: points[0].dx - (edgeDraggerSize / 2), + top: points[0].dy - (edgeDraggerSize / 2), + child: TouchBubble( + size: edgeDraggerSize, + onDragFinished: () => setState(() => currentDragPosition = null), + onDrag: (position) { + setState( + () { + currentDragPosition = Offset(points[0].dx, points[0].dy); + _topLeft = _clampOffset( + widget.edgeDetectionResult.topLeft + + _getNewPositionAfterDrag(position), + ); + }, + ); + }, + ), + ), + Positioned( + left: points[1].dx - (edgeDraggerSize / 2), + top: points[1].dy - (edgeDraggerSize / 2), + child: TouchBubble( + size: edgeDraggerSize, + onDrag: (position) { + setState(() { + currentDragPosition = Offset(points[1].dx, points[1].dy); + _topRight = _clampOffset( + widget.edgeDetectionResult.topRight + + _getNewPositionAfterDrag(position), + ); + }); + }, + onDragFinished: () => setState(() => currentDragPosition = null), + ), + ), + Positioned( + left: points[2].dx - (edgeDraggerSize / 2), + top: points[2].dy - (edgeDraggerSize / 2), + child: TouchBubble( + size: edgeDraggerSize, + onDrag: (position) { + setState(() { + currentDragPosition = Offset(points[2].dx, points[2].dy); + _bottomRight = _clampOffset( + widget.edgeDetectionResult.bottomRight + + _getNewPositionAfterDrag(position), + ); + }); + }, + onDragFinished: () => setState(() => currentDragPosition = null), + ), + ), + Positioned( + left: points[3].dx - (edgeDraggerSize / 2), + top: points[3].dy - (edgeDraggerSize / 2), + child: TouchBubble( + size: edgeDraggerSize, + onDrag: (position) { + setState(() { + _bottomLeft = _clampOffset( + widget.edgeDetectionResult.bottomLeft + + _getNewPositionAfterDrag(position), + ); + currentDragPosition = Offset(points[3].dx, points[3].dy); + }); + }, + onDragFinished: () => setState(() => currentDragPosition = null), + ), + ), + ], + ), + ); + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_painter.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_painter.dart new file mode 100644 index 0000000..39e6ad4 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/edge_painter.dart @@ -0,0 +1,25 @@ +import 'dart:ui'; + +import 'package:flutter/material.dart'; + +class EdgePainter extends CustomPainter { + EdgePainter({required this.points, required this.color}); + + final List points; + final Color color; + + @override + void paint(Canvas canvas, Size size) { + final paint = Paint() + ..color = color.withOpacity(0.5) + ..strokeWidth = 2 + ..strokeCap = StrokeCap.round; + + canvas.drawPoints(PointMode.polygon, points, paint); + } + + @override + bool shouldRepaint(CustomPainter oldDelegate) { + return true; + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier.dart new file mode 100644 index 0000000..b00e292 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier.dart @@ -0,0 +1,100 @@ +import 'dart:ui'; +import 'package:flutter/material.dart'; + +import 'magnifier_painter.dart'; + +class Magnifier extends StatefulWidget { + const Magnifier({ + super.key, + required this.child, + required this.position, + this.visible = true, + this.scale = 1.5, + this.size = const Size(160, 160), + }); + + final Widget child; + final Offset position; + final bool visible; + final double scale; + final Size size; + + @override + _MagnifierState createState() => _MagnifierState(); +} + +class _MagnifierState extends State { + late Size _magnifierSize; + late double _scale; + late Matrix4 _matrix; + + @override + void initState() { + _magnifierSize = widget.size; + _scale = widget.scale; + _calculateMatrix(); + + super.initState(); + } + + @override + void didUpdateWidget(Magnifier oldWidget) { + super.didUpdateWidget(oldWidget); + + _calculateMatrix(); + } + + @override + Widget build(BuildContext context) { + return Stack( + children: [ + widget.child, + if (widget.visible && widget.position != null) _getMagnifier(context) + ], + ); + } + + void _calculateMatrix() { + if (widget.position == null) { + return; + } + + setState(() { + double newX = widget.position.dx - (_magnifierSize.width / 2 / _scale); + double newY = widget.position.dy - (_magnifierSize.height / 2 / _scale); + + final Matrix4 updatedMatrix = Matrix4.identity() + ..scale(_scale, _scale) + ..translate(-newX, -newY); + + _matrix = updatedMatrix; + }); + } + + Widget _getMagnifier(BuildContext context) { + return Align( + alignment: _getAlignment(), + child: ClipOval( + child: BackdropFilter( + filter: ImageFilter.matrix(_matrix.storage), + child: CustomPaint( + painter: MagnifierPainter(color: Theme.of(context).accentColor), + size: _magnifierSize, + ), + ), + ), + ); + } + + Alignment _getAlignment() { + if (_bubbleCrossesMagnifier()) { + return Alignment.topRight; + } + + return Alignment.topLeft; + } + + bool _bubbleCrossesMagnifier() => + widget.position.dx < widget.size.width && + widget.position.dy < widget.size.height; +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier_painter.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier_painter.dart new file mode 100644 index 0000000..a0a8075 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/magnifier_painter.dart @@ -0,0 +1,43 @@ +import 'package:flutter/material.dart'; + +class MagnifierPainter extends CustomPainter { + const MagnifierPainter({required this.color, this.strokeWidth = 5}); + + final double strokeWidth; + final Color color; + + @override + void paint(Canvas canvas, Size size) { + _drawCircle(canvas, size); + _drawCrosshair(canvas, size); + } + + void _drawCircle(Canvas canvas, Size size) { + Paint paintObject = Paint() + ..style = PaintingStyle.stroke + ..strokeWidth = strokeWidth + ..color = color; + + canvas.drawCircle( + size.center(Offset(0, 0)), size.longestSide / 2, paintObject); + } + + void _drawCrosshair(Canvas canvas, Size size) { + Paint crossPaint = Paint() + ..strokeWidth = strokeWidth / 2 + ..color = color; + + double crossSize = size.longestSide * 0.04; + + canvas.drawLine(size.center(Offset(-crossSize, -crossSize)), + size.center(Offset(crossSize, crossSize)), crossPaint); + + canvas.drawLine(size.center(Offset(crossSize, -crossSize)), + size.center(Offset(-crossSize, crossSize)), crossPaint); + } + + @override + bool shouldRepaint(CustomPainter oldDelegate) { + return true; + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detection_shape/touch_bubble.dart b/packages/paperless_document_scanner/example/lib/edge_detection_shape/touch_bubble.dart new file mode 100644 index 0000000..2bd4b9e --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detection_shape/touch_bubble.dart @@ -0,0 +1,66 @@ +import 'package:flutter/material.dart'; + +import 'animated_touch_bubble_part.dart'; + +class TouchBubble extends StatefulWidget { + const TouchBubble({ + super.key, + required this.size, + required this.onDrag, + required this.onDragFinished, + }); + + final double size; + final Function onDrag; + final Function onDragFinished; + + @override + State createState() => _TouchBubbleState(); +} + +class _TouchBubbleState extends State { + bool dragging = false; + + @override + Widget build(BuildContext context) { + return GestureDetector( + behavior: HitTestBehavior.opaque, + onPanStart: _startDragging, + onPanUpdate: _drag, + onPanCancel: _cancelDragging, + onPanEnd: (_) => _cancelDragging(), + child: Container( + width: widget.size, + height: widget.size, + decoration: BoxDecoration( + color: Colors.transparent, + borderRadius: BorderRadius.circular(widget.size / 2)), + child: AnimatedTouchBubblePart( + dragging: dragging, + size: widget.size, + ))); + } + + void _startDragging(DragStartDetails data) { + setState(() { + dragging = true; + }); + widget + .onDrag(data.localPosition - Offset(widget.size / 2, widget.size / 2)); + } + + void _cancelDragging() { + setState(() { + dragging = false; + }); + widget.onDragFinished(); + } + + void _drag(DragUpdateDetails data) { + if (!dragging) { + return; + } + + widget.onDrag(data.delta); + } +} diff --git a/packages/paperless_document_scanner/example/lib/edge_detector.dart b/packages/paperless_document_scanner/example/lib/edge_detector.dart new file mode 100644 index 0000000..c17aaca --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/edge_detector.dart @@ -0,0 +1,130 @@ +import 'dart:async'; +import 'dart:isolate'; +import 'dart:typed_data'; + +import 'package:paperless_document_scanner/paperless_document_scanner.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +class EdgeDetector { + static Future startEdgeDetectionFromFileIsolate( + EdgeDetectionFromFileInput edgeDetectionInput, + ) async { + EdgeDetectionResult result = + await EdgeDetection.detectEdgesFromFile(edgeDetectionInput.inputPath); + edgeDetectionInput.sendPort.send(result); + } + + static Future startEdgeDetectionIsolate( + EdgeDetectionInput edgeDetectionInput, + ) async { + EdgeDetectionResult result = + await EdgeDetection.detectEdges(edgeDetectionInput.bytes); + edgeDetectionInput.sendPort.send(result); + } + + static Future processImageIsolate( + ProcessImageInput processImageInput) async { + ImageProcessing.processImage( + processImageInput.bytes, + processImageInput.edgeDetectionResult, + ); + processImageInput.sendPort.send(true); + } + + Future detectEdgesFromFile(String filePath) async { + final port = ReceivePort(); + + _spawnIsolate( + startEdgeDetectionIsolate, + EdgeDetectionFromFileInput( + inputPath: filePath, + sendPort: port.sendPort, + ), + port, + ); + + return await _subscribeToPort(port); + } + + Future processImageFromFile( + String filePath, EdgeDetectionResult edgeDetectionResult) async { + final port = ReceivePort(); + + _spawnIsolate( + processImageIsolate, + ProcessImageFromFileInput( + inputPath: filePath, + edgeDetectionResult: edgeDetectionResult, + sendPort: port.sendPort), + port); + + return await _subscribeToPort(port); + } + + void _spawnIsolate( + void Function(T) function, + dynamic input, + ReceivePort port, + ) { + Isolate.spawn(function, input, + onError: port.sendPort, onExit: port.sendPort); + } + + Future _subscribeToPort(ReceivePort port) async { + late StreamSubscription sub; + + var completer = Completer(); + + sub = port.listen((result) async { + print(result); + await sub.cancel(); + completer.complete(await result); + }); + + return completer.future; + } +} + +class EdgeDetectionFromFileInput { + EdgeDetectionFromFileInput({ + required this.inputPath, + required this.sendPort, + }); + + final String inputPath; + final SendPort sendPort; +} + +class EdgeDetectionInput { + EdgeDetectionInput({ + required this.bytes, + required this.sendPort, + }); + + final Uint8List bytes; + final SendPort sendPort; +} + +class ProcessImageInput { + ProcessImageInput({ + required this.bytes, + required this.edgeDetectionResult, + required this.sendPort, + }); + + final Uint8List bytes; + final EdgeDetectionResult edgeDetectionResult; + final SendPort sendPort; +} + +class ProcessImageFromFileInput { + ProcessImageFromFileInput({ + required this.inputPath, + required this.edgeDetectionResult, + required this.sendPort, + }); + + final String inputPath; + final EdgeDetectionResult edgeDetectionResult; + final SendPort sendPort; +} diff --git a/packages/paperless_document_scanner/example/lib/image_view.dart b/packages/paperless_document_scanner/example/lib/image_view.dart new file mode 100644 index 0000000..84bc941 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/image_view.dart @@ -0,0 +1,25 @@ +import 'dart:io'; +import 'package:flutter/material.dart'; + +class ImageView extends StatefulWidget { + const ImageView({super.key, required this.imagePath}); + + final String imagePath; + + @override + State createState() => _ImageViewState(); +} + +class _ImageViewState extends State { + GlobalKey imageWidgetKey = GlobalKey(); + + @override + Widget build(BuildContext mainContext) { + return Center( + child: Image.file( + File(widget.imagePath), + fit: BoxFit.contain, + ), + ); + } +} diff --git a/packages/paperless_document_scanner/example/lib/main.dart b/packages/paperless_document_scanner/example/lib/main.dart new file mode 100644 index 0000000..19f8648 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/main.dart @@ -0,0 +1,113 @@ +import 'dart:typed_data'; + +import 'package:camera/camera.dart'; +import 'package:flutter/material.dart'; +import 'package:flutter/services.dart'; +import 'package:image/image.dart' as imglib; +import 'scan.dart'; + +late final List cameras; +void main() async { + WidgetsFlutterBinding.ensureInitialized(); + cameras = await availableCameras(); + runApp(const EdgeDetectionApp()); +} + +class EdgeDetectionApp extends StatefulWidget { + const EdgeDetectionApp({super.key}); + + @override + State createState() => _EdgeDetectionAppState(); +} + +class _EdgeDetectionAppState extends State { + CameraImage? _image; + late final CameraController _controller; + + @override + void initState() { + super.initState(); + + () async { + _controller = CameraController( + cameras + .where( + (element) => element.lensDirection == CameraLensDirection.back) + .first, + ResolutionPreset.low, + enableAudio: false, + ); + await _controller.initialize(); + _controller.startImageStream((image) { + setState(() => _image = image); + }); + }(); + } + + Uint8List concatenatePlanes(List planes) { + final WriteBuffer allBytes = WriteBuffer(); + for (final plane in planes) { + allBytes.putUint8List(plane.bytes); + } + return allBytes.done().buffer.asUint8List(); + } + + Image convertYUV420toImageColor(CameraImage image) { + final int width = image.width; + final int height = image.height; + final int uvRowStride = image.planes[1].bytesPerRow; + final int uvPixelStride = image.planes[1].bytesPerPixel!; + + print("uvRowStride: " + uvRowStride.toString()); + print("uvPixelStride: " + uvPixelStride.toString()); + + // imgLib -> Image package from https://pub.dartlang.org/packages/image + var img = imglib.Image( + width: width, + height: height, + ); // Create Image buffer + + // Fill image buffer with plane[0] from YUV420_888 + for (int x = 0; x < width; x++) { + for (int y = 0; y < height; y++) { + final int uvIndex = + uvPixelStride * (x / 2).floor() + uvRowStride * (y / 2).floor(); + final int index = y * width + x; + + final yp = image.planes[0].bytes[index]; + final up = image.planes[1].bytes[uvIndex]; + final vp = image.planes[2].bytes[uvIndex]; + // Calculate pixel color + int r = (yp + vp * 1436 / 1024 - 179).round().clamp(0, 255); + int g = (yp - up * 46549 / 131072 + 44 - vp * 93604 / 131072 + 91) + .round() + .clamp(0, 255); + int b = (yp + up * 1814 / 1024 - 227).round().clamp(0, 255); + // color: 0x FF FF FF FF + // A B G R + img.data?.setPixelRgb(x, y, r, g, b); + } + } + + imglib.PngEncoder pngEncoder = new imglib.PngEncoder(level: 0); + final png = pngEncoder.encode(img); + return Image.memory(png); + } + + @override + Widget build(BuildContext context) { + return MaterialApp( + title: 'Flutter Demo', + theme: ThemeData( + visualDensity: VisualDensity.adaptivePlatformDensity, + ), + home: Scaffold( + body: Center( + child: _image != null + ? convertYUV420toImageColor(_image!) + : Placeholder(), + ), + ), + ); + } +} diff --git a/packages/paperless_document_scanner/example/lib/scan.dart b/packages/paperless_document_scanner/example/lib/scan.dart new file mode 100644 index 0000000..0b2a419 --- /dev/null +++ b/packages/paperless_document_scanner/example/lib/scan.dart @@ -0,0 +1,174 @@ +import 'dart:async'; +import 'dart:developer'; + +import 'package:camera/camera.dart'; +import 'package:flutter/material.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +import 'camera_view.dart'; +import 'cropping_preview.dart'; +import 'edge_detector.dart'; +import 'image_view.dart'; + +class Scan extends StatefulWidget { + const Scan({ + super.key, + required, + required this.cameras, + }); + final List cameras; + @override + State createState() => _ScanState(); +} + +class _ScanState extends State { + late final CameraController controller; + String? imagePath; + String? croppedImagePath; + EdgeDetectionResult? edgeDetectionResult; + + @override + void initState() { + super.initState(); + controller = CameraController( + widget.cameras[0], + ResolutionPreset.veryHigh, + imageFormatGroup: ImageFormatGroup.jpeg, + enableAudio: false, + ); + () async { + await controller.initialize(); + log(controller.value.toString()); + }(); + } + + @override + void dispose() { + controller.dispose(); + super.dispose(); + } + + @override + Widget build(BuildContext context) { + return Scaffold( + body: Stack( + children: [ + _getMainWidget(), + _getBottomBar(), + ], + ), + ); + } + + Widget _getMainWidget() { + if (croppedImagePath != null) { + return ImageView(imagePath: croppedImagePath!); + } + + if (imagePath == null && edgeDetectionResult == null) { + return CameraView(controller: controller); + } + + return ImagePreview( + imagePath: imagePath!, + edgeDetectionResult: edgeDetectionResult, + ); + } + + Widget _getButtonRow() { + if (imagePath != null) { + return Align( + alignment: Alignment.bottomCenter, + child: FloatingActionButton( + child: Icon(Icons.check), + onPressed: () async { + if (croppedImagePath == null) { + return _processImage(imagePath!, edgeDetectionResult!); + } + + setState(() { + imagePath = null; + edgeDetectionResult = null; + croppedImagePath = null; + }); + }, + ), + ); + } + + return Row( + mainAxisAlignment: MainAxisAlignment.center, + children: [ + FloatingActionButton( + foregroundColor: Colors.white, + child: Icon(Icons.camera_alt), + onPressed: onTakePictureButtonPressed, + ), + ], + ); + } + + String timestamp() => DateTime.now().millisecondsSinceEpoch.toString(); + + Future takePicture() async { + if (!controller.value.isInitialized) { + throw Exception("Select camera first!"); + } + + final file = await controller.takePicture(); + + return file.path; + } + + Future _detectEdges(String filePath) async { + if (!mounted) { + return; + } + + setState(() { + imagePath = filePath; + }); + + EdgeDetectionResult result = + await EdgeDetector().detectEdgesFromFile(filePath); + + setState(() { + edgeDetectionResult = result; + }); + } + + Future _processImage( + String filePath, EdgeDetectionResult edgeDetectionResult) async { + if (!mounted) { + return; + } + + bool result = await EdgeDetector() + .processImageFromFile(filePath, edgeDetectionResult); + + if (result == false) { + return; + } + + setState(() { + imageCache.clearLiveImages(); + imageCache.clear(); + croppedImagePath = imagePath; + }); + } + + void onTakePictureButtonPressed() async { + String filePath = await takePicture(); + + log('Picture saved to $filePath'); + + await _detectEdges(filePath); + } + + Padding _getBottomBar() { + return Padding( + padding: EdgeInsets.only(bottom: 32), + child: Align(alignment: Alignment.bottomCenter, child: _getButtonRow()), + ); + } +} diff --git a/packages/paperless_document_scanner/example/pubspec.lock b/packages/paperless_document_scanner/example/pubspec.lock new file mode 100644 index 0000000..3f47cac --- /dev/null +++ b/packages/paperless_document_scanner/example/pubspec.lock @@ -0,0 +1,441 @@ +# Generated by pub +# See https://dart.dev/tools/pub/glossary#lockfile +packages: + archive: + dependency: transitive + description: + name: archive + sha256: d6347d54a2d8028e0437e3c099f66fdb8ae02c4720c1e7534c9f24c10351f85d + url: "https://pub.dev" + source: hosted + version: "3.3.6" + async: + dependency: transitive + description: + name: async + sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0 + url: "https://pub.dev" + source: hosted + version: "2.10.0" + boolean_selector: + dependency: transitive + description: + name: boolean_selector + sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66" + url: "https://pub.dev" + source: hosted + version: "2.1.1" + camera: + dependency: "direct main" + description: + name: camera + sha256: e7ac55af24a890d20276821eb3c95857074d03b7de6f9892b99a205ee30bd179 + url: "https://pub.dev" + source: hosted + version: "0.10.3" + camera_android: + dependency: transitive + description: + name: camera_android + sha256: e491c836147f60dd8a54cf3895fd2960e13b21b78a9d15b563a1b6c70894f142 + url: "https://pub.dev" + source: hosted + version: "0.10.4" + camera_avfoundation: + dependency: transitive + description: + name: camera_avfoundation + sha256: "6a68c20593d4cd58974d555f74a48b244f9db28cc9156de57781122d11b8754b" + url: "https://pub.dev" + source: hosted + version: "0.9.11" + camera_platform_interface: + dependency: transitive + description: + name: camera_platform_interface + sha256: b632be28e61d00a233f67d98ea90fd7041956f27a1c65500188ee459be60e15f + url: "https://pub.dev" + source: hosted + version: "2.4.0" + camera_web: + dependency: transitive + description: + name: camera_web + sha256: "496de93c5d462738ce991dbfe91fb19026f115ed36406700a20a380fb0018299" + url: "https://pub.dev" + source: hosted + version: "0.3.1+1" + characters: + dependency: transitive + description: + name: characters + sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c + url: "https://pub.dev" + source: hosted + version: "1.2.1" + clock: + dependency: transitive + description: + name: clock + sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf + url: "https://pub.dev" + source: hosted + version: "1.1.1" + collection: + dependency: transitive + description: + name: collection + sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0 + url: "https://pub.dev" + source: hosted + version: "1.17.0" + convert: + dependency: transitive + description: + name: convert + sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592" + url: "https://pub.dev" + source: hosted + version: "3.1.1" + cross_file: + dependency: transitive + description: + name: cross_file + sha256: "0b0036e8cccbfbe0555fd83c1d31a6f30b77a96b598b35a5d36dd41f718695e9" + url: "https://pub.dev" + source: hosted + version: "0.3.3+4" + crypto: + dependency: transitive + description: + name: crypto + sha256: aa274aa7774f8964e4f4f38cc994db7b6158dd36e9187aaceaddc994b35c6c67 + url: "https://pub.dev" + source: hosted + version: "3.0.2" + cupertino_icons: + dependency: "direct main" + description: + name: cupertino_icons + sha256: e35129dc44c9118cee2a5603506d823bab99c68393879edb440e0090d07586be + url: "https://pub.dev" + source: hosted + version: "1.0.5" + fake_async: + dependency: transitive + description: + name: fake_async + sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78" + url: "https://pub.dev" + source: hosted + version: "1.3.1" + ffi: + dependency: transitive + description: + name: ffi + sha256: a38574032c5f1dd06c4aee541789906c12ccaab8ba01446e800d9c5b79c4a978 + url: "https://pub.dev" + source: hosted + version: "2.0.1" + file: + dependency: transitive + description: + name: file + sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d" + url: "https://pub.dev" + source: hosted + version: "6.1.4" + flutter: + dependency: "direct main" + description: flutter + source: sdk + version: "0.0.0" + flutter_lints: + dependency: "direct dev" + description: + name: flutter_lints + sha256: aeb0b80a8b3709709c9cc496cdc027c5b3216796bc0af0ce1007eaf24464fd4c + url: "https://pub.dev" + source: hosted + version: "2.0.1" + flutter_plugin_android_lifecycle: + dependency: transitive + description: + name: flutter_plugin_android_lifecycle + sha256: "60fc7b78455b94e6de2333d2f95196d32cf5c22f4b0b0520a628804cb463503b" + url: "https://pub.dev" + source: hosted + version: "2.0.7" + flutter_test: + dependency: "direct dev" + description: flutter + source: sdk + version: "0.0.0" + flutter_web_plugins: + dependency: transitive + description: flutter + source: sdk + version: "0.0.0" + image: + dependency: "direct main" + description: + name: image + sha256: "483a389d6ccb292b570c31b3a193779b1b0178e7eb571986d9a49904b6861227" + url: "https://pub.dev" + source: hosted + version: "4.0.15" + js: + dependency: transitive + description: + name: js + sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7" + url: "https://pub.dev" + source: hosted + version: "0.6.5" + lints: + dependency: transitive + description: + name: lints + sha256: "5e4a9cd06d447758280a8ac2405101e0e2094d2a1dbdd3756aec3fe7775ba593" + url: "https://pub.dev" + source: hosted + version: "2.0.1" + matcher: + dependency: transitive + description: + name: matcher + sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72" + url: "https://pub.dev" + source: hosted + version: "0.12.13" + material_color_utilities: + dependency: transitive + description: + name: material_color_utilities + sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724 + url: "https://pub.dev" + source: hosted + version: "0.2.0" + meta: + dependency: transitive + description: + name: meta + sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42" + url: "https://pub.dev" + source: hosted + version: "1.8.0" + paperless_document_scanner: + dependency: "direct main" + description: + path: ".." + relative: true + source: path + version: "0.0.1" + path: + dependency: transitive + description: + name: path + sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b + url: "https://pub.dev" + source: hosted + version: "1.8.2" + path_provider: + dependency: "direct main" + description: + name: path_provider + sha256: dcea5feb97d8abf90cab9e9030b497fb7c3cbf26b7a1fe9e3ef7dcb0a1ddec95 + url: "https://pub.dev" + source: hosted + version: "2.0.12" + path_provider_android: + dependency: transitive + description: + name: path_provider_android + sha256: a776c088d671b27f6e3aa8881d64b87b3e80201c64e8869b811325de7a76c15e + url: "https://pub.dev" + source: hosted + version: "2.0.22" + path_provider_foundation: + dependency: transitive + description: + name: path_provider_foundation + sha256: "62a68e7e1c6c459f9289859e2fae58290c981ce21d1697faf54910fe1faa4c74" + url: "https://pub.dev" + source: hosted + version: "2.1.1" + path_provider_linux: + dependency: transitive + description: + name: path_provider_linux + sha256: "2e32f1640f07caef0d3cb993680f181c79e54a3827b997d5ee221490d131fbd9" + url: "https://pub.dev" + source: hosted + version: "2.1.8" + path_provider_platform_interface: + dependency: transitive + description: + name: path_provider_platform_interface + sha256: f0abc8ebd7253741f05488b4813d936b4d07c6bae3e86148a09e342ee4b08e76 + url: "https://pub.dev" + source: hosted + version: "2.0.5" + path_provider_windows: + dependency: transitive + description: + name: path_provider_windows + sha256: bcabbe399d4042b8ee687e17548d5d3f527255253b4a639f5f8d2094a9c2b45c + url: "https://pub.dev" + source: hosted + version: "2.1.3" + petitparser: + dependency: transitive + description: + name: petitparser + sha256: "49392a45ced973e8d94a85fdb21293fbb40ba805fc49f2965101ae748a3683b4" + url: "https://pub.dev" + source: hosted + version: "5.1.0" + platform: + dependency: transitive + description: + name: platform + sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76" + url: "https://pub.dev" + source: hosted + version: "3.1.0" + plugin_platform_interface: + dependency: transitive + description: + name: plugin_platform_interface + sha256: dbf0f707c78beedc9200146ad3cb0ab4d5da13c246336987be6940f026500d3a + url: "https://pub.dev" + source: hosted + version: "2.1.3" + pointycastle: + dependency: transitive + description: + name: pointycastle + sha256: db7306cf0249f838d1a24af52b5a5887c5bf7f31d8bb4e827d071dc0939ad346 + url: "https://pub.dev" + source: hosted + version: "3.6.2" + process: + dependency: transitive + description: + name: process + sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09" + url: "https://pub.dev" + source: hosted + version: "4.2.4" + quiver: + dependency: transitive + description: + name: quiver + sha256: b1c1ac5ce6688d77f65f3375a9abb9319b3cb32486bdc7a1e0fdf004d7ba4e47 + url: "https://pub.dev" + source: hosted + version: "3.2.1" + sky_engine: + dependency: transitive + description: flutter + source: sdk + version: "0.0.99" + source_span: + dependency: transitive + description: + name: source_span + sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250 + url: "https://pub.dev" + source: hosted + version: "1.9.1" + stack_trace: + dependency: transitive + description: + name: stack_trace + sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5 + url: "https://pub.dev" + source: hosted + version: "1.11.0" + stream_channel: + dependency: transitive + description: + name: stream_channel + sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8" + url: "https://pub.dev" + source: hosted + version: "2.1.1" + stream_transform: + dependency: transitive + description: + name: stream_transform + sha256: "14a00e794c7c11aa145a170587321aedce29769c08d7f58b1d141da75e3b1c6f" + url: "https://pub.dev" + source: hosted + version: "2.1.0" + string_scanner: + dependency: transitive + description: + name: string_scanner + sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde" + url: "https://pub.dev" + source: hosted + version: "1.2.0" + term_glyph: + dependency: transitive + description: + name: term_glyph + sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84 + url: "https://pub.dev" + source: hosted + version: "1.2.1" + test_api: + dependency: transitive + description: + name: test_api + sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206 + url: "https://pub.dev" + source: hosted + version: "0.4.16" + typed_data: + dependency: transitive + description: + name: typed_data + sha256: "26f87ade979c47a150c9eaab93ccd2bebe70a27dc0b4b29517f2904f04eb11a5" + url: "https://pub.dev" + source: hosted + version: "1.3.1" + vector_math: + dependency: transitive + description: + name: vector_math + sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803" + url: "https://pub.dev" + source: hosted + version: "2.1.4" + win32: + dependency: transitive + description: + name: win32 + sha256: c9ebe7ee4ab0c2194e65d3a07d8c54c5d00bb001b76081c4a04cdb8448b59e46 + url: "https://pub.dev" + source: hosted + version: "3.1.3" + xdg_directories: + dependency: transitive + description: + name: xdg_directories + sha256: ee1505df1426458f7f60aac270645098d318a8b4766d85fde75f76f2e21807d1 + url: "https://pub.dev" + source: hosted + version: "1.0.0" + xml: + dependency: transitive + description: + name: xml + sha256: "979ee37d622dec6365e2efa4d906c37470995871fe9ae080d967e192d88286b5" + url: "https://pub.dev" + source: hosted + version: "6.2.2" +sdks: + dart: ">=2.19.2 <3.0.0" + flutter: ">=3.0.0" diff --git a/packages/paperless_document_scanner/example/pubspec.yaml b/packages/paperless_document_scanner/example/pubspec.yaml new file mode 100644 index 0000000..6e36e13 --- /dev/null +++ b/packages/paperless_document_scanner/example/pubspec.yaml @@ -0,0 +1,86 @@ +name: paperless_document_scanner_example +description: Demonstrates how to use the paperless_document_scanner plugin. +# The following line prevents the package from being accidentally published to +# pub.dev using `flutter pub publish`. This is preferred for private packages. +publish_to: 'none' # Remove this line if you wish to publish to pub.dev + +environment: + sdk: '>=2.19.2 <3.0.0' + +# Dependencies specify other packages that your package needs in order to work. +# To automatically upgrade your package dependencies to the latest versions +# consider running `flutter pub upgrade --major-versions`. Alternatively, +# dependencies can be manually updated by changing the version numbers below to +# the latest version available on pub.dev. To see which dependencies have newer +# versions available, run `flutter pub outdated`. +dependencies: + flutter: + sdk: flutter + + paperless_document_scanner: + # When depending on this package from a real application you should use: + # paperless_document_scanner: ^x.y.z + # See https://dart.dev/tools/pub/dependencies#version-constraints + # The example app is bundled with the plugin so we use a path dependency on + # the parent directory to use the current plugin's version. + path: ../ + + # The following adds the Cupertino Icons font to your application. + # Use with the CupertinoIcons class for iOS style icons. + cupertino_icons: ^1.0.2 + path_provider: ^2.0.12 + camera: ^0.10.3 + image: ^4.0.15 + +dev_dependencies: + flutter_test: + sdk: flutter + + # The "flutter_lints" package below contains a set of recommended lints to + # encourage good coding practices. The lint set provided by the package is + # activated in the `analysis_options.yaml` file located at the root of your + # package. See that file for information about deactivating specific lint + # rules and activating additional ones. + flutter_lints: ^2.0.0 + +# For information on the generic Dart part of this file, see the +# following page: https://dart.dev/tools/pub/pubspec + +# The following section is specific to Flutter packages. +flutter: + + # The following line ensures that the Material Icons font is + # included with your application, so that you can use the icons in + # the material Icons class. + uses-material-design: true + + # To add assets to your application, add an assets section, like this: + # assets: + # - images/a_dot_burr.jpeg + # - images/a_dot_ham.jpeg + + # An image asset can refer to one or more resolution-specific "variants", see + # https://flutter.dev/assets-and-images/#resolution-aware + + # For details regarding adding assets from package dependencies, see + # https://flutter.dev/assets-and-images/#from-packages + + # To add custom fonts to your application, add a fonts section here, + # in this "flutter" section. Each entry in this list should have a + # "family" key with the font family name, and a "fonts" key with a + # list giving the asset and other descriptors for the font. For + # example: + # fonts: + # - family: Schyler + # fonts: + # - asset: fonts/Schyler-Regular.ttf + # - asset: fonts/Schyler-Italic.ttf + # style: italic + # - family: Trajan Pro + # fonts: + # - asset: fonts/TrajanPro.ttf + # - asset: fonts/TrajanPro_Bold.ttf + # weight: 700 + # + # For details regarding fonts from package dependencies, + # see https://flutter.dev/custom-fonts/#from-packages diff --git a/packages/paperless_document_scanner/ios/.gitignore b/packages/paperless_document_scanner/ios/.gitignore new file mode 100644 index 0000000..0c88507 --- /dev/null +++ b/packages/paperless_document_scanner/ios/.gitignore @@ -0,0 +1,38 @@ +.idea/ +.vagrant/ +.sconsign.dblite +.svn/ + +.DS_Store +*.swp +profile + +DerivedData/ +build/ +GeneratedPluginRegistrant.h +GeneratedPluginRegistrant.m + +.generated/ + +*.pbxuser +*.mode1v3 +*.mode2v3 +*.perspectivev3 + +!default.pbxuser +!default.mode1v3 +!default.mode2v3 +!default.perspectivev3 + +xcuserdata + +*.moved-aside + +*.pyc +*sync/ +Icon? +.tags* + +/Flutter/Generated.xcconfig +/Flutter/ephemeral/ +/Flutter/flutter_export_environment.sh \ No newline at end of file diff --git a/packages/paperless_document_scanner/ios/Assets/.gitkeep b/packages/paperless_document_scanner/ios/Assets/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.h b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.h new file mode 100644 index 0000000..ec31586 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.h @@ -0,0 +1,4 @@ +#import + +@interface PaperlessDocumentScannerPlugin : NSObject +@end diff --git a/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.m b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.m new file mode 100644 index 0000000..21a7cc7 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.m @@ -0,0 +1,15 @@ +#import "SimpleEdgeDetectionPlugin.h" +#if __has_include() +#import +#else +// Support project import fallback if the generated compatibility header +// is not copied when this plugin is created as a library. +// https://forums.swift.org/t/swift-static-libraries-dont-copy-generated-objective-c-header/19816 +#import "paperless_document_scanner-Swift.h" +#endif + +@implementation SimpleEdgeDetectionPlugin ++ (void)registerWithRegistrar:(NSObject*)registrar { + [SwiftSimpleEdgeDetectionPlugin registerWithRegistrar:registrar]; +} +@end diff --git a/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.swift b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.swift new file mode 100644 index 0000000..da51f76 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/PaperlessDocumentScannerPlugin.swift @@ -0,0 +1,14 @@ +import Flutter +import UIKit + +public class PaperlessDocumentScannerPlugin: NSObject, FlutterPlugin { + public static func register(with registrar: FlutterPluginRegistrar) { + let channel = FlutterMethodChannel(name: "paperless_document_scanner", binaryMessenger: registrar.messenger()) + let instance = PaperlessDocumentScannerPlugin() + registrar.addMethodCallDelegate(instance, channel: channel) + } + + public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) { + result("iOS " + UIDevice.current.systemVersion) + } +} diff --git a/packages/paperless_document_scanner/ios/Classes/conversion_utils.cpp b/packages/paperless_document_scanner/ios/Classes/conversion_utils.cpp new file mode 100644 index 0000000..9de1b31 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/conversion_utils.cpp @@ -0,0 +1,15 @@ +#include "conversion_utils.hpp" +using namespace cv; +uint8_t * ConversionUtils::matrix_to_bytearray(Mat mat) +{ + int size = mat.total() * mat.elemSize(); + uint8_t *bytes = (uint8_t *)malloc(size); + std::memcpy(bytes, mat.data, size * sizeof(uint8_t)); + return bytes; +} + +Mat ConversionUtils::bytearray_to_matrix(uint8_t *bytes, int byteCount) +{ + std::vector buf(bytes, bytes + byteCount); + return imdecode(buf, IMREAD_COLOR); +} \ No newline at end of file diff --git a/packages/paperless_document_scanner/ios/Classes/conversion_utils.hpp b/packages/paperless_document_scanner/ios/Classes/conversion_utils.hpp new file mode 100644 index 0000000..de1c3b9 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/conversion_utils.hpp @@ -0,0 +1,10 @@ +#include + +using namespace cv; +using namespace std; + +class ConversionUtils { + public: + static uint8_t *matrix_to_bytearray(Mat mat); + static Mat bytearray_to_matrix(uint8_t *bytes, int byteCount); +}; diff --git a/packages/paperless_document_scanner/ios/Classes/edge_detector.cpp b/packages/paperless_document_scanner/ios/Classes/edge_detector.cpp new file mode 100644 index 0000000..bcdaf3d --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/edge_detector.cpp @@ -0,0 +1,163 @@ +#include "edge_detector.hpp" + +#include +#include + +using namespace cv; +using namespace std; + +// helper function: +// finds a cosine of angle between vectors +// from pt0->pt1 and from pt0->pt2 +double EdgeDetector::get_cosine_angle_between_vectors(cv::Point pt1, cv::Point pt2, cv::Point pt0) +{ + double dx1 = pt1.x - pt0.x; + double dy1 = pt1.y - pt0.y; + double dx2 = pt2.x - pt0.x; + double dy2 = pt2.y - pt0.y; + return (dx1*dx2 + dy1*dy2)/sqrt((dx1*dx1 + dy1*dy1)*(dx2*dx2 + dy2*dy2) + 1e-10); +} + +vector image_to_vector(Mat& image) +{ + int imageWidth = image.size().width; + int imageHeight = image.size().height; + + return { + cv::Point(0, 0), + cv::Point(imageWidth, 0), + cv::Point(0, imageHeight), + cv::Point(imageWidth, imageHeight) + }; +} + +vector EdgeDetector::detect_edges(Mat& image) +{ + vector> squares = find_squares(image); + vector* biggestSquare = NULL; + + // Sort so that the points are ordered clockwise + + struct sortY { + bool operator() (cv::Point pt1, cv::Point pt2) { return (pt1.y < pt2.y);} + } orderRectangleY; + struct sortX { + bool operator() (cv::Point pt1, cv::Point pt2) { return (pt1.x < pt2.x);} + } orderRectangleX; + + for (int i = 0; i < squares.size(); i++) { + vector* currentSquare = &squares[i]; + + std::sort(currentSquare->begin(),currentSquare->end(), orderRectangleY); + std::sort(currentSquare->begin(),currentSquare->begin()+2, orderRectangleX); + std::sort(currentSquare->begin()+2,currentSquare->end(), orderRectangleX); + + float currentSquareWidth = get_width(*currentSquare); + float currentSquareHeight = get_height(*currentSquare); + + if (currentSquareWidth < image.size().width / 5 || currentSquareHeight < image.size().height / 5) { + continue; + } + + if (currentSquareWidth > image.size().width * 0.99 || currentSquareHeight > image.size().height * 0.99) { + continue; + } + + if (biggestSquare == NULL) { + biggestSquare = currentSquare; + continue; + } + + float biggestSquareWidth = get_width(*biggestSquare); + float biggestSquareHeight = get_height(*biggestSquare); + + if (currentSquareWidth * currentSquareHeight >= biggestSquareWidth * biggestSquareHeight) { + biggestSquare = currentSquare; + } + + } + + if (biggestSquare == NULL) { + return image_to_vector(image); + } + + std::sort(biggestSquare->begin(),biggestSquare->end(), orderRectangleY); + std::sort(biggestSquare->begin(),biggestSquare->begin()+2, orderRectangleX); + std::sort(biggestSquare->begin()+2,biggestSquare->end(), orderRectangleX); + + return *biggestSquare; +} + +float EdgeDetector::get_height(vector& square) { + float upperLeftToLowerRight = square[3].y - square[0].y; + float upperRightToLowerLeft = square[1].y - square[2].y; + + return max(upperLeftToLowerRight, upperRightToLowerLeft); +} + +float EdgeDetector::get_width(vector& square) { + float upperLeftToLowerRight = square[3].x - square[0].x; + float upperRightToLowerLeft = square[1].x - square[2].x; + + return max(upperLeftToLowerRight, upperRightToLowerLeft); +} + +cv::Mat EdgeDetector::debug_squares( cv::Mat image ) +{ + vector > squares = find_squares(image); + + for (const auto & square : squares) { + // draw rotated rect + cv::RotatedRect minRect = minAreaRect(cv::Mat(square)); + cv::Point2f rect_points[4]; + minRect.points( rect_points ); + for ( int j = 0; j < 4; j++ ) { + cv::line( image, rect_points[j], rect_points[(j+1)%4], cv::Scalar(0,0,255), 1, 8 ); // blue + } + } + + return image; +} + +vector > EdgeDetector::find_squares(Mat& image) +{ + vector usedThresholdLevel; + vector > squares; + + Mat gray0(image.size(), CV_8U), gray; + + cvtColor(image , gray, COLOR_BGR2GRAY); + medianBlur(gray, gray, 3); // blur will enhance edge detection + vector > contours; + + int thresholdLevels[] = {10, 30, 50, 70}; + for(int thresholdLevel : thresholdLevels) { + Canny(gray, gray0, thresholdLevel, thresholdLevel*3, 3); + + dilate(gray0, gray0, Mat(), Point(-1, -1)); + + findContours(gray0, contours, CV_RETR_LIST, CV_CHAIN_APPROX_SIMPLE); + + vector approx; + for (const auto & contour : contours) { + approxPolyDP(Mat(contour), approx, arcLength(Mat(contour), true) * 0.02, true); + + if (approx.size() == 4 && fabs(contourArea(Mat(approx))) > 1000 && + isContourConvex(Mat(approx))) { + double maxCosine = 0; + + for (int j = 2; j < 5; j++) { + double cosine = fabs(get_cosine_angle_between_vectors(approx[j % 4], approx[j - 2], approx[j - 1])); + maxCosine = MAX(maxCosine, cosine); + } + + if (maxCosine < 0.3) { + squares.push_back(approx); + usedThresholdLevel.push_back(thresholdLevel); + } + } + } + } + + return squares; +} diff --git a/packages/paperless_document_scanner/ios/Classes/edge_detector.hpp b/packages/paperless_document_scanner/ios/Classes/edge_detector.hpp new file mode 100644 index 0000000..916df95 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/edge_detector.hpp @@ -0,0 +1,17 @@ +#include + +using namespace cv; +using namespace std; + + +class EdgeDetector { + public: + static vector detect_edges( Mat& image); + static Mat debug_squares( Mat image ); + + private: + static double get_cosine_angle_between_vectors( cv::Point pt1, cv::Point pt2, cv::Point pt0 ); + static vector > find_squares(Mat& image); + static float get_width(vector& square); + static float get_height(vector& square); +}; diff --git a/packages/paperless_document_scanner/ios/Classes/image_processor.cpp b/packages/paperless_document_scanner/ios/Classes/image_processor.cpp new file mode 100644 index 0000000..b98a717 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/image_processor.cpp @@ -0,0 +1,51 @@ +#include "image_processor.hpp" +#include + +using namespace cv; + +Point2f computePoint(int p1, int p2) +{ + Point2f pt; + pt.x = p1; + pt.y = p2; + return pt; +} + +Mat ImageProcessor::process_image(Mat img, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4) +{ + cvtColor(img, img, COLOR_BGR2GRAY); + Mat dst = ImageProcessor::crop_and_transform(img, x1, y1, x2, y2, x3, y3, x4, y4); + adaptiveThreshold(dst, dst, 255, cv::ADAPTIVE_THRESH_MEAN_C, cv::THRESH_BINARY, 53, 10); + + return dst; +} + +Mat ImageProcessor::crop_and_transform(Mat img, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4) +{ + float w1 = sqrt(pow(x4 - x3, 2) + pow(x4 - x3, 2)); + float w2 = sqrt(pow(x2 - x1, 2) + pow(x2 - x1, 2)); + float h1 = sqrt(pow(y2 - y4, 2) + pow(y2 - y4, 2)); + float h2 = sqrt(pow(y1 - y3, 2) + pow(y1 - y3, 2)); + + float maxWidth = (w1 < w2) ? w1 : w2; + float maxHeight = (h1 < h2) ? h1 : h2; + + Mat dst = Mat::zeros(maxHeight, maxWidth, CV_8UC1); + + vector dst_pts; + vector img_pts; + dst_pts.push_back(Point(0, 0)); + dst_pts.push_back(Point(maxWidth - 1, 0)); + dst_pts.push_back(Point(0, maxHeight - 1)); + dst_pts.push_back(Point(maxWidth - 1, maxHeight - 1)); + + img_pts.push_back(computePoint(x1, y1)); + img_pts.push_back(computePoint(x2, y2)); + img_pts.push_back(computePoint(x3, y3)); + img_pts.push_back(computePoint(x4, y4)); + + Mat transformation_matrix = getPerspectiveTransform(img_pts, dst_pts); + warpPerspective(img, dst, transformation_matrix, dst.size()); + + return dst; +} diff --git a/packages/paperless_document_scanner/ios/Classes/image_processor.hpp b/packages/paperless_document_scanner/ios/Classes/image_processor.hpp new file mode 100644 index 0000000..40f0a62 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/image_processor.hpp @@ -0,0 +1,13 @@ +#include + +using namespace cv; +using namespace std; + + +class ImageProcessor { + public: + static Mat process_image(Mat img, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4); + + private: + static Mat crop_and_transform(Mat img, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4); +}; diff --git a/packages/paperless_document_scanner/ios/Classes/native_edge_detection.cpp b/packages/paperless_document_scanner/ios/Classes/native_edge_detection.cpp new file mode 100644 index 0000000..6ef8154 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/native_edge_detection.cpp @@ -0,0 +1,130 @@ +#include "native_edge_detection.hpp" +#include "edge_detector.hpp" +#include "image_processor.hpp" +#include "conversion_utils.hpp" +#include +#include + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) struct Coordinate *create_coordinate(double x, double y) +{ + struct Coordinate *coordinate = (struct Coordinate *)malloc(sizeof(struct Coordinate)); + coordinate->x = x; + coordinate->y = y; + return coordinate; +} + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) struct DetectionResult *create_detection_result( + Coordinate *topLeft, + Coordinate *topRight, + Coordinate *bottomLeft, + Coordinate *bottomRight) +{ + struct DetectionResult *detectionResult = (struct DetectionResult *)malloc(sizeof(struct DetectionResult)); + detectionResult->topLeft = topLeft; + detectionResult->topRight = topRight; + detectionResult->bottomLeft = bottomLeft; + detectionResult->bottomRight = bottomRight; + return detectionResult; +} + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) struct DetectionResult *detect_edges_from_file(char *str) +{ + struct DetectionResult *coordinate = (struct DetectionResult *)malloc(sizeof(struct DetectionResult)); + cv::Mat mat = cv::imread(str); + + if (mat.size().width == 0 || mat.size().height == 0) + { + return create_detection_result( + create_coordinate(0, 0), + create_coordinate(1, 0), + create_coordinate(0, 1), + create_coordinate(1, 1)); + } + + vector points = EdgeDetector::detect_edges(mat); + + return create_detection_result( + create_coordinate((double)points[0].x / mat.size().width, (double)points[0].y / mat.size().height), + create_coordinate((double)points[1].x / mat.size().width, (double)points[1].y / mat.size().height), + create_coordinate((double)points[2].x / mat.size().width, (double)points[2].y / mat.size().height), + create_coordinate((double)points[3].x / mat.size().width, (double)points[3].y / mat.size().height)); +} + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) struct DetectionResult *detect_edges(uint8_t *bytes, int byteCount) +{ + struct DetectionResult *coordinate = (struct DetectionResult *)malloc(sizeof(struct DetectionResult)); + Mat mat = ConversionUtils::bytearray_to_matrix(bytes, byteCount); + + if (mat.size().width == 0 || mat.size().height == 0) + { + return create_detection_result( + create_coordinate(0, 0), + create_coordinate(1, 0), + create_coordinate(0, 1), + create_coordinate(1, 1)); + } + + vector points = EdgeDetector::detect_edges(mat); + + return create_detection_result( + create_coordinate((double)points[0].x / mat.size().width, (double)points[0].y / mat.size().height), + create_coordinate((double)points[1].x / mat.size().width, (double)points[1].y / mat.size().height), + create_coordinate((double)points[2].x / mat.size().width, (double)points[2].y / mat.size().height), + create_coordinate((double)points[3].x / mat.size().width, (double)points[3].y / mat.size().height)); +} + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) bool process_image_from_file( + char *path, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY) +{ + cv::Mat mat = cv::imread(path); + + cv::Mat resizedMat = ImageProcessor::process_image( + mat, + topLeftX * mat.size().width, + topLeftY * mat.size().height, + topRightX * mat.size().width, + topRightY * mat.size().height, + bottomLeftX * mat.size().width, + bottomLeftY * mat.size().height, + bottomRightX * mat.size().width, + bottomRightY * mat.size().height); + + return cv::imwrite(path, resizedMat); +} + +extern "C" __attribute__((visibility("default"))) __attribute__((used)) +uint8_t * +process_image( + uint8_t *bytes, + int byteCount, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY) +{ + cv::Mat mat = ConversionUtils::bytearray_to_matrix(bytes, byteCount); + cv::Mat resizedMat = ImageProcessor::process_image( + mat, + topLeftX * mat.size().width, + topLeftY * mat.size().height, + topRightX * mat.size().width, + topRightY * mat.size().height, + bottomLeftX * mat.size().width, + bottomLeftY * mat.size().height, + bottomRightX * mat.size().width, + bottomRightY * mat.size().height); + + return ConversionUtils::matrix_to_bytearray(resizedMat); +} \ No newline at end of file diff --git a/packages/paperless_document_scanner/ios/Classes/native_edge_detection.hpp b/packages/paperless_document_scanner/ios/Classes/native_edge_detection.hpp new file mode 100644 index 0000000..cdcb654 --- /dev/null +++ b/packages/paperless_document_scanner/ios/Classes/native_edge_detection.hpp @@ -0,0 +1,47 @@ +#include +struct Coordinate +{ + double x; + double y; +}; + +struct DetectionResult +{ + Coordinate *topLeft; + Coordinate *topRight; + Coordinate *bottomLeft; + Coordinate *bottomRight; +}; + +extern "C" struct ProcessingInput +{ + char *path; + DetectionResult detectionResult; +}; + +extern "C" struct DetectionResult *detect_edges_from_file(char *str); + +extern "C" struct DetectionResult *detect_edges(uint8_t *bytes, int byteCount); + +extern "C" uint8_t *process_image( + uint8_t *bytes, + int byteCount, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY); + +extern "C" bool process_image_from_file( + char *path, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY); \ No newline at end of file diff --git a/packages/paperless_document_scanner/ios/paperless_document_scanner.podspec b/packages/paperless_document_scanner/ios/paperless_document_scanner.podspec new file mode 100644 index 0000000..83a17b7 --- /dev/null +++ b/packages/paperless_document_scanner/ios/paperless_document_scanner.podspec @@ -0,0 +1,29 @@ +# +# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html. +# Run `pod lib lint paperless_document_scanner.podspec` to validate before publishing. +# +Pod::Spec.new do |s| + s.name = 'paperless_document_scanner' + s.version = '0.0.1' + s.summary = 'A new Flutter plugin project.' + s.description = <<-DESC +A new Flutter plugin project. + DESC + s.homepage = 'http://example.com' + s.license = { :file => '../LICENSE' } + s.author = { 'Your Company' => 'email@example.com' } + s.source = { :path => '.' } + s.source_files = 'Classes/**/*.{swift,c,m,h,mm,cpp,plist}' + s.dependency 'Flutter' + s.platform = :ios, '9.0' + + # Flutter.framework does not contain a i386 slice. + s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' } + s.swift_version = '5.0' + + s.preserve_paths = 'opencv2.framework' + s.xcconfig = { 'OTHER_LDFLAGS' => '-framework opencv2' } + s.vendored_frameworks = 'opencv2.framework' + s.frameworks = 'AVFoundation' + s.library = 'c++' +end diff --git a/packages/paperless_document_scanner/lib/modules/edge_detection.dart b/packages/paperless_document_scanner/lib/modules/edge_detection.dart new file mode 100644 index 0000000..9dfe8d2 --- /dev/null +++ b/packages/paperless_document_scanner/lib/modules/edge_detection.dart @@ -0,0 +1,87 @@ +import 'dart:ffi'; +import 'dart:io'; +import 'dart:typed_data'; +import 'dart:ui'; + +import 'package:ffi/ffi.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +final DynamicLibrary _nativeInteropLib = Platform.isAndroid + ? DynamicLibrary.open("libnative_edge_detection.so") + : DynamicLibrary.process(); + +class EdgeDetection { + static Future detectEdgesFromFile(String path) async { + final detectEdges = _nativeInteropLib + .lookup>( + "detect_edges_from_file") + .asFunction<_dart_detect_edges_from_file>(); + + NativeEdgeDetectionResult detectionResult = + detectEdges(path.toNativeUtf8()).ref; + + return EdgeDetectionResult( + topLeft: Offset( + detectionResult.topLeft.ref.x, detectionResult.topLeft.ref.y), + topRight: Offset( + detectionResult.topRight.ref.x, detectionResult.topRight.ref.y), + bottomLeft: Offset( + detectionResult.bottomLeft.ref.x, detectionResult.bottomLeft.ref.y), + bottomRight: Offset(detectionResult.bottomRight.ref.x, + detectionResult.bottomRight.ref.y)); + } + + static Future detectEdges(Uint8List bytes) async { + final detectEdges = _nativeInteropLib + .lookup>("detect_edges") + .asFunction<_dart_detect_edges>(); + + Pointer imgBuffer = malloc.allocate(bytes.lengthInBytes); + Uint8List buffer = imgBuffer.asTypedList(bytes.lengthInBytes); + buffer.setAll(0, bytes); + + NativeEdgeDetectionResult detectionResult = detectEdges( + imgBuffer, + buffer.lengthInBytes, + ).ref; + + final result = EdgeDetectionResult( + topLeft: Offset( + detectionResult.topLeft.ref.x, + detectionResult.topLeft.ref.y, + ), + topRight: Offset( + detectionResult.topRight.ref.x, + detectionResult.topRight.ref.y, + ), + bottomLeft: Offset( + detectionResult.bottomLeft.ref.x, + detectionResult.bottomLeft.ref.y, + ), + bottomRight: Offset( + detectionResult.bottomRight.ref.x, + detectionResult.bottomRight.ref.y, + ), + ); + return result; + } +} + +typedef _c_detect_edges_from_file = Pointer Function( + Pointer imagePath, +); + +typedef _c_detect_edges = Pointer Function( + Pointer bytes, + Int32 byteSize, +); + +typedef _dart_detect_edges_from_file = Pointer + Function( + Pointer imagePath, +); + +typedef _dart_detect_edges = Pointer Function( + Pointer bytes, + int byteSize, +); diff --git a/packages/paperless_document_scanner/lib/modules/image_processing.dart b/packages/paperless_document_scanner/lib/modules/image_processing.dart new file mode 100644 index 0000000..893ca9d --- /dev/null +++ b/packages/paperless_document_scanner/lib/modules/image_processing.dart @@ -0,0 +1,112 @@ +import 'dart:ffi'; +import 'dart:io'; +import 'dart:typed_data'; + +import 'package:ffi/ffi.dart'; +import 'package:paperless_document_scanner/types/edge_detection_result.dart'; + +final DynamicLibrary _nativeInteropLib = Platform.isAndroid + ? DynamicLibrary.open("libnative_edge_detection.so") + : DynamicLibrary.process(); + +class ImageProcessing { + static Future processImageFromFile( + String path, + EdgeDetectionResult result, + ) async { + final processImage = _nativeInteropLib + .lookup>( + "process_image_from_file") + .asFunction<_dart_process_image_from_file>(); + + return processImage( + path.toNativeUtf8(), + result.topLeft.dx, + result.topLeft.dy, + result.topRight.dx, + result.topRight.dy, + result.bottomLeft.dx, + result.bottomLeft.dy, + result.bottomRight.dx, + result.bottomRight.dy, + ) == + 1; + } + + static Future processImage( + Uint8List bytes, + EdgeDetectionResult result, + ) async { + final processImage = _nativeInteropLib + .lookup>("process_image") + .asFunction<_dart_process_image>(); + + final imgBuffer = malloc.allocate(bytes.lengthInBytes); + Uint8List buffer = imgBuffer.asTypedList(bytes.lengthInBytes); + buffer.setAll(0, bytes); + + return processImage( + imgBuffer, + bytes.lengthInBytes, + result.topLeft.dx, + result.topLeft.dy, + result.topRight.dx, + result.topRight.dy, + result.bottomLeft.dx, + result.bottomLeft.dy, + result.bottomRight.dx, + result.bottomRight.dy, + ) == + 1; + } +} + +typedef _c_process_image_from_file = Int8 Function( + Pointer imagePath, + Double topLeftX, + Double topLeftY, + Double topRightX, + Double topRightY, + Double bottomLeftX, + Double bottomLeftY, + Double bottomRightX, + Double bottomRightY, +); + +typedef _c_process_image = Int8 Function( + Pointer imagePath, + Int32 byteSize, + Double topLeftX, + Double topLeftY, + Double topRightX, + Double topRightY, + Double bottomLeftX, + Double bottomLeftY, + Double bottomRightX, + Double bottomRightY, +); + +typedef _dart_process_image_from_file = int Function( + Pointer imagePath, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY, +); + +typedef _dart_process_image = int Function( + Pointer imagePath, + int byteSize, + double topLeftX, + double topLeftY, + double topRightX, + double topRightY, + double bottomLeftX, + double bottomLeftY, + double bottomRightX, + double bottomRightY, +); diff --git a/packages/paperless_document_scanner/lib/paperless_document_scanner.dart b/packages/paperless_document_scanner/lib/paperless_document_scanner.dart new file mode 100644 index 0000000..4add868 --- /dev/null +++ b/packages/paperless_document_scanner/lib/paperless_document_scanner.dart @@ -0,0 +1,2 @@ +export 'modules/edge_detection.dart'; +export 'modules/image_processing.dart'; diff --git a/packages/paperless_document_scanner/lib/types/edge_detection_result.dart b/packages/paperless_document_scanner/lib/types/edge_detection_result.dart new file mode 100644 index 0000000..bd9adb9 --- /dev/null +++ b/packages/paperless_document_scanner/lib/types/edge_detection_result.dart @@ -0,0 +1,49 @@ +import 'dart:ui'; + +import 'package:ffi/ffi.dart'; +import 'dart:ffi'; + +class Coordinate extends Struct { + @Double() + external double x; + + @Double() + external double y; + + factory Coordinate.allocate(double x, double y) => malloc().ref + ..x = x + ..y = y; +} + +class NativeEdgeDetectionResult extends Struct { + external Pointer topLeft; + external Pointer topRight; + external Pointer bottomLeft; + external Pointer bottomRight; + + factory NativeEdgeDetectionResult.allocate( + Pointer topLeft, + Pointer topRight, + Pointer bottomLeft, + Pointer bottomRight, + ) => + malloc().ref + ..topLeft = topLeft + ..topRight = topRight + ..bottomLeft = bottomLeft + ..bottomRight = bottomRight; +} + +class EdgeDetectionResult { + final Offset topLeft; + final Offset topRight; + final Offset bottomLeft; + final Offset bottomRight; + + EdgeDetectionResult({ + required this.topLeft, + required this.topRight, + required this.bottomLeft, + required this.bottomRight, + }); +} diff --git a/packages/paperless_document_scanner/pubspec.yaml b/packages/paperless_document_scanner/pubspec.yaml new file mode 100644 index 0000000..2debf35 --- /dev/null +++ b/packages/paperless_document_scanner/pubspec.yaml @@ -0,0 +1,73 @@ +name: paperless_document_scanner +description: A new Flutter plugin project. +version: 0.0.1 + + +environment: + sdk: '>=2.19.2 <3.0.0' + flutter: ">=2.5.0" + +dependencies: + ffi: ^2.0.1 + flutter: + sdk: flutter + plugin_platform_interface: ^2.0.2 + +dev_dependencies: + flutter_test: + sdk: flutter + flutter_lints: ^2.0.0 + +# For information on the generic Dart part of this file, see the +# following page: https://dart.dev/tools/pub/pubspec + +# The following section is specific to Flutter packages. +flutter: + # This section identifies this Flutter project as a plugin project. + # The 'pluginClass' specifies the class (in Java, Kotlin, Swift, Objective-C, etc.) + # which should be registered in the plugin registry. This is required for + # using method channels. + # The Android 'package' specifies package in which the registered class is. + # This is required for using method channels on Android. + # The 'ffiPlugin' specifies that native code should be built and bundled. + # This is required for using `dart:ffi`. + # All these are used by the tooling to maintain consistency when + # adding or updating assets for this project. + plugin: + platforms: + android: + package: de.astubenbord.paperless_document_scanner + pluginClass: PaperlessDocumentScannerPlugin + ios: + pluginClass: PaperlessDocumentScannerPlugin + + # To add assets to your plugin package, add an assets section, like this: + # assets: + # - images/a_dot_burr.jpeg + # - images/a_dot_ham.jpeg + # + # For details regarding assets in packages, see + # https://flutter.dev/assets-and-images/#from-packages + # + # An image asset can refer to one or more resolution-specific "variants", see + # https://flutter.dev/assets-and-images/#resolution-aware + + # To add custom fonts to your plugin package, add a fonts section here, + # in this "flutter" section. Each entry in this list should have a + # "family" key with the font family name, and a "fonts" key with a + # list giving the asset and other descriptors for the font. For + # example: + # fonts: + # - family: Schyler + # fonts: + # - asset: fonts/Schyler-Regular.ttf + # - asset: fonts/Schyler-Italic.ttf + # style: italic + # - family: Trajan Pro + # fonts: + # - asset: fonts/TrajanPro.ttf + # - asset: fonts/TrajanPro_Bold.ttf + # weight: 700 + # + # For details regarding fonts in packages, see + # https://flutter.dev/custom-fonts/#from-packages