diff --git a/dart/freeform-gradient/.envrc b/dart/freeform-gradient/.envrc
new file mode 100644
index 0000000..1d953f4
--- /dev/null
+++ b/dart/freeform-gradient/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/dart/freeform-gradient/.gitignore b/dart/freeform-gradient/.gitignore
new file mode 100644
index 0000000..ae1f183
--- /dev/null
+++ b/dart/freeform-gradient/.gitignore
@@ -0,0 +1,37 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# 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/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
diff --git a/dart/freeform-gradient/.metadata b/dart/freeform-gradient/.metadata
new file mode 100644
index 0000000..361e1e4
--- /dev/null
+++ b/dart/freeform-gradient/.metadata
@@ -0,0 +1,10 @@
+# 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 and should not be manually edited.
+
+version:
+ revision: 18cd7a3601bcffb36fdf2f679f763b5e827c2e8e
+ channel: beta
+
+project_type: app
diff --git a/dart/freeform-gradient/README.md b/dart/freeform-gradient/README.md
new file mode 100644
index 0000000..0125478
--- /dev/null
+++ b/dart/freeform-gradient/README.md
@@ -0,0 +1,25 @@
+# Flutter freeform gradient
+
+This is a demonstration project to show usage of Flutter with Nix.
+
+## Getting Started
+
+Enter in the `nix-shell`:
+
+```sh
+nix-shell
+```
+
+After this, you can either build this project with:
+
+```sh
+flutter build apk
+```
+
+Or run it:
+
+```sh
+flutter run
+```
+
+If you have any issue, you can run `flutter doctor` to get a diagnostic and potential solution to fix your issues.
diff --git a/dart/freeform-gradient/android/.gitignore b/dart/freeform-gradient/android/.gitignore
new file mode 100644
index 0000000..bc2100d
--- /dev/null
+++ b/dart/freeform-gradient/android/.gitignore
@@ -0,0 +1,7 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
diff --git a/dart/freeform-gradient/android/app/build.gradle b/dart/freeform-gradient/android/app/build.gradle
new file mode 100644
index 0000000..71fe048
--- /dev/null
+++ b/dart/freeform-gradient/android/app/build.gradle
@@ -0,0 +1,67 @@
+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: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+ compileSdkVersion 28
+
+ sourceSets {
+ main.java.srcDirs += 'src/main/kotlin'
+ }
+
+ lintOptions {
+ disable 'InvalidPackage'
+ }
+
+ defaultConfig {
+ // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+ applicationId "com.example.hello_world"
+ minSdkVersion 16
+ targetSdkVersion 28
+ versionCode flutterVersionCode.toInteger()
+ versionName flutterVersionName
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ // TODO: Add your own signing config for the release build.
+ // Signing with the debug keys for now, so `flutter run --release` works.
+ signingConfig signingConfigs.debug
+ }
+ }
+}
+
+flutter {
+ source '../..'
+}
+
+dependencies {
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'androidx.test:runner:1.1.1'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}
diff --git a/dart/freeform-gradient/android/app/src/debug/AndroidManifest.xml b/dart/freeform-gradient/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..9b3ab4d
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,7 @@
+
+
+
+
diff --git a/dart/freeform-gradient/android/app/src/main/AndroidManifest.xml b/dart/freeform-gradient/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..fc01d6a
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/dart/freeform-gradient/android/app/src/main/kotlin/com/example/hello_world/MainActivity.kt b/dart/freeform-gradient/android/app/src/main/kotlin/com/example/hello_world/MainActivity.kt
new file mode 100644
index 0000000..3495ced
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/main/kotlin/com/example/hello_world/MainActivity.kt
@@ -0,0 +1,12 @@
+package com.example.hello_world
+
+import androidx.annotation.NonNull;
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugins.GeneratedPluginRegistrant
+
+class MainActivity: FlutterActivity() {
+ override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+ GeneratedPluginRegistrant.registerWith(flutterEngine);
+ }
+}
diff --git a/dart/freeform-gradient/android/app/src/main/res/drawable/launch_background.xml b/dart/freeform-gradient/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..304732f
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
diff --git a/dart/freeform-gradient/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/dart/freeform-gradient/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..db77bb4
Binary files /dev/null and b/dart/freeform-gradient/android/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/dart/freeform-gradient/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/dart/freeform-gradient/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..17987b7
Binary files /dev/null and b/dart/freeform-gradient/android/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/dart/freeform-gradient/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/dart/freeform-gradient/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..09d4391
Binary files /dev/null and b/dart/freeform-gradient/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/dart/freeform-gradient/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/dart/freeform-gradient/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d5f1c8d
Binary files /dev/null and b/dart/freeform-gradient/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/dart/freeform-gradient/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/dart/freeform-gradient/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4d6372e
Binary files /dev/null and b/dart/freeform-gradient/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/dart/freeform-gradient/android/app/src/main/res/values/styles.xml b/dart/freeform-gradient/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..00fa441
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,8 @@
+
+
+
+
diff --git a/dart/freeform-gradient/android/app/src/profile/AndroidManifest.xml b/dart/freeform-gradient/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..9b3ab4d
--- /dev/null
+++ b/dart/freeform-gradient/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,7 @@
+
+
+
+
diff --git a/dart/freeform-gradient/android/build.gradle b/dart/freeform-gradient/android/build.gradle
new file mode 100644
index 0000000..3100ad2
--- /dev/null
+++ b/dart/freeform-gradient/android/build.gradle
@@ -0,0 +1,31 @@
+buildscript {
+ ext.kotlin_version = '1.3.50'
+ repositories {
+ google()
+ jcenter()
+ }
+
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.5.0'
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+ }
+}
+
+allprojects {
+ repositories {
+ google()
+ jcenter()
+ }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+ project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+ project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
diff --git a/dart/freeform-gradient/android/gradle.properties b/dart/freeform-gradient/android/gradle.properties
new file mode 100644
index 0000000..38c8d45
--- /dev/null
+++ b/dart/freeform-gradient/android/gradle.properties
@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true
diff --git a/dart/freeform-gradient/android/gradle/wrapper/gradle-wrapper.properties b/dart/freeform-gradient/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..da44bc1
--- /dev/null
+++ b/dart/freeform-gradient/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
diff --git a/dart/freeform-gradient/android/settings.gradle b/dart/freeform-gradient/android/settings.gradle
new file mode 100644
index 0000000..5a2f14f
--- /dev/null
+++ b/dart/freeform-gradient/android/settings.gradle
@@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+ pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+ def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+ include ":$name"
+ project(":$name").projectDir = pluginDirectory
+}
diff --git a/dart/freeform-gradient/ios/.gitignore b/dart/freeform-gradient/ios/.gitignore
new file mode 100644
index 0000000..e96ef60
--- /dev/null
+++ b/dart/freeform-gradient/ios/.gitignore
@@ -0,0 +1,32 @@
+*.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/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/dart/freeform-gradient/ios/Flutter/AppFrameworkInfo.plist b/dart/freeform-gradient/ios/Flutter/AppFrameworkInfo.plist
new file mode 100644
index 0000000..6b4c0f7
--- /dev/null
+++ b/dart/freeform-gradient/ios/Flutter/AppFrameworkInfo.plist
@@ -0,0 +1,26 @@
+
+
+
+
+ CFBundleDevelopmentRegion
+ $(DEVELOPMENT_LANGUAGE)
+ CFBundleExecutable
+ App
+ CFBundleIdentifier
+ io.flutter.flutter.app
+ CFBundleInfoDictionaryVersion
+ 6.0
+ CFBundleName
+ App
+ CFBundlePackageType
+ FMWK
+ CFBundleShortVersionString
+ 1.0
+ CFBundleSignature
+ ????
+ CFBundleVersion
+ 1.0
+ MinimumOSVersion
+ 8.0
+
+
diff --git a/dart/freeform-gradient/ios/Flutter/Debug.xcconfig b/dart/freeform-gradient/ios/Flutter/Debug.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/dart/freeform-gradient/ios/Flutter/Debug.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/dart/freeform-gradient/ios/Flutter/Release.xcconfig b/dart/freeform-gradient/ios/Flutter/Release.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/dart/freeform-gradient/ios/Flutter/Release.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/dart/freeform-gradient/ios/Runner.xcodeproj/project.pbxproj b/dart/freeform-gradient/ios/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..b157877
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,518 @@
+// !$*UTF8*$!
+{
+ archiveVersion = 1;
+ classes = {
+ };
+ objectVersion = 46;
+ objects = {
+
+/* Begin PBXBuildFile section */
+ 1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+ 3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+ 3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
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+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
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+ isa = PBXCopyFilesBuildPhase;
+ buildActionMask = 2147483647;
+ dstPath = "";
+ dstSubfolderSpec = 10;
+ files = (
+ 3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */,
+ 9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */,
+ );
+ name = "Embed Frameworks";
+ runOnlyForDeploymentPostprocessing = 0;
+ };
+/* End PBXCopyFilesBuildPhase section */
+
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+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
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+ files = (
+ 9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */,
+ 3B80C3941E831B6300D905FE /* App.framework in Frameworks */,
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ };
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+ 9740EEB11CF90186004384FC /* Flutter */ = {
+ isa = PBXGroup;
+ children = (
+ 3B80C3931E831B6300D905FE /* App.framework */,
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+ 9740EEB21CF90195004384FC /* Debug.xcconfig */,
+ 7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+ 9740EEB31CF90195004384FC /* Generated.xcconfig */,
+ );
+ name = Flutter;
+ sourceTree = "";
+ };
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+ 97C146EF1CF9000F007C117D /* Products */,
+ );
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+ 74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+ 74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
+ );
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+/* End PBXGroup section */
+
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+ isa = PBXNativeTarget;
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diff --git a/dart/freeform-gradient/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/dart/freeform-gradient/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+
+
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dart/freeform-gradient/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..a28140c
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,91 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner.xcworkspace/contents.xcworkspacedata b/dart/freeform-gradient/ios/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+
+
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner/AppDelegate.swift b/dart/freeform-gradient/ios/Runner/AppDelegate.swift
new file mode 100644
index 0000000..70693e4
--- /dev/null
+++ b/dart/freeform-gradient/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/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d36b1fa
--- /dev/null
+++ b/dart/freeform-gradient/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",
+ "scale" : "3x"
+ },
+ {
+ "size" : "29x29",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-29x29@1x.png",
+ "scale" : "1x"
+ },
+ {
+ "size" : "29x29",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-29x29@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "29x29",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-29x29@3x.png",
+ "scale" : "3x"
+ },
+ {
+ "size" : "40x40",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-40x40@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "40x40",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-40x40@3x.png",
+ "scale" : "3x"
+ },
+ {
+ "size" : "60x60",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-60x60@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "60x60",
+ "idiom" : "iphone",
+ "filename" : "Icon-App-60x60@3x.png",
+ "scale" : "3x"
+ },
+ {
+ "size" : "20x20",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-20x20@1x.png",
+ "scale" : "1x"
+ },
+ {
+ "size" : "20x20",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-20x20@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "29x29",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-29x29@1x.png",
+ "scale" : "1x"
+ },
+ {
+ "size" : "29x29",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-29x29@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "40x40",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-40x40@1x.png",
+ "scale" : "1x"
+ },
+ {
+ "size" : "40x40",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-40x40@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "76x76",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-76x76@1x.png",
+ "scale" : "1x"
+ },
+ {
+ "size" : "76x76",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-76x76@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "83.5x83.5",
+ "idiom" : "ipad",
+ "filename" : "Icon-App-83.5x83.5@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "size" : "1024x1024",
+ "idiom" : "ios-marketing",
+ "filename" : "Icon-App-1024x1024@1x.png",
+ "scale" : "1x"
+ }
+ ],
+ "info" : {
+ "version" : 1,
+ "author" : "xcode"
+ }
+}
diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
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index 0000000..dc9ada4
Binary files /dev/null and b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png differ
diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
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index 0000000..28c6bf0
Binary files /dev/null and b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png differ
diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
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index 0000000..2ccbfd9
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diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
new file mode 100644
index 0000000..d0e1f58
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diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+ "images" : [
+ {
+ "idiom" : "universal",
+ "filename" : "LaunchImage.png",
+ "scale" : "1x"
+ },
+ {
+ "idiom" : "universal",
+ "filename" : "LaunchImage@2x.png",
+ "scale" : "2x"
+ },
+ {
+ "idiom" : "universal",
+ "filename" : "LaunchImage@3x.png",
+ "scale" : "3x"
+ }
+ ],
+ "info" : {
+ "version" : 1,
+ "author" : "xcode"
+ }
+}
diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
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diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 0000000..9da19ea
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diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 0000000..9da19ea
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diff --git a/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/dart/freeform-gradient/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/dart/freeform-gradient/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/dart/freeform-gradient/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dart/freeform-gradient/ios/Runner/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..f2e259c
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -0,0 +1,37 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner/Base.lproj/Main.storyboard b/dart/freeform-gradient/ios/Runner/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..f3c2851
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner/Base.lproj/Main.storyboard
@@ -0,0 +1,26 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner/Info.plist b/dart/freeform-gradient/ios/Runner/Info.plist
new file mode 100644
index 0000000..7b54eca
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner/Info.plist
@@ -0,0 +1,45 @@
+
+
+
+
+ CFBundleDevelopmentRegion
+ $(DEVELOPMENT_LANGUAGE)
+ CFBundleExecutable
+ $(EXECUTABLE_NAME)
+ CFBundleIdentifier
+ $(PRODUCT_BUNDLE_IDENTIFIER)
+ CFBundleInfoDictionaryVersion
+ 6.0
+ CFBundleName
+ hello_world
+ 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
+
+
+
diff --git a/dart/freeform-gradient/ios/Runner/Runner-Bridging-Header.h b/dart/freeform-gradient/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..7335fdf
--- /dev/null
+++ b/dart/freeform-gradient/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"
\ No newline at end of file
diff --git a/dart/freeform-gradient/lib/main.dart b/dart/freeform-gradient/lib/main.dart
new file mode 100644
index 0000000..895a0c8
--- /dev/null
+++ b/dart/freeform-gradient/lib/main.dart
@@ -0,0 +1,190 @@
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'dart:ui' as ui;
+import 'dart:async';
+import 'dart:typed_data';
+import 'package:vector_math/vector_math.dart' as vector;
+
+void main() => runApp(Root());
+
+class Root extends StatelessWidget {
+ @override
+ Widget build(BuildContext context) {
+ return MaterialApp(
+ title: 'Custom gradient',
+ theme: ThemeData(
+ primarySwatch: Colors.purple,
+ ),
+ home: FreeformGradient(
+ title: 'Multi point gradient',
+ config: MultiGradientConfig(
+ distanceScaling: 1,
+ blendStrength: 2,
+ points: [
+ MultiGradientPoint(
+ color: Color(0xff6E10AB),
+ intensity: 1,
+ position: vector.Vector2(0.1, 0.09)),
+ MultiGradientPoint(
+ color: Color(0xff041E1C),
+ intensity: 2,
+ position: vector.Vector2(0.84, 0.14)),
+ MultiGradientPoint(
+ color: Color(0xff015BBB),
+ intensity: 1,
+ position: vector.Vector2(0.07, 0.93)),
+ MultiGradientPoint(
+ color: Color(0xff06A599),
+ intensity: 1,
+ position: vector.Vector2(0.9, 0.94))
+ ])),
+ );
+ }
+}
+
+class FreeformGradient extends StatefulWidget {
+ FreeformGradient({Key key, this.title, this.config}) : super(key: key);
+
+ final String title;
+ final MultiGradientConfig config;
+
+ FreeformGradientState createState() => FreeformGradientState();
+}
+
+class MultiGradientPoint {
+ double intensity;
+ vector.Vector4 color;
+ vector.Vector2 position;
+
+ MultiGradientPoint({Color color, this.position, this.intensity = 1}) {
+ this.color = vector.Vector4(color.red.toDouble(), color.green.toDouble(),
+ color.blue.toDouble(), color.opacity);
+ }
+}
+
+class MultiGradientConfig {
+ List points;
+
+ double distanceScaling;
+ double blendStrength;
+ double opacityMultiplier = 1;
+
+ MultiGradientConfig(
+ {this.points,
+ this.distanceScaling = 1,
+ this.blendStrength = 3,
+ this.opacityMultiplier = 1});
+}
+
+class FreeformGradientState extends State {
+ Future gradient;
+
+ @override
+ void didChangeDependencies() {
+ gradient = generateImage(MediaQuery.of(context).size, widget.config);
+ super.didChangeDependencies();
+ }
+
+ @override
+ Widget build(BuildContext context) {
+ return FutureBuilder(
+ future: gradient,
+ builder: (context, snapshot) {
+ if (snapshot.hasData) {
+ MediaQueryData query = MediaQuery.of(context);
+ return CustomPaint(
+ child: Container(
+ width: query.size.width,
+ height: query.size.height,
+ ),
+ painter: ImagePainter(image: snapshot.data));
+ }
+
+ return Text("Generating image");
+ },
+ );
+ }
+}
+
+class ImagePainter extends CustomPainter {
+ ui.Image image;
+
+ ImagePainter({this.image});
+
+ @override
+ void paint(Canvas canvas, Size size) {
+ canvas.drawImage(image, Offset.zero, Paint());
+ }
+
+ @override
+ bool shouldRepaint(ImagePainter oldDelegate) {
+ return oldDelegate.image != image;
+ }
+}
+
+/// Generates a [ui.Image] with certain pixel data
+Future generateImage(Size size, MultiGradientConfig config) async {
+ int width = size.width.ceil();
+ int height = size.height.ceil();
+ var completer = Completer();
+
+ Int32List pixels = Int32List(width * height);
+
+ for (var x = 0; x < width; x++) {
+ for (var y = 0; y < height; y++) {
+ int index = y * width + x;
+ pixels[index] = generatePixel(x, y, size, config);
+ }
+ }
+
+ ui.decodeImageFromPixels(
+ pixels.buffer.asUint8List(),
+ width,
+ height,
+ ui.PixelFormat.bgra8888,
+ (ui.Image img) {
+ completer.complete(img);
+ },
+ );
+
+ return completer.future;
+}
+
+double clamp(double min, double max, double value) {
+ if (value < min) return min;
+ if (value > max) return max;
+
+ return value;
+}
+
+/// Main area of interest, this function will
+/// return color for each particular color on our [ui.Image]
+int generatePixel(int x, int y, Size size, MultiGradientConfig config) {
+ vector.Vector4 color = vector.Vector4(0, 0, 0, 0);
+ double scale = 0;
+
+ var current = vector.Vector2(x.toDouble(), y.toDouble());
+
+ current.divide(vector.Vector2(size.width, size.height));
+
+ for (var i = 0; i < config.points.length; i++) {
+ MultiGradientPoint point = config.points[i];
+
+ var distance = pow(
+ 1 - point.position.distanceTo(current) / config.distanceScaling,
+ config.blendStrength);
+ var multiplier = distance * point.intensity;
+
+ scale += multiplier;
+ color += point.color.scaled(multiplier);
+ }
+
+ if (scale != 0) {
+ color.scale(1 / scale);
+ }
+
+ return Color.fromRGBO(color.x.toInt(), color.y.toInt(), color.z.toInt(),
+ color.w * config.opacityMultiplier)
+ .value;
+}
diff --git a/dart/freeform-gradient/nix/android.nix b/dart/freeform-gradient/nix/android.nix
new file mode 100644
index 0000000..bbdb2dd
--- /dev/null
+++ b/dart/freeform-gradient/nix/android.nix
@@ -0,0 +1,18 @@
+{ androidenv }:
+
+androidenv.composeAndroidPackages {
+ toolsVersion = "25.2.5";
+ platformToolsVersion = "29.0.6";
+ buildToolsVersions = [ "28.0.3" ];
+ includeEmulator = true;
+ emulatorVersion = "30.0.3";
+ platformVersions = [ "28" ];
+ includeSources = false;
+ includeDocs = false;
+ includeSystemImages = true;
+ systemImageTypes = [ "default" ];
+ abiVersions = [ "x86_64" ];
+ includeNDK = false;
+ useGoogleAPIs = false;
+ useGoogleTVAddOns = false;
+}
diff --git a/dart/freeform-gradient/nix/sources.json b/dart/freeform-gradient/nix/sources.json
new file mode 100644
index 0000000..f9ff1a4
--- /dev/null
+++ b/dart/freeform-gradient/nix/sources.json
@@ -0,0 +1,26 @@
+{
+ "niv": {
+ "branch": "master",
+ "description": "Easy dependency management for Nix projects",
+ "homepage": "https://github.com/nmattia/niv",
+ "owner": "nmattia",
+ "repo": "niv",
+ "rev": "9d35b9e4837ab88517210b1701127612c260eccf",
+ "sha256": "0q50xhnm8g2yfyakrh0nly4swyygxpi0a8cb9gp65wcakcgvzvdh",
+ "type": "tarball",
+ "url": "https://github.com/nmattia/niv/archive/9d35b9e4837ab88517210b1701127612c260eccf.tar.gz",
+ "url_template": "https://github.com///archive/.tar.gz"
+ },
+ "nixpkgs": {
+ "branch": "master",
+ "description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
+ "homepage": "https://github.com/NixOS/nixpkgs",
+ "owner": "NixOS",
+ "repo": "nixpkgs",
+ "rev": "7ef527cff856ea7938dba20769a6d59ebc9575e6",
+ "sha256": "0zhvly0b99846x1y3jyva79amf0kyi9c6lwg8l3ghig669kxlwa7",
+ "type": "tarball",
+ "url": "https://github.com/NixOS/nixpkgs/archive/7ef527cff856ea7938dba20769a6d59ebc9575e6.tar.gz",
+ "url_template": "https://github.com///archive/.tar.gz"
+ }
+}
diff --git a/dart/freeform-gradient/nix/sources.nix b/dart/freeform-gradient/nix/sources.nix
new file mode 100644
index 0000000..b796fff
--- /dev/null
+++ b/dart/freeform-gradient/nix/sources.nix
@@ -0,0 +1,171 @@
+# This file has been generated by Niv.
+
+let
+
+ #
+ # The fetchers. fetch_ fetches specs of type .
+ #
+
+ fetch_file = pkgs: name: spec:
+ let
+ name' = sanitizeName name + "-src";
+ in
+ if spec.builtin or true then
+ builtins_fetchurl { inherit (spec) url sha256; name = name'; }
+ else
+ pkgs.fetchurl { inherit (spec) url sha256; name = name'; };
+
+ fetch_tarball = pkgs: name: spec:
+ let
+ name' = sanitizeName name + "-src";
+ in
+ if spec.builtin or true then
+ builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
+ else
+ pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
+
+ fetch_git = name: spec:
+ let
+ ref =
+ if spec ? ref then spec.ref else
+ if spec ? branch then "refs/heads/${spec.branch}" else
+ if spec ? tag then "refs/tags/${spec.tag}" else
+ abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
+ in
+ builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; };
+
+ fetch_local = spec: spec.path;
+
+ fetch_builtin-tarball = name: throw
+ ''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
+ $ niv modify ${name} -a type=tarball -a builtin=true'';
+
+ fetch_builtin-url = name: throw
+ ''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
+ $ niv modify ${name} -a type=file -a builtin=true'';
+
+ #
+ # Various helpers
+ #
+
+ # https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695
+ sanitizeName = name:
+ (
+ concatMapStrings (s: if builtins.isList s then "-" else s)
+ (
+ builtins.split "[^[:alnum:]+._?=-]+"
+ ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)
+ )
+ );
+
+ # The set of packages used when specs are fetched using non-builtins.
+ mkPkgs = sources: system:
+ let
+ sourcesNixpkgs =
+ import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) { inherit system; };
+ hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
+ hasThisAsNixpkgsPath = == ./.;
+ in
+ if builtins.hasAttr "nixpkgs" sources
+ then sourcesNixpkgs
+ else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
+ import {}
+ else
+ abort
+ ''
+ Please specify either (through -I or NIX_PATH=nixpkgs=...) or
+ add a package called "nixpkgs" to your sources.json.
+ '';
+
+ # The actual fetching function.
+ fetch = pkgs: name: spec:
+
+ if ! builtins.hasAttr "type" spec then
+ abort "ERROR: niv spec ${name} does not have a 'type' attribute"
+ else if spec.type == "file" then fetch_file pkgs name spec
+ else if spec.type == "tarball" then fetch_tarball pkgs name spec
+ else if spec.type == "git" then fetch_git name spec
+ else if spec.type == "local" then fetch_local spec
+ else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
+ else if spec.type == "builtin-url" then fetch_builtin-url name
+ else
+ abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
+
+ # If the environment variable NIV_OVERRIDE_${name} is set, then use
+ # the path directly as opposed to the fetched source.
+ replace = name: drv:
+ let
+ saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
+ ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
+ in
+ if ersatz == "" then drv else ersatz;
+
+ # Ports of functions for older nix versions
+
+ # a Nix version of mapAttrs if the built-in doesn't exist
+ mapAttrs = builtins.mapAttrs or (
+ f: set: with builtins;
+ listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
+ );
+
+ # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
+ range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1);
+
+ # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
+ stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
+
+ # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
+ stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
+ concatMapStrings = f: list: concatStrings (map f list);
+ concatStrings = builtins.concatStringsSep "";
+
+ # https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
+ optionalAttrs = cond: as: if cond then as else {};
+
+ # fetchTarball version that is compatible between all the versions of Nix
+ builtins_fetchTarball = { url, name ? null, sha256 }@attrs:
+ let
+ inherit (builtins) lessThan nixVersion fetchTarball;
+ in
+ if lessThan nixVersion "1.12" then
+ fetchTarball ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
+ else
+ fetchTarball attrs;
+
+ # fetchurl version that is compatible between all the versions of Nix
+ builtins_fetchurl = { url, name ? null, sha256 }@attrs:
+ let
+ inherit (builtins) lessThan nixVersion fetchurl;
+ in
+ if lessThan nixVersion "1.12" then
+ fetchurl ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
+ else
+ fetchurl attrs;
+
+ # Create the final "sources" from the config
+ mkSources = config:
+ mapAttrs (
+ name: spec:
+ if builtins.hasAttr "outPath" spec
+ then abort
+ "The values in sources.json should not have an 'outPath' attribute"
+ else
+ spec // { outPath = replace name (fetch config.pkgs name spec); }
+ ) config.sources;
+
+ # The "config" used by the fetchers
+ mkConfig =
+ { sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null
+ , sources ? if isNull sourcesFile then {} else builtins.fromJSON (builtins.readFile sourcesFile)
+ , system ? builtins.currentSystem
+ , pkgs ? mkPkgs sources system
+ }: rec {
+ # The sources, i.e. the attribute set of spec name to spec
+ inherit sources;
+
+ # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
+ inherit pkgs;
+ };
+
+in
+mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); }
diff --git a/dart/freeform-gradient/pubspec.lock b/dart/freeform-gradient/pubspec.lock
new file mode 100644
index 0000000..543838a
--- /dev/null
+++ b/dart/freeform-gradient/pubspec.lock
@@ -0,0 +1,188 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+ archive:
+ dependency: transitive
+ description:
+ name: archive
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.13"
+ args:
+ dependency: transitive
+ description:
+ name: args
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.6.0"
+ async:
+ dependency: transitive
+ description:
+ name: async
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.4.1"
+ boolean_selector:
+ dependency: transitive
+ description:
+ name: boolean_selector
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.0"
+ charcode:
+ dependency: transitive
+ description:
+ name: charcode
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.1.3"
+ collection:
+ dependency: transitive
+ description:
+ name: collection
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.14.12"
+ convert:
+ dependency: transitive
+ description:
+ name: convert
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.1"
+ crypto:
+ dependency: transitive
+ description:
+ name: crypto
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.4"
+ cupertino_icons:
+ dependency: "direct main"
+ description:
+ name: cupertino_icons
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.1.3"
+ flutter:
+ dependency: "direct main"
+ description: flutter
+ source: sdk
+ version: "0.0.0"
+ flutter_test:
+ dependency: "direct dev"
+ description: flutter
+ source: sdk
+ version: "0.0.0"
+ image:
+ dependency: transitive
+ description:
+ name: image
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.12"
+ matcher:
+ dependency: transitive
+ description:
+ name: matcher
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.12.6"
+ meta:
+ dependency: transitive
+ description:
+ name: meta
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.1.8"
+ path:
+ dependency: transitive
+ description:
+ name: path
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.6.4"
+ petitparser:
+ dependency: transitive
+ description:
+ name: petitparser
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.4.0"
+ quiver:
+ dependency: transitive
+ description:
+ name: quiver
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.1.3"
+ sky_engine:
+ dependency: transitive
+ description: flutter
+ source: sdk
+ version: "0.0.99"
+ source_span:
+ dependency: transitive
+ description:
+ name: source_span
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.7.0"
+ stack_trace:
+ dependency: transitive
+ description:
+ name: stack_trace
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.9.3"
+ stream_channel:
+ dependency: transitive
+ description:
+ name: stream_channel
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.0"
+ string_scanner:
+ dependency: transitive
+ description:
+ name: string_scanner
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.0.5"
+ term_glyph:
+ dependency: transitive
+ description:
+ name: term_glyph
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.1.0"
+ test_api:
+ dependency: transitive
+ description:
+ name: test_api
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.2.15"
+ typed_data:
+ dependency: transitive
+ description:
+ name: typed_data
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "1.1.6"
+ vector_math:
+ dependency: transitive
+ description:
+ name: vector_math
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.0.8"
+ xml:
+ dependency: transitive
+ description:
+ name: xml
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "3.6.1"
+sdks:
+ dart: ">=2.6.0 <3.0.0"
diff --git a/dart/freeform-gradient/pubspec.yaml b/dart/freeform-gradient/pubspec.yaml
new file mode 100644
index 0000000..d7e0dea
--- /dev/null
+++ b/dart/freeform-gradient/pubspec.yaml
@@ -0,0 +1,58 @@
+name: hello_world
+description: A new Flutter project.
+
+version: 1.0.0+1
+
+environment:
+ sdk: ">=2.1.0 <3.0.0"
+
+dependencies:
+ flutter:
+ sdk: flutter
+
+ cupertino_icons: ^0.1.2
+
+dev_dependencies:
+ flutter_test:
+ sdk: flutter
+
+# 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.
+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/dart/freeform-gradient/shell.nix b/dart/freeform-gradient/shell.nix
new file mode 100644
index 0000000..b7998f8
--- /dev/null
+++ b/dart/freeform-gradient/shell.nix
@@ -0,0 +1,18 @@
+{ sources ? import ./nix/sources.nix }:
+
+let
+ pkgs = import sources.nixpkgs { config.android_sdk.accept_license = true;};
+ android = pkgs.callPackage ./nix/android.nix { };
+in pkgs.mkShell {
+ buildInputs = with pkgs; [
+ # from pkgs
+ flutter
+ jdk
+ niv
+ #from ./nix/*
+ android.platform-tools ];
+
+ ANDROID_HOME = "${android.androidsdk}/libexec/android-sdk";
+ JAVA_HOME = pkgs.jdk;
+ ANDROID_AVD_HOME = (toString ./.) + "/.android/avd";
+}
diff --git a/dart/freeform-gradient/test/widget_test.dart b/dart/freeform-gradient/test/widget_test.dart
new file mode 100644
index 0000000..5cbb846
--- /dev/null
+++ b/dart/freeform-gradient/test/widget_test.dart
@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:hello_world/main.dart';
+
+void main() {
+ testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+ // Build our app and trigger a frame.
+ await tester.pumpWidget(Root());
+
+ // Verify that our counter starts at 0.
+ expect(find.text('0'), findsOneWidget);
+ expect(find.text('1'), findsNothing);
+
+ // Tap the '+' icon and trigger a frame.
+ await tester.tap(find.byIcon(Icons.add));
+ await tester.pump();
+
+ // Verify that our counter has incremented.
+ expect(find.text('0'), findsNothing);
+ expect(find.text('1'), findsOneWidget);
+ });
+}
diff --git a/dart/freeform-gradient/web/index.html b/dart/freeform-gradient/web/index.html
new file mode 100644
index 0000000..92c3cae
--- /dev/null
+++ b/dart/freeform-gradient/web/index.html
@@ -0,0 +1,10 @@
+
+
+
+
+ hello_world
+
+
+
+
+