的

williamchart/.editorconfig

@@ -0,0 +1,2 @@
+[*.{kt,kts}]
+disabled_rules=import-ordering

williamchart/.gitignore

@@ -0,0 +1,43 @@
+# Windows thumbnail db
+Thumbs.db
+
+# OSX files
+.DS_Store
+
+# built application files
+*.apk
+*.ap_
+
+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Eclipse project files
+.classpath
+.project
+
+# Android Studio
+.idea
+.gradle
+/*/local.properties
+/*/out
+/*/*/build
+build
+/*/*/production
+*.iml
+*.iws
+*.ipr
+*~
+*.swp
+
+/kick

williamchart/Makefile

@@ -0,0 +1,16 @@
+release-bintray: # Make sure to update the release version before releasing
+	./gradlew clean build bintrayUpload
+
+release-play: # Make sure to update the release version before releasing
+	./gradlew publishReleaseApk
+
+check:
+	./gradlew lint
+	./gradlew detekt
+
+test:
+	./gradlew test
+
+stop:
+	./gradlew --stop
+

williamchart/README.md

@@ -0,0 +1,96 @@
+# williamchart ![phone][2]![watch][3]
+
+[![Kotlin Version](https://img.shields.io/badge/kotlin-1.4.10-blue.svg)](https://kotlinlang.org)
+[![API](https://img.shields.io/badge/API-16%2B-brightgreen.svg?style=flat)](https://android-arsenal.com/api?level=16)
+[![CodeFactor](https://www.codefactor.io/repository/github/diogobernardino/williamchart/badge)](https://www.codefactor.io/repository/github/diogobernardino/williamchart)
+
+Williamchart is an Android Library to rapidly implement attractive and insightful charts in android applications.
+
+Note: WilliamChart v3 has been completely re-written from scratch in Kotlin and does not guarantee any API/features compatibility with previous versions. Android development has been evolving quickly, and much has changed since I first started developing williamchart (e.g patterns, testing, tools), so I decided it was time to rewrite it with all these new tools in mind. I intend to keep it as light and modular as possible.
+
+![screenshot][4]
+
+### Gradle 
+
+``` groovy
+// Charts
+implementation 'com.diogobernardino:williamchart:3.10.1'
+
+// Tooltips
+implementation 'com.diogobernardino.williamchart:tooltip-slider:3.10.1'
+implementation 'com.diogobernardino.williamchart:tooltip-points:3.10.1'
+```
+
+If you find this library useful and decide to use it in your projects please drop me a line [@dfbernardino][1], I will be happy to know about it.
+
+### Usage
+
+#### All charts
+
+```xml
+<com.db.williamchart.view.chart_view
+  ...
+  app:chart_labelsColor="color"
+  app:chart_labelsSize="dimension"
+  app:chart_labelsFont="font" 
+/>
+```
+
+#### Line Chart
+
+```xml
+<com.db.williamchart.view.LinechartView
+  ...
+  app:chart_lineColor="color"
+  app:chart_lineThickness="dimension"
+  app:chart_smoothLine=[ "true" | "false" ]
+  app:chart_pointDrawable="drawable" 
+/>
+```
+
+#### Bar Chart
+
+```xml
+<com.db.williamchart.view.BarChartView|HorizontalBarChartView
+  ...
+  app:chart_spacing="dimension"
+  app:chart_barsColor="color"
+  app:chart_barsBackgroundColor="color"
+  app:chart_barsRadius="dimension" 
+/>
+```
+
+#### Donut Chart
+
+```xml
+<com.db.williamchart.view.DonutChartView
+  ...
+  app:chart_donutThickness="dimension"
+  app:chart_donutBackgroundColor="color"
+  app:chart_donutRoundCorners="boolean"
+  app:chart_donutTotal="float"
+/>
+```
+
+
+License
+-------
+
+    Copyright 2019 Diogo Bernardino
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+[1]: https://twitter.com/dfbernardino
+[2]: ./art/phone.png
+[3]: ./art/watch.png
+[4]: ./art/demo_screenshot.png

williamchart/_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-minimal

williamchart/build.gradle

@@ -0,0 +1,40 @@
+buildscript {
+
+    ext {
+        williamchartVersion = "3.10.1"
+        targetSdkVersion = 30
+        minSdkVersion = 16
+        kotlinVersion = "1.4.10"
+    }
+
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.10"
+        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
+    }
+}
+
+plugins {
+    id "io.gitlab.arturbosch.detekt" version "1.0.0"
+    id "com.vanniktech.android.junit.jacoco" version "0.15.0"
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+    apply from: "$rootDir/ktlint.gradle"
+    apply from: "$rootDir/detekt.gradle"
+    apply from: "$rootDir/jacoco.gradle"
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

williamchart/default-detekt-config.yml

@@ -0,0 +1,550 @@
+build:
+  maxIssues: 10
+  weights:
+  # complexity: 2
+  # LongParameterList: 1
+  # style: 1
+  # comments: 1
+
+processors:
+  active: true
+  exclude:
+  # - 'DetektProgressListener'
+  # - 'FunctionCountProcessor'
+  # - 'PropertyCountProcessor'
+  # - 'ClassCountProcessor'
+  # - 'PackageCountProcessor'
+  # - 'KtFileCountProcessor'
+
+console-reports:
+  active: true
+  exclude:
+  #  - 'ProjectStatisticsReport'
+  #  - 'ComplexityReport'
+  #  - 'NotificationReport'
+  #  - 'FindingsReport'
+  #  - 'BuildFailureReport'
+
+comments:
+  active: true
+  excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+  CommentOverPrivateFunction:
+    active: false
+  CommentOverPrivateProperty:
+    active: false
+  EndOfSentenceFormat:
+    active: false
+    endOfSentenceFormat: ([.?!][ \t\n\r\f<])|([.?!:]$)
+  UndocumentedPublicClass:
+    active: false
+    searchInNestedClass: true
+    searchInInnerClass: true
+    searchInInnerObject: true
+    searchInInnerInterface: true
+  UndocumentedPublicFunction:
+    active: false
+
+complexity:
+  active: true
+  ComplexCondition:
+    active: true
+    threshold: 4
+  ComplexInterface:
+    active: false
+    threshold: 10
+    includeStaticDeclarations: false
+  ComplexMethod:
+    active: true
+    threshold: 10
+    ignoreSingleWhenExpression: false
+    ignoreSimpleWhenEntries: false
+  LabeledExpression:
+    active: false
+    ignoredLabels: ""
+  LargeClass:
+    active: true
+    threshold: 600
+  LongMethod:
+    active: true
+    threshold: 60
+  LongParameterList:
+    active: true
+    threshold: 6
+    ignoreDefaultParameters: false
+  MethodOverloading:
+    active: false
+    threshold: 6
+  NestedBlockDepth:
+    active: true
+    threshold: 4
+  StringLiteralDuplication:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    threshold: 3
+    ignoreAnnotation: true
+    excludeStringsWithLessThan5Characters: true
+    ignoreStringsRegex: '$^'
+  TooManyFunctions:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    thresholdInFiles: 11
+    thresholdInClasses: 11
+    thresholdInInterfaces: 11
+    thresholdInObjects: 11
+    thresholdInEnums: 11
+    ignoreDeprecated: false
+    ignorePrivate: false
+    ignoreOverridden: false
+
+empty-blocks:
+  active: true
+  EmptyCatchBlock:
+    active: true
+    allowedExceptionNameRegex: "^(_|(ignore|expected).*)"
+  EmptyClassBlock:
+    active: true
+  EmptyDefaultConstructor:
+    active: true
+  EmptyDoWhileBlock:
+    active: true
+  EmptyElseBlock:
+    active: true
+  EmptyFinallyBlock:
+    active: true
+  EmptyForBlock:
+    active: true
+  EmptyFunctionBlock:
+    active: false
+    ignoreOverriddenFunctions: false
+  EmptyIfBlock:
+    active: true
+  EmptyInitBlock:
+    active: true
+  EmptyKtFile:
+    active: true
+  EmptySecondaryConstructor:
+    active: true
+  EmptyWhenBlock:
+    active: true
+  EmptyWhileBlock:
+    active: true
+
+exceptions:
+  active: true
+  ExceptionRaisedInUnexpectedLocation:
+    active: false
+    methodNames: 'toString,hashCode,equals,finalize'
+  InstanceOfCheckForException:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+  NotImplementedDeclaration:
+    active: false
+  PrintStackTrace:
+    active: false
+  RethrowCaughtException:
+    active: false
+  ReturnFromFinally:
+    active: false
+  SwallowedException:
+    active: false
+    ignoredExceptionTypes: 'InterruptedException,NumberFormatException,ParseException,MalformedURLException'
+    allowedExceptionNameRegex: "^(_|(ignore|expected).*)"
+  ThrowingExceptionFromFinally:
+    active: false
+  ThrowingExceptionInMain:
+    active: false
+  ThrowingExceptionsWithoutMessageOrCause:
+    active: false
+    exceptions: 'IllegalArgumentException,IllegalStateException,IOException'
+  ThrowingNewInstanceOfSameException:
+    active: false
+  TooGenericExceptionCaught:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    exceptionNames:
+      - ArrayIndexOutOfBoundsException
+      - Error
+      - Exception
+      - IllegalMonitorStateException
+      - NullPointerException
+      - IndexOutOfBoundsException
+      - RuntimeException
+      - Throwable
+    allowedExceptionNameRegex: "^(_|(ignore|expected).*)"
+  TooGenericExceptionThrown:
+    active: true
+    exceptionNames:
+      - Error
+      - Exception
+      - Throwable
+      - RuntimeException
+
+formatting:
+  active: true
+  android: false
+  autoCorrect: true
+  AnnotationOnSeparateLine:
+    active: false
+    autoCorrect: true
+  ChainWrapping:
+    active: true
+    autoCorrect: true
+  CommentSpacing:
+    active: true
+    autoCorrect: true
+  Filename:
+    active: true
+  FinalNewline:
+    active: true
+    autoCorrect: true
+  ImportOrdering:
+    active: false
+    autoCorrect: true
+  Indentation:
+    active: false
+    autoCorrect: true
+    indentSize: 4
+    continuationIndentSize: 4
+  MaximumLineLength:
+    active: true
+    maxLineLength: 120
+  ModifierOrdering:
+    active: true
+    autoCorrect: true
+  MultiLineIfElse:
+    active: true
+    autoCorrect: true
+  NoBlankLineBeforeRbrace:
+    active: true
+    autoCorrect: true
+  NoConsecutiveBlankLines:
+    active: true
+    autoCorrect: true
+  NoEmptyClassBody:
+    active: true
+    autoCorrect: true
+  NoLineBreakAfterElse:
+    active: true
+    autoCorrect: true
+  NoLineBreakBeforeAssignment:
+    active: true
+    autoCorrect: true
+  NoMultipleSpaces:
+    active: true
+    autoCorrect: true
+  NoSemicolons:
+    active: true
+    autoCorrect: true
+  NoTrailingSpaces:
+    active: true
+    autoCorrect: true
+  NoUnitReturn:
+    active: true
+    autoCorrect: true
+  NoUnusedImports:
+    active: true
+    autoCorrect: true
+  NoWildcardImports:
+    active: true
+  PackageName:
+    active: true
+    autoCorrect: true
+  ParameterListWrapping:
+    active: true
+    autoCorrect: true
+    indentSize: 4
+  SpacingAroundColon:
+    active: true
+    autoCorrect: true
+  SpacingAroundComma:
+    active: true
+    autoCorrect: true
+  SpacingAroundCurly:
+    active: true
+    autoCorrect: true
+  SpacingAroundDot:
+    active: true
+    autoCorrect: true
+  SpacingAroundKeyword:
+    active: true
+    autoCorrect: true
+  SpacingAroundOperators:
+    active: true
+    autoCorrect: true
+  SpacingAroundParens:
+    active: true
+    autoCorrect: true
+  SpacingAroundRangeOperator:
+    active: true
+    autoCorrect: true
+  StringTemplate:
+    active: true
+    autoCorrect: true
+
+naming:
+  active: true
+  ClassNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    classPattern: '[A-Z$][a-zA-Z0-9$]*'
+  ConstructorParameterNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    parameterPattern: '[a-z][A-Za-z0-9]*'
+    privateParameterPattern: '[a-z][A-Za-z0-9]*'
+    excludeClassPattern: '$^'
+  EnumNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    enumEntryPattern: '^[A-Z][_a-zA-Z0-9]*'
+  ForbiddenClassName:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    forbiddenName: ''
+  FunctionMaxLength:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    maximumFunctionNameLength: 30
+  FunctionMinLength:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    minimumFunctionNameLength: 3
+  FunctionNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    functionPattern: '^([a-z$][a-zA-Z$0-9]*)|(`.*`)$'
+    excludeClassPattern: '$^'
+    ignoreOverridden: true
+  FunctionParameterNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    parameterPattern: '[a-z][A-Za-z0-9]*'
+    excludeClassPattern: '$^'
+    ignoreOverriddenFunctions: true
+  InvalidPackageDeclaration:
+    active: false
+    rootPackage: ''
+  MatchingDeclarationName:
+    active: true
+  MemberNameEqualsClassName:
+    active: false
+    ignoreOverriddenFunction: true
+  ObjectPropertyNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    constantPattern: '[A-Za-z][_A-Za-z0-9]*'
+    propertyPattern: '[A-Za-z][_A-Za-z0-9]*'
+    privatePropertyPattern: '(_)?[A-Za-z][_A-Za-z0-9]*'
+  PackageNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    packagePattern: '^[a-z]+(\.[a-z][A-Za-z0-9]*)*$'
+  TopLevelPropertyNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    constantPattern: '[A-Z][_A-Z0-9]*'
+    propertyPattern: '[A-Za-z][_A-Za-z0-9]*'
+    privatePropertyPattern: '_?[A-Za-z][_A-Za-z0-9]*'
+  VariableMaxLength:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    maximumVariableNameLength: 64
+  VariableMinLength:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    minimumVariableNameLength: 1
+  VariableNaming:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    variablePattern: '[a-z][A-Za-z0-9]*'
+    privateVariablePattern: '(_)?[a-z][A-Za-z0-9]*'
+    excludeClassPattern: '$^'
+    ignoreOverridden: true
+
+performance:
+  active: true
+  ArrayPrimitive:
+    active: false
+  ForEachOnRange:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+  SpreadOperator:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+  UnnecessaryTemporaryInstantiation:
+    active: true
+
+potential-bugs:
+  active: true
+  DuplicateCaseInWhenExpression:
+    active: true
+  EqualsAlwaysReturnsTrueOrFalse:
+    active: false
+  EqualsWithHashCodeExist:
+    active: true
+  ExplicitGarbageCollectionCall:
+    active: true
+  InvalidRange:
+    active: false
+  IteratorHasNextCallsNextMethod:
+    active: false
+  IteratorNotThrowingNoSuchElementException:
+    active: false
+  LateinitUsage:
+    active: false
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    excludeAnnotatedProperties: ""
+    ignoreOnClassesPattern: ""
+  MissingWhenCase:
+    active: false
+  RedundantElseInWhen:
+    active: false
+  UnconditionalJumpStatementInLoop:
+    active: false
+  UnreachableCode:
+    active: true
+  UnsafeCallOnNullableType:
+    active: false
+  UnsafeCast:
+    active: false
+  UselessPostfixExpression:
+    active: false
+  WrongEqualsTypeParameter:
+    active: false
+
+style:
+  active: true
+  CollapsibleIfStatements:
+    active: false
+  DataClassContainsFunctions:
+    active: false
+    conversionFunctionPrefix: 'to'
+  DataClassShouldBeImmutable:
+    active: false
+  EqualsNullCall:
+    active: false
+  EqualsOnSignatureLine:
+    active: false
+  ExplicitItLambdaParameter:
+    active: false
+  ExpressionBodySyntax:
+    active: false
+    includeLineWrapping: false
+  ForbiddenComment:
+    active: true
+    values: 'TODO:,FIXME:,STOPSHIP:'
+  ForbiddenImport:
+    active: false
+    imports: ''
+  ForbiddenVoid:
+    active: false
+    ignoreOverridden: false
+    ignoreUsageInGenerics: false
+  FunctionOnlyReturningConstant:
+    active: false
+    ignoreOverridableFunction: true
+    excludedFunctions: 'describeContents'
+  LibraryCodeMustSpecifyReturnType:
+    active: false
+  LoopWithTooManyJumpStatements:
+    active: false
+    maxJumpCount: 1
+  MagicNumber:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    ignoreNumbers: '-1,0,1,2'
+    ignoreHashCodeFunction: true
+    ignorePropertyDeclaration: false
+    ignoreConstantDeclaration: true
+    ignoreCompanionObjectPropertyDeclaration: true
+    ignoreAnnotation: false
+    ignoreNamedArgument: true
+    ignoreEnums: false
+    ignoreRanges: false
+  MandatoryBracesIfStatements:
+    active: false
+  MaxLineLength:
+    active: true
+    maxLineLength: 120
+    excludePackageStatements: true
+    excludeImportStatements: true
+    excludeCommentStatements: false
+  MayBeConst:
+    active: false
+  ModifierOrder:
+    active: true
+  NestedClassesVisibility:
+    active: false
+  NewLineAtEndOfFile:
+    active: true
+  NoTabs:
+    active: false
+  OptionalAbstractKeyword:
+    active: true
+  OptionalUnit:
+    active: false
+  OptionalWhenBraces:
+    active: false
+  PreferToOverPairSyntax:
+    active: false
+  ProtectedMemberInFinalClass:
+    active: false
+  RedundantVisibilityModifierRule:
+    active: false
+  ReturnCount:
+    active: true
+    max: 2
+    excludedFunctions: "equals"
+    excludeLabeled: false
+    excludeReturnFromLambda: true
+  SafeCast:
+    active: true
+  SerialVersionUIDInSerializableClass:
+    active: false
+  SpacingBetweenPackageAndImports:
+    active: false
+  ThrowsCount:
+    active: true
+    max: 2
+  TrailingWhitespace:
+    active: false
+  UnderscoresInNumericLiterals:
+    active: false
+    acceptableDecimalLength: 5
+  UnnecessaryAbstractClass:
+    active: false
+    excludeAnnotatedClasses: "dagger.Module"
+  UnnecessaryApply:
+    active: false
+  UnnecessaryInheritance:
+    active: false
+  UnnecessaryLet:
+    active: false
+  UnnecessaryParentheses:
+    active: false
+  UntilInsteadOfRangeTo:
+    active: false
+  UnusedImports:
+    active: false
+  UnusedPrivateClass:
+    active: false
+  UnusedPrivateMember:
+    active: false
+    allowedNames: "(_|ignored|expected|serialVersionUID)"
+  UseCheckOrError:
+    active: false
+  UseDataClass:
+    active: false
+    excludeAnnotatedClasses: ""
+  UseRequire:
+    active: false
+  UselessCallOnNotNull:
+    active: false
+  UtilityClassWithPublicConstructor:
+    active: false
+  VarCouldBeVal:
+    active: false
+  WildcardImport:
+    active: true
+    excludes: "**/test/**,**/androidTest/**,**/*.Test.kt,**/*.Spec.kt,**/*.Spek.kt"
+    excludeImports: 'java.util.*,kotlinx.android.synthetic.*'

williamchart/detekt.gradle

@@ -0,0 +1,6 @@
+apply plugin: "io.gitlab.arturbosch.detekt"
+
+detekt {
+    toolVersion = "1.0.0"
+    config = files("${rootDir}/default-detekt-config.yml")
+}

williamchart/docs/README.md

@@ -0,0 +1,83 @@
+[![Kotlin Version](https://img.shields.io/badge/kotlin-1.3.50-blue.svg)](https://kotlinlang.org)
+[![API](https://img.shields.io/badge/API-16%2B-brightgreen.svg?style=flat)](https://android-arsenal.com/api?level=16)
+[![CodeFactor](https://www.codefactor.io/repository/github/diogobernardino/williamchart/badge)](https://www.codefactor.io/repository/github/diogobernardino/williamchart)
+
+Williamchart is an Android Library to rapidly implement attractive and insightful charts in android applications.
+
+### Gradle 
+
+``` groovy
+implementation 'com.diogobernardino:williamchart:3.2.0'
+```
+
+If you find this library useful and decide to use it in your projects please drop me a line [@dfbernardino][1], I will be happy to know about it.
+
+### Usage
+
+#### All charts
+
+```xml
+<com.db.williamchart.view.chart_view
+  ...
+  app:chart_labelsColor="color"
+  app:chart_labelsSize="dimension"
+  app:chart_labelsFont="font" 
+/>
+```
+
+#### Line Chart
+
+```xml
+<com.db.williamchart.view.LinechartView
+  ...
+  app:chart_lineColor="color"
+  app:chart_lineThickness="dimension"
+  app:chart_smoothLine=[ "true" | "false" ]
+  app:chart_pointDrawable="drawable" 
+/>
+```
+
+#### Bar Chart
+
+```xml
+<com.db.williamchart.view.BarChartView|HorizontalBarChartView
+  ...
+  app:chart_spacing="dimension"
+  app:chart_barsColor="color"
+  app:chart_barsBackgroundColor="color"
+  app:chart_barsRadius="dimension" 
+/>
+```
+
+#### Donut Chart
+
+```xml
+<com.db.williamchart.view.DonutChartView
+  ...
+  app:chart_donutThickness="dimension"
+  app:chart_donutColor="color"
+  app:chart_donutBackgroundColor="color"
+  app:chart_donutRoundCorners="boolean"
+  app:chart_donutTotal="float"
+/>
+```
+
+
+License
+-------
+
+    Copyright 2019 Diogo Bernardino
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+[1]: https://twitter.com/dfbernardino

williamchart/docs/_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-minimal

williamchart/gradle.properties

@@ -0,0 +1,15 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

williamchart/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Jul 25 22:06:29 CST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

williamchart/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

williamchart/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

williamchart/jacoco.gradle

@@ -0,0 +1,7 @@
+junitJacoco {
+    jacocoVersion = '0.8.2' // type String
+    ignoreProjects = [] // type String array
+    excludes // type String List
+    includeNoLocationClasses = false // type boolean
+    includeInstrumentationCoverageInMergedReport = false // type boolean
+}

williamchart/ktlint.gradle

@@ -0,0 +1,21 @@
+configurations {
+    ktlint
+}
+
+dependencies {
+    ktlint 'com.pinterest:ktlint:0.35.0'
+}
+
+task ktlint(type: JavaExec, group: "verification") {
+    description = "Check Kotlin code style."
+    classpath = configurations.ktlint
+    main = "com.pinterest.ktlint.Main"
+    args "src/**/*.kt"
+}
+
+task ktlintFormat(type: JavaExec, group: "formatting") {
+    description = "Fix Kotlin code style deviations."
+    classpath = configurations.ktlint
+    main = "com.pinterest.ktlint.Main"
+    args "-F", "src/**/*.kt"
+}

williamchart/mobile/.gitignore

@@ -0,0 +1 @@
+/build

williamchart/mobile/build.gradle

@@ -0,0 +1,67 @@
+plugins {
+    id("com.android.application")
+    id("com.github.triplet.play") version "2.0.0"
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'com.github.triplet.play'
+
+Properties properties = new Properties()
+File localPropertiesFiles = project.rootProject.file('local.properties')
+
+if (localPropertiesFiles.exists())
+    properties.load(localPropertiesFiles.newDataInputStream())
+
+android {
+
+    compileSdkVersion rootProject.targetSdkVersion
+
+    defaultConfig {
+        applicationId "com.db.williamchartdemo"
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 20
+        versionName rootProject.williamchartVersion
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    if (localPropertiesFiles.exists()) {
+        signingConfigs {
+            release {
+//                storeFile file(properties.getProperty("storeFile"))
+//                storePassword properties.getProperty("storePassword")
+//                keyAlias properties.getProperty("keyAlias")
+//                keyPassword properties.getProperty("keyPassword")
+            }
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            if (localPropertiesFiles.exists())
+                signingConfig signingConfigs.release
+        }
+    }
+}
+
+dependencies {
+    implementation project(path: ':williamchart')
+    implementation project(path: ':slidertooltip')
+    //implementation "com.diogobernardino:williamchart:$rootProject.williamchartVersion"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$rootProject.kotlinVersion"
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.13.1'
+    androidTestImplementation 'androidx.test:runner:1.3.0'
+}
+
+play {
+    serviceAccountEmail = properties.containsKey("play.accountEmail") ? properties.getProperty("play.accountEmail") : "dummyPlayAccountEmail"
+    serviceAccountCredentials = file(properties.containsKey("play.p12") ? properties.getProperty("play.p12") : "dummyPlayP12")
+    track = 'alpha'
+}

williamchart/mobile/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

williamchart/mobile/src/main/AndroidManifest.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.db.williamchartdemo">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <activity android:name="com.db.williamchartdemo.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <meta-data android:name="preloaded_fonts" android:resource="@array/preloaded_fonts"/>
+
+    </application>
+
+</manifest>

williamchart/mobile/src/main/java/com/db/williamchartdemo/DemoFragment.kt

@@ -0,0 +1,108 @@
+package com.db.williamchartdemo
+
+import android.graphics.Color
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.db.williamchart.ExperimentalFeature
+import com.db.williamchart.slidertooltip.SliderTooltip
+import kotlinx.android.synthetic.main.demo_fragment.*
+
+class DemoFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = inflater.inflate(R.layout.demo_fragment, container, false)
+
+    @OptIn(ExperimentalFeature::class)
+    override fun onViewCreated(view: View, saveInstanceState: Bundle?) {
+
+        /**
+         * Line Chart
+         */
+        lineChart.gradientFillColors =
+            intArrayOf(
+                Color.parseColor("#81FFFFFF"),
+                Color.TRANSPARENT
+            )
+        lineChart.animation.duration = animationDuration
+        lineChart.tooltip =
+            SliderTooltip().also {
+                it.color = Color.WHITE
+            }
+        lineChart.onDataPointTouchListener = { index, _, _ ->
+            lineChartValue.text =
+                lineSet.toList()[index]
+                    .second
+                    .toString()
+        }
+        lineChart.animate(lineSet)
+
+        /**
+         * Bar Chart
+         */
+        barChart.animation.duration = animationDuration
+        barChart.animate(barSet)
+
+        /**
+         * Donut Chart
+         */
+        donutChart.donutColors = intArrayOf(
+            Color.parseColor("#FFFFFF"),
+            Color.parseColor("#9EFFFFFF"),
+            Color.parseColor("#8DFFFFFF")
+        )
+        donutChart.animation.duration = animationDuration
+        donutChart.animate(donutSet)
+
+        /**
+         * Horizontal Bar Chart
+         */
+        horizontalBarChart.animation.duration = animationDuration
+        horizontalBarChart.animate(horizontalBarSet)
+    }
+
+    companion object {
+        private val lineSet = listOf(
+            "label1" to 5f,
+            "label2" to 4.5f,
+            "label3" to 4.7f,
+            "label4" to 3.5f,
+            "label5" to 3.6f,
+            "label6" to 7.5f,
+            "label7" to 7.5f,
+            "label8" to 10f,
+            "label9" to 5f,
+            "label10" to 6.5f,
+            "label11" to 3f,
+            "label12" to 4f
+        )
+
+        private val barSet = listOf(
+            "JAN" to 4F,
+            "FEB" to 7F,
+            "MAR" to 2F,
+            "MAY" to 2.3F,
+            "APR" to 5F,
+            "JUN" to 4F
+        )
+
+        private val horizontalBarSet = listOf(
+            "PORRO" to 5F,
+            "FUSCE" to 6.4F,
+            "EGET" to 3F
+        )
+
+        private val donutSet = listOf(
+            20f,
+            80f,
+            100f
+        )
+
+        private const val animationDuration = 1000L
+    }
+}

williamchart/mobile/src/main/java/com/db/williamchartdemo/MainActivity.kt

@@ -0,0 +1,12 @@
+package com.db.williamchartdemo
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+    }
+}

williamchart/mobile/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

williamchart/mobile/src/main/res/drawable/ic_barchart.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,3L5,3c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2L21,5c0,-1.1 -0.9,-2 -2,-2zM9,17L7,17v-7h2v7zM13,17h-2L11,7h2v10zM17,17h-2v-4h2v4z"/>
+</vector>

williamchart/mobile/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>

williamchart/mobile/src/main/res/drawable/ic_linechart.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3.5,18.49l6,-6.01 4,4L22,6.92l-1.41,-1.41 -7.09,7.97 -4,-4L2,16.99z"/>
+</vector>

williamchart/mobile/src/main/res/drawable/layout_background.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <gradient
+                android:startColor="#A4C8B1"
+                android:endColor="#85B496"
+                android:angle="0"/>
+        </shape>
+    </item>
+</layer-list>

williamchart/mobile/src/main/res/drawable/rounded_card_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#E1FFFFFF"/>
+    <corners android:radius="30dp"/>
+    <padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp"/>
+</shape>

williamchart/mobile/src/main/res/font/istok_web_bold.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<font-family xmlns:app="http://schemas.android.com/apk/res-auto"
+        app:fontProviderAuthority="com.google.android.gms.fonts"
+        app:fontProviderPackage="com.google.android.gms"
+        app:fontProviderQuery="name=Istok Web&amp;weight=700"
+        app:fontProviderCerts="@array/com_google_android_gms_fonts_certs">
+</font-family>

williamchart/mobile/src/main/res/font/supermercado_one.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<font-family
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    app:fontProviderAuthority="com.google.android.gms.fonts"
+    app:fontProviderPackage="com.google.android.gms"
+    app:fontProviderQuery="Supermercado One"
+    app:fontProviderCerts="@array/com_google_android_gms_fonts_certs">
+</font-family>

williamchart/mobile/src/main/res/layout/activity_main.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<fragment
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/contentFrame"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:name="com.db.williamchartdemo.DemoFragment"/>

williamchart/mobile/src/main/res/layout/demo_fragment.xml

@@ -0,0 +1,153 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/layout_background"
+    android:paddingLeft="20dp"
+    android:paddingRight="20dp">
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/backgroundGuideline"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_percent="0.07" />
+
+    <TextView
+        android:id="@+id/appLogo"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="25dp"
+        android:layout_marginBottom="20dp"
+        android:fontFamily="@font/supermercado_one"
+        android:text="williamchart"
+        android:textColor="@android:color/white"
+        android:textSize="35sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/lineChartTitle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:fontFamily="@font/open_sans_bold"
+        android:text="Lorem"
+        android:textColor="#475F50"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toTopOf="@id/lineChart"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toTopOf="@id/backgroundGuideline" />
+
+    <com.db.williamchart.view.LineChartView
+        android:id="@+id/lineChart"
+        android:layout_width="0dp"
+        android:layout_height="70dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginRight="20dp"
+        app:chart_axis="none"
+        app:chart_gridEffect="dotted"
+        app:chart_labelsColor="#FF70977F"
+        app:chart_labelsFont="@font/open_sans_bold"
+        app:chart_labelsSize="10sp"
+        app:chart_lineColor="#ffffff"
+        app:chart_lineThickness="3dp"
+        app:chart_smoothLine="true"
+        app:layout_constraintBottom_toTopOf="@id/lineChartValue"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/lineChartTitle" />
+
+    <TextView
+        android:id="@+id/lineChartValue"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="20dp"
+        android:layout_marginLeft="20dp"
+        android:fontFamily="@font/open_sans_bold"
+        android:text="320"
+        android:textColor="#FF70977F"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toTopOf="@id/barChartTitle"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/lineChart" />
+
+    <TextView
+        android:id="@+id/lineChartUnits"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="5dp"
+        android:layout_marginLeft="5dp"
+        android:fontFamily="@font/open_sans_bold"
+        android:text="stinu"
+        android:textColor="#FF70977F"
+        android:textSize="17sp"
+        app:layout_constraintBaseline_toBaselineOf="@id/lineChartValue"
+        app:layout_constraintLeft_toRightOf="@id/lineChartValue"
+        app:layout_constraintTop_toTopOf="@id/lineChartValue" />
+
+    <TextView
+        android:id="@+id/barChartTitle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:fontFamily="@font/open_sans_bold"
+        android:text="Ipsum Dolor"
+        android:textColor="#475F50"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toTopOf="@id/barChart"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/lineChartValue" />
+
+    <com.db.williamchart.view.BarChartView
+        android:id="@+id/barChart"
+        android:layout_width="0dp"
+        android:layout_height="150dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginRight="20dp"
+        app:chart_axis="x"
+        app:chart_barsColor="#fff"
+        app:chart_barsRadius="4dp"
+        app:chart_labelsColor="#FF70977F"
+        app:chart_labelsFont="@font/open_sans_bold"
+        app:chart_labelsSize="10sp"
+        app:chart_spacing="15dp"
+        app:layout_constraintBottom_toTopOf="@id/horizontalBarChart"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toLeftOf="@id/donutChart"
+        app:layout_constraintTop_toBottomOf="@id/barChartTitle" />
+
+    <com.db.williamchart.view.DonutChartView
+        android:id="@+id/donutChart"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginRight="20dp"
+        app:chart_donutBackgroundColor="#70977F"
+        app:chart_donutRoundCorners="true"
+        app:chart_donutThickness="15dp"
+        app:chart_donutTotal="200"
+        app:layout_constraintBottom_toBottomOf="@id/barChart"
+        app:layout_constraintLeft_toRightOf="@id/barChart"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="@id/barChart" />
+
+    <com.db.williamchart.view.HorizontalBarChartView
+        android:id="@+id/horizontalBarChart"
+        android:layout_width="0dp"
+        android:layout_height="120dp"
+        android:layout_marginEnd="20dp"
+        android:layout_marginRight="20dp"
+        app:chart_axis="y"
+        app:chart_barsColor="#fff"
+        app:chart_barsRadius="6dp"
+        app:chart_labelsColor="#475F50"
+        app:chart_labelsFont="@font/open_sans_bold"
+        app:chart_labelsSize="15sp"
+        app:chart_spacing="20dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/barChart" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

williamchart/mobile/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

williamchart/mobile/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

williamchart/mobile/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#475F50</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

williamchart/mobile/src/main/res/values/font_certs.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <array name="com_google_android_gms_fonts_certs">
+        <item>@array/com_google_android_gms_fonts_certs_dev</item>
+        <item>@array/com_google_android_gms_fonts_certs_prod</item>
+    </array>
+    <string-array name="com_google_android_gms_fonts_certs_dev">
+        <item>
+            MIIEqDCCA5CgAwIBAgIJANWFuGx90071MA0GCSqGSIb3DQEBBAUAMIGUMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMNTW91bnRhaW4gVmlldzEQMA4GA1UEChMHQW5kcm9pZDEQMA4GA1UECxMHQW5kcm9pZDEQMA4GA1UEAxMHQW5kcm9pZDEiMCAGCSqGSIb3DQEJARYTYW5kcm9pZEBhbmRyb2lkLmNvbTAeFw0wODA0MTUyMzM2NTZaFw0zNTA5MDEyMzM2NTZaMIGUMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMNTW91bnRhaW4gVmlldzEQMA4GA1UEChMHQW5kcm9pZDEQMA4GA1UECxMHQW5kcm9pZDEQMA4GA1UEAxMHQW5kcm9pZDEiMCAGCSqGSIb3DQEJARYTYW5kcm9pZEBhbmRyb2lkLmNvbTCCASAwDQYJKoZIhvcNAQEBBQADggENADCCAQgCggEBANbOLggKv+IxTdGNs8/TGFy0PTP6DHThvbbR24kT9ixcOd9W+EaBPWW+wPPKQmsHxajtWjmQwWfna8mZuSeJS48LIgAZlKkpFeVyxW0qMBujb8X8ETrWy550NaFtI6t9+u7hZeTfHwqNvacKhp1RbE6dBRGWynwMVX8XW8N1+UjFaq6GCJukT4qmpN2afb8sCjUigq0GuMwYXrFVee74bQgLHWGJwPmvmLHC69EH6kWr22ijx4OKXlSIx2xT1AsSHee70w5iDBiK4aph27yH3TxkXy9V89TDdexAcKk/cVHYNnDBapcavl7y0RiQ4biu8ymM8Ga/nmzhRKya6G0cGw8CAQOjgfwwgfkwHQYDVR0OBBYEFI0cxb6VTEM8YYY6FbBMvAPyT+CyMIHJBgNVHSMEgcEwgb6AFI0cxb6VTEM8YYY6FbBMvAPyT+CyoYGapIGXMIGUMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMNTW91bnRhaW4gVmlldzEQMA4GA1UEChMHQW5kcm9pZDEQMA4GA1UECxMHQW5kcm9pZDEQMA4GA1UEAxMHQW5kcm9pZDEiMCAGCSqGSIb3DQEJARYTYW5kcm9pZEBhbmRyb2lkLmNvbYIJANWFuGx90071MAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEEBQADggEBABnTDPEF+3iSP0wNfdIjIz1AlnrPzgAIHVvXxunW7SBrDhEglQZBbKJEk5kT0mtKoOD1JMrSu1xuTKEBahWRbqHsXclaXjoBADb0kkjVEJu/Lh5hgYZnOjvlba8Ld7HCKePCVePoTJBdI4fvugnL8TsgK05aIskyY0hKI9L8KfqfGTl1lzOv2KoWD0KWwtAWPoGChZxmQ+nBli+gwYMzM1vAkP+aayLe0a1EQimlOalO762r0GXO0ks+UeXde2Z4e+8S/pf7pITEI/tP+MxJTALw9QUWEv9lKTk+jkbqxbsh8nfBUapfKqYn0eidpwq2AzVp3juYl7//fKnaPhJD9gs=
+        </item>
+    </string-array>
+    <string-array name="com_google_android_gms_fonts_certs_prod">
+        <item>
+            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
+        </item>
+    </string-array>
+</resources>

williamchart/mobile/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#85B496</color>
+</resources>

williamchart/mobile/src/main/res/values/preloaded_fonts.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <array name="preloaded_fonts" translatable="false">
+        <item>@font/istok_web_bold</item>
+        <item>@font/supermercado_one</item>
+    </array>
+</resources>

williamchart/mobile/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">williamchart</string>
+</resources>

williamchart/mobile/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

williamchart/pointstooltip/.gitignore

@@ -0,0 +1 @@
+/build

williamchart/pointstooltip/build.gradle

@@ -0,0 +1,27 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion rootProject.targetSdkVersion
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName rootProject.williamchartVersion
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$rootProject.kotlinVersion"
+    implementation project(path: ':williamchart')
+}
+
+apply from: 'publish.gradle'

williamchart/pointstooltip/publish.gradle

@@ -0,0 +1,62 @@
+apply plugin: 'maven-publish'
+apply plugin: 'com.jfrog.bintray'
+
+version rootProject.williamchartVersion
+group 'com.diogobernardino.williamchart'
+
+task sourcesJar(type: Jar) {
+    classifier = 'sources'
+    from android.sourceSets.main.java.srcDirs
+}
+
+publishing {
+    publications {
+        Production(MavenPublication) {
+            artifact("$buildDir/outputs/aar/pointstooltip-release.aar")
+            artifact sourcesJar
+            groupId this.group
+            artifactId 'tooltip-points'
+            version this.version
+
+            pom.withXml {
+                def dependenciesNode = asNode().appendNode('dependencies')
+                configurations.implementation.allDependencies.each {
+                    if (it.name != 'unspecified') {
+                        def dependencyNode = dependenciesNode.appendNode('dependency')
+                        dependencyNode.appendNode('groupId', it.group)
+                        dependencyNode.appendNode('artifactId', it.name)
+                        dependencyNode.appendNode('version', it.version)
+                    }
+                }
+            }
+        }
+    }
+}
+
+bintray {
+    Properties properties = new Properties()
+    File localPropertiesFiles = project.rootProject.file('local.properties')
+    if (localPropertiesFiles.exists())
+        properties.load(localPropertiesFiles.newDataInputStream())
+
+    user = properties.containsKey('bintrayUser') ? properties.getProperty('bintrayUser') : System.getenv('BINTRAY_USER')
+    key = properties.containsKey('bintrayApiKey') ? properties.getProperty('bintrayApiKey') : System.getenv('BINTRAY_API_KEY')
+    publications = ['Production']
+    configurations = ['archives']
+    // Default: false. Whether to run this as dry-run, without deploying
+    dryRun = false
+    // Default: false. Whether to override version artifacts already published
+    override = false
+    // Default: false. Whether version should be auto published after an upload
+    publish = true
+    pkg {
+        repo = 'maven' // the name of the repository you created on Bintray
+        name = 'com.diogobernardino.williamchart:tooltip-points'
+        // the name of the package you created inside it
+        version {
+            name = this.version
+            released = new Date()
+            vcsTag = this.version
+        }
+    }
+}

williamchart/pointstooltip/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="com.db.williamchart.pointtooltip" />

williamchart/pointstooltip/src/main/java/com/db/williamchart/pointtooltip/PointTooltip.kt

@@ -0,0 +1,35 @@
+package com.db.williamchart.pointtooltip
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import com.db.williamchart.Tooltip
+
+class PointTooltip : Tooltip {
+
+    private lateinit var tooltipView: View
+
+    @Suppress("MemberVisibilityCanBePrivate")
+    var drawableRes = R.drawable.circle_point
+
+    override fun onCreateTooltip(parentView: ViewGroup) {
+        tooltipView =
+            LayoutInflater.from(parentView.context)
+                .inflate(R.layout.point_tooltip_layout, parentView, false)
+        tooltipView.visibility = View.INVISIBLE
+
+        val imageView: ImageView = tooltipView.findViewById(R.id.tooltipImage)
+        imageView.setImageResource(drawableRes)
+
+        parentView.addView(tooltipView)
+    }
+
+    override fun onDataPointTouch(x: Float, y: Float) {}
+
+    override fun onDataPointClick(x: Float, y: Float) {
+        tooltipView.visibility = View.VISIBLE
+        tooltipView.x = x - tooltipView.width / 2
+        tooltipView.y = y - tooltipView.height / 2
+    }
+}

williamchart/pointstooltip/src/main/res/drawable/circle_point.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <solid android:color="#000" />
+    <size
+        android:width="10dp"
+        android:height="10dp" />
+</shape>

williamchart/pointstooltip/src/main/res/layout/point_tooltip_layout.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/tooltipImage"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    tools:ignore="ContentDescription" />

williamchart/settings.gradle

@@ -0,0 +1 @@
+include ':mobile', ':williamchart', ':slidertooltip', ':pointstooltip'

williamchart/slidertooltip/.gitignore

@@ -0,0 +1 @@
+/build

williamchart/slidertooltip/build.gradle

@@ -0,0 +1,27 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion rootProject.targetSdkVersion
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName rootProject.williamchartVersion
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$rootProject.kotlinVersion"
+    implementation project(path: ':williamchart')
+}
+
+apply from: 'publish.gradle'

williamchart/slidertooltip/publish.gradle

@@ -0,0 +1,62 @@
+apply plugin: 'maven-publish'
+apply plugin: 'com.jfrog.bintray'
+
+version rootProject.williamchartVersion
+group 'com.diogobernardino.williamchart'
+
+task sourcesJar(type: Jar) {
+    classifier = 'sources'
+    from android.sourceSets.main.java.srcDirs
+}
+
+publishing {
+    publications {
+        Production(MavenPublication) {
+            artifact("$buildDir/outputs/aar/slidertooltip-release.aar")
+            artifact sourcesJar
+            groupId this.group
+            artifactId 'tooltip-slider'
+            version this.version
+
+            pom.withXml {
+                def dependenciesNode = asNode().appendNode('dependencies')
+                configurations.implementation.allDependencies.each {
+                    if (it.name != 'unspecified') {
+                        def dependencyNode = dependenciesNode.appendNode('dependency')
+                        dependencyNode.appendNode('groupId', it.group)
+                        dependencyNode.appendNode('artifactId', it.name)
+                        dependencyNode.appendNode('version', it.version)
+                    }
+                }
+            }
+        }
+    }
+}
+
+bintray {
+    Properties properties = new Properties()
+    File localPropertiesFiles = project.rootProject.file('local.properties')
+    if (localPropertiesFiles.exists())
+        properties.load(localPropertiesFiles.newDataInputStream())
+
+    user = properties.containsKey('bintrayUser') ? properties.getProperty('bintrayUser') : System.getenv('BINTRAY_USER')
+    key = properties.containsKey('bintrayApiKey') ? properties.getProperty('bintrayApiKey') : System.getenv('BINTRAY_API_KEY')
+    publications = ['Production']
+    configurations = ['archives']
+    // Default: false. Whether to run this as dry-run, without deploying
+    dryRun = false
+    // Default: false. Whether to override version artifacts already published
+    override = false
+    // Default: false. Whether version should be auto published after an upload
+    publish = true
+    pkg {
+        repo = 'maven' // the name of the repository you created on Bintray
+        name = 'com.diogobernardino.williamchart:tooltip-slider'
+        // the name of the package you created inside it
+        version {
+            name = this.version
+            released = new Date()
+            vcsTag = this.version
+        }
+    }
+}

williamchart/slidertooltip/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="com.db.williamchart.slidertooltip" />

williamchart/slidertooltip/src/main/java/com/db/williamchart/slidertooltip/SliderTooltip.kt

@@ -0,0 +1,32 @@
+package com.db.williamchart.slidertooltip
+
+import android.graphics.Color
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.db.williamchart.ExperimentalFeature
+import com.db.williamchart.Tooltip
+
+@ExperimentalFeature
+class SliderTooltip : Tooltip {
+
+    private lateinit var tooltipView: View
+
+    var color = Color.BLACK
+
+    override fun onCreateTooltip(parentView: ViewGroup) {
+        tooltipView =
+            LayoutInflater.from(parentView.context)
+                .inflate(R.layout.tooltip_layout, parentView, false)
+        tooltipView.setBackgroundColor(color)
+        tooltipView.visibility = View.INVISIBLE
+        parentView.addView(tooltipView)
+    }
+
+    override fun onDataPointTouch(x: Float, y: Float) {
+        tooltipView.visibility = View.VISIBLE
+        tooltipView.x = x - tooltipView.width / 2
+    }
+
+    override fun onDataPointClick(x: Float, y: Float) {}
+}

williamchart/slidertooltip/src/main/res/layout/tooltip_layout.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<View xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="2dp"
+    android:layout_height="match_parent" />

williamchart/williamchart/.gitignore

@@ -0,0 +1 @@
+/build

williamchart/williamchart/build.gradle

@@ -0,0 +1,36 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+
+    compileSdkVersion rootProject.targetSdkVersion
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName rootProject.williamchartVersion
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.core:core-ktx:1.3.2'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$rootProject.kotlinVersion"
+    testImplementation 'junit:junit:4.13.1'
+    testImplementation "org.mockito:mockito-core:3.3.3"
+    testImplementation "com.nhaarman:mockito-kotlin:1.6.0"
+}
+
+apply from: 'publish.gradle'

williamchart/williamchart/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

williamchart/williamchart/publish.gradle

@@ -0,0 +1,55 @@
+apply plugin: 'maven-publish'
+apply plugin: 'com.jfrog.bintray'
+
+version rootProject.williamchartVersion
+group 'com.diogobernardino'
+
+publishing {
+    publications {
+        Production(MavenPublication) {
+            artifact("$buildDir/outputs/aar/williamchart-release.aar")
+            groupId this.group
+            artifactId 'williamchart'
+            version this.version
+
+            pom.withXml {
+                def dependenciesNode = asNode().appendNode('dependencies')
+                configurations.implementation.allDependencies.each {
+                    if (it.name != 'unspecified') {
+                        def dependencyNode = dependenciesNode.appendNode('dependency')
+                        dependencyNode.appendNode('groupId', it.group)
+                        dependencyNode.appendNode('artifactId', it.name)
+                        dependencyNode.appendNode('version', it.version)
+                    }
+                }
+            }
+        }
+    }
+}
+
+bintray {
+    Properties properties = new Properties()
+    File localPropertiesFiles = project.rootProject.file('local.properties')
+    if (localPropertiesFiles.exists())
+        properties.load(localPropertiesFiles.newDataInputStream())
+
+    user = properties.containsKey('bintrayUser') ? properties.getProperty('bintrayUser') : System.getenv('BINTRAY_USER')
+    key = properties.containsKey('bintrayApiKey') ? properties.getProperty('bintrayApiKey') : System.getenv('BINTRAY_API_KEY')
+    publications = ['Production']
+    configurations = ['archives']
+    // Default: false. Whether to run this as dry-run, without deploying
+    dryRun = false
+    // Default: false. Whether to override version artifacts already published
+    override = false
+    // Default: false. Whether version should be auto published after an upload
+    publish = true
+    pkg {
+        repo = 'maven' // the name of the repository you created on Bintray
+        name = 'com.diogobernardino:williamchart' // the name of the package you created inside it
+        version {
+            name = this.version
+            released = new Date()
+            vcsTag = this.version
+        }
+    }
+}

williamchart/williamchart/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="com.db.williamchart" />

williamchart/williamchart/src/main/java/com/db/williamchart/ChartContract.kt

@@ -0,0 +1,58 @@
+package com.db.williamchart
+
+import com.db.williamchart.animation.ChartAnimation
+import com.db.williamchart.data.configuration.ChartConfiguration
+import com.db.williamchart.data.DataPoint
+import com.db.williamchart.data.configuration.DonutChartConfiguration
+import com.db.williamchart.data.DonutDataPoint
+import com.db.williamchart.data.Frame
+import com.db.williamchart.data.Label
+
+interface ChartContract {
+
+    interface AxisView {
+        fun postInvalidate()
+        fun drawLabels(xLabels: List<Label>)
+        fun drawGrid(
+            innerFrame: Frame,
+            xLabelsPositions: List<Float>,
+            yLabelsPositions: List<Float>
+        )
+
+        fun drawDebugFrame(frames: List<Frame>)
+    }
+
+    interface LineView : AxisView {
+        fun drawLine(points: List<DataPoint>)
+        fun drawLineBackground(innerFrame: Frame, points: List<DataPoint>)
+        fun drawPoints(points: List<DataPoint>)
+    }
+
+    interface BarView : AxisView {
+        fun drawBars(frames: List<Frame>)
+        fun drawBarsBackground(frames: List<Frame>)
+    }
+
+    interface DonutView {
+        fun postInvalidate()
+        fun drawArc(degrees: List<Float>, innerFrame: Frame)
+        fun drawBackground(innerFrame: Frame)
+        fun drawDebugFrame(innerFrame: Frame)
+    }
+
+    interface Renderer {
+        fun preDraw(configuration: ChartConfiguration): Boolean
+        fun draw()
+        fun render(entries: List<Pair<String, Float>>)
+        fun anim(entries: List<Pair<String, Float>>, animation: ChartAnimation<DataPoint>)
+        fun processClick(x: Float?, y: Float?): Triple<Int, Float, Float>
+        fun processTouch(x: Float?, y: Float?): Triple<Int, Float, Float>
+    }
+
+    interface DonutRenderer {
+        fun preDraw(configuration: DonutChartConfiguration): Boolean
+        fun draw()
+        fun render(values: List<Float>)
+        fun anim(values: List<Float>, animation: ChartAnimation<DonutDataPoint>)
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/ExperimentalFeature.kt

@@ -0,0 +1,9 @@
+package com.db.williamchart
+
+@RequiresOptIn(
+    level = RequiresOptIn.Level.WARNING,
+    message = "This feature is experimental and it can change in future."
+)
+@Retention(AnnotationRetention.BINARY)
+@Target(AnnotationTarget.PROPERTY, AnnotationTarget.CLASS)
+annotation class ExperimentalFeature

williamchart/williamchart/src/main/java/com/db/williamchart/Grid.kt

@@ -0,0 +1,13 @@
+package com.db.williamchart
+
+import android.graphics.Canvas
+import com.db.williamchart.data.Frame
+
+interface Grid {
+    fun draw(
+        canvas: Canvas,
+        innerFrame: Frame,
+        xLabelsPositions: List<Float>,
+        yLabelsPositions: List<Float>
+    )
+}

williamchart/williamchart/src/main/java/com/db/williamchart/Labels.kt

@@ -0,0 +1,9 @@
+package com.db.williamchart
+
+import android.graphics.Canvas
+import android.graphics.Paint
+import com.db.williamchart.data.Label
+
+interface Labels {
+    fun draw(canvas: Canvas, paint: Paint, xLabels: List<Label>)
+}

williamchart/williamchart/src/main/java/com/db/williamchart/Painter.kt

@@ -0,0 +1,82 @@
+package com.db.williamchart
+
+import android.graphics.Paint
+import android.graphics.Shader
+import android.graphics.Typeface
+
+/**
+ * The Paint class holds the paint object used to draw charts
+ * and provides methods to speed up its customization before drawing.
+ */
+class Painter(
+    val paint: Paint = Paint(),
+    var labelsFont: Typeface?
+) {
+
+    init {
+        paint.textAlign = Paint.Align.CENTER
+    }
+
+    /**
+     * Measure text width given a certain font size.
+     *
+     * @param text text to be measured.
+     * @param textSize size used in font.
+     * @return width of the text.
+     */
+    fun measureLabelWidth(text: String, textSize: Float): Float {
+        paint.typeface = labelsFont
+        paint.textSize = textSize
+        return paint.measureText(text)
+    }
+
+    /**
+     * Measure the maximum text height for a given font size.
+     *
+     * @param textSize size used in font.
+     * @return height of the text.
+     */
+    fun measureLabelHeight(textSize: Float): Float {
+        paint.textSize = textSize
+        return paint.descent() - paint.ascent()
+    }
+
+    fun measureLabelAscent(textSize: Float): Float {
+        paint.textSize = textSize
+        return paint.ascent()
+    }
+
+    fun measureLabelDescent(textSize: Float): Float {
+        paint.textSize = textSize
+        return paint.descent()
+    }
+
+    /**
+     * Prepares a Paint object already configured to be used.
+     *
+     * @param textSize new font size to set in the paint.
+     * @param color new color (including alpha) to set in the paint.
+     * @param style new style to set in the paint.
+     * @param strokeWidth new stroke width, used when style is Stroke or StrokeAndFill.
+     * @param shader May be null. New shader to be set in the paint.
+     * @param typeface May be null. New Typeface to be set in the paint.
+     * @return Configured Paint object.
+     */
+    fun prepare(
+        textSize: Float = 15F,
+        color: Int = -0x1000000,
+        style: Paint.Style = Paint.Style.FILL,
+        strokeWidth: Float = 4F,
+        shader: Shader? = null,
+        font: Typeface? = null
+    ): Paint {
+        paint.textSize = textSize
+        paint.color = color
+        paint.style = style
+        paint.strokeWidth = strokeWidth
+        paint.shader = shader
+        paint.typeface = font
+
+        return paint
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/Tooltip.kt

@@ -0,0 +1,9 @@
+package com.db.williamchart
+
+import android.view.ViewGroup
+
+interface Tooltip {
+    fun onCreateTooltip(parentView: ViewGroup)
+    fun onDataPointTouch(x: Float, y: Float)
+    fun onDataPointClick(x: Float, y: Float)
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/ChartAnimation.kt

@@ -0,0 +1,20 @@
+package com.db.williamchart.animation
+
+import android.view.animation.DecelerateInterpolator
+import android.view.animation.Interpolator
+
+abstract class ChartAnimation<T> {
+
+    var duration: Long = DEFAULT_DURATION
+    var interpolator: Interpolator = DecelerateInterpolator()
+
+    abstract fun animateFrom(
+        startPosition: Float,
+        entries: List<T>,
+        callback: () -> Unit
+    ): ChartAnimation<T>
+
+    companion object {
+        private const val DEFAULT_DURATION = 1000L
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/DefaultAnimation.kt

@@ -0,0 +1,38 @@
+package com.db.williamchart.animation
+
+import android.animation.ObjectAnimator
+import android.animation.ValueAnimator
+import com.db.williamchart.data.DataPoint
+
+class DefaultAnimation : ChartAnimation<DataPoint>() {
+
+    override fun animateFrom(
+        startPosition: Float,
+        entries: List<DataPoint>,
+        callback: () -> Unit
+    ): ChartAnimation<DataPoint> {
+
+        // Entries animators
+        entries.forEach { dataPoint ->
+            val eAnimator: ObjectAnimator =
+                ObjectAnimator.ofFloat(
+                    dataPoint,
+                    "screenPositionY",
+                    startPosition,
+                    dataPoint.screenPositionY
+                )
+            eAnimator.duration = duration
+            eAnimator.interpolator = interpolator
+            eAnimator.start()
+        }
+
+        // Global animator
+        val animator: ValueAnimator = ValueAnimator.ofInt(0, 1)
+        animator.addUpdateListener { callback.invoke() }
+        animator.duration = duration
+        animator.interpolator = interpolator
+        animator.start()
+
+        return this
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/DefaultDonutAnimation.kt

@@ -0,0 +1,33 @@
+package com.db.williamchart.animation
+
+import android.animation.ObjectAnimator
+import android.animation.ValueAnimator
+import com.db.williamchart.data.DonutDataPoint
+
+class DefaultDonutAnimation : ChartAnimation<DonutDataPoint>() {
+
+    override fun animateFrom(
+        startPosition: Float,
+        entries: List<DonutDataPoint>,
+        callback: () -> Unit
+    ): ChartAnimation<DonutDataPoint> {
+
+        // Entries animators
+        entries.forEach { dataPoint ->
+            val eAnimator: ObjectAnimator =
+                ObjectAnimator.ofFloat(dataPoint, "screenDegrees", 0f, dataPoint.screenDegrees)
+            eAnimator.duration = duration
+            eAnimator.interpolator = interpolator
+            eAnimator.start()
+        }
+
+        // Global animator
+        val animator: ValueAnimator = ValueAnimator.ofInt(0, 1)
+        animator.addUpdateListener { callback.invoke() }
+        animator.duration = duration
+        animator.interpolator = interpolator
+        animator.start()
+
+        return this
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/DefaultHorizontalAnimation.kt

@@ -0,0 +1,33 @@
+package com.db.williamchart.animation
+
+import android.animation.ObjectAnimator
+import android.animation.ValueAnimator
+import com.db.williamchart.data.DataPoint
+
+class DefaultHorizontalAnimation : ChartAnimation<DataPoint>() {
+
+    override fun animateFrom(
+        startPosition: Float,
+        entries: List<DataPoint>,
+        callback: () -> Unit
+    ): ChartAnimation<DataPoint> {
+
+        // Entries animators
+        entries.forEach { dataPoint ->
+            val eAnimator: ObjectAnimator =
+                ObjectAnimator.ofFloat(dataPoint, "screenPositionX", startPosition, dataPoint.screenPositionX)
+            eAnimator.duration = duration
+            eAnimator.interpolator = interpolator
+            eAnimator.start()
+        }
+
+        // Global animator
+        val animator: ValueAnimator = ValueAnimator.ofInt(0, 1)
+        animator.addUpdateListener { callback.invoke() }
+        animator.duration = duration
+        animator.interpolator = interpolator
+        animator.start()
+
+        return this
+    }
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/DonutNoAnimation.kt

@@ -0,0 +1,12 @@
+package com.db.williamchart.animation
+
+import com.db.williamchart.data.DonutDataPoint
+
+class DonutNoAnimation : ChartAnimation<DonutDataPoint>() {
+
+    override fun animateFrom(
+        startPosition: Float,
+        entries: List<DonutDataPoint>,
+        callback: () -> Unit
+    ): ChartAnimation<DonutDataPoint> = this
+}

williamchart/williamchart/src/main/java/com/db/williamchart/animation/NoAnimation.kt

@@ -0,0 +1,12 @@
+package com.db.williamchart.animation
+
+import com.db.williamchart.data.DataPoint
+
+class NoAnimation : ChartAnimation<DataPoint>() {
+
+    override fun animateFrom(
+        startPosition: Float,
+        entries: List<DataPoint>,
+        callback: () -> Unit
+    ): ChartAnimation<DataPoint> = this
+}

williamchart/williamchart/src/main/java/com/db/williamchart/data/AxisType.kt

@@ -0,0 +1,16 @@
+package com.db.williamchart.data
+
+enum class AxisType {
+    NONE, // No axis
+    X, // Only axis X
+    Y, // Only axis Y
+    XY // All axis
+}
+
+fun AxisType.shouldDisplayAxisX(): Boolean {
+    return this == AxisType.XY || this == AxisType.X
+}
+
+fun AxisType.shouldDisplayAxisY(): Boolean {
+    return this == AxisType.XY || this == AxisType.Y
+}

williamchart/williamchart/src/main/java/com/db/williamchart/data/DataPoint.kt

@@ -0,0 +1,8 @@
+package com.db.williamchart.data
+
+data class DataPoint(
+    val label: String,
+    val value: Float,
+    var screenPositionX: Float = 0f,
+    var screenPositionY: Float = 0f
+)

williamchart/williamchart/src/main/java/com/db/williamchart/data/DonutDataPoint.kt

@@ -0,0 +1,6 @@
+package com.db.williamchart.data
+
+data class DonutDataPoint(
+    val value: Float,
+    var screenDegrees: Float = 0f
+)

williamchart/williamchart/src/main/java/com/db/williamchart/data/Frame.kt

@@ -0,0 +1,38 @@
+package com.db.williamchart.data
+
+import android.graphics.LinearGradient
+import android.graphics.Rect
+import android.graphics.RectF
+import android.graphics.Shader
+import androidx.core.graphics.toRectF
+
+data class Frame(val left: Float, val top: Float, val right: Float, val bottom: Float)
+
+fun Frame.toRect(): Rect =
+    Rect(this.left.toInt(), this.top.toInt(), this.right.toInt(), this.bottom.toInt())
+
+fun Frame.toRectF(): RectF = toRect().toRectF()
+
+fun Frame.withPaddings(paddings: Paddings): Frame =
+    Frame(
+        left = left + paddings.left,
+        top = top + paddings.top,
+        right = right - paddings.right,
+        bottom = bottom - paddings.bottom
+    )
+
+fun Frame.toLinearGradient(gradientColors: IntArray): LinearGradient {
+    return LinearGradient(
+        left,
+        top,
+        left,
+        bottom,
+        gradientColors[0],
+        gradientColors[1],
+        Shader.TileMode.MIRROR
+    )
+}
+
+fun Frame.contains(x: Float, y: Float): Boolean =
+    left < right && top < bottom && // check for empty first
+        x >= left && x < right && y >= top && y < bottom

williamchart/williamchart/src/main/java/com/db/williamchart/data/Label.kt

@@ -0,0 +1,7 @@
+package com.db.williamchart.data
+
+data class Label(
+    val label: String,
+    var screenPositionX: Float,
+    var screenPositionY: Float
+)

williamchart/williamchart/src/main/java/com/db/williamchart/data/Paddings.kt

@@ -0,0 +1,12 @@
+package com.db.williamchart.data
+
+data class Paddings(val left: Float, val top: Float, val right: Float, val bottom: Float)
+
+fun Paddings.mergeWith(paddings: Paddings): Paddings {
+    return Paddings(
+        maxOf(this.left, paddings.left),
+        maxOf(this.top, paddings.top),
+        maxOf(this.right, paddings.right),
+        maxOf(this.bottom, paddings.bottom)
+    )
+}

williamchart/williamchart/src/main/java/com/db/williamchart/data/Scale.kt

@@ -0,0 +1,9 @@
+package com.db.williamchart.data
+
+import com.db.williamchart.renderer.RendererConstants.Companion.notInitialized
+
+data class Scale(val min: Float, val max: Float) {
+    val size = max - min
+}
+
+fun Scale.notInitialized() = max == min && min == notInitialized

williamchart/williamchart/src/main/java/com/db/williamchart/data/configuration/BarChartConfiguration.kt

@@ -0,0 +1,25 @@
+package com.db.williamchart.data.configuration
+
+import com.db.williamchart.data.AxisType
+import com.db.williamchart.data.Paddings
+import com.db.williamchart.data.Scale
+
+data class BarChartConfiguration(
+    override val width: Int,
+    override val height: Int,
+    override val paddings: Paddings,
+    override val axis: AxisType,
+    override val labelsSize: Float,
+    override val scale: Scale,
+    override val labelsFormatter: (Float) -> String = { it.toString() },
+    val barsBackgroundColor: Int,
+    val barsSpacing: Float
+) : ChartConfiguration(
+    width = width,
+    height = height,
+    paddings = paddings,
+    axis = axis,
+    labelsSize = labelsSize,
+    scale = scale,
+    labelsFormatter = labelsFormatter
+)