First commit.

.gitignore

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+# 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/
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.java
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/ephemeral
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3

.metadata

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+# 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: 18116933e77adc82f80866c928266a5b4f1ed645
+  channel: stable
+
+project_type: package

CHANGELOG.md

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+# Widget Tree Depth Counter
+
+## [0.0.1-alpha]
+#### [@rickypid](https://github.com/rickypid)
+- Initial release.

LICENSE

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+Copyright © 2021 Riccardo Cucia (https://www.rcprogrammer.net/) All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+* Neither the name of Riccardo Cucia nor the names of its contributors may be used to
+  endorse or promote products derived from this software without specific prior
+  written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

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+#### widget_tree_depth_counter
+# Widget Tree Depth Counter
+[![Pub Package](https://img.shields.io/pub/v/widget_tree_depth_counter.svg?style=flat-square)](https://pub.dartlang.org/packages/widget_tree_depth_counter)
+[![likes](https://badges.bar/widget_tree_depth_counter/likes)](https://pub.dev/packages/widget_tree_depth_counter/score)
+[![popularity](https://badges.bar/widget_tree_depth_counter/popularity)](https://pub.dev/packages/widget_tree_depth_counter/score)
+[![pub points](https://badges.bar/widget_tree_depth_counter/pub%20points)](https://pub.dev/packages/widget_tree_depth_counter/score)
+
+[![Package Issue](https://img.shields.io/github/issues/rickypid/widget_tree_depth_counter)](https://github.com/rickypid/widget_tree_depth_counter/issues)
+![Package License](https://img.shields.io/github/license/rickypid/widget_tree_depth_counter)
+
+`WidgetTreeDepthCounter` is a simple widget to count the amount of nested widget tree, useful in the dynamic construction of the interface when it is important to know the depth of widget.
+
+| ![Image](https://github.com/rickypid/widget_tree_depth_counter/blob/master/doc/.media/example.jpg?raw=true) |
+| :------------: |
+| **WidgetTreeDepthCounter** |
+
+## Features
+
+* count of the depth of the widget with respect to the tree **(all uses of WidgetTreeDepthCounter in the current tree are counted, the other types of widgets are not counted)**
+
+This widget can be used conveniently in such cases:
+
+- Dynamically manage the colors of widgets based on their position in the tree
+- in an app that manages chapter numbers it is very easy to renumber them in case a chapter is removed.
+- ...
+
+  Many other cases where it is very difficult to manage a widget through fixed parameters to be managed based on the construction of the tree.
+
+ 
+
+## Usage
+
+Make sure to check out the [examples on GitHub](https://github.com/rickypid/widget_tree_depth_counter/tree/master/example).
+
+| ![Image](https://github.com/rickypid/widget_tree_depth_counter/blob/master/doc/.media/widget_tree_example.jpg?raw=true) |
+| :------------: |
+| **Example of operation in a widget tree** |
+
+### Installation
+
+#### From `pubspec.yaml`
+
+Add the following line to `pubspec.yaml`:
+
+```yaml
+dependencies:
+  widget_tree_depth_counter: <last-release>
+```
+
+and 
+
+```bash
+flutter pub get
+```
+
+#### From cli
+
+run following command:
+
+```bash
+flutter pub add provider
+```
+
+### Basic setup
+
+*Complete example [available here](https://github.com/rickypid/widget_tree_depth_counter/blob/master/example/lib/main.dart).*
+
+```dart
+ParentWidget(
+  child: WidgetTreeDepthCounter(
+    builder: (context, counter) => //counter=0
+      Container(
+        color: Theme.of(context)
+          .primaryColor
+          .withOpacity(counter * 0.05 + 0.05),
+          child: WidgetTreeDepthCounter(
+            builder: (context, counter) =>//counter=1
+                Container(
+                    color: Theme.of(context)
+                    .primaryColor
+                        .withOpacity(counter * 0.05 + 0.05),
+                ),
+          ),
+      ),
+  ),
+),
+```
+
+### WidgetTreeDepthCounter Properties
+
+* `builder`: Function called at layout time to construct the widget tree, return `Widget`.
+* `count`: With this parameter it's possible define or overwrite the current depth count value.
+
+&nbsp;
+
+### Use current `counter` value during build `WidgetTreeDepthCounter`
+
+`WidgetTreeDepthCounter` uses [Provider](https://pub.dev/packages/provider) library to count the depth, but if it is necessary to access the current value to perform a sum (for example), it is possible to retrieve the count value through the `Provider 'functions:
+
+```dart
+
+WidgetTreeDepthCounter(
+			count: context.read<DepthCounter>().value + 2,
+            builder: (context, counter) =>
+                Text(counter.toString()),
+          )
+
+```
+
+**Obviously to access the value via `context.read<DepthCounter>()` it is necessary that at least one `WidgetTreeDepthCounter` is present in the tree and `provider` package is required.**
+
+&nbsp;
+

analysis_options.yaml

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+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

example/.gitignore

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+# 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/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

example/.metadata

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+# 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: b2e05062b6d1d73024bbd42bf974509f9ddfb383
+  channel: master
+
+project_type: app

example/lib/helper/colored_container.dart

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+import 'package:flutter/material.dart';
+
+class ColoredContainer extends StatelessWidget {
+  final Color color;
+  final Widget? child;
+  final int counter;
+
+  const ColoredContainer(
+      {Key? key, required this.color, this.child, required this.counter})
+      : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      children: [
+        Container(
+          color: color,
+          margin: EdgeInsets.all(20),
+          child: child,
+        ),
+        Align(
+            alignment: Alignment.topLeft,
+            child: Padding(
+              padding: const EdgeInsets.only(top: 24, left: 24),
+              child: Text(counter.toString()),
+            )),
+      ],
+    );
+  }
+}