Legacy Timeline Scrubber

A Flutter widget that provides a timeline scrubber for a Gantt chart. It allows you to visualize tasks and navigate through a timeline.

About the Name

The name legacy_timeline_scrubber is a tribute to the package's author, Patrick Legacy. It does not imply that the package is outdated or unmaintained. In fact, it is a modern, actively developed, and highly capable solution for building production-ready Flutter applications.

Features

• Display tasks on a timeline.
• Scrub through the timeline to change the visible date range.
• Customize the appearance of the scrubber and tasks.
• Zoom in and out of the timeline.

Getting started

To use this package, add legacy_timeline_scrubber as a dependency in your pubspec.yaml file.

dependencies:
  legacy_timeline_scrubber: ^1.0.0

Usage

Here is a simple example of how to use the LegacyGanttTimelineScrubber widget:

import 'package:flutter/material.dart';
import 'package:legacy_timeline_scrubber/legacy_timeline_scrubber.dart';
import 'package:legacy_timeline_scrubber/src/models/legacy_gantt_task.dart';

class MyTimeline extends StatefulWidget {
  @override
  _MyTimelineState createState() => _MyTimelineState();
}

class _MyTimelineState extends State<MyTimeline> {
  late DateTime totalStartDate;
  late DateTime totalEndDate;
  late DateTime visibleStartDate;
  late DateTime visibleEndDate;
  final List<LegacyGanttTask> tasks = [];

  @override
  void initState() {
    super.initState();
    final now = DateTime.now();
    totalStartDate = now.subtract(const Duration(days: 10));
    totalEndDate = now.add(const Duration(days: 10));
    visibleStartDate = now.subtract(const Duration(days: 2));
    visibleEndDate = now.add(const Duration(days: 2));

    tasks.addAll([
      LegacyGanttTask(
        id: '1',
        rowId: 'row1',
        start: now.subtract(const Duration(days: 5)),
        end: now.subtract(const Duration(days: 3)),
        name: 'Task 1',
      ),
    ]);
  }

  void onWindowChanged(DateTime start, DateTime end) {
    setState(() {
      visibleStartDate = start;
      visibleEndDate = end;
    });
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: 100,
      child: LegacyGanttTimelineScrubber(
        totalStartDate: totalStartDate,
        totalEndDate: totalEndDate,
        visibleStartDate: visibleStartDate,
        visibleEndDate: visibleEndDate,
        onWindowChanged: onWindowChanged,
        tasks: tasks,
      ),
    );
  }
}

Example Project

This package includes an example project that demonstrates the features of the LegacyGanttTimelineScrubber.

To run the example project:

1. Clone the repository.

2. Navigate to the example directory:

   cd example
   

3. Get the dependencies:

   flutter pub get
   

4. Run the app:

   flutter run
   

Additional information

This package is currently under development. Contributions are welcome. Please file any issues or feature requests on the GitHub repository.