📊 Occurrence Time Range Selector

A highly interactive and customizable Flutter widget that allows users to select a time range while visualizing event occurrences on a dynamic chart.

✨ Features

• 🔍 Zoom and pan functionality for detailed exploration
• 📅 Dynamic time scale adapting to the selected range
• 📊 Stacked vertical bars for multiple event classes
• 🎨 Customizable colors and styles
• ⏱️ Millisecond precision for high-detail views
• 🖱️ Optimized for desktop use with mouse and keyboard

🚀 Getting Started

Usage

Import the package in your Dart code:

import 'package:occurrence_time_range_selector/occurrence_time_range_selector.dart';

Then, you can use the TimeRangeSelector widget in your Flutter app:

final now = DateTime.now();

TimeRangeSelector(
  startDate: now.subtract(Duration(days: 30)),
  endDate: now.add(Duration(days: 30)),
  events: [
    TimeEvent(tag: 'Class A', dateTime: now.subtract(Duration(days: 15))),
    TimeEvent(tag: 'Class B', dateTime: now.subtract(Duration(days: 7))),
    TimeEvent(tag: 'Class A', dateTime: now),
    TimeEvent(tag: 'Class C', dateTime: now.add(Duration(days: 10))),
    TimeEvent(tag: 'Class B', dateTime: now.add(Duration(days: 20))),
  ],
  tagStyles: const {
    'Class A': TagStyle(color: Colors.blue),
    'Class B': TagStyle(color: Colors.red),
    'Class C': TagStyle(color: Colors.green),
  },
  onRangeChanged: (DateTime newStart, DateTime newEnd) {
    print('New range: $newStart to $newEnd');
  },
  style: const TimelineStyle(
    axisColor: Colors.black,
    axisLabelStyle: TextStyle(fontSize: 18, color: Colors.black),
    barSpacing: 2,
    backgroundColor: Colors.white,
  ),
)

🛠️ Customization

The TimeRangeSelector widget offers various customization options:

• tagStyles: Define colors for different event classes
• style: Customize the appearance of the timeline
• minZoomFactor and maxZoomFactor: Set limits for zooming capabilities

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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Made with ❤️ by odd.io