@lowerton/gantt-task-react

gantt-task-react

Interactive Gantt Chart for React with TypeScript.

A highly customizable and interactive Gantt chart component for React with TypeScript support. This repository integrates features and enhancements from the original MaTeMaTuK/gantt-task-react , the ObeoNetwork/gantt-task-react fork, and our current development, creating a comprehensive solution for managing Gantt charts.

Key Features

• Performance Improvements: Optimized rendering to handle large datasets efficiently, ensuring smooth user interactions.
• Enhanced Customization: Allows for more extensive task styling options to match brand-specific requirements.
• TypeScript Integration: Improved type definitions for safer and more efficient development workflows.
• Responsive Design: Improved mobile and tablet support for better usability across different devices.
• Dependency Management: Enhanced task dependency features, allowing for more complex project planning scenarios.
• Advanced Timeline Navigation: Features smooth navigation across different timeframes like months and weeks.
• Localization Support: Offers localization for various languages and date formats.
• Event Handling: Supports comprehensive event handling for interactive features.
• QuarterYear View Mode: Supports viewing tasks in quarterly segments, providing a flexible timeline view.

Enhancement Summary

This repository combines the foundational work of MaTeMaTuK/gantt-task-react with enhancements from ObeoNetwork, including better integration with TypeScript, improved rendering performance for large datasets, and new customization options for task styling. The project is further developed in this fork, focusing on additional usability improvements and feature expansions.

Installation

Install the package using npm:

npm install @wamra/gantt-task-react

How to use it

import { Gantt, Task, EventOption, StylingOption, ViewMode, DisplayOption } from '@wamra/gantt-task-react';
import "@wamra/gantt-task-react/dist/index.css";

let tasks: Task[] = [
  {
    start: new Date(2020, 1, 1),
    end: new Date(2020, 1, 2),
    name: 'Idea',
    id: 'Task 0',
    type: 'task',
    progress: 45,
    isDisabled: true,
    styles: { progressColor: '#ffbb54', progressSelectedColor: '#ff9e0d' },
  },
  ...
];
<Gantt tasks={tasks}/>

You may handle actions

<Gantt
  tasks={tasks}
  viewMode={view}
  onDateChange={onTaskChange}
  onTaskDelete={onTaskDelete}
  onProgressChange={onProgressChange}
  onDoubleClick={onDblClick}
  onClick={onClick}
/>

How to run example

cd ./example
npm install
npm start

Gantt Configuration

GanttProps

Parameter Name	Type	Description
tasks*	Task	An array of tasks to display in the Gantt chart.
viewMode	ViewMode	Specifies the time scale for the chart.
onDateChange	function	Callback when a task's start or end date changes.
onProgressChange	function	Callback when a task's progress changes.
onDoubleClick	function	Callback when a task is double-clicked.
onClick	function	Callback when a task is clicked.
rtl	boolean	Right-to-left display mode.
locale	Locale	Localization for date and time formatting.
barBackgroundColor	string	Background color of task bars.
barProgressColor	string	Color of the task bar's progress indicator.
projectBackgroundColor	string	Background color for project tasks.
milestoneBackgroundColor	string	Background color for milestone tasks.
todayColor	string	Color of the "today" indicator line.
arrowColor	string	Color of dependency arrows.
fontFamily	string	Font family for the chart.
fontSize	string	Font size for text within the chart.
rowHeight	number	Height of each row.
columnWidth	number	Width of each time unit column.
ganttHeight	number	Total height of the Gantt chart.
ganttWidth	number	Total width of the Gantt chart.
taskHeight	number	Height of task bars within each row.
dependencies	boolean	Display task dependencies as arrows.
taskListCellWidth	string	Width of the task list cell. Empty to hide.
dragStep	number	Time step for dragging actions, in milliseconds.

EventOption

Parameter Name	Type	Description
onSelect	(task: Task, isSelected: boolean) => void	Function to execute on taskbar select/unselect event.
onDoubleClick	(task: Task) => void	Function to execute on taskbar double-click event.
onClick	(task: Task) => void	Function to execute on taskbar click event.
onDelete*	(task: Task) => void/boolean/Promise/Promise	Function to execute on taskbar delete button press event.
onDateChange*	(task: Task, children: Task[]) => void/boolean/Promise/Promise	Function to execute when dragging taskbar event on timeline finishes.
onProgressChange*	(task: Task, children: Task[]) => void/boolean/Promise/Promise	Function to execute when dragging taskbar progress event finishes.
onExpanderClick*	onExpanderClick: (task: Task) => void;	Function to execute on the table expander click.
onWheel*	onWheel: (wheelEvent: WheelEvent) => void;	Function to execute when the mouse wheel is used.
timeStep	number	Time step value for onDateChange. Specify in milliseconds.

Chart undoes operation if method returns false or error. Parameter children returns one-level deep records.

DisplayOption

Parameter Name	Type	Description
viewMode	enum	Specifies the time scale. Options: Hour, Quarter Day, Half Day, Day, Week(ISO-8601, 1st day is Monday), Month, QuarterYear, Year.
viewDate	date	Specifies display date and time for display.
preStepsCount	number	Specifies empty space before the first task.
locale	string	Specifies the month name language. Able formats: ISO 639-2, Java Locale.
monthCalendarFormat	string	Specifies the month display on the calendar.
monthTaskListFormat	string	Specifies the month display on the list.
rtl	boolean	Sets rtl mode.
roundDate		Allows customizing the way the date start/end are rounded.
checkIsHoliday		Tells if a date is a holiday. Impacts the style of the day and the way the date is adjusted to working days.
dateMoveStep		An object corresponding to a duration. Gives the step to adjust to the working day when moving the date allowing smooth feedback.

StylingOption

Parameter Name	Type	Description
headerHeight	number	Specifies the header height.
columnWidth	number	Specifies the time period width.
listCellWidth	string	Specifies the task list cell width. Empty string means "no display".
rowHeight	number	Specifies the task row height.
barCornerRadius	number	Specifies the taskbar corner rounding.
barFill	number	Specifies the taskbar occupation, in percent from 0 to 100.
handleWidth	number	Specifies the width of the taskbar drag control for start and end dates.
fontFamily	string	Specifies the font family for the application.
fontSize	string	Specifies the font size for the application.
barProgressColor	string	Specifies the taskbar progress fill color globally.
barProgressSelectedColor	string	Specifies the taskbar progress fill color globally when selected.
barBackgroundColor	string	Specifies the taskbar background fill color globally.
barBackgroundSelectedColor	string	Specifies the taskbar background fill color globally when selected.
arrowColor	string	Specifies the relationship arrow fill color.
arrowIndent	number	Specifies the relationship arrow right indent, in px.
todayColor	string	Specifies the current period column fill color.
TooltipContent	React.FC<{ task: Task; fontSize: string; fontFamily: string; }>;	Specifies the Tooltip view for selected taskbar.
TaskListHeader	React.FC<{ headerHeight: number; rowWidth: string; fontFamily: string; fontSize: string;}>;	Specifies the task list Header view
TaskListTable	React.FC<{ rowHeight: number; rowWidth: string; fontFamily: string; fontSize: string; locale: string; tasks: Task[]; selectedTaskId: string; setSelectedTask: (taskId: string) => void; }>;	Specifies the task list Table view

Task

Parameter Name	Type	Description
id*	string	Task id.
name*	string	Task display name.
type*	string	Task display type: task, milestone, project
start*	Date	Task start date.
end*	Date	Task end date.
progress*	number	Task progress. Sets in percent from 0 to 100.
assignees*	string[]	List of people assigned to the task
dependencies	string[]	Specifies the parent dependencies ids.
styles	object	Specifies the taskbar styling settings locally. Object is passed with the following attributes:
		- backgroundColor: String. Specifies the taskbar background fill color locally.
		- backgroundSelectedColor: String. Specifies the taskbar background fill color locally on select.
		- progressColor: String. Specifies the taskbar progress fill color locally.
		- progressSelectedColor: String. Specifies the taskbar progress fill color globally on select.
isDisabled	bool	Disables all action for current task.
fontSize	string	Specifies the taskbar font size locally.
project	string	Task project name
hideChildren	bool	Hide children items. Parameter works with project type only

*Required

License

MIT