<dependency>
 <groupId>eu.dariolucia.jfx</groupId>
 <artifactId>eu.dariolucia.jfx.timeline</artifactId>
 <version>${timeline.version}</version>
</dependency>

This module contains an implementation of a timeline/Gantt chart for JavaFX. The widget supports the following features:

• Definition of several task item per task line, each with its own colour, start time, expected and actual durations;
• Grouping of task lines in flat groups and hierarchical groups;
• Projection of aggregated task item durations when groups are collapsed or always on;
• Handling of time overlaps among task items belowing to the same task line, dynamically rendered on separate lines;
• Time cursors and time intervals (in foreground and background);
• Time points with basic shapes and custom images (contributions from Shersula);
• Scrolling and zooming via mouse scroll;
• Single selection model for task items;
• Dynamic column sizing;
• Appearance fully customisable per task item, task lines and group of lines via inheritance;
• Usable programmatically and via FXML.

Screenshot

// Create timeline
Timeline tl = new Timeline();
// Add data defaults for testing
Instant currentTime = Instant.now();
tl.setMinTime(currentTime.minusSeconds(3600));
tl.setMaxTime(currentTime.plusSeconds(12800));
tl.setViewPortStart(currentTime);
tl.setViewPortDuration(1200);
// Add task lines
TaskLine theLine = new TaskLine("Task Line 1", "First task line");
// Add items to the task line
theLine.getItems().add(new TaskItem("Task 1", currentTime.plusSeconds(30), 98, 0));
theLine.getItems().add(new TaskItem("Task 2", currentTime.plusSeconds(130), 28, 0));
// Add the task line to the timeline
tl.getItems().add(theLine);
// Add to application and render

For optimisation reasons, the widget works with a time resolution in seconds. Sub-second resolution is not supported, i.e. times are truncated to seconds.