HighCharts-G*t consists of a library for adapting Highcharts-JS charts inside:
- GWT framework (it is the HighCharts-GwT library)
- Ext-GWT (Gxt) framework (it is the HighCharts-GxT library)
It supports (among other features):
- a multitude of chart types (e.g. histograms, pies, lines, scatter charts, etc.) that can be easily mixed together;
- the export to most common vectorial and raster formats (PDF, SVG, JPEG, PNG);
- datetime axis. Provides facilities for managing date ranges and natively support TimeSeries charts;
- dynamic manipulation of charts. You can add, remove and modify series, axes or points at run-time in a fast and painless way.
As stated in Ext-GWT web site:
So your question should be: "why you need to add support for charts in a library that is already supporting them?".
Converging into HighCharts-GXT
Now these two worlds converge in HighCharts-GXT.
Where can you find me?
You can get the latest releases from SourceForge Official Project Page.