Client-side GChart is a pure-GWT client-side charting solution. It does not require browser plugins, external JavaScript, or server round-trips. The package supports bar, line, and pie charts, custom ticks, left and right y axes, grid-lines, annotated data points, pop-ups, click events, and more. License: The Apache License 2.0 Changes:
GChart now tracks mouse activities over the chart, and selects points, displays pop-ups, and fires off click events accordingly. The updated live demo illustrates all of these new features.