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Integrating and Extending BIRT by Iana Chatalbasheva, Tom Bondur, Jason Weathersby

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Chapter 10. Working with Chart Event Handlers

BIRT supports an event handler model specific to the Chart Engine. The model is similar to the model for standard BIRT report elements and supports both the Java and JavaScript environments. This chapter provides details on both environments. The Chart Engine also supports this event model when used independently from the BIRT Engine or a report design.

Chart events overview

A chart is a graphical representation of data. A chart event occurs before, during, or after the drawing of a chart. Table 10-1 lists the chart event handler methods and identifies when these methods are called.

Table 10-1 Chart event handler methods

The following sections describe how to implement the chart events based on ...

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