how to zoom a graph using zest?

Question

hi, I am using RCP and ZEST to create an application to visualize graphs. My question is: is it possible to zoom a graph drawn on ZEST (any ZEST or RCP api or plug-in)?

Thanks in advance -rajit

Answer 1

The simplest solution is to create a ZoomContributionViewItem. This item can be added to Menumanagers (in theory to toolbarmanagers also, but there is a nasty null-pointer exception related in Zest 1.1).

The constructor needs an IZoomableWorkbenchPart, where you need to provide a single method that returns the graph viewer.

If you need something more specific, look at the code of the Zest ZoomContributionViewItem code, how they had implemented it.

Answer 2

Thanks.. your solution works..

br rajit