Is there a way to have a stacked sparkline widgetColumn in ExtJS?

Question

Ext.js has the Ext.sparkline.Bar class. Is it possible to make that bar chart stacked? I have implemented a cartesian as the widget for the widget column to achieve this effect, But it has led to very long load times (particularly when calling grid.reconfigure()). I'm wondering if a more lightweight version can be achieved via a sparkline.

The reason I'm thinking it may be possible is because of the stackedBarColor config in the Ext.sparkline.Bar class. Aside from that, I haven't been able to find anything in regards to implementing it.

Anyone have any idea?

Answer 1

If you look at the source for Ext.sparkline.Bar, do a CTRL+F, type: 'stacked'. You can follow the logic there. at the most basic level you can achieve a stacked bar chart by passing in an array of arrays into the values config: values: [[0,1,2,3,4,5],[0,1,2,3,4,5]]. Each array will be its own stack.