can Ext JS do snap-to-grid for drag/drop/resize UI?

Currently planning for a time-line application. Each elements on the time line will need to be resizable and draggable with a snap-to-grid positioning similar to jQuery UI's

http://jqueryui.com/demos/draggable/#snap-to

http://jqueryui.com/demos/resizable/#snap-to-grid (the snap to 20x20 kinda thing)

Is 开发者_如何学运维this feature available with Ext JS? Been googling around without any results. Can anyone point me to some examples please?

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You may get some inspiration from http://ext.ensible.com/deploy/dev/examples/calendar/custom-views.html

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