Learning the Dojo Toolkit

AA3SD > Using dojo

Letting website visitors markup, draw, and manipulate images has lots of interesting potential, but building building javascript applications for doing graphics and Ajax makes for lots of messy crossbrowser testing and support. In the past I have used Walter Zorn's Drag and Drop library on the client side, but I have recently started playing with the Dojo Toolkit, which had its 1.0.0 release on 2007 Nov 5. Much of the basics of how to use Dojo and its Dijit widget library is well documented in the Dojo Book, but the experimental graphics library dojox.gfx has much less extensive documentation outside of the code itself. These pages describe some of my forays into learning how to do fun things with dojox.gfx from the dojo 1.0.0 release.

• Drawing simple shapes
• Layering a shape over an image
• Drawing a draggable shape