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OpenPyro is an Open Source pure AS3 framework for creating RIA’s released under the MIT license. OpenPyro draws a lot of inspiration from Flex but aims to be more expressive and easier to extend as well as have a smaller filesize and memory footprint.

Motivation:

OpenPyro started from the frustration that we experienced when starting with a new Flash project and making the hard choice between starting a Flex or or a pure Actionscript project. While choosing Flex would get us started really fast, halfway through the project we would struggle to extend the core architecture for some very specific (often visual design driven) functionality. Moreover as we started to get involved in smaller widgets that were embedded on html pages, the filesize of Flex started becoming more unacceptable. On the other hand, choosing a pure Actionscript projects promised complete control and guaranteed smaller filesizes but robbed us of the awesome functionality that Flex had, such as percent based sizing, collections, etc.

• Development Themes

Examples

• Your First OpenPyro App
• Simple Layout Examples
• Creating Simple Lists
• Creating ComboBoxes
• Creating HDividedBoxes

• Sample Application:PhotoViewer

Deeper into OpenPyro

• Understanding the OpenPyro measurement system
• Layouts
• Deeper into Virtualized Lists
• Chaining

Proposals

• Using Anchors for positioning
• Groups for layouts

Miscellaneous

• Getting started with Git