Gemini is a WPF framework designed specifically for building IDE-like applications. It is built on:

• AvalonDock
• Caliburn Micro
• MEF

Gemini allows you to build your WPF application by composing separate modules. This provides a nice way of separating out the code for each part of your application. For example, here is the (very simple) module used in the demo program:

[Export(typeof(IModule))]
public class Module : ModuleBase
{
	[Import]
	private IPropertyGrid _propertyGrid;

	public override void Initialize()
	{
		MainMenu.All
			.First(x => x.Name == "View")
			.Add(new MenuItem("Home", OpenHome));

		var homeViewModel = IoC.Get<HomeViewModel>();
		Shell.OpenDocument(homeViewModel);

		_propertyGrid.SelectedObject = homeViewModel;
	}

	private IEnumerable<IResult> OpenHome()
	{
		yield return Show.Document<HomeViewModel>();
	}
}

For full details, look at the demo program.

Gemini comes with three modules:

• An output pane
• A property grid pane
• A status bar

I've used Gemini on several of my own projects:

• Meshellator
• Rasterizr
• coming soon...

Much of the original ideas and code came from Rob Eisenberg, creator of the Caliburn Micro framework. I have extended and modified his code to integrate better with AvalonDock 2.0, which natively supports MVVM-style binding.