Gui Frameworks

So far, I haven't seen a good overview and comparison of the architectural ideas manifested in GUI frameworks.

Questions

How are UIs specified?
How are widgets arranged on the screen?
How are the UI and the application model kept in sync?
How are actions triggered from the UI?

See UserInterfacePatterns, GraphicsPatterns

Interesting Candidates

CleanObjectIo? (see CleanLanguage)
CommonLispInterfaceManager? (CLIM)
DylanUserInterfaceManager? (DUIM)
EtPlusPlus
InterViews
JavaSwing
OpenStep ApplicationKit?
various Smalltalk frameworks
WxWidgets
MagicUserInterface?
GtkPlus
EiffelGrape?
EiffelFenestra?
VCL (for the DelphiLanguage)
Qt

And of course .NET WinForms?

--MichaelSchuerig

MorphicInterface

In the beginning there was ModelViewController. Then there was InterViews and EtPlusPlus. Then a few of those guys got together with some others and came up with DesignPatterns to explain what they had learned about GuiFrameworks.

TableOrientedProgramming GUI framework info: http://geocities.com/tablizer/guitable.htm

Although, "strict" relational may be insufficient to handle varying widget attributes. A MultiParadigmDatabase may better handle such attributes. NonOopGuiMethodologies also discusses some possibilities.

Comprehensive listing of GUI Toolkits and Frameworks with an emphasis on FreeSoftware: http://www.free-soft.org/guitool/