Support for multiple images, from a predefined list. Am now going to try and add support for adding/removing images at runtime.

Simplified FilePath validation - it no longer searches for files with suffixes, as it's just too difficult. Spin control widgets now always have minval and maxval specified, as if they're left out, they default to (0,100).

Various fixes and tweaks. wx.Slider does not support floating point numbers, so I made a hacky subclass which does. Fixed none/'' handling for strings. Fixed file suffix testing for FilePath properties.

Aaargh. Have been banging my head against wx.GridBagSizer all day. I don't think it works properly. Replacing everything with BoxSizers.

In process of porting to wx. Build.py is more or less complete, but needs testing and commennting. Widgets.py is a work in progress. Added default values for String and Number properties.

Various bug fixes, including file path suffix support. Added an isValid method to PropertyValue, too.

PropertyValue object needs to be passed to widget create functions, for lists to be properly supported

At the stage where a dummy application runs and throws errors. Need to review comments in build.by, and fix a bunch of broken stuff.

Updated widgets/widgets_list to work with new design. Have not yet updated Choice widget code. Nothing is tested, everything is probably broken.

Got rid of lastValue/revert functionality. Changed the structure of validation/notification so that programmatic notification is a bit safer, and should not result in infinitely recursive callbacks. Now, whenever a property value changes, the HasProperties instance is notified; it then forces validation/notification for all other properties. This is done because the validity of one property may be dependent upon the value of another. Also, added ability in build.py for buttons to be added to interface.

Various structural changes, providing better support for list properties. Property types are now defined in a separate module.

The getTkVar method now returns TkVarProxy objects, rather than Tkinter control variables. This is so listeners can be attached to said TkVarProxies, rather than to the parent Property objects.

Changed property listener callback signature. Added ability to register a listener to either a property, or to an individual TkVarProxy. Comments and cosmetic changes to properties.py.

Widget background colour is changed when an invalid value is entered. Functionality is currently broken for list properties.

Specific ValueError for properties.Int/Double casting errors; format string and increment explicitly set on Number Spinboxes, in widgets.py

Changed validation function signatures a bit. Now, a custom validation function may be passed in when a PropertyBase object is constructed. This custom function is passed the HasProperties instance, and the new value, so it is able to use the values of all properties to validate property in question. Other minor tweaks to the properties module.

Tweaks, fixes and updates to list implementation. Basic GUI functionality is working, although I have not tested it much. In particular, I haven't tested the ability to add/remove items from the list. Still in designing phase, really.

Changed the way that validation works. PropertyBase objects now have a validate() method which, when called, will raise a ValueError for invalid values.  The tkprop module now defines custom Tkinter.*Var classes which, when their set method is called, will call the validate() method  of their containing PropertyBase object. Validation is set up in the tkpropwidget module, and works nicely for all property types (so far).