Foundation classes for a basic GUI implementing simple widgets and events

Dependents:   TouchScreenGUIDemo

Reference to parent not initialized

Hi,

TouchScreenGUIDemo crashed for me while accessing the ContainerWidget. I tracked this back to the _parent reference in the Widget class not being initialized on creation. I've made a commit changing this. If you like, please pull.

Best regards elh

Foundation classes for a basic GUI implementing simple widgets and events. (Fork for custom changes.)