Directory: widgets/

The routines and classes in the widgets directory make creating an "object widget" easy. All that must be done is to create a subclass of MGwidObjectWidget, for example MGwidDemoObjectWidget:

 pro mgwiddemoobjectwidget__define
   compile_opt strictarr

   define = { MGwidDemoObjectWidget, inherits MGwidObjectWidget}
 end

The init method would typically call the parent init method, create/realize the widget hierarchy, and finally start XMANAGER:

 function mgwiddemoobjectwidget::init, _extra=e
   compile_opt strictarr

   if (~self->mgwidobjectwidget::init(_extra=e)) then return, 0

   self->create_widgets
   self->realize_widgets
   self->start_xmanager

   return, 1
 end

It is important that the create_widgets method store the top-level base's widget identifier in self.tlb and put self in the tlb's UVALUE:

 pro mgwiddemoobjectwidget::create_widgets
   compile_opt strictarr

   self.tlb = widget_base(uvalue=self)

   ; create rest of widget hierarchy
 end

Override handle_events to write event handlers:

 pro mgwiddemoobjectwidget::handle_events, event
   compile_opt strictarr

   uname = widget_info(event.id, /uname)

   ; do event handling...
 end

.pro files

mg_object_cleanup.pro: Generic cleanup for writing object widget programs.
mg_object_event_handler.pro: Generic event handler for writing object widget programs.
mgwidobjectwidget__define.pro: This is a base class to inherit from to create an object widget.

Personal library of Michael Galloy
Contact me if you have enhancement requests or bug fixes.

mglib

Personal IDL library for M. Galloy

Directory: widgets/

Contents

.pro files