Micro$oft-style dragable, resizable, stackable menu/button bars.

[Miles Lane <miles amazon com>]

Hi,

One of the nice UI elements Micro$oft has come up with
is the menubar/buttonbar UI class that enables dragging,
resizing and stacking of menu/buttonbars. 

These bars were initially implemented and used in IE 4.0.
As soon as I saw them, I thought "that's how menu and
buttonbars should always work!"

Netscape has its expanding and contracting bars, but they 
aren't nearly as nice to use.  For example, you can't
stack and resize bars.  You can reorder them vertically,
but they always run the width of the window.  They can't
share a single row with another bar.  Micro$oft's bars
even allow a user to drag bars on a shared row to reorder
the bars in the row.

In IE and some of M$'s other software, clicking on the 
lower edge of a buttonbar and dragging the edge up or
down causes the text under the buttons to be displayed
or hidden.  I really like this feature.

This cannot be rocket science.  I am amazed that this
functionality isn't in Gnome already.  This is an area
where Gnome is running behind Micro$oft in usability.

Let's get this in and take another hunk out of M$'s
desktop usability lead.

	Miles