[comp.sys.amiga] scrolling/proportional gadgets

MROBINSON@wash-vax.bbn.com (08/15/89)

I guess 1.4 is farther off than I had thought, so I'll add another comment to
the wishlist for 1.4.

General comment:  Commodore, please include a few demo programs (with source)
that show how to use the facilities Intuition provides for gadgets to do some
of the things that people want to use gadgets for, like using masks to make
rounded buttons, and making proportional gadgets for scrolling and selecting
colors.  My belief is that the more available these examples are, the more
people will use them, and demand them from developers.  I would think that
this simple act on Commodore's part may provide a good return in how self-
conscious Amiga developers are about how their applications look to a user.

Specific comment:  Has anyone else seen the OpenView scrollbars in action?
They are the easiest scrolling/proportional gadgets to use that I have ever
seen, and I would like to see them appear on Amigas (maybe in 1.4).  The
essentials that I like are these:  there are five places the user can click,
corresponding to the actions "all the way up", "up a unit (page)", "drag me
to where you want", "down a unit (page)", "all the way down".  The "all the
way" controls are at the end of the gadget.  The "up", "drag", and "down"
controls are bunched together on the bubble that shows where you are
proportionally, as it slides between the "all the way" controls.  Finally,
the mouse jumps with the bubble as it moves in response to the "up" and "down"
controls.

All of this combines to make using the gadget very easy.  You always manipulate
the bubble for moving short distances, and only have to go to the ends if you
want to move the bubble all the way to the end.  The controls are very
intuitive (certainly much more so than SunView scrollbars, which have got to
be some of the least useful UI components I've ever seen).  So, is there any
chance of something like this making it into Intuition 1.4?

--Max