Richard Miller wrote:
Sorry, Richard.... it was regarding the latter (popup/pulldowns). What's
the disadvantage of using a pulldown menu with tabs to create
submenu's... as opposed to a cascade menu button?
None at all; in the modern engine they're completely different animals.
In the olden days, before menus could be drawn from the text of buttons,
one had to create stacks with buttons on them as menus. Yes, it was as
onerous and ugly as it sounds. ;)
To make submenus in such a system, we used cascade style menu buttons in
those menu stacks.
After menu buttons were modified to render OS-native menus from the
button's textual contents, using stacks as menus is now pretty much
useless for everything except drop-down galleries.
That would leave cascade style menus as mere detritus in the engine,
were it not for the fairly common convention in recent years of having
flyout menus, menus with a right-pointing triangle that work similarly
to popups but the menu appears at a specific location, at the top-right
of the control.
Using a cascade style menu for this would be wonderful, except for the
two shortcomings I noted (non-native appearance and the need to hold the
mouse button down).
The workaround now is to make a right-pointing arrow icon, assign it to
a button, make a hidden popup style button which has your menu items and
menupick handlers, and use the popup command to show that menu from the
visible control with the icon.
Ugh.
Not impossible, not really all that difficult, but requiring two
controls to get something we're so close to having perfectly with a
single control feels unclean. ;)
--
Richard Gaskin
Fourth World
Rev training and consulting: http://www.fourthworld.com
Webzine for Rev developers: http://www.revjournal.com
revJournal blog: http://revjournal.com/blog.irv
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