[ Previous |
Motif and CDE 2.1 Style Guide Reference
Value (Choice Type)
A value is a type of choice that allows the user to indicate whether a
value is set or unset (or in some circumstances, indeterminate). You can
present value choices in such controls as list boxes, radio buttons, and check
When to Use
RecommendedUse a value choice to allow a user to set or unset a value.
RequiredDo not change the text label of a value choice when it is set or unset.
RecommendedIf a menu contains a group of value choices that are mutually exclusive,
display unavailable emphasis on the choice that currently applies. Remove the
unavailable emphasis when the choice no longer applies.
RecommendedWhen the user toggles a value choice in a dialog or property window, do
not immediately apply the change. Apply the change when the user activates the
Apply or OK choice.
RecommendedWhen the user activates a value choice in a menu, immediately apply the
choice. If the change can cause some action within the application, it should
RecommendedWhen the user toggles a value choice in a primary window, immediately
apply the choice unless an Apply push button is provided, and propagate the
results of the change within the same viewing area. Also, determine if the
change should propagate to other viewing areas in the same or other primary
RecommendedIf it is risky to apply value choices to a viewing area, provide a sample
within the window that demonstrates the change that will occur when the
properties are applied. For example, instead of applying a font change to a
large document, display sample text with the chosen font and provide an Apply
push button that applies the selected font.
RecommendedAvoid placing value choices in menus. However, allow the user to place
value choices in menus as a customization option.
OptionalIf a value choice is labeled with a graphic rather than text, change the
graphic's appearance when the choice is set or unset.
RequiredGroup related value choices together. If value choices are placed in a
menu, use separators to separate groups of related choices.
RequiredIn a control that displays value choices, allow the user to clearly see
whether the value choice is set or unset.
RequiredIn a menu other than an option menu, display a graphic next to a value
choice's label to indicate its setting.
RequiredIf a value choice does not use a separate graphic to indicate its setting,
change the contents (only if it is a graphic) or visual aspects of the label
to indicate whether it is set or not.
Essential Related Topics
For more information, see the Action (Choice Type), Choice, Dialog
(Choice Type), and Emphasis (Cue) reference pages.
[ Previous |