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Motif and CDE 2.1 Style Guide Reference
Tool (Value Choice Type)
A tool is a choice in a value set that, when set, places the user in a mode
that limits or specializes the user's interaction with the application.
Figure 71. Tools in a Value Set.
When to Use
RequiredInclude tools in a value set to perform specific tasks in an application.
RequiredWhen the user selects a tool, do the following:
Change or augment the pointer to indicate which operation the user can
perform. For example, if the user chooses a line-drawing tool in a value set,
change the pointer to a line-drawing tool pointer in the applications viewing
Provide a tool within the value set to allow the user to return to a
neutral state, unless completing the activated choice automatically returns
the user to a neutral state. For example, if the user chooses a line-drawing
tool in a tool palette area and the pointer is not restored to the arrow
pointer after the line-drawing operation is complete, provide an arrow-pointer
choice on the palette area.
Display the pointer appropriate for the tool mode when the pointer is
within the area to which the tool applies.
RequiredWhen focus is on a tool, the default action, if any, is an expert action;
that is, one which is equivalent to using the tool in some special way. For
example, make the default action (such as, expert) for an eraser tool erase
the entire contents of the control to which the tool applies.
RecommendedWhen the user chooses a tool that displays a dialog window used to set
parameters for use of the tool, provide an expert action for the tool that
initiates the tool with the most frequently used set of parameters.
Essential Related Topics
For more information, see the Choice and Value Set (Control) reference
Supplemental Related Topics
For more information, see the Palette Area (Area) reference page.
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