gumbo.interact
Interface InteractorFlag

All Known Implementing Classes:

ActionFlag, ControlFlag, SelectFlag, StatusFlag

public interface InteractorFlag

A marker interface used by the system for standard interaction flags used in InteractorState. Although any object can be used as a state flag (see StateSet), an InteractorFlag is recognized and handled by the default InteractorPolicy and feedback adapters (ActionSingleAdapter, ControlAdapter, etc.).

Standard interaction flags are grouped according to interactor role and interaction semantic level. Interactors can take the form of control widgets, dedicated to interactive control, or in-scene shapes, which present data but can also be used as targets for interactive control (e.g. slide, rotate, edit, delete). Note that state flags are used both to define state, as in a state value, and to specify state, as in a trigger condition.

• Action describes the low-level ephemeral interaction between a control input (mouse, keyboard, system) and an interactor, such as a control or data object. Ex: "mouse over", "keyboard focus", "tooltip identification".
• Control is similar to action but specifically involves control targets. Ex: "control armed", "control fired".
• Status describes the medium-level usability of the interactor, typically as a control. Ex: "control disabled", "control discommended".
• Selection describes the high-level designation of an interactor as a group member for special interaction or presentation, by the user or the system. Selection flags and groups are typically subdivided into "control targets" and "aspect members". Ex: "rotation control target", "graph path member".

Version:

$Revision: 1.1 $

Author:

Jon Barrilleaux (jonb@jmbaai.com) of JMB and Associates Inc.