Module: Gtk::AccessibleRange

Defined in:
(unknown)

Overview

This interface describes ranged controls, e.g. controls which have a single value within an allowed range and that can optionally be changed by the user.

This interface is expected to be implemented by controls using the following roles:

  • GTK_ACCESSIBLE_ROLE_METER
  • GTK_ACCESSIBLE_ROLE_PROGRESS_BAR
  • GTK_ACCESSIBLE_ROLE_SCROLLBAR
  • GTK_ACCESSIBLE_ROLE_SLIDER
  • GTK_ACCESSIBLE_ROLE_SPIN_BUTTON

If that is not the case, a warning will be issued at run time.

In addition to this interface, its implementers are expected to provide the correct values for the following properties:

  • GTK_ACCESSIBLE_PROPERTY_VALUE_MAX
  • GTK_ACCESSIBLE_PROPERTY_VALUE_MIN
  • GTK_ACCESSIBLE_PROPERTY_VALUE_NOW
  • GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT

Instance Method Summary collapse

Instance Method Details

#current_value=(value) ⇒ Boolean

Sets the current value of the accessible range.

This operation should behave similarly as if the user performed the action.

Parameters:

  • value (Float) —

    the value to set

Returns:

  • (Boolean) —

    true if the operation was performed, false otherwise