javax.sound.sampled

Class EnumControl


  • public abstract class EnumControl
    extends Control
    A EnumControl provides control over a set of discrete possible values, each represented by an object. In a graphical user interface, such a control might be represented by a set of buttons, each of which chooses one value or setting. For example, a reverb control might provide several preset reverberation settings, instead of providing continuously adjustable parameters of the sort that would be represented by FloatControl objects.

    Controls that provide a choice between only two settings can often be implemented instead as a BooleanControl, and controls that provide a set of values along some quantifiable dimension might be implemented instead as a FloatControl with a coarse resolution. However, a key feature of EnumControl is that the returned values are arbitrary objects, rather than numerical or boolean values. This means that each returned object can provide further information. As an example, the settings of a REVERB control are instances of ReverbType that can be queried for the parameter values used for each setting.

    Since:
    1.3
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class and Description
      static class  EnumControl.Type
      An instance of the EnumControl.Type inner class identifies one kind of enumerated control.

        

    • Constructor Summary

      Constructors 
      Modifier Constructor and Description
      protected EnumControl(EnumControl.Type type, Object[] values, Object value)
      Constructs a new enumerated control object with the given parameters.

        

    • Constructor Detail

      • EnumControl

        protected EnumControl(EnumControl.Type type,
                   Object[] values,
                   Object value)
        Constructs a new enumerated control object with the given parameters.
        Parameters:
        type - the type of control represented this enumerated control object
        values - the set of possible values for the control
        value - the initial control value
    • Method Detail

      • setValue

        public void setValue(Object value)
        Sets the current value for the control. The default implementation simply sets the value as indicated. If the value indicated is not supported, an IllegalArgumentException is thrown. Some controls require that their line be open before they can be affected by setting a value.
        Parameters:
        value - the desired new value
        Throws:
        IllegalArgumentException - if the value indicated does not fall within the allowable range
      • getValue

        public Object getValue()
        Obtains this control's current value.
        Returns:
        the current value
      • getValues

        public Object[] getValues()
        Returns the set of possible values for this control.
        Returns:
        the set of possible values
      • toString

        public String toString()
        Provides a string representation of the control.
        Overrides:
        toString in class Control
        Returns:
        a string description

Traduction non disponible

Les API Java ne sont pas encore traduites en français sur l'infobrol. Seule la version anglaise est disponible pour l'instant.

Document créé le 31/08/2006, dernière modification le 04/03/2020
Source du document imprimé : https://www.gaudry.be/java-api-rf-javax/sound/sampled/EnumControl.html

L'infobrol est un site personnel dont le contenu n'engage que moi. Le texte est mis à disposition sous licence CreativeCommons(BY-NC-SA). Plus d'info sur les conditions d'utilisation et sur l'auteur.

Références

  1. Consulter le document html Langue du document :fr Manuel PHP : https://docs.oracle.com, EnumControl

Ces références et liens indiquent des documents consultés lors de la rédaction de cette page, ou qui peuvent apporter un complément d'information, mais les auteurs de ces sources ne peuvent être tenus responsables du contenu de cette page.
L'auteur de ce site est seul responsable de la manière dont sont présentés ici les différents concepts, et des libertés qui sont prises avec les ouvrages de référence. N'oubliez pas que vous devez croiser les informations de sources multiples afin de diminuer les risques d'erreurs.

Table des matières Haut