class ComboBox[A] extends Component with Publisher

Let's the user make a selection from a list of predefined items. Visually, this is implemented as a button-like component with a pull-down menu.


  1. Component
  2. UIElement
  3. LazyPublisher
  4. Publisher
  5. Reactor
  6. Proxy
  7. AnyRef
  8. Any

Value Members

  1. var Mouse: mouse

  2. def background: Color

  3. def background_=(c: Color): Unit

  4. def border: Border

  5. def border_=(b: Border): Unit

  6. def bounds: Rectangle

  7. def cursor: Cursor

  8. def cursor_=(c: Cursor): Unit

  9. def deafTo(ps: Publisher*): Unit

    Installed reaction won't receive events from the given publisher anylonger

    Installed reaction won't receive events from the given publisher anylonger.

    definition classes: Reactor
  10. def displayable: Boolean

  11. def editable: Boolean

  12. def enabled: Boolean

  13. def enabled_=(b: Boolean): Unit

  14. def equals(that: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    definition classes: Proxy ⇐ AnyRef ⇐ Any
  15. def focusable: Boolean

  16. def focusable_=(b: Boolean): Unit

  17. def font: Font

  18. def font_=(f: Font): Unit

  19. def foreground: Color

  20. def foreground_=(c: Color): Unit

  21. def hasFocus: Boolean

  22. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: Proxy ⇐ AnyRef ⇐ Any
  23. def ignoreRepaint: Boolean

  24. def ignoreRepaint_=(b: Boolean): Unit

  25. var initP: JComponent

  26. def inputVerifier: (ComboBox.this.type) ⇒ Boolean

  27. def inputVerifier_=(v: (ComboBox.this.type) ⇒ Boolean): Unit

  28. object keys extends Publisher

  29. def listenTo(ps: Publisher*): Unit

    Listen to the given publisher as long as deafTo isn't called for them

    Listen to the given publisher as long as deafTo isn't called for them.

    definition classes: Reactor
  30. def locale: Locale

  31. def location: Point

  32. def locationOnScreen: Point

  33. def makeEditable()(editor: (ComboBox[A]) ⇒ Editor[A]): Unit

    Makes this combo box editable

    Makes this combo box editable. In order to do so, this combo needs an editor which is supplied by the implicit argument. For default editors, see ComboBox companion object.

  34. def maximumSize: Dimension

  35. def maximumSize_=(x: Dimension): Unit

  36. def minimumSize: Dimension

  37. def minimumSize_=(x: Dimension): Unit

  38. object mouse extends AnyRef

    Contains publishers for various mouse events

  39. def onFirstSubscribe(): Unit

  40. def onLastUnsubscribe(): Unit

  41. def opaque: Boolean

  42. def opaque_=(b: Boolean): Unit

  43. def paint(g: Graphics2D): Unit

  44. var peer: JComboBox

    The underlying Swing peer

    The underlying Swing peer.

  45. def preferredSize: Dimension

  46. def preferredSize_=(xy: (Int, Int)): Unit

  47. def preferredSize_=(x: Dimension): Unit

  48. def prototypeDisplayValue: Option[A]

  49. def prototypeDisplayValue_=(v: Option[A]): Unit

  50. def publish(e: Event): Unit

    Notify all registered reactions

    Notify all registered reactions.

    definition classes: Publisher
  51. val reactions: Reactions

    All reactions of this reactor

    All reactions of this reactor.

    definition classes: Reactor
  52. def renderer: Renderer[A]

    Sets the renderer for this combo box's items

    Sets the renderer for this combo box's items. Index -1 is passed to the renderer for the selected item (not in the pull-down menu).

    The underlying combo box renders all items in a ListView (both, in the pull-down menu as well as in the box itself), hence the ListView.Renderer.

    Note that the UI peer of a combo box usually changes the colors of the component to its own defaults _after_ the renderer has been configured. That's Swing's principle of most suprise.

  53. def renderer_=(r: Renderer[A]): Unit

  54. def repaint(rect: Rectangle): Unit

  55. def repaint(): Unit

  56. def requestFocus(): Unit

  57. def requestFocusInWindow(): Boolean

  58. def revalidate(): Unit

  59. object selection extends Publisher

  60. def self: Component

  61. def showing: Boolean

  62. def size: Dimension

  63. def size_=(xy: (Int, Int)): Unit

  64. def size_=(dim: Dimension): Unit

  65. def subscribe(listener: PartialFunction[Event, Unit]): Unit

  66. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: ComponentProxy ⇐ AnyRef ⇐ Any
  67. def toolkit: Toolkit

  68. def tooltip: String

  69. def tooltip_=(t: String): Unit

  70. def unsubscribe(listener: PartialFunction[Event, Unit]): Unit

  71. def visible: Boolean

  72. def visible_=(b: Boolean): Unit

  73. def xLayoutAlignment: Double

    Used by certain layout managers, e

    Used by certain layout managers, e.g., BoxLayout or OverlayLayout to align components relative to each other.

    definition classes: Component
  74. def xLayoutAlignment_=(x: Double): Unit

  75. def yLayoutAlignment: Double

  76. def yLayoutAlignment_=(y: Double): Unit

Instance constructors

  1. new ComboBox(items: Seq[A])

  2. new ComboBox()