scala.swing

Component

abstract class Component extends UIElement

Base class for all UI elements that can be displayed in a window. Components are publishers that fire the following event classes: ComponentEvent, FocusEvent, FontChanged, ForegroundChanged, BackgroundChanged.

Source
Component.scala
Note

[Java Swing] Unlike in Java Swing, not all components are also containers.

See also

http://java.sun.com/products/jfc/tsc/articles/painting/ for the component painting mechanism

,

javax.swing.JComponent

Linear Supertypes
UIElement, LazyPublisher, Publisher, Reactor, Proxy, AnyRef, Any
Known Subclasses
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
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  1. Component
  2. UIElement
  3. LazyPublisher
  4. Publisher
  5. Reactor
  6. Proxy
  7. AnyRef
  8. Any
Visibility
  1. Public
  2. All

Instance Constructors

  1. new Component()

Type Members

  1. trait SuperMixin extends JComponent

    This trait is used to redirect certain calls from the peer to the wrapper and back.

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Definition Classes
    Any
  3. final def ##(): Int

    Equivalent to x.hashCode except for boxed numeric types and null.

    Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

    returns

    a hash value consistent with ==

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality. The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Cast the receiver object to be of type T0.

    Cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

    returns

    the receiver object.

    Definition Classes
    Any
    Exceptions thrown
    ClassCastException

    if the receiver object is not an instance of the erasure of type T0.

  7. def background: Color

    Definition Classes
    UIElement
  8. def background_=(c: Color): Unit

    Definition Classes
    UIElement
  9. def border: Border

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

  11. def bounds: Rectangle

    Definition Classes
    UIElement
  12. def clone(): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
    Note

    not specified by SLS as a member of AnyRef

  13. def cursor: Cursor

    Definition Classes
    UIElement
  14. def cursor_=(c: Cursor): Unit

    Definition Classes
    UIElement
  15. 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
  16. def displayable: Boolean

    Definition Classes
    UIElement
  17. def enabled: Boolean

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

  19. final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

    • It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
    • For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
    • null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  20. def equals(that: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to eq.

    See also equals in Any.

    that

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    Proxy → AnyRef → Any
  21. def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
    Note

    not specified by SLS as a member of AnyRef

  22. def focusable: Boolean

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

  24. def font: Font

    Definition Classes
    UIElement
  25. def font_=(f: Font): Unit

    Definition Classes
    UIElement
  26. def foreground: Color

    Definition Classes
    UIElement
  27. def foreground_=(c: Color): Unit

    Definition Classes
    UIElement
  28. final def getClass(): Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    Definition Classes
    AnyRef → Any
    Note

    not specified by SLS as a member of AnyRef

  29. def hasFocus: Boolean

  30. def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in Any.

    returns

    the hash code value for this object.

    Definition Classes
    Proxy → AnyRef → Any
  31. def ignoreRepaint: Boolean

    Definition Classes
    UIElement
  32. def ignoreRepaint_=(b: Boolean): Unit

    Definition Classes
    UIElement
  33. var initP: JComponent

  34. def inputVerifier: (Component) ⇒ Boolean

  35. def inputVerifier_=(v: (Component) ⇒ Boolean): Unit

  36. final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Definition Classes
    Any
  37. object keys extends Publisher

  38. 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
  39. val listeners: RefSet[Reaction] { val underlying: scala.collection.mutable.HashSet[scala.ref.Reference[scala.swing.Reactions.Reaction]] }

    Attributes
    protected
    Definition Classes
    Publisher
  40. def locale: Locale

    Definition Classes
    UIElement
  41. def location: Point

    Definition Classes
    UIElement
  42. def locationOnScreen: Point

    Definition Classes
    UIElement
  43. def maximumSize: Dimension

    Definition Classes
    UIElement
  44. def maximumSize_=(x: Dimension): Unit

    Definition Classes
    UIElement
  45. def minimumSize: Dimension

    Definition Classes
    UIElement
  46. def minimumSize_=(x: Dimension): Unit

    Definition Classes
    UIElement
  47. object mouse extends AnyRef

    Contains publishers for various mouse events.

  48. def name: String

  49. def name_=(s: String): Unit

  50. final def ne(arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  51. final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  52. final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  53. def onFirstSubscribe(): Unit

    Attributes
    protected
    Definition Classes
    ComponentUIElement → LazyPublisher
  54. def onLastUnsubscribe(): Unit

    Attributes
    protected
    Definition Classes
    UIElement → LazyPublisher
  55. def opaque: Boolean

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

  57. def paint(g: Graphics2D): Unit

  58. def paintBorder(g: Graphics2D): Unit

    Attributes
    protected
  59. def paintChildren(g: Graphics2D): Unit

    Attributes
    protected
  60. def paintComponent(g: Graphics2D): Unit

    For custom painting, users should usually override this method.

    For custom painting, users should usually override this method.

    Attributes
    protected
  61. lazy val peer: JComponent

    Definition Classes
    ComponentUIElement
  62. def preferredSize: Dimension

    Definition Classes
    UIElement
  63. def preferredSize_=(x: Dimension): Unit

    Definition Classes
    UIElement
  64. def publish(e: Event): Unit

    Notify all registered reactions.

    Notify all registered reactions.

    Definition Classes
    Publisher
  65. val reactions: Reactions

    All reactions of this reactor.

    All reactions of this reactor.

    Definition Classes
    Reactor
  66. def repaint(rect: Rectangle): Unit

    Definition Classes
    UIElement
  67. def repaint(): Unit

    Definition Classes
    UIElement
  68. def requestFocus(): Unit

  69. def requestFocusInWindow(): Boolean

  70. def revalidate(): Unit

  71. def self: Component

    Definition Classes
    UIElementProxy
  72. def showing: Boolean

    Definition Classes
    UIElement
  73. def size: Dimension

    Definition Classes
    UIElement
  74. def subscribe(listener: Reaction): Unit

    Definition Classes
    LazyPublisher → Publisher
  75. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  76. def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Definition Classes
    ComponentProxy → AnyRef → Any
  77. def toolkit: Toolkit

    Definition Classes
    UIElement
  78. def tooltip: String

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

  80. def unsubscribe(listener: Reaction): Unit

    Definition Classes
    LazyPublisher → Publisher
  81. def visible: Boolean

    Definition Classes
    UIElement
  82. def visible_=(b: Boolean): Unit

    Definition Classes
    UIElement
  83. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  84. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  85. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  86. 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.

  87. def xLayoutAlignment_=(x: Double): Unit

  88. def yLayoutAlignment: Double

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

Inherited from UIElement

Inherited from LazyPublisher

Inherited from Publisher

Inherited from Reactor

Inherited from Proxy

Inherited from AnyRef

Inherited from Any