Football4 Docs
Fall 2026
API

# MatchPanel

o1.football4.gui.MatchPanel
class MatchPanel(val `isFinished`: Boolean) extends Component

A `MatchPanel` is a GUI component that displays the current status of a single `Match`. It uses one of two color schemes, depending on whether the displayed match has finished or not.

NOTE TO STUDENTS: In this course, you don’t need to understand how this class works or can be used.

## Attributes

Graph
Supertypes
  class Component
  trait UIElement
  trait Publisher
  trait Reactor
  trait Proxy
  class Object
  trait Matchable
  class Any
  Show all

## Members list

### Type members

#### Inherited classlikes

object keys extends Publisher

## Attributes

Inherited from:
  Component
Supertypes
  trait Publisher
  trait Reactor
  class Object
  trait Matchable
  class Any

object mouse

Contains publishers for various mouse events. They are separated for efficiency reasons.

Contains publishers for various mouse events. They are separated for efficiency reasons.

## Attributes

Inherited from:
  Component
Supertypes
  class Object
  trait Matchable
  class Any

### Value members

#### Concrete methods

def game: Option[Match]
def game_=(`shown`: Match): Unit
override def paintComponent(`g`: Graphics2D): Unit

For custom painting, users should usually override this method.

For custom painting, users should usually override this method.

## Attributes

Definition Classes
  Component

#### Inherited methods

def background: Color

## Attributes

Inherited from:
  UIElement

def background_=(c: Color): Unit

## Attributes

Inherited from:
  UIElement

def border: Border

## Attributes

Inherited from:
  Component

def border_=(b: Border): Unit

## Attributes

Inherited from:
  Component

def bounds: Rectangle

## Attributes

Inherited from:
  UIElement

def componentOrientation: ComponentOrientation

## Attributes

Inherited from:
  UIElement

def componentOrientation_=(x: ComponentOrientation): Unit

## Attributes

Inherited from:
  UIElement

def cursor: Cursor

## Attributes

Inherited from:
  UIElement

def cursor_=(c: Cursor): Unit

## Attributes

Inherited from:
  UIElement

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.

## Attributes

Inherited from:
  Reactor

def displayable: Boolean

## Attributes

Inherited from:
  UIElement

def enabled: Boolean

## Attributes

Inherited from:
  Component

def enabled_=(b: Boolean): Unit

## Attributes

Inherited from:
  Component

override def equals(that: Any): Boolean

Compares the receiver object (`this`) with the argument object (`that`) for equivalence.

Compares the receiver object (`this`) with the argument object (`that`) for equivalence.

Any implementation of this method should be 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 `Any` 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 usually necessary to override `hashCode` to ensure that objects which are "equal" (`o1.equals(o2)` returns `true`) hash to the same scala.Int. (`o1.hashCode.equals(o2.hashCode)`).

## Parameters

that

  the object to compare against this object for equality.

## Attributes

Returns

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

Definition Classes
  Proxy -> Any
Inherited from:
  Proxy

def focusable: Boolean

## Attributes

Inherited from:
  Component

def focusable_=(b: Boolean): Unit

## Attributes

Inherited from:
  Component

def font: Font

## Attributes

Inherited from:
  UIElement

def font_=(f: Font): Unit

## Attributes

Inherited from:
  UIElement

def foreground: Color

## Attributes

Inherited from:
  UIElement

def foreground_=(c: Color): Unit

## Attributes

Inherited from:
  UIElement

def hasFocus: Boolean

## Attributes

Inherited from:
  Component

override def hashCode(): Int

Calculates a hash code value for the object.

Calculates 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.

## Attributes

Returns

  the hash code value for this object.

Definition Classes
  Proxy -> Any
Inherited from:
  Proxy

def ignoreRepaint: Boolean

## Attributes

Inherited from:
  UIElement

def ignoreRepaint_=(b: Boolean): Unit

## Attributes

Inherited from:
  UIElement

def inputVerifier: Component => Boolean

## Attributes

Inherited from:
  Component

def inputVerifier_=(v: Component => Boolean): Unit

## Attributes

Inherited from:
  Component

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.

## Attributes

Inherited from:
  Reactor

def locale: Locale

## Attributes

Inherited from:
  UIElement

def location: Point

## Attributes

Inherited from:
  UIElement

def locationOnScreen: Point

## Attributes

Inherited from:
  UIElement

def maximumSize: Dimension

## Attributes

Inherited from:
  UIElement

def maximumSize_=(x: Dimension): Unit

## Attributes

Inherited from:
  UIElement

def minimumSize: Dimension

## Attributes

Inherited from:
  UIElement

def minimumSize_=(x: Dimension): Unit

## Attributes

Inherited from:
  UIElement

def name: String

## Attributes

Inherited from:
  Component

def name_=(s: String): Unit

## Attributes

Inherited from:
  Component

def opaque: Boolean

## Attributes

Inherited from:
  Component

def opaque_=(b: Boolean): Unit

## Attributes

Inherited from:
  Component

def paint(g: Graphics2D): Unit

## Attributes

Inherited from:
  Component

def preferredSize: Dimension

## Attributes

Inherited from:
  UIElement

def preferredSize_=(x: Dimension): Unit

## Attributes

Inherited from:
  UIElement

def publish(e: Event): Unit

Notify all registered reactions.

Notify all registered reactions.

## Attributes

Inherited from:
  Publisher

def repaint(rect: Rectangle): Unit

## Attributes

Inherited from:
  UIElement

def repaint(): Unit

## Attributes

Inherited from:
  UIElement

def requestFocus(): Unit

## Attributes

Inherited from:
  Component

def requestFocusInWindow(): Boolean

## Attributes

Inherited from:
  Component

def revalidate(): Unit

## Attributes

Inherited from:
  Component

def self: Any

## Attributes

Inherited from:
  UIElement

def showing: Boolean

## Attributes

Inherited from:
  UIElement

def size: Dimension

## Attributes

Inherited from:
  UIElement

override def subscribe(listener: Reaction): Unit

## Attributes

Definition Classes
  LazyPublisher -> Publisher
Inherited from:
  LazyPublisher (hidden)

override def toString: String

Returns a string representation of the object.

Returns a string representation of the object.

The default representation is platform dependent.

## Attributes

Returns

  a string representation of the object.

Definition Classes
  Component -> Proxy -> Any
Inherited from:
  Component

def toolkit: Toolkit

## Attributes

Inherited from:
  UIElement

def tooltip: String

## Attributes

Inherited from:
  Component

def tooltip_=(t: String): Unit

## Attributes

Inherited from:
  Component

override def unsubscribe(listener: Reaction): Unit

## Attributes

Definition Classes
  LazyPublisher -> Publisher
Inherited from:
  LazyPublisher (hidden)

def validate(): Unit

## Attributes

Inherited from:
  UIElement

def visible: Boolean

## Attributes

Inherited from:
  UIElement

def visible_=(b: Boolean): Unit

## Attributes

Inherited from:
  UIElement

def xLayoutAlignment: Double

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

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

## Attributes

Inherited from:
  Component

def xLayoutAlignment_=(x: Double): Unit

## Attributes

Inherited from:
  Component

def yLayoutAlignment: Double

## Attributes

Inherited from:
  Component

def yLayoutAlignment_=(y: Double): Unit

## Attributes

Inherited from:
  Component

#### Concrete fields

val isFinished: Boolean

#### Inherited fields

protected val listeners: RefSet[Reaction]

## Attributes

Inherited from:
  Publisher

lazy override val peer: JComponent

The underlying Swing peer.

The underlying Swing peer.

## Attributes

Inherited from:
  Component

val reactions: Reactions

All reactions of this reactor.

All reactions of this reactor.

## Attributes

Inherited from:
  Reactor