O1Library Docs
Fall 2023
Docs API

# EasyPanel

o1.gui.layout.EasyPanel
trait EasyPanel extends GridBagPanel, EasyLayout

The methods on this trait make it easier to place elements in a scala.swing.GridBagPanel.

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

## Attributes

Graph
Supertypes
  trait EasyLayout
  class GridBagPanel
  trait LayoutContainer
  class Panel
  trait Wrapper
  trait Container
  class Component
  trait UIElement
  trait Publisher
  trait Reactor
  trait Proxy
  class Object
  trait Matchable
  class Any
  Show all

## Members list

### Type members

#### Inherited classlikes

class Constraints(val peer: GridBagConstraints) extends Proxy

The type of component constraints for this container.

The type of component constraints for this container.

## Attributes

Inherited from:
  GridBagPanel
Supertypes
  trait Proxy
  class Object
  trait Matchable
  class Any

protected class Content extends BufferWrapper[Component]

## Attributes

Inherited from:
  Wrapper
Supertypes
  class BufferWrapper[Component]
  trait Buffer[Component]
  trait Shrinkable[Component]
  trait Growable[Component]
  trait Clearable
  trait Seq[Component]
  trait SeqOps[Component, Buffer, Buffer[Component]]
  trait Cloneable[Buffer[Component]]
  trait Cloneable
  trait Seq[Component]
  trait Equals
  trait SeqOps[Component, Buffer, Buffer[Component]]
  trait PartialFunction[Int, Component]
  trait Int => Component
  trait Iterable[Component]
  trait Iterable[Component]
  trait IterableFactoryDefaults[Component, Buffer]
  trait IterableOps[Component, Buffer, Buffer[Component]]
  trait IterableOnceOps[Component, Buffer, Buffer[Component]]
  trait IterableOnce[Component]
  class Object
  trait Matchable
  class Any
  Show all

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 constraintsFor(component: Component, xy: (Int, Int), size: (Int, Int), anchor: Anchor, fill: Fill, border: (Int, Int, Int, Int)): Constraints

#### 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 contents: Seq[Component]

The child components of this container.

The child components of this container.

## Attributes

Inherited from:
  Wrapper

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

Calculate a hash code value for the object.

Calculate 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 layout: Map[Component, Constraints]

A map of components to the associated layout constraints. Any element in this map is automatically added to the contents of this panel. Therefore, specifying the layout of a component via

A map of components to the associated layout constraints. Any element in this map is automatically added to the contents of this panel. Therefore, specifying the layout of a component via

layout(myComponent) = myConstraints

also ensures that myComponent is properly added to this container.

## Attributes

Inherited from:
  LayoutContainer

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 place(component: Component, xy: (Int, Int), size: (Int, Int), anchor: Anchor, fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeC(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeE(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeN(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeNE(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeNW(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeS(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeSE(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeSW(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

def placeW(component: Component, xy: (Int, Int), size: (Int, Int), fill: Fill, border: (Int, Int, Int, Int)): Unit

## Attributes

Inherited from:
  EasyLayout

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

#### Inherited fields

protected val _contents: Content

## Attributes

Inherited from:
  Wrapper

protected val listeners: RefSet[Reaction]

## Attributes

Inherited from:
  Publisher

lazy override val peer: JPanel

The underlying Swing peer.

The underlying Swing peer.

## Attributes

Inherited from:
  GridBagPanel

val reactions: Reactions

All reactions of this reactor.

All reactions of this reactor.

## Attributes

Inherited from:
  Reactor

### Implicits

#### Inherited implicits

implicit def pair2Constraints(p: (Int, Int)): Constraints

Convenient conversion from xy-coords given as pairs to grid bag constraints.

Convenient conversion from xy-coords given as pairs to grid bag constraints.

## Attributes

Inherited from:
  GridBagPanel