O1Library Docs
Fall 2023
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This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.
This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.
O1Library Docs/o1/o1.gui/o1.gui.layout/EasyLayout

EasyLayout

o1.gui.layout.EasyLayout
trait EasyLayout extends LayoutContainer

The methods on this trait make it easier to place elements in a Swing container.

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

Attributes

Supertypes
trait Wrapper
trait Container
trait UIElement
trait Publisher
trait Reactor
trait Proxy
class Object
trait Matchable
class Any
Show all
Known subtypes
trait EasyPanel

Members list

Visibility
  • public
  • protected
Inherited Not inherited +6
  • Not inherited
  • LayoutContainer
  • LazyPublisher
  • Proxy
  • Publisher
  • Reactor
  • UIElement
  • Wrapper
Keywords
  • no keywords
  • override

Type members

Inherited classlikes

protected class Content extends BufferWrapper[Component]

Inherited types

type Constraints <: AnyRef

The type of component constraints for this container.

The type of component constraints for this container.

Inherited from:
LayoutContainer

Value members

Abstract methods

Concrete methods

Inherited methods

protected def add(comp: Component, c: Constraints): Unit

Adds a component with the given constraints to the underlying layout manager and the component peer. This method needs to interact properly with method constraintsFor, i.e., it might need to remove previously held components in order to maintain layout consistency. See BorderPanel for an example.

Adds a component with the given constraints to the underlying layout manager and the component peer. This method needs to interact properly with method constraintsFor, i.e., it might need to remove previously held components in order to maintain layout consistency. See BorderPanel for an example.

Inherited from:
LayoutContainer
protected def areValid(c: Constraints): (Boolean, String)

Checks whether the given constraints are valid. Additionally returns an error string that is only fetched if the constraints aren't valid.

Checks whether the given constraints are valid. Additionally returns an error string that is only fetched if the constraints aren't valid.

Inherited from:
LayoutContainer
def background: Color
Inherited from:
UIElement
def background_=(c: Color): Unit
Inherited from:
UIElement
def bounds: Rectangle
Inherited from:
UIElement
def componentOrientation: ComponentOrientation
Inherited from:
UIElement
def componentOrientation_=(x: ComponentOrientation): Unit
Inherited from:
UIElement
protected def constraintsFor(c: Component): Constraints

Obtains the constraints for the given component from the underlying Swing layout manager.

Obtains the constraints for the given component from the underlying Swing layout manager.

Inherited from:
LayoutContainer
def contents: Seq[Component]

The child components of this container.

The child components of this container.

Inherited from:
Wrapper
def cursor: Cursor
Inherited from:
UIElement
def cursor_=(c: Cursor): Unit
Inherited from:
UIElement
def displayable: Boolean
Inherited from:
UIElement
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 font: Font
Inherited from:
UIElement
def font_=(f: Font): Unit
Inherited from:
UIElement
def foreground: Color
Inherited from:
UIElement
def foreground_=(c: Color): Unit
Inherited from:
UIElement
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.

Returns

the hash code value for this object.

Definition Classes
Proxy -> Any
Inherited from:
Proxy
def ignoreRepaint: Boolean
Inherited from:
UIElement
def ignoreRepaint_=(b: Boolean): Unit
Inherited from:
UIElement
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.

Inherited from:
LayoutContainer
def locale: Locale
Inherited from:
UIElement
def location: Point
Inherited from:
UIElement
def locationOnScreen: Point
Inherited from:
UIElement
def maximumSize: Dimension
Inherited from:
UIElement
def maximumSize_=(x: Dimension): Unit
Inherited from:
UIElement
def minimumSize: Dimension
Inherited from:
UIElement
def minimumSize_=(x: Dimension): Unit
Inherited from:
UIElement
override def peer: JComponent

The underlying Swing peer.

The underlying Swing peer.

Definition Classes
Inherited from:
Wrapper
def preferredSize: Dimension
Inherited from:
UIElement
def preferredSize_=(x: Dimension): Unit
Inherited from:
UIElement
def publish(e: Event): Unit

Notify all registered reactions.

Notify all registered reactions.

Inherited from:
Publisher
def repaint(rect: Rectangle): Unit
Inherited from:
UIElement
def repaint(): Unit
Inherited from:
UIElement
def self: Any
Inherited from:
UIElement
def showing: Boolean
Inherited from:
UIElement
def size: Dimension
Inherited from:
UIElement
override def subscribe(listener: Reaction): Unit
Definition Classes
override def toString(): String

Returns a string representation of the object.

Returns a string representation of the object.

The default representation is platform dependent.

Returns

a string representation of the object.

Definition Classes
Proxy -> Any
Inherited from:
Proxy
def toolkit: Toolkit
Inherited from:
UIElement
override def unsubscribe(listener: Reaction): Unit
Definition Classes
def validate(): Unit
Inherited from:
UIElement
def visible: Boolean
Inherited from:
UIElement
def visible_=(b: Boolean): Unit
Inherited from:
UIElement

Inherited fields

protected val _contents: Content
Inherited from:
Wrapper
protected val listeners: RefSet[Reaction]
Inherited from:
Publisher
Generated with
This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.
This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.