com.badlogic.gdx.scenes.scene2d.ui
Class Stack

java.lang.Object
  com.badlogic.gdx.scenes.scene2d.Actor
      com.badlogic.gdx.scenes.scene2d.Group
          com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup
              com.badlogic.gdx.scenes.scene2d.ui.Stack

All Implemented Interfaces:

Cullable, Layout

public class Stack
extends WidgetGroup

A stack is a container that sizes its children to its size and positions them at 0,0 on top of each other.

The preferred and min size of the stack is the largest preferred and min size of any children. The max size of the stack is the smallest max size of any children.

Author:

Nathan Sweet

Constructor Summary

Stack()

Method Summary

void	add(Actor actor)
float	getMaxHeight() Zero indicates no max height.
float	getMaxWidth() Zero indicates no max width.
float	getMinHeight()
float	getMinWidth()
float	getPrefHeight()
float	getPrefWidth()
void	invalidate() Invalidates this actor's layout, causing Layout.layout() to happen the next time Layout.validate() is called.
void	layout() Computes and caches any information needed for drawing and, if this actor has children, positions and sizes each child, calls Layout.invalidate() any each child whose width or height has changed, and calls Layout.validate() on each child.

Methods inherited from class com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup

draw, invalidateHierarchy, needsLayout, pack, setFillParent, setLayoutEnabled, validate

Methods inherited from class com.badlogic.gdx.scenes.scene2d.Group

act, addActor, addActorAfter, addActorAt, addActorBefore, clear, clearChildren, findActor, getChildren, hasChildren, hit, isTransform, localToDescendantCoordinates, print, removeActor, setCullingArea, setTransform, swapActor, swapActor

Methods inherited from class com.badlogic.gdx.scenes.scene2d.Actor

addAction, addCaptureListener, addListener, clearActions, clearListeners, clipBegin, clipBegin, clipEnd, fire, getActions, getCaptureListeners, getColor, getHeight, getListeners, getName, getOriginX, getOriginY, getParent, getRight, getRotation, getScaleX, getScaleY, getStage, getTop, getTouchable, getUserObject, getWidth, getX, getY, getZIndex, hasParent, isAscendantOf, isDescendantOf, isTouchable, isVisible, localToAscendantCoordinates, localToParentCoordinates, localToStageCoordinates, moveBy, notify, parentToLocalCoordinates, remove, removeAction, removeCaptureListener, removeListener, rotateBy, scaleBy, scaleBy, screenToLocalCoordinates, setBounds, setColor, setColor, setHeight, setName, setOrigin, setOriginX, setOriginY, setPosition, setRotation, setScale, setScale, setScaleX, setScaleY, setSize, setTouchable, setUserObject, setVisible, setWidth, setX, setY, setZIndex, sizeBy, sizeBy, stageToLocalCoordinates, toBack, toFront, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Stack

public Stack()

Method Detail

invalidate

public void invalidate()

Description copied from interface: Layout

Invalidates this actor's layout, causing Layout.layout() to happen the next time Layout.validate() is called. This method should be called when state changes in the actor that requires a layout but does not change the minimum, preferred, maximum, or actual size of the actor (meaning it does not affect the parent actor's layout).

Specified by:

invalidate in interface Layout

Overrides:

invalidate in class WidgetGroup

add

public void add(Actor actor)

layout

public void layout()

Description copied from interface: Layout

Computes and caches any information needed for drawing and, if this actor has children, positions and sizes each child, calls Layout.invalidate() any each child whose width or height has changed, and calls Layout.validate() on each child. This method should almost never be called directly, instead Layout.validate() should be used.

Specified by:

layout in interface Layout

Overrides:

layout in class WidgetGroup

getPrefWidth

public float getPrefWidth()

Specified by:

getPrefWidth in interface Layout

Overrides:

getPrefWidth in class WidgetGroup

getPrefHeight

public float getPrefHeight()

Specified by:

getPrefHeight in interface Layout

Overrides:

getPrefHeight in class WidgetGroup

getMinWidth

public float getMinWidth()

Specified by:

getMinWidth in interface Layout

Overrides:

getMinWidth in class WidgetGroup

getMinHeight

public float getMinHeight()

Specified by:

getMinHeight in interface Layout

Overrides:

getMinHeight in class WidgetGroup

getMaxWidth

public float getMaxWidth()

Description copied from interface: Layout

Zero indicates no max width.

Specified by:

getMaxWidth in interface Layout

Overrides:

getMaxWidth in class WidgetGroup

getMaxHeight

public float getMaxHeight()

Description copied from interface: Layout

Zero indicates no max height.

Specified by:

getMaxHeight in interface Layout

Overrides:

getMaxHeight in class WidgetGroup