libgdx API

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

java.lang.Object
  extended by com.badlogic.gdx.scenes.scene2d.Actor
      extended by com.badlogic.gdx.scenes.scene2d.Group
          extended by com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup
              extended by 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()
           
 float getMaxWidth()
           
 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
childrenChanged, draw, invalidateHierarchy, needsLayout, pack, setFillParent, setLayoutEnabled, validate
 
Methods inherited from class com.badlogic.gdx.scenes.scene2d.Group
act, addActor, addActorAfter, addActorAt, addActorBefore, applyTransform, clear, computeTransform, drawChildren, findActor, getChildren, hit, isTransform, localToDescendantCoordinates, removeActor, resetTransform, setCullingArea, setStage, setTransform, swapActor, swapActor
 
Methods inherited from class com.badlogic.gdx.scenes.scene2d.Actor
addAction, addCaptureListener, addListener, clearActions, clipBegin, clipBegin, clipEnd, fire, getActions, getCaptureListeners, getColor, getHeight, getListeners, getName, getOriginX, getOriginY, getParent, getRight, getRotation, getScaleX, getScaleY, getStage, getTop, getTouchable, getWidth, getX, getY, getZIndex, hasParent, isAscendantOf, isDescendantOf, isVisible, localToAscendantCoordinates, localToParentCoordinates, localToStageCoordinates, notify, parentToLocalCoordinates, remove, removeAction, removeCaptureListener, removeListener, rotate, scale, scale, screenToLocalCoordinates, setBounds, setColor, setColor, setHeight, setName, setOrigin, setOriginX, setOriginY, setParent, setPosition, setRotation, setScale, setScale, setScaleX, setScaleY, setSize, setTouchable, setVisible, setWidth, setX, setY, setZIndex, size, size, stageToLocalCoordinates, toBack, toFront, toString, translate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, 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()
Specified by:
getMaxWidth in interface Layout
Overrides:
getMaxWidth in class WidgetGroup

getMaxHeight

public float getMaxHeight()
Specified by:
getMaxHeight in interface Layout
Overrides:
getMaxHeight in class WidgetGroup

libgdx API

Copyright 2010 Mario Zechner (contact@badlogicgames.com), Nathan Sweet (admin@esotericsoftware.com)