SimpleLayoutPanel (Google Web Toolkit Javadoc)

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GWT 2.4.0

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com.google.gwt.user.client.ui
Class SimpleLayoutPanel

java.lang.Object
  com.google.gwt.user.client.ui.UIObject
      com.google.gwt.user.client.ui.Widget
          com.google.gwt.user.client.ui.Panel
              com.google.gwt.user.client.ui.SimplePanel
                  com.google.gwt.user.client.ui.SimpleLayoutPanel

All Implemented Interfaces:: HasAttachHandlers, HasHandlers, EventListener, AcceptsOneWidget, HasOneWidget, HasVisibility, HasWidgets, HasWidgets.ForIsWidget, IsWidget, ProvidesResize, RequiresResize, java.lang.Iterable<Widget>

public class SimpleLayoutPanel
extends SimplePanel
implements RequiresResize, ProvidesResize
extends SimplePanel
implements RequiresResize, ProvidesResize

A simple panel that ProvidesResize to its one child.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject
`UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled`

Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.HasWidgets
`HasWidgets.ForIsWidget`

Field Summary

Fields inherited from class com.google.gwt.user.client.ui.UIObject
`DEBUG_ID_PREFIX`

Constructor Summary
`SimpleLayoutPanel()`

Method Summary
`protected void`	`onLoad()` This method is called immediately after a widget becomes attached to the browser's document.
`void`	`onResize()` This method must be called whenever the implementor's size has been modified.
`protected void`	`onUnload()` This method is called immediately before a widget will be detached from the browser's document.
`boolean`	`remove(Widget w)` Removes a child widget.
`void`	`setWidget(Widget w)` Sets this panel's widget.

Methods inherited from class com.google.gwt.user.client.ui.SimplePanel
`add, getContainerElement, getWidget, iterator, setWidget`

Methods inherited from class com.google.gwt.user.client.ui.Panel
`add, adopt, adopt, clear, disown, doAttachChildren, doDetachChildren, orphan, remove`

Methods inherited from class com.google.gwt.user.client.ui.Widget
`addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, fireEvent, getHandlerCount, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, removeFromParent, setLayoutData, sinkEvents`

Methods inherited from class com.google.gwt.user.client.ui.UIObject
addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString, unsinkEvents

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

SimpleLayoutPanel

public SimpleLayoutPanel()

Method Detail

onResize

public void onResize()

Description copied from interface: RequiresResize

This method must be called whenever the implementor's size has been modified.

Specified by:: onResize in interface RequiresResize

remove

public boolean remove(Widget w)

Description copied from class: Panel

Removes a child widget.

How to Override this Method

There are several important things that must take place in the correct order to properly remove a Widget from a Panel. Not all of these steps will be relevant to every Panel, but all of the steps must be considered.

Validate: Make sure this Panel is actually the parent of the child Widget; return false if it is not.
Orphan: Call Panel.orphan(Widget) first while the child Widget is still attached.
Physical Detach: Adjust the DOM to account for the removal of the child Widget. The Widget's Element must be physically removed from the DOM.
Logical Detach: Update the Panel's state variables to reflect the removal of the child Widget. Example: the Widget is removed from the Panel's WidgetCollection.

Specified by:: remove in interface HasWidgets
Overrides:: remove in class SimplePanel

Parameters:: w - the widget to be removed
Returns:: true if the child was present

setWidget

public void setWidget(Widget w)

Description copied from class: SimplePanel

Sets this panel's widget. Any existing child widget will be removed.

Specified by:: setWidget in interface HasOneWidget
Overrides:: setWidget in class SimplePanel

Parameters:: w - the panel's new widget, or null to clear the panel

onLoad

protected void onLoad()

Description copied from class: Widget

This method is called immediately after a widget becomes attached to the browser's document.

Overrides:: onLoad in class Widget

onUnload

protected void onUnload()