org.zkoss.zul
Class LayoutRegion

java.lang.Object
  org.zkoss.zk.ui.AbstractComponent
      org.zkoss.zk.ui.HtmlBasedComponent
          org.zkoss.zul.impl.XulElement
              org.zkoss.zul.LayoutRegion

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Component, Scope, ComponentCtrl

Direct Known Subclasses:

Center, East, North, South, West

public abstract class LayoutRegion
extends XulElement

A layout region in a border layout.

Events:
onOpen, onSize.

Support Caption component

[ZK EE] [Since 6.5.0]

Since:

5.0.0

Author:

jumperchen

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.zkoss.zk.ui.HtmlBasedComponent

HtmlBasedComponent.ExtraCtrl

Nested classes/interfaces inherited from class org.zkoss.zk.ui.AbstractComponent

AbstractComponent.Children

Field Summary

Fields inherited from class org.zkoss.zk.ui.HtmlBasedComponent

_zclass

Fields inherited from interface org.zkoss.zk.ui.Component

APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE

Fields inherited from interface org.zkoss.zk.ui.sys.ComponentCtrl

CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE

Constructor Summary

LayoutRegion()

Method Summary

void	beforeChildAdded(Component child, Component refChild) Default: does nothing.
void	beforeParentChanged(Component parent) Default: does nothing.
java.lang.Object	clone() Clones the component.
java.lang.String	getBorder() Returns the border.
Caption	getCaption() Returns the caption of this region.
java.lang.String	getCmargins() Returns the collapsed margins, which is a list of numbers separated by comma.
protected abstract int[]	getDefaultCmargins() Returns the default collapsed margin.
java.lang.String	getMargins() Returns the margins, which is a list of numbers separated by comma.
int	getMaxsize() Returns the maximum size of the resizing element.
int	getMinsize() Returns the minimum size of the resizing element.
abstract java.lang.String	getPosition() Returns this regions position (north/south/east/west/center).
abstract java.lang.String	getSize() Returns the size of this region.
java.lang.String	getTitle() Returns the title.
java.lang.String	getZclass() Returns the ZK Cascading Style class(es) for this component.
boolean	insertBefore(Component child, Component refChild) Inserts a child before the reference child.
boolean	isAutoscroll() Returns whether enable overflow scrolling.
boolean	isCollapsible() Returns whether set the initial display to collapse.
boolean	isFlex() Deprecated. As of release 6.0.2, use HtmlBasedComponent.getHflex() and HtmlBasedComponent.getVflex() on child component instead Default: false.
boolean	isOpen() Returns whether it is open (i.e., not collapsed.
boolean	isSplittable() Returns whether enable the split functionality.
void	onChildRemoved(Component child) Default: does nothing.
protected void	renderProperties(ContentRenderer renderer) Renders the content of this component, excluding the enclosing tags and children.
void	service(AuRequest request, boolean everError) Processes an AU request.
void	setAutoscroll(boolean autoscroll) Sets whether enable overflow scrolling.
void	setBorder(java.lang.String border) Sets the border (either none or normal).
void	setCmargins(java.lang.String cmargins) Sets the collapsed margins for the element "0,1,2,3" that direction is "top,left,right,bottom" Default: "3,3,3,3" for center, "0,3,3,0" for east and west, and "3,0,0,3" for north and south.
void	setCollapsible(boolean collapsible) Sets whether set the initial display to collapse.
void	setFlex(boolean flex) Deprecated. As of release 6.0.2, use HtmlBasedComponent.setHflex(String) and HtmlBasedComponent.setVflex(String) on child component instead
void	setMargins(java.lang.String margins) Sets margins for the element "0,1,2,3" that direction is "top,left,right,bottom"
void	setMaxsize(int maxsize) Sets the maximum size of the resizing element.
void	setMinsize(int minsize) Sets the minimum size of the resizing element.
void	setOpen(boolean open) Opens or collapses the splitter.
abstract void	setSize(java.lang.String size) Sets the size of this region.
void	setSplittable(boolean splittable) Sets whether enable the split functionality.
void	setTitle(java.lang.String title) Sets the title.

Methods inherited from class org.zkoss.zul.impl.XulElement

getContext, getCtrlKeys, getPopup, getTooltip, setContext, setContext, setCtrlKeys, setPopup, setPopup, setTooltip, setTooltip

Methods inherited from class org.zkoss.zk.ui.HtmlBasedComponent

focus, getAction, getDraggable, getDroppable, getExtraCtrl, getHeight, getHflex, getLeft, getRenderdefer, getSclass, getStyle, getTooltiptext, getTop, getVflex, getWidth, getZindex, getZIndex, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeightDirectly, setHflex, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTooltiptext, setTop, setTopDirectly, setVflex, setWidth, setWidthDirectly, setZclass, setZindex, setZIndex, setZIndexDirectly

Methods inherited from class org.zkoss.zk.ui.AbstractComponent

addAnnotation, addAnnotation, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addScopeListener, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildRemoved, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableClientUpdate, equals, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getChildren, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNextSibling, getPage, getParent, getPreviousSibling, getRoot, getSpaceOwner, getStubonly, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetClass, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasFellow, hasFellow, invalidate, isChildable, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onPageAttached, onPageDetached, onWrongValue, query, queryAll, redraw, redrawChildren, removeAttribute, removeAttribute, removeAttribute, removeChild, removeEventListener, removeForward, removeForward, removeScopeListener, render, render, render, replace, response, response, response, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setParent, setStubonly, setStubonly, setTemplate, setVisible, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, toString, updateByClient, willPassivate, willPassivate, willSerialize, willSerialize

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LayoutRegion

public LayoutRegion()

Method Detail

getCaption

public Caption getCaption()

Returns the caption of this region.

Since:

6.5.0

getBorder

public java.lang.String getBorder()

Returns the border.

The border actually controls what CSS class to use: If border is null, it implies "none".

If you also specify the CSS class (HtmlBasedComponent.setClass(java.lang.String)), it overwrites whatever border you specify here.

Default: "normal".

setBorder

public void setBorder(java.lang.String border)

Sets the border (either none or normal).

Parameters:

border - the border. If null or "0", "none" is assumed.

isFlex

public boolean isFlex()

Deprecated. As of release 6.0.2, use HtmlBasedComponent.getHflex() and HtmlBasedComponent.getVflex() on child component instead

Default: false.

setFlex

public void setFlex(boolean flex)

Deprecated. As of release 6.0.2, use HtmlBasedComponent.setHflex(String) and HtmlBasedComponent.setVflex(String) on child component instead

getMargins

public java.lang.String getMargins()

Returns the margins, which is a list of numbers separated by comma.

Default: "0,0,0,0".

setMargins

public void setMargins(java.lang.String margins)

Sets margins for the element "0,1,2,3" that direction is "top,left,right,bottom"

isAutoscroll

public boolean isAutoscroll()

Returns whether enable overflow scrolling.

Default: false.

setAutoscroll

public void setAutoscroll(boolean autoscroll)

Sets whether enable overflow scrolling.

getPosition

public abstract java.lang.String getPosition()

Returns this regions position (north/south/east/west/center).

See Also:

Borderlayout.NORTH, Borderlayout.SOUTH, Borderlayout.EAST, Borderlayout.WEST, Borderlayout.CENTER

setSize

public abstract void setSize(java.lang.String size)

Sets the size of this region. This method is shortcut for HtmlBasedComponent.setHeight(String) and HtmlBasedComponent.setWidth(String). If this region is North or South, this method will invoke HtmlBasedComponent.setHeight(String). If this region is West or East, this method will invoke HtmlBasedComponent.setWidth(String). Otherwise it will throw a UnsupportedOperationException.

getSize

public abstract java.lang.String getSize()

Returns the size of this region. This method is shortcut for HtmlBasedComponent.getHeight() and HtmlBasedComponent.getWidth(). If this region is North or South, this method will invoke HtmlBasedComponent.getHeight(). If this region is West or East, this method will invoke HtmlBasedComponent.getWidth(). Otherwise it will throw a UnsupportedOperationException.

getTitle

public java.lang.String getTitle()

Returns the title.

Default: null.

setTitle

public void setTitle(java.lang.String title)

Sets the title.

isSplittable

public boolean isSplittable()

Returns whether enable the split functionality.

Default: false.

setSplittable

public void setSplittable(boolean splittable)

Sets whether enable the split functionality.

setMaxsize

public void setMaxsize(int maxsize)

Sets the maximum size of the resizing element.

getMaxsize

public int getMaxsize()

Returns the maximum size of the resizing element.

Default: 2000.

setMinsize

public void setMinsize(int minsize)

Sets the minimum size of the resizing element.

getMinsize

public int getMinsize()

Returns the minimum size of the resizing element.

Default: 0.

getCmargins

public java.lang.String getCmargins()

Returns the collapsed margins, which is a list of numbers separated by comma.

See Also:

setCmargins(java.lang.String), getDefaultCmargins()

setCmargins

public void setCmargins(java.lang.String cmargins)

Sets the collapsed margins for the element "0,1,2,3" that direction is "top,left,right,bottom"

Default: "3,3,3,3" for center, "0,3,3,0" for east and west, and "3,0,0,3" for north and south.

See Also:

getCmargins(), getDefaultCmargins()

getDefaultCmargins

protected abstract int[] getDefaultCmargins()

Returns the default collapsed margin.

Since:

5.0.5

isCollapsible

public boolean isCollapsible()

Returns whether set the initial display to collapse.

It only applied when getTitle() is not null. (since 3.5.0)

Default: false.

setCollapsible

public void setCollapsible(boolean collapsible)

Sets whether set the initial display to collapse.

It only applied when getTitle() is not null. (since 3.5.0)

isOpen

public boolean isOpen()

Returns whether it is open (i.e., not collapsed. Meaningful only if isCollapsible() is not false.

Default: true.

setOpen

public void setOpen(boolean open)

Opens or collapses the splitter. Meaningful only if isCollapsible() is not false.

getZclass

public java.lang.String getZclass()

Description copied from class: HtmlBasedComponent

Returns the ZK Cascading Style class(es) for this component. It usually depends on the implementation of the mold (AbstractComponent.getMold()).

Default: null (the default value depends on element).

HtmlBasedComponent.setZclass(java.lang.String)) will completely replace the default style of a component. In other words, the default style of a component is associated with the default value of HtmlBasedComponent.getZclass(). Once it is changed, the default style won't be applied at all. If you want to perform small adjustments, use HtmlBasedComponent.setSclass(java.lang.String) instead.

Overrides:

getZclass in class HtmlBasedComponent

See Also:

HtmlBasedComponent.getSclass()

beforeChildAdded

public void beforeChildAdded(Component child,
                             Component refChild)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

beforeChildAdded in interface ComponentCtrl

Overrides:

beforeChildAdded in class AbstractComponent

Parameters:

child - the child to be added (never null).

refChild - another child component that the new child will be inserted before it. If null, the new child will be the last child.

See Also:

ComponentCtrl.beforeChildAdded(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component)

beforeParentChanged

public void beforeParentChanged(Component parent)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

beforeParentChanged in interface ComponentCtrl

Overrides:

beforeParentChanged in class AbstractComponent

Parameters:

parent - the new parent. If null, it means detachment.

See Also:

ComponentCtrl.beforeParentChanged(org.zkoss.zk.ui.Component)

insertBefore

public boolean insertBefore(Component child,
                            Component refChild)

Description copied from interface: Component

Inserts a child before the reference child.

You could use Component.setParent(org.zkoss.zk.ui.Component) or Component.appendChild(org.zkoss.zk.ui.Component) instead of this method, unless you want to control where to put the child.

Note: Component.setParent(org.zkoss.zk.ui.Component) always calls back Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and/or Component.removeChild(org.zkoss.zk.ui.Component), while Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and Component.removeChild(org.zkoss.zk.ui.Component) always calls back Component.setParent(org.zkoss.zk.ui.Component), if the parent is changed. Thus, you don't need to override both Component.insertBefore(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.Component) and Component.setParent(org.zkoss.zk.ui.Component), if you want to customize the behavior.

If you would like to monitor if a component is attached or detached from a page, you could register a desktop listener implementing UiLifeCycle.

Specified by:

insertBefore in interface Component

Overrides:

insertBefore in class AbstractComponent

Parameters:

child - the new child to be inserted.

refChild - the child before which you want the new child being inserted. If null, the new child is append to the end.

Returns:

true if newChild is added successfully or moved; false if it already has the specified child and the order doesn't change.

onChildRemoved

public void onChildRemoved(Component child)

Description copied from class: AbstractComponent

Default: does nothing.

Specified by:

onChildRemoved in interface ComponentCtrl

Overrides:

onChildRemoved in class AbstractComponent

See Also:

ComponentCtrl.onChildRemoved(org.zkoss.zk.ui.Component)

renderProperties

protected void renderProperties(ContentRenderer renderer)
                         throws java.io.IOException

Description copied from class: HtmlBasedComponent

Renders the content of this component, excluding the enclosing tags and children.

See also ZK Client-side Reference: Property Rendering

Overrides:

renderProperties in class XulElement

Throws:

java.io.IOException

service

public void service(AuRequest request,
                    boolean everError)

Processes an AU request.

Default: in addition to what are handled by service(org.zkoss.zk.au.AuRequest, boolean), it also handles onOpen.

Specified by:

service in interface ComponentCtrl

Overrides:

service in class HtmlBasedComponent

everError - whether any error ever occurred before processing this request.

See Also:

AbstractComponent.setAuService(org.zkoss.zk.au.AuService)

clone

public java.lang.Object clone()

Description copied from interface: Component

Clones the component. All of its children and descendants are cloned. Also, ID are preserved.

Specified by:

clone in interface Component

Overrides:

clone in class XulElement

Returns:

the new component. Notice that it doesn't belong to any page, nor desktop. It doesn't have a parent, either.