org.zkoss.zul
Class LayoutRegion

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


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