Package eu.webtoolkit.jwt

Class WScrollArea

java.lang.Object

eu.webtoolkit.jwt.WObject

eu.webtoolkit.jwt.WWidget

eu.webtoolkit.jwt.WWebWidget

eu.webtoolkit.jwt.WScrollArea

public class WScrollArea
extends WWebWidget

A widget that adds scrolling capabilities to its content.

Use a WScrollArea to add scrolling capabilities to another widget. When the content is bigger than the WScrollArea, scrollbars are added so that the user can still view the entire content.

Use setScrollBarPolicy() to configure if and when the scrollbars may appear.

In many cases, it might be easier to use the CSS overflow property on a WContainerWidget (see WContainerWidget#setOverflow()). However, this class will behave better when used inside a layout manager: in that case it will make sure horizontal scrolling works properly, since otherwise the layout manager would overflow rather than scrollbars appear.

CSS

This widget is rendered using a <div> with a CSS overflow attribute. When in a layout manager it is positioned absolutely. It can be styled using inline or external CSS as appropriate.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WScrollArea.ScrollBarPolicy	brief Policy for showing a scrollbar.

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WObject

WObject.FormData

Constructor Summary

Constructors

Constructor	Description
WScrollArea()	Creates a scroll area.
WScrollArea(WContainerWidget parent)	Creates a scroll area.

Method Summary

Modifier and Type	Method	Description
WScrollBar	getHorizontalScrollBar()	Returns the horizontal scrollbar.
WScrollArea.ScrollBarPolicy	getHorizontalScrollBarPolicy()	Returns the horizontal scroll bar policy.
WScrollBar	getVerticalScrollBar()	Returns the vertical scrollbar.
WScrollArea.ScrollBarPolicy	getVerticalScrollBarPolicy()	Returns the vertical scroll bar policy.
WWidget	getWidget()	Returns the widget content.
void	remove()	Destructor.
void	setHorizontalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)	Sets the horizontal scroll bar policy.
void	setScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)	Sets the policy for both scrollbars.
void	setVerticalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)	Sets the vertical scroll bar policy.
void	setWidget(WWidget widget)	Sets the widget that is the content of the scroll area.
WWidget	takeWidget()	Removes the widget content.

Methods inherited from class eu.webtoolkit.jwt.WWebWidget

addStyleClass, blurred, callJavaScriptMember, childrenChanged, createDomElement, doJavaScript, enableAjax, escapeText, escapeText, escapeText, escapeText, find, findById, focussed, getAttributeValue, getBaseZIndex, getChildren, getClearSides, getDecorationStyle, getDomChanges, getFloatSide, getHeight, getHtmlTagName, getId, getJavaScriptMember, getLineHeight, getMargin, getMaximumHeight, getMaximumWidth, getMinimumHeight, getMinimumWidth, getOffset, getPositionScheme, getScrollVisibilityMargin, getStyleClass, getTabIndex, getToolTip, getVerticalAlignment, getVerticalAlignmentLength, getWidth, hasFocus, hasStyleClass, isCanReceiveFocus, isDisabled, isEnabled, isHidden, isHiddenKeepsGeometry, isInline, isLoaded, isPopup, isRendered, isScrollVisibilityEnabled, isScrollVisible, isSetFirstFocus, isThemeStyleEnabled, isVisible, jsStringLiteral, jsStringLiteral, load, parentResized, parentResized, propagateSetEnabled, propagateSetVisible, refresh, removeScript, removeStyleClass, render, resize, scrollVisibilityChanged, setAttributeValue, setBaseZIndex, setCanReceiveFocus, setClearSides, setDecorationStyle, setDeferredToolTip, setDisabled, setFloatSide, setFocus, setHidden, setHiddenKeepsGeometry, setHtmlTagName, setId, setInline, setJavaScriptMember, setLineHeight, setLoadLaterWhenInvisible, setMargin, setMaximumSize, setMinimumSize, setOffsets, setPopup, setPositionScheme, setScrollVisibilityEnabled, setScrollVisibilityMargin, setSelectable, setStyleClass, setTabIndex, setThemeStyleEnabled, setToolTip, setVerticalAlignment, updateSignalConnection, voidEventSignal

Methods inherited from class eu.webtoolkit.jwt.WWidget

acceptDrops, acceptDrops, addCssRule, addCssRule, addJSignal, addStyleClass, animateHide, animateShow, boxBorder, boxPadding, createJavaScript, disable, dropEvent, enable, getDropTouch, getJsRef, getParent, hide, htmlText, isExposed, isLayoutSizeAware, layoutSizeChanged, needsRerender, positionAt, positionAt, removeChild, removeStyleClass, render, resize, scheduleRender, scheduleRender, scheduleRender, setClearSides, setDeferredToolTip, setFocus, setHeight, setHidden, setLayoutSizeAware, setMargin, setMargin, setMargin, setMargin, setMargin, setObjectName, setOffsets, setOffsets, setOffsets, setOffsets, setOffsets, setToolTip, setVerticalAlignment, setWidth, show, stopAcceptDrops, toggleStyleClass, toggleStyleClass, tr

Methods inherited from class eu.webtoolkit.jwt.WObject

addChild, getObjectName, setFormData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WScrollArea

public WScrollArea(WContainerWidget parent)

Creates a scroll area.

WScrollArea

public WScrollArea()

Creates a scroll area.

Calls this((WContainerWidget)null)

Method Details

remove

public void remove()

Description copied from class: WWidget

Destructor.

Deletes a widget and all children (recursively). If the widget is contained in another widget, it is removed first.

Overrides:

remove in class WWebWidget

See Also:

WContainerWidget.removeWidget(WWidget widget)

setWidget

public void setWidget(WWidget widget)

Sets the widget that is the content of the scroll area.

Setting a new widget will delete the previously set widget.

takeWidget

public WWidget takeWidget()

Removes the widget content.

getWidget

public WWidget getWidget()

Returns the widget content.

getHorizontalScrollBar

public WScrollBar getHorizontalScrollBar()

Returns the horizontal scrollbar.

getVerticalScrollBar

public WScrollBar getVerticalScrollBar()

Returns the vertical scrollbar.

setScrollBarPolicy

public void setScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

Sets the policy for both scrollbars.

See Also:

setHorizontalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy), setVerticalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

setHorizontalScrollBarPolicy

public void setHorizontalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

Sets the horizontal scroll bar policy.

See Also:

setScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

setVerticalScrollBarPolicy

public void setVerticalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

Sets the vertical scroll bar policy.

See Also:

setScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

getHorizontalScrollBarPolicy

public WScrollArea.ScrollBarPolicy getHorizontalScrollBarPolicy()

Returns the horizontal scroll bar policy.

See Also:

setHorizontalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)

getVerticalScrollBarPolicy

public WScrollArea.ScrollBarPolicy getVerticalScrollBarPolicy()

Returns the vertical scroll bar policy.

See Also:

setVerticalScrollBarPolicy(WScrollArea.ScrollBarPolicy policy)