blob: a6a776c885920052dfcc79d84970fadc090bbe77 [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!-- saved from url=(0014)about:internet --><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="stylesheet" href="../../style.css" type="text/css" media="screen"><link rel="stylesheet" href="../../print.css" type="text/css" media="print"><link rel="stylesheet" href="../../override.css" type="text/css"><meta name="keywords" content="IViewport,spark.core.IViewport,ALPHA,AUTO,CLIP,DOWN,END,HOME,LEFT,LUMINOSITY,NEVER,OWNS_SHARED_OBJECT,OWNS_UNSHARED_OBJECT,PAGE_DOWN,PAGE_LEFT,PAGE_RIGHT,PAGE_UP,RIGHT,UNTRUSTED,UP,USES_SHARED_OBJECT,accessibilityProperties,activeRequests,baseline,baselinePosition,blendMode,bottom,cacheEntries,cachedData,clipAndEnableScrolling,complete,content,contentHeight,contentWidth,depth,designLayer,displayAsPassword,displayObject,displayObjectSharingMode,editable,enableCaching,enableQueueing,enabled,focusEnabled,hasLayoutMatrix3D,horizontalCenter,horizontalScrollPosition,horizontalScrollPosition,id,includeInLayout,is3D,isTruncated,layoutDirection,left,lineBreak,luminosityClip,luminosityInvert,mask,maskType,maxActiveRequests,maxCacheEntries,maxChars,moduleFactory,multiline,numCacheEntries,owner,percentHeight,percentWidth,postLayoutTransformOffsets,priorityGroup,redrawRequested,requestQueue,restrict,right,rotationX,rotationY,selectable,selectionActivePosition,selectionAnchorPosition,tabIndex,text,top,transformX,transformY,transformZ,verticalCenter,verticalScrollPosition,verticalScrollPosition,viewHeight,viewWidth,visible,addCacheEntry,appendText,canShareWithNext,canShareWithPrevious,createDisplayObject,getBoundsXAtSize,getBoundsYAtSize,getCacheEntry,getHorizontalScrollPositionDelta,getLayoutBoundsHeight,getLayoutBoundsWidth,getLayoutBoundsX,getLayoutBoundsY,getLayoutMatrix,getLayoutMatrix3D,getMaxBoundsHeight,getMaxBoundsWidth,getMinBoundsHeight,getMinBoundsWidth,getPreferredBoundsHeight,getPreferredBoundsWidth,getVerticalScrollPositionDelta,initialized,insertText,invalidateGraphicElementDisplayList,invalidateGraphicElementProperties,invalidateGraphicElementSharing,invalidateGraphicElementSize,invalidateLayoutDirection,invalidateParentSizeAndDisplayList,isNavigationUnit,keepSoftKeyboardActive,load,load,parentChanged,prepareForTouchScroll,prioritize,removeAllCacheEntries,removeAllQueueEntries,removeCacheEntry,scrollToRange,selectAll,selectRange,setFocus,setLayoutBoundsPosition,setLayoutBoundsSize,setLayoutMatrix,setLayoutMatrix3D,setSharedDisplayObject,transformAround,transformHeightForLayout,transformPointToParent,transformWidthForLayout,validateDisplayList,validateProperties,validateSize"><title>spark.core.IViewport</title><script src="../../AC_OETags.js" type="text/javascript"></script></head><body><script language="javascript" type="text/javascript" src="../../asdoc.js"></script><script language="javascript" type="text/javascript" src="../../help.js"></script><script language="javascript" type="text/javascript" src="../../cookies.js"></script><script language="javascript" type="text/javascript"><!--
asdocTitle = 'IViewport - ApacheFlex API Reference';
var baseRef = '../../';
window.onload = configPage;
--></script>
<script type="text/javascript">
scrollToNameAnchor();
</script><table class="titleTable" cellpadding="0" cellspacing="0" id="titleTable" style="display:none"><tr><td class="titleTableTitle" align="left">Apache Flex 4.16.1 API Reference </td><td class="titleTableTopNav" align="right"><a href="../../package-summary.html" onclick="loadClassListFrame('../../all-classes.html')">All Packages</a>&nbsp;|&nbsp;<a href="../../class-summary.html" onclick="loadClassListFrame('../../all-classes.html')">All Classes</a>&nbsp;|&nbsp;<a href="../../all-index-A.html" onclick="loadClassListFrame('../../index-list.html')">Index</a>&nbsp;|&nbsp;<a id="framesLink1" href="../../index.html?spark/core/IViewport.html&amp;spark/core/class-list.html">Frames</a><a id="noFramesLink1" style="display:none" href="" onclick="parent.location=document.location"> No Frames </a></td><td class="titleTableLogo" align="right" rowspan="3"><img src="../../images/logo.jpg" class="logoImage" alt="AdobeLogo" title="AdobeLogo"></td></tr><tr class="titleTableRow2"><td class="titleTableSubTitle" id="subTitle" align="left">IViewport</td><td class="titleTableSubNav" id="subNav" align="right"><a href="#propertySummary">Properties</a>&nbsp;| <a href="#methodSummary">Methods</a>&nbsp;| <a href="#includeExamplesSummary">Examples</a></td></tr><tr class="titleTableRow3"><td colspan="3">&nbsp;</td></tr></table><script language="javascript" type="text/javascript" xml:space="preserve">
<!--
if (!isEclipse() || window.name != ECLIPSE_FRAME_NAME) {titleBar_setSubTitle("IViewport"); titleBar_setSubNav(false,true,false,false,false,false,false,false,true,true,false ,false,false,false,false,false);}
-->
</script><div xmlns:fn="http://www.w3.org/2005/xpath-functions" class="MainContent"><table class="classHeaderTable" cellpadding="0" cellspacing="0"><tr><td class="classHeaderTableLabel">Package</td><td><a href="package-detail.html" onclick="javascript:loadClassListFrame('class-list.html')">spark.core</a></td></tr><tr><td class="classHeaderTableLabel">Interface</td><td class="classSignature">public interface IViewport extends <a href="../../mx/core/IVisualElement.html">IVisualElement</a>, <a href="../../mx/core/ILayoutElement.html">ILayoutElement</a>, <a href="../../mx/core/ILayoutDirectionElement.html">ILayoutDirectionElement</a>, flash.events.IEventDispatcher</td></tr><tr><td class="classHeaderTableLabel">Implementors</td><td> <a href="../../spark/components/supportClasses/GroupBase.html">GroupBase</a>, <a href="../../spark/components/RichEditableText.html">RichEditableText</a></td></tr></table><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p></p><p></p>
The IViewport interface is implemented by components that support a viewport.
If a component's children are larger than the component,
and you want to clip the children to the component boundaries, you can define a viewport and scroll bars.
A viewport is a rectangular subset of the area of a component that you want to display,
rather than displaying the entire component.
<p>A viewport on its own is not movable by the application user.
However, you can combine a viewport with scroll bars so the user can scroll
the viewport to see the entire content of the component.
Use the Scroller component to add scrolbars to the component.</p>
<p></p><p><a href="#includeExamplesSummary">View the examples</a></p><p><span class="classHeaderTableLabel">See also</span></p><div class="seeAlso"><a href="../../spark/components/Scroller.html" target="">spark.components.Scroller</a></div><br/><hr></div><a name="propertySummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Properties</div><div class="showHideLinks"><div id="hideInheritedProperty" class="hideInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(false,'Property');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Public Properties</a></div><div id="showInheritedProperty" class="showInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(true,'Property');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Public Properties</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableProperty"><tr><th>&nbsp;</th><th colspan="2">Property</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#alpha" class="signatureLink">alpha</a> : Number<div class="summaryTableDescription"></div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#baseline" class="signatureLink">baseline</a> : Object<div class="summaryTableDescription">
The vertical distance in pixels from the anchor target to
the control's baseline position.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#baselinePosition" class="signatureLink">baselinePosition</a> : Number<div class="summaryTableDescription">[read-only]
The y-coordinate of the baseline
of the first line of text of the component.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#bottom" class="signatureLink">bottom</a> : Object<div class="summaryTableDescription">
The vertical distance in pixels from the bottom edge of the component to the
anchor target's bottom edge.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#clipAndEnableScrolling" class="signatureLink">clipAndEnableScrolling</a> : Boolean<div class="summaryTableDescription">
If true, specifies to clip the children to the boundaries of the viewport.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#contentHeight" class="signatureLink">contentHeight</a> : Number<div class="summaryTableDescription">[read-only]
The height of the viewport's content.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#contentWidth" class="signatureLink">contentWidth</a> : Number<div class="summaryTableDescription">[read-only]
The width of the viewport's contents.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#depth" class="signatureLink">depth</a> : Number<div class="summaryTableDescription">
Determines the order in which items inside of containers
are rendered.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#designLayer" class="signatureLink">designLayer</a> : <a href="../../mx/core/DesignLayer.html">DesignLayer</a><div class="summaryTableDescription">
Specifies the optional DesignLayer instance associated with this visual
element.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#hasLayoutMatrix3D" class="signatureLink">hasLayoutMatrix3D</a> : Boolean<div class="summaryTableDescription">[read-only]
Contains true if the element has 3D Matrix.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#height" class="signatureLink">height</a> : Number<div class="summaryTableDescription"></div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#horizontalCenter" class="signatureLink">horizontalCenter</a> : Object<div class="summaryTableDescription">
The horizontal distance in pixels from the center of the component to the
center of the anchor target's content area.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#horizontalScrollPosition" class="signatureLink">horizontalScrollPosition</a> : Number<div class="summaryTableDescription">
The x coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#includeInLayout" class="signatureLink">includeInLayout</a> : Boolean<div class="summaryTableDescription">
Specifies whether this component is included in the layout of the
parent container.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#is3D" class="signatureLink">is3D</a> : Boolean<div class="summaryTableDescription">[read-only]
Contains true when the element is in 3D.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutDirectionElement.html#layoutDirection" class="signatureLink">layoutDirection</a> : String<div class="summaryTableDescription">
Specifies the desired layout direction for an element: one of LayoutDirection.LTR
(left to right), LayoutDirection.RTL (right to left), or null (inherit).</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutDirectionElement.html">ILayoutDirectionElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#left" class="signatureLink">left</a> : Object<div class="summaryTableDescription">
The horizontal distance in pixels from the left edge of the component to the
anchor target's left edge.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#owner" class="signatureLink">owner</a> : DisplayObjectContainer<div class="summaryTableDescription">
The owner of this IVisualElement object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#parent" class="signatureLink">parent</a> : DisplayObjectContainer<div class="summaryTableDescription">[read-only]
The parent container or component for this component.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#percentHeight" class="signatureLink">percentHeight</a> : Number<div class="summaryTableDescription">
Specifies the height of a component as a percentage
of its parent's size.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#percentWidth" class="signatureLink">percentWidth</a> : Number<div class="summaryTableDescription">
Specifies the width of a component as a percentage
of its parent's size.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#postLayoutTransformOffsets" class="signatureLink">postLayoutTransformOffsets</a> : <a href="../../mx/geom/TransformOffsets.html">TransformOffsets</a><div class="summaryTableDescription">
Defines a set of adjustments that can be applied to the object's
transform in a way that is invisible to its parent's layout.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#right" class="signatureLink">right</a> : Object<div class="summaryTableDescription">
The horizontal distance in pixels from the right edge of the component to the
anchor target's right edge.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#top" class="signatureLink">top</a> : Object<div class="summaryTableDescription">
The vertical distance in pixels from the top edge of the component to the
anchor target's top edge.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/ILayoutElement.html#verticalCenter" class="signatureLink">verticalCenter</a> : Object<div class="summaryTableDescription">
The vertical distance in pixels from the center of the component to the
center of the anchor target's content area.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><a href="#verticalScrollPosition" class="signatureLink">verticalScrollPosition</a> : Number<div class="summaryTableDescription">
The y coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#visible" class="signatureLink">visible</a> : Boolean<div class="summaryTableDescription">
Controls the visibility of this visual element.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#width" class="signatureLink">width</a> : Number<div class="summaryTableDescription"></div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#x" class="signatureLink">x</a> : Number<div class="summaryTableDescription"></div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/core/IVisualElement.html#y" class="signatureLink">y</a> : Number<div class="summaryTableDescription"></div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/IVisualElement.html">IVisualElement</a></td></tr></table></div><a name="methodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Methods </div><div class="showHideLinks"><div id="hideInheritedMethod" class="hideInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(false,'Method');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Public Methods</a></div><div id="showInheritedMethod" class="showInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(true,'Method');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Public Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableMethod"><tr><th>&nbsp;</th><th colspan="2">Method</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getBoundsXAtSize()" class="signatureLink">getBoundsXAtSize</a>(width:Number, height:Number, postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the x coordinate of the element's bounds at the specified element size.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getBoundsYAtSize()" class="signatureLink">getBoundsYAtSize</a>(width:Number, height:Number, postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the y coordinate of the element's bounds at the specified element size.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#getHorizontalScrollPositionDelta()" class="signatureLink">getHorizontalScrollPositionDelta</a>(navigationUnit:uint):Number</div><div class="summaryTableDescription">
Returns the amount to add to the viewport's current
horizontalScrollPosition to scroll by the requested scrolling unit.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutBoundsHeight()" class="signatureLink">getLayoutBoundsHeight</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's layout height.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutBoundsWidth()" class="signatureLink">getLayoutBoundsWidth</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's layout width.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutBoundsX()" class="signatureLink">getLayoutBoundsX</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the x coordinate that the element uses to draw on screen.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutBoundsY()" class="signatureLink">getLayoutBoundsY</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the y coordinate that the element uses to draw on screen.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutMatrix()" class="signatureLink">getLayoutMatrix</a>():Matrix</div><div class="summaryTableDescription">
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getLayoutMatrix3D()" class="signatureLink">getLayoutMatrix3D</a>():Matrix3D</div><div class="summaryTableDescription">
Returns the layout transform Matrix3D for this element.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getMaxBoundsHeight()" class="signatureLink">getMaxBoundsHeight</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's maximum height.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getMaxBoundsWidth()" class="signatureLink">getMaxBoundsWidth</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's maximum width.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getMinBoundsHeight()" class="signatureLink">getMinBoundsHeight</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's minimum height.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getMinBoundsWidth()" class="signatureLink">getMinBoundsWidth</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's minimum width.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getPreferredBoundsHeight()" class="signatureLink">getPreferredBoundsHeight</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's preferred height.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#getPreferredBoundsWidth()" class="signatureLink">getPreferredBoundsWidth</a>(postLayoutTransform:Boolean = true):Number</div><div class="summaryTableDescription">
Returns the element's preferred width.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class=""><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol">&nbsp;</td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#getVerticalScrollPositionDelta()" class="signatureLink">getVerticalScrollPositionDelta</a>(navigationUnit:uint):Number</div><div class="summaryTableDescription">
Returns the amount to add to the viewport's current
verticalScrollPosition to scroll by the requested scrolling unit.</div></td><td class="summaryTableOwnerCol">IViewport</td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutDirectionElement.html#invalidateLayoutDirection()" class="signatureLink">invalidateLayoutDirection</a>():void</div><div class="summaryTableDescription">
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutDirectionElement.html">ILayoutDirectionElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#setLayoutBoundsPosition()" class="signatureLink">setLayoutBoundsPosition</a>(x:Number, y:Number, postLayoutTransform:Boolean = true):void</div><div class="summaryTableDescription">
Sets the coordinates that the element uses to draw on screen.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#setLayoutBoundsSize()" class="signatureLink">setLayoutBoundsSize</a>(width:Number, height:Number, postLayoutTransform:Boolean = true):void</div><div class="summaryTableDescription">
Sets the layout size of the element.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#setLayoutMatrix()" class="signatureLink">setLayoutMatrix</a>(value:Matrix, invalidateLayout:Boolean):void</div><div class="summaryTableDescription">
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#setLayoutMatrix3D()" class="signatureLink">setLayoutMatrix3D</a>(value:Matrix3D, invalidateLayout:Boolean):void</div><div class="summaryTableDescription">
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol">&nbsp;</td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/core/ILayoutElement.html#transformAround()" class="signatureLink">transformAround</a>(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void</div><div class="summaryTableDescription">
A utility method to update the rotation, scale, and translation of the
transform while keeping a particular point, specified in the component's
own coordinate space, fixed in the parent's coordinate space.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/core/ILayoutElement.html">ILayoutElement</a></td></tr></table></div><script language="javascript" type="text/javascript"><!--
showHideInherited();
--></script><div class="MainContent"><div class="detailSectionHeader">Property Detail</div><a name="propertyDetail"></a><a name="clipAndEnableScrolling"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">clipAndEnableScrolling</td><td class="detailHeaderType">property</td></tr></table><div class="detailBody"><code>clipAndEnableScrolling:Boolean</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
If <code>true</code>, specifies to clip the children to the boundaries of the viewport.
If <code>false</code>, the container children extend past the container boundaries,
regardless of the size specification of the component.
</p><p> The default value is <code>false</code>.</p><br/><span class="label"> Implementation </span><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function get clipAndEnableScrolling():Boolean</code><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function set clipAndEnableScrolling(value:Boolean):void</code><br/><p><span class="label">See also</span></p><div class="seeAlso"><a href="../../spark/layouts/supportClasses/LayoutBase.html#updateScrollRect" target="">spark.layouts.supportClasses.LayoutBase.updateScrollRect</a><br/><a href="IViewport.html#verticalScrollPosition" target="">verticalScrollPosition</a><br/><a href="IViewport.html#horizontalScrollPosition" target="">horizontalScrollPosition</a></div></div><a name="propertyDetail"></a><a name="contentHeight"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">contentHeight</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>contentHeight:Number</code>&nbsp;&nbsp;[read-only] <p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
The height of the viewport's content.
If <code>clipAndEnabledScrolling</code> is true, the viewport's
<code>contentHeight</code> defines the limit for vertical scrolling
and the viewport's actual height defines how much of the content is visible.
To scroll through the content vertically, vary the
<code>verticalScrollPosition</code> between 0 and
<code>contentHeight - height</code>.
<p>Implementations of this property must be Bindable and
must generate events of type <code>propertyChange</code>.</p>
</p><br/><span class="label"> Implementation </span><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function get contentHeight():Number</code><br/></div><a name="propertyDetail"></a><a name="contentWidth"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">contentWidth</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>contentWidth:Number</code>&nbsp;&nbsp;[read-only] <p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
The width of the viewport's contents.
If <code>clipAndEnabledScrolling</code> is true, the viewport's
<code>contentWidth</code> defines the limit for horizontal scrolling
and the viewport's actual width defines how much of the content is visible.
To scroll through the content horizontally, vary the
<code>horizontalScrollPosition</code> between 0 and
<code>contentWidth - width</code>.
<p>Implementations of this property must be Bindable and
must generate events of type <code>propertyChange</code>.</p>
</p><br/><span class="label"> Implementation </span><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function get contentWidth():Number</code><br/></div><a name="propertyDetail"></a><a name="horizontalScrollPosition"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">horizontalScrollPosition</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>horizontalScrollPosition:Number</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
The x coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component.
If <code>clipAndEnableScrolling</code> is <code>true</code>, setting this property
typically causes the viewport to be set to:
<pre>
new Rectangle(horizontalScrollPosition, verticalScrollPosition, width, height)
</pre>
Implementations of this property must be Bindable and
must generate events of type <code>propertyChange</code>.
</p><p> The default value is <code>0</code>.</p><br/><span class="label"> Implementation </span><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function get horizontalScrollPosition():Number</code><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function set horizontalScrollPosition(value:Number):void</code><br/><p><span class="label">See also</span></p><div class="seeAlso"><a href="IViewport.html#target" target="">target</a><br/><a href="IViewport.html#verticalScrollPosition" target="">verticalScrollPosition</a></div></div><a name="propertyDetail"></a><a name="verticalScrollPosition"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">verticalScrollPosition</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code>verticalScrollPosition:Number</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
The y coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component.
If <code>clipAndEnableScrolling</code> is <code>true</code>, setting this property
typically causes the viewport to be set to:
<pre>
new Rectangle(horizontalScrollPosition, verticalScrollPosition, width, height)
</pre>
Implementations of this property must be Bindable and
must generate events of type <code>propertyChange</code>.
</p><p> The default value is <code>0</code>.</p><br/><span class="label"> Implementation </span><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function get verticalScrollPosition():Number</code><br/><code>&nbsp;&nbsp;&nbsp;&nbsp;public function set verticalScrollPosition(value:Number):void</code><br/><p><span class="label">See also</span></p><div class="seeAlso"><a href="IViewport.html#horizontalScrollPosition" target="">horizontalScrollPosition</a></div></div><a name="methodDetail"></a><div class="detailSectionHeader">Method Detail</div><a name="getHorizontalScrollPositionDelta()"></a><a name="getHorizontalScrollPositionDelta(uint)"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">getHorizontalScrollPositionDelta</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">method</td></tr></table><div class="detailBody"><code> public function getHorizontalScrollPositionDelta(navigationUnit:uint):Number</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
Returns the amount to add to the viewport's current
<code>horizontalScrollPosition</code> to scroll by the requested scrolling unit.
</p><p><span class="label"> Parameters </span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20px"></td><td><code><span class="label">navigationUnit</span>:uint</code> &mdash; The amount to scroll.
The value must be one of the following spark.core.NavigationUnit
constants:
<ul>
<li><code>LEFT</code></li>
<li><code>RIGHT</code></li>
<li><code>PAGE_LEFT</code></li>
<li><code>PAGE_RIGHT</code></li>
<li><code>HOME</code></li>
<li><code>END</code></li>
</ul>
To scroll by a single column, use <code>LEFT</code> or <code>RIGHT</code>.
To scroll to the first or last column, use <code>HOME</code> or <code>END</code>.
</td></tr></table></p><p></p><span class="label">Returns</span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20"></td><td><code>Number</code> &mdash; The number of pixels to add to <code>horizontalScrollPosition</code>.
</td></tr></table><p><span class="label">See also</span></p><div class="seeAlso"><a href="NavigationUnit.html" target="">spark.core.NavigationUnit</a></div></div><a name="getVerticalScrollPositionDelta()"></a><a name="getVerticalScrollPositionDelta(uint)"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">getVerticalScrollPositionDelta</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">method</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div class="detailBody"><code> public function getVerticalScrollPositionDelta(navigationUnit:uint):Number</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version :&nbsp;</b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version :&nbsp;</b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions :&nbsp;</b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p>
Returns the amount to add to the viewport's current
<code>verticalScrollPosition</code> to scroll by the requested scrolling unit.
</p><p><span class="label"> Parameters </span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20px"></td><td><code><span class="label">navigationUnit</span>:uint</code> &mdash; The amount to scroll.
The value of unit must be one of the following spark.core.NavigationUnit
constants:
<ul>
<li><code>UP</code></li>
<li><code>DOWN</code></li>
<li><code>PAGE_UP</code></li>
<li><code>PAGE_DOWN</code></li>
<li><code>HOME</code></li>
<li><code>END</code></li>
</ul>
To scroll by a single row use <code>UP</code> or <code>DOWN</code>.
To scroll to the first or last row, use <code>HOME</code> or <code>END</code>.
</td></tr></table></p><p></p><span class="label">Returns</span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20"></td><td><code>Number</code> &mdash; The number of pixels to add to <code>verticalScrollPosition</code>.
</td></tr></table><p><span class="label">See also</span></p><div class="seeAlso"><a href="NavigationUnit.html" target="">spark.core.NavigationUnit</a></div></div><a name="includeExamplesSummary"></a><div class="detailSectionHeader">Examples</div><div class="exampleHeader">IViewportExample.mxml</div><div class="detailBody"><div class="listing"><pre>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--&gt;
&lt;!-- Simple example to demonstrate Spark IViewport interface --&gt;
&lt;s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark" &gt;
&lt;s:layout&gt;
&lt;s:HorizontalLayout/&gt;
&lt;/s:layout&gt;
&lt;s:Panel title="IViewport Component Example"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0"&gt;
&lt;s:Label text="The Group container implements IViewport. Therefore, you can clip its contents and use it with scrollbars."
color="blue"
top="10"/&gt;
&lt;s:Group id="myGroup" width="100" height="100"
clipAndEnableScrolling="true"
horizontalScrollPosition="50" verticalScrollPosition="50"
left="100" top="40"&gt;
&lt;mx:Image width="300" height="400"
source="@Embed(source='/assets/logo.jpg')"/&gt;
&lt;/s:Group&gt;
&lt;s:VScrollBar viewport="{myGroup}" height="100" left="210" top="40"/&gt;
&lt;s:HScrollBar viewport="{myGroup}" width="100" left="100" top="150"/&gt;
&lt;/s:Panel&gt;
&lt;/s:Application&gt;
</pre></div><script language="javascript" type="text/javascript"><!-- AC_FL_RunContent( "src", "examples/IViewportExample", "width", "100%",
"height","400px", "salign", "TL", "id", "example1", "quality", "high", "bgcolor", "", "name",
"example1", "flashvars","", "allowScriptAccess","sameDomain", "type",
"application/x-shockwave-flash","pluginspage", "http://www.macromedia.com/go/getflashplayer" ); --></script></div><br/><br/><hr><br/><p></p><center class="copyright"><footer>The Apache Software Foundation</footer><br/>Wed Nov 15 2017, 09:50 AM +01:00 </center></div></body></html><!--The Apache Software Foundation<br/>Wed Nov 15 2017, 09:50 AM +01:00 -->