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Widget (libgdx API)
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com.badlogic.gdx.scenes.scene2d.ui</FONT>
<BR>
Class Widget</H2>
<PRE>
java.lang.Object
  <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">com.badlogic.gdx.scenes.scene2d.Actor</A>
      <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>com.badlogic.gdx.scenes.scene2d.ui.Widget</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/ComboBox.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">ComboBox</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Image.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">Image</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Label.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">Label</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/List.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">List</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Slider.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">Slider</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/TextField.html" title="class in com.badlogic.gdx.scenes.scene2d.ui">TextField</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public abstract class <B>Widget</B><DT>extends <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A><DT>implements <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></DL>
</PRE>

<P>
Base class for all UI widgets. A widget implements the <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d"><CODE>Layout</CODE></A> interface which has a couple of features.</p>
 
 A widget has a preferred width and height which it will use if possible, e.g. if it is not in a <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/tablelayout/Table.html" title="class in com.badlogic.gdx.scenes.scene2d.ui.tablelayout"><CODE>Table</CODE></A> or a
 <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/SplitPane.html" title="class in com.badlogic.gdx.scenes.scene2d.ui"><CODE>SplitPane</CODE></A> or a <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/ScrollPane.html" title="class in com.badlogic.gdx.scenes.scene2d.ui"><CODE>ScrollPane</CODE></A>. In case it is contained in one of the aforementioned containers, the preferred width
 and height will be used to guide the layouting mechanism employed by those containers.</p>
 
 A widget can be invalidated, e.g. by a Container changing its available space in the layout, in which case it will layout
 itself at the next oportunity to do so.</p>
 
 Invalidation can also be triggered manually via a call to <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#invalidate()"><CODE>invalidate()</CODE></A> or <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#invalidateHierarchy()"><CODE>invalidateHierarchy()</CODE></A>. The former
 will tell the Widget to only invalidate itself. The later will also invalidate all the widget's parents. The later mechanism is
 used in case the widget was modified and the container it is contained in must relayout itself due to this modification as
 well.
<P>

<P>
<DL>
<DT><B>Author:</B></DT>
  <DD>mzechner</DD>
</DL>
<HR>

<P>
<!-- =========== FIELD SUMMARY =========== -->

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#invalidated">invalidated</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_com.badlogic.gdx.scenes.scene2d.Actor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from class com.badlogic.gdx.scenes.scene2d.<A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#actions">actions</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#color">color</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#height">height</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#name">name</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#originX">originX</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#originY">originY</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#parent">parent</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#rotation">rotation</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#scaleX">scaleX</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#scaleY">scaleY</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#touchable">touchable</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#visible">visible</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#width">width</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#x">x</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#y">y</A></CODE></TD>
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&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#Widget()">Widget</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new widget without a name or preferred size.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#Widget(java.lang.String)">Widget</A></B>(java.lang.String&nbsp;name)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new widget with the preferred width and height</TD>
</TR>
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<!-- ========== METHOD SUMMARY =========== -->

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#getMaxHeight()">getMaxHeight</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#getMaxWidth()">getMaxWidth</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#getMinHeight()">getMinHeight</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#getMinWidth()">getMinWidth</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#hit(float, float)">hit</A></B>(float&nbsp;x,
    float&nbsp;y)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#invalidate()">invalidate</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Invalidates this widget, causing it to relayout itself at the next oportunity.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/ui/Widget.html#invalidateHierarchy()">invalidateHierarchy</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Invalidates this widget and all its parents, causing all involved widgets to relayout themselves at the next oportunity.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_com.badlogic.gdx.scenes.scene2d.Actor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.badlogic.gdx.scenes.scene2d.<A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#act(float)">act</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#action(com.badlogic.gdx.scenes.scene2d.Action)">action</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#clearActions()">clearActions</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#draw(com.badlogic.gdx.graphics.g2d.SpriteBatch, float)">draw</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#isMarkedToRemove()">isMarkedToRemove</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#keyDown(int)">keyDown</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#keyTyped(char)">keyTyped</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#keyUp(int)">keyUp</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#markToRemove(boolean)">markToRemove</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#remove()">remove</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#scrolled(int)">scrolled</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#toLocalCoordinates(com.badlogic.gdx.math.Vector2)">toLocalCoordinates</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#toString()">toString</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#touchDown(float, float, int)">touchDown</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#touchDragged(float, float, int)">touchDragged</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#touchMoved(float, float)">touchMoved</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#touchUp(float, float, int)">touchUp</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_com.badlogic.gdx.scenes.scene2d.Layout"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface com.badlogic.gdx.scenes.scene2d.<A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getPrefHeight()">getPrefHeight</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getPrefWidth()">getPrefWidth</A>, <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#layout()">layout</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->

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<B>Field Detail</B></FONT></TH>
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</TABLE>

<A NAME="invalidated"><!-- --></A><H3>
invalidated</H3>
<PRE>
protected boolean <B>invalidated</B></PRE>
<DL>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<B>Constructor Detail</B></FONT></TH>
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</TABLE>

<A NAME="Widget()"><!-- --></A><H3>
Widget</H3>
<PRE>
public <B>Widget</B>()</PRE>
<DL>
<DD>Creates a new widget without a name or preferred size.
<P>
</DL>
<HR>

<A NAME="Widget(java.lang.String)"><!-- --></A><H3>
Widget</H3>
<PRE>
public <B>Widget</B>(java.lang.String&nbsp;name)</PRE>
<DL>
<DD>Creates a new widget with the preferred width and height
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name</DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<A NAME="getMinWidth()"><!-- --></A><H3>
getMinWidth</H3>
<PRE>
public float <B>getMinWidth</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getMinWidth()">getMinWidth</A></CODE> in interface <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getMinHeight()"><!-- --></A><H3>
getMinHeight</H3>
<PRE>
public float <B>getMinHeight</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getMinHeight()">getMinHeight</A></CODE> in interface <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getMaxWidth()"><!-- --></A><H3>
getMaxWidth</H3>
<PRE>
public float <B>getMaxWidth</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getMaxWidth()">getMaxWidth</A></CODE> in interface <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getMaxHeight()"><!-- --></A><H3>
getMaxHeight</H3>
<PRE>
public float <B>getMaxHeight</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#getMaxHeight()">getMaxHeight</A></CODE> in interface <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="invalidate()"><!-- --></A><H3>
invalidate</H3>
<PRE>
public void <B>invalidate</B>()</PRE>
<DL>
<DD>Invalidates this widget, causing it to relayout itself at the next oportunity.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html#invalidate()">invalidate</A></CODE> in interface <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Layout.html" title="interface in com.badlogic.gdx.scenes.scene2d">Layout</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="invalidateHierarchy()"><!-- --></A><H3>
invalidateHierarchy</H3>
<PRE>
public void <B>invalidateHierarchy</B>()</PRE>
<DL>
<DD>Invalidates this widget and all its parents, causing all involved widgets to relayout themselves at the next oportunity.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="hit(float, float)"><!-- --></A><H3>
hit</H3>
<PRE>
public <A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A> <B>hit</B>(float&nbsp;x,
                 float&nbsp;y)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#hit(float, float)">hit</A></CODE> in class <CODE><A HREF="../../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></CODE></DL>
</DD>
<DD><DL>
</DL>
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