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Qt.ItemDataRole
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com.trolltech.qt.core</FONT>
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Class Qt.ItemDataRole</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.trolltech.qt.core.Qt.ItemDataRole</B>
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<DT><B>Enclosing interface:</B><DD><A HREF="../../../../com/trolltech/qt/core/Qt.html" title="interface in com.trolltech.qt.core">Qt</A></DD>
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<DT><PRE>public static class <B>Qt.ItemDataRole</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
<p>Each item in the model has a set of data elements associated with it, each with its own role. The roles are used by the view to indicate to the model which type of data it needs.</p>
<p>The general purpose roles are:</p>
<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
<tr><td valign="top"><tt>DisplayRole</tt></td><td align="center" valign="top"><tt>0</tt></td><td valign="top">The key data to be rendered (usually text).</td></tr>
<tr><td valign="top"><tt>DecorationRole</tt></td><td align="center" valign="top"><tt>1</tt></td><td valign="top">The data to be rendered as a decoration (usually an icon).</td></tr>
<tr><td valign="top"><tt>EditRole</tt></td><td align="center" valign="top"><tt>2</tt></td><td valign="top">The data in a form suitable for editing in an editor.</td></tr>
<tr><td valign="top"><tt>ToolTipRole</tt></td><td align="center" valign="top"><tt>3</tt></td><td valign="top">The data displayed in the item's tooltip.</td></tr>
<tr><td valign="top"><tt>StatusTipRole</tt></td><td align="center" valign="top"><tt>4</tt></td><td valign="top">The data displayed in the status bar.</td></tr>
<tr><td valign="top"><tt>WhatsThisRole</tt></td><td align="center" valign="top"><tt>5</tt></td><td valign="top">The data displayed for the item in "What's This?" mode.</td></tr>
<tr><td valign="top"><tt>SizeHintRole</tt></td><td align="center" valign="top"><tt>13</tt></td><td valign="top">The size hint for the item that will be supplied to views.</td></tr>
</table></p>
<p>Roles describing appearance and meta data:</p>
<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
<tr><td valign="top"><tt>FontRole</tt></td><td align="center" valign="top"><tt>6</tt></td><td valign="top">The font used for items rendered with the default delegate.</td></tr>
<tr><td valign="top"><tt>TextAlignmentRole</tt></td><td align="center" valign="top"><tt>7</tt></td><td valign="top">The alignment of the text for items rendered with the default delegate.</td></tr>
<tr><td valign="top"><tt>BackgroundRole</tt></td><td align="center" valign="top"><tt>8</tt></td><td valign="top">The background brush used for items rendered with the default delegate.</td></tr>
<tr><td valign="top"><tt>BackgroundColorRole</tt></td><td align="center" valign="top"><tt>8</tt></td><td valign="top">This role is obsolete. Use <a href="Qt.html#ItemDataRole-enum"><tt>BackgroundRole</tt></a> instead.</td></tr>
<tr><td valign="top"><tt>ForegroundRole</tt></td><td align="center" valign="top"><tt>9</tt></td><td valign="top">The foreground brush (text color, typically) used for items rendered with the default delegate.</td></tr>
<tr><td valign="top"><tt>TextColorRole</tt></td><td align="center" valign="top"><tt>9</tt></td><td valign="top">This role is obsolete. Use <a href="Qt.html#ItemDataRole-enum"><tt>ForegroundRole</tt></a> instead.</td></tr>
<tr><td valign="top"><tt>CheckStateRole</tt></td><td align="center" valign="top"><tt>10</tt></td><td valign="top">This role is used to obtain the checked state of an item (see <tt>Qt::CheckState</tt>).</td></tr>
</table></p>
<p>Accessibility roles:</p>
<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
<tr><td valign="top"><tt>AccessibleTextRole</tt></td><td align="center" valign="top"><tt>11</tt></td><td valign="top">The text to be used by accessibility extensions and plugins, such as screen readers.</td></tr>
<tr><td valign="top"><tt>AccessibleDescriptionRole</tt></td><td align="center" valign="top"><tt>12</tt></td><td valign="top">A description of the item for accessibility purposes.</td></tr>
</table></p>
<p>User roles:</p>
<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
<tr><td valign="top"><tt>UserRole</tt></td><td align="center" valign="top"><tt>32</tt></td><td valign="top">The first role that can be used for application-specific purposes.</td></tr>
</table></p>
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#AccessibleDescriptionRole">AccessibleDescriptionRole</A></B></CODE>
<BR>
A description of the item for accessibility purposes.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#AccessibleTextRole">AccessibleTextRole</A></B></CODE>
<BR>
The text to be used by accessibility extensions and plugins, such as screen readers.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#BackgroundRole">BackgroundRole</A></B></CODE>
<BR>
The background brush used for items rendered with the default delegate.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#CheckStateRole">CheckStateRole</A></B></CODE>
<BR>
This role is used to obtain the checked state of an item (see <tt>Qt::CheckState</tt>).</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#DecorationRole">DecorationRole</A></B></CODE>
<BR>
The data to be rendered as a decoration (usually an icon).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#DisplayRole">DisplayRole</A></B></CODE>
<BR>
The key data to be rendered (usually text).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#EditRole">EditRole</A></B></CODE>
<BR>
The data in a form suitable for editing in an editor.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#FontRole">FontRole</A></B></CODE>
<BR>
The font used for items rendered with the default delegate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#ForegroundRole">ForegroundRole</A></B></CODE>
<BR>
The foreground brush (text color, typically) used for items rendered with the default delegate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#SizeHintRole">SizeHintRole</A></B></CODE>
<BR>
The size hint for the item that will be supplied to views.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#StatusTipRole">StatusTipRole</A></B></CODE>
<BR>
The data displayed in the status bar.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#TextAlignmentRole">TextAlignmentRole</A></B></CODE>
<BR>
The alignment of the text for items rendered with the default delegate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#ToolTipRole">ToolTipRole</A></B></CODE>
<BR>
The data displayed in the item's tooltip.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#UserRole">UserRole</A></B></CODE>
<BR>
The first role that can be used for application-specific purposes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#WhatsThisRole">WhatsThisRole</A></B></CODE>
<BR>
The data displayed for the item in "What's This?" mode.</TD>
</TR>
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<TD><CODE><B><A HREF="../../../../com/trolltech/qt/core/Qt.ItemDataRole.html#Qt.ItemDataRole()">Qt.ItemDataRole</A></B>()</CODE>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="DisplayRole"><!-- --></A><H3>
DisplayRole</H3>
<PRE>
public static final int <B>DisplayRole</B></PRE>
<DL>
<DD><p>The key data to be rendered (usually text).</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.DisplayRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="DecorationRole"><!-- --></A><H3>
DecorationRole</H3>
<PRE>
public static final int <B>DecorationRole</B></PRE>
<DL>
<DD><p>The data to be rendered as a decoration (usually an icon).</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.DecorationRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="EditRole"><!-- --></A><H3>
EditRole</H3>
<PRE>
public static final int <B>EditRole</B></PRE>
<DL>
<DD><p>The data in a form suitable for editing in an editor.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.EditRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="ToolTipRole"><!-- --></A><H3>
ToolTipRole</H3>
<PRE>
public static final int <B>ToolTipRole</B></PRE>
<DL>
<DD><p>The data displayed in the item's tooltip.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.ToolTipRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="StatusTipRole"><!-- --></A><H3>
StatusTipRole</H3>
<PRE>
public static final int <B>StatusTipRole</B></PRE>
<DL>
<DD><p>The data displayed in the status bar.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.StatusTipRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="WhatsThisRole"><!-- --></A><H3>
WhatsThisRole</H3>
<PRE>
public static final int <B>WhatsThisRole</B></PRE>
<DL>
<DD><p>The data displayed for the item in "What's This?" mode.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.WhatsThisRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="FontRole"><!-- --></A><H3>
FontRole</H3>
<PRE>
public static final int <B>FontRole</B></PRE>
<DL>
<DD><p>The font used for items rendered with the default delegate.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.FontRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="TextAlignmentRole"><!-- --></A><H3>
TextAlignmentRole</H3>
<PRE>
public static final int <B>TextAlignmentRole</B></PRE>
<DL>
<DD><p>The alignment of the text for items rendered with the default delegate.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.TextAlignmentRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="BackgroundRole"><!-- --></A><H3>
BackgroundRole</H3>
<PRE>
public static final int <B>BackgroundRole</B></PRE>
<DL>
<DD><p>The background brush used for items rendered with the default delegate.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.BackgroundRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="ForegroundRole"><!-- --></A><H3>
ForegroundRole</H3>
<PRE>
public static final int <B>ForegroundRole</B></PRE>
<DL>
<DD><p>The foreground brush (text color, typically) used for items rendered with the default delegate.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.ForegroundRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CheckStateRole"><!-- --></A><H3>
CheckStateRole</H3>
<PRE>
public static final int <B>CheckStateRole</B></PRE>
<DL>
<DD><p>This role is used to obtain the checked state of an item (see <tt>Qt::CheckState</tt>).</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.CheckStateRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="AccessibleTextRole"><!-- --></A><H3>
AccessibleTextRole</H3>
<PRE>
public static final int <B>AccessibleTextRole</B></PRE>
<DL>
<DD><p>The text to be used by accessibility extensions and plugins, such as screen readers.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.AccessibleTextRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="AccessibleDescriptionRole"><!-- --></A><H3>
AccessibleDescriptionRole</H3>
<PRE>
public static final int <B>AccessibleDescriptionRole</B></PRE>
<DL>
<DD><p>A description of the item for accessibility purposes.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.AccessibleDescriptionRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="SizeHintRole"><!-- --></A><H3>
SizeHintRole</H3>
<PRE>
public static final int <B>SizeHintRole</B></PRE>
<DL>
<DD><p>The size hint for the item that will be supplied to views.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.SizeHintRole">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="UserRole"><!-- --></A><H3>
UserRole</H3>
<PRE>
public static final int <B>UserRole</B></PRE>
<DL>
<DD><p>The first role that can be used for application-specific purposes.</p>
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.trolltech.qt.core.Qt.ItemDataRole.UserRole">Constant Field Values</A></DL>
</DL>
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<A NAME="Qt.ItemDataRole()"><!-- --></A><H3>
Qt.ItemDataRole</H3>
<PRE>
public <B>Qt.ItemDataRole</B>()</PRE>
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