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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QSplitter Class Reference</h1>
<p>The QSplitter class implements a splitter widget.
<a href="#details">More...</a>
<p><tt>#include <<a href="qsplitter-h.html">qsplitter.h</a>></tt>
<p>Inherits <a href="qframe.html">QFrame</a>.
<p><a href="qsplitter-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn>enum <a href="#ResizeMode-enum"><b>ResizeMode</b></a> { Stretch, KeepSize, FollowSizeHint, Auto }</li>
<li class=fn><a href="#QSplitter"><b>QSplitter</b></a> ( QWidget * parent = 0, const char * name = 0 )</li>
<li class=fn><a href="#QSplitter-2"><b>QSplitter</b></a> ( Orientation o, QWidget * parent = 0, const char * name = 0 )</li>
<li class=fn><a href="#~QSplitter"><b>~QSplitter</b></a> ()</li>
<li class=fn>virtual void <a href="#setOrientation"><b>setOrientation</b></a> ( Orientation )</li>
<li class=fn>Orientation <a href="#orientation"><b>orientation</b></a> () const</li>
<li class=fn>void <a href="#setChildrenCollapsible"><b>setChildrenCollapsible</b></a> ( bool )</li>
<li class=fn>bool <a href="#childrenCollapsible"><b>childrenCollapsible</b></a> () const</li>
<li class=fn>void <a href="#setCollapsible"><b>setCollapsible</b></a> ( QWidget * w, bool collapse )</li>
<li class=fn>virtual void <a href="#setResizeMode"><b>setResizeMode</b></a> ( QWidget * w, ResizeMode mode )</li>
<li class=fn>virtual void <a href="#setOpaqueResize"><b>setOpaqueResize</b></a> ( bool = TRUE )</li>
<li class=fn>bool <a href="#opaqueResize"><b>opaqueResize</b></a> () const</li>
<li class=fn>void <a href="#moveToFirst"><b>moveToFirst</b></a> ( QWidget * w )</li>
<li class=fn>void <a href="#moveToLast"><b>moveToLast</b></a> ( QWidget * w )</li>
<li class=fn>void <a href="#refresh"><b>refresh</b></a> ()</li>
<li class=fn>QValueList<int> <a href="#sizes"><b>sizes</b></a> () const</li>
<li class=fn>void <a href="#setSizes"><b>setSizes</b></a> ( QValueList<int> list )</li>
<li class=fn>int <a href="#handleWidth"><b>handleWidth</b></a> () const</li>
<li class=fn>void <a href="#setHandleWidth"><b>setHandleWidth</b></a> ( int )</li>
</ul>
<h2>Properties</h2>
<ul>
<li class=fn>bool <a href="#childrenCollapsible-prop"><b>childrenCollapsible</b></a> - whether child widgets can be resized down to size 0 by the user</li>
<li class=fn>int <a href="#handleWidth-prop"><b>handleWidth</b></a> - the width of the splitter handle</li>
<li class=fn>bool <a href="#opaqueResize-prop"><b>opaqueResize</b></a> - whether resizing is opaque</li>
<li class=fn>Orientation <a href="#orientation-prop"><b>orientation</b></a> - the orientation of the splitter</li>
</ul>
<h2>Protected Members</h2>
<ul>
<li class=fn>virtual void <a href="#childEvent"><b>childEvent</b></a> ( QChildEvent * c )</li>
<li class=fn>int <a href="#idAfter"><b>idAfter</b></a> ( QWidget * w ) const</li>
<li class=fn>void <a href="#moveSplitter"><b>moveSplitter</b></a> ( QCOORD p, int id )</li>
<li class=fn>virtual void drawSplitter ( QPainter * p, QCOORD x, QCOORD y, QCOORD w, QCOORD h ) <em>(obsolete)</em></li>
<li class=fn>int <a href="#adjustPos"><b>adjustPos</b></a> ( int pos, int id )</li>
<li class=fn>virtual void <a href="#setRubberband"><b>setRubberband</b></a> ( int p )</li>
<li class=fn>void <a href="#getRange"><b>getRange</b></a> ( int id, int * min, int * max )</li>
</ul>
<h2>Related Functions</h2>
<ul>
<li class=fn>QTextStream & <a href="#operator-lt-lt"><b>operator<<</b></a> ( QTextStream & ts, const QSplitter & splitter )</li>
<li class=fn>QTextStream & <a href="#operator-gt-gt"><b>operator>></b></a> ( QTextStream & ts, QSplitter & splitter )</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QSplitter class implements a splitter widget.
<p>
<p> A splitter lets the user control the size of child widgets by
dragging the boundary between the children. Any number of widgets
may be controlled by a single splitter.
<p> To show a <a href="qlistbox.html">QListBox</a>, a <a href="qlistview.html">QListView</a> and a <a href="qtextedit.html">QTextEdit</a> side by side:
<pre>
QSplitter *split = new QSplitter( parent );
<a href="qlistbox.html">QListBox</a> *lb = new <a href="qlistbox.html">QListBox</a>( split );
<a href="qlistview.html">QListView</a> *lv = new <a href="qlistview.html">QListView</a>( split );
<a href="qtextedit.html">QTextEdit</a> *ed = new <a href="qtextedit.html">QTextEdit</a>( split );
</pre>
<p> QSplitter lays out its children horizontally (side by side); you
can use <a href="#setOrientation">setOrientation</a>(QSplitter::Vertical) to lay out the
children vertically.
<p> By default, all widgets can be as large or as small as the user
wishes, between the <a href="qwidget.html#minimumSizeHint">minimumSizeHint</a>() (or <a href="qwidget.html#minimumSize">minimumSize</a>())
and <a href="qwidget.html#maximumSize">maximumSize</a>() of the widgets. Use <a href="#setResizeMode">setResizeMode</a>() to
specify that a widget should keep its size when the splitter is
resized, or set the stretch component of the <a href="qwidget.html#sizePolicy-prop">sizePolicy</a>.
<p> Although QSplitter normally resizes the children only at the end
of a resize operation, if you call <a href="#setOpaqueResize">setOpaqueResize</a>(TRUE) the
widgets are resized as often as possible.
<p> The initial distribution of size between the widgets is determined
by the initial size of each widget. You can also use <a href="#setSizes">setSizes</a>() to
set the sizes of all the widgets. The function <a href="#sizes">sizes</a>() returns the
sizes set by the user.
<p> If you <a href="qwidget.html#hide">hide</a>() a child its space will be distributed among the
other children. It will be reinstated when you <a href="qwidget.html#show">show</a>() it again. It
is also possible to reorder the widgets within the splitter using
<a href="#moveToFirst">moveToFirst</a>() and <a href="#moveToLast">moveToLast</a>().
<p> <img src=qsplitter-m.png> <img src=qsplitter-w.png>
<p> <p>See also <a href="qtabbar.html">QTabBar</a> and <a href="organizers.html">Organizers</a>.
<hr><h2>Member Type Documentation</h2>
<h3 class=fn><a name="ResizeMode-enum"></a>QSplitter::ResizeMode</h3>
<p> This enum type describes how QSplitter will resize each of its
child widgets.
<ul>
<li><tt>QSplitter::Auto</tt> - The widget will be resized according to the stretch
factors set in its <a href="qwidget.html#sizePolicy">sizePolicy</a>().
<li><tt>QSplitter::Stretch</tt> - The widget will be resized when the splitter
itself is resized.
<li><tt>QSplitter::KeepSize</tt> - QSplitter will try to keep the widget's size
unchanged.
<li><tt>QSplitter::FollowSizeHint</tt> - QSplitter will resize the widget when the
widget's size hint changes.
</ul>
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QSplitter"></a>QSplitter::QSplitter ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs a horizontal splitter with the <em>parent</em> and <em>name</em>
arguments being passed on to the <a href="qframe.html">QFrame</a> constructor.
<h3 class=fn><a name="QSplitter-2"></a>QSplitter::QSplitter ( <a href="qt.html#Orientation-enum">Orientation</a> o, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
</h3>
Constructs a splitter with orientation <em>o</em> with the <em>parent</em> and
<em>name</em> arguments being passed on to the <a href="qframe.html">QFrame</a> constructor.
<h3 class=fn><a name="~QSplitter"></a>QSplitter::~QSplitter ()
</h3>
Destroys the splitter and any children.
<h3 class=fn>int <a name="adjustPos"></a>QSplitter::adjustPos ( int pos, int id )<tt> [protected]</tt>
</h3>
Returns the closest legal position to <em>pos</em> of the widget with ID
<em>id</em>.
<p> <p>See also <a href="#idAfter">idAfter</a>().
<h3 class=fn>void <a name="childEvent"></a>QSplitter::childEvent ( <a href="qchildevent.html">QChildEvent</a> * c )<tt> [virtual protected]</tt>
</h3>
Tells the splitter that the child widget described by <em>c</em> has
been inserted or removed.
<p>Reimplemented from <a href="qobject.html#childEvent">QObject</a>.
<h3 class=fn>bool <a name="childrenCollapsible"></a>QSplitter::childrenCollapsible () const
</h3><p>Returns TRUE if child widgets can be resized down to size 0 by the user; otherwise returns FALSE.
See the <a href="qsplitter.html#childrenCollapsible-prop">"childrenCollapsible"</a> property for details.
<h3 class=fn>void <a name="drawSplitter"></a>QSplitter::drawSplitter ( <a href="qpainter.html">QPainter</a> * p, QCOORD x, QCOORD y, QCOORD w, QCOORD h )<tt> [virtual protected]</tt>
</h3>
<b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> Draws the splitter handle in the rectangle described by <em>x</em>, <em>y</em>,
<em>w</em>, <em>h</em> using painter <em>p</em>.
<p>See also <a href="qstyle.html#drawPrimitive">QStyle::drawPrimitive</a>().
<h3 class=fn>void <a name="getRange"></a>QSplitter::getRange ( int id, int * min, int * max )<tt> [protected]</tt>
</h3>
Returns the valid range of the splitter with ID <em>id</em> in <em>*min</em>
and <em>*max</em> if <em>min</em> and <em>max</em> are not 0.
<p> <p>See also <a href="#idAfter">idAfter</a>().
<h3 class=fn>int <a name="handleWidth"></a>QSplitter::handleWidth () const
</h3><p>Returns the width of the splitter handle.
See the <a href="qsplitter.html#handleWidth-prop">"handleWidth"</a> property for details.
<h3 class=fn>int <a name="idAfter"></a>QSplitter::idAfter ( <a href="qwidget.html">QWidget</a> * w ) const<tt> [protected]</tt>
</h3>
Returns the ID of the widget to the right of or below the widget
<em>w</em>, or 0 if there is no such widget (i.e. it is either not in
this QSplitter or <em>w</em> is at the end).
<h3 class=fn>void <a name="moveSplitter"></a>QSplitter::moveSplitter ( QCOORD p, int id )<tt> [protected]</tt>
</h3>
Moves the left/top edge of the splitter handle with ID <em>id</em> as
close as possible to position <em>p</em>, which is the distance from the
left (or top) edge of the widget.
<p> For Arabic, Hebrew and other right-to-left languages the layout is
reversed. <em>p</em> is then the distance from the right (or top) edge
of the widget.
<p> <p>See also <a href="#idAfter">idAfter</a>().
<h3 class=fn>void <a name="moveToFirst"></a>QSplitter::moveToFirst ( <a href="qwidget.html">QWidget</a> * w )
</h3>
Moves widget <em>w</em> to the leftmost/top position.
<p>Example: <a href="splitter-example.html#x1299">splitter/splitter.cpp</a>.
<h3 class=fn>void <a name="moveToLast"></a>QSplitter::moveToLast ( <a href="qwidget.html">QWidget</a> * w )
</h3>
Moves widget <em>w</em> to the rightmost/bottom position.
<h3 class=fn>bool <a name="opaqueResize"></a>QSplitter::opaqueResize () const
</h3><p>Returns TRUE if resizing is opaque; otherwise returns FALSE.
See the <a href="qsplitter.html#opaqueResize-prop">"opaqueResize"</a> property for details.
<h3 class=fn><a href="qt.html#Orientation-enum">Orientation</a> <a name="orientation"></a>QSplitter::orientation () const
</h3><p>Returns the orientation of the splitter.
See the <a href="qsplitter.html#orientation-prop">"orientation"</a> property for details.
<h3 class=fn>void <a name="refresh"></a>QSplitter::refresh ()
</h3>
<p> Updates the splitter's state. You should not need to call this
function.
<h3 class=fn>void <a name="setChildrenCollapsible"></a>QSplitter::setChildrenCollapsible ( bool )
</h3><p>Sets whether child widgets can be resized down to size 0 by the user.
See the <a href="qsplitter.html#childrenCollapsible-prop">"childrenCollapsible"</a> property for details.
<h3 class=fn>void <a name="setCollapsible"></a>QSplitter::setCollapsible ( <a href="qwidget.html">QWidget</a> * w, bool collapse )
</h3>
Sets whether the child widget <em>w</em> is collapsible to <em>collapse</em>.
<p> By default, children are collapsible, meaning that the user can
resize them down to size 0, even if they have a non-zero
<a href="qwidget.html#minimumSize">minimumSize</a>() or <a href="qwidget.html#minimumSizeHint">minimumSizeHint</a>(). This behavior can be changed
on a per-widget basis by calling this function, or globally for
all the widgets in the splitter by setting the <a href="#childrenCollapsible-prop">childrenCollapsible</a> property.
<p> <p>See also <a href="#childrenCollapsible-prop">childrenCollapsible</a>.
<h3 class=fn>void <a name="setHandleWidth"></a>QSplitter::setHandleWidth ( int )
</h3><p>Sets the width of the splitter handle.
See the <a href="qsplitter.html#handleWidth-prop">"handleWidth"</a> property for details.
<h3 class=fn>void <a name="setOpaqueResize"></a>QSplitter::setOpaqueResize ( bool = TRUE )<tt> [virtual]</tt>
</h3><p>Sets whether resizing is opaque.
See the <a href="qsplitter.html#opaqueResize-prop">"opaqueResize"</a> property for details.
<h3 class=fn>void <a name="setOrientation"></a>QSplitter::setOrientation ( <a href="qt.html#Orientation-enum">Orientation</a> )<tt> [virtual]</tt>
</h3><p>Sets the orientation of the splitter.
See the <a href="qsplitter.html#orientation-prop">"orientation"</a> property for details.
<h3 class=fn>void <a name="setResizeMode"></a>QSplitter::setResizeMode ( <a href="qwidget.html">QWidget</a> * w, <a href="qsplitter.html#ResizeMode-enum">ResizeMode</a> mode )<tt> [virtual]</tt>
</h3>
Sets resize mode of widget <em>w</em> to <em>mode</em>. (The default is <a href="#ResizeMode-enum">Auto</a>.)
<p>Examples: <a href="fileiconview-example.html#x894">fileiconview/mainwindow.cpp</a>, <a href="listviews-example.html#x161">listviews/listviews.cpp</a>, and <a href="splitter-example.html#x1301">splitter/splitter.cpp</a>.
<h3 class=fn>void <a name="setRubberband"></a>QSplitter::setRubberband ( int p )<tt> [virtual protected]</tt>
</h3>
Displays a rubber band at position <em>p</em>. If <em>p</em> is negative, the
rubber band is removed.
<h3 class=fn>void <a name="setSizes"></a>QSplitter::setSizes ( <a href="qvaluelist.html">QValueList</a><int> list )
</h3>
Sets the size parameters to the values given in the <em>list</em>. If
the splitter is horizontal, the values set the widths of each
widget going from left to right. If the splitter is vertical, the
values set the heights of each widget going from top to bottom.
Extra values in the <em>list</em> are ignored.
<p> If <em>list</em> contains too few values, the result is undefined but
the program will still be well-behaved.
<p> Note that the values in <em>list</em> should be the height/width that
the widgets should be resized to.
<p> <p>See also <a href="#sizes">sizes</a>().
<h3 class=fn><a href="qvaluelist.html">QValueList</a><int> <a name="sizes"></a>QSplitter::sizes () const
</h3>
Returns a list of the size parameters of all the widgets in this
splitter.
<p> If the splitter's orientation is horizontal, the list is a list of
widget widths; if the orientation is vertical, the list is a list
of widget heights.
<p> Giving the values to another splitter's <a href="#setSizes">setSizes</a>() function will
produce a splitter with the same layout as this one.
<p> Note that if you want to iterate over the list, you should iterate
over a copy, e.g.
<pre>
<a href="qvaluelist.html">QValueList</a><int> list = mySplitter.sizes();
QValueList<int>::Iterator it = list.<a href="qvaluelist.html#begin">begin</a>();
while( it != list.<a href="qvaluelist.html#end">end</a>() ) {
myProcessing( *it );
++it;
}
</pre>
<p> <p>See also <a href="#setSizes">setSizes</a>().
<hr><h2>Property Documentation</h2>
<h3 class=fn>bool <a name="childrenCollapsible-prop"></a>childrenCollapsible</h3>
<p>This property holds whether child widgets can be resized down to size 0 by the user.
<p>By default, children are collapsible. It is possible to enable
and disable the collapsing of individual children; see
<a href="#setCollapsible">setCollapsible</a>().
<p>Set this property's value with <a href="#setChildrenCollapsible">setChildrenCollapsible</a>() and get this property's value with <a href="#childrenCollapsible">childrenCollapsible</a>().
<h3 class=fn>int <a name="handleWidth-prop"></a>handleWidth</h3>
<p>This property holds the width of the splitter handle.
<p>
<p>Set this property's value with <a href="#setHandleWidth">setHandleWidth</a>() and get this property's value with <a href="#handleWidth">handleWidth</a>().
<h3 class=fn>bool <a name="opaqueResize-prop"></a>opaqueResize</h3>
<p>This property holds whether resizing is opaque.
<p>Opaque resizing is off by default.
<p>Set this property's value with <a href="#setOpaqueResize">setOpaqueResize</a>() and get this property's value with <a href="#opaqueResize">opaqueResize</a>().
<h3 class=fn><a href="qt.html#Orientation-enum">Orientation</a> <a name="orientation-prop"></a>orientation</h3>
<p>This property holds the orientation of the splitter.
<p>By default the orientation is horizontal (the widgets are side by
side). The possible orientations are <a href="qt.html#Orientation-enum">Horizontal</a> and
<a href="qt.html#Orientation-enum">Vertical</a>.
<p>Set this property's value with <a href="#setOrientation">setOrientation</a>() and get this property's value with <a href="#orientation">orientation</a>().
<hr><h2>Related Functions</h2>
<h3 class=fn><a href="qtextstream.html">QTextStream</a> & <a name="operator-lt-lt"></a>operator<< ( <a href="qtextstream.html">QTextStream</a> & ts, const <a href="qsplitter.html">QSplitter</a> & splitter )
</h3>
<p> Writes the sizes and the hidden state of the widgets in the
splitter <em>splitter</em> to the text stream <em>ts</em>.
<p> <p>See also <a href="#operator-gt-gt">operator>></a>(), <a href="#sizes">sizes</a>(), and <a href="qwidget.html#hidden-prop">QWidget::hidden</a>.
<h3 class=fn><a href="qtextstream.html">QTextStream</a> & <a name="operator-gt-gt"></a>operator>> ( <a href="qtextstream.html">QTextStream</a> & ts, <a href="qsplitter.html">QSplitter</a> & splitter )
</h3>
<p> Reads the sizes and the hidden state of the widgets in the
splitter <em>splitter</em> from the text stream <em>ts</em>. The sizes must
have been previously written by the <a href="#operator-lt-lt">operator<<</a>() function.
<p> <p>See also <a href="#operator-lt-lt">operator<<</a>(), <a href="#setSizes">setSizes</a>(), and <a href="qwidget.html#hide">QWidget::hide</a>().
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