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415 lines
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415 lines
25 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qabstractlayout.cpp:560 -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQLayout Class</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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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>TQLayout Class Reference</h1>
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<p>The TQLayout class is the base class of geometry managers.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qlayout-h.html">ntqlayout.h</a>></tt>
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<p>Inherits <a href="ntqobject.html">TQObject</a> and <a href="qlayoutitem.html">TQLayoutItem</a>.
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<p>Inherited by <a href="qgridlayout.html">TQGridLayout</a> and <a href="qboxlayout.html">TQBoxLayout</a>.
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<p><a href="qlayout-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn>enum <a href="#ResizeMode-enum"><b>ResizeMode</b></a> { FreeResize, Minimum, Fixed, Auto }</li>
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<li class=fn><a href="#TQLayout"><b>TQLayout</b></a> ( TQWidget * parent, int margin = 0, int spacing = -1, const char * name = 0 )</li>
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<li class=fn><a href="#TQLayout-2"><b>TQLayout</b></a> ( TQLayout * parentLayout, int spacing = -1, const char * name = 0 )</li>
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<li class=fn><a href="#TQLayout-3"><b>TQLayout</b></a> ( int spacing = -1, const char * name = 0 )</li>
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<li class=fn>int <a href="#margin"><b>margin</b></a> () const</li>
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<li class=fn>int <a href="#spacing"><b>spacing</b></a> () const</li>
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<li class=fn>virtual void <a href="#setMargin"><b>setMargin</b></a> ( int )</li>
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<li class=fn>virtual void <a href="#setSpacing"><b>setSpacing</b></a> ( int )</li>
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<li class=fn>void <a href="#setResizeMode"><b>setResizeMode</b></a> ( ResizeMode )</li>
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<li class=fn>ResizeMode <a href="#resizeMode"><b>resizeMode</b></a> () const</li>
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<li class=fn>virtual void <a href="#setMenuBar"><b>setMenuBar</b></a> ( TQMenuBar * w )</li>
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<li class=fn>TQMenuBar * <a href="#menuBar"><b>menuBar</b></a> () const</li>
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<li class=fn>TQWidget * <a href="#mainWidget"><b>mainWidget</b></a> ()</li>
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<li class=fn>bool <a href="#isTopLevel"><b>isTopLevel</b></a> () const</li>
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<li class=fn>virtual void <a href="#setAutoAdd"><b>setAutoAdd</b></a> ( bool b )</li>
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<li class=fn>bool <a href="#autoAdd"><b>autoAdd</b></a> () const</li>
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<li class=fn>virtual void <a href="#invalidate"><b>invalidate</b></a> ()</li>
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<li class=fn>bool <a href="#activate"><b>activate</b></a> ()</li>
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<li class=fn>void <a href="#add"><b>add</b></a> ( TQWidget * w )</li>
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<li class=fn>virtual void <a href="#addItem"><b>addItem</b></a> ( TQLayoutItem * item ) = 0</li>
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<li class=fn>void <a href="#remove"><b>remove</b></a> ( TQWidget * widget )</li>
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<li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( TQLayoutItem * item )</li>
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<li class=fn>virtual TQSizePolicy::ExpandData <a href="#expanding"><b>expanding</b></a> () const</li>
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<li class=fn>virtual TQSize <a href="#minimumSize"><b>minimumSize</b></a> () const</li>
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<li class=fn>virtual TQSize <a href="#maximumSize"><b>maximumSize</b></a> () const</li>
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<li class=fn>virtual void <a href="#setGeometry"><b>setGeometry</b></a> ( const TQRect & r ) = 0</li>
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<li class=fn>virtual TQLayoutIterator <a href="#iterator"><b>iterator</b></a> () = 0</li>
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<li class=fn>virtual bool <a href="#isEmpty"><b>isEmpty</b></a> () const</li>
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<li class=fn>bool <a href="#supportsMargin"><b>supportsMargin</b></a> () const</li>
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<li class=fn>void <a href="#setEnabled"><b>setEnabled</b></a> ( bool enable )</li>
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<li class=fn>bool <a href="#isEnabled"><b>isEnabled</b></a> () const</li>
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</ul>
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<h2>Properties</h2>
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<ul>
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<li class=fn>int <a href="#margin-prop"><b>margin</b></a> - the width of the outside border of the layout</li>
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<li class=fn>ResizeMode <a href="#resizeMode-prop"><b>resizeMode</b></a> - the resize mode of the layout</li>
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<li class=fn>int <a href="#spacing-prop"><b>spacing</b></a> - the spacing between widgets inside the layout</li>
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</ul>
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<h2>Protected Members</h2>
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<ul>
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<li class=fn>void <a href="#addChildLayout"><b>addChildLayout</b></a> ( TQLayout * l )</li>
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<li class=fn>void <a href="#deleteAllItems"><b>deleteAllItems</b></a> ()</li>
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<li class=fn>void <a href="#setSupportsMargin"><b>setSupportsMargin</b></a> ( bool b )</li>
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<li class=fn>TQRect <a href="#alignmentRect"><b>alignmentRect</b></a> ( const TQRect & r ) const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQLayout class is the base class of geometry managers.
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<p>
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<p> This is an abstract base class inherited by the concrete classes,
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<a href="qboxlayout.html">TQBoxLayout</a> and <a href="qgridlayout.html">TQGridLayout</a>.
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<p> For users of TQLayout subclasses or of <a href="ntqmainwindow.html">TQMainWindow</a> there is seldom
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any need to use the basic functions provided by TQLayout, such as
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<a href="#setResizeMode">setResizeMode</a>() or <a href="#setMenuBar">setMenuBar</a>(). See the <a href="layout.html">layout
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overview page</a> for more information.
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<p> To make your own layout manager, subclass <a href="qglayoutiterator.html">TQGLayoutIterator</a> and
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implement the functions <a href="#addItem">addItem</a>(), <a href="qlayoutitem.html#sizeHint">sizeHint</a>(), <a href="#setGeometry">setGeometry</a>(), and
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<a href="#iterator">iterator</a>(). You should also implement <a href="#minimumSize">minimumSize</a>() to ensure your
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layout isn't resized to zero size if there is too little space. To
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support children whose heights depend on their widths, implement
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<a href="qlayoutitem.html#hasHeightForWidth">hasHeightForWidth</a>() and <a href="qlayoutitem.html#heightForWidth">heightForWidth</a>(). See the <a href="customlayout.html">custom layout page</a> for an in-depth
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description.
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<p> Geometry management stops when the layout manager is deleted.
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<p>See also <a href="appearance.html">Widget Appearance and Style</a> and <a href="geomanagement.html">Layout Management</a>.
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<hr><h2>Member Type Documentation</h2>
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<h3 class=fn><a name="ResizeMode-enum"></a>TQLayout::ResizeMode</h3>
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<p> The possible values are:
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<ul>
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<li><tt>TQLayout::Auto</tt> - If the main widget is a top-level widget with no
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height-for-width (<a href="qlayoutitem.html#hasHeightForWidth">hasHeightForWidth</a>()), this is
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the same as <tt>Minimium</tt>; otherwise, this is the
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same as <a href="#ResizeMode-enum">FreeResize</a>.
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<li><tt>TQLayout::Fixed</tt> - The main widget's size is set to <a href="qlayoutitem.html#sizeHint">sizeHint</a>(); it
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cannot be resized at all.
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<li><tt>TQLayout::Minimum</tt> - The main widget's minimum size is set to
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<a href="#minimumSize">minimumSize</a>(); it cannot be smaller.
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<li><tt>TQLayout::FreeResize</tt> - The widget is not constrained.
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</ul>
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQLayout"></a>TQLayout::TQLayout ( <a href="ntqwidget.html">TQWidget</a> * parent, int margin = 0, int spacing = -1, const char * name = 0 )
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</h3>
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Constructs a new top-level TQLayout called <em>name</em>, with main
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widget <em>parent</em>. <em>parent</em> may not be 0.
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<p> The <em>margin</em> is the number of pixels between the edge of the
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widget and the managed children. The <em>spacing</em> sets the value of
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<a href="#spacing">spacing</a>(), which gives the spacing between the managed widgets. If
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<em>spacing</em> is -1 (the default), spacing is set to the value of <em>margin</em>.
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<p> There can be only one top-level layout for a widget. It is
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returned by <a href="ntqwidget.html#layout">TQWidget::layout</a>()
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<h3 class=fn><a name="TQLayout-2"></a>TQLayout::TQLayout ( <a href="ntqlayout.html">TQLayout</a> * parentLayout, int spacing = -1, const char * name = 0 )
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</h3>
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Constructs a new child TQLayout called <em>name</em>, and places it
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inside <em>parentLayout</em> by using the default placement defined by
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<a href="#addItem">addItem</a>().
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<p> If <em>spacing</em> is -1, this TQLayout inherits <em>parentLayout</em>'s
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<a href="#spacing">spacing</a>(), otherwise the value of <em>spacing</em> is used.
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<h3 class=fn><a name="TQLayout-3"></a>TQLayout::TQLayout ( int spacing = -1, const char * name = 0 )
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</h3>
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Constructs a new child TQLayout called <em>name</em>. If <em>spacing</em> is
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-1, this TQLayout inherits its parent's <a href="#spacing">spacing</a>(); otherwise the
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value of <em>spacing</em> is used.
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<p> This layout has to be inserted into another layout before geometry
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management will work.
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<h3 class=fn>bool <a name="activate"></a>TQLayout::activate ()
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</h3>
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Redoes the layout for <a href="#mainWidget">mainWidget</a>(). You should generally not need
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to call this because it is automatically called at the most
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appropriate times.
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<p> However, if you set up a TQLayout for a visible widget without
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resizing that widget, you will need to call this function in order
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to lay it out.
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<p> <p>See also <a href="ntqwidget.html#updateGeometry">TQWidget::updateGeometry</a>().
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<p>Examples: <a href="layout-example.html#x538">layout/layout.cpp</a>, <a href="popup-example.html#x1609">popup/popup.cpp</a>, <a href="scrollview-example.html#x630">scrollview/scrollview.cpp</a>, and <a href="sql.html#x2222">sql/overview/form1/main.cpp</a>.
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<h3 class=fn>void <a name="add"></a>TQLayout::add ( <a href="ntqwidget.html">TQWidget</a> * w )
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</h3>
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<p> Adds widget <em>w</em> to this layout in a manner specific to the
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layout. This function uses <a href="#addItem">addItem</a>().
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<p>Examples: <a href="customlayout-example.html#x1489">customlayout/border.cpp</a> and <a href="customlayout-example.html#x1536">customlayout/main.cpp</a>.
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<h3 class=fn>void <a name="addChildLayout"></a>TQLayout::addChildLayout ( <a href="ntqlayout.html">TQLayout</a> * l )<tt> [protected]</tt>
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</h3>
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This function is called from addLayout() functions in subclasses
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to add layout <em>l</em> as a sub-layout.
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<h3 class=fn>void <a name="addItem"></a>TQLayout::addItem ( <a href="qlayoutitem.html">TQLayoutItem</a> * item )<tt> [pure virtual]</tt>
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</h3>
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<p> Implemented in subclasses to add an <em>item</em>. How it is added is
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specific to each subclass.
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<p> The ownership of <em>item</em> is transferred to the layout, and it's
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the layout's responsibility to delete it.
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<p>Examples: <a href="customlayout-example.html#x1490">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1511">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1467">customlayout/flow.cpp</a>.
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<p>Reimplemented in <a href="qgridlayout.html#addItem-2">TQGridLayout</a> and <a href="qboxlayout.html#addItem">TQBoxLayout</a>.
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<h3 class=fn><a href="ntqrect.html">TQRect</a> <a name="alignmentRect"></a>TQLayout::alignmentRect ( const <a href="ntqrect.html">TQRect</a> & r ) const<tt> [protected]</tt>
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</h3>
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Returns the rectangle that should be covered when the geometry of
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this layout is set to <em>r</em>, provided that this layout supports
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<a href="qlayoutitem.html#setAlignment">setAlignment</a>().
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<p> The result is derived from <a href="qlayoutitem.html#sizeHint">sizeHint</a>() and <a href="#expanding">expanding</a>(). It is never
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larger than <em>r</em>.
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<h3 class=fn>bool <a name="autoAdd"></a>TQLayout::autoAdd () const
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</h3>
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<p> Returns TRUE if this layout automatically grabs all new
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<a href="#mainWidget">mainWidget</a>()'s new children and adds them as defined by <a href="#addItem">addItem</a>();
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otherwise returns FALSE. This has effect only for top-level
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layouts, i.e. layouts that are direct children of their
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mainWidget().
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<p> <a href="#autoAdd">autoAdd</a>() is disabled by default.
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<p> Note that a top-level layout is not necessarily associated with
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the top-level widget.
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<p> <p>See also <a href="#setAutoAdd">setAutoAdd</a>().
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<h3 class=fn>void <a name="deleteAllItems"></a>TQLayout::deleteAllItems ()<tt> [protected]</tt>
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</h3>
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Removes and deletes all items in this layout.
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<h3 class=fn><a href="ntqsizepolicy.html#ExpandData-enum">TQSizePolicy::ExpandData</a> <a name="expanding"></a>TQLayout::expanding () const<tt> [virtual]</tt>
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</h3>
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Returns whether this layout can make use of more space than
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<a href="qlayoutitem.html#sizeHint">sizeHint</a>(). A value of <a href="ntqt.html#Orientation-enum">Vertical</a> or <a href="ntqt.html#Orientation-enum">Horizontal</a> means that it wants
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to grow in only one dimension, whereas <tt>BothDirections</tt> means that
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it wants to grow in both dimensions.
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<p> The default implementation returns <tt>BothDirections</tt>.
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<p>Examples: <a href="customlayout-example.html#x1491">customlayout/border.cpp</a> and <a href="customlayout-example.html#x1468">customlayout/flow.cpp</a>.
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<p>Reimplemented from <a href="qlayoutitem.html#expanding">TQLayoutItem</a>.
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<p>Reimplemented in <a href="qgridlayout.html#expanding">TQGridLayout</a> and <a href="qboxlayout.html#expanding">TQBoxLayout</a>.
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<h3 class=fn>void <a name="invalidate"></a>TQLayout::invalidate ()<tt> [virtual]</tt>
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</h3>
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Invalidates cached information. Reimplementations must call this.
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<p>Reimplemented from <a href="qlayoutitem.html#invalidate">TQLayoutItem</a>.
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<p>Reimplemented in <a href="qgridlayout.html#invalidate">TQGridLayout</a> and <a href="qboxlayout.html#invalidate">TQBoxLayout</a>.
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<h3 class=fn>bool <a name="isEmpty"></a>TQLayout::isEmpty () const<tt> [virtual]</tt>
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</h3>
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Returns TRUE if this layout is empty. The default implementation
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returns FALSE.
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<p>Reimplemented from <a href="qlayoutitem.html#isEmpty">TQLayoutItem</a>.
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<h3 class=fn>bool <a name="isEnabled"></a>TQLayout::isEnabled () const
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</h3>
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Returns TRUE if the layout is enabled; otherwise returns FALSE.
|
||
|
|
<p> <p>See also <a href="#setEnabled">setEnabled</a>().
|
||
|
|
|
||
|
|
<h3 class=fn>bool <a name="isTopLevel"></a>TQLayout::isTopLevel () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns TRUE if this layout is a top-level layout, i.e. not a
|
||
|
|
child of another layout; otherwise returns FALSE.
|
||
|
|
|
||
|
|
<h3 class=fn><a href="qlayoutiterator.html">TQLayoutIterator</a> <a name="iterator"></a>TQLayout::iterator ()<tt> [pure virtual]</tt>
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Implemented in subclasses to return an iterator that iterates over
|
||
|
|
this layout's children.
|
||
|
|
<p> A typical implementation will be:
|
||
|
|
<pre>
|
||
|
|
TQLayoutIterator MyLayout::iterator()
|
||
|
|
{
|
||
|
|
<a href="qglayoutiterator.html">TQGLayoutIterator</a> *i = new MyLayoutIterator( internal_data );
|
||
|
|
return TQLayoutIterator( i );
|
||
|
|
}
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
where MyLayoutIterator is a subclass of <a href="qglayoutiterator.html">TQGLayoutIterator</a>.
|
||
|
|
|
||
|
|
<p>Examples: <a href="customlayout-example.html#x1492">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1512">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1469">customlayout/flow.cpp</a>.
|
||
|
|
<p>Reimplemented from <a href="qlayoutitem.html#iterator">TQLayoutItem</a>.
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqwidget.html">TQWidget</a> * <a name="mainWidget"></a>TQLayout::mainWidget ()
|
||
|
13 years ago
|
</h3>
|
||
|
|
Returns the main widget (parent widget) of this layout, or 0 if
|
||
|
|
this layout is a sub-layout that is not yet inserted.
|
||
|
|
|
||
|
|
<h3 class=fn>int <a name="margin"></a>TQLayout::margin () const
|
||
|
|
</h3><p>Returns the width of the outside border of the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#margin-prop">"margin"</a> property for details.
|
||
|
|
<h3 class=fn><a href="ntqsize.html">TQSize</a> <a name="maximumSize"></a>TQLayout::maximumSize () const<tt> [virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Returns the maximum size of this layout. This is the largest size
|
||
|
|
that the layout can have while still respecting the
|
||
|
|
specifications. Does not include what's needed by <a href="#margin">margin</a>() or
|
||
|
|
<a href="#menuBar">menuBar</a>().
|
||
|
|
<p> The default implementation allows unlimited resizing.
|
||
|
|
|
||
|
|
<p>Reimplemented from <a href="qlayoutitem.html#maximumSize">TQLayoutItem</a>.
|
||
|
|
<p>Reimplemented in <a href="qgridlayout.html#maximumSize">TQGridLayout</a> and <a href="qboxlayout.html#maximumSize">TQBoxLayout</a>.
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqmenubar.html">TQMenuBar</a> * <a name="menuBar"></a>TQLayout::menuBar () const
|
||
|
13 years ago
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the menu bar set for this layout, or 0 if no menu bar is
|
||
|
|
set.
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqsize.html">TQSize</a> <a name="minimumSize"></a>TQLayout::minimumSize () const<tt> [virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Returns the minimum size of this layout. This is the smallest size
|
||
|
|
that the layout can have while still respecting the
|
||
|
|
specifications. Does not include what's needed by <a href="#margin">margin</a>() or
|
||
|
|
<a href="#menuBar">menuBar</a>().
|
||
|
|
<p> The default implementation allows unlimited resizing.
|
||
|
|
|
||
|
|
<p>Examples: <a href="customlayout-example.html#x1493">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1513">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1470">customlayout/flow.cpp</a>.
|
||
|
|
<p>Reimplemented from <a href="qlayoutitem.html#minimumSize">TQLayoutItem</a>.
|
||
|
|
<p>Reimplemented in <a href="qgridlayout.html#minimumSize">TQGridLayout</a> and <a href="qboxlayout.html#minimumSize">TQBoxLayout</a>.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="remove"></a>TQLayout::remove ( <a href="ntqwidget.html">TQWidget</a> * widget )
|
||
|
13 years ago
|
</h3>
|
||
|
|
Removes the widget <em>widget</em> from the layout. After this call, it
|
||
|
|
is the caller's responsibility to give the widget a reasonable
|
||
|
|
geometry or to put the widget back into a layout.
|
||
|
13 years ago
|
<p> <p>See also <a href="#removeItem">removeItem</a>(), <a href="ntqwidget.html#geometry-prop">TQWidget::geometry</a>, and <a href="#add">add</a>().
|
||
|
13 years ago
|
|
||
|
|
<h3 class=fn>void <a name="removeItem"></a>TQLayout::removeItem ( <a href="qlayoutitem.html">TQLayoutItem</a> * item )
|
||
|
|
</h3>
|
||
|
|
Removes the layout item <em>item</em> from the layout. It is the
|
||
|
|
caller's responsibility to delete the item.
|
||
|
|
<p> Notice that <em>item</em> can be a layout (since TQLayout inherits
|
||
|
|
<a href="qlayoutitem.html">TQLayoutItem</a>).
|
||
|
|
<p> <p>See also <a href="#remove">remove</a>() and <a href="#addItem">addItem</a>().
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqlayout.html#ResizeMode-enum">ResizeMode</a> <a name="resizeMode"></a>TQLayout::resizeMode () const
|
||
|
13 years ago
|
</h3><p>Returns the resize mode of the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#resizeMode-prop">"resizeMode"</a> property for details.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setAutoAdd"></a>TQLayout::setAutoAdd ( bool b )<tt> [virtual]</tt>
|
||
|
|
</h3>
|
||
|
|
If <em>b</em> is TRUE, auto-add is enabled; otherwise auto-add is
|
||
|
|
disabled.
|
||
|
|
<p> <b>Warning:</b> If auto-add is enabled, you cannot set stretch factors
|
||
|
|
on the child widgets until the widgets are actually inserted in
|
||
|
|
the layout (after control returned to the event loop). We
|
||
|
|
therefore recommend that you avoid the auto-add feature in new
|
||
|
|
programs.
|
||
|
|
<p> <p>See also <a href="#autoAdd">autoAdd</a>().
|
||
|
|
|
||
|
|
<p>Examples: <a href="qaxserver-example-hierarchy.html#x2649">hierarchy/objects.cpp</a> and <a href="i18n-example.html#x1938">i18n/main.cpp</a>.
|
||
|
|
<h3 class=fn>void <a name="setEnabled"></a>TQLayout::setEnabled ( bool enable )
|
||
|
|
</h3>
|
||
|
|
Enables this layout if <em>enable</em> is TRUE, otherwise disables it.
|
||
|
|
<p> An enabled layout adjusts dynamically to changes; a disabled
|
||
|
|
layout acts as if it did not exist.
|
||
|
|
<p> By default all layouts are enabled.
|
||
|
|
<p> <p>See also <a href="#isEnabled">isEnabled</a>().
|
||
|
|
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setGeometry"></a>TQLayout::setGeometry ( const <a href="ntqrect.html">TQRect</a> & r )<tt> [pure virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
This function is reimplemented in subclasses to perform layout.
|
||
|
|
<p> The default implementation maintains the <a href="qlayoutitem.html#geometry">geometry</a>() information
|
||
|
|
given by rect <em>r</em>. Reimplementors must call this function.
|
||
|
|
|
||
|
|
<p>Examples: <a href="customlayout-example.html#x1494">customlayout/border.cpp</a>, <a href="customlayout-example.html#x1514">customlayout/card.cpp</a>, and <a href="customlayout-example.html#x1471">customlayout/flow.cpp</a>.
|
||
|
|
<p>Reimplemented from <a href="qlayoutitem.html#setGeometry">TQLayoutItem</a>.
|
||
|
|
<p>Reimplemented in <a href="qgridlayout.html#setGeometry">TQGridLayout</a> and <a href="qboxlayout.html#setGeometry">TQBoxLayout</a>.
|
||
|
|
<h3 class=fn>void <a name="setMargin"></a>TQLayout::setMargin ( int )<tt> [virtual]</tt>
|
||
|
|
</h3><p>Sets the width of the outside border of the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#margin-prop">"margin"</a> property for details.
|
||
|
|
<h3 class=fn>void <a name="setMenuBar"></a>TQLayout::setMenuBar ( <a href="ntqmenubar.html">TQMenuBar</a> * w )<tt> [virtual]</tt>
|
||
|
13 years ago
|
</h3>
|
||
|
|
Makes the geometry manager take account of the menu bar <em>w</em>. All
|
||
|
|
child widgets are placed below the bottom edge of the menu bar.
|
||
|
|
<p> A menu bar does its own geometry management: never do addWidget()
|
||
|
13 years ago
|
on a <a href="ntqmenubar.html">TQMenuBar</a>.
|
||
|
13 years ago
|
|
||
|
|
<p>Examples: <a href="layout-example.html#x539">layout/layout.cpp</a> and <a href="scrollview-example.html#x631">scrollview/scrollview.cpp</a>.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setResizeMode"></a>TQLayout::setResizeMode ( <a href="ntqlayout.html#ResizeMode-enum">ResizeMode</a> )
|
||
|
13 years ago
|
</h3><p>Sets the resize mode of the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#resizeMode-prop">"resizeMode"</a> property for details.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setSpacing"></a>TQLayout::setSpacing ( int )<tt> [virtual]</tt>
|
||
|
|
</h3><p>Sets the spacing between widgets inside the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#spacing-prop">"spacing"</a> property for details.
|
||
|
13 years ago
|
<h3 class=fn>void <a name="setSupportsMargin"></a>TQLayout::setSupportsMargin ( bool b )<tt> [protected]</tt>
|
||
|
|
</h3>
|
||
|
|
Sets the value returned by <a href="#supportsMargin">supportsMargin</a>(). If <em>b</em> is TRUE,
|
||
|
|
<a href="#margin">margin</a>() handling is implemented by the subclass. If <em>b</em> is
|
||
|
|
FALSE (the default), TQLayout will add margin() around top-level
|
||
|
|
layouts.
|
||
|
|
<p> If <em>b</em> is TRUE, margin handling needs to be implemented in
|
||
|
|
<a href="#setGeometry">setGeometry</a>(), <a href="#maximumSize">maximumSize</a>(), <a href="#minimumSize">minimumSize</a>(), <a href="qlayoutitem.html#sizeHint">sizeHint</a>() and
|
||
|
|
<a href="qlayoutitem.html#heightForWidth">heightForWidth</a>().
|
||
|
|
<p> <p>See also <a href="#supportsMargin">supportsMargin</a>().
|
||
|
|
|
||
|
|
<h3 class=fn>int <a name="spacing"></a>TQLayout::spacing () const
|
||
|
|
</h3><p>Returns the spacing between widgets inside the layout.
|
||
|
13 years ago
|
See the <a href="ntqlayout.html#spacing-prop">"spacing"</a> property for details.
|
||
|
13 years ago
|
<h3 class=fn>bool <a name="supportsMargin"></a>TQLayout::supportsMargin () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns TRUE if this layout supports <a href="#margin-prop">TQLayout::margin</a> on
|
||
|
|
non-top-level layouts; otherwise returns FALSE.
|
||
|
|
<p> <p>See also <a href="#margin-prop">margin</a>.
|
||
|
|
|
||
|
|
<hr><h2>Property Documentation</h2>
|
||
|
|
<h3 class=fn>int <a name="margin-prop"></a>margin</h3>
|
||
|
|
<p>This property holds the width of the outside border of the layout.
|
||
|
|
<p>For some layout classes this property has an effect only on
|
||
|
|
top-level layouts; <a href="qboxlayout.html">TQBoxLayout</a> and <a href="qgridlayout.html">TQGridLayout</a> support margins for
|
||
|
|
child layouts. The default value is 0.
|
||
|
|
<p> <p>See also <a href="#spacing-prop">spacing</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setMargin">setMargin</a>() and get this property's value with <a href="#margin">margin</a>().
|
||
|
13 years ago
|
<h3 class=fn><a href="ntqlayout.html#ResizeMode-enum">ResizeMode</a> <a name="resizeMode-prop"></a>resizeMode</h3>
|
||
|
13 years ago
|
<p>This property holds the resize mode of the layout.
|
||
|
|
<p>The default mode is <a href="#ResizeMode-enum">Auto</a>.
|
||
|
|
<p> <p>See also <a href="#ResizeMode-enum">TQLayout::ResizeMode</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setResizeMode">setResizeMode</a>() and get this property's value with <a href="#resizeMode">resizeMode</a>().
|
||
|
|
<h3 class=fn>int <a name="spacing-prop"></a>spacing</h3>
|
||
|
|
<p>This property holds the spacing between widgets inside the layout.
|
||
|
|
<p>The default value is -1, which signifies that the layout's spacing
|
||
|
|
should not override the widget's spacing.
|
||
|
|
<p> <p>See also <a href="#margin-prop">margin</a>.
|
||
|
|
|
||
|
|
<p>Set this property's value with <a href="#setSpacing">setSpacing</a>() and get this property's value with <a href="#spacing">spacing</a>().
|
||
|
|
<!-- eof -->
|
||
|
|
<hr><p>
|
||
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
||
|
|
Copyright © 1995-2007
|
||
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
||
|
|
<table width=100% cellspacing=0 border=0><tr>
|
||
|
|
<td>Copyright © 2007
|
||
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
||
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
||
|
|
</table></div></address></body>
|
||
|
|
</html>
|