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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 >
< p > The TQLayout class is the base class of geometry managers.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qlayout-h.html" > ntqlayout.h< / a > > < / tt >
< p > Inherits < a href = "tqobject.html" > TQObject< / a > and < a href = "qlayoutitem.html" > TQLayoutItem< / a > .
< p > Inherited by < a href = "qgridlayout.html" > TQGridLayout< / a > and < a href = "qboxlayout.html" > TQBoxLayout< / a > .
< p > < a href = "qlayout-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 > { FreeResize, Minimum, Fixed, Auto }< / li >
< li class = fn > < a href = "#TQLayout" > < b > TQLayout< / b > < / a > ( TQWidget * parent, int margin = 0, int spacing = -1, const char * name = 0 )< / li >
< li class = fn > < a href = "#TQLayout-2" > < b > TQLayout< / b > < / a > ( TQLayout * parentLayout, int spacing = -1, const char * name = 0 )< / li >
< li class = fn > < a href = "#TQLayout-3" > < b > TQLayout< / b > < / a > ( int spacing = -1, const char * name = 0 )< / li >
< li class = fn > int < a href = "#margin" > < b > margin< / b > < / a > () const< / li >
< li class = fn > int < a href = "#spacing" > < b > spacing< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#setMargin" > < b > setMargin< / b > < / a > ( int )< / li >
< li class = fn > virtual void < a href = "#setSpacing" > < b > setSpacing< / b > < / a > ( int )< / li >
< li class = fn > void < a href = "#setResizeMode" > < b > setResizeMode< / b > < / a > ( ResizeMode )< / li >
< li class = fn > ResizeMode < a href = "#resizeMode" > < b > resizeMode< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#setMenuBar" > < b > setMenuBar< / b > < / a > ( TQMenuBar * w )< / li >
< li class = fn > TQMenuBar * < a href = "#menuBar" > < b > menuBar< / b > < / a > () const< / li >
< li class = fn > TQWidget * < a href = "#mainWidget" > < b > mainWidget< / b > < / a > ()< / li >
< li class = fn > bool < a href = "#isTopLevel" > < b > isTopLevel< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#setAutoAdd" > < b > setAutoAdd< / b > < / a > ( bool b )< / li >
< li class = fn > bool < a href = "#autoAdd" > < b > autoAdd< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#invalidate" > < b > invalidate< / b > < / a > ()< / li >
< li class = fn > bool < a href = "#activate" > < b > activate< / b > < / a > ()< / li >
< li class = fn > void < a href = "#add" > < b > add< / b > < / a > ( TQWidget * w )< / li >
< li class = fn > virtual void < a href = "#addItem" > < b > addItem< / b > < / a > ( TQLayoutItem * item ) = 0< / li >
< li class = fn > void < a href = "#remove" > < b > remove< / b > < / a > ( TQWidget * widget )< / li >
< li class = fn > void < a href = "#removeItem" > < b > removeItem< / b > < / a > ( TQLayoutItem * item )< / li >
< li class = fn > virtual TQSizePolicy::ExpandData < a href = "#expanding" > < b > expanding< / b > < / a > () const< / li >
< li class = fn > virtual TQSize < a href = "#minimumSize" > < b > minimumSize< / b > < / a > () const< / li >
< li class = fn > virtual TQSize < a href = "#maximumSize" > < b > maximumSize< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#setGeometry" > < b > setGeometry< / b > < / a > ( const TQRect & r ) = 0< / li >
< li class = fn > virtual TQLayoutIterator < a href = "#iterator" > < b > iterator< / b > < / a > () = 0< / li >
< li class = fn > virtual bool < a href = "#isEmpty" > < b > isEmpty< / b > < / a > () const< / li >
< li class = fn > bool < a href = "#supportsMargin" > < b > supportsMargin< / b > < / a > () const< / li >
< li class = fn > void < a href = "#setEnabled" > < b > setEnabled< / b > < / a > ( bool enable )< / li >
< li class = fn > bool < a href = "#isEnabled" > < b > isEnabled< / b > < / a > () const< / li >
< / ul >
< h2 > Properties< / h2 >
< ul >
< li class = fn > int < a href = "#margin-prop" > < b > margin< / b > < / a > - the width of the outside border of the layout< / li >
< li class = fn > ResizeMode < a href = "#resizeMode-prop" > < b > resizeMode< / b > < / a > - the resize mode of the layout< / li >
< li class = fn > int < a href = "#spacing-prop" > < b > spacing< / b > < / a > - the spacing between widgets inside the layout< / li >
< / ul >
< h2 > Protected Members< / h2 >
< ul >
< li class = fn > void < a href = "#addChildLayout" > < b > addChildLayout< / b > < / a > ( TQLayout * l )< / li >
< li class = fn > void < a href = "#deleteAllItems" > < b > deleteAllItems< / b > < / a > ()< / li >
< li class = fn > void < a href = "#setSupportsMargin" > < b > setSupportsMargin< / b > < / a > ( bool b )< / li >
< li class = fn > TQRect < a href = "#alignmentRect" > < b > alignmentRect< / b > < / a > ( const TQRect & r ) const< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQLayout class is the base class of geometry managers.
< p >
< p > This is an abstract base class inherited by the concrete classes,
< a href = "qboxlayout.html" > TQBoxLayout< / a > and < a href = "qgridlayout.html" > TQGridLayout< / a > .
< p > For users of TQLayout subclasses or of < a href = "ntqmainwindow.html" > TQMainWindow< / a > there is seldom
any need to use the basic functions provided by TQLayout, such as
< a href = "#setResizeMode" > setResizeMode< / a > () or < a href = "#setMenuBar" > setMenuBar< / a > (). See the < a href = "layout.html" > layout
overview page< / a > for more information.
< p > To make your own layout manager, subclass < a href = "qglayoutiterator.html" > TQGLayoutIterator< / a > and
implement the functions < a href = "#addItem" > addItem< / a > (), < a href = "qlayoutitem.html#sizeHint" > sizeHint< / a > (), < a href = "#setGeometry" > setGeometry< / a > (), and
< a href = "#iterator" > iterator< / a > (). You should also implement < a href = "#minimumSize" > minimumSize< / a > () to ensure your
layout isn't resized to zero size if there is too little space. To
support children whose heights depend on their widths, implement
< 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
description.
< p > Geometry management stops when the layout manager is deleted.
< p > See also < a href = "appearance.html" > Widget Appearance and Style< / a > and < a href = "geomanagement.html" > Layout Management< / a > .
< hr > < h2 > Member Type Documentation< / h2 >
< h3 class = fn > < a name = "ResizeMode-enum" > < / a > TQLayout::ResizeMode< / h3 >
< p > The possible values are:
< ul >
< li > < tt > TQLayout::Auto< / tt > - If the main widget is a top-level widget with no
height-for-width (< a href = "qlayoutitem.html#hasHeightForWidth" > hasHeightForWidth< / a > ()), this is
the same as < tt > Minimium< / tt > ; otherwise, this is the
same as < a href = "#ResizeMode-enum" > FreeResize< / a > .
< li > < tt > TQLayout::Fixed< / tt > - The main widget's size is set to < a href = "qlayoutitem.html#sizeHint" > sizeHint< / a > (); it
cannot be resized at all.
< li > < tt > TQLayout::Minimum< / tt > - The main widget's minimum size is set to
< a href = "#minimumSize" > minimumSize< / a > (); it cannot be smaller.
< li > < tt > TQLayout::FreeResize< / tt > - The widget is not constrained.
< / ul >
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQLayout" > < / a > TQLayout::TQLayout ( < a href = "tqwidget.html" > TQWidget< / a > * parent, int margin = 0, int spacing = -1, const char * name = 0 )
< / h3 >
Constructs a new top-level TQLayout called < em > name< / em > , with main
widget < em > parent< / em > . < em > parent< / em > may not be 0.
< p > The < em > margin< / em > is the number of pixels between the edge of the
widget and the managed children. The < em > spacing< / em > sets the value of
< a href = "#spacing" > spacing< / a > (), which gives the spacing between the managed widgets. If
< em > spacing< / em > is -1 (the default), spacing is set to the value of < em > margin< / em > .
< p > There can be only one top-level layout for a widget. It is
returned by < a href = "tqwidget.html#layout" > TQWidget::layout< / a > ()
< h3 class = fn > < a name = "TQLayout-2" > < / a > TQLayout::TQLayout ( < a href = "ntqlayout.html" > TQLayout< / a > * parentLayout, int spacing = -1, const char * name = 0 )
< / h3 >
Constructs a new child TQLayout called < em > name< / em > , and places it
inside < em > parentLayout< / em > by using the default placement defined by
< a href = "#addItem" > addItem< / a > ().
< p > If < em > spacing< / em > is -1, this TQLayout inherits < em > parentLayout< / em > 's
< a href = "#spacing" > spacing< / a > (), otherwise the value of < em > spacing< / em > is used.
< h3 class = fn > < a name = "TQLayout-3" > < / a > TQLayout::TQLayout ( int spacing = -1, const char * name = 0 )
< / h3 >
Constructs a new child TQLayout called < em > name< / em > . If < em > spacing< / em > is
-1, this TQLayout inherits its parent's < a href = "#spacing" > spacing< / a > (); otherwise the
value of < em > spacing< / em > is used.
< p > This layout has to be inserted into another layout before geometry
management will work.
< h3 class = fn > bool < a name = "activate" > < / a > TQLayout::activate ()
< / h3 >
Redoes the layout for < a href = "#mainWidget" > mainWidget< / a > (). You should generally not need
to call this because it is automatically called at the most
appropriate times.
< p > However, if you set up a TQLayout for a visible widget without
resizing that widget, you will need to call this function in order
to lay it out.
< p > < p > See also < a href = "tqwidget.html#updateGeometry" > TQWidget::updateGeometry< / a > ().
< 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 > .
< h3 class = fn > void < a name = "add" > < / a > TQLayout::add ( < a href = "tqwidget.html" > TQWidget< / a > * w )
< / h3 >
< p > Adds widget < em > w< / em > to this layout in a manner specific to the
layout. This function uses < a href = "#addItem" > addItem< / a > ().
< p > Examples: < a href = "customlayout-example.html#x1489" > customlayout/border.cpp< / a > and < a href = "customlayout-example.html#x1536" > customlayout/main.cpp< / a > .
< h3 class = fn > void < a name = "addChildLayout" > < / a > TQLayout::addChildLayout ( < a href = "ntqlayout.html" > TQLayout< / a > * l )< tt > [protected]< / tt >
< / h3 >
This function is called from addLayout() functions in subclasses
to add layout < em > l< / em > as a sub-layout.
< h3 class = fn > void < a name = "addItem" > < / a > TQLayout::addItem ( < a href = "qlayoutitem.html" > TQLayoutItem< / a > * item )< tt > [pure virtual]< / tt >
< / h3 >
< p > Implemented in subclasses to add an < em > item< / em > . How it is added is
specific to each subclass.
< p > The ownership of < em > item< / em > is transferred to the layout, and it's
the layout's responsibility to delete it.
< 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 > .
< p > Reimplemented in < a href = "qgridlayout.html#addItem-2" > TQGridLayout< / a > and < a href = "qboxlayout.html#addItem" > TQBoxLayout< / a > .
< 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 >
< / h3 >
Returns the rectangle that should be covered when the geometry of
this layout is set to < em > r< / em > , provided that this layout supports
< a href = "qlayoutitem.html#setAlignment" > setAlignment< / a > ().
< p > The result is derived from < a href = "qlayoutitem.html#sizeHint" > sizeHint< / a > () and < a href = "#expanding" > expanding< / a > (). It is never
larger than < em > r< / em > .
< h3 class = fn > bool < a name = "autoAdd" > < / a > TQLayout::autoAdd () const
< / h3 >
< p > Returns TRUE if this layout automatically grabs all new
< a href = "#mainWidget" > mainWidget< / a > ()'s new children and adds them as defined by < a href = "#addItem" > addItem< / a > ();
otherwise returns FALSE. This has effect only for top-level
layouts, i.e. layouts that are direct children of their
mainWidget().
< p > < a href = "#autoAdd" > autoAdd< / a > () is disabled by default.
< p > Note that a top-level layout is not necessarily associated with
the top-level widget.
< p > < p > See also < a href = "#setAutoAdd" > setAutoAdd< / a > ().
< h3 class = fn > void < a name = "deleteAllItems" > < / a > TQLayout::deleteAllItems ()< tt > [protected]< / tt >
< / h3 >
Removes and deletes all items in this layout.
< h3 class = fn > < a href = "ntqsizepolicy.html#ExpandData-enum" > TQSizePolicy::ExpandData< / a > < a name = "expanding" > < / a > TQLayout::expanding () const< tt > [virtual]< / tt >
< / h3 >
Returns whether this layout can make use of more space than
< 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
to grow in only one dimension, whereas < tt > BothDirections< / tt > means that
it wants to grow in both dimensions.
< p > The default implementation returns < tt > BothDirections< / tt > .
< p > Examples: < a href = "customlayout-example.html#x1491" > customlayout/border.cpp< / a > and < a href = "customlayout-example.html#x1468" > customlayout/flow.cpp< / a > .
< p > Reimplemented from < a href = "qlayoutitem.html#expanding" > TQLayoutItem< / a > .
< p > Reimplemented in < a href = "qgridlayout.html#expanding" > TQGridLayout< / a > and < a href = "qboxlayout.html#expanding" > TQBoxLayout< / a > .
< h3 class = fn > void < a name = "invalidate" > < / a > TQLayout::invalidate ()< tt > [virtual]< / tt >
< / h3 >
Invalidates cached information. Reimplementations must call this.
< p > Reimplemented from < a href = "qlayoutitem.html#invalidate" > TQLayoutItem< / a > .
< p > Reimplemented in < a href = "qgridlayout.html#invalidate" > TQGridLayout< / a > and < a href = "qboxlayout.html#invalidate" > TQBoxLayout< / a > .
< h3 class = fn > bool < a name = "isEmpty" > < / a > TQLayout::isEmpty () const< tt > [virtual]< / tt >
< / h3 >
Returns TRUE if this layout is empty. The default implementation
returns FALSE.
< p > Reimplemented from < a href = "qlayoutitem.html#isEmpty" > TQLayoutItem< / a > .
< h3 class = fn > bool < a name = "isEnabled" > < / a > TQLayout::isEnabled () const
< / h3 >
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 > .
< h3 class = fn > < a href = "tqwidget.html" > TQWidget< / a > * < a name = "mainWidget" > < / a > TQLayout::mainWidget ()
< / 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.
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 >
< / 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 > .
< h3 class = fn > < a href = "ntqmenubar.html" > TQMenuBar< / a > * < a name = "menuBar" > < / a > TQLayout::menuBar () const
< / h3 >
< p > Returns the menu bar set for this layout, or 0 if no menu bar is
set.
< h3 class = fn > < a href = "ntqsize.html" > TQSize< / a > < a name = "minimumSize" > < / a > TQLayout::minimumSize () const< tt > [virtual]< / tt >
< / 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 > .
< h3 class = fn > void < a name = "remove" > < / a > TQLayout::remove ( < a href = "tqwidget.html" > TQWidget< / a > * widget )
< / 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.
< p > < p > See also < a href = "#removeItem" > removeItem< / a > (), < a href = "tqwidget.html#geometry-prop" > TQWidget::geometry< / a > , and < a href = "#add" > add< / a > ().
< 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 > ().
< h3 class = fn > < a href = "ntqlayout.html#ResizeMode-enum" > ResizeMode< / a > < a name = "resizeMode" > < / a > TQLayout::resizeMode () const
< / h3 > < p > Returns the resize mode of the layout.
See the < a href = "ntqlayout.html#resizeMode-prop" > "resizeMode"< / a > property for details.
< 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 > ().
< h3 class = fn > void < a name = "setGeometry" > < / a > TQLayout::setGeometry ( const < a href = "ntqrect.html" > TQRect< / a > & r )< tt > [pure virtual]< / tt >
< / 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.
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 >
< / 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()
on a < a href = "ntqmenubar.html" > TQMenuBar< / a > .
< p > Examples: < a href = "layout-example.html#x539" > layout/layout.cpp< / a > and < a href = "scrollview-example.html#x631" > scrollview/scrollview.cpp< / a > .
< h3 class = fn > void < a name = "setResizeMode" > < / a > TQLayout::setResizeMode ( < a href = "ntqlayout.html#ResizeMode-enum" > ResizeMode< / a > )
< / h3 > < p > Sets the resize mode of the layout.
See the < a href = "ntqlayout.html#resizeMode-prop" > "resizeMode"< / a > property for details.
< h3 class = fn > void < a name = "setSpacing" > < / a > TQLayout::setSpacing ( int )< tt > [virtual]< / tt >
< / h3 > < p > Sets the spacing between widgets inside the layout.
See the < a href = "ntqlayout.html#spacing-prop" > "spacing"< / a > property for details.
< 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.
See the < a href = "ntqlayout.html#spacing-prop" > "spacing"< / a > property for details.
< 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 > ().
< h3 class = fn > < a href = "ntqlayout.html#ResizeMode-enum" > ResizeMode< / a > < a name = "resizeMode-prop" > < / a > resizeMode< / h3 >
< 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 -->
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