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	1	\section{\class{wxLayoutConstraints}}\label{wxlayoutconstraints}
	2
	3	Objects of this class can be associated with a window to define its
	4	layout constraints, with respect to siblings or its parent.
	5
	6	The class consists of the following eight constraints of class wxIndividualLayoutConstraint,
	7	some or all of which should be accessed directly to set the appropriate
	8	constraints.
	9
	10	\begin{itemize}\itemsep=0pt
	11	\item {\bf left:} represents the left hand edge of the window
	12	\item {\bf right:} represents the right hand edge of the window
	13	\item {\bf top:} represents the top edge of the window
	14	\item {\bf bottom:} represents the bottom edge of the window
	15	\item {\bf width:} represents the width of the window
	16	\item {\bf height:} represents the height of the window
	17	\item {\bf centreX:} represents the horizontal centre point of the window
	18	\item {\bf centreY:} represents the vertical centre point of the window
	19	\end{itemize}
	20
	21	Most constraints are initially set to have the relationship wxUnconstrained,
	22	which means that their values should be calculated by looking at known constraints.
	23	The exceptions are {\it width} and {\it height}, which are set to wxAsIs to
	24	ensure that if the user does not specify a constraint, the existing
	25	width and height will be used, to be compatible with panel items which often
	26	have take a default size. If the constraint is wxAsIs, the dimension will
	27	not be changed.
	28
	29	\perlnote{In wxPerl the constraints are accessed as
	30	\begin{verbatim}
	31	constraint = Wx::LayoutConstraints->new();
	32	constraint->centreX->AsIs();
	33	constraint->centreY->Unconstrained();
	34	\end{verbatim}
	35	}
	36
	37	\wxheading{Derived from}
	38
	39	\helpref{wxObject}{wxobject}
	40
	41	\wxheading{Include files}
	42
	43	<wx/layout.h>
	44
	45	\wxheading{See also}
	46
	47	\helpref{Overview and examples}{constraintsoverview},\rtfsp
	48	\helpref{wxIndividualLayoutConstraint}{wxindividuallayoutconstraint}, \helpref{wxWindow::SetConstraints}{wxwindowsetconstraints}
	49
	50	\latexignore{\rtfignore{\wxheading{Members}}}
	51
	52	\membersection{wxLayoutConstraints::wxLayoutConstraints}
	53
	54	\func{}{wxLayoutConstraints}{\void}
	55
	56	Constructor.
	57
	58	\membersection{wxLayoutConstraints::bottom}
	59
	60	\member{wxIndividualLayoutConstraint}{bottom}
	61
	62	Constraint for the bottom edge.
	63
	64	\membersection{wxLayoutConstraints::centreX}
	65
	66	\member{wxIndividualLayoutConstraint}{centreX}
	67
	68	Constraint for the horizontal centre point.
	69
	70	\membersection{wxLayoutConstraints::centreY}
	71
	72	\member{wxIndividualLayoutConstraint}{centreY}
	73
	74	Constraint for the vertical centre point.
	75
	76	\membersection{wxLayoutConstraints::height}
	77
	78	\member{wxIndividualLayoutConstraint}{height}
	79
	80	Constraint for the height.
	81
	82	\membersection{wxLayoutConstraints::left}
	83
	84	\member{wxIndividualLayoutConstraint}{left}
	85
	86	Constraint for the left-hand edge.
	87
	88	\membersection{wxLayoutConstraints::right}
	89
	90	\member{wxIndividualLayoutConstraint}{right}
	91
	92	Constraint for the right-hand edge.
	93
	94	\membersection{wxLayoutConstraints::top}
	95
	96	\member{wxIndividualLayoutConstraint}{top}
	97
	98	Constraint for the top edge.
	99
	100	\membersection{wxLayoutConstraints::width}
	101
	102	\member{wxIndividualLayoutConstraint}{width}
	103
	104	Constraint for the width.
	105
	106