f3845e889c
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13567 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
74 lines
2.1 KiB
TeX
74 lines
2.1 KiB
TeX
\section{\class{wxTreeItemData}}\label{wxtreeitemdata}
|
|
|
|
wxTreeItemData is some (arbitrary) user class associated with some item. The
|
|
main advantage of having this class (compared to the old untyped interface) is
|
|
that wxTreeItemData's are destroyed automatically by the tree and, as this
|
|
class has virtual dtor, it means that the memory will be automatically
|
|
freed. We don't just use wxObject instead of wxTreeItemData because
|
|
the size of this class is critical: in any real application, each tree leaf
|
|
will have wxTreeItemData associated with it and number of leaves may be
|
|
quite big.
|
|
|
|
Because the objects of this class are deleted by the tree, they should
|
|
always be allocated on the heap.
|
|
|
|
\wxheading{Derived from}
|
|
|
|
wxTreeItemId
|
|
|
|
\wxheading{Include files}
|
|
|
|
<wx/treectrl.h>
|
|
|
|
\wxheading{See also}
|
|
|
|
\helpref{wxTreeCtrl}{wxtreectrl}
|
|
|
|
\latexignore{\rtfignore{\wxheading{Members}}}
|
|
|
|
\membersection{wxTreeItemData::wxTreeItemData}\label{wxtreeitemdataconstr}
|
|
|
|
\func{}{wxTreeItemData}{\void}
|
|
|
|
Default constructor.
|
|
|
|
\pythonnote{The wxPython version of this constructor optionally
|
|
accepts any Python object as a parameter. This object is then
|
|
associated with the tree item using the wxTreeItemData as a
|
|
container.
|
|
|
|
In addition, the following methods are added in wxPython for accessing
|
|
the object:
|
|
|
|
\indented{2cm}{\begin{twocollist}\itemsep=0pt
|
|
\twocolitem{{\bf GetData()}}{Returns a reference to the Python Object}
|
|
\twocolitem{{\bf SetData(obj)}}{Associates a new Python Object with the
|
|
wxTreeItemData}
|
|
\end{twocollist}}
|
|
}
|
|
|
|
\perlnote{In wxPerl the constructor accepts as parameter an optional scalar,
|
|
and stores it as client data. You may retrieve this data by calling
|
|
{\bf GetData()}, and set it by callling {\bf SetData( data ).}
|
|
}
|
|
|
|
\membersection{wxTreeItemData::\destruct{wxTreeItemData}}
|
|
|
|
\func{void}{\destruct{wxTreeItemData}}{\void}
|
|
|
|
Virtual destructor.
|
|
|
|
\membersection{wxTreeItemData::GetId}\label{wxtreeitemdatagetid}
|
|
|
|
\func{const wxTreeItem\&}{GetId}{\void}
|
|
|
|
Returns the item associated with this node.
|
|
|
|
\membersection{wxTreeItemData::SetId}\label{wxtreeitemdatasetid}
|
|
|
|
\func{void}{SetId}{\param{const wxTreeItemId\&}{ id}}
|
|
|
|
Sets the item associated with this node.
|
|
|
|
|