added null pointer check and assert

[wxWidgets.git] / docs / latex / wx / treectrl.tex

diff --git a/docs/latex/wx/treectrl.tex b/docs/latex/wx/treectrl.tex
index 45d2fb9b2b5242588b0ca5621428f1765669feef..48fed6862a43e5eb09233daefa6167ef9ab262d9 100644 (file)
--- a/docs/latex/wx/treectrl.tex
+++ b/docs/latex/wx/treectrl.tex
@@ -1,8 +1,19 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Name:        treectrl.tex
+%% Purpose:     wxTreeCtrl documentation
+%% Author:      wxWidgets Team
+%% Modified by:
+%% Created:
+%% RCS-ID:      $Id$
+%% Copyright:   (c) wxWidgets Team
+%% License:     wxWindows license
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+

 \section{\class{wxTreeCtrl}}\label{wxtreectrl}
 
 A tree control presents information as a hierarchy, with items that may be expanded
 to show further items. Items in a tree control are referenced by wxTreeItemId handles,
 \section{\class{wxTreeCtrl}}\label{wxtreectrl}
 
 A tree control presents information as a hierarchy, with items that may be expanded
 to show further items. Items in a tree control are referenced by wxTreeItemId handles,

-which may be tested for validity by calling wxTreeItemId::IsOk.
+which may be tested for validity by calling \helpref{wxTreeItemId::IsOk}{wxtreeitemidisok}.

 
 To intercept events from a tree control, use the event table macros described in \helpref{wxTreeEvent}{wxtreeevent}.
 
 
 To intercept events from a tree control, use the event table macros described in \helpref{wxTreeEvent}{wxtreeevent}.
 


@@ -17,6 +28,10 @@ To intercept events from a tree control, use the event table macros described in
 
 <wx/treectrl.h>
 
 
 <wx/treectrl.h>
 

+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+

 \wxheading{Window styles}
 
 \twocolwidtha{5cm}
 \wxheading{Window styles}
 
 \twocolwidtha{5cm}


@@ -31,7 +46,7 @@ to show + and - buttons to the left of parent items.}
 to hide vertical level connectors.}
 \twocolitem{\windowstyle{wxTR\_FULL\_ROW\_HIGHLIGHT}}{Use this style to have the background
 colour and the selection highlight extend over the entire horizontal
 to hide vertical level connectors.}
 \twocolitem{\windowstyle{wxTR\_FULL\_ROW\_HIGHLIGHT}}{Use this style to have the background
 colour and the selection highlight extend over the entire horizontal

-row of the tree control window. (This flag is ignored under Windows unless you 
+row of the tree control window. (This flag is ignored under Windows unless you

 specify wxTR\_NO\_LINES as well.) }
 \twocolitem{\windowstyle{wxTR\_LINES\_AT\_ROOT}}{Use this style
 to show lines between root nodes.
 specify wxTR\_NO\_LINES as well.) }
 \twocolitem{\windowstyle{wxTR\_LINES\_AT\_ROOT}}{Use this style
 to show lines between root nodes.


@@ -54,8 +69,6 @@ to be deselected.  This is the default.}
 \twocolitem{\windowstyle{wxTR\_MULTIPLE}}{Use this style
 to allow a range of items to be selected.
 If a second range is selected, the current range, if any, is deselected.}
 \twocolitem{\windowstyle{wxTR\_MULTIPLE}}{Use this style
 to allow a range of items to be selected.
 If a second range is selected, the current range, if any, is deselected.}

-\twocolitem{\windowstyle{wxTR\_EXTENDED}}{Use this style
-to allow disjoint items to be selected.  (Only partially implemented; may not work in all cases.)}

 \twocolitem{\windowstyle{wxTR\_DEFAULT\_STYLE}}{The set of flags that are
 closest to the defaults for the native control for a particular toolkit.}
 \end{twocollist}
 \twocolitem{\windowstyle{wxTR\_DEFAULT\_STYLE}}{The set of flags that are
 closest to the defaults for the native control for a particular toolkit.}
 \end{twocollist}


@@ -104,10 +117,9 @@ wxTreeCtrl class uses the standard common treeview control under Win32
 implemented in the system library {\tt comctl32.dll}. Some versions of this
 library are known to have bugs with handling the tree control colours: the
 usual symptom is that the expanded items leave black (or otherwise incorrectly
 implemented in the system library {\tt comctl32.dll}. Some versions of this
 library are known to have bugs with handling the tree control colours: the
 usual symptom is that the expanded items leave black (or otherwise incorrectly

-coloured) background behind them, especially for the controls using non
-default background colour. The recommended solution is to upgrade the {\tt comctl32.dll}
-to a newer version: see 
-\urlref{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}{http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp}.
+coloured) background behind them, especially for the controls using non-default background colour. The recommended solution is to upgrade the {\tt comctl32.dll}
+to a newer version: see
+\urlref{http://www.microsoft.com/downloads/release.asp?ReleaseID=11916}{http://www.microsoft.com/downloads/release.asp?ReleaseID=11916}.

 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 


@@ -120,7 +132,7 @@ Default constructor.
 
 \func{}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
 \param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp
 
 \func{}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
 \param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp

-\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``listCtrl"}}
+\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``treeCtrl"}}

 
 Constructor, creating and showing a tree control.
 
 
 Constructor, creating and showing a tree control.
 


@@ -150,7 +162,7 @@ appropriately.}
 
 \func{void}{\destruct{wxTreeCtrl}}{\void}
 
 
 \func{void}{\destruct{wxTreeCtrl}}{\void}
 

-Destructor, destroying the list control.
+Destructor, destroying the tree control.

 
 
 \membersection{wxTreeCtrl::AddRoot}\label{wxtreectrladdroot}
 
 
 \membersection{wxTreeCtrl::AddRoot}\label{wxtreectrladdroot}


@@ -228,6 +240,28 @@ See also \helpref{SetStateImageList}{wxtreectrlsetstateimagelist}.
 Collapses the given item.
 
 
 Collapses the given item.
 
 

+\membersection{wxTreeCtrl::CollapseAll}\label{wxtreectrlcollapseall}
+
+\func{void}{CollapseAll}{\void}
+
+Collapses the root item.
+
+\wxheading{See also}
+
+\helpref{ExpandAll}{wxtreectrlexpandall}
+
+
+\membersection{wxTreeCtrl::CollapseAllChildren}\label{wxtreectrlcollapseallchildren}
+
+\func{void}{CollapseAllChildren}{\param{const wxTreeItemId\&}{ item}}
+
+Collapses this item and all of its children, recursively.
+
+\wxheading{See also}
+
+\helpref{ExpandAllChildren}{wxtreectrlexpandallchildren}
+
+

 \membersection{wxTreeCtrl::CollapseAndReset}\label{wxtreectrlcollapseandreset}
 
 \func{void}{CollapseAndReset}{\param{const wxTreeItemId\&}{ item}}
 \membersection{wxTreeCtrl::CollapseAndReset}\label{wxtreectrlcollapseandreset}
 
 \func{void}{CollapseAndReset}{\param{const wxTreeItemId\&}{ item}}


@@ -239,7 +273,7 @@ Collapses the given item and removes all children.
 
 \func{bool}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
 \param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp
 
 \func{bool}{wxTreeCtrl}{\param{wxWindow*}{ parent}, \param{wxWindowID}{ id},\rtfsp
 \param{const wxPoint\&}{ pos = wxDefaultPosition}, \param{const wxSize\&}{ size = wxDefaultSize},\rtfsp

-\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``listCtrl"}}
+\param{long}{ style = wxTR\_HAS\_BUTTONS}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``treeCtrl"}}

 
 Creates the tree control. See \helpref{wxTreeCtrl::wxTreeCtrl}{wxtreectrlconstr} for further details.
 
 
 Creates the tree control. See \helpref{wxTreeCtrl::wxTreeCtrl}{wxtreectrlconstr} for further details.
 


@@ -258,7 +292,7 @@ This function may cause a subsequent call to GetNextChild to fail.
 
 \func{void}{DeleteAllItems}{\void}
 
 
 \func{void}{DeleteAllItems}{\void}
 

-Deletes all the items in the control. Note that this may not generate 
+Deletes all items in the control. Note that this may not generate

 {\tt EVT\_TREE\_DELETE\_ITEM} events under some Windows versions although
 normally such event is generated for each removed item.
 
 {\tt EVT\_TREE\_DELETE\_ITEM} events under some Windows versions although
 normally such event is generated for each removed item.
 


@@ -268,7 +302,7 @@ normally such event is generated for each removed item.
 \func{void}{DeleteChildren}{\param{const wxTreeItemId\& }{item}}
 
 Deletes all children of the given item (but not the item itself). Note that
 \func{void}{DeleteChildren}{\param{const wxTreeItemId\& }{item}}
 
 Deletes all children of the given item (but not the item itself). Note that

-this will {\bf not} generate any events unlike 
+this will {\bf not} generate any events unlike

 \helpref{Delete}{wxtreectrldelete} method.
 
 If you have called \helpref{wxTreeCtrl::SetItemHasChildren}{wxtreectrlsetitemhaschildren}, you
 \helpref{Delete}{wxtreectrldelete} method.
 
 If you have called \helpref{wxTreeCtrl::SetItemHasChildren}{wxtreectrlsetitemhaschildren}, you


@@ -298,7 +332,7 @@ will be sent which can be vetoed as well.
 
 \func{void}{EndEditLabel}{\param{bool }{cancelEdit}}
 
 
 \func{void}{EndEditLabel}{\param{bool }{cancelEdit}}
 

-Ends label editing. If {\it cancelEdit} is {\tt true}, the edit will be cancelled.
+Ends label editing. If {\it cancelEdit} is \true, the edit will be cancelled.

 
 This function is currently supported under Windows only.
 
 
 This function is currently supported under Windows only.
 


@@ -321,23 +355,41 @@ Scrolls and/or expands items to ensure that the given item is visible.
 Expands the given item.
 
 
 Expands the given item.
 
 

+\membersection{wxTreeCtrl::ExpandAll}\label{wxtreectrlexpandall}
+
+\func{void}{ExpandAll}{\void}
+
+Expands all items in the tree.
+
+
+\membersection{wxTreeCtrl::ExpandAllChildren}\label{wxtreectrlexpandallchildren}
+
+\func{void}{ExpandAllChildren}{\param{const wxTreeItemId\&}{ item}}
+
+Expands the given item and all its children recursively.
+
+

 \membersection{wxTreeCtrl::GetBoundingRect}\label{wxtreectrlgetitemrect}
 
 \membersection{wxTreeCtrl::GetBoundingRect}\label{wxtreectrlgetitemrect}
 

-\constfunc{bool}{GetBoundingRect}{\param{const wxTreeItemId\&}{ item}, \param{wxRect\& }{rect}, \param{bool }{textOnly = {\tt false}}}
+\constfunc{bool}{GetBoundingRect}{\param{const wxTreeItemId\&}{ item}, \param{wxRect\& }{rect}, \param{bool }{textOnly = \false}}

 
 

-Retrieves the rectangle bounding the {\it item}. If {\it textOnly} is {\tt true},
+Retrieves the rectangle bounding the {\it item}. If {\it textOnly} is \true,

 only the rectangle around the item's label will be returned, otherwise the
 item's image is also taken into account.
 
 only the rectangle around the item's label will be returned, otherwise the
 item's image is also taken into account.
 

-The return value is {\tt true} if the rectangle was successfully retrieved or {\tt false}
-if it was not (in this case {\it rect} is not changed) - for example, if the
+The return value is \true if the rectangle was successfully retrieved or \false
+if it was not (in this case {\it rect} is not changed) -- for example, if the

 item is currently invisible.
 
 item is currently invisible.
 

+Notice that the rectangle coordinates are logical, not physical ones. So, for
+example, the x coordinate may be negative if the tree has a horizontal
+scrollbar and its position is not $0$.
+

 \pythonnote{The wxPython version of this method requires only the
 {\tt item} and {\tt textOnly} parameters.  The return value is either a
 {\tt wxRect} object or {\tt None}.}
 
 \pythonnote{The wxPython version of this method requires only the
 {\tt item} and {\tt textOnly} parameters.  The return value is either a
 {\tt wxRect} object or {\tt None}.}
 

-\perlnote{In wxPerl this method only takes the parameters {\tt item} and 
+\perlnote{In wxPerl this method only takes the parameters {\tt item} and

   {\tt textOnly}, and returns a Wx::Rect ( or undef ).}
 
 
   {\tt textOnly}, and returns a Wx::Rect ( or undef ).}
 
 


@@ -352,15 +404,15 @@ This function is only available in the generic version.
 
 \membersection{wxTreeCtrl::GetChildrenCount}\label{wxtreectrlgetchildrencount}
 
 
 \membersection{wxTreeCtrl::GetChildrenCount}\label{wxtreectrlgetchildrencount}
 

-\constfunc{size\_t}{GetChildrenCount}{\param{const wxTreeItemId\&}{ item}, \param{bool}{ recursively = {\tt true}}}
+\constfunc{unsigned int}{GetChildrenCount}{\param{const wxTreeItemId\&}{ item}, \param{bool}{ recursively = \true}}

 
 

-Returns the number of items in the branch. If {\it recursively} is {\tt true}, returns the total number
+Returns the number of items in the branch. If {\it recursively} is \true, returns the total number

 of descendants, otherwise only one level of children is counted.
 
 
 \membersection{wxTreeCtrl::GetCount}\label{wxtreectrlgetcount}
 
 of descendants, otherwise only one level of children is counted.
 
 
 \membersection{wxTreeCtrl::GetCount}\label{wxtreectrlgetcount}
 

-\constfunc{int}{GetCount}{\void}
+\constfunc{unsigned int}{GetCount}{\void}

 
 Returns the number of items in the control.
 
 
 Returns the number of items in the control.
 


@@ -387,7 +439,7 @@ to make these functions reentrant (i.e. allow more than one
 enumeration on one and the same object simultaneously). The cookie passed to
 GetFirstChild and GetNextChild should be the same variable.
 
 enumeration on one and the same object simultaneously). The cookie passed to
 GetFirstChild and GetNextChild should be the same variable.
 

-Returns an invalid tree item (i.e. IsOk() returns {\tt false}) if there are no further children.
+Returns an invalid tree item (i.e. IsOk() returns \false) if there are no further children.

 
 \wxheading{See also}
 
 
 \wxheading{See also}
 


@@ -551,7 +603,10 @@ Returns an invalid tree item if there are no further siblings.
 
 \constfunc{wxTreeItemId}{GetNextVisible}{\param{const wxTreeItemId\&}{ item}}
 
 
 \constfunc{wxTreeItemId}{GetNextVisible}{\param{const wxTreeItemId\&}{ item}}
 

-Returns the next visible item.
+Returns the next visible item or an invalid item if this item is the last
+visible one.
+
+Notice that the \arg{item} itself must be visible.

 
 
 \membersection{wxTreeCtrl::GetItemParent}\label{wxtreectrlgetitemparent}
 
 
 \membersection{wxTreeCtrl::GetItemParent}\label{wxtreectrlgetitemparent}


@@ -561,19 +616,6 @@ Returns the next visible item.
 Returns the item's parent.
 
 
 Returns the item's parent.
 
 

-\membersection{wxTreeCtrl::GetParent}\label{wxtreectrlgetparent}
-
-\constfunc{wxTreeItemId}{GetParent}{\param{const wxTreeItemId\&}{ item}}
-
-{\bf NOTE:} This function is deprecated and will only work if {\tt WXWIN\_COMPATIBILITY\_2\_2}
-is defined.  Use \helpref{wxTreeCtrl::GetItemParent}{wxtreectrlgetitemparent} instead.
-
-Returns the item's parent.
-
-\pythonnote{This method is named {\tt GetItemParent} to avoid a name
-clash with wxWindow::GetParent.}
-
-

 \membersection{wxTreeCtrl::GetPrevSibling}\label{wxtreectrlgetprevsibling}
 
 \constfunc{wxTreeItemId}{GetPrevSibling}{\param{const wxTreeItemId\&}{ item}}
 \membersection{wxTreeCtrl::GetPrevSibling}\label{wxtreectrlgetprevsibling}
 
 \constfunc{wxTreeItemId}{GetPrevSibling}{\param{const wxTreeItemId\&}{ item}}


@@ -591,7 +633,22 @@ Returns an invalid tree item if there are no further children.
 
 \constfunc{wxTreeItemId}{GetPrevVisible}{\param{const wxTreeItemId\&}{ item}}
 
 
 \constfunc{wxTreeItemId}{GetPrevVisible}{\param{const wxTreeItemId\&}{ item}}
 

-Returns the previous visible item.
+Returns the previous visible item or an invalid item if this item is the first
+visible one.
+
+Notice that the \arg{item} itself must be visible.
+
+
+\membersection{wxTreeCtrl::GetQuickBestSize}\label{wxtreectrlgetquickbestsize}
+
+\constfunc{bool}{GetQuickBestSize}{\void}
+
+Returns true if the control will use a quick calculation for the best size,
+looking only at the first and last items. The default is false.
+
+\wxheading{See also}
+
+\helpref{wxTreeCtrl::SetQuickBestSize}{wxtreectrlsetquickbestsize}

 
 
 \membersection{wxTreeCtrl::GetRootItem}\label{wxtreectrlgetrootitem}
 
 
 \membersection{wxTreeCtrl::GetRootItem}\label{wxtreectrlgetrootitem}


@@ -605,8 +662,8 @@ Returns the root item for the tree control.
 
 \constfunc{int}{GetItemSelectedImage}{\param{const wxTreeItemId\& }{item}}
 
 
 \constfunc{int}{GetItemSelectedImage}{\param{const wxTreeItemId\& }{item}}
 

-Gets the selected item image (this function is obsolete, use
-{\tt GetItemImage(item, wxTreeItemIcon\_Selected}) instead).
+Gets the selected item image (this function is obsolete, use 
+{\tt GetItemImage(item, wxTreeItemIcon\_Selected)} instead).

 
 
 \membersection{wxTreeCtrl::GetSelection}\label{wxtreectrlgetselection}
 
 
 \membersection{wxTreeCtrl::GetSelection}\label{wxtreectrlgetselection}


@@ -621,7 +678,7 @@ this style.
 
 \membersection{wxTreeCtrl::GetSelections}\label{wxtreectrlgetselections}
 
 
 \membersection{wxTreeCtrl::GetSelections}\label{wxtreectrlgetselections}
 

-\constfunc{size\_t}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}}
+\constfunc{unsigned int}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}}

 
 Fills the array of tree items passed in with the currently selected items. This
 function can be called only if the control has the wxTR\_MULTIPLE style.
 
 Fills the array of tree items passed in with the currently selected items. This
 function can be called only if the control has the wxTR\_MULTIPLE style.


@@ -644,7 +701,7 @@ Returns the state image list (from which application-defined state images are ta
 
 \membersection{wxTreeCtrl::HitTest}\label{wxtreectrlhittest}
 
 
 \membersection{wxTreeCtrl::HitTest}\label{wxtreectrlhittest}
 

-\func{wxTreeItemId}{HitTest}{\param{const wxPoint\& }{point}, \param{int\& }{flags}}
+\constfunc{wxTreeItemId}{HitTest}{\param{const wxPoint\& }{point}, \param{int\& }{flags}}

 
 Calculates which (if any) item is under the given point, returning the tree item
 id at this point plus extra information {\it flags}. {\it flags} is a bitlist of the following:
 
 Calculates which (if any) item is under the given point, returning the tree item
 id at this point plus extra information {\it flags}. {\it flags} is a bitlist of the following:


@@ -696,37 +753,44 @@ both selected and unselected items.
 
 \constfunc{bool}{IsBold}{\param{const wxTreeItemId\& }{item}}
 
 
 \constfunc{bool}{IsBold}{\param{const wxTreeItemId\& }{item}}
 

-Returns {\tt true} if the given item is in bold state.
+Returns \true if the given item is in bold state.

 
 See also: \helpref{SetItemBold}{wxtreectrlsetitembold}
 
 
 
 See also: \helpref{SetItemBold}{wxtreectrlsetitembold}
 
 

+\membersection{wxTreeCtrl::IsEmpty}\label{wxtreectrlisempty}
+
+\constfunc{bool}{IsEmpty}{}
+
+Returns \true if the control is empty (i.e. has no items, even no root one).
+
+

 \membersection{wxTreeCtrl::IsExpanded}\label{wxtreectrlisexpanded}
 
 \constfunc{bool}{IsExpanded}{\param{const wxTreeItemId\&}{ item}}
 
 \membersection{wxTreeCtrl::IsExpanded}\label{wxtreectrlisexpanded}
 
 \constfunc{bool}{IsExpanded}{\param{const wxTreeItemId\&}{ item}}
 

-Returns {\tt true} if the item is expanded (only makes sense if it has children).
+Returns \true if the item is expanded (only makes sense if it has children).

 
 
 \membersection{wxTreeCtrl::IsSelected}\label{wxtreectrlisselected}
 
 \constfunc{bool}{IsSelected}{\param{const wxTreeItemId\&}{ item}}
 
 
 
 \membersection{wxTreeCtrl::IsSelected}\label{wxtreectrlisselected}
 
 \constfunc{bool}{IsSelected}{\param{const wxTreeItemId\&}{ item}}
 

-Returns {\tt true} if the item is selected.
+Returns \true if the item is selected.

 
 
 \membersection{wxTreeCtrl::IsVisible}\label{wxtreectrlisvisible}
 
 \constfunc{bool}{IsVisible}{\param{const wxTreeItemId\&}{ item}}
 
 
 
 \membersection{wxTreeCtrl::IsVisible}\label{wxtreectrlisvisible}
 
 \constfunc{bool}{IsVisible}{\param{const wxTreeItemId\&}{ item}}
 

-Returns {\tt true} if the item is visible (it might be outside the view, or not expanded).
+Returns \true if the item is visible on the screen.

 
 
 \membersection{wxTreeCtrl::ItemHasChildren}\label{wxtreectrlitemhaschildren}
 
 \constfunc{bool}{ItemHasChildren}{\param{const wxTreeItemId\&}{ item}}
 
 
 
 \membersection{wxTreeCtrl::ItemHasChildren}\label{wxtreectrlitemhaschildren}
 
 \constfunc{bool}{ItemHasChildren}{\param{const wxTreeItemId\&}{ item}}
 

-Returns {\tt true} if the item has children.
+Returns \true if the item has children.

 
 
 \membersection{wxTreeCtrl::OnCompareItems}\label{wxtreectrloncompareitems}
 
 
 \membersection{wxTreeCtrl::OnCompareItems}\label{wxtreectrloncompareitems}


@@ -738,7 +802,12 @@ items in the tree control. The function should return a negative, zero or
 positive value if the first item is less than, equal to or greater than the
 second one.
 
 positive value if the first item is less than, equal to or greater than the
 second one.
 

-The base class version compares items alphabetically.
+Please note that you \textbf{must} use wxRTTI macros 
+\helpref{DECLARE\_DYNAMIC\_CLASS}{declaredynamicclass} and 
+\helpref{IMPLEMENT\_DYNAMIC\_CLASS}{implementdynamicclass} if you override this
+function because otherwise the base class considers that it is not overridden
+and uses the default comparison, i.e. sorts the items alphabetically, which
+allows it optimize away the calls to the virtual function completely.

 
 See also: \helpref{SortChildren}{wxtreectrlsortchildren}
 
 
 See also: \helpref{SortChildren}{wxtreectrlsortchildren}
 


@@ -766,7 +835,7 @@ Scrolls the specified item into view.
 
 \membersection{wxTreeCtrl::SelectItem}\label{wxtreectrlselectitem}
 
 
 \membersection{wxTreeCtrl::SelectItem}\label{wxtreectrlselectitem}
 

-\func{bool}{SelectItem}{\param{const wxTreeItemId\&}{ item}, \param{bool }{select = \true}}
+\func{void}{SelectItem}{\param{const wxTreeItemId\&}{ item}, \param{bool }{select = \true}}

 
 Selects the given item. In multiple selection controls, can be also used to
 deselect a currently selected item if the value of \arg{select} is false.
 
 Selects the given item. In multiple selection controls, can be also used to
 deselect a currently selected item if the value of \arg{select} is false.


@@ -816,9 +885,9 @@ Sets the colour of the item's background.
 
 \membersection{wxTreeCtrl::SetItemBold}\label{wxtreectrlsetitembold}
 
 
 \membersection{wxTreeCtrl::SetItemBold}\label{wxtreectrlsetitembold}
 

-\func{void}{SetItemBold}{\param{const wxTreeItemId\& }{item}, \param{bool}{ bold = {\tt true}}}
+\func{void}{SetItemBold}{\param{const wxTreeItemId\& }{item}, \param{bool}{ bold = \true}}

 
 

-Makes item appear in bold font if {\it bold} parameter is {\tt true} or resets it to
+Makes item appear in bold font if {\it bold} parameter is \true or resets it to

 the normal state.
 
 See also: \helpref{IsBold}{wxtreectrlisbold}
 the normal state.
 
 See also: \helpref{IsBold}{wxtreectrlisbold}


@@ -848,7 +917,7 @@ tree->GetItemData(item)->SetData(data).}
 
 \membersection{wxTreeCtrl::SetItemDropHighlight}\label{wxtreectrlsetitemdrophighlight}
 
 
 \membersection{wxTreeCtrl::SetItemDropHighlight}\label{wxtreectrlsetitemdrophighlight}
 

-\func{void}{SetItemDropHighlight}{\param{const wxTreeItemId\&}{ item}, \param{bool}{highlight = {\tt true}}}
+\func{void}{SetItemDropHighlight}{\param{const wxTreeItemId\&}{ item}, \param{bool}{highlight = \true}}

 
 Gives the item the visual feedback for Drag'n'Drop actions, which is
 useful if something is dragged from the outside onto the tree control
 
 Gives the item the visual feedback for Drag'n'Drop actions, which is
 useful if something is dragged from the outside onto the tree control


@@ -870,7 +939,7 @@ although font attributes may vary.
 
 \membersection{wxTreeCtrl::SetItemHasChildren}\label{wxtreectrlsetitemhaschildren}
 
 
 \membersection{wxTreeCtrl::SetItemHasChildren}\label{wxtreectrlsetitemhaschildren}
 

-\func{void}{SetItemHasChildren}{\param{const wxTreeItemId\&}{ item}, \param{bool }{hasChildren = {\tt true}}}
+\func{void}{SetItemHasChildren}{\param{const wxTreeItemId\&}{ item}, \param{bool }{hasChildren = \true}}

 
 Force appearance of the button next to the item. This is useful to
 allow the user to expand the items which don't have any children now,
 
 Force appearance of the button next to the item. This is useful to
 allow the user to expand the items which don't have any children now,


@@ -891,7 +960,8 @@ for the description of the {\it which} parameter.
 
 \func{void}{SetItemSelectedImage}{\param{const wxTreeItemId\&}{ item}, \param{int }{selImage}}
 
 
 \func{void}{SetItemSelectedImage}{\param{const wxTreeItemId\&}{ item}, \param{int }{selImage}}
 

-Sets the selected item image (this function is obsolete, use {\tt SetItemImage(item, wxTreeItemIcon\_Selected}) instead).
+Sets the selected item image (this function is obsolete, use 
+{\tt SetItemImage(item, wxTreeItemIcon\_Selected)} instead).

 
 
 \membersection{wxTreeCtrl::SetItemText}\label{wxtreectrlsetitemtext}
 
 
 \membersection{wxTreeCtrl::SetItemText}\label{wxtreectrlsetitemtext}


@@ -908,6 +978,19 @@ Sets the item label.
 Sets the colour of the item's text.
 
 
 Sets the colour of the item's text.
 
 

+\membersection{wxTreeCtrl::SetQuickBestSize}\label{wxtreectrlsetquickbestsize}
+
+\func{void}{SetQuickBestSize}{\param{bool}{ quickBestSize}}
+
+If true is passed, specifies that the control will use a quick calculation for the best size,
+looking only at the first and last items. Otherwise, it will look at all items.
+The default is false.
+
+\wxheading{See also}
+
+\helpref{wxTreeCtrl::GetQuickBestSize}{wxtreectrlgetquickbestsize}
+
+

 \membersection{wxTreeCtrl::SetStateImageList}\label{wxtreectrlsetstateimagelist}
 
 \func{void}{SetStateImageList}{\param{wxImageList*}{ imageList}}
 \membersection{wxTreeCtrl::SetStateImageList}\label{wxtreectrlsetstateimagelist}
 
 \func{void}{SetStateImageList}{\param{wxImageList*}{ imageList}}


@@ -979,3 +1062,63 @@ all items if it does have this style.
 Unselects the given item. This works in multiselection controls only.
 
 
 Unselects the given item. This works in multiselection controls only.
 
 

+
+
+
+%% the wxTreeItemId opaque class
+
+
+\section{\class{wxTreeItemId}}\label{wxtreeitemid}
+
+An opaque reference to a tree item.
+
+
+\wxheading{Derived from}
+
+None
+
+\wxheading{Include files}
+
+<wx/treebase.h>
+
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
+\wxheading{See also}
+
+\helpref{wxTreeCtrl}{wxtreectrl}, \helpref{wxTreeItemData}{wxtreeitemdata},\\
+\helpref{wxTreeCtrl overview}{wxtreectrloverview}
+
+
+\latexignore{\rtfignore{\wxheading{Members}}}
+
+\membersection{wxTreeItemId::wxTreeItemId}\label{wxtreeitemidconstr}
+
+\func{}{wxTreeItemId}{\void}
+
+Default constructor. wxTreemItemIds are not meant to be constructed explicitly by
+the user; they are returned by the \helpref{wxTreeCtrl}{wxtreectrl} functions instead.
+
+
+\membersection{wxTreeItemId::IsOk}\label{wxtreeitemidisok}
+
+\constfunc{bool}{IsOk}{}
+
+Returns \true if this instance is referencing a valid tree item.
+
+
+\membersection{Operators}\label{wxtreeitemidoperators}
+
+\constfunc{void}{operator $!$}{}
+
+Antonym of \helpref{IsOk}{wxtreeitemidisok}, i.e. returns \true only if the
+item is not valid.
+
+
+\constfunc{bool}{operator $==$}{\param{const wxTreeItemId\& }{item}}
+
+\constfunc{bool}{operator $!=$}{\param{const wxTreeItemId\& }{item}}
+
+Operators for comparison between \helpref{wxTreeItemId}{wxtreeitemid} objects.
+