X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2edb0bdef6238c8c246b6978bc14828b7033d931..9379c0d752144826342fa2688a77aa5cccea3d9b:/docs/latex/wx/list.tex diff --git a/docs/latex/wx/list.tex b/docs/latex/wx/list.tex index f7a6cd830a..5144cf38d3 100644 --- a/docs/latex/wx/list.tex +++ b/docs/latex/wx/list.tex @@ -1,18 +1,30 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Name: list.tex +%% Purpose: wxList +%% Author: wxWidgets Team +%% Modified by: +%% Created: +%% RCS-ID: $Id$ +%% Copyright: (c) wxWidgets Team +%% License: wxWindows license +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + \section{\class{wxList}}\label{wxlist} -wxList classes provide linked list functionality for wxWindows, and for an +wxList classes provide linked list functionality for wxWidgets, and for an application if it wishes. Depending on the form of constructor used, a list -can be keyed on integer or string keys to provide a primitive look-up ability. +can be keyed on integer or string keys to provide a primitive look-up ability, +but please note that this feature is {\bf deprecated}. See \helpref{wxHashMap}{wxhashmap}\rtfsp for a faster method of storage when random access is required. -While wxList class in the previous versions of wxWindows only could contain +While wxList class in the previous versions of wxWidgets only could contain elements of type wxObject and had essentially untyped interface (thus allowing you to put apples in the list and read back oranges from it), the new wxList classes family may contain elements of any type and has much more strict type checking. Unfortunately, it also requires an additional line to be inserted in your program for each list class you use (which is the only solution short of -using templates which is not done in wxWindows because of portability issues). +using templates which is not done in wxWidgets because of portability issues). The general idea is to have the base class wxListBase working with {\it void *} data but make all of its dangerous (because untyped) functions protected, so @@ -50,7 +62,7 @@ macros): // also have MyList::Node type which is the type-safe version of wxNode. MyList list; MyListElement element; - list.Append(element); // ok + list.Append(&element); // ok list.Append(17); // error: incorrect type // let's iterate over the list @@ -65,12 +77,14 @@ macros): For compatibility with previous versions wxList and wxStringList classes are still defined, but their usage is deprecated and they will disappear in the future versions completely. The use of the latter is especially discouraged as -it is not only unsafe but is also much less efficient than +it is not only unsafe but is also much less efficient than \helpref{wxArrayString}{wxarraystring} class. -In the documentation of the list classes below, you should replace wxNode with -wxListName::Node and wxObject with the list element type (i.e. the first -parameter of WX\_DECLARE\_LIST) for the template lists. +In the documentation of the list classes below, the template notations are +used even though these classes are not really templates at all -- but it helps +to think about them as if they were. You should replace wxNode with +wxListName::Node and T itself with the list element type (i.e. the first +parameter of WX\_DECLARE\_LIST). \wxheading{Derived from} @@ -127,20 +141,22 @@ members for getting to the next or previous node. \wxheading{See also} -\helpref{wxNode}{wxnode}, \helpref{wxStringList}{wxstringlist}, +\helpref{wxNode}{wxnode}, \helpref{wxArray}{wxarray} \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxList::wxList} +\membersection{wxList::wxList}\label{wxlistctor} \func{}{wxList}{\void} -\func{}{wxList}{\param{unsigned int}{ key\_type}} +\func{}{wxList}{\param{int}{ n}, \param{T *}{objects[]}} -\func{}{wxList}{\param{int}{ n}, \param{wxObject *}{objects[]}} +\func{}{wxList}{\param{T *}{object}, ...} -\func{}{wxList}{\param{wxObject *}{object}, ...} +{\bf Note}: keyed lists are deprecated and should not be used in new code. + +\func{}{wxList}{\param{unsigned int}{ key\_type}} Constructors. {\it key\_type} is one of wxKEY\_NONE, wxKEY\_INTEGER, or wxKEY\_STRING, and indicates what sort of keying is required (if any). @@ -150,7 +166,7 @@ and indicates what sort of keying is required (if any). The variable-length argument list constructor must be supplied with a terminating NULL. -\membersection{wxList::\destruct{wxList}} +\membersection{wxList::\destruct{wxList}}\label{wxlistdtor} \func{}{\destruct{wxList}}{\void} @@ -159,15 +175,18 @@ client data held in the nodes. \membersection{wxList::Append}\label{wxlistappend} -\func{wxNode *}{Append}{\param{wxObject *}{object}} +\func{wxNode *}{Append}{\param{T *}{object}} -\func{wxNode *}{Append}{\param{long}{ key}, \param{wxObject *}{object}} +{\bf Note}: keyed lists are deprecated and should not be used in new code. -\func{wxNode *}{Append}{\param{const wxString\& }{key}, \param{wxObject *}{object}} +\func{wxNode *}{Append}{\param{long}{ key}, \param{T *}{object}} -Appends a new {\bf wxNode} to the end of the list and puts a pointer to the -\rtfsp{\it object} in the node. The last two forms store a key with the object for -later retrieval using the key. The new node is returned in each case. +\func{wxNode *}{Append}{\param{const wxString\& }{key}, \param{T *}{object}} + +Appends a new \helpref{wxNode}{wxnode} to the end of the list and puts a +pointer to the \rtfsp{\it object} in the node. The last two forms store a key +with the object for later retrieval using the key. The new node is returned in +each case. The key string is copied and stored by the list implementation. @@ -176,33 +195,45 @@ The key string is copied and stored by the list implementation. \func{void}{Clear}{\void} Clears the list (but does not delete the client data stored with each node -unless you called DeleteContents(TRUE), in which case it deletes data). +unless you called DeleteContents({\tt true}), in which case it deletes data). \membersection{wxList::DeleteContents}\label{wxlistdeletecontents} \func{void}{DeleteContents}{\param{bool}{ destroy}} -If {\it destroy} is TRUE, instructs the list to call {\it delete} on the client contents of -a node whenever the node is destroyed. The default is FALSE. +If {\it destroy} is {\tt true}, instructs the list to call {\it delete} on the client contents of +a node whenever the node is destroyed. The default is {\tt false}. \membersection{wxList::DeleteNode}\label{wxlistdeletenode} -\func{bool}{DeleteNode}{\param{wxNode *}{node}} +\func{bool}{DeleteNode}{\param{wxNode *}{node}} -Deletes the given node from the list, returning TRUE if successful. +Deletes the given node from the list, returning {\tt true} if successful. \membersection{wxList::DeleteObject}\label{wxlistdeleteobject} -\func{bool}{DeleteObject}{\param{wxObject *}{object}} +\func{bool}{DeleteObject}{\param{T *}{object}} Finds the given client {\it object} and deletes the appropriate node from the list, returning -TRUE if successful. The application must delete the actual object separately. +{\tt true} if successful. The application must delete the actual object separately. + +\membersection{wxList::Erase}\label{wxlisterase} + +\func{void}{Erase}{\param{wxNode *}{node}} + +Removes element at given position. \membersection{wxList::Find}\label{wxlistfind} -\func{wxNode *}{Find}{\param{long}{ key}} +\func{wxNode *}{Find}{\param{T *}{ object}} -\func{wxNode *}{Find}{\param{const wxString\& }{key}} +Returns the node whose client data is {\it object} or NULL if none found. + +{\bf Note}: keyed lists are deprecated and should not be used in new code. + +\func{wxNode *}{Find}{\param{long}{ key}} + +\func{wxNode *}{Find}{\param{const wxString\& }{key}} Returns the node whose stored key matches {\it key}. Use on a keyed list only. @@ -214,49 +245,56 @@ Returns the number of elements in the list. \membersection{wxList::GetFirst}\label{wxlistgetfirst} -\func{wxNode *}{GetFirst}{\void} +\func{wxNode *}{GetFirst}{\void} Returns the first node in the list (NULL if the list is empty). \membersection{wxList::GetLast}\label{wxlistgetlast} -\func{wxNode *}{GetLast}{\void} +\func{wxNode *}{GetLast}{\void} Returns the last node in the list (NULL if the list is empty). \membersection{wxList::IndexOf}\label{wxlistindexof} -\func{int}{IndexOf}{\param{wxObject*}{ obj }} +\func{int}{IndexOf}{\param{T*}{ obj }} -Returns the index of {\it obj} within the list or wxNOT\_FOUND if {\it obj} +Returns the index of {\it obj} within the list or {\tt wxNOT\_FOUND} if {\it obj} is not found in the list. \membersection{wxList::Insert}\label{wxlistinsert} -\func{wxNode *}{Insert}{\param{wxObject *}{object}} +\func{wxNode *}{Insert}{\param{T *}{object}} Insert object at front of list. -\func{wxNode *}{Insert}{\param{size\_t }{position}, \param{wxObject *}{object}} +\func{wxNode *}{Insert}{\param{size\_t }{position}, \param{T *}{object}} Insert object before {\it position}, i.e. the index of the new item in the list will be equal to {\it position}. {\it position} should be less than or equal to \helpref{GetCount}{wxlistgetcount}; if it is equal to it, this is the same as calling \helpref{Append}{wxlistappend}. -\func{wxNode *}{Insert}{\param{wxNode *}{node}, \param{wxObject *}{object}} +\func{wxNode *}{Insert}{\param{wxNode *}{node}, \param{T *}{object}} Inserts the object before the given {\it node}. -\membersection{wxList::Item}\label{wxlistitem} +\membersection{wxList::IsEmpty}\label{wxlistisempty} + +\constfunc{bool}{IsEmpty}{\void} -\constfunc{wxNode *}{Item}{\param{size\_t }{index}} +Returns {\tt true} if the list is empty, {\tt false} otherwise. + +% Use different label name to avoid clashing with wxListItem label +\membersection{wxList::Item}\label{wxlistitemfunc} + +\constfunc{wxNode *}{Item}{\param{size\_t }{index}} Returns the node at given position in the list. \membersection{wxList::Member}\label{wxlistmember} -\func{wxNode *}{Member}{\param{wxObject *}{object}} +\func{wxNode *}{Member}{\param{T *}{object}} {\bf NB:} This function is deprecated, use \helpref{Find}{wxlistfind} instead. @@ -264,9 +302,9 @@ Returns the node associated with {\it object} if it is in the list, NULL otherwi \membersection{wxList::Nth}\label{wxlistnth} -\func{wxNode *}{Nth}{\param{int}{ n}} +\func{wxNode *}{Nth}{\param{int}{ n}} -{\bf NB:} This function is deprecated, use \helpref{Item}{wxlistitem} instead. +{\bf NB:} This function is deprecated, use \helpref{Item}{wxlistitemfunc} instead. Returns the {\it nth} node in the list, indexing from zero (NULL if the list is empty or the nth node could not be found). @@ -303,7 +341,7 @@ Example: int listcompare(const void *arg1, const void *arg2) { return(compare(**(wxString **)arg1, // use the wxString 'compare' - **(wxString **)arg2)); // function + **(wxString **)arg2)); // function } void main() @@ -316,4 +354,3 @@ Example: list.Sort(listcompare); } \end{verbatim} -