From 9e2be6f02e5ca80575067f26138ca001fabfbeea Mon Sep 17 00:00:00 2001 From: Vadim Zeitlin Date: Sun, 28 Feb 1999 13:58:05 +0000 Subject: [PATCH] wxArrayString documentation added git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1826 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- docs/latex/wx/arrstrng.tex | 249 +++++++++++++++++++++++++++++++++++++ docs/latex/wx/classes.tex | 1 + docs/latex/wx/minimald.tex | 3 +- docs/latex/wx/tstring.tex | 4 +- 4 files changed, 254 insertions(+), 3 deletions(-) create mode 100644 docs/latex/wx/arrstrng.tex diff --git a/docs/latex/wx/arrstrng.tex b/docs/latex/wx/arrstrng.tex new file mode 100644 index 0000000000..e41d6102ed --- /dev/null +++ b/docs/latex/wx/arrstrng.tex @@ -0,0 +1,249 @@ +\section{\class{wxArrayString}}\label{wxarraystring} + +wxArrayString is an efficient container for storing +\helpref{wxString}{wxstring} objects. It has the same features as all +\helpref{wxArray}{wxarray} classes, i.e. it dynamically expands when new items +are added to it (so it is as easy to sue as a linked list), but the access +time to the elements is constant (instead of being linear in number of +elements as in the case of linked lists). It is also very size efficient and +doesn't take more space than a C array {\it wxString[]} type (wxArrayString +uses its knowledge of internals of wxString class to achieve this). + +This class is used in the same way as other dynamic \helpref{arrays}{wxarray}, +except that no {\it WX\_DEFINE\_ARRAY} declaration is needed for it. When a +string is added or inserted in the array, a copy of the string is created, so +the original string may be safely deleted (e.g. if it was a {\it char *} +pointer the memory it was using can be freed immediately after this). In +general, there is no need to worry about string memory deallocation when using +this class - it will always free the memory it uses itself. + +The references returned by \helpref{Item}{wxarraystringitem}, +\helpref{Last}{wxarraystringlast} or +\helpref{operator[]}{wxarraystringoperatorindex} are not constant, so the +array elements may be modified in place like this + +\begin{verbatim} + array.Last().MakeUpper(); +\end{verbatim} + +Finally, none of the methods of this class is virtual including its +destructor, so this class should not be derived from. + +\wxheading{Specialization of} + +Although this is not true strictly speaking, this class may be considered as a +specialization of \helpref{wxArray}{wxarray} class for the wxString member +data: it is not implemented like this, but it does have all of the wxArray +functions. + +\wxheading{Include files} + + + +\wxheading{See also} + +\helpref{wxArray}{wxarray}, \helpref{wxString}{wxstring}, \helpref{wxString +overview}{wxstringoverview} + +\latexignore{\rtfignore{\wxheading{Members}}} + +\membersection{wxArrayString::wxArrayString}\label{wxarraystringctor} + +\func{}{wxArrayString}{\void} + +\func{}{wxArrayString}{\param{const wxArrayString\&}{ array}} + +Default and copy constructors. + +\membersection{wxArrayString::\destruct{wxArrayString}}\label{wxarraystringdtor} + +\func{}{\destruct{wxArrayString}}{} + +Destructor frees memory occupied by the array strings. For the performance +reasons it is not virtual, so this class should not be derived from. + +\membersection{wxArrayString::operator=}\label{wxarraystringoperatorassign} + +\func{wxArrayString \&}{operator $=$}{\param{const wxArrayString\&}{ array}} + +Assignment operator. + +\membersection{wxArrayString::operator[]}\label{wxarraystringoperatorindex} + +\func{wxString\&}{operatorp[]}{\param{size\_t }{nIndex}} + +Return the array element at position {\it nIndex}. An assert failure will +result from an attempt to access an element beyond the end of array in debug +mode, but no check is done in release mode. + +This is the operator version of \helpref{Item}{wxarraystringitem} method. + +\membersection{wxArrayString::Add}\label{wxarraystringadd} + +\func{void}{Add}{\param{const wxString\& }{str}} + +Appends a new item to the array. + +See also: \helpref{Insert}{wxarraystringinsert} + +\membersection{wxArrayString::Alloc}\label{wxarraystringalloc} + +\func{void}{Alloc}{\param{size\_t }{nCount}} + +Preallocates enough memory to store {\it nCount} items. This function may be +used to improve array class performance before adding a known number of items +consecutively. + +See also: \helpref{Dynamic array memory management}{wxarraymemorymanagement} + +\membersection{wxArrayString::Clear}\label{wxarraystringclear} + +\func{void}{Clear}{\void} + +Clears the array contents and frees memory. + +See also: \helpref{Empty}{wxarraystringempty} + +\membersection{wxArrayString::Count}\label{wxarraystringcount} + +\constfunc{size\_t}{Count}{\void} + +Returns the number of items in the array. This function is deprecated and is +for backwards compatibility only, please use +\helpref{GetCount}{wxarraystringgetcount} instead. + +\membersection{wxArrayString::Empty}\label{wxarraystringempty} + +\func{void}{Empty}{\void} + +Empties the array: after a call to this function +\helpref{GetCount}{wxarraystringgetcount} will return $0$. However, this +function does not free the memory used by the array and so should be used when +the array is going to be reused for storing other strings. Otherwise, you +should use \helpref{Clear}{wxarraystringclear} to empty the array and free +memory. + +\membersection{wxArrayString::GetCount}\label{wxarraystringgetcount} + +\constfunc{size\_t}{GetCount}{\void} + +Returns the number of items in the array. + +\membersection{wxArrayString::Index}\label{wxarraystringindex} + +\func{int}{Index}{\param{const char *}{ sz}, \param{bool}{ bCase = TRUE}, \param{bool}{ bFromEnd = FALSE}} + +Search the element in the array, starting from the beginning if +{\it bFromEnd} is FALSE or from end otherwise. If {\it bCase}, comparison is +case sensitive (default), otherwise the case is ignored. + +Returns index of the first item matched or wxNOT\_FOUND if there is no match. + +\membersection{wxArrayString::Insert}\label{wxarraystringinsert} + +\func{void}{Insert}{\param{const wxString\& }{str}, \param{size\_t}{ nIndex}} + +Insert a new element in the array before the position {\it nIndex}. Thus, for +example, to insert the string in the beginning of the array you would write + +\begin{verbatim} +Insert("foo", 0); +\end{verbatim} + +If {\it nIndex} is equal to {\it GetCount() + 1} this function behaves as +\helpref{Add}{wxarraystringadd}. + +\membersection{wxArrayString::IsEmpty}\label{wxarraystringisempty} + +\func{}{IsEmpty}{} + +Returns TRUE if the array is empty, FALSE otherwise. This function returns the +same result as {\it GetCount() == 0} but is probably easier to read. + +\membersection{wxArrayString::Item}\label{wxarraystringitem} + +\constfunc{wxString\&}{Item}{\param{size\_t }{nIndex}} + +Return the array element at position {\it nIndex}. An assert failure will +result from an attempt to access an element beyond the end of array in debug +mode, but no check is done in release mode. + +See also \helpref{operator[]}{wxarraystringoperatorindex} for the operator +version. + +\membersection{wxArrayString::Last}\label{wxarraystringlast} + +\func{}{Last}{} + +Returns the last element of the array. Attempt to access the last element of +an empty array will result in assert failure in debug build, however no checks +are done in release mode. + +\membersection{wxArrayString::Remove (by value)}\label{wxarraystringremoveval} + +\func{void}{Remove}{\param{const char *}{ sz}} + +Removes the first item matching this value. An assert failure is provoked by +an attempt to remove an element which does not exist in debug build. + +See also: \helpref{Index}{wxarraystringindex}, \helpref{Remove}{wxarraystringremove} + +\membersection{wxArrayString::Remove (by index)}\label{wxarraystringremove} + +\func{void}{Remove}{\param{size\_t }{nIndex}} + +Removes the item at given position. + +See also: \helpref{Remove}{wxarraystringremoveval} + +\membersection{wxArrayString::Shrink}\label{wxarraystringshrink} + +\func{void}{Shrink}{\void} + +Releases the extra memory allocated by the array. This function is useful to +minimize the array memory consumption. + +See also: \helpref{Alloc}{wxarraystringalloc}, \helpref{Dynamic array memory management}{wxarraymemorymanagement} + +\membersection{wxArrayString::Sort (alphabetically)}\label{wxarraystringsort} + +\func{void}{Sort}{\param{bool}{ reverseOrder = FALSE}} + +Sorts the array in alphabetical order or in reverse alphabetical order if +{\it reverseOrder} is TRUE. + +See also: \helpref{Sort}{wxarraystringsortcallback} + +\membersection{wxArrayString::Sort (user defined)}\label{wxarraystringsortcallback} + +\func{void}{Sort}{\param{CompareFunction }{compareFunction}} + +Sorts the array using the specified {\it compareFunction} for item comparison. +{\it CompareFunction} is defined as a function taking two {\it const +wxString\&} parameters and returning {\it int} value less than, equal to or +greater than 0 if the first string is less than, equal to or greater than the +second one. + +Example: sorting strings by their length: + +\begin{verbatim} + +static int CompareStringLen(const wxString& first, const wxString& second) +{ + return first.length() - second.length(); +} + +... + +wxArrayString array; + +array.Add("one"); +array.Add("two"); +array.Add("three"); +array.Add("four"); + +array.Sort(CompareStringLen); + +\end{verbatim} + +See also: \helpref{Sort}{wxarraystringsort} diff --git a/docs/latex/wx/classes.tex b/docs/latex/wx/classes.tex index 7699ac12fa..b5160bd8b9 100644 --- a/docs/latex/wx/classes.tex +++ b/docs/latex/wx/classes.tex @@ -7,6 +7,7 @@ \input activevt.tex \input app.tex \input array.tex +\input arrstrng.tex \input autoobj.tex \input busycurs.tex \input button.tex diff --git a/docs/latex/wx/minimald.tex b/docs/latex/wx/minimald.tex index f3943e04ff..0e5f72265b 100644 --- a/docs/latex/wx/minimald.tex +++ b/docs/latex/wx/minimald.tex @@ -35,10 +35,11 @@ \setfooter{\thepage}{}{}{}{}{\thepage} % put your file(s) in an \input{} statement here -\input{wxstring.tex} +\input{arrstrng.tex} \addcontentsline{toc}{chapter}{Index} \setheader{{\it INDEX}}{}{}{}{}{{\it INDEX}}% \setfooter{\thepage}{}{}{}{}{\thepage} \end{document} + diff --git a/docs/latex/wx/tstring.tex b/docs/latex/wx/tstring.tex index 59667e009e..324e0a1ea1 100644 --- a/docs/latex/wx/tstring.tex +++ b/docs/latex/wx/tstring.tex @@ -1,6 +1,6 @@ \section{wxString overview}\label{wxstringoverview} -Classes: \helpref{wxString}{wxstring}, \helpref{wxArrayString}{wxarray}, \helpref{wxStringTokenizer}{wxstringtokenizer} +Classes: \helpref{wxString}{wxstring}, \helpref{wxArrayString}{wxarraystring}, \helpref{wxStringTokenizer}{wxstringtokenizer} \subsection{Introduction} @@ -149,7 +149,7 @@ There is another class which might be useful when working with wxString: be broken into tokens and replaces the standard C library {\it strtok()} function. -And the very last string-related class is \helpref{wxArrayString}{wxarray}: it +And the very last string-related class is \helpref{wxArrayString}{wxarraystring}: it is just a version of the "template" dynamic array class which is specialized to work with strings. Please note that this class is specially optimized (using its knowledge of the internal structure of wxString) for storing strings and so it is -- 2.45.2