wxR?_USE_CHECKBOX style for wxPalmOS.

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

diff --git a/docs/latex/wx/array.tex b/docs/latex/wx/array.tex
index 1918006e7478ebfeac7c1a7011b5ef294a5d5bf9..3e806ad938763453284c2f38c7ea96b2523da548 100644 (file)
--- a/docs/latex/wx/array.tex
+++ b/docs/latex/wx/array.tex
@@ -22,7 +22,7 @@ but the price is preallocating the memory in advance. In the \helpref{memory man
 you may find some useful hints about optimizing wxArray memory usage. As for executable size, all
 wxArray functions are inline, so they do not take {\it any space at all}.
 
 you may find some useful hints about optimizing wxArray memory usage. As for executable size, all
 wxArray functions are inline, so they do not take {\it any space at all}.
 

-wxWindows has three different kinds of array. All of them derive from
+wxWidgets has three different kinds of array. All of them derive from

 wxBaseArray class which works with untyped data and can not be used directly.
 The standard macros WX\_DEFINE\_ARRAY(), WX\_DEFINE\_SORTED\_ARRAY() and
 WX\_DEFINE\_OBJARRAY() are used to define a new class deriving from it. The
 wxBaseArray class which works with untyped data and can not be used directly.
 The standard macros WX\_DEFINE\_ARRAY(), WX\_DEFINE\_SORTED\_ARRAY() and
 WX\_DEFINE\_OBJARRAY() are used to define a new class deriving from it. The


@@ -39,14 +39,14 @@ deleted when the element is removed from the array. It should be noted that
 all of wxArray's functions are inline, so it costs strictly nothing to define as
 many array types as you want (either in terms of the executable size or the
 speed) as long as at least one of them is defined and this is always the case
 all of wxArray's functions are inline, so it costs strictly nothing to define as
 many array types as you want (either in terms of the executable size or the
 speed) as long as at least one of them is defined and this is always the case

-because wxArrays are used by wxWindows internally. This class has one serious
+because wxArrays are used by wxWidgets internally. This class has one serious

 limitation: it can only be used for storing integral types (bool, char, short,
 int, long and their unsigned variants) or pointers (of any kind). An attempt
 to use with objects of sizeof() greater than sizeof(long) will provoke a
 runtime assertion failure, however declaring a wxArray of floats will not (on
 the machines where sizeof(float) <= sizeof(long)), yet it will {\bf not} work,
 please use wxObjArray for storing floats and doubles (NB: a more efficient
 limitation: it can only be used for storing integral types (bool, char, short,
 int, long and their unsigned variants) or pointers (of any kind). An attempt
 to use with objects of sizeof() greater than sizeof(long) will provoke a
 runtime assertion failure, however declaring a wxArray of floats will not (on
 the machines where sizeof(float) <= sizeof(long)), yet it will {\bf not} work,
 please use wxObjArray for storing floats and doubles (NB: a more efficient

-wxArrayDouble class is scheduled for the next release of wxWindows).
+wxArrayDouble class is scheduled for the next release of wxWidgets).

 
 wxSortedArray is a wxArray variant which should be used when searching in the
 array is a frequently used operation. It requires you to define an additional
 
 wxSortedArray is a wxArray variant which should be used when searching in the
 array is a frequently used operation. It requires you to define an additional


@@ -97,7 +97,7 @@ class MyDirectory
 // now that we have MyDirectory declaration in scope we may finish the
 // definition of ArrayOfDirectories -- note that this expands into some C++
 // code and so should only be compiled once (i.e., don't put this in the
 // now that we have MyDirectory declaration in scope we may finish the
 // definition of ArrayOfDirectories -- note that this expands into some C++
 // code and so should only be compiled once (i.e., don't put this in the

-// header, but into a source file or you will get linkin errors)
+// header, but into a source file or you will get linking errors)

 #include <wx/arrimpl.cpp> // this is a magic incantation which must be done!
 WX_DEFINE_OBJARRAY(ArrayOfDirectories);
 
 #include <wx/arrimpl.cpp> // this is a magic incantation which must be done!
 WX_DEFINE_OBJARRAY(ArrayOfDirectories);
 


@@ -117,10 +117,14 @@ Things are much simpler for wxArray and wxSortedArray however: it is enough
 just to write
 
 \begin{verbatim} 
 just to write
 
 \begin{verbatim} 

-WX_DEFINE_ARRAY(MyDirectory *, ArrayOfDirectories);
-WX_DEFINE_SORTED_ARRAY(MyFile *, ArrayOfFiles);
+WX_DEFINE_ARRAY(int, ArrayOfDirectories);
+WX_DEFINE_SORTED_ARRAY(int, ArrayOfFiles);

 \end{verbatim}
 
 \end{verbatim}
 

+i.e. there is only one {\tt DEFINE} macro and no need for separate 
+{\tt DECLARE} one.
+
+

 \wxheading{See also:}
 
 \helpref{Container classes overview}{wxcontaineroverview}, \helpref{wxList}{wxlist}
 \wxheading{See also:}
 
 \helpref{Container classes overview}{wxcontaineroverview}, \helpref{wxList}{wxlist}


@@ -132,7 +136,7 @@ for wxObjArray.
 
 \latexignore{\rtfignore{\wxheading{Function groups}}}
 
 
 \latexignore{\rtfignore{\wxheading{Function groups}}}
 

-\membersection{Macros for template array definition}
+\membersection{Macros for template array definition}\label{arraymacros}

 
 To use an array you must first define the array class. This is done with the
 help of the macros in this section. The class of array elements must be (at
 
 To use an array you must first define the array class. This is done with the
 help of the macros in this section. The class of array elements must be (at


@@ -152,7 +156,40 @@ WX\_DEFINE\_OBJARRAY macro.
 \helpref{WX\_DEFINE\_EXPORTED\_OBJARRAY}{wxdefineobjarray}\\
 \helpref{WX\_DEFINE\_USER\_EXPORTED\_OBJARRAY}{wxdefineobjarray}
 
 \helpref{WX\_DEFINE\_EXPORTED\_OBJARRAY}{wxdefineobjarray}\\
 \helpref{WX\_DEFINE\_USER\_EXPORTED\_OBJARRAY}{wxdefineobjarray}
 

-\membersection{Constructors and destructors}
+To slightly complicate the matters even further, the operator $->$ defined by
+default for the array iterators by these macros only makes sense if the array
+element type is not a pointer itself and, although it still works, this
+provokes warnings from some compilers and to avoid them you should use the 
+{\tt \_PTR} versions of the macros above. For example, to define an array of
+pointers to {\tt double} you should use.
+
+Note that the above macros are generally only useful for 
+wxObject types.  There are seperate macros for declaring an array of a simple type, 
+such as an int.
+
+The following simple types are supported:\\
+int\\
+long\\
+size\_t\\
+double
+
+To create an array of a simple type, simply append the type you want in CAPS to
+the array definition.
+
+For example, for an integer array, you'd use one of the following variants:
+
+\helpref{WX\_DEFINE\_ARRAY\_INT}{wxdefinearray}\\
+\helpref{WX\_DEFINE\_EXPORTED\_ARRAY\_INT}{wxdefinearray}\\
+\helpref{WX\_DEFINE\_USER\_EXPORTED\_ARRAY\_INT}{wxdefinearray}\\
+\helpref{WX\_DEFINE\_SORTED\_ARRAY\_INT}{wxdefinesortedarray}\\
+\helpref{WX\_DEFINE\_SORTED\_EXPORTED\_ARRAY\_INT}{wxdefinesortedarray}\\
+\helpref{WX\_DEFINE\_SORTED\_USER\_EXPORTED\_ARRAY\_INT}{wxdefinesortedarray}\\
+
+\begin{verbatim} 
+WX_DEFINE_ARRAY_PTR(double *, MyArrayOfDoublePointers);
+\end{verbatim}
+
+\membersection{Constructors and destructors}\label{arrayconstructorsdestructors}

 
 Array classes are 100\% C++ objects and as such they have the appropriate copy
 constructors and assignment operators. Copying wxArray just copies the elements
 
 Array classes are 100\% C++ objects and as such they have the appropriate copy
 constructors and assignment operators. Copying wxArray just copies the elements


@@ -177,7 +214,7 @@ amount, but no more than some maximal number which is defined by
 ARRAY\_MAXSIZE\_INCREMENT constant. Of course, this may lead to some memory
 being wasted (ARRAY\_MAXSIZE\_INCREMENT in the worst case, i.e. 4Kb in the
 current implementation), so the \helpref{Shrink()}{wxarrayshrink} function is
 ARRAY\_MAXSIZE\_INCREMENT constant. Of course, this may lead to some memory
 being wasted (ARRAY\_MAXSIZE\_INCREMENT in the worst case, i.e. 4Kb in the
 current implementation), so the \helpref{Shrink()}{wxarrayshrink} function is

-provided to unallocate the extra memory. The \helpref{Alloc()}{wxarrayalloc} 
+provided to deallocate the extra memory. The \helpref{Alloc()}{wxarrayalloc} 

 function can also be quite useful if you know in advance how many items you are
 going to put in the array and will prevent the array code from reallocating the
 memory more times than needed.
 function can also be quite useful if you know in advance how many items you are
 going to put in the array and will prevent the array code from reallocating the
 memory more times than needed.


@@ -185,7 +222,7 @@ memory more times than needed.
 \helpref{Alloc}{wxarrayalloc}\\
 \helpref{Shrink}{wxarrayshrink}
 
 \helpref{Alloc}{wxarrayalloc}\\
 \helpref{Shrink}{wxarrayshrink}
 

-\membersection{Number of elements and simple item access}
+\membersection{Number of elements and simple item access}\label{arrayelementsaccess}

 
 Functions in this section return the total number of array elements and allow to
 retrieve them - possibly using just the C array indexing $[]$ operator which
 
 Functions in this section return the total number of array elements and allow to
 retrieve them - possibly using just the C array indexing $[]$ operator which


@@ -197,13 +234,14 @@ does exactly the same as \helpref{Item()}{wxarrayitem} method.
 \helpref{Item}{wxarrayitem}\\
 \helpref{Last}{wxarraylast}
 
 \helpref{Item}{wxarrayitem}\\
 \helpref{Last}{wxarraylast}
 

-\membersection{Adding items}
+\membersection{Adding items}\label{arrayadding}

 
 \helpref{Add}{wxarrayadd}\\
 \helpref{Insert}{wxarrayinsert}\\
 
 \helpref{Add}{wxarrayadd}\\
 \helpref{Insert}{wxarrayinsert}\\

+\helpref{SetCount}{wxarraysetcount}\\

 \helpref{WX\_APPEND\_ARRAY}{wxappendarray}
 
 \helpref{WX\_APPEND\_ARRAY}{wxappendarray}
 

-\membersection{Removing items}
+\membersection{Removing items}\label{arrayremoving}

 
 \helpref{WX\_CLEAR\_ARRAY}{wxcleararray}\\
 \helpref{Empty}{wxarrayempty}\\
 
 \helpref{WX\_CLEAR\_ARRAY}{wxcleararray}\\
 \helpref{Empty}{wxarrayempty}\\


@@ -211,7 +249,7 @@ does exactly the same as \helpref{Item()}{wxarrayitem} method.
 \helpref{RemoveAt}{wxarrayremoveat}\\
 \helpref{Remove}{wxarrayremove}
 
 \helpref{RemoveAt}{wxarrayremoveat}\\
 \helpref{Remove}{wxarrayremove}
 

-\membersection{Searching and sorting}
+\membersection{Searching and sorting}\label{arraysearchingandsorting}

 
 \helpref{Index}{wxarrayindex}\\
 \helpref{Sort}{wxarraysort}
 
 \helpref{Index}{wxarrayindex}\\
 \helpref{Sort}{wxarraysort}


@@ -232,20 +270,20 @@ does exactly the same as \helpref{Item()}{wxarrayitem} method.
 \func{}{WX\_DEFINE\_USER\_EXPORTED\_ARRAY}{\param{}{T}, \param{}{name}, \param{}{exportspec}}
 
 This macro defines a new array class named {\it name} and containing the
 \func{}{WX\_DEFINE\_USER\_EXPORTED\_ARRAY}{\param{}{T}, \param{}{name}, \param{}{exportspec}}
 
 This macro defines a new array class named {\it name} and containing the

-elements of type {\it T}. The second form is used when compiling wxWindows as
+elements of type {\it T}. The second form is used when compiling wxWidgets as

 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 
 Example:
 
 \begin{verbatim}
 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 
 Example:
 
 \begin{verbatim}

-WX_DEFINE_ARRAY(int, wxArrayInt);
+WX_DEFINE_ARRAY_INT(wxArrayInt);

 
 class MyClass;
 WX_DEFINE_ARRAY(MyClass *, wxArrayOfMyClass);
 \end{verbatim}
 
 
 class MyClass;
 WX_DEFINE_ARRAY(MyClass *, wxArrayOfMyClass);
 \end{verbatim}
 

-Note that wxWindows predefines the following standard array classes: wxArrayInt,
+Note that wxWidgets predefines the following standard array classes: wxArrayInt,

 wxArrayLong and wxArrayPtrVoid.
 
 \membersection{WX\_DEFINE\_SORTED\_ARRAY}\label{wxdefinesortedarray}
 wxArrayLong and wxArrayPtrVoid.
 
 \membersection{WX\_DEFINE\_SORTED\_ARRAY}\label{wxdefinesortedarray}


@@ -257,14 +295,14 @@ wxArrayLong and wxArrayPtrVoid.
 \func{}{WX\_DEFINE\_SORTED\_USER\_EXPORTED\_ARRAY}{\param{}{T}, \param{}{name}}
 
 This macro defines a new sorted array class named {\it name} and containing
 \func{}{WX\_DEFINE\_SORTED\_USER\_EXPORTED\_ARRAY}{\param{}{T}, \param{}{name}}
 
 This macro defines a new sorted array class named {\it name} and containing

-the elements of type {\it T}. The second form is used when compiling wxWindows as
+the elements of type {\it T}. The second form is used when compiling wxWidgets as

 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 
 Example:
 
 \begin{verbatim}
 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 
 Example:
 
 \begin{verbatim}

-WX_DEFINE_SORTED_ARRAY(int, wxSortedArrayInt);
+WX_DEFINE_SORTED_ARRAY_INT(wxSortedArrayInt);

 
 class MyClass;
 WX_DEFINE_SORTED_ARRAY(MyClass *, wxArrayOfMyClass);
 
 class MyClass;
 WX_DEFINE_SORTED_ARRAY(MyClass *, wxArrayOfMyClass);


@@ -299,7 +337,7 @@ wxArrayOfMyClass another(CompareMyClassObjects);
 \func{}{WX\_DECLARE\_USER\_EXPORTED\_OBJARRAY}{\param{}{T}, \param{}{name}}
 
 This macro declares a new object array class named {\it name} and containing
 \func{}{WX\_DECLARE\_USER\_EXPORTED\_OBJARRAY}{\param{}{T}, \param{}{name}}
 
 This macro declares a new object array class named {\it name} and containing

-the elements of type {\it T}. The second form is used when compiling wxWindows as
+the elements of type {\it T}. The second form is used when compiling wxWidgets as

 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 
 a DLL under Windows and array needs to be visible outside the DLL.  The third is
 needed for exporting an array from a user DLL.
 


@@ -307,7 +345,7 @@ Example:
 
 \begin{verbatim}
 class MyClass;
 
 \begin{verbatim}
 class MyClass;

-WX_DEFINE_OBJARRAY(MyClass, wxArrayOfMyClass); // note: not "MyClass *"!
+WX_DECLARE_OBJARRAY(MyClass, wxArrayOfMyClass); // note: not "MyClass *"!

 \end{verbatim}
 
 You must use \helpref{WX\_DEFINE\_OBJARRAY()}{wxdefineobjarray} macro to define
 \end{verbatim}
 
 You must use \helpref{WX\_DEFINE\_OBJARRAY()}{wxdefineobjarray} macro to define


@@ -485,7 +523,7 @@ Return the number of items in the array.
 
 \membersection{wxArray::Index}\label{wxarrayindex}
 
 
 \membersection{wxArray::Index}\label{wxarrayindex}
 

-\func{int}{Index}{\param{T\& }{item}, \param{bool }{searchFromEnd = FALSE}}
+\func{int}{Index}{\param{T\& }{item}, \param{bool }{searchFromEnd = false}}

 
 \func{int}{Index}{\param{T\& }{item}}
 
 
 \func{int}{Index}{\param{T\& }{item}}
 


@@ -493,7 +531,7 @@ The first version of the function is for wxArray and wxObjArray, the second is
 for wxSortedArray only.
 
 Searches the element in the array, starting from either beginning or the end
 for wxSortedArray only.
 
 Searches the element in the array, starting from either beginning or the end

-depending on the value of {\it searchFromEnd} parameter. wxNOT\_FOUND is
+depending on the value of {\it searchFromEnd} parameter. {\tt wxNOT\_FOUND} is

 returned if the element is not found, otherwise the index of the element is
 returned.
 
 returned if the element is not found, otherwise the index of the element is
 returned.
 


@@ -526,7 +564,7 @@ between the overloaded versions of this function.
 
 \constfunc{bool}{IsEmpty}{\void}
 
 
 \constfunc{bool}{IsEmpty}{\void}
 

-Returns TRUE if the array is empty, FALSE otherwise.
+Returns true if the array is empty, false otherwise.

 
 \membersection{wxArray::Item}\label{wxarrayitem}
 
 
 \membersection{wxArray::Item}\label{wxarrayitem}
 


@@ -573,7 +611,7 @@ elements of a wxArray (supposed to contain pointers).
 
 \membersection{wxArray::RemoveAt}\label{wxarrayremoveat}
 
 
 \membersection{wxArray::RemoveAt}\label{wxarrayremoveat}
 

-\func{\void}{RemoveAt}{\param{size\_t }{index}, \param{size\_t }{count = $1$}
+\func{\void}{RemoveAt}{\param{size\_t }{index}, \param{size\_t }{count = $1$}}

 
 Removes {\it count} elements starting at {\it index} from the array. When an
 element is removed from wxObjArray it is deleted by the array - use
 
 Removes {\it count} elements starting at {\it index} from the array. When an
 element is removed from wxObjArray it is deleted by the array - use


@@ -590,6 +628,19 @@ array.RemoveAt(n)
 See also \helpref{WX\_CLEAR\_ARRAY}{wxcleararray} macro which deletes all
 elements of a wxArray (supposed to contain pointers).
 
 See also \helpref{WX\_CLEAR\_ARRAY}{wxcleararray} macro which deletes all
 elements of a wxArray (supposed to contain pointers).
 

+\membersection{wxArray::SetCount}\label{wxarraysetcount}
+
+\func{void}{SetCount}{\param{size\_t }{count}, \param{T }{defval = T($0$)}}
+
+This function ensures that the number of array elements is at least 
+{\it count}. If the array has already {\it count} or more items, nothing is
+done. Otherwise, {\tt count - GetCount()} elements are added and initialized to
+the value {\it defval}.
+
+\wxheading{See also}
+
+\helpref{GetCount}{wxarraygetcount}
+

 \membersection{wxArray::Shrink}\label{wxarrayshrink}
 
 \func{void}{Shrink}{\void}
 \membersection{wxArray::Shrink}\label{wxarrayshrink}
 
 \func{void}{Shrink}{\void}