Added wxDataViewTreeCtrl

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

diff --git a/docs/latex/wx/variant.tex b/docs/latex/wx/variant.tex
index 78cfe5bb350652b9e73b36d0f6c6f49c0ea10c0b..5ede86d94052371f172fc756e6807d7ee66396df 100644 (file)
--- a/docs/latex/wx/variant.tex
+++ b/docs/latex/wx/variant.tex
@@ -44,15 +44,15 @@ cannot be declared outside the class, the shift left operators are used like thi
 \begin{verbatim}
     // in the header file
     DECLARE_VARIANT_OBJECT(MyClass)
-    
+
     // in the implementation file
-    IMPLMENT_VARIANT_OBJECT(MyClass)
-    
+    IMPLEMENT_VARIANT_OBJECT(MyClass)
+
     // in the user code
     wxVariant variant;
     MyClass value;
     variant << value;
-    
+
     // or
     value << variant;
 \end{verbatim}
@@ -65,10 +65,6 @@ can be most easily implemented using the reference counting support offered by
 \helpref{wxObject}{wxobject} itself. By default, wxWidgets already implements
 the shift operator conversion for a few of its drawing related classes:
 
-Note that as of wxWidgets 2.9.0, wxVariantData no longer inherits from wxObject
-and wxVariant no longer uses the type-unsafe wxList class for list
-operations but the type-safe wxVariantList class.
-
 \begin{verbatim}
 IMPLEMENT_VARIANT_OBJECT(wxColour)
 IMPLEMENT_VARIANT_OBJECT(wxImage)
@@ -76,6 +72,17 @@ IMPLEMENT_VARIANT_OBJECT(wxIcon)
 IMPLEMENT_VARIANT_OBJECT(wxBitmap)
 \end{verbatim}
 
+Note that as of wxWidgets 2.9.0, wxVariantData no longer inherits from wxObject
+and wxVariant no longer uses the type-unsafe wxList class for list
+operations but the type-safe wxVariantList class. Also, wxVariantData now
+supports the Clone function for implementing the \helpref{wxVariant::Unshare}{wxvariantunshare} function.
+Clone is implemented automatically by IMPLEMENT\_VARIANT\_OBJECT.
+
+Since wxVariantData no longer derives from wxObject, any code that tests the type
+of the data using wxDynamicCast will require adjustment. You can use the macro
+wxDynamicCastVariantData with the same arguments as wxDynamicCast, to use C++ RTTI
+type information instead of wxWidgets RTTI.
+
 \wxheading{Derived from}
 
 \helpref{wxObject}{wxobject}
@@ -155,15 +162,15 @@ Construction from an array of strings.  This constructor copies {\it value} and
 
 \func{}{wxVariant}{\param{DATE\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
 
-Construction from a odbc date value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
+Construction from a ODBC date value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
 
 \func{}{wxVariant}{\param{TIME\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
 
-Construction from a odbc time value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
+Construction from a ODBC time value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
 
 \func{}{wxVariant}{\param{TIMESTAMP\_STRUCT*}{ val}, \param{const wxString\& }{name = ``"}}
 
-Construction from a odbc timestamp value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
+Construction from a ODBC timestamp value.  Represented internally by a \helpref{wxDateTime}{wxdatetime} value.
 
 \membersection{wxVariant::\destruct{wxVariant}}\label{wxvariantdtor}
 
@@ -293,7 +300,7 @@ Gets the string value.
 
 \constfunc{wxString}{GetType}{\void}
 
-Returns the value type as a string. The built-in types are: bool, char, date, double, list, long, string, stringlist, time, void*.
+Returns the value type as a string. The built-in types are: bool, char, datetime, double, list, long, string, arrstring, void*.
 
 If the variant is null, the value type returned is the string ``null" (not the empty string).
 
@@ -364,6 +371,15 @@ is of type list, but the number of elements in the list is zero.
 
 Sets the internal variant data, deleting the existing data if there is any.
 
+\membersection{wxVariant::Unshare}\label{wxvariantunshare}
+
+\func{bool}{Unshare}{\void}
+
+Makes sure that any data associated with this variant is not shared with other
+variants. For this to work, \helpref{wxVariantData::Clone}{wxvariantdataclone} must
+be implemented for the data types you are working with. Clone is implemented
+for all the default data types.
+
 \membersection{wxVariant::operator $=$}\label{wxvariantassignment}
 
 \func{void}{operator $=$}{\param{const wxVariant\& }{value}}
@@ -524,6 +540,10 @@ when the reference count reaches zero.
 
 <wx/variant.h>
 
+\wxheading{Derived from}
+
+No base class
+
 \wxheading{Library}
 
 \helpref{wxBase}{librarieslist}
@@ -540,6 +560,14 @@ when the reference count reaches zero.
 
 Default constructor.
 
+\membersection{wxVariantData::Clone}\label{wxvariantdataclone}
+
+\constfunc{wxVariantData*}{Clone}{\void}
+
+This function can be overridden to clone the data.
+Implement Clone if you wish \helpref{wxVariant::Unshare}{wxvariantunshare} to work
+for your data. This function is implemented for all built-in data types.
+
 \membersection{wxVariantData::DecRef}\label{wxvariantdatadecref}
 
 \func{void}{DecRef}{\void}
@@ -551,7 +579,6 @@ Note that destructor of wxVariantData is protected, so delete
 cannot be used as normal. Instead, \helpref{DecRef}{wxvariantdatadecref} should be called.
 
 
-
 \membersection{wxVariantData::Eq}\label{wxvariantdataeq}
 
 \constfunc{bool}{Eq}{\param{wxVariantData\&}{ data}}