Add wxDataViewTextRenderer::EnableMarkup()

Implement the new method to all the implementations (generic, GTK, OS X), show
it in the sample and update the documentation.

include/wx/generic/dvrenderers.h

@@ -53,6 +53,11 @@ public:
     wxDataViewTextRenderer( const wxString &varianttype = GetDefaultType(),
                             wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
                             int align = wxDVR_DEFAULT_ALIGNMENT );
+    virtual ~wxDataViewTextRenderer();
+
+#if wxUSE_MARKUP
+    void EnableMarkup(bool enable = true);
+#endif // wxUSE_MARKUP
 
     virtual bool SetValue( const wxVariant &value );
     virtual bool GetValue( wxVariant &value ) const;
@@ -69,7 +74,11 @@ public:
 protected:
     wxString   m_text;
 
-protected:
+private:
+#if wxUSE_MARKUP
+    class wxMarkupText *m_markupText;
+#endif // wxUSE_MARKUP
+
     wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer);
 };
 

include/wx/gtk/dvrenderers.h

@@ -31,6 +31,10 @@ public:
                             wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
                             int align = wxDVR_DEFAULT_ALIGNMENT );
 
+#if wxUSE_MARKUP
+    void EnableMarkup(bool enable = true);
+#endif // wxUSE_MARKUP
+
     virtual bool SetValue( const wxVariant &value ) wxOVERRIDE
     {
         return SetTextValue(value);
@@ -58,6 +62,14 @@ protected:
     bool SetTextValue(const wxString& str);
     bool GetTextValue(wxString& str) const;
 
+    // Return the name of the GtkCellRendererText property to use: "text" or
+    // "markup".
+    const char* GetTextPropertyName() const;
+
+#if wxUSE_MARKUP
+    // True if we should interpret markup in our text.
+    bool m_useMarkup;
+#endif // wxUSE_MARKUP
 
     wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer);
 };

include/wx/osx/dvrenderers.h

@@ -55,6 +55,10 @@ public:
                            wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
                            int align = wxDVR_DEFAULT_ALIGNMENT);
 
+#if wxUSE_MARKUP && wxOSX_USE_COCOA
+    void EnableMarkup(bool enable = true);
+#endif // wxUSE_MARKUP && Cocoa
+
     virtual bool MacRender();
 
     virtual void OSXOnCellChanged(NSObject *value,
@@ -62,6 +66,11 @@ public:
                                   unsigned col);
 
 private:
+#if wxUSE_MARKUP && wxOSX_USE_COCOA
+    // True if we should interpret markup in our text.
+    bool m_useMarkup;
+#endif // wxUSE_MARKUP && Cocoa
+
     wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer);
 };