Added wxHelpControllerHelpProvider, added DisplayContextPopup, DisplayTextPopup

to wxHelpControllerBase and wxCHMHelpController; updated sample


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8339 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/helpbase.h

@@ -47,9 +47,19 @@ public:
     
     // If file is "", reloads file given  in Initialize
     virtual bool LoadFile(const wxString& file = "") = 0;
+
+    // Displays the contents
     virtual bool DisplayContents(void) = 0;
+
+    // Display the given section
     virtual bool DisplaySection(int sectionNo) = 0;
 
+    // Display the section using a context id
+    virtual bool DisplayContextPopup(int WXUNUSED(contextId)) { return FALSE; };
+
+    // Display the text in a popup, if possible
+    virtual bool DisplayTextPopup(const wxString& WXUNUSED(text), const wxPoint& WXUNUSED(pos)) { return FALSE; };
+
     // By default, uses KeywordSection to display a topic. Implementations
     // may override this for more specific behaviour.
     virtual bool DisplaySection(const wxString& section) { return KeywordSearch(section); };