1) some cleanup in wxHtmlWindow, moved private structures out of headers

2) added wxHtmlProcessor


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9978 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/html/htmlproc.h

@@ -0,0 +1,56 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        htmlprep.h
+// Purpose:     HTML processor
+// Author:      Vaclav Slavik
+// RCS-ID:      $Id$
+// Copyright:   (c) 2001 Vaclav Slavik
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+
+#ifndef _WX_HTMLPREP_H_
+#define _WX_HTMLPREP_H_
+
+#ifdef __GNUG__
+#pragma interface "htmlprep.h"
+// (implementation is in htmlwin.cpp, there's no htmlprep.cpp!)
+#endif
+
+#include "wx/defs.h"
+
+#if wxUSE_HTML
+
+#include "wx/string.h"
+
+// Priority of preprocessor in the chain. The higher, the earlier it is used
+enum
+{
+    wxHTML_PRIORITY_DONTCARE = 128, // if the order doesn't matter, use this
+                                    // priority
+    wxHTML_PRIORITY_SYSTEM   = 256  // >=256 is only for wxHTML's internals
+};
+
+// Classes derived from this class serve as simple text processors for 
+// wxHtmlWindow. wxHtmlWindow runs HTML markup through all registered
+// processors before displaying it, thus allowing for on-the-fly
+// modifications of the markup.
+
+class WXDLLEXPORT wxHtmlProcessor : public wxObject
+{
+    DECLARE_ABSTRACT_CLASS(wxHtmlProcessor)
+
+public:
+    wxHtmlProcessor() : wxObject() {}
+    virtual ~wxHtmlProcessor() {}
+
+    // Process input text and return processed result
+    virtual wxString Process(const wxString& text) const = 0;
+
+    // Return priority value of this processor. The higher, the sooner
+    // is the processor applied to the text.
+    virtual int GetPriority() const { return wxHTML_PRIORITY_DONTCARE; }
+};
+
+#endif // wxUSE_HTML
+
+#endif // _WX_HTMLPROC_H_