Separated XML and HTML rich text I/O handlers

Cleaned up XML I/O
Added HTML handler to build system
Added encoding member for saving files output


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36427 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/richtext/richtexthtml.h

@@ -0,0 +1,58 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/richtext/richedithtml.h
+// Purpose:     HTML I/O for wxRichTextCtrl
+// Author:      Julian Smart
+// Modified by:
+// Created:     2005-09-30
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_RICHTEXTHTML_H_
+#define _WX_RICHTEXTHTML_H_
+
+/*!
+ * Includes
+ */
+
+#include "wx/richtext/richtextbuffer.h"
+
+/*!
+ * wxRichTextHTMLHandler
+ */
+
+class WXDLLIMPEXP_ADV wxRichTextHTMLHandler: public wxRichTextFileHandler
+{
+    DECLARE_CLASS(wxRichTextHTMLHandler)
+public:
+    wxRichTextHTMLHandler(const wxString& name = wxT("HTML"), const wxString& ext = wxT("html"), int type = wxRICHTEXT_TYPE_HTML)
+        : wxRichTextFileHandler(name, ext, type)
+        { }
+
+#if wxUSE_STREAMS
+    virtual bool DoLoadFile(wxRichTextBuffer *buffer, wxInputStream& stream);
+    virtual bool DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream);
+#endif
+
+    /// Can we save using this handler?
+    virtual bool CanSave() const { return true; }
+
+    /// Can we load using this handler?
+    virtual bool CanLoad() const { return false; }
+
+    /// Can we handle this filename (if using files)? By default, checks the extension.
+    virtual bool CanHandle(const wxString& filename) const;
+
+    /// Output character formatting
+    virtual void OutputCharacterFormatting(const wxTextAttrEx& currentStyle, const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start);
+
+    /// Output paragraph formatting
+    virtual void OutputParagraphFormatting(const wxTextAttrEx& currentStyle, const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start);
+
+protected:
+
+};
+
+#endif
+    // _WX_RICHTEXTXML_H_