243 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
	
	
			
		
		
	
	
			243 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
	
	
| /////////////////////////////////////////////////////////////////////////////
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| // Name:        wx/richtext/richtextxml.h
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| // Purpose:     XML and HTML I/O for wxRichTextCtrl
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| // Author:      Julian Smart
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| // Modified by:
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| // Created:     2005-09-30
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| // Copyright:   (c) Julian Smart
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| // Licence:     wxWindows licence
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| /////////////////////////////////////////////////////////////////////////////
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| 
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| #ifndef _WX_RICHTEXTXML_H_
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| #define _WX_RICHTEXTXML_H_
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| 
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| /*!
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|  * Includes
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|  */
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| 
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| #include "wx/hashmap.h"
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| #include "wx/richtext/richtextbuffer.h"
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| #include "wx/richtext/richtextstyles.h"
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| 
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| #if wxUSE_RICHTEXT && wxUSE_XML
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| 
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| /*!
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|     @class wxRichTextXMLHelper
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|     A utility class to help with XML import/export, that can be used outside
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|     saving a buffer if needed.
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|  */
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| 
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| class WXDLLIMPEXP_RICHTEXT wxRichTextXMLHelper: public wxObject
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| {
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| public:
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|     wxRichTextXMLHelper() { Init(); }
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|     wxRichTextXMLHelper(const wxString& enc) { Init(); SetupForSaving(enc); }
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|     ~wxRichTextXMLHelper();
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| 
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|     void Init();
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| 
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|     void SetupForSaving(const wxString& enc);
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| 
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|     void Clear();
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| 
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|     void SetFileEncoding(const wxString& encoding) { m_fileEncoding = encoding; }
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|     const wxString& GetFileEncoding() const { return m_fileEncoding; }
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| 
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|     // Convert a colour to a 6-digit hex string
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|     static wxString ColourToHexString(const wxColour& col);
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| 
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|     // Convert 6-digit hex string to a colour
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|     static wxColour HexStringToColour(const wxString& hex);
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| 
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|     static wxString MakeString(const int& v) { return wxString::Format(wxT("%d"), v); }
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|     static wxString MakeString(const long& v) { return wxString::Format(wxT("%ld"), v); }
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|     static wxString MakeString(const double& v) { return wxString::Format(wxT("%.2f"), (float) v); }
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|     static wxString MakeString(const wxString& s) { return s; }
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|     static wxString MakeString(const wxColour& col) { return wxT("#") + ColourToHexString(col); }
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| 
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|     static bool HasParam(wxXmlNode* node, const wxString& param);
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|     static wxXmlNode *GetParamNode(wxXmlNode* node, const wxString& param);
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|     static wxString GetNodeContent(wxXmlNode *node);
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|     static wxString GetParamValue(wxXmlNode *node, const wxString& param);
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|     static wxString GetText(wxXmlNode *node, const wxString& param = wxEmptyString);
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|     static wxXmlNode* FindNode(wxXmlNode* node, const wxString& name);
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| 
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|     static wxString AttributeToXML(const wxString& str);
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| 
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|     static bool RichTextFixFaceName(wxString& facename);
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|     static long ColourStringToLong(const wxString& colStr);
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|     static wxTextAttrDimension ParseDimension(const wxString& dimStr);
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| 
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|     // Make a string from the given property. This can be overridden for custom variants.
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|     virtual wxString MakeStringFromProperty(const wxVariant& var);
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| 
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|     // Create a proprty from the string read from the XML file.
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|     virtual wxVariant MakePropertyFromString(const wxString& name, const wxString& value, const wxString& type);
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| 
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|     // Import properties
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|     virtual bool ImportProperties(wxRichTextProperties& properties, wxXmlNode* node);
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| 
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|     virtual bool ImportStyle(wxRichTextAttr& attr, wxXmlNode* node, bool isPara = false);
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|     virtual bool ImportStyleDefinition(wxRichTextStyleSheet* sheet, wxXmlNode* node);
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| 
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|     // Get flags, as per handler flags
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|     int GetFlags() const { return m_flags; }
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|     void SetFlags(int flags) { m_flags = flags; }
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| 
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| #if wxRICHTEXT_HAVE_DIRECT_OUTPUT
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|     // write string to output
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|     static void OutputString(wxOutputStream& stream, const wxString& str,
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|                                 wxMBConv *convMem, wxMBConv *convFile);
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| 
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|     static void OutputIndentation(wxOutputStream& stream, int indent);
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| 
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|     // Same as above, but create entities first.
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|     // Translates '<' to "<", '>' to ">" and '&' to "&"
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|     static void OutputStringEnt(wxOutputStream& stream, const wxString& str,
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|                             wxMBConv *convMem, wxMBConv *convFile);
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| 
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|     void OutputString(wxOutputStream& stream, const wxString& str);
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|     void OutputStringEnt(wxOutputStream& stream, const wxString& str);
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|     
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|     static void AddString(wxString& str, const int& v) { str << wxString::Format(wxT("%d"), v); }
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|     static void AddString(wxString& str, const long& v) { str << wxString::Format(wxT("%ld"), v); }
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|     static void AddString(wxString& str, const double& v) { str << wxString::Format(wxT("%.2f"), (float) v); }
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|     static void AddString(wxString& str, const wxChar* s) { str << s; }
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|     static void AddString(wxString& str, const wxString& s) { str << s; }
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|     static void AddString(wxString& str, const wxColour& col) { str << wxT("#") << ColourToHexString(col); }
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| 
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|     static void AddAttribute(wxString& str, const wxString& name, const int& v);
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|     static void AddAttribute(wxString& str, const wxString& name, const long& v);
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|     static void AddAttribute(wxString& str, const wxString& name, const double& v);
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|     static void AddAttribute(wxString& str, const wxString& name, const wxChar* s);
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|     static void AddAttribute(wxString& str, const wxString& name, const wxString& s);
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|     static void AddAttribute(wxString& str, const wxString& name, const wxColour& col);
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|     static void AddAttribute(wxString& str, const wxString& name, const wxTextAttrDimension& dim);
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|     static void AddAttribute(wxString& str, const wxString& rootName, const wxTextAttrDimensions& dims);
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|     static void AddAttribute(wxString& str, const wxString& rootName, const wxTextAttrBorder& border);
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|     static void AddAttribute(wxString& str, const wxString& rootName, const wxTextAttrBorders& borders);
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| 
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|     /// Create a string containing style attributes
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|     static wxString AddAttributes(const wxRichTextAttr& attr, bool isPara = false);
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| 
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|     /// Create a string containing style attributes, plus further object 'attributes' (shown, id)
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|     static wxString AddAttributes(wxRichTextObject* obj, bool isPara = false);
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|     
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|     virtual bool ExportStyleDefinition(wxOutputStream& stream, wxRichTextStyleDefinition* def, int level);
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| 
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|     virtual bool WriteProperties(wxOutputStream& stream, const wxRichTextProperties& properties, int level);
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| #endif
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| 
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| #if wxRICHTEXT_HAVE_XMLDOCUMENT_OUTPUT
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const int& v);
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const long& v);
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const double& v);
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const wxString& s);
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const wxColour& col);
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|     static void AddAttribute(wxXmlNode* node, const wxString& name, const wxTextAttrDimension& dim);
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|     static void AddAttribute(wxXmlNode* node, const wxString& rootName, const wxTextAttrDimensions& dims);
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|     static void AddAttribute(wxXmlNode* node, const wxString& rootName, const wxTextAttrBorder& border);
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|     static void AddAttribute(wxXmlNode* node, const wxString& rootName, const wxTextAttrBorders& borders);
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| 
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|     static bool AddAttributes(wxXmlNode* node, wxRichTextAttr& attr, bool isPara = false);
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|     static bool AddAttributes(wxXmlNode* node, wxRichTextObject* obj, bool isPara = false);
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| 
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|     virtual bool ExportStyleDefinition(wxXmlNode* parent, wxRichTextStyleDefinition* def);
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| 
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|     // Write the properties
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|     virtual bool WriteProperties(wxXmlNode* node, const wxRichTextProperties& properties);
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| #endif
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| 
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| public:
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| 
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| #if wxRICHTEXT_HAVE_DIRECT_OUTPUT
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|     // Used during saving
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|     wxMBConv*   m_convMem;
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|     wxMBConv*   m_convFile;
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|     bool        m_deleteConvFile;
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| #endif
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| 
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|     wxString    m_fileEncoding;
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|     int         m_flags;
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| };
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| 
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| /*!
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|     @class wxRichTextXMLHandler
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| 
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|     Implements XML loading and saving. Two methods of saving are included:
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|     writing directly to a text stream, and populating an wxXmlDocument
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|     before writing it. The former method is considerably faster, so we favour
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|     that one, even though the code is a little less elegant.
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|  */
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| 
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| class WXDLLIMPEXP_FWD_XML wxXmlNode;
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| class WXDLLIMPEXP_FWD_XML wxXmlDocument;
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| 
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| class WXDLLIMPEXP_RICHTEXT wxRichTextXMLHandler: public wxRichTextFileHandler
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| {
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|     wxDECLARE_DYNAMIC_CLASS(wxRichTextXMLHandler);
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| public:
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|     wxRichTextXMLHandler(const wxString& name = wxT("XML"), const wxString& ext = wxT("xml"), int type = wxRICHTEXT_TYPE_XML)
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|         : wxRichTextFileHandler(name, ext, type)
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|         { Init(); }
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| 
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|     void Init();
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| 
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| #if wxUSE_STREAMS
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| 
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| #if wxRICHTEXT_HAVE_DIRECT_OUTPUT
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|     /// Recursively export an object
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|     bool ExportXML(wxOutputStream& stream, wxRichTextObject& obj, int level);
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| #endif
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| 
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| #if wxRICHTEXT_HAVE_XMLDOCUMENT_OUTPUT
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|     bool ExportXML(wxXmlNode* parent, wxRichTextObject& obj);
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| #endif
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| 
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|     /// Recursively import an object
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|     bool ImportXML(wxRichTextBuffer* buffer, wxRichTextObject* obj, wxXmlNode* node);
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| #endif
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| 
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|     /// Creates an object given an XML element name
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|     virtual wxRichTextObject* CreateObjectForXMLName(wxRichTextObject* parent, const wxString& name) const;
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| 
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|     /// Can we save using this handler?
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|     virtual bool CanSave() const wxOVERRIDE { return true; }
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| 
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|     /// Can we load using this handler?
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|     virtual bool CanLoad() const wxOVERRIDE { return true; }
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| 
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|     /// Returns the XML helper object, implementing functionality
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|     /// that can be reused elsewhere.
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|     wxRichTextXMLHelper& GetHelper() { return m_helper; }
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| 
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| // Implementation
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| 
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|     /**
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|         Call with XML node name, C++ class name so that wxRTC can read in the node.
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|         If you add a custom object, call this.
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|     */
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|     static void RegisterNodeName(const wxString& nodeName, const wxString& className) { sm_nodeNameToClassMap[nodeName] = className; }
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| 
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|     /**
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|         Cleans up the mapping between node name and C++ class.
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|     */
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|     static void ClearNodeToClassMap() { sm_nodeNameToClassMap.clear(); }
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| 
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| protected:
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| #if wxUSE_STREAMS
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|     virtual bool DoLoadFile(wxRichTextBuffer *buffer, wxInputStream& stream) wxOVERRIDE;
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|     virtual bool DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream) wxOVERRIDE;
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| #endif
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| 
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|     wxRichTextXMLHelper m_helper;
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| 
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|     static wxStringToStringHashMap sm_nodeNameToClassMap;
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| };
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| 
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| #endif
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|     // wxUSE_RICHTEXT && wxUSE_XML
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| 
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| #endif
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|     // _WX_RICHTEXTXML_H_
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