include/wx/richtext/richtextxml.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/richtext/richeditxml.h
   3 // Purpose:     XML and HTML I/O for wxRichTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     2005-09-30
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_RICHTEXTXML_H_
  13 #define _WX_RICHTEXTXML_H_
  14
  15 /*!
  16  * Includes
  17  */
  18
  19 #include "wx/richtext/richtextbuffer.h"
  20
  21 #if wxUSE_RICHTEXT
  22
  23 /*!
  24  * wxRichTextXMLHandler
  25  */
  26
  27 class WXDLLIMPEXP_XML wxXmlNode;
  28
  29 class WXDLLIMPEXP_ADV wxRichTextXMLHandler: public wxRichTextFileHandler
  30 {
  31     DECLARE_CLASS(wxRichTextXMLHandler)
  32 public:
  33     wxRichTextXMLHandler(const wxString& name = wxT("XML"), const wxString& ext = wxT("xml"), int type = wxRICHTEXT_TYPE_XML)
  34         : wxRichTextFileHandler(name, ext, type)
  35         { }
  36
  37 #if wxUSE_STREAMS
  38     virtual bool DoLoadFile(wxRichTextBuffer *buffer, wxInputStream& stream);
  39     virtual bool DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream);
  40
  41     /// Recursively export an object
  42     bool ExportXML(wxOutputStream& stream, wxMBConv* convMem, wxMBConv* convFile, wxRichTextObject& obj, int level);
  43
  44     /// Recursively import an object
  45     bool ImportXML(wxRichTextBuffer* buffer, wxXmlNode* node);
  46
  47     /// Create style parameters
  48     wxString CreateStyle(const wxTextAttrEx& attr, bool isPara = false);
  49
  50     /// Get style parameters
  51     bool GetStyle(wxTextAttrEx& attr, wxXmlNode* node, bool isPara = false);
  52 #endif
  53
  54     /// Can we save using this handler?
  55     virtual bool CanSave() const { return true; }
  56
  57     /// Can we load using this handler?
  58     virtual bool CanLoad() const { return true; }
  59
  60 // Implementation
  61
  62     bool HasParam(wxXmlNode* node, const wxString& param);
  63     wxXmlNode *GetParamNode(wxXmlNode* node, const wxString& param);
  64     wxString GetNodeContent(wxXmlNode *node);
  65     wxString GetParamValue(wxXmlNode *node, const wxString& param);
  66     wxString GetText(wxXmlNode *node, const wxString& param = wxEmptyString, bool translate = false);
  67
  68 protected:
  69
  70 };
  71
  72 /*!
  73  * wxRichTextHTMLHandler
  74  */
  75
  76 class WXDLLIMPEXP_ADV wxRichTextHTMLHandler: public wxRichTextFileHandler
  77 {
  78     DECLARE_CLASS(wxRichTextHTMLHandler)
  79 public:
  80     wxRichTextHTMLHandler(const wxString& name = wxT("HTML"), const wxString& ext = wxT("html"), int type = wxRICHTEXT_TYPE_HTML)
  81         : wxRichTextFileHandler(name, ext, type)
  82         { }
  83
  84 #if wxUSE_STREAMS
  85     virtual bool DoLoadFile(wxRichTextBuffer *buffer, wxInputStream& stream);
  86     virtual bool DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream);
  87 #endif
  88
  89     /// Can we save using this handler?
  90     virtual bool CanSave() const { return true; }
  91
  92     /// Can we load using this handler?
  93     virtual bool CanLoad() const { return false; }
  94
  95     /// Can we handle this filename (if using files)? By default, checks the extension.
  96     virtual bool CanHandle(const wxString& filename) const;
  97
  98     /// Output character formatting
  99     virtual void OutputCharacterFormatting(const wxTextAttrEx& currentStyle, const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start);
 100
 101     /// Output paragraph formatting
 102     virtual void OutputParagraphFormatting(const wxTextAttrEx& currentStyle, const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start);
 103
 104 protected:
 105
 106 };
 107
 108 #endif
 109     // wxUSE_RICHTEXT
 110
 111 #endif
 112     // _WX_RICHTEXTXML_H_