| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: richtext/richtextxml.h |
| 3 | // Purpose: interface of wxRichTextXMLHandler |
| 4 | // Author: wxWidgets team |
| 5 | // RCS-ID: $Id$ |
| 6 | // Licence: wxWindows license |
| 7 | ///////////////////////////////////////////////////////////////////////////// |
| 8 | |
| 9 | /** |
| 10 | @class wxRichTextXMLHandler |
| 11 | |
| 12 | A handler for loading and saving content in an XML format specific |
| 13 | to wxRichTextBuffer. |
| 14 | |
| 15 | You can either add the handler to the buffer and load and save through |
| 16 | the buffer or control API, or you can create an instance of the handler |
| 17 | on the stack and call its functions directly. |
| 18 | |
| 19 | |
| 20 | @section richtextxmlhandler_flags Handler flags |
| 21 | |
| 22 | The following flags can be used with this handler, via the handler's SetFlags() |
| 23 | function or the buffer or control's SetHandlerFlags() function: |
| 24 | |
| 25 | - wxRICHTEXT_HANDLER_INCLUDE_STYLESHEET |
| 26 | Include the style sheet in loading and saving operations. |
| 27 | |
| 28 | |
| 29 | @library{wxrichtext} |
| 30 | @category{richtext} |
| 31 | */ |
| 32 | class wxRichTextXMLHandler : public wxRichTextFileHandler |
| 33 | { |
| 34 | public: |
| 35 | /** |
| 36 | Constructor. |
| 37 | */ |
| 38 | wxRichTextXMLHandler(const wxString& name = "XML", |
| 39 | const wxString& ext = "xml", |
| 40 | int type = wxRICHTEXT_TYPE_XML); |
| 41 | |
| 42 | /** |
| 43 | Returns @true. |
| 44 | */ |
| 45 | virtual bool CanLoad() const; |
| 46 | |
| 47 | /** |
| 48 | Returns @true. |
| 49 | */ |
| 50 | virtual bool CanSave() const; |
| 51 | |
| 52 | /** |
| 53 | Creates XML code for a given character or paragraph style. |
| 54 | */ |
| 55 | wxString CreateStyle(const wxTextAttr& attr, bool isPara = false); |
| 56 | |
| 57 | /** |
| 58 | Recursively exports an object to the stream. |
| 59 | */ |
| 60 | bool ExportXML(wxOutputStream& stream, wxMBConv* convMem, |
| 61 | wxMBConv* convFile, |
| 62 | wxRichTextObject& obj, |
| 63 | int level); |
| 64 | |
| 65 | /** |
| 66 | Helper function: gets node context. |
| 67 | */ |
| 68 | wxString GetNodeContent(wxXmlNode* node); |
| 69 | |
| 70 | /** |
| 71 | Helper function: gets a named parameter from the XML node. |
| 72 | */ |
| 73 | wxXmlNode* GetParamNode(wxXmlNode* node, const wxString& param); |
| 74 | |
| 75 | /** |
| 76 | Helper function: gets a named parameter from the XML node. |
| 77 | */ |
| 78 | wxString GetParamValue(wxXmlNode* node, const wxString& param); |
| 79 | |
| 80 | /** |
| 81 | Helper function: gets style parameters from the given XML node. |
| 82 | */ |
| 83 | bool GetStyle(wxTextAttr& attr, wxXmlNode* node, |
| 84 | bool isPara = false); |
| 85 | |
| 86 | /** |
| 87 | Helper function: gets text from the node. |
| 88 | */ |
| 89 | wxString GetText(wxXmlNode* node, |
| 90 | const wxString& param = wxEmptyString, |
| 91 | bool translate = false); |
| 92 | |
| 93 | /** |
| 94 | Helper function: returns @true if the node has the given parameter. |
| 95 | */ |
| 96 | bool HasParam(wxXmlNode* node, const wxString& param); |
| 97 | |
| 98 | /** |
| 99 | Recursively imports an object. |
| 100 | */ |
| 101 | bool ImportXML(wxRichTextBuffer* buffer, wxXmlNode* node); |
| 102 | |
| 103 | protected: |
| 104 | |
| 105 | /** |
| 106 | Loads buffer context from the given stream. |
| 107 | */ |
| 108 | virtual bool DoLoadFile(wxRichTextBuffer* buffer, wxInputStream& stream); |
| 109 | |
| 110 | /** |
| 111 | Saves buffer context to the given stream. |
| 112 | */ |
| 113 | virtual bool DoSaveFile(wxRichTextBuffer* buffer, wxOutputStream& stream); |
| 114 | }; |
| 115 | |