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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: richtext/richtextxml.h | |
3 | // Purpose: interface of wxRichTextXMLHandler | |
4 | // Author: wxWidgets team | |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows licence | |
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 | Recursively exports an object to the stream. | |
54 | */ | |
55 | bool ExportXML(wxOutputStream& stream, wxRichTextObject& obj, int level); | |
56 | ||
57 | /** | |
58 | Helper function: gets node context. | |
59 | */ | |
60 | wxString GetNodeContent(wxXmlNode* node); | |
61 | ||
62 | /** | |
63 | Helper function: gets a named parameter from the XML node. | |
64 | */ | |
65 | wxXmlNode* GetParamNode(wxXmlNode* node, const wxString& param); | |
66 | ||
67 | /** | |
68 | Helper function: gets a named parameter from the XML node. | |
69 | */ | |
70 | wxString GetParamValue(wxXmlNode* node, const wxString& param); | |
71 | ||
72 | /** | |
73 | Helper function: gets text from the node. | |
74 | */ | |
75 | wxString GetText(wxXmlNode* node, | |
76 | const wxString& param = wxEmptyString, | |
77 | bool translate = false); | |
78 | ||
79 | /** | |
80 | Helper function: returns @true if the node has the given parameter. | |
81 | */ | |
82 | bool HasParam(wxXmlNode* node, const wxString& param); | |
83 | ||
84 | /** | |
85 | Recursively imports an object. | |
86 | */ | |
87 | bool ImportXML(wxRichTextBuffer* buffer, wxRichTextObject* obj, wxXmlNode* node); | |
88 | ||
89 | /** | |
90 | Call with XML node name, C++ class name so that wxRTC can read in the node. | |
91 | If you add a custom object, call this. | |
92 | */ | |
93 | static void RegisterNodeName(const wxString& nodeName, const wxString& className) { sm_nodeNameToClassMap[nodeName] = className; } | |
94 | ||
95 | /** | |
96 | Cleans up the mapping between node name and C++ class. | |
97 | */ | |
98 | static void ClearNodeToClassMap() { sm_nodeNameToClassMap.clear(); } | |
99 | ||
100 | protected: | |
101 | ||
102 | /** | |
103 | Loads buffer context from the given stream. | |
104 | */ | |
105 | virtual bool DoLoadFile(wxRichTextBuffer* buffer, wxInputStream& stream); | |
106 | ||
107 | /** | |
108 | Saves buffer context to the given stream. | |
109 | */ | |
110 | virtual bool DoSaveFile(wxRichTextBuffer* buffer, wxOutputStream& stream); | |
111 | }; | |
112 |