| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: objstrm.h |
| 3 | // Purpose: wxObjectStream classes |
| 4 | // Author: Guilhem Lavaux |
| 5 | // Modified by: |
| 6 | // Created: 16/07/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1998 Guilhem Lavaux |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | #ifndef _WX_WXOBJSTRM_H__ |
| 12 | #define _WX_WXOBJSTRM_H__ |
| 13 | |
| 14 | #ifdef __GNUG__ |
| 15 | #pragma interface |
| 16 | #endif |
| 17 | |
| 18 | #include "wx/defs.h" |
| 19 | |
| 20 | #if wxUSE_STREAMS && wxUSE_SERIAL |
| 21 | |
| 22 | #include "wx/object.h" |
| 23 | #include "wx/string.h" |
| 24 | #include "wx/stream.h" |
| 25 | |
| 26 | class wxObjectStreamInfo : public wxObject { |
| 27 | public: |
| 28 | wxString object_name; |
| 29 | int n_children, children_removed; |
| 30 | wxList children; |
| 31 | wxObjectStreamInfo *parent; |
| 32 | wxObject *object; |
| 33 | bool duplicate, recall; |
| 34 | }; |
| 35 | |
| 36 | class wxObjectOutputStream : public wxFilterOutputStream { |
| 37 | public: |
| 38 | wxObjectOutputStream(wxOutputStream& s); |
| 39 | |
| 40 | void AddChild(wxObject *obj); |
| 41 | bool SaveObject(wxObject& obj); |
| 42 | |
| 43 | bool FirstStage() const { return m_stage == 0; } |
| 44 | |
| 45 | wxString GetObjectName(wxObject *obj); |
| 46 | |
| 47 | protected: |
| 48 | void WriteObjectDef(wxObjectStreamInfo& info); |
| 49 | void ProcessObjectDef(wxObjectStreamInfo *info); |
| 50 | void ProcessObjectData(wxObjectStreamInfo *info); |
| 51 | |
| 52 | protected: |
| 53 | int m_stage; |
| 54 | bool m_saving; |
| 55 | wxObjectStreamInfo *m_current_info; |
| 56 | wxList m_saved_objs; |
| 57 | }; |
| 58 | |
| 59 | class wxObjectInputStream : public wxFilterInputStream { |
| 60 | public: |
| 61 | wxObjectInputStream(wxInputStream& s); |
| 62 | |
| 63 | bool SecondCall() const { return m_secondcall; } |
| 64 | void Recall(bool on = TRUE) { m_current_info->recall = on; } |
| 65 | |
| 66 | wxObject *GetChild(int no) const; |
| 67 | wxObject *GetChild(); |
| 68 | int NumberOfChildren() const { return m_current_info->n_children; } |
| 69 | void RemoveChildren(int nb); |
| 70 | wxObject *GetParent() const; |
| 71 | wxObject *LoadObject(); |
| 72 | |
| 73 | wxObject *SolveName(const wxString& objName) const; |
| 74 | |
| 75 | protected: |
| 76 | bool ReadObjectDef(wxObjectStreamInfo *info); |
| 77 | wxObjectStreamInfo *ProcessObjectDef(wxObjectStreamInfo *info); |
| 78 | void ProcessObjectData(wxObjectStreamInfo *info); |
| 79 | |
| 80 | protected: |
| 81 | bool m_secondcall; |
| 82 | wxObjectStreamInfo *m_current_info; |
| 83 | wxList m_solver; |
| 84 | }; |
| 85 | |
| 86 | #endif |
| 87 | // wxUSE_STREAMS && wxUSE_SERIAL |
| 88 | |
| 89 | #endif |
| 90 | // _WX_WXOBJSTRM_H__ |