// Name: wx/xtistrm.h
// Purpose: streaming runtime metadata information (extended class info)
// Author: Stefan Csomor
-// Modified by:
+// Modified by:
// Created: 27/07/03
// RCS-ID: $Id$
// Copyright: (c) 2003 Stefan Csomor
#ifndef _WX_XTISTRMH__
#define _WX_XTISTRMH__
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "xtistrm.h"
-#endif
-
#include "wx/wx.h"
#if wxUSE_EXTENDED_RTTI
const int wxInvalidObjectID = -2 ;
-const int wxNullObjectID = -1 ;
+const int wxNullObjectID = -3 ;
// Filer contains the interfaces for streaming objects in and out of XML,
// rendering them either to objects in memory, or to code. Note: We
// or modify the value before it is streamed-out.
// ----------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxWriter ;
-class WXDLLIMPEXP_BASE wxReader ;
+class WXDLLIMPEXP_FWD_BASE wxWriter ;
+class WXDLLIMPEXP_FWD_BASE wxReader ;
class WXDLLIMPEXP_BASE wxPersister
{
public :
+ virtual ~wxPersister() {}
+
// will be called before an object is written, may veto by returning false
- virtual bool BeforeWriteObject( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) , wxxVariantArray &WXUNUSED(metadata)) { return true ; }
+ virtual bool BeforeWriteObject( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) , wxxVariantArray &WXUNUSED(metadata)) { return true ; }
// will be called after this object has been written, may be needed for adjusting stacks
virtual void AfterWriteObject( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object) , const wxClassInfo *WXUNUSED(classInfo) ) {}
- // will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( -1 , -1 ) or veto
+ // will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( wxDefaultCoord , wxDefaultCoord ) or veto
// writing that property at all by returning false
- virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariant &WXUNUSED(value) ) { return true ; }
+ virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariant &WXUNUSED(value) ) { return true ; }
- // will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( -1 , -1 ) or veto
+ // will be called before a property gets written, may change the value , eg replace a concrete wxSize by wxSize( wxDefaultCoord , wxDefaultCoord ) or veto
// writing that property at all by returning false
- virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariantArray &WXUNUSED(value) ) { return true ; }
+ virtual bool BeforeWriteProperty( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxPropertyInfo *WXUNUSED(propInfo) , wxxVariantArray &WXUNUSED(value) ) { return true ; }
// will be called after a property has been written out, may be needed for adjusting stacks
virtual void AfterWriteProperty( wxWriter *WXUNUSED(writer) , const wxPropertyInfo *WXUNUSED(propInfo) ) {}
// will be called before this delegate gets written
- virtual bool BeforeWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
- const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { return true ; }
+ virtual bool BeforeWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
+ const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { return true ; }
- virtual void AfterWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
- const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { }
+ virtual void AfterWriteDelegate( wxWriter *WXUNUSED(writer) , const wxObject *WXUNUSED(object), const wxClassInfo* WXUNUSED(classInfo) , const wxPropertyInfo *WXUNUSED(propInfo) ,
+ const wxObject *&WXUNUSED(eventSink) , const wxHandlerInfo* &WXUNUSED(handlerInfo) ) { }
} ;
class WXDLLIMPEXP_BASE wxWriter : public wxObject
{
public :
wxWriter() ;
- ~wxWriter() ;
+ virtual ~wxWriter() ;
// with this call you start writing out a new top-level object
void WriteObject(const wxObject *object, const wxClassInfo *classInfo , wxPersister *persister , const wxString &name , wxxVariantArray &WXUNUSED(metadata)) ;
//
// Managing the object identity table a.k.a context
//
- // these methods make sure that no object gets written twice, because sometimes multiple calls to the WriteObject will be
+ // these methods make sure that no object gets written twice, because sometimes multiple calls to the WriteObject will be
// made without wanting to have duplicate objects written, the object identity table will be reset manually
virtual void ClearObjectContext() ;
virtual void DoBeginWriteElement() = 0 ;
virtual void DoEndWriteElement() = 0 ;
- // insert an object reference to an already written object
+ // insert an object reference to an already written object
virtual void DoWriteRepeatedObject( int objectID ) = 0 ;
// insert a null reference
virtual void DoWriteNullObject() = 0 ;
// writes a delegate in the stream format
- virtual void DoWriteDelegate( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo ,
+ virtual void DoWriteDelegate( const wxObject *object, const wxClassInfo* classInfo , const wxPropertyInfo *propInfo ,
const wxObject *eventSink , int sinkObjectID , const wxClassInfo* eventSinkClassInfo , const wxHandlerInfo* handlerIndo ) = 0;
private :
Streaming callbacks for depersisting XML to code, or running objects
*/
-class WXDLLIMPEXP_BASE wxDepersister ;
+class WXDLLIMPEXP_FWD_BASE wxDepersister ;
/*
wxReader handles streaming in a class from a arbitrary format. While walking through
{
public :
wxReader() ;
- ~wxReader() ;
+ virtual ~wxReader() ;
// the only thing wxReader knows about is the class info by object ID
wxClassInfo *GetObjectClassInfo(int objectID) ;
bool HasObjectClassInfo( int objectID ) ;
void SetObjectClassInfo(int objectID, wxClassInfo* classInfo);
- // Reads the component the reader is pointed at from the underlying format.
+ // Reads the component the reader is pointed at from the underlying format.
// The return value is the root object ID, which can
// then be used to ask the depersister about that object
+ // if there was a problem you will get back wxInvalidObjectID and the current
+ // error log will carry the problems encoutered
virtual int ReadObject( const wxString &name , wxDepersister *depersist ) = 0 ;
private :
class WXDLLIMPEXP_BASE wxDepersister
{
public :
+ virtual ~wxDepersister() {}
+
// allocate the new object on the heap, that object will have the passed in ID
virtual void AllocateObject(int objectID, wxClassInfo *classInfo, wxxVariantArray &metadata) = 0;
wxRuntimeDepersister();
virtual ~wxRuntimeDepersister();
- // returns the object having the corresponding ID fully constructed
+ // returns the object having the corresponding ID fully constructed
wxObject *GetObject(int objectID) ;
// allocate the new object on the heap, that object will have the passed in ID
/*
wxDepersisterCode implements the callbacks that will depersist
-an object into a C++ initialization function. this will move to
+an object into a C++ initialization function. this will move to
a utility lib soon
*/
-class WXDLLIMPEXP_BASE wxTextOutputStream ;
+class WXDLLIMPEXP_FWD_BASE wxTextOutputStream ;
class WXDLLIMPEXP_BASE wxCodeDepersister : public wxDepersister
{
projects / wxWidgets.git / blobdiff