wxWidgets/samples/xti/codereadercallback.cpp

329 lines
11 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: src/common/xtistrm.cpp
// Purpose: streaming runtime metadata information
// Author: Stefan Csomor
// Modified by:
// Created: 27/07/03
// Copyright: (c) 2003 Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/xtistrm.h"
#ifndef WX_PRECOMP
#include "wx/object.h"
#include "wx/hash.h"
#include "wx/event.h"
#endif
#include <map>
#include <vector>
#include <string>
using namespace std;
#include "wx/tokenzr.h"
#include "wx/txtstrm.h"
#include "codereadercallback.h"
#if !wxUSE_EXTENDED_RTTI
#error This sample requires XTI (eXtended RTTI) enabled
#endif
// ----------------------------------------------------------------------------
// wxObjectCodeReaderCallback - depersisting to code
// ----------------------------------------------------------------------------
struct wxObjectCodeReaderCallback::wxObjectCodeReaderCallbackInternal
{
#if wxUSE_UNICODE
map<int,wstring> m_objectNames;
#else
map<int,string> m_objectNames;
#endif
void SetObjectName(int objectID, const wxString &name )
{
if ( m_objectNames.find(objectID) != m_objectNames.end() )
{
wxLogError( _("Passing an already registered object to SetObjectName") );
return ;
}
m_objectNames[objectID] = (const wxChar *)name;
}
wxString GetObjectName( int objectID )
{
if ( objectID == wxNullObjectID )
return "NULL";
if ( m_objectNames.find(objectID) == m_objectNames.end() )
{
wxLogError( _("Passing an unknown object to GetObject") );
return wxEmptyString;
}
return wxString( m_objectNames[objectID].c_str() );
}
};
wxObjectCodeReaderCallback::wxObjectCodeReaderCallback(wxString& headerincludes, wxString &source)
: m_headerincludes(headerincludes),m_source(source)
{
m_data = new wxObjectCodeReaderCallbackInternal;
}
wxObjectCodeReaderCallback::~wxObjectCodeReaderCallback()
{
delete m_data;
}
void wxObjectCodeReaderCallback::AllocateObject(int objectID, wxClassInfo *classInfo,
wxStringToAnyHashMap &WXUNUSED(metadata))
{
if ( classInfo->GetIncludeName() != wxEmptyString)
{
// add corresponding header if not already included
wxString include;
include.Printf("#include \"%s\"\n",classInfo->GetIncludeName());
if ( m_headerincludes.Find(include) == wxNOT_FOUND)
m_headerincludes += include;
}
wxString objectName = wxString::Format( "LocalObject_%d", objectID );
m_source += ( wxString::Format( "\t%s *%s = new %s;\n",
classInfo->GetClassName(),
objectName,
classInfo->GetClassName()) );
m_data->SetObjectName( objectID, objectName );
}
void wxObjectCodeReaderCallback::DestroyObject(int objectID, wxClassInfo *WXUNUSED(classInfo))
{
m_source += ( wxString::Format( "\tdelete %s;\n",
m_data->GetObjectName( objectID) ) );
}
class WXDLLIMPEXP_BASE wxObjectConstructorWriter: public wxObjectWriterFunctor
{
public:
wxObjectConstructorWriter(const wxClassTypeInfo* cti,
wxObjectCodeReaderCallback* writer) :
m_cti(cti),m_writer(writer)
{}
virtual void operator()(const wxObject *vobj)
{
const wxClassInfo* ci = m_cti->GetClassInfo();
for ( int i = 0; i < ci->GetCreateParamCount(); ++i )
{
wxString name = ci->GetCreateParamName(i);
const wxPropertyInfo* prop = ci->FindPropertyInfo(name);
if ( i > 0 )
m_constructor += ", ";
wxAny value;
prop->GetAccessor()->GetProperty(vobj, value);
m_constructor+= m_writer->ValueAsCode(value);
}
}
const wxString& GetConstructorString() const { return m_constructor;}
private:
const wxClassTypeInfo* m_cti;
wxObjectCodeReaderCallback* m_writer;
wxString m_constructor;
};
wxString wxObjectCodeReaderCallback::ValueAsCode( const wxAny &param )
{
wxString value;
const wxTypeInfo* type = param.GetTypeInfo();
if ( type->GetKind() == wxT_CUSTOM )
{
const wxCustomTypeInfo* cti = wx_dynamic_cast(const wxCustomTypeInfo*, type);
if ( cti )
{
value.Printf( "%s(%s)", cti->GetTypeName(),
wxAnyGetAsString(param) );
}
else
{
wxLogError ( "Internal error, illegal wxCustomTypeInfo" );
}
}
else if ( type->GetKind() == wxT_STRING )
{
value.Printf( "\"%s\"", wxAnyGetAsString(param) );
}
else if ( type->GetKind() == wxT_OBJECT )
{
const wxClassTypeInfo* ctype = wx_dynamic_cast(const wxClassTypeInfo*,type);
const wxClassInfo* ci = ctype->GetClassInfo();
if( ci->NeedsDirectConstruction())
{
wxObjectConstructorWriter cw(ctype,this);
ci->CallOnAny(param,&cw);
value.Printf( "%s(%s)", ctype->GetClassInfo()->GetClassName(),
cw.GetConstructorString() );
}
}
else
{
value.Printf( "%s", wxAnyGetAsString(param) );
}
return value;
}
void wxObjectCodeReaderCallback::CreateObject(int objectID,
const wxClassInfo *WXUNUSED(classInfo),
int paramCount,
wxAny *params,
int *objectIDValues,
const wxClassInfo **WXUNUSED(objectClassInfos),
wxStringToAnyHashMap &WXUNUSED(metadata)
)
{
int i;
m_source += ( wxString::Format( "\t%s->Create(",
m_data->GetObjectName(objectID) ) );
for (i = 0; i < paramCount; i++)
{
if ( objectIDValues[i] != wxInvalidObjectID )
{
wxString str =
wxString::Format( "%s",
m_data->GetObjectName( objectIDValues[i] ) );
m_source += ( str );
}
else
{
m_source += (
wxString::Format( "%s", ValueAsCode(params[i]) ) );
}
if (i < paramCount - 1)
m_source += ( ", ");
}
m_source += ( ");\n" );
}
void wxObjectCodeReaderCallback::ConstructObject(int objectID,
const wxClassInfo *classInfo,
int paramCount,
wxAny *params,
int *objectIDValues,
const wxClassInfo **WXUNUSED(objectClassInfos),
wxStringToAnyHashMap &WXUNUSED(metadata)
)
{
wxString objectName = wxString::Format( "LocalObject_%d", objectID );
m_source += ( wxString::Format( "\t%s *%s = new %s(",
classInfo->GetClassName(),
objectName,
classInfo->GetClassName()) );
m_data->SetObjectName( objectID, objectName );
int i;
for (i = 0; i < paramCount; i++)
{
if ( objectIDValues[i] != wxInvalidObjectID )
m_source += ( wxString::Format( "%s",
m_data->GetObjectName( objectIDValues[i] ) ) );
else
{
m_source += (
wxString::Format( "%s", ValueAsCode(params[i]) ) );
}
if (i < paramCount - 1)
m_source += ( ", " );
}
m_source += ( ");\n" );
}
void wxObjectCodeReaderCallback::SetProperty(int objectID,
const wxClassInfo *WXUNUSED(classInfo),
const wxPropertyInfo* propertyInfo,
const wxAny &value)
{
m_source += ( wxString::Format( "\t%s->%s(%s);\n",
m_data->GetObjectName(objectID),
propertyInfo->GetAccessor()->GetSetterName(),
ValueAsCode(value)) );
}
void wxObjectCodeReaderCallback::SetPropertyAsObject(int objectID,
const wxClassInfo *WXUNUSED(classInfo),
const wxPropertyInfo* propertyInfo,
int valueObjectId)
{
if ( propertyInfo->GetTypeInfo()->GetKind() == wxT_OBJECT )
m_source += ( wxString::Format( "\t%s->%s(*%s);\n",
m_data->GetObjectName(objectID),
propertyInfo->GetAccessor()->GetSetterName(),
m_data->GetObjectName( valueObjectId) ) );
else
m_source += ( wxString::Format( "\t%s->%s(%s);\n",
m_data->GetObjectName(objectID),
propertyInfo->GetAccessor()->GetSetterName(),
m_data->GetObjectName( valueObjectId) ) );
}
void wxObjectCodeReaderCallback::AddToPropertyCollection( int objectID,
const wxClassInfo *WXUNUSED(classInfo),
const wxPropertyInfo* propertyInfo,
const wxAny &value)
{
m_source += ( wxString::Format( "\t%s->%s(%s);\n",
m_data->GetObjectName(objectID),
propertyInfo->GetAccessor()->GetAdderName(),
ValueAsCode(value)) );
}
// sets the corresponding property (value is an object)
void wxObjectCodeReaderCallback::
AddToPropertyCollectionAsObject(int WXUNUSED(objectID),
const wxClassInfo *WXUNUSED(classInfo),
const wxPropertyInfo* WXUNUSED(propertyInfo),
int WXUNUSED(valueObjectId))
{
// TODO
}
void wxObjectCodeReaderCallback::SetConnect(int eventSourceObjectID,
const wxClassInfo *WXUNUSED(eventSourceClassInfo),
const wxPropertyInfo *delegateInfo,
const wxClassInfo *eventSinkClassInfo,
const wxHandlerInfo* handlerInfo,
int eventSinkObjectID )
{
wxString ehsource = m_data->GetObjectName( eventSourceObjectID );
wxString ehsink = m_data->GetObjectName(eventSinkObjectID);
wxString ehsinkClass = eventSinkClassInfo->GetClassName();
const wxEventSourceTypeInfo *delegateTypeInfo =
wx_dynamic_cast(const wxEventSourceTypeInfo*, delegateInfo->GetTypeInfo());
if ( delegateTypeInfo )
{
int eventType = delegateTypeInfo->GetEventType();
wxString handlerName = handlerInfo->GetName();
wxString code =
wxString::Format(
"\t%s->Connect( %s->GetId(), %d, "
"(wxObjectEventFunction)(wxEventFunction) & %s::%s, NULL, %s );",
ehsource, ehsource, eventType, ehsinkClass,
handlerName, ehsink );
m_source += ( code );
}
else
{
wxLogError(_("delegate has no type info"));
}
}