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added wxDynamicObject (kind of delegate, docs to come once this has calmed down)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22765 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2003-08-11 10:01:02 +00:00
parent 395470d965
commit 2d51f067b9
4 changed files with 354 additions and 36 deletions
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189
src/common/xti.cpp
View File

@@ -33,6 +33,11 @@
#if wxUSE_EXTENDED_RTTI
#include <map>
#include <string>
using namespace std ;
// ----------------------------------------------------------------------------
// Enum Support
// ----------------------------------------------------------------------------
@@ -407,7 +412,7 @@ void wxSetStringToArray( const wxString &s , wxArrayString &array )
// wxClassInfo
// ----------------------------------------------------------------------------
const wxPropertyAccessor *wxClassInfo::FindAccessor(const char *PropertyName)
const wxPropertyAccessor *wxClassInfo::FindAccessor(const char *PropertyName) const
{
const wxPropertyInfo* info = FindPropertyInfo( PropertyName ) ;
@@ -417,7 +422,7 @@ const wxPropertyAccessor *wxClassInfo::FindAccessor(const char *PropertyName)
return NULL ;
}
const wxPropertyInfo *wxClassInfo::FindPropertyInfo (const char *PropertyName) const
const wxPropertyInfo *wxClassInfo::FindPropertyInfoInThisClass (const char *PropertyName) const
{
const wxPropertyInfo* info = GetFirstProperty() ;
@@ -428,6 +433,15 @@ const wxPropertyInfo *wxClassInfo::FindPropertyInfo (const char *PropertyName) c
info = info->GetNext() ;
}
return 0;
}
const wxPropertyInfo *wxClassInfo::FindPropertyInfo (const char *PropertyName) const
{
const wxPropertyInfo* info = FindPropertyInfoInThisClass( PropertyName ) ;
if ( info )
return info ;
const wxClassInfo** parents = GetParents() ;
for ( int i = 0 ; parents[i] ; ++ i )
{
@@ -438,7 +452,7 @@ const wxPropertyInfo *wxClassInfo::FindPropertyInfo (const char *PropertyName) c
return 0;
}
const wxHandlerInfo *wxClassInfo::FindHandlerInfo (const char *PropertyName) const
const wxHandlerInfo *wxClassInfo::FindHandlerInfoInThisClass (const char *PropertyName) const
{
const wxHandlerInfo* info = GetFirstHandler() ;
@@ -449,6 +463,16 @@ const wxHandlerInfo *wxClassInfo::FindHandlerInfo (const char *PropertyName) con
info = info->GetNext() ;
}
return 0;
}
const wxHandlerInfo *wxClassInfo::FindHandlerInfo (const char *PropertyName) const
{
const wxHandlerInfo* info = FindHandlerInfoInThisClass( PropertyName ) ;
if ( info )
return info ;
const wxClassInfo** parents = GetParents() ;
for ( int i = 0 ; parents[i] ; ++ i )
{
@@ -460,7 +484,7 @@ const wxHandlerInfo *wxClassInfo::FindHandlerInfo (const char *PropertyName) con
}
void wxClassInfo::SetProperty(wxObject *object, const char *propertyName, const wxxVariant &value)
void wxClassInfo::SetProperty(wxObject *object, const char *propertyName, const wxxVariant &value) const
{
const wxPropertyAccessor *accessor;
@@ -469,7 +493,7 @@ void wxClassInfo::SetProperty(wxObject *object, const char *propertyName, const
accessor->SetProperty( object , value ) ;
}
wxxVariant wxClassInfo::GetProperty(wxObject *object, const char *propertyName)
wxxVariant wxClassInfo::GetProperty(wxObject *object, const char *propertyName) const
{
const wxPropertyAccessor *accessor;
@@ -491,5 +515,160 @@ wxObject* wxxVariant::GetAsObject()
return NULL ;
}
// ----------------------------------------------------------------------------
// wxDynamicObject support
// ----------------------------------------------------------------------------
//
// Dynamic Objects are objects that have a real superclass instance and carry their
// own attributes in a hash map. Like this it is possible to create the objects and
// stream them, as if their class information was already available from compiled data
struct wxDynamicObject::wxDynamicObjectInternal
{
map<string,wxxVariant> m_properties ;
} ;
// instantiates this object with an instance of its superclass
wxDynamicObject::wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info)
{
m_superClassInstance = superClassInstance ;
m_classInfo = info ;
m_data = new wxDynamicObjectInternal ;
}
wxDynamicObject::~wxDynamicObject()
{
delete m_data ;
delete m_superClassInstance ;
}
void wxDynamicObject::SetProperty (const wxChar *propertyName, const wxxVariant &value)
{
wxASSERT_MSG(m_classInfo->FindPropertyInfoInThisClass(propertyName),wxT("Accessing Unknown Property in a Dynamic Object") ) ;
m_data->m_properties[propertyName] = value ;
}
wxxVariant wxDynamicObject::GetProperty (const wxChar *propertyName) const
{
wxASSERT_MSG(m_classInfo->FindPropertyInfoInThisClass(propertyName),wxT("Accessing Unknown Property in a Dynamic Object") ) ;
return m_data->m_properties[propertyName] ;
}
// ----------------------------------------------------------------------------
// wxDynamiClassInfo
// ----------------------------------------------------------------------------
wxDynamicClassInfo::wxDynamicClassInfo( const wxChar *unitName, const wxChar *className , const wxClassInfo* superClass ) :
wxClassInfo( unitName, className , new const wxClassInfo*[2])
{
GetParents()[0] = superClass ;
GetParents()[1] = NULL ;
}
wxDynamicClassInfo::~wxDynamicClassInfo()
{
delete[] GetParents() ;
}
wxObject *wxDynamicClassInfo::CreateObject() const
{
wxObject* parent = GetParents()[0]->CreateObject() ;
return new wxDynamicObject( parent , this ) ;
}
void wxDynamicClassInfo::Create (wxObject *object, int paramCount, wxxVariant *params) const
{
wxDynamicObject *dynobj = dynamic_cast< wxDynamicObject *>( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::Create on an object other than wxDynamicObject") ) ;
GetParents()[0]->Create( dynobj->GetSuperClassInstance() , paramCount , params ) ;
}
// get number of parameters for constructor
int wxDynamicClassInfo::GetCreateParamCount() const
{
return GetParents()[0]->GetCreateParamCount() ;
}
// get i-th constructor parameter
const wxChar* wxDynamicClassInfo::GetCreateParamName(int i) const
{
return GetParents()[0]->GetCreateParamName( i ) ;
}
void wxDynamicClassInfo::SetProperty(wxObject *object, const char *propertyName, const wxxVariant &value) const
{
wxDynamicObject* dynobj = dynamic_cast< wxDynamicObject * >( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::SetProperty on an object other than wxDynamicObject") ) ;
if ( FindPropertyInfoInThisClass(propertyName) )
dynobj->SetProperty( propertyName , value ) ;
else
GetParents()[0]->SetProperty( dynobj->GetSuperClassInstance() , propertyName , value ) ;
}
wxxVariant wxDynamicClassInfo::GetProperty(wxObject *object, const char *propertyName) const
{
wxDynamicObject* dynobj = dynamic_cast< wxDynamicObject * >( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::SetProperty on an object other than wxDynamicObject") ) ;
if ( FindPropertyInfoInThisClass(propertyName) )
return dynobj->GetProperty( propertyName ) ;
else
return GetParents()[0]->GetProperty( dynobj->GetSuperClassInstance() , propertyName ) ;
}
void wxDynamicClassInfo::AddProperty( const wxChar *propertyName , const wxTypeInfo* typeInfo )
{
new wxPropertyInfo( m_firstProperty , propertyName , "" , typeInfo , new wxGenericPropertyAccessor( propertyName ) , wxxVariant() ) ;
}
void wxDynamicClassInfo::AddHandler( const wxChar *handlerName , wxObjectEventFunction address , const wxClassInfo* eventClassInfo )
{
new wxHandlerInfo( m_firstHandler , handlerName , address , eventClassInfo ) ;
}
// ----------------------------------------------------------------------------
// wxGenericPropertyAccessor
// ----------------------------------------------------------------------------
struct wxGenericPropertyAccessor::wxGenericPropertyAccessorInternal
{
wxString m_propertyName ;
} ;
wxGenericPropertyAccessor::wxGenericPropertyAccessor( const wxChar* propertyName )
{
m_data = new wxGenericPropertyAccessorInternal ;
m_data->m_propertyName = propertyName ;
}
wxGenericPropertyAccessor::~wxGenericPropertyAccessor()
{
delete m_data ;
}
void wxGenericPropertyAccessor::SetProperty(wxObject *object, const wxxVariant &value) const
{
wxDynamicObject* dynobj = dynamic_cast< wxDynamicObject * >( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::SetProperty on an object other than wxDynamicObject") ) ;
dynobj->SetProperty(m_data->m_propertyName , value ) ;
}
wxxVariant wxGenericPropertyAccessor::GetProperty(const wxObject *object) const
{
const wxDynamicObject* dynobj = dynamic_cast< const wxDynamicObject * >( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::SetProperty on an object other than wxDynamicObject") ) ;
return dynobj->GetProperty( m_data->m_propertyName ) ;
}
wxxVariant wxGenericPropertyAccessor::ReadValue( const wxString &value ) const
{
return wxxVariant(value) ;
}
void wxGenericPropertyAccessor::WriteValue( wxString& value , const wxObject *object ) const
{
const wxDynamicObject* dynobj = dynamic_cast< const wxDynamicObject * >( object ) ;
wxASSERT_MSG( dynobj , wxT("cannot call wxDynamicClassInfo::SetProperty on an object other than wxDynamicObject") ) ;
wxxVariant val = dynobj->GetProperty( m_data->m_propertyName ) ;
value = val.GetAsString() ;
}
#endif

66
src/common/xtistrm.cpp
View File

@@ -63,12 +63,25 @@ void wxWriter::WriteObject(const wxObject *object, const wxClassInfo *classInfo
{
if ( persister->BeforeWriteObject( object , classInfo , name ) )
{
int oid = m_data->m_nextId++ ;
m_data->m_writtenObjects[object] = oid ;
DoBeginWriteObject( object , classInfo , oid , name ) ;
wxWriterInternalPropertiesData data ;
WriteAllProperties( object , classInfo , persister , &data ) ;
DoEndWriteObject( object , classInfo , oid , name ) ;
if ( object == NULL || IsObjectKnown( object ) )
{
DoWriteObjectReference( NULL , NULL , object , classInfo , GetObjectID(object) , NULL ) ;
}
else
{
int oid = m_data->m_nextId++ ;
m_data->m_writtenObjects[object] = oid ;
// in case this object is a wxDynamicObject we also have to insert is superclass
// instance with the same id, so that object relations are streamed out correctly
const wxDynamicObject* dynobj = dynamic_cast<const wxDynamicObject *>( object ) ;
if ( dynobj )
m_data->m_writtenObjects[dynobj->GetSuperClassInstance()] = oid ;
DoBeginWriteObject( object , classInfo , oid , name ) ;
wxWriterInternalPropertiesData data ;
WriteAllProperties( object , classInfo , persister , &data ) ;
DoEndWriteObject( object , classInfo , oid , name ) ;
}
}
}
@@ -98,7 +111,15 @@ void wxWriter::WriteAllProperties( const wxObject * obj , const wxClassInfo* ci
{
int oid = m_data->m_nextId++ ;
if ( !embeddedObject)
{
// insert this object and its id
m_data->m_writtenObjects[vobj] = oid ;
// in case this object is a wxDynamicObject we also have to insert is superclass
// instance with the same id, so that object relations are streamed out correctly
const wxDynamicObject* dynobj = dynamic_cast<const wxDynamicObject *>( vobj ) ;
if ( dynobj )
m_data->m_writtenObjects[dynobj->GetSuperClassInstance()] = oid ;
}
DoBeginWriteParamAsObject( obj , ci , vobj , pci , oid , pi ) ;
if ( vobj != NULL )
@@ -177,6 +198,11 @@ void wxWriter::WriteAllProperties( const wxObject * obj , const wxClassInfo* ci
}
pi = pi->GetNext() ;
}
// in case this object is wxDynamic object we have to hand over the streaming
// of the properties of the superclasses to the real super class instance
const wxDynamicObject* dynobj = dynamic_cast< const wxDynamicObject* > (obj ) ;
if ( dynobj )
obj = dynobj->GetSuperClassInstance() ;
const wxClassInfo** parents = ci->GetParents() ;
for ( int i = 0 ; parents[i] ; ++ i )
{
@@ -589,6 +615,13 @@ void wxRuntimeDepersister::CreateObject(int objectID,
{
wxObject *o;
o = m_data->GetObject(objectIdValues[i]);
// if this is a dynamic object and we are asked for another class
// than wxDynamicObject we cast it down manually.
wxDynamicObject *dyno = dynamic_cast< wxDynamicObject * > (o) ;
if ( dyno!=NULL && (objectClassInfos[i] != dyno->GetClassInfo()) )
{
o = dyno->GetSuperClassInstance() ;
}
params[i] = objectClassInfos[i]->InstanceToVariant(o) ;
}
}
@@ -603,25 +636,36 @@ void wxRuntimeDepersister::DestroyObject(int objectID, wxClassInfo *WXUNUSED(cla
}
void wxRuntimeDepersister::SetProperty(int objectID,
const wxClassInfo *WXUNUSED(classInfo),
const wxClassInfo *classInfo,
const wxPropertyInfo* propertyInfo,
const wxxVariant &value)
{
wxObject *o;
o = m_data->GetObject(objectID);
propertyInfo->GetAccessor()->SetProperty( o , value ) ;
classInfo->SetProperty( o , propertyInfo->GetName() , value ) ;
// propertyInfo->GetAccessor()->SetProperty( o , value ) ;
}
void wxRuntimeDepersister::SetPropertyAsObject(int objectID,
const wxClassInfo *WXUNUSED(classInfo),
const wxClassInfo *classInfo,
const wxPropertyInfo* propertyInfo,
int valueObjectId)
{
wxObject *o, *valo;
o = m_data->GetObject(objectID);
valo = m_data->GetObject(valueObjectId);
propertyInfo->GetAccessor()->SetProperty( o ,
(dynamic_cast<const wxClassTypeInfo*>(propertyInfo->GetTypeInfo()))->GetClassInfo()->InstanceToVariant(valo) ) ;
const wxClassInfo* valClassInfo = (dynamic_cast<const wxClassTypeInfo*>(propertyInfo->GetTypeInfo()))->GetClassInfo() ;
// if this is a dynamic object and we are asked for another class
// than wxDynamicObject we cast it down manually.
wxDynamicObject *dynvalo = dynamic_cast< wxDynamicObject * > (valo) ;
if ( dynvalo!=NULL && (valClassInfo != dynvalo->GetClassInfo()) )
{
valo = dynvalo->GetSuperClassInstance() ;
}
classInfo->SetProperty( o , propertyInfo->GetName() , valClassInfo->InstanceToVariant(valo) ) ;
// propertyInfo->GetAccessor()->SetProperty( o ,
// (dynamic_cast<const wxClassTypeInfo*>(propertyInfo->GetTypeInfo()))->GetClassInfo()->InstanceToVariant(valo) ) ;
}
void wxRuntimeDepersister::SetConnect(int eventSourceObjectID,