/**
* fills in the OutAddresses array with the addresses of all of the available objects.
* @param InItem The property to get objects from.
* @param OutAddresses Storage array for all of the objects' addresses.
*/
bool FObjectPropertyNode::GetReadAddressUncached( FPropertyNode& InNode, FReadAddressListData& OutAddresses ) const
{
// Are any objects selected for property editing?
if( !GetNumObjects())
{
return false;
}
UProperty* InItemProperty = InNode.GetProperty();
// Is there a InItemProperty bound to the InItemProperty window?
if( !InItemProperty )
{
return false;
}
// Write addresses to the output.
for ( int32 ObjectIdx = 0 ; ObjectIdx < GetNumObjects() ; ++ObjectIdx )
{
const UObject* TempObject = GetUObject(ObjectIdx);
if( TempObject != NULL )
{
OutAddresses.Add( TempObject, InNode.GetValueBaseAddress( (uint8*)(TempObject) ) );
}
}
// Everything checked out and we have usable addresses.
return true;
}
FValueCache( TSharedRef<FPropertyNode> InPropertyNode, UObject* InOwnerObject )
: PropertyNode( InPropertyNode )
{
PropertyValueRoot.OwnerObject = InOwnerObject;
UProperty* Property = InPropertyNode->GetProperty();
check(Property);
check(PropertyValueRoot.OwnerObject);
FPropertyNode* ParentNode = InPropertyNode->GetParentNode();
//UArrayProperty* ArrayProp = Cast<UArrayProperty>(Property);
UArrayProperty* OuterArrayProp = Cast<UArrayProperty>(Property->GetOuter());
// calculate the values for the current object
PropertyValueBaseAddress = OuterArrayProp == NULL
? InPropertyNode->GetValueBaseAddress(PropertyValueRoot.ValueAddress)
: ParentNode->GetValueBaseAddress(PropertyValueRoot.ValueAddress);
PropertyValueAddress = InPropertyNode->GetValueAddress(PropertyValueRoot.ValueAddress);
}
bool FObjectPropertyNode::GetReadAddressUncached(FPropertyNode& InNode,
bool InRequiresSingleSelection,
FReadAddressListData& OutAddresses,
bool bComparePropertyContents,
bool bObjectForceCompare,
bool bArrayPropertiesCanDifferInSize) const
{
// Are any objects selected for property editing?
if( !GetNumObjects())
{
return false;
}
UProperty* InItemProperty = InNode.GetProperty();
// Is there a InItemProperty bound to the InItemProperty window?
if( !InItemProperty )
{
return false;
}
// Requesting a single selection?
if( InRequiresSingleSelection && GetNumObjects() > 1)
{
// Fail: we're editing properties for multiple objects.
return false;
}
//assume all properties are the same unless proven otherwise
bool bAllTheSame = true;
//////////////////////////////////////////
// If this item is the child of an array, return NULL if there is a different number
// of items in the array in different objects, when multi-selecting.
if( Cast<UArrayProperty>(InItemProperty->GetOuter()) )
{
FPropertyNode* ParentNode = InNode.GetParentNode();
check(ParentNode);
const UObject* TempObject = GetUObject(0);
if( TempObject )
{
uint8* BaseAddr = ParentNode->GetValueBaseAddress( (uint8*)TempObject );
if( BaseAddr )
{
const int32 Num = FScriptArrayHelper::Num(BaseAddr);
for( int32 ObjIndex = 1 ; ObjIndex < GetNumObjects(); ObjIndex++ )
{
TempObject = GetUObject(ObjIndex);
BaseAddr = ParentNode->GetValueBaseAddress( (uint8*)TempObject );
if( BaseAddr && Num != FScriptArrayHelper::Num( BaseAddr ) )
{
bAllTheSame = false;
}
}
}
}
}
uint8* Base = GetUObject(0) ? InNode.GetValueBaseAddress( (uint8*)(GetUObject(0)) ) : NULL;
if (Base)
{
// If the item is an array itself, return NULL if there are a different number of
// items in the array in different objects, when multi-selecting.
if( Cast<UArrayProperty>(InItemProperty) )
{
// This flag is an override for array properties which want to display e.g. the "Clear" and "Empty"
// buttons, even though the array properties may differ in the number of elements.
if ( !bArrayPropertiesCanDifferInSize )
{
const UObject* TempObject = GetUObject(0);
int32 const Num = FScriptArrayHelper::Num(InNode.GetValueBaseAddress( (uint8*)TempObject));
for( int32 ObjIndex = 1 ; ObjIndex < GetNumObjects() ; ObjIndex++ )
{
TempObject = GetUObject(ObjIndex);
if( TempObject && Num != FScriptArrayHelper::Num(InNode.GetValueBaseAddress((uint8*)TempObject)) )
{
bAllTheSame = false;
}
}
}
}
else
{
if ( bComparePropertyContents || !Cast<UObjectPropertyBase>(InItemProperty) || bObjectForceCompare )
{
// Make sure the value of this InItemProperty is the same in all selected objects.
for( int32 ObjIndex = 1 ; ObjIndex < GetNumObjects() ; ObjIndex++ )
{
const UObject* TempObject = GetUObject(ObjIndex);
if( !InItemProperty->Identical( Base, InNode.GetValueBaseAddress( (uint8*)TempObject ) ) )
{
bAllTheSame = false;
}
}
}
else
{
if ( Cast<UObjectPropertyBase>(InItemProperty) )
{
// We don't want to exactly compare component properties. However, we
// need to be sure that all references are either valid or invalid.
// If BaseObj is NON-NULL, all other objects' properties should also be non-NULL.
// If BaseObj is NULL, all other objects' properties should also be NULL.
UObject* BaseObj = Cast<UObjectPropertyBase>(InItemProperty)->GetObjectPropertyValue(Base);
for( int32 ObjIndex = 1 ; ObjIndex < GetNumObjects() ; ObjIndex++ )
{
const UObject* TempObject = GetUObject(ObjIndex);
UObject* CurObj = Cast<UObjectPropertyBase>(InItemProperty)->GetObjectPropertyValue(InNode.GetValueBaseAddress( (uint8*)TempObject ));
if ( ( !BaseObj && CurObj ) // BaseObj is NULL, but this InItemProperty is non-NULL!
|| ( BaseObj && !CurObj ) ) // BaseObj is non-NULL, but this InItemProperty is NULL!
{
bAllTheSame = false;
}
}
}
}
}
}
// Write addresses to the output.
for ( int32 ObjIndex = 0 ; ObjIndex < GetNumObjects(); ++ObjIndex )
{
const UObject* TempObject = GetUObject(ObjIndex);
if( TempObject )
{
OutAddresses.Add( TempObject, InNode.GetValueBaseAddress( (uint8*)(TempObject) ) );
}
}
// Everything checked out and we have usable addresses.
return bAllTheSame;
}
