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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "dmxserializationdictionary.h"
#include "dmxloader/dmxelement.h"
#include "dmxloader/dmxattribute.h"
//-----------------------------------------------------------------------------
//
// Element dictionary used in serialization
//
//-----------------------------------------------------------------------------
CDmxSerializationDictionary::CDmxSerializationDictionary( int nElementsHint /* = 0 */ ) :
m_Dict( 0, nElementsHint, CDmxSerializationDictionary::LessFunc )
{
}
//-----------------------------------------------------------------------------
// Used to sort the list of elements
//-----------------------------------------------------------------------------
bool CDmxSerializationDictionary::LessFunc( const DmxElementInfo_t &lhs, const DmxElementInfo_t &rhs )
{
return lhs.m_pElement < rhs.m_pElement;
}
//-----------------------------------------------------------------------------
// Finds the handle of the element
//-----------------------------------------------------------------------------
DmxSerializationHandle_t CDmxSerializationDictionary::Find( CDmxElement *pElement )
{
DmxElementInfo_t find;
find.m_pElement = pElement;
return m_Dict.Find( find );
}
//-----------------------------------------------------------------------------
// Creates the list of all things to serialize
//-----------------------------------------------------------------------------
void CDmxSerializationDictionary::BuildElementList_R( CDmxElement *pElement, bool bFlatMode, bool bIsRoot )
{
if ( !pElement )
return;
// FIXME: Right here we should ask the element if it's an external
// file reference and exit immediately if so.
// This means we've already encountered this guy.
// Therefore, he can never be a root element
DmxSerializationHandle_t h = Find( pElement );
if ( h != m_Dict.InvalidIndex() )
{
m_Dict[h].m_bRoot = true;
return;
}
DmxElementInfo_t info;
info.m_bRoot = bFlatMode || bIsRoot;
info.m_pElement = pElement;
m_Dict.Insert( info );
int nCount = pElement->AttributeCount();
for ( int i = 0; i < nCount; ++i )
{
CDmxAttribute *pAttribute = pElement->GetAttribute(i);
switch( pAttribute->GetType() )
{
case AT_ELEMENT:
{
CDmxElement *pChild = pAttribute->GetValue<CDmxElement*>();
if ( !pChild )
break;
BuildElementList_R( pChild, bFlatMode, false );
}
break;
case AT_ELEMENT_ARRAY:
{
const CUtlVector<CDmxElement*> &array = pAttribute->GetArray<CDmxElement*>( );
int nCountArray = array.Count();
for ( int j = 0; j < nCountArray; ++j )
{
CDmxElement *pChild = array[ j ];
if ( !pChild )
break;
BuildElementList_R( pChild, bFlatMode, false );
}
}
break;
}
}
}
void CDmxSerializationDictionary::BuildElementList( CDmxElement *pElement, bool bFlatMode )
{
BuildElementList_R( pElement, bFlatMode, true );
}
//-----------------------------------------------------------------------------
// Should I inline the serialization of this element?
//-----------------------------------------------------------------------------
bool CDmxSerializationDictionary::ShouldInlineElement( CDmxElement *pElement )
{
// This means we've already encountered this guy.
// Therefore, he can never be a root element
DmxSerializationHandle_t h = Find( pElement );
if ( h != m_Dict.InvalidIndex() )
return !m_Dict[h].m_bRoot;
// If we didn't find the element, it means it's a reference to an external
// element (or it's NULL), so don't inline ie.
return false;
}
//-----------------------------------------------------------------------------
// Clears the dictionary
//-----------------------------------------------------------------------------
void CDmxSerializationDictionary::Clear()
{
m_Dict.RemoveAll();
}
//-----------------------------------------------------------------------------
// How many root elements do we have?
//-----------------------------------------------------------------------------
int CDmxSerializationDictionary::RootElementCount() const
{
int nCount = 0;
DmxSerializationHandle_t h = m_Dict.FirstInorder();
while( h != m_Dict.InvalidIndex() )
{
if ( m_Dict[h].m_bRoot )
{
++nCount;
}
h = m_Dict.NextInorder( h );
}
return nCount;
}
//-----------------------------------------------------------------------------
// Iterates over all root elements to serialize
//-----------------------------------------------------------------------------
DmxSerializationHandle_t CDmxSerializationDictionary::FirstRootElement() const
{
// NOTE: I don't have to use First/NextInorder here because there
// are guaranteed to be no removals from the dictionary.
// Also, using inorder traversal won't get my actual root element to be first in the file
int nCount = m_Dict.Count();
for ( DmxSerializationHandle_t h = 0; h < nCount; ++h )
{
if ( m_Dict[h].m_bRoot )
return h;
}
return DMX_SERIALIZATION_HANDLE_INVALID;
}
DmxSerializationHandle_t CDmxSerializationDictionary::NextRootElement( DmxSerializationHandle_t h ) const
{
++h;
int nCount = m_Dict.Count();
for ( ; h < nCount; ++h )
{
if ( m_Dict[h].m_bRoot )
return h;
}
return DMX_SERIALIZATION_HANDLE_INVALID;
}
CDmxElement *CDmxSerializationDictionary::GetRootElement( DmxSerializationHandle_t h )
{
Assert( m_Dict[h].m_bRoot );
return m_Dict[h].m_pElement;
}