x3d_shape.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 Cirilo Bernardo <[email protected]>
 * Copyright (C) 2021-2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
 
#include <iostream>
#include <sstream>
#include <wx/xml/xml.h>
#include <wx/log.h>
#include "x3d_ops.h"
#include "x3d_shape.h"
#include "plugins/3dapi/ifsg_all.h"
 
 
X3DSHAPE::X3DSHAPE() : X3DNODE()
{
 m_Type = X3D_SHAPE;
 appearance = nullptr;
 geometry = nullptr;
}
 
 
X3DSHAPE::X3DSHAPE( X3DNODE* aParent ) : X3DNODE()
{
 m_Type = X3D_SHAPE;
 appearance = nullptr;
 geometry = nullptr;
 
 if( nullptr != aParent )
 {
 X3DNODES ptype = aParent->GetNodeType();
 
 if( X3D_TRANSFORM == ptype || X3D_SWITCH == ptype )
 m_Parent = aParent;
 }
 
 if( nullptr != m_Parent )
 m_Parent->AddChildNode( this );
}
 
 
X3DSHAPE::~X3DSHAPE()
{
 wxLogTrace( traceVrmlPlugin,
 wxT( " * [INFO] Destroying Shape with %zu children, %zu references, "
 "%and ul back pointers." ),
 m_Children.size(), m_Refs.size(), m_BackPointers.size() );
}
 
 
bool X3DSHAPE::Read( wxXmlNode* aNode, X3DNODE* aTopNode, X3D_DICT& aDict )
{
 if( nullptr == aTopNode || nullptr == aNode )
 return false;
 
 if( nullptr != appearance || nullptr != geometry )
 return false;
 
 m_Dict = &aDict;
 wxXmlAttribute* prop;
 
 for( prop = aNode->GetAttributes(); prop != nullptr; prop = prop->GetNext() )
 {
 const wxString& pname = prop->GetName();
 
 if( pname == wxT( "DEF" ) )
 {
 m_Name = prop->GetValue();
 m_Dict->AddName( m_Name, this );
 }
 }
 
 for( wxXmlNode* child = aNode->GetChildren(); child != nullptr; child = child->GetNext() )
 {
 wxString name = child->GetName();
 
 if( name == wxT( "Appearance" ) && nullptr == appearance )
 X3D::ReadAppearance( child, this, aDict );
 else if( name == wxT( "IndexedFaceSet" ) && nullptr == geometry )
 X3D::ReadIndexedFaceSet( child, this, aDict );
 }
 
 if( nullptr == appearance || nullptr == geometry )
 return false;
 
 if( !SetParent( aTopNode ) )
 return false;
 
 return true;
}
 
 
bool X3DSHAPE::SetParent( X3DNODE* aParent, bool doUnlink )
{
 if( aParent == m_Parent )
 return true;
 
 if( nullptr != aParent )
 {
 X3DNODES nt = aParent->GetNodeType();
 
 if( nt != X3D_SWITCH && nt != X3D_TRANSFORM )
 return false;
 }
 
 if( nullptr != m_Parent && doUnlink )
 m_Parent->unlinkChildNode( this );
 
 m_Parent = aParent;
 
 if( nullptr != m_Parent )
 m_Parent->AddChildNode( this );
 
 return true;
}
 
 
bool X3DSHAPE::AddChildNode( X3DNODE* aNode )
{
 if( nullptr == aNode )
 return false;
 
 X3DNODES tchild = aNode->GetNodeType();
 
 if( X3D_APPEARANCE != tchild && X3D_INDEXED_FACE_SET != tchild )
 return false;
 
 std::list< X3DNODE* >::iterator sC = m_Children.begin();
 std::list< X3DNODE* >::iterator eC = m_Children.end();
 
 while( sC != eC )
 {
 if( *sC == aNode )
 return false;
 
 ++sC;
 }
 
 if( X3D_APPEARANCE == tchild )
 {
 if( nullptr == appearance )
 {
 m_Children.push_back( aNode );
 appearance = aNode;
 }
 else
 {
 return false;
 }
 }
 else
 {
 if( nullptr == geometry )
 {
 m_Children.push_back( aNode );
 geometry = aNode;
 }
 else
 {
 return false;
 }
 }
 
 if( aNode->GetParent() != this )
 aNode->SetParent( this );
 
 return true;
}
 
 
bool X3DSHAPE::AddRefNode( X3DNODE* aNode )
{
 if( nullptr == aNode )
 return false;
 
 X3DNODES tchild = aNode->GetNodeType();
 
 if( X3D_APPEARANCE != tchild && X3D_INDEXED_FACE_SET != tchild )
 return false;
 
 std::list< X3DNODE* >::iterator sR = m_Refs.begin();
 std::list< X3DNODE* >::iterator eR = m_Refs.end();
 
 while( sR != eR )
 {
 if( *sR == aNode )
 return false;
 
 ++sR;
 }
 
 if( X3D_APPEARANCE == tchild )
 {
 if( nullptr == appearance )
 {
 m_Refs.push_back( aNode );
 aNode->addNodeRef( this );
 appearance = aNode;
 }
 else
 {
 return false;
 }
 }
 else
 {
 if( nullptr == geometry )
 {
 m_Refs.push_back( aNode );
 aNode->addNodeRef( this );
 geometry = aNode;
 }
 else
 {
 return false;
 }
 }
 
 return true;
}
 
 
SGNODE* X3DSHAPE::TranslateToSG( SGNODE* aParent )
{
 if( nullptr == geometry || nullptr == appearance )
 return nullptr;
 
 wxLogTrace( traceVrmlPlugin,
 wxT( " * [INFO] Translating Shape with %zu children, %zu references, "
 "and %zu back pointers." ),
 m_Children.size(), m_Refs.size(), m_BackPointers.size() );
 
 S3D::SGTYPES ptype = S3D::GetSGNodeType( aParent );
 
 if( nullptr != aParent && ptype != S3D::SGTYPE_TRANSFORM )
 {
 wxLogTrace( traceVrmlPlugin,
 wxT( " * [BUG] Shape does not have a Transform parent (parent ID: %d)" ),
 ptype );
 
 return nullptr;
 }
 
 if( m_sgNode )
 {
 if( nullptr != aParent )
 {
 if( nullptr == S3D::GetSGNodeParent( m_sgNode )
 && !S3D::AddSGNodeChild( aParent, m_sgNode ) )
 {
 return nullptr;
 }
 else if( aParent != S3D::GetSGNodeParent( m_sgNode )
 && !S3D::AddSGNodeRef( aParent, m_sgNode ) )
 {
 return nullptr;
 }
 }
 
 return m_sgNode;
 }
 
 IFSG_SHAPE shNode( aParent );
 
 SGNODE* pShape = shNode.GetRawPtr();
 SGNODE* pGeom = geometry->TranslateToSG( pShape );
 SGNODE* pApp = appearance->TranslateToSG( pShape );
 
 if( nullptr == pApp || nullptr == pGeom )
 {
 if( pGeom )
 {
 IFSG_FACESET tmp( false );
 tmp.Attach( pGeom );
 tmp.Destroy();
 }
 
 if( pApp )
 {
 IFSG_APPEARANCE tmp( false );
 tmp.Attach( pApp );
 tmp.Destroy();
 }
 
 shNode.Destroy();
 return nullptr;
 }
 
 m_sgNode = shNode.GetRawPtr();
 
 return m_sgNode;
}
 
 
void X3DSHAPE::unlinkChildNode( const X3DNODE* aNode )
{
 if( nullptr == aNode )
 return;
 
 if( aNode == appearance )
 appearance = nullptr;
 else if( aNode == geometry )
 geometry = nullptr;
 
 X3DNODE::unlinkChildNode( aNode );
}
 
 
void X3DSHAPE::unlinkRefNode( const X3DNODE* aNode )
{
 if( nullptr == aNode )
 return;
 
 if( aNode == appearance )
 appearance = nullptr;
 else if( aNode == geometry )
 geometry = nullptr;
 
 X3DNODE::unlinkRefNode( aNode );
}