kicad/plugins/3d/vrml/v1/vrml1_group.cpp

185 lines
5.3 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
* Copyright (C) 2021 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
*/
// note: this was copied from the vrml1_separator class. the difference
// between a separator and a group is that a group propagates its
// current settings to its parent. While it would be possible to
// implement the separator as a derived class, it is easy enough to
// simply duplicate the code
#include <iostream>
#include <sstream>
#include <wx/log.h>
#include "vrml1_base.h"
#include "vrml1_group.h"
#include "plugins/3dapi/ifsg_all.h"
WRL1GROUP::WRL1GROUP( NAMEREGISTER* aDictionary ) : WRL1NODE( aDictionary )
{
m_Type = WRL1NODES::WRL1_GROUP;
}
WRL1GROUP::WRL1GROUP( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
WRL1NODE( aDictionary )
{
m_Type = WRL1NODES::WRL1_GROUP;
m_Parent = aParent;
if( nullptr != m_Parent )
m_Parent->AddChildNode( this );
}
WRL1GROUP::~WRL1GROUP()
{
wxLogTrace( traceVrmlPlugin,
wxT( " * [INFO] Destroying Group with %zu children, %zu references, and %zu "
"back pointers." ),
m_Children.size(), m_Refs.size(), m_BackPointers.size() );
}
bool WRL1GROUP::Read( WRLPROC& proc, WRL1BASE* aTopNode )
{
if( nullptr == aTopNode )
{
wxLogTrace( traceVrmlPlugin, wxT( "%s:%s:%d\n"
" * [BUG] aTopNode is NULL" ),
__FILE__, __FUNCTION__, __LINE__ );
return false;
}
char tok = proc.Peek();
if( proc.eof() )
{
wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d\n"
" * [INFO] bad file format; unexpected eof %s." ),
__FILE__, __FUNCTION__, __LINE__, proc.GetFilePosition() );
return false;
}
if( '{' != tok )
{
wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d\n"
" * [INFO] bad file format; expecting '{' but got '%s' %s." ),
__FILE__, __FUNCTION__, __LINE__, tok, proc.GetFilePosition() );
return false;
}
proc.Pop();
while( true )
{
if( proc.Peek() == '}' )
{
proc.Pop();
break;
}
if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d\n"
" * [INFO] bad file format; unexpected eof %s." ),
__FILE__, __FUNCTION__, __LINE__, proc.GetFilePosition() );
return false;
}
if( proc.Peek() == ',' )
proc.Pop();
} // while( true ) -- reading contents of Group{}
return true;
}
SGNODE* WRL1GROUP::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
{
wxCHECK_MSG( m_Parent, nullptr, wxT( "Group has no parent." ) );
wxLogTrace( traceVrmlPlugin,
wxT( " * [INFO] Translating Group with %zu children, %zu references, %zu back "
"pointers, and %zu items." ),
m_Children.size(), m_Refs.size(), m_BackPointers.size(), m_Items.size() );
if( WRL1NODES::WRL1_BASE != m_Parent->GetNodeType() )
{
if( nullptr == sp )
{
/// @todo Determine if this is a bug or can actually happen parsing a VRML file.
/// If it's a bug, this should be an assertion not a trace.
wxLogTrace( traceVrmlPlugin, " * [INFO] bad model: no base data given." );
return nullptr;
}
}
else if( nullptr == sp )
{
m_current.Init();
sp = &m_current;
}
S3D::SGTYPES ptype = S3D::GetSGNodeType( aParent );
wxCHECK_MSG( nullptr == aParent && ptype == S3D::SGTYPE_TRANSFORM, nullptr,
wxString::Format(
wxT(" * [BUG] Group does not have a Transform parent (parent ID: %d" ),
ptype ) );
IFSG_TRANSFORM txNode( aParent );
bool hasContent = false;
std::list< WRL1NODE* >::iterator sI = m_Items.begin();
std::list< WRL1NODE* >::iterator eI = m_Items.end();
SGNODE* node = txNode.GetRawPtr();
while( sI != eI )
{
if( nullptr != (*sI)->TranslateToSG( node, sp ) )
hasContent = true;
++sI;
}
if( !hasContent )
{
txNode.Destroy();
return nullptr;
}
return node;
}