kicad/plugins/3d/vrml/v1/vrml1_switch.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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* 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
*/
#include <iostream>
#include <sstream>
#include <iterator>
#include <wx/log.h>
#include "vrml1_base.h"
#include "vrml1_switch.h"
#include "plugins/3dapi/ifsg_all.h"
WRL1SWITCH::WRL1SWITCH( NAMEREGISTER* aDictionary ) : WRL1NODE( aDictionary )
{
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m_Type = WRL1NODES::WRL1_SWITCH;
whichChild = -1;
}
WRL1SWITCH::WRL1SWITCH( NAMEREGISTER* aDictionary, WRL1NODE* aParent ) :
WRL1NODE( aDictionary )
{
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m_Type = WRL1NODES::WRL1_SWITCH;
m_Parent = aParent;
whichChild = -1;
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if( nullptr != m_Parent )
m_Parent->AddChildNode( this );
}
WRL1SWITCH::~WRL1SWITCH()
{
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wxLogTrace( traceVrmlPlugin,
wxT( " * [INFO] Destroying Switch node with %zu children, %zu"
"references, and %zu back pointers." ),
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m_Children.size(), m_Refs.size(), m_BackPointers.size() );
}
bool WRL1SWITCH::Read( WRLPROC& proc, WRL1BASE* aTopNode )
{
/*
* Structure of a Switch node:
*
* Switch {
* exposedField SFInt32 whichChild -1
* children
* }
*/
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wxCHECK_MSG( aTopNode, false, wxT( "Invalid top node." ) );
char tok = proc.Peek();
if( proc.eof() )
{
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wxLogTrace( traceVrmlPlugin, wxT( "%s:%s:%d\n"
" * [INFO] bad file format; unexpected eof %s." ),
__FILE__, __FUNCTION__, __LINE__, proc.GetFilePosition() );
return false;
}
if( '{' != tok )
{
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wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d\n"
" * [INFO] bad file format; expecting '{' but got '%s' %s.\n"
"%s" ),
__FILE__, __FUNCTION__, __LINE__, tok, proc.GetFilePosition(),
proc.GetError() );
return false;
}
proc.Pop();
std::string glob;
while( true )
{
char pchar = proc.Peek();
if( pchar == '}' )
{
proc.Pop();
break;
}
else if ( pchar == 'w' )
{
if( !proc.ReadName( glob ) )
{
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wxLogTrace( traceVrmlPlugin, wxT( "%s:%s:%d\n"
"%s" ),
__FILE__, __FUNCTION__, __LINE__ , proc.GetError() );
return false;
}
if( !glob.compare( "whichChild" ) )
{
if( !proc.ReadSFInt( whichChild ) )
{
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wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d"
" * [INFO] invalid whichChild %s (invalid value '%s')\n"
" * [INFO] file: '%s'\n"
"%s" ),
__FILE__, __FUNCTION__, __LINE__, proc.GetFilePosition(), glob,
proc.GetFileName(), proc.GetError() );
return false;
}
continue;
}
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wxLogTrace( traceVrmlPlugin,
wxT( "%s:%s:%d\n"
" * [INFO] invalid Switch %s (unexpected 'whichChild')\n"
" * [INFO] file: '%s'" ),
__FILE__, __FUNCTION__, __LINE__, proc.GetFilePosition(),
proc.GetFileName() );
return false;
}
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if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
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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 Switch{}
return true;
}
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SGNODE* WRL1SWITCH::TranslateToSG( SGNODE* aParent, WRL1STATUS* sp )
{
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wxLogTrace( traceVrmlPlugin,
wxT( " * [INFO] Translating Switch node with %zu children, %zu"
"references, and %zu back pointers (%zu total items)." ),
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m_Children.size(), m_Refs.size(), m_BackPointers.size(), m_Items.size() );
if( m_Items.empty() )
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return nullptr;
if( whichChild < 0 || whichChild >= (int)m_Items.size() )
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return nullptr;
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if( sp == nullptr )
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{
m_current.Init();
sp = &m_current;
}
std::list< WRL1NODE* >::iterator ip = m_Items.begin();
std::advance( ip, whichChild );
IFSG_TRANSFORM txNode( aParent );
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SGNODE* np = (*ip)->TranslateToSG( aParent, sp );
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return np;
}