344 lines
10 KiB
C++
344 lines
10 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2019-2020 Thomas Pointhuber <thomas.pointhuber@gmx.at>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "altium_parser.h"
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#include "altium_parser_utils.h"
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#include <compoundfilereader.h>
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#include <ki_exception.h>
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#include <math/util.h>
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#include <numeric>
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#include <sstream>
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#include <utf.h>
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#include <wx/log.h>
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#include <wx/translation.h>
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// Helper for debug logging
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std::string FormatPath( const std::vector<std::string>& aVectorPath )
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{
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return std::accumulate( aVectorPath.cbegin(), aVectorPath.cend(), std::string(),
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[]( const std::string& ss, const std::string& s )
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{
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return ss.empty() ? s : ss + '\\' + s;
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} );
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}
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ALTIUM_COMPOUND_FILE::ALTIUM_COMPOUND_FILE( const wxString& aFilePath )
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{
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// Open file
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FILE* fp = wxFopen( aFilePath, "rb" );
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if( fp == nullptr )
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{
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THROW_IO_ERROR( wxString::Format( _( "Cannot open file '%s'." ), aFilePath ) );
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}
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fseek( fp, 0, SEEK_END );
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long len = ftell( fp );
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if( len < 0 )
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{
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fclose( fp );
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THROW_IO_ERROR( _( "Error reading file: cannot determine length." ) );
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}
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// Read into buffer (TODO: add support for memory-mapped files to avoid this copy!)
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m_buffer.resize( len );
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fseek( fp, 0, SEEK_SET );
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size_t bytesRead = fread( m_buffer.data(), sizeof( unsigned char ), len, fp );
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fclose( fp );
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if( static_cast<size_t>( len ) != bytesRead )
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{
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THROW_IO_ERROR( _( "Error reading file." ) );
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}
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try
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{
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m_reader = std::make_unique<CFB::CompoundFileReader>( m_buffer.data(), m_buffer.size() );
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}
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catch( CFB::CFBException& exception )
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{
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THROW_IO_ERROR( exception.what() );
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}
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}
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static const CFB::COMPOUND_FILE_ENTRY*
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FindStreamSingleLevel( const CFB::CompoundFileReader& aReader,
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const CFB::COMPOUND_FILE_ENTRY* aEntry, const std::string aName,
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const bool aIsStream )
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{
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const CFB::COMPOUND_FILE_ENTRY* ret = nullptr;
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aReader.EnumFiles( aEntry, 1,
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[&]( const CFB::COMPOUND_FILE_ENTRY* entry, const CFB::utf16string& dir,
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int level ) -> void
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{
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if( aReader.IsStream( entry ) == aIsStream )
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{
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std::string name = UTF16ToUTF8( entry->name );
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if( name == aName.c_str() )
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{
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ret = entry;
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}
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}
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} );
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return ret;
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}
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const CFB::COMPOUND_FILE_ENTRY*
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ALTIUM_COMPOUND_FILE::FindStream( const std::vector<std::string>& aStreamPath ) const
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{
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if( !m_reader )
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{
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return nullptr;
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}
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const CFB::COMPOUND_FILE_ENTRY* currentDirEntry = m_reader->GetRootEntry();
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auto it = aStreamPath.cbegin();
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while( currentDirEntry != nullptr )
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{
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const std::string& name = *it;
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if( ++it == aStreamPath.cend() )
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{
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return FindStreamSingleLevel( *m_reader.get(), currentDirEntry, name, true );
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}
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else
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{
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currentDirEntry =
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FindStreamSingleLevel( *m_reader.get(), currentDirEntry, name, false );
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}
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}
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return nullptr;
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}
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ALTIUM_PARSER::ALTIUM_PARSER( const ALTIUM_COMPOUND_FILE& aFile,
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const CFB::COMPOUND_FILE_ENTRY* aEntry )
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{
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m_subrecord_end = nullptr;
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m_size = static_cast<size_t>( aEntry->size );
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m_error = false;
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m_content.reset( new char[m_size] );
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m_pos = m_content.get();
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// read file into buffer
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aFile.GetCompoundFileReader().ReadFile( aEntry, 0, m_content.get(), m_size );
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}
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ALTIUM_PARSER::ALTIUM_PARSER( std::unique_ptr<char[]>& aContent, size_t aSize )
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{
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m_subrecord_end = nullptr;
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m_size = aSize;
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m_error = false;
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m_content = std::move( aContent );
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m_pos = m_content.get();
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}
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std::map<wxString, wxString> ALTIUM_PARSER::ReadProperties()
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{
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std::map<wxString, wxString> kv;
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uint32_t length = Read<uint32_t>();
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if( length > GetRemainingBytes() )
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{
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m_error = true;
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return kv;
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}
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if( length == 0 )
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{
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return kv;
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}
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// There is one case by kliment where Board6 ends with "|NEARDISTANCE=1000mi".
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// Both the 'l' and the null-byte are missing, which looks like Altium swallowed two bytes.
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bool hasNullByte = m_pos[length - 1] == '\0';
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if( !hasNullByte )
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{
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wxLogError( _( "Missing null byte at end of property list. Imported data might be "
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"malformed or missing." ) );
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}
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// we use std::string because std::string can handle NULL-bytes
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// wxString would end the string at the first NULL-byte
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std::string str = std::string( m_pos, length - ( hasNullByte ? 1 : 0 ) );
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m_pos += length;
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std::size_t token_end = 0;
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while( token_end < str.size() && token_end != std::string::npos )
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{
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std::size_t token_start = str.find( '|', token_end );
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std::size_t token_equal = str.find( '=', token_start );
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token_end = str.find( '|', token_start + 1 );
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if( token_equal >= token_end )
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{
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continue; // this looks like an error: skip the entry. Also matches on std::string::npos
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}
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if( token_end == std::string::npos )
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{
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token_end = str.size() + 1; // this is the correct offset
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}
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std::string keyS = str.substr( token_start + 1, token_equal - token_start - 1 );
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std::string valueS = str.substr( token_equal + 1, token_end - token_equal - 1 );
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// convert the strings to wxStrings, since we use them everywhere
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// value can have non-ASCII characters, so we convert them from LATIN1/ISO8859-1
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wxString key( keyS.c_str(), wxConvISO8859_1 );
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// Altium stores keys either in Upper, or in CamelCase. Lets unify it.
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wxString canonicalKey = key.Trim( false ).Trim( true ).MakeUpper();
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// If the key starts with '%UTF8%' we have to parse the value using UTF8
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wxString value;
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if( canonicalKey.StartsWith( "%UTF8%" ) )
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value = wxString( valueS.c_str(), wxConvUTF8 );
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else
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value = wxString( valueS.c_str(), wxConvISO8859_1 );
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// Breathless hack because I haven't a clue what the story is here (but this character
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// appears in a lot of radial dimensions and is rendered by Altium as a space).
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value.Replace( wxT( "ÿ" ), wxT( " " ) );
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if( canonicalKey == wxT( "DESIGNATOR" )
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|| canonicalKey == wxT( "NAME" )
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|| canonicalKey == wxT( "TEXT" ) )
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{
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value = AltiumPropertyToKiCadString( value.Trim() );
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}
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kv.insert( { canonicalKey, value.Trim() } );
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}
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return kv;
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}
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int32_t ALTIUM_PARSER::ConvertToKicadUnit( const double aValue )
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{
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constexpr double int_limit = ( std::numeric_limits<int>::max() - 10 ) / 2.54;
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int32_t iu = KiROUND( Clamp<double>( -int_limit, aValue, int_limit ) * 2.54 );
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// Altium's internal precision is 0.1uinch. KiCad's is 1nm. Round to nearest 10nm to clean
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// up most rounding errors. This allows lossless conversion of increments of 0.05mils and
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// 0.01um.
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return KiROUND( (double) iu / 10.0 ) * 10;
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}
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int ALTIUM_PARSER::ReadInt( const std::map<wxString, wxString>& aProps, const wxString& aKey,
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int aDefault )
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{
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const std::map<wxString, wxString>::const_iterator& value = aProps.find( aKey );
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return value == aProps.end() ? aDefault : wxAtoi( value->second );
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}
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double ALTIUM_PARSER::ReadDouble( const std::map<wxString, wxString>& aProps, const wxString& aKey,
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double aDefault )
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{
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const std::map<wxString, wxString>::const_iterator& value = aProps.find( aKey );
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if( value == aProps.end() )
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return aDefault;
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// Locale independent str -> double conversation
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std::istringstream istr( (const char*) value->second.mb_str() );
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istr.imbue( std::locale::classic() );
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double doubleValue;
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istr >> doubleValue;
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return doubleValue;
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}
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bool ALTIUM_PARSER::ReadBool( const std::map<wxString, wxString>& aProps, const wxString& aKey,
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bool aDefault )
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{
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const std::map<wxString, wxString>::const_iterator& value = aProps.find( aKey );
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if( value == aProps.end() )
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return aDefault;
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else
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return value->second == "T" || value->second == "TRUE";
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}
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int32_t ALTIUM_PARSER::ReadKicadUnit( const std::map<wxString, wxString>& aProps,
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const wxString& aKey, const wxString& aDefault )
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{
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const wxString& value = ReadString( aProps, aKey, aDefault );
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wxString prefix;
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if( !value.EndsWith( "mil", &prefix ) )
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{
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wxLogError( _( "Unit '%s' does not end with 'mil'." ), value );
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return 0;
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}
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double mils;
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if( !prefix.ToCDouble( &mils ) )
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{
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wxLogError( _( "Cannot convert '%s' to double." ), prefix );
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return 0;
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}
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return ConvertToKicadUnit( mils * 10000 );
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}
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wxString ALTIUM_PARSER::ReadString( const std::map<wxString, wxString>& aProps,
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const wxString& aKey, const wxString& aDefault )
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{
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const auto& utf8Value = aProps.find( wxString( "%UTF8%" ) + aKey );
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if( utf8Value != aProps.end() )
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return utf8Value->second;
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const auto& value = aProps.find( aKey );
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if( value != aProps.end() )
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return value->second;
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return aDefault;
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}
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