altium_parser_utils.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2021 Thomas Pointhuber <[email protected]>
 * 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 "altium_parser_utils.h"
 
#include <string_utils.h>
#include <lib_id.h>
#include <trigo.h>
#include <math/util.h>
 
LIB_ID AltiumToKiCadLibID( const wxString& aLibName, const wxString& aLibReference )
{
 wxString libName = LIB_ID::FixIllegalChars( aLibName, true );
 wxString libReference = EscapeString( aLibReference, CTX_LIBID );
 
 wxString key = !libName.empty() ? ( libName + ":" + libReference ) : libReference;
 
 LIB_ID libId;
 libId.Parse( key, true );
 
 return libId;
}
 
 
wxString AltiumPropertyToKiCadString( const wxString& aString )
{
 wxString converted;
 bool inOverbar = false;
 
 for( wxString::const_iterator chIt = aString.begin(); chIt != aString.end(); ++chIt )
 {
 wxString::const_iterator lookahead = chIt + 1;
 
 if( lookahead != aString.end() && *lookahead == '\\' )
 {
 if( !inOverbar )
 {
 converted += "~{";
 inOverbar = true;
 }
 
 converted += *chIt;
 chIt = lookahead;
 }
 else
 {
 if( inOverbar )
 {
 converted += "}";
 inOverbar = false;
 }
 
 converted += *chIt;
 }
 }
 
 if( inOverbar )
 converted += "}";
 
 return converted;
}
 
 
// https://www.altium.com/documentation/altium-designer/sch-obj-textstringtext-string-ad#!special-strings
wxString AltiumSpecialStringsToKiCadVariables( const wxString& aString,
 const std::map<wxString, wxString>& aOverrides )
{
 if( aString.IsEmpty() || aString.at( 0 ) != '=' )
 {
 return aString;
 }
 
 wxString result;
 
 size_t start = 1;
 size_t delimiter = 0;
 size_t escaping_start = 0;
 do
 {
 delimiter = aString.find( "+", start );
 escaping_start = aString.find( "'", start );
 
 if( escaping_start < delimiter )
 {
 size_t text_start = escaping_start + 1;
 size_t escaping_end = aString.find( "'", text_start );
 
 if( escaping_end == wxString::npos )
 {
 escaping_end = aString.size();
 }
 
 result += aString.substr( text_start, escaping_end - text_start );
 
 start = escaping_end + 1;
 }
 else
 {
 wxString specialString = aString.substr( start, delimiter - start ).Trim().Trim( false );
 
 if( specialString.StartsWith( "\"" ) && specialString.EndsWith( "\"" ) )
 specialString = specialString.Mid( 1, specialString.Length() - 2 );
 
 if( !specialString.IsEmpty() )
 {
 // Note: Altium variable references are case-insensitive. KiCad matches
 // case-sensitive OR to all-upper-case, so make the references all-upper-case.
 specialString.UpperCase();
 
 auto overrideIt = aOverrides.find( specialString );
 
 if( overrideIt != aOverrides.end() )
 specialString = overrideIt->second;
 
 result += wxString::Format( wxT( "${%s}" ), specialString );
 }
 
 start = delimiter + 1;
 }
 } while( delimiter != wxString::npos );
 
 return result;
}
 
wxString AltiumPinNamesToKiCad( wxString& aString )
{
 wxString output;
 wxString tempString;
 bool hasPrev = false;
 wxUniChar prev;
 
 
 for( wxString::const_iterator it = aString.begin(); it != aString.end(); ++it )
 {
 char ch = 0;
 
 if( (*it).GetAsChar( &ch ) )
 {
 if( ch == '\\' )
 {
 if( hasPrev )
 {
 tempString += prev;
 hasPrev = false;
 }
 
 continue; // Backslash is ignored and not added to the output
 }
 }
 
 if( hasPrev ) // Two letters in a row with no backslash
 {
 if( !tempString.empty() )
 {
 output += "~{" + tempString + "}";
 tempString.Clear();
 }
 
 output += prev;
 }
 
 prev = *it;
 hasPrev = true;
 }
 
 // Append any leftover escaped string
 if( !tempString.IsEmpty() )
 {
 output += "~{" + tempString + "}";
 }
 
 if( hasPrev )
 {
 output += prev;
 }
 
 return output;
}
 
VECTOR2I AltiumGetEllipticalPos( double aMajor, double aMinor, double aAngleRadians )
{
 if( aMajor == 0 || aMinor == 0 )
 return VECTOR2I( 0, 0 );
 
 double numerator = aMajor * aMinor;
 double majorTerm = aMajor * sin( aAngleRadians );
 double minorTerm = aMinor * cos( aAngleRadians );
 double denominator = sqrt( majorTerm * majorTerm + minorTerm * minorTerm );
 
 double radius = numerator / denominator;
 
 VECTOR2I retval( KiROUND( radius * cos( aAngleRadians ) ), KiROUND( radius * sin( aAngleRadians ) ) );
 
 return retval;
 
}