kicad/common/array_axis.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019 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 <array_axis.h>
/**
* @return False for schemes like 0,1...9,10
* True for schemes like A,B..Z,AA (where the tens column starts with char 0)
*/
static bool schemeNonUnitColsStartAt0( ARRAY_AXIS::NUMBERING_TYPE type )
{
return type == ARRAY_AXIS::NUMBERING_TYPE::NUMBERING_ALPHA_FULL
|| type == ARRAY_AXIS::NUMBERING_TYPE::NUMBERING_ALPHA_NO_IOSQXZ;
}
ARRAY_AXIS::ARRAY_AXIS() : m_type( NUMBERING_TYPE::NUMBERING_NUMERIC ), m_offset( 0 ), m_step( 1 )
{
}
const wxString& ARRAY_AXIS::GetAlphabet() const
{
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static const wxString alphaNumeric = wxS( "0123456789" );
static const wxString alphaHex = wxS( "0123456789ABCDEF" );
static const wxString alphaFull = wxS( "ABCDEFGHIJKLMNOPQRSTUVWXYZ" );
static const wxString alphaNoIOSQXZ = wxS( "ABCDEFGHJKLMNPRTUVWY" );
switch( m_type )
{
default:
case NUMBERING_NUMERIC:
return alphaNumeric;
case NUMBERING_HEX:
return alphaHex;
case NUMBERING_ALPHA_NO_IOSQXZ:
return alphaNoIOSQXZ;
case NUMBERING_ALPHA_FULL:
return alphaFull;
}
}
std::optional<int> ARRAY_AXIS::getNumberingOffset( const wxString& str ) const
{
if( str.length() == 0 )
return std::optional<int>{};
const wxString& alphabet = GetAlphabet();
int offset = 0;
const int radix = alphabet.length();
for( unsigned i = 0; i < str.length(); i++ )
{
int chIndex = alphabet.Find( str[i], false );
if( chIndex == wxNOT_FOUND )
return std::optional<int>{};
const bool start0 = schemeNonUnitColsStartAt0( m_type );
// eg "AA" is actually index 27, not 26
if( start0 && i < str.length() - 1 )
chIndex++;
offset *= radix;
offset += chIndex;
}
return std::optional<int>{ offset };
}
void ARRAY_AXIS::SetAxisType( NUMBERING_TYPE aType )
{
m_type = aType;
}
bool ARRAY_AXIS::SetOffset( const wxString& aOffsetName )
{
std::optional<int> offset = getNumberingOffset( aOffsetName );
// The string does not decode to a valid offset
if( !offset )
return false;
SetOffset( *offset );
return true;
}
void ARRAY_AXIS::SetOffset( int aOffset )
{
m_offset = aOffset;
}
int ARRAY_AXIS::GetOffset() const
{
return m_offset;
}
void ARRAY_AXIS::SetStep( int aStep )
{
m_step = aStep;
}
wxString ARRAY_AXIS::GetItemNumber( int n ) const
{
wxString itemNum;
const wxString& alphabet = GetAlphabet();
const bool nonUnitColsStartAt0 = schemeNonUnitColsStartAt0( m_type );
bool firstRound = true;
int radix = alphabet.Length();
n = m_offset + m_step * n;
do
{
int modN = n % radix;
if( nonUnitColsStartAt0 && !firstRound )
modN--; // Start the "tens/hundreds/etc column" at "Ax", not "Bx"
itemNum.insert( 0, 1, alphabet[modN] );
n /= radix;
firstRound = false;
} while( n );
return itemNum;
}