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kicad/common/eda_units.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2022 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 <eda_units.h>
#include <fmt/core.h>
#include <math/util.h> // for KiROUND
#include <macros.h>
bool EDA_UNIT_UTILS::IsImperialUnit( EDA_UNITS aUnit )
{
switch( aUnit )
{
case EDA_UNITS::INCHES:
case EDA_UNITS::MILS:
return true;
default:
return false;
}
}
bool EDA_UNIT_UTILS::IsMetricUnit( EDA_UNITS aUnit )
{
switch( aUnit )
{
case EDA_UNITS::MILLIMETRES:
return true;
default:
return false;
}
}
int EDA_UNIT_UTILS::Mm2mils( double aVal )
{
return KiROUND( aVal * 1000. / 25.4 );
}
int EDA_UNIT_UTILS::Mils2mm( double aVal )
{
return KiROUND( aVal * 25.4 / 1000. );
}
void EDA_UNIT_UTILS::FetchUnitsFromString( const wxString& aTextValue, EDA_UNITS& aUnits )
{
wxString buf( aTextValue.Strip( wxString::both ) );
unsigned brk_point = 0;
while( brk_point < buf.Len() )
{
wxChar c = buf[brk_point];
if( !( ( c >= '0' && c <= '9' ) || ( c == '.' ) || ( c == ',' ) || ( c == '-' )
|| ( c == '+' ) ) )
break;
++brk_point;
}
// Check the unit designator (2 ch significant)
wxString unit( buf.Mid( brk_point ).Strip( wxString::leading ).Left( 2 ).Lower() );
if( unit == wxT( "mm" ) )
aUnits = EDA_UNITS::MILLIMETRES;
else if( unit == wxT( "mi" ) || unit == wxT( "th" ) ) // "mils" or "thou"
aUnits = EDA_UNITS::MILS;
else if( unit == wxT( "in" ) || unit == wxT( "\"" ) )
aUnits = EDA_UNITS::INCHES;
else if( unit == wxT( "de" ) || unit == wxT( "ra" ) ) // "deg" or "rad"
aUnits = EDA_UNITS::DEGREES;
}
wxString EDA_UNIT_UTILS::GetText( EDA_UNITS aUnits, EDA_DATA_TYPE aType )
{
wxString label;
switch( aUnits )
{
case EDA_UNITS::MILLIMETRES: label = wxT( " mm" ); break;
case EDA_UNITS::DEGREES: label = wxT( "°" ); break;
case EDA_UNITS::MILS: label = wxT( " mils" ); break;
case EDA_UNITS::INCHES: label = wxT( " in" ); break;
case EDA_UNITS::PERCENT: label = wxT( "%" ); break;
case EDA_UNITS::UNSCALED: break;
default: UNIMPLEMENTED_FOR( wxS( "Unknown units" ) ); break;
}
switch( aType )
{
case EDA_DATA_TYPE::VOLUME: label += wxT( "³" ); break;
case EDA_DATA_TYPE::AREA: label += wxT( "²" ); break;
case EDA_DATA_TYPE::DISTANCE: break;
default: UNIMPLEMENTED_FOR( wxS( "Unknown measurement" ) ); break;
}
return label;
}
wxString EDA_UNIT_UTILS::GetLabel( EDA_UNITS aUnits, EDA_DATA_TYPE aType )
{
return GetText( aUnits, aType ).Trim( false );
}
std::string EDA_UNIT_UTILS::FormatAngle( const EDA_ANGLE& aAngle )
{
std::string temp = fmt::format( "{:.10g}", aAngle.AsDegrees() );
return temp;
}
std::string EDA_UNIT_UTILS::FormatInternalUnits( const EDA_IU_SCALE& aIuScale, int aValue )
{
std::string buf;
double engUnits = aValue;
engUnits /= aIuScale.IU_PER_MM;
if( engUnits != 0.0 && fabs( engUnits ) <= 0.0001 )
{
buf = fmt::format( "{:.10f}", engUnits );
// remove trailing zeros
while( !buf.empty() && buf[buf.size() - 1] == '0' )
{
buf.pop_back();
}
// if the value was really small
// we may have just stripped all the zeros after the decimal
if( buf[buf.size() - 1] == '.' )
{
buf.pop_back();
}
}
else
{
buf = fmt::format( "{:.10g}", engUnits );
}
return buf;
}
std::string EDA_UNIT_UTILS::FormatInternalUnits( const EDA_IU_SCALE& aIuScale,
const wxPoint& aPoint )
{
return FormatInternalUnits( aIuScale, aPoint.x ) + " "
+ FormatInternalUnits( aIuScale, aPoint.y );
}
std::string EDA_UNIT_UTILS::FormatInternalUnits( const EDA_IU_SCALE& aIuScale,
const VECTOR2I& aPoint )
{
return FormatInternalUnits( aIuScale, aPoint.x ) + " "
+ FormatInternalUnits( aIuScale, aPoint.y );
}
std::string EDA_UNIT_UTILS::FormatInternalUnits( const EDA_IU_SCALE& aIuScale, const wxSize& aSize )
{
return FormatInternalUnits( aIuScale, aSize.GetWidth() ) + " "
+ FormatInternalUnits( aIuScale, aSize.GetHeight() );
}
#define IU_TO_MM( x, scale ) ( x / scale.IU_PER_MM )
#define IU_TO_IN( x, scale ) ( x / scale.IU_PER_MILS / 1000 )
#define IU_TO_MILS( x, scale ) ( x / scale.IU_PER_MILS )
#define MM_TO_IU( x, scale ) ( x * scale.IU_PER_MM )
#define IN_TO_IU( x, scale ) ( x * scale.IU_PER_MILS * 1000 )
#define MILS_TO_IU( x, scale ) ( x * scale.IU_PER_MILS )
double EDA_UNIT_UTILS::UI::ToUserUnit( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnit,
double aValue )
{
switch( aUnit )
{
case EDA_UNITS::MILLIMETRES:
return IU_TO_MM( aValue, aIuScale );
case EDA_UNITS::MILS:
return IU_TO_MILS( aValue, aIuScale );
case EDA_UNITS::INCHES:
return IU_TO_IN( aValue, aIuScale );
case EDA_UNITS::DEGREES:
return aValue;
default:
return aValue;
}
}
/**
* Convert a value to a string using double notation.
*
* For readability, the mantissa has 3 or more digits,
* the trailing 0 are removed if the mantissa has more than 3 digits
* and some trailing 0
* This function should be used to display values in dialogs because a value
* entered in mm (for instance 2.0 mm) could need up to 8 digits mantissa
* if displayed in inch to avoid truncation or rounding made just by the printf function.
* otherwise the actual value is rounded when read from dialog and converted
* in internal units, and therefore modified.
*/
wxString EDA_UNIT_UTILS::UI::StringFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
double aValue, bool aAddUnitsText,
EDA_DATA_TYPE aType )
{
double value_to_print = aValue;
switch( aType )
{
case EDA_DATA_TYPE::VOLUME:
value_to_print = ToUserUnit( aIuScale, aUnits, value_to_print );
KI_FALLTHROUGH;
case EDA_DATA_TYPE::AREA:
value_to_print = ToUserUnit( aIuScale, aUnits, value_to_print );
KI_FALLTHROUGH;
case EDA_DATA_TYPE::DISTANCE:
value_to_print = ToUserUnit( aIuScale, aUnits, value_to_print );
}
char buf[50];
if( value_to_print != 0.0 && fabs( value_to_print ) <= 0.0001 )
{
int len = snprintf( buf, sizeof( buf ) - 1, "%.10f", value_to_print );
while( --len > 0 && buf[len] == '0' )
buf[len] = '\0';
if( len >= 0 && ( buf[len] == '.' || buf[len] == ',' ) )
buf[len] = '\0';
}
else
{
snprintf( buf, sizeof( buf ) - 1, "%.10g", value_to_print );
}
wxString stringValue( buf, wxConvUTF8 );
if( aAddUnitsText )
stringValue += EDA_UNIT_UTILS::GetText( aUnits, aType );
return stringValue;
}
/**
* Convert a value to a string using double notation.
*
* For readability, the mantissa has 0, 1, 3 or 4 digits, depending on units
* for unit = inch the mantissa has 3 digits (Eeschema) or 4 digits
* for unit = mil the mantissa has 0 digits (Eeschema) or 1 digits
* for unit = mm the mantissa has 3 digits (Eeschema) or 4 digits
* Should be used only to display info in status,
* but not in dialogs, because 4 digits only
* could truncate the actual value
*/
// A lower-precision (for readability) version of StringFromValue()
wxString EDA_UNIT_UTILS::UI::MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
int aValue,
bool aAddUnitLabel,
EDA_DATA_TYPE aType )
{
return MessageTextFromValue( aIuScale, aUnits, double( aValue ), aAddUnitLabel, aType );
}
// A lower-precision (for readability) version of StringFromValue()
wxString EDA_UNIT_UTILS::UI::MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
long long int aValue,
bool aAddUnitLabel,
EDA_DATA_TYPE aType )
{
return MessageTextFromValue( aIuScale, aUnits, double( aValue ), aAddUnitLabel, aType );
}
wxString EDA_UNIT_UTILS::UI::MessageTextFromValue( EDA_ANGLE aValue, bool aAddUnitLabel )
{
if( aAddUnitLabel )
return wxString::Format( wxT( "%.1f°" ), aValue.AsDegrees() );
else
return wxString::Format( wxT( "%.1f" ), aValue.AsDegrees() );
}
// A lower-precision (for readability) version of StringFromValue()
wxString EDA_UNIT_UTILS::UI::MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
double aValue, bool aAddUnitsText,
EDA_DATA_TYPE aType )
{
wxString text;
const wxChar* format;
double value = aValue;
switch( aType )
{
case EDA_DATA_TYPE::VOLUME:
value = ToUserUnit( aIuScale, aUnits, value );
// Fall through to continue computation
KI_FALLTHROUGH;
case EDA_DATA_TYPE::AREA:
value = ToUserUnit( aIuScale, aUnits, value );
// Fall through to continue computation
KI_FALLTHROUGH;
case EDA_DATA_TYPE::DISTANCE:
value = ToUserUnit( aIuScale, aUnits, value );
}
switch( aUnits )
{
default:
case EDA_UNITS::MILLIMETRES:
#if defined( EESCHEMA )
format = wxT( "%.2f" );
#else
format = wxT( "%.4f" );
#endif
break;
case EDA_UNITS::MILS:
#if defined( EESCHEMA )
format = wxT( "%.0f" );
#else
format = wxT( "%.2f" );
#endif
break;
case EDA_UNITS::INCHES:
#if defined( EESCHEMA )
format = wxT( "%.3f" );
#else
format = wxT( "%.4f" );
#endif
break;
case EDA_UNITS::DEGREES:
// 3 digits in mantissa should be good for rotation in degree
format = wxT( "%.3f" );
break;
case EDA_UNITS::UNSCALED:
format = wxT( "%.0f" );
break;
}
text.Printf( format, value );
if( aAddUnitsText )
text += EDA_UNIT_UTILS::GetText( aUnits, aType );
return text;
}
double EDA_UNIT_UTILS::UI::FromUserUnit( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
double aValue )
{
switch( aUnits )
{
case EDA_UNITS::MILLIMETRES:
return MM_TO_IU( aValue, aIuScale );
case EDA_UNITS::MILS:
return MILS_TO_IU( aValue, aIuScale );
case EDA_UNITS::INCHES:
return IN_TO_IU( aValue, aIuScale );
default:
case EDA_UNITS::DEGREES:
case EDA_UNITS::UNSCALED:
case EDA_UNITS::PERCENT:
return aValue;
}
}
double EDA_UNIT_UTILS::UI::DoubleValueFromString( const wxString& aTextValue )
{
double dtmp = 0;
// Acquire the 'right' decimal point separator
const struct lconv* lc = localeconv();
wxChar decimal_point = lc->decimal_point[0];
wxString buf( aTextValue.Strip( wxString::both ) );
// Convert any entered decimal point separators to the 'right' one
buf.Replace( wxT( "." ), wxString( decimal_point, 1 ) );
buf.Replace( wxT( "," ), wxString( decimal_point, 1 ) );
// Find the end of the numeric part
unsigned brk_point = 0;
while( brk_point < buf.Len() )
{
wxChar ch = buf[brk_point];
if( !( ( ch >= '0' && ch <= '9' ) || ( ch == decimal_point ) || ( ch == '-' )
|| ( ch == '+' ) ) )
{
break;
}
++brk_point;
}
// Extract the numeric part
buf.Left( brk_point ).ToDouble( &dtmp );
return dtmp;
}
double EDA_UNIT_UTILS::UI::DoubleValueFromString( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
const wxString& aTextValue, EDA_DATA_TYPE aType )
{
double dtmp = 0;
// Acquire the 'right' decimal point separator
const struct lconv* lc = localeconv();
wxChar decimal_point = lc->decimal_point[0];
wxString buf( aTextValue.Strip( wxString::both ) );
// Convert any entered decimal point separators to the 'right' one
buf.Replace( wxT( "." ), wxString( decimal_point, 1 ) );
buf.Replace( wxT( "," ), wxString( decimal_point, 1 ) );
// Find the end of the numeric part
unsigned brk_point = 0;
while( brk_point < buf.Len() )
{
wxChar ch = buf[brk_point];
if( !( (ch >= '0' && ch <= '9') || (ch == decimal_point) || (ch == '-') || (ch == '+') ) )
break;
++brk_point;
}
// Extract the numeric part
buf.Left( brk_point ).ToDouble( &dtmp );
// Check the optional unit designator (2 ch significant)
wxString unit( buf.Mid( brk_point ).Strip( wxString::leading ).Left( 2 ).Lower() );
if( aUnits == EDA_UNITS::MILLIMETRES
|| aUnits == EDA_UNITS::MILS
|| aUnits == EDA_UNITS::INCHES )
{
if( unit == wxT( "mm" ) )
{
aUnits = EDA_UNITS::MILLIMETRES;
}
else if( unit == wxT( "mi" ) || unit == wxT( "th" ) )
{
aUnits = EDA_UNITS::MILS;
}
else if( unit == wxT( "in" ) || unit == wxT( "\"" ) )
{
aUnits = EDA_UNITS::INCHES;
}
else if( unit == wxT( "oz" ) ) // 1 oz = 1.37 mils
{
aUnits = EDA_UNITS::MILS;
dtmp *= 1.37;
}
}
else if( aUnits == EDA_UNITS::DEGREES )
{
if( unit == wxT( "ra" ) ) // Radians
dtmp *= 180.0f / M_PI;
}
switch( aType )
{
case EDA_DATA_TYPE::VOLUME:
dtmp = FromUserUnit( aIuScale, aUnits, dtmp );
KI_FALLTHROUGH;
case EDA_DATA_TYPE::AREA:
dtmp = FromUserUnit( aIuScale, aUnits, dtmp );
KI_FALLTHROUGH;
case EDA_DATA_TYPE::DISTANCE:
dtmp = FromUserUnit( aIuScale, aUnits, dtmp );
}
return dtmp;
}
long long int EDA_UNIT_UTILS::UI::ValueFromString( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
const wxString& aTextValue, EDA_DATA_TYPE aType )
{
double value = DoubleValueFromString( aIuScale, aUnits, aTextValue, aType );
return KiROUND<double, long long int>( value );
}
long long int EDA_UNIT_UTILS::UI::ValueFromString( const wxString& aTextValue )
{
double value = DoubleValueFromString( aTextValue );
return KiROUND<double, long long int>( value );
}
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