kicad-source/include/units_provider.h
2025-04-27 13:35:36 -07:00

256 lines
10 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright The 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
*/
#ifndef UNITS_PROVIDER_H
#define UNITS_PROVIDER_H
#include <eda_units.h>
#include <origin_transforms.h>
#include <core/minoptmax.h>
#include <optional>
#include <utility>
class UNITS_PROVIDER
{
public:
UNITS_PROVIDER( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits ) :
m_iuScale( aIuScale ),
m_userUnits( aUnits )
{}
virtual ~UNITS_PROVIDER()
{}
EDA_UNITS GetUserUnits() const { return m_userUnits; }
void SetUserUnits( EDA_UNITS aUnits ) { m_userUnits = aUnits; }
virtual void GetUnitPair( EDA_UNITS& aPrimaryUnit, EDA_UNITS& aSecondaryUnits )
{
aPrimaryUnit = GetUserUnits();
aSecondaryUnits = EDA_UNIT_UTILS::IsImperialUnit( aPrimaryUnit ) ? EDA_UNITS::MM
: EDA_UNITS::MILS;
}
const EDA_IU_SCALE& GetIuScale() const { return m_iuScale; }
// No SetIuScale(); scale is invariant
virtual ORIGIN_TRANSFORMS& GetOriginTransforms()
{
static ORIGIN_TRANSFORMS identityTransform;
return identityTransform;
}
/**
* Converts \a aValue in internal units into a united string.
*
* For readability, trailing 0s are removed if the mantissa has 3 or more digits.
* 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.
*
* @param aValue = value in internal units
* @param aAddUnitLabel = true to add symbol unit to the string value
* @param aType is the type of this value, and controls the way the value is converted
* to a string, and the suitable unit
* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
*/
wxString StringFromValue( double aValue, bool aAddUnitLabel = false,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
return EDA_UNIT_UTILS::UI::StringFromValue( GetIuScale(), GetUnitsFromType( aType ), aValue,
aAddUnitLabel, aType );
}
/**
* Converts an optional \a aValue in internal units into a united string.
*
* For readability, trailing 0s are removed if the mantissa has 3 or more digits.
* 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.
*
* @param aValue = optional value in internal units
* @param aAddUnitLabel = true to add symbol unit to the string value
* @param aType is the type of this value, and controls the way the value is converted
* to a string, and the suitable unit
* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
*/
wxString StringFromOptionalValue( std::optional<int> aValue, bool aAddUnitLabel = false,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
if( !aValue )
return NullUiString;
else
return EDA_UNIT_UTILS::UI::StringFromValue( GetIuScale(), GetUnitsFromType( aType ),
aValue.value(), aAddUnitLabel, aType );
}
wxString StringFromValue( const EDA_ANGLE& aValue, bool aAddUnitLabel = false ) const
{
return EDA_UNIT_UTILS::UI::StringFromValue( unityScale, EDA_UNITS::DEGREES,
aValue.AsDegrees(), aAddUnitLabel,
EDA_DATA_TYPE::DISTANCE );
}
/**
* A lower-precision version of StringFromValue().
*
* Should ONLY be used for status text and messages. Not suitable for dialogs, files, etc.
* where the loss of precision matters.
*/
wxString MessageTextFromValue( double aValue, bool aAddUnitLabel = true,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
return EDA_UNIT_UTILS::UI::MessageTextFromValue( GetIuScale(), GetUnitsFromType( aType ),
aValue, aAddUnitLabel, aType );
}
wxString MessageTextFromValue( const EDA_ANGLE& aValue, bool aAddUnitLabel = true ) const
{
return EDA_UNIT_UTILS::UI::MessageTextFromValue( unityScale, EDA_UNITS::DEGREES,
aValue.AsDegrees(), aAddUnitLabel,
EDA_DATA_TYPE::DISTANCE );
}
wxString MessageTextFromMinOptMax( const MINOPTMAX<int>& aValue,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
return EDA_UNIT_UTILS::UI::MessageTextFromMinOptMax( GetIuScale(), GetUnitsFromType( aType ), aValue );
};
/**
* Converts \a aTextValue in \a aUnits to internal units used by the frame.
* @warning This utilizes the current locale and will break if decimal formats differ
* @param aType is the type of this value, and controls the way the string is converted
* to a value
*
* @param aTextValue A reference to a wxString object containing the string to convert.
* @return internal units value
*/
int ValueFromString( const wxString& aTextValue,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
double value = EDA_UNIT_UTILS::UI::DoubleValueFromString(
GetIuScale(), GetUnitsFromType( aType ), aTextValue, aType );
return KiROUND<double, int>( value );
}
/**
* Converts \a aTextValue in \a aUnits to internal units used by the frame. Allows the return
* of an empty optional if the string represents a null value (currently empty string)
* @warning This utilizes the current locale and will break if decimal formats differ
* @param aType is the type of this value, and controls the way the string is converted
* to a value
*
* @param aTextValue A reference to a wxString object containing the string to convert.
* @return internal units value
*/
std::optional<int>
OptionalValueFromString( const wxString& aTextValue,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE ) const
{
// Handle null (empty) values
if( aTextValue == NullUiString )
return {};
double value = EDA_UNIT_UTILS::UI::DoubleValueFromString(
GetIuScale(), GetUnitsFromType( aType ), aTextValue, aType );
return KiROUND<double, int>( value );
}
EDA_ANGLE AngleValueFromString( const wxString& aTextValue ) const
{
double angle = EDA_UNIT_UTILS::UI::DoubleValueFromString( GetIuScale(), EDA_UNITS::DEGREES,
aTextValue );
return EDA_ANGLE( angle, DEGREES_T );
}
/**
* Gets the units to use in the conversion based on the underlying user units
*/
EDA_UNITS GetUnitsFromType( EDA_DATA_TYPE aType ) const
{
// Get the unit type depending on the requested unit type and the underlying user setting
if( aType == EDA_DATA_TYPE::TIME )
{
return EDA_UNITS::PS;
}
else if( aType == EDA_DATA_TYPE::LENGTH_DELAY )
{
if( EDA_UNIT_UTILS::IsMetricUnit( GetUserUnits() ) )
return EDA_UNITS::PS_PER_CM;
else
return EDA_UNITS::PS_PER_INCH;
}
return GetUserUnits();
}
/**
* Gets the inferred type from the given units. Note: will always return the most simple
* type (e.g. a DISTANCE rather than AREA or VOLUME for a measurement unit).
*/
static EDA_DATA_TYPE GetTypeFromUnits( const EDA_UNITS aUnits )
{
switch( aUnits )
{
case EDA_UNITS::INCH:
case EDA_UNITS::MM:
case EDA_UNITS::UM:
case EDA_UNITS::CM:
case EDA_UNITS::MILS:
return EDA_DATA_TYPE::DISTANCE;
case EDA_UNITS::DEGREES:
case EDA_UNITS::PERCENT:
case EDA_UNITS::UNSCALED:
return EDA_DATA_TYPE::UNITLESS;
case EDA_UNITS::FS:
case EDA_UNITS::PS:
return EDA_DATA_TYPE::TIME;
case EDA_UNITS::PS_PER_INCH:
case EDA_UNITS::PS_PER_CM:
case EDA_UNITS::PS_PER_MM:
return EDA_DATA_TYPE::LENGTH_DELAY;
}
wxString msg = wxString::Format( wxT( "Unhandled unit data type %d" ), static_cast<int>( aUnits ) );
wxCHECK_MSG( false, EDA_DATA_TYPE::UNITLESS, msg );
return EDA_DATA_TYPE::UNITLESS; // Note that this is unreachable but g++-12 doesn't know that.
}
/// @brief The string that is used in the UI to represent a null value
static inline const wxString NullUiString = "";
private:
const EDA_IU_SCALE& m_iuScale;
EDA_UNITS m_userUnits;
};
#endif // UNITS_PROVIDER_H