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kicad/include/eda_units.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2020 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 EDA_UNITS_H
#define EDA_UNITS_H
#include <wx/string.h>
#include <geometry/eda_angle.h>
#include <base_units.h>
/**
* The type of unit.
*/
enum class EDA_DATA_TYPE
{
DISTANCE = 0,
AREA = 1,
VOLUME = 2
};
enum class EDA_UNITS
{
INCHES = 0,
MILLIMETRES = 1,
UNSCALED = 2,
DEGREES = 3,
PERCENT = 4,
MILS = 5,
};
namespace EDA_UNIT_UTILS
{
bool IsImperialUnit( EDA_UNITS aUnit );
bool IsMetricUnit( EDA_UNITS aUnit );
/**
* Convert mm to mils.
*/
int Mm2mils( double aVal );
/**
* Convert mils to mm.
*/
int Mils2mm( double aVal );
/**
* Writes any unit info found in the string to aUnits.
*/
void FetchUnitsFromString( const wxString& aTextValue, EDA_UNITS& aUnits );
/**
* Get the units string for a given units type.
*
* @param aUnits - The units requested.
* @param aType - The data type of the unit (e.g. distance, area, etc.)
* @return The human readable units string.
*/
wxString GetAbbreviatedUnitsLabel( EDA_UNITS aUnit, EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
/**
* Converts \a aAngle from board units to a string appropriate for writing to file.
*
* This should only be used for writing to files as it ignores locale
*
* @note Internal angles for board items can be either degrees or tenths of degree
* on how KiCad is built.
* @param aAngle A angle value to convert.
* @return std::string object containing the converted angle.
*/
std::string FormatAngle( const EDA_ANGLE& aAngle );
/**
* Converts \a aValue from internal units to a string appropriate for writing
* to file.
*
* This should only be used for writing to files as it ignores locale
*
* @note Internal units for board items can be either deci-mils or nanometers depending
* on how KiCad is built.
*
* @param aValue A coordinate value to convert.
* @return A std::string object containing the converted value.
*/
std::string FormatInternalUnits( const EDA_IU_SCALE& aIuScale, int aValue );
std::string FormatInternalUnits( const EDA_IU_SCALE& aIuScale, const wxPoint& aPoint );
std::string FormatInternalUnits( const EDA_IU_SCALE& aIuScale, const wxSize& aSize );
std::string FormatInternalUnits( const EDA_IU_SCALE& aIuScale, const VECTOR2I& aPoint );
constexpr inline int Mils2IU( const EDA_IU_SCALE& aIuScale, int mils )
{
double x = mils * aIuScale.IU_PER_MILS;
return int( x < 0 ? x - 0.5 : x + 0.5 );
}
namespace UI
{
/**
* Function To_User_Unit
* convert \a aValue in internal units to the appropriate user units defined by \a aUnit.
*
* @return The converted value, in double
* @param aUnit The units to convert \a aValue to.
* @param aValue The value in internal units to convert.
*/
double ToUserUnit( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnit, double aValue );
/**
* Function StringFromValue
* returns the string from \a aValue according to units (inch, mm ...) for display,
* and the initial unit for value.
*
* For readability, the mantissa has 3 or more digits (max 8 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.
*
* @param aUnit = display units (INCHES, MILLIMETRE ..)
* @param aValue = value in Internal_Unit
* @param aAddUnitSymbol = true to add symbol unit to the string value
* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
*/
wxString StringFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnit, double aValue,
bool aAddUnitSymbol = false,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
/**
* Function MessageTextFromValue
* is a helper to convert the \a double length \a aValue to a string in inches,
* millimeters, or unscaled units.
*
* Should be used only to display a coordinate in status, but not in dialogs,
* files, etc., because the mantissa of the number displayed has 4 digits max
* for readability. The actual internal value could need up to 8 digits to be
* printed.
*
* Use StringFromValue() instead where precision matters.
*
* @param aUnits The units to show the value in. The unit string is added to the
* message text.
* @param aValue The double value to convert.
* @param aAddUnitLabel If true, adds the unit label to the end of the string
* @param aType Type of the unit being used (e.g. distance, area, etc.)
* @return The converted string for display in user interface elements.
*/
wxString MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits, double aValue, bool aAddUnitLabel = true,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
wxString MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits, int aValue,
bool aAddUnitLabel = true,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
wxString MessageTextFromValue( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits, long long int aValue,
bool aAddUnitLabel = true,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
wxString MessageTextFromValue( EDA_ANGLE aValue, bool aAddUnitLabel = true );
/**
* Return in internal units the value "val" given in a real unit
* such as "in", "mm" or "deg"
*/
double FromUserUnit( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnit, double aValue );
/**
* Function DoubleValueFromString
* converts \a aTextValue to a double
* @warning This utilizes the current locale and will break if decimal formats differ
*
* @param aUnits The units of \a aTextValue.
* @param aTextValue A reference to a wxString object containing the string to convert.
* @return A double representing that value in internal units
*/
double DoubleValueFromString( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
const wxString& aTextValue,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
double DoubleValueFromString( const wxString& aTextValue );
/**
* Function ValueFromString
* converts \a aTextValue in \a aUnits to internal units used by the application.
* @warning This utilizes the current locale and will break if decimal formats differ
*
* @param aUnits The units of \a aTextValue.
* @param aTextValue A reference to a wxString object containing the string to convert.
* @return The string from Value, according to units (inch, mm ...) for display,
*/
long long int ValueFromString( const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
const wxString& aTextValue,
EDA_DATA_TYPE aType = EDA_DATA_TYPE::DISTANCE );
long long int ValueFromString( const wxString& aTextValue);
}
}
#endif
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