kicad/include/base_units.h

213 lines
7.8 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 CERN
* Copyright (C) 1992-2019 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
*/
/**
* @author Wayne Stambaugh <stambaughw@verizon.net>
* @file base_units.h
* @brief Implementation of conversion functions that require both schematic and board
* internal units.
*/
#ifndef _BASE_UNITS_H_
#define _BASE_UNITS_H_
#include <string>
#include <math/vector2d.h>
#include <common.h>
#include <convert_to_biu.h>
//TODO: Abstract Base Units to a single class
/**
* Used for holding indeterminate values, such as with multiple selections
* holding different values or controls which do not wish to set a value.
*/
#define INDETERMINATE wxString( "<...>" )
/// Convert mm to mils.
inline int Mm2mils( double x ) { return KiROUND( x * 1000./25.4 ); }
/// Convert mils to mm.
inline int Mils2mm( double x ) { return KiROUND( x * 25.4 / 1000. ); }
/** Helper function Double2Str to print a float number without
* using scientific notation and no trailing 0
* We want to avoid scientific notation in S-expr files (not easy to read)
* for floating numbers.
* So we cannot always just use the %g or the %f format to print a fp number
* this helper function uses the %f format when needed, or %g when %f is
* not well working and then removes trailing 0
*/
std::string Double2Str( double aValue );
/**
* Function StripTrailingZeros
* Remove trailing 0 from a string containing a converted float number.
* The trailing 0 are removed if the mantissa has more
* than aTrailingZeroAllowed digits and some trailing 0
*/
void StripTrailingZeros( wxString& aStringValue, unsigned aTrailingZeroAllowed = 1 );
/**
* 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.
* @param aUseMils Indicates mils should be used for imperial units (inches).
*/
double To_User_Unit( EDA_UNITS_T aUnit, double aValue, bool aUseMils = false );
/**
* Function AngleToStringDegrees
* is a helper to convert the \a double \a aAngle (in internal unit)
* to a string in degrees
*/
wxString AngleToStringDegrees( double aAngle );
/**
* 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 aUseMils Convert inch values to mils if true.
* @return The converted string for display in user interface elements.
*/
wxString MessageTextFromValue( EDA_UNITS_T aUnits, double aValue, bool aUseMils = false );
wxString MessageTextFromValue( EDA_UNITS_T aUnits, int aValue, bool aUseMils = false );
/**
* 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
* @param aUseMils Indicates mils should be used for imperial units (inches).
* @return A wxString object containing value and optionally the symbol unit (like 2.000 mm)
*/
wxString StringFromValue( EDA_UNITS_T aUnit, int aValue, bool aAddUnitSymbol = false,
bool aUseMils = false );
/**
* Return in internal units the value "val" given in a real unit
* such as "in", "mm" or "deg"
*/
double From_User_Unit( EDA_UNITS_T aUnit, double aValue, bool aUseMils = false );
/**
* Function DoubleValueFromString
* converts \a aTextValue to a double
* @param aUnits The units of \a aTextValue.
* @param aTextValue A reference to a wxString object containing the string to convert.
* @param aUseMils Indicates mils should be used for imperial units (inches).
* @return A double representing that value in internal units
*/
double DoubleValueFromString( EDA_UNITS_T aUnits, const wxString& aTextValue,
bool aUseMils = false );
/**
* Function ValueFromString
* converts \a aTextValue in \a aUnits to internal units used by the application.
*
* @param aUnits The units of \a aTextValue.
* @param aTextValue A reference to a wxString object containing the string to convert.
* @param aUseMils Indicates mils should be used for imperial units (inches).
* @return The string from Value, according to units (inch, mm ...) for display,
*/
int ValueFromString( EDA_UNITS_T aUnits, const wxString& aTextValue, bool aUseMils = false );
/**
* Function FetchUnitsFromString
* writes any unit info found in the string to aUnits and aUseMils.
*/
void FetchUnitsFromString( const wxString& aTextValue, EDA_UNITS_T& aUnits, bool& aUseMils );
/**
* Get the units string for a given units type.
*
* @param aUnits - The units requested.
* @return The human readable units string.
*/
wxString GetAbbreviatedUnitsLabel( EDA_UNITS_T aUnit, bool aUseMils = false );
/**
* Function FormatInternalUnits
* converts \a aValue from internal units to a string appropriate for writing
* to file.
*
* @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( int aValue );
/**
* Function FormatAngle
* converts \a aAngle from board units to a string appropriate for writing to file.
*
* @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 A std::string object containing the converted angle.
*/
std::string FormatAngle( double aAngle );
std::string FormatInternalUnits( const wxPoint& aPoint );
std::string FormatInternalUnits( const wxSize& aSize );
std::string FormatInternalUnits( const VECTOR2I& aPoint );
#endif // _BASE_UNITS_H_