kicad/include/base_units.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 CERN
* Copyright (C) 1992-2011 KiCad Developers, see change_log.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 <common.h>
#include <convert_to_biu.h>
/**
* 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.
*/
double To_User_Unit( EDA_UNITS_T aUnit, double aValue );
/**
* Function CoordinateToString
* is a helper to convert the \a integer coordinate \a aValue to a string in inches,
* millimeters, or unscaled units according to the current user units setting.
*
* Should be used only to display a coordinate in status, but not in dialogs,
* because the mantissa of the number displayed has 4 digits max for readability.
* (i.e. the value shows the decimils or the microns )
* However the actual internal value could need up to 8 digits to be printed
*
* @param aValue The integer coordinate to convert.
* @param aConvertToMils Convert inch values to mils if true. This setting has no effect if
* the current user unit is millimeters.
* @return The converted string for display in user interface elements.
*/
wxString CoordinateToString( int aValue, bool aConvertToMils = false );
/**
* Function LenghtDoubleToString
* is a helper to convert the \a double length \a aValue to a string in inches,
* millimeters, or unscaled units according to the current user units setting.
*
* Should be used only to display a coordinate in status, but not in dialogs,
* because the mantissa of the number displayed has 4 digits max for readability.
* (i.e. the value shows the decimils or the microns )
* However the actual internal value could need up to 8 digits to be printed
*
* @param aValue The double value to convert.
* @param aConvertToMils Convert inch values to mils if true. This setting has no effect if
* the current user unit is millimeters.
* @return The converted string for display in user interface elements.
*/
wxString LengthDoubleToString( double aValue, bool aConvertToMils = false );
/**
* Function ReturnStringFromValue
* 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 ReturnStringFromValue( EDA_UNITS_T aUnit, int aValue, bool aAddUnitSymbol = false );
/**
* Operator << overload
* outputs a point to the argument string in a format resembling
* "@ (x,y)
* @param aString Where to put the text describing the point value
* @param aPoint The point to output.
* @return wxString& - the input string
*/
wxString& operator <<( wxString& aString, const wxPoint& aPoint );
/**
* Function PutValueInLocalUnits
* converts \a aValue from internal units to user units and append the units notation
* (mm or ")then inserts the string an \a aTextCtrl.
*
* This function is used in dialog boxes for entering values depending on selected units.
*/
void PutValueInLocalUnits( wxTextCtrl& aTextCtr, int aValue );
/**
* Return in internal units the value "val" given in inch or mm
*/
double From_User_Unit( EDA_UNITS_T aUnit, double aValue );
/**
* Function ReturnValueFromString
* 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.
* @return The string from Value, according to units (inch, mm ...) for display,
*/
int ReturnValueFromString( EDA_UNITS_T aUnits, const wxString& aTextValue );
/**
* Function ReturnValueFromString
* converts \a aTextValue in \a aUnits to internal units used by the application,
* unit type will be obtained from g_UserUnit.
*
* @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,
*/
int ReturnValueFromString( const wxString& aTextValue );
/**
* Convert the number Value in a string according to the internal units
* and the selected unit (g_UserUnit) and put it in the wxTextCtrl TextCtrl
*/
int ReturnValueFromTextCtrl( const wxTextCtrl& aTextCtr );
#endif // _BASE_UNITS_H_