libs-base/Source/NSLengthFormatter.m

/* Implementation of class NSLengthFormatter
   Copyright (C) 2019 Free Software Foundation, Inc.
   
   By: Gregory John Casamento <greg.casamento@gmail.com>
   Date: Tue Oct  8 13:30:33 EDT 2019

   This file is part of the GNUstep Library.
   
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library 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
   Lesser General Public License for more details.
   
   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.
*/

#import "Foundation/NSLengthFormatter.h"
#import "Foundation/NSMeasurement.h"
#import "Foundation/NSMeasurementFormatter.h"
#import "Foundation/NSNumberFormatter.h"
#import "Foundation/NSUnit.h"

@implementation NSLengthFormatter

- (instancetype) init
{
  self = [super init];
  if(self != nil)
    {
      _numberFormatter = nil;
      _unitStyle = NSFormattingUnitStyleMedium;
      _isForPersonHeightUse = NO;
    }
  return self;
}

- (void) dealloc
{
  RELEASE(_numberFormatter);
  [super dealloc];
}

- (NSNumberFormatter *) numberFormatter
{
  return _numberFormatter;
}

- (void) setNumberFormatter: (NSNumberFormatter *)formatter
{
  ASSIGN(_numberFormatter, formatter);
}

- (NSFormattingUnitStyle) unitStyle
{
  return _unitStyle;
}

- (void) setUnitStyle: (NSFormattingUnitStyle)style
{
  _unitStyle = style;
}
  
- (BOOL) isForPersonHeightUse
{
  return _isForPersonHeightUse;
}

- (void) setForPersonHeightUse: (BOOL)flag
{
  _isForPersonHeightUse = flag;
}
  
- (NSString *) stringFromValue: (double)value unit: (NSLengthFormatterUnit)unit
{
  NSUnit *u = nil;
  NSMeasurement *m = nil;
  NSMeasurementFormatter *mf = nil;

  switch(unit)
    {
    case NSLengthFormatterUnitMillimeter:
      u = [NSUnitLength millimeters];
      break;
    case NSLengthFormatterUnitCentimeter:
      u = [NSUnitLength centimeters];
      break;
    case NSLengthFormatterUnitMeter:
      u = [NSUnitLength meters];
      break;
    case NSLengthFormatterUnitKilometer:
      u = [NSUnitLength kilometers];
      break;
    case NSLengthFormatterUnitInch:
      u = [NSUnitLength inches];
      break;
    case NSLengthFormatterUnitFoot:
      u = [NSUnitLength feet];
      break;
    case NSLengthFormatterUnitYard:
      u = [NSUnitLength yards];
      break;
    case NSLengthFormatterUnitMile:
      u = [NSUnitLength miles];
      break;
    }

  m = [[NSMeasurement alloc] initWithDoubleValue: value
                                            unit: u];
  AUTORELEASE(m);
  mf = [[NSMeasurementFormatter alloc] init];
  AUTORELEASE(mf);
  [mf setUnitStyle: _unitStyle];
  [mf setNumberFormatter: _numberFormatter];
  
  return [mf stringFromMeasurement: m];
}

- (NSString *) stringFromMeters: (double)numberInMeters
{
  return [self stringFromValue: numberInMeters unit: NSLengthFormatterUnitMeter];
}

- (NSString *) unitStringFromValue: (double)value unit: (NSLengthFormatterUnit)unit
{
  return [self stringFromValue: value unit: unit];
}

- (NSString *) unitStringFromMeters: (double)numberInMeters usedUnit: (NSLengthFormatterUnit *)unit
{
  *unit = NSLengthFormatterUnitMeter;
  return [self stringFromValue: numberInMeters unit: *unit];
}

- (BOOL) getObjectValue: (id *)obj forString: (NSString *)string errorDescription: (NSString **)error
{
  return NO;
}

@end