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extern/opennurbs/opennurbs_string_value.h

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/*
//
// Copyright (c) 1993-2016 Robert McNeel & Associates. All rights reserved.
// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert
// McNeel & Associates.
//
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF
// MERCHANTABILITY ARE HEREBY DISCLAIMED.
//
// For complete openNURBS copyright information see <http://www.opennurbs.org>.
//
////////////////////////////////////////////////////////////////
*/
#pragma once
#if !defined(OPENNURBS_STRING_VALUE_INC_)
#define OPENNURBS_STRING_VALUE_INC_
class ON_CLASS ON_LengthValue
{
public:
ON_LengthValue() = default;
~ON_LengthValue() = default;
ON_LengthValue(const ON_LengthValue&) = default;
ON_LengthValue& operator=(const ON_LengthValue&) = default;
static const ON_LengthValue Unset;
static const ON_LengthValue Zero;
bool IsUnset() const;
bool IsSet() const;
bool Write(
class ON_BinaryArchive& archive
) const;
bool Read(
class ON_BinaryArchive& archive
);
/*
Description:
Create an ON_LengthValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
Returns:
If the string is valid, the exact length value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_LengthValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
*/
static ON_LengthValue CreateFromString(
ON_ParseSettings parse_settings,
const wchar_t* string
);
/*
Description:
Create an ON_LengthValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
string_count - [in]
string[] and string_count specify the string to parse.
If string_count >= 0, it specifies the maximum number of elements in string[]
that may be parsed. If string_count = -1, then the string must contain a
character that terminates length parsing.
string_end - [out]
If string_end is not nullptr, then *string_end points to the first
element in the string that was not parsed.
Returns:
If the string is valid, the exact length value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_LengthValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
*/
static ON_LengthValue CreateFromSubString(
ON_ParseSettings parse_settings,
const wchar_t* string,
int string_count,
const wchar_t** string_end
);
/*
Returns:
A ON_LengthValue with the same length value and unit system = None.
*/
const ON_LengthValue RemoveUnitSystem() const;
/*
Parameters:
length_value - [in]
New length.
Returns:
A ON_LengthValue with the new length and other settings copied from this.
*/
const ON_LengthValue ChangeLength(
double length_value
) const;
#pragma region RH_C_SHARED_ENUM [ON_LengthValue::StringFormat] [Rhino.LengthValue.StringFormat] [nested:byte]
/// <summary>
/// Formatting to apply when creating a length value from a double.
/// </summary>
enum class StringFormat : unsigned char
{
///<summary>Use exact decimal string.</summary>
ExactDecimal = 0,
///<summary>If possible, use exact integer-fraction format (1.125 becomes 1-1/8).</summary>
ExactProperFraction = 1,
///<summary>If possible, use exact fraction format (1.125 becomes 9/8).</summary>
ExactImproperFraction = 2,
///<summary>The value may be adjusted slightly to improve clarity (1.124999... becomes 1.125).</summary>
CleanDecimal = 3,
///<summary>The value may be adjusted slightly to improve clarity (1.124999... becomes 1-1/8).</summary>
CleanProperFraction = 4,
///<summary>The value may be adjusted slightly to improve clarity (1.124999... becomes 9/8).</summary>
CleanImproperFraction = 5
};
#pragma endregion
static ON_LengthValue::StringFormat LengthStringFormatFromUnsigned(
unsigned int string_format_as_unsigned
);
/*
Parameters:
length_value - [in]
length_unit_system - [in]
bUseFractionsInString - [in]
If bUseFractions is true and length_value can be represented as a common
fraction, then the string form will contain a fraction rather than a decimal.
locale_id - [in]
locale id for the string length unit system
0 will select ON_Locale::CurrentCulture.
string_format - [in]
Determines the format of the string representation
Returns:
Length in the specified length unit system
Remarks:
If you don't like the automatically created string value, then
format the string yourself and use ON_LengthValue::CreateFromString().
*/
static ON_LengthValue Create(
double length_value,
const class ON_UnitSystem& length_unit_system,
unsigned int locale_id,
ON_LengthValue::StringFormat string_format
);
/*
Parameters:
length_value - [in]
length_unit_system - [in]
bUseFractionsInString - [in]
If bUseFractions is true and length_value can be represented as a common
fraction, then the string form will contain a fraction rather than a decimal.
locale_id - [in]
locale id for the string length unit system
bool
Returns:
Length in the specified length unit system
Remarks:
If you don't like the automatically created string value, then
format the string yourself and use ON_LengthValue::CreateFromString().
*/
static ON_LengthValue Create(
double length_value,
const ON::LengthUnitSystem length_unit_system,
unsigned int locale_id,
ON_LengthValue::StringFormat string_format
);
static ON_LengthValue Create(
double length_value,
const class ON_LengthUnitName& length_unit_system,
ON_LengthValue::StringFormat string_format
);
/*
Parameters:
context_unit_system - [in]
length unit system for the returned value.
Pass ON_UnitSystem::None to ignore the length unit system and get the value save in this class.
Returns:
Length in the specified length unit system
*/
double Length(
const class ON_UnitSystem& context_unit_system
) const;
/*
Parameters:
context_unit_system - [in]
length unit system for the returned value.
Pass ON::LengthUnitSystem::None to ignore the length unit system and get the value save in this class.
Returns:
Length in the specified length unit system
*/
double Length(
ON::LengthUnitSystem context_unit_system
) const;
/*
Returns:
Length unit system for this class.
*/
const class ON_UnitSystem& LengthUnitSystem() const;
/*
Returns:
The length as a string.
Remarks:
If ON_LengthValue::CreateFromString() or ON_LengthValue::CreateFromSubString()
were used to create this ON_LengthValue, a copy of that string
is returned.
*/
const ON_wString& LengthAsString() const;
const wchar_t* LengthAsStringPointer() const;
const ON_ParseSettings LengthStringParseSettings() const;
/*
Returns:
Format processing applied to input values.
*/
ON_LengthValue::StringFormat LengthStringFormat() const;
/*
Returns:
Locale used to parse input strings and create unit names.
*/
unsigned int ContextLocaleId() const;
/*
Returns:
Angle unit system used to parse input strings.
*/
ON::AngleUnitSystem ContextAngleUnitSystem() const;
const ON_SHA1_Hash ContentHash() const;
static int Compare(
const ON_LengthValue& lhs,
const ON_LengthValue& rhs
);
private:
// parsing context
unsigned int m_context_locale_id = 0;
ON::AngleUnitSystem m_context_angle_unit_system = ON::AngleUnitSystem::Unset;
ON_LengthValue::StringFormat m_string_format = ON_LengthValue::StringFormat::ExactDecimal;
ON_UnitSystem m_length_unit_system = ON_UnitSystem::Unset;
double m_length = ON_DBL_QNAN;
ON_wString m_length_as_string;
};
class ON_CLASS ON_AngleValue
{
public:
ON_AngleValue() = default;
~ON_AngleValue() = default;
ON_AngleValue(const ON_AngleValue&) = default;
ON_AngleValue& operator=(const ON_AngleValue&) = default;
bool Write(
class ON_BinaryArchive& archive
) const;
bool Read(
class ON_BinaryArchive& archive
);
static const ON_AngleValue Unset;
static const ON_AngleValue Zero;
bool IsUnset() const;
bool IsSet() const;
/// <summary>
/// ON_AngleValue::StringFormat identifies the formatting to apply when creating
/// a length value from a double.
/// </summary>
enum class StringFormat : unsigned char
{
///<summary>Use exact decimal string.</summary>
ExactDecimal = 0,
///<summary>If possible, use exact fraction format (1.125 becomes 9/8).</summary>
ExactFraction = 1,
///<summary>The value may be adjusted slightly to improve clarity (1.124999... becomes 1.125).</summary>
CleanDecimal = 2,
///<summary>The value may be adjusted slightly to improve clarity (1.124999... becomes 9/8).</summary>
CleanFraction = 3
};
static ON_AngleValue::StringFormat AngleStringFormatFromUnsigned(
unsigned int string_format_as_unsigned
);
/*
Description:
Create an ON_AngleValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
Returns:
If the string is valid, the exact angle value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_AngleValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
*/
static ON_AngleValue CreateFromString(
ON_ParseSettings parse_settings,
const wchar_t* string
);
/*
Description:
Create an ON_AngleValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
string_count - [in]
string[] and string_count specify the string to parse.
If string_count >= 0, it specifies the maximum number of elements in string[]
that may be parsed. If string_count = -1, then the string must contain a
character that terminates angle parsing.
string_end - [out]
If string_end is not nullptr, then *string_end points to the first
element in the string that was not parsed.
Returns:
If the string is valid, the exact angle value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_AngleValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
*/
static ON_AngleValue CreateFromSubString(
ON_ParseSettings parse_settings,
const wchar_t* string,
int string_count,
const wchar_t** string_end
);
/*
Parameters:
angle_value - [in]
angle_unit_system - [in]
bUseFractionsInString - [in]
If bUseFractions is true and angle_value can be represented as a common
fraction, then the string form will contain a fraction rather than a decimal.
locale_id - [in]
locale id for the string angle unit system
bool
Returns:
Angle in the specified angle unit system
Remarks:
If you don't like the automatically created string value, then
format the string yourself and use ON_AngleValue::CreateFromString().
*/
static ON_AngleValue Create(
double angle_value,
ON::AngleUnitSystem angle_unit_system,
unsigned int locale_id,
ON_AngleValue::StringFormat string_format
);
static ON_AngleValue Create(
double angle_value,
const class ON_AngleUnitName& angle_unit_system,
ON_AngleValue::StringFormat string_format
);
/*
Parameters:
context_unit_system - [in]
angle unit system for the returned value.
Pass ON::AngleUnitSystem::None to ignore the angle unit system and get the value save in this class.
Returns:
Angle in the specified angle unit system
*/
double Angle(
ON::AngleUnitSystem context_unit_system
) const;
/*
Returns:
Angle unit system for this class.
*/
ON::AngleUnitSystem AngleUnitSystem() const;
/*
Returns:
The angle as a string.
Remarks:
If ON_AngleValue::CreateFromString() or ON_AngleValue::CreateFromSubString()
were used to create this ON_AngleValue, a copy of that string
is returned.
*/
const ON_wString& AngleAsString() const;
const wchar_t* AngleAsStringPointer() const;
const ON_ParseSettings AngleStringParseSettings() const;
private:
// parsing context
unsigned int m_context_locale_id = 0;
ON::LengthUnitSystem m_context_length_unit_system;
ON_AngleValue::StringFormat m_string_format = ON_AngleValue::StringFormat::ExactDecimal;
ON::AngleUnitSystem m_angle_unit_system = ON::AngleUnitSystem::Unset;
double m_angle = ON_DBL_QNAN;
ON_wString m_angle_as_string;
};
class ON_CLASS ON_ScaleValue
{
public:
ON_ScaleValue() = default;
~ON_ScaleValue() = default;
ON_ScaleValue(const ON_ScaleValue&) = default;
ON_ScaleValue& operator=(const ON_ScaleValue&) = default;
static const ON_ScaleValue Unset;
static const ON_ScaleValue OneToOne;
bool IsUnset() const;
bool IsSet() const;
bool Write(
class ON_BinaryArchive& archive
) const;
bool Read(
class ON_BinaryArchive& archive
);
#pragma region RH_C_SHARED_ENUM [ON_ScaleValue::ScaleStringFormat] [Rhino.ScaleValue.ScaleStringFormat] [nested:byte]
/// <summary>
/// Specifies prefered formats for automatically
/// created string descriptions of a scale value.
/// </summary>
enum class ScaleStringFormat : unsigned char
{
/// <summary>
/// No preference for automatically created string descriptions of a scale value.
/// </summary>
None = 0,
/// <summary>
/// Prefer the ratio format using a colon, like "1:4" or "4:1".
/// </summary>
RatioFormat = 1,
/// <summary>
/// Prefer the equation format using an equal sign, like "1 = 4" or "4 = 1".
/// </summary>
EquationFormat = 2,
/// <summary>
/// Prefer the fraction format using a slash, like "1/4" or "4/1".
/// </summary>
FractionFormat = 3,
/// <summary>
/// ON_ScaleValue::ScaleStringFormat::Unset is used to indicate no preference is set.
/// This condition is different from ON_ScaleValue::ScaleStringFormat::None.
/// </summary>
Unset = 0xFF
};
#pragma endregion
static ON_ScaleValue::ScaleStringFormat ScaleStringFormatFromUnsigned(
unsigned int scale_string_format_as_unsigned
);
/*
Description:
Create an ON_ScaleValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
Returns:
If the string is valid, the exact scale value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_ScaleValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
Examples:
"1:4", "1=4", "1/4", "0.25"
will set LeftToRightScale() = 4, RightToLeftScale() = 0.25
"4:1", "4=1", "4/1", "4"
will set LeftToRightScale() = 0.25, RightToLeftScale() = 4
"100:1", "100=1", "1 meter = 1 centimeter"
will set LeftToRightScale() = 0.01, RightToLeftScale() = 100
"1:100", "1=100", "1 centimeter = 1 meter"
will set LeftToRightScale() = 100, RightToLeftScale() = 0.01
"12:1", "12=1", "12/1", "12", "1 foot = 1 inch"
will set LeftToRightScale() = 0.08333..., RightToLeftScale() = 12
"1:12", "1=12", "1/12", "1 inch = 1 foot"
will set LeftToRightScale() = 12, RightToLeftScale() = 0.08333...
"1:48", "1 = 48", "1/4 inch = 1 foot"
will set LeftToRightScale() = 48, RightToLeftScale() = 0.0208333...
*/
static ON_ScaleValue CreateFromString(
ON_ParseSettings parse_settings,
const wchar_t* string
);
/*
Description:
Create an ON_ScaleValue by parsing a string.
Parameters:
parse_settings - [in]
Pass ON_ParseSettings(context_length_unit_system,context_angle_unit_system,context_locale_id)
string - [in]
null terminated string to parse.
string_count - [in]
string[] and string_count specify the string to parse.
If string_count >= 0, it specifies the maximum number of elements in string[]
that may be parsed. If string_count = -1, then the string must contain a
character that terminates scale parsing.
string_end - [out]
If string_end is not nullptr, then *string_end points to the first
element in the string that was not parsed.
Returns:
If the string is valid, the exact scale value is returned.
If the string is not valid or parsing ends before the string's null terminator,
the ON_ScaleValue::Unset is returned.
Remarks:
If the entire string is not parsed, that is an error condition.
Use CreateFromSubString() to permit parsing a portion of the string.
Examples:
"1:4", "1=4", "1/4", "0.25"
will set LeftToRightScale() = 4, RightToLeftScale() = 0.25
"4:1", "4=1", "4/1", "4"
will set LeftToRightScale() = 0.25, RightToLeftScale() = 4
"100:1", "100=1", "1 meter = 1 centimeter"
will set LeftToRightScale() = 0.01, RightToLeftScale() = 100
"1:100", "1=100", "1 centimeter = 1 meter"
will set LeftToRightScale() = 100, RightToLeftScale() = 0.01
"12:1", "12=1", "12/1", "12", "1 foot = 1 inch"
will set LeftToRightScale() = 0.08333..., RightToLeftScale() = 12
"1:12", "1=12", "1/12", "1 inch = 1 foot"
will set LeftToRightScale() = 12, RightToLeftScale() = 0.08333...
"1:48", "1 = 48", "1/4 inch = 1 foot"
will set LeftToRightScale() = 48, RightToLeftScale() = 0.0208333...
*/
static ON_ScaleValue CreateFromSubString(
ON_ParseSettings parse_settings,
const wchar_t* string,
int string_count,
const wchar_t** string_end
);
/*
Parameters:
left_length - [in]
right_length - [in]
Returns:
A scale value for converting a distance from source_length to
destination_length.
Remarks:
If you don't like the automatically created string value, then
format the string yourself and use ON_ScaleValue::CreateFromString().
*/
static ON_ScaleValue Create(
const class ON_LengthValue& left_side_length,
const class ON_LengthValue& right_side_length,
ON_ScaleValue::ScaleStringFormat string_format_preference
);
/*
Returns:
A dimensionless scale factor.
The word "dimensionless" is critical. Differneces in left and right
side unit systems are accounted for in the returned value.
Remarks:
LeftToRightScale() = 1.0/RightToLeftScale()
Examples:
"1:4", "1=4", "1/4", "0.25"
will set LeftToRightScale() = 4, RightToLeftScale() = 0.25
"4:1", "4=1", "4/1", "4"
will set LeftToRightScale() = 0.25, RightToLeftScale() = 4
"100:1", "100=1", "1 meter = 1 centimeter"
will set LeftToRightScale() = 0.01, RightToLeftScale() = 100
"1:100", "1=100", "1 centimeter = 1 meter"
will set LeftToRightScale() = 100, RightToLeftScale() = 0.01
"12:1", "12=1", "12/1", "12", "1 foot = 1 inch"
will set LeftToRightScale() = 0.08333..., RightToLeftScale() = 12
"1:12", "1=12", "1/12", "1 inch = 1 foot"
will set LeftToRightScale() = 12, RightToLeftScale() = 0.08333...
"1:48", "1 = 48", "1/4 inch = 1 foot"
will set LeftToRightScale() = 48, RightToLeftScale() = 0.0208333...
*/
double LeftToRightScale() const;
/*
Returns:
A dimensionless scale factor.
The word "dimensionless" is critical. Differneces in left and right
side unit systems are accounted for in the returned value.
Remarks:
RightToLeftScale() = 1.0/LeftToRightScale()
Examples:
"1:4", "1=4", "1/4", "0.25"
will set LeftToRightScale() = 4, RightToLeftScale() = 0.25
"4:1", "4=1", "4/1", "4"
will set LeftToRightScale() = 0.25, RightToLeftScale() = 4
"100:1", "100=1", "1 meter = 1 centimeter"
will set LeftToRightScale() = 0.01, RightToLeftScale() = 100
"1:100", "1=100", "1 centimeter = 1 meter"
will set LeftToRightScale() = 100, RightToLeftScale() = 0.01
"12:1", "12=1", "12/1", "12", "1 foot = 1 inch"
will set LeftToRightScale() = 0.08333..., RightToLeftScale() = 12
"1:12", "1=12", "1/12", "1 inch = 1 foot"
will set LeftToRightScale() = 12, RightToLeftScale() = 0.08333...
"1:48", "1 = 48", "1/4 inch = 1 foot"
will set LeftToRightScale() = 48, RightToLeftScale() = 0.0208333...
*/
double RightToLeftScale() const;
const class ON_LengthValue& LeftLengthValue() const;
const class ON_LengthValue& RightLengthValue() const;
/*
Returns:
The scale as a string.
Remarks:
If ON_ScaleValue::CreateFromString() or ON_ScaleValue::CreateFromSubString()
were used to create this ON_ScaleValue, a copy of that string is returned.
*/
const ON_wString& ScaleAsString() const;
const wchar_t* ScaleAsStringPointer() const;
const ON_ParseSettings ScaleStringParseSettings() const;
/*
Description
Exchange the left and right lengths.
*/
void SwapLeftAndRight();
const ON_SHA1_Hash ContentHash() const;
static int Compare(
const ON_ScaleValue& lhs,
const ON_ScaleValue& rhs
);
private:
double m_left_to_right_scale = ON_DBL_QNAN;
double m_right_to_left_scale = ON_DBL_QNAN;
// parsing context
unsigned int m_context_locale_id = 0;
ON::LengthUnitSystem m_context_length_unit_system = ON::LengthUnitSystem::None;
ON::AngleUnitSystem m_context_angle_unit_system = ON::AngleUnitSystem::None;
ON_ScaleValue::ScaleStringFormat m_string_format_preference = ON_ScaleValue::ScaleStringFormat::Unset;
ON_wString m_scale_as_string;
ON_LengthValue m_left_length = ON_LengthValue::Unset;
ON_LengthValue m_right_length = ON_LengthValue::Unset;
};
#endif