This object is used to input a character string from the operator. More...

#include <isobus_virtual_terminal_objects.hpp>

Inheritance diagram for isobus::InputString:

Collaboration diagram for isobus::InputString:

Public Types
enum class	AttributeName : std::uint8_t { Type = 0 , Width = 1 , Height = 2 , BackgroundColour = 3 , FontAttributes = 4 , InputAttributes = 5 , Options = 6 , VariableReference = 7 , Justification = 8 , Enabled = 9 , NumberOfAttributes = 10 }
	Enumerates this object's attributes which are assigned an attribute ID. The Change Attribute command allows any writable attribute with an AID to be changed. More...

enum class	Options : std::uint8_t { Transparent = 0 , AutoWrap = 1 , WrapOnHyphen = 2 }
	Options that can be applied to the input string. More...

enum class	HorizontalJustification : std::uint8_t { PositionLeft = 0 , PositionMiddle = 1 , PositionRight = 2 , Reserved = 3 }
	The allowable horizontal justification options. More...

enum class	VerticalJustification : std::uint8_t { PositionTop = 0 , PositionMiddle = 1 , PositionBottom = 2 , Reserved = 3 }
	The allowable vertical justification options. More...

Public Types inherited from isobus::VTObject
enum class	AttributeError : std::uint8_t { InvalidObjectID = 0 , InvalidAttributeID = 1 , InvalidValue = 2 , AnyOtherError = 4 }
	Enumerates the bit indices of the error fields that can be set when changing an attribute. More...

Public Member Functions
	InputString ()=default
	Constructor for a input string object.

	~InputString () override=default
	Virtual destructor for a input string object.

VirtualTerminalObjectType	get_object_type () const override
	Returns the VT object type of the underlying derived object.

std::uint32_t	get_minumum_object_length () const override
	Returns the minimum binary serialized length of the associated object.

bool	get_is_valid (const std::map< std::uint16_t, std::shared_ptr< VTObject > > &objectPool) const override
	Performs basic error checking on the object and returns if the object is valid.

bool	set_attribute (std::uint8_t attributeID, std::uint32_t rawAttributeData, const std::map< std::uint16_t, std::shared_ptr< VTObject > > &objectPool, AttributeError &returnedError) override
	Sets an attribute and optionally returns an error code in the last parameter.

bool	get_attribute (std::uint8_t attributeID, std::uint32_t &returnedAttributeData) const override
	Gets an attribute and returns the raw data in the last parameter.

bool	get_enabled () const
	Returns if the input string is enabled for text entry.

void	set_enabled (bool value)
	Sets the enable/disable state of the input string.

bool	get_option (Options option) const
	Returns the state of a single option in the object's option bitfield.

void	set_options (std::uint8_t value)
	Sets the options bitfield for this object to a new value.

void	set_option (Options option, bool value)
	Sets a single option in the options bitfield to the specified value.

HorizontalJustification	get_horizontal_justification () const
	Returns the horizontal justification setting of the string.

VerticalJustification	get_vertical_justification () const
	Returns the vertical justification setting of the string.

void	set_justification_bitfield (std::uint8_t value)
	Sets the justification bitfield of the string.

std::string	get_value () const
	Returns a copy of the stored string value. Used only when no string variable objects are children of this object.

void	set_value (const std::string &value)
	Changes the stored string value. Use only when no string variable objects are children of this object.

std::uint16_t	get_font_attributes () const
	Returns the object ID of a font attributes object that defines the font attributes of the Input String object.

void	set_font_attributes (std::uint16_t fontAttributesValue)
	Sets the object ID of a font attributes object that defines the font attributes of the Input String object. Does no error checking on the type of the supplied object.

std::uint16_t	get_variable_reference () const
	Returns the object ID of a string variable object that contains the value of the Input String object.

void	set_variable_reference (std::uint16_t variableReferenceValue)
	Sets the object ID of a string variable object that contains the value of the Input String object. Does no error checking on the type of the supplied object.

std::uint16_t	get_input_attributes () const
	Returns the object ID of a input attributes object that defines what can be input into the Input String object.

void	set_input_attributes (std::uint16_t inputAttributesValue)
	Sets the object ID of a input attributes object that defines what can be input into the Input String object. Does no error checking on the type of the supplied object.

Public Member Functions inherited from isobus::VTObject
	VTObject ()=default
	Constructor for a generic VT object. Sets up default values and the pointer to the member object pool.

virtual	~VTObject ()=default
	Virtual destructor for a generic VT object.

std::uint16_t	get_id () const
	Returns the object ID of this VT object.

void	set_id (std::uint16_t value)
	Sets the object ID of this VT object.

std::uint16_t	get_width () const
	Returns the width of this object in px.

void	set_width (std::uint16_t value)
	Sets the width of this object in px.

std::uint16_t	get_height () const
	Returns the height of this object in px.

void	set_height (std::uint16_t value)
	Sets the height of this object in px.

std::uint8_t	get_background_color () const
	Returns the background color attribute of this object.

void	set_background_color (std::uint8_t value)
	Sets the background color attribute of this object.

std::uint16_t	get_number_children () const
	Returns the number of child objects within this object.

void	add_child (std::uint16_t objectID, std::int16_t relativeXLocation, std::int16_t relativeYLocation)
	Adds an object as a child to another object, which essentially creates a tree of object association.

std::uint16_t	get_child_id (std::uint16_t index) const
	Returns the ID of the child by index, if one was added previously.

std::int16_t	get_child_x (std::uint16_t index) const
	Returns the X offset of the child object associated with the specified index into the parent object.

std::int16_t	get_child_y (std::uint16_t index) const
	Returns the Y offset of the child object associated with the specified index into the parent object.

void	set_child_x (std::uint16_t index, std::int16_t xOffset)
	Sets the X offset of the child object associated with the specified index into the parent object.

void	set_child_y (std::uint16_t index, std::int16_t yOffset)
	Sets the Y offset of the child object associated with the specified index into the parent object.

bool	offset_all_children_with_id (std::uint16_t childObjectID, std::int8_t xOffset, std::int8_t yOffset)
	Offsets all child objects with the specified ID by the amount specified relative to its parent.

void	remove_child (std::uint16_t objectIDToRemove, std::int16_t relativeXLocation, std::int16_t relativeYLocation)
	Removes an object reference from another object. All fields must exactly match for the object to be removed. This is because objects can have multiple of the same child at different places, so we can't infer which one to remove without the exact position.

void	pop_child ()
	Removes the last added child object. This is meant to be a faster way to deal with objects that only have a max of 1 child.

std::uint8_t	get_number_macros () const
	Returns the number of macros referenced by this object.

void	add_macro (MacroMetadata macroToAdd)
	Adds a macro to the list of macros referenced by this object.

MacroMetadata	get_macro (std::uint8_t index) const
	Returns the macro ID at the specified index.

Private Attributes
std::string	stringValue
	The actual string. Used only if variable reference attribute is NULL. Pad with spaces as necessary to satisfy length attribute.

std::uint16_t	fontAttributes = NULL_OBJECT_ID
	Stores the object ID of a font attributes object that will be used to display this object.

std::uint16_t	inputAttributes = NULL_OBJECT_ID
	Stores the object ID of a input attributes object that will be used to determine what can be input into this object.

std::uint16_t	variableReference = NULL_OBJECT_ID
	Stores the object ID of a string variable object that will be used in place of the string value attribute if it is not NULL_OBJECT_ID.

std::uint8_t	optionsBitfield = 0
	Bitfield of options defined in `Options` enum.

std::uint8_t	justificationBitfield = 0
	Bitfield of justification options.

bool	enabled = false
	If the string is interactable.

Static Private Attributes
static constexpr std::uint32_t	MIN_OBJECT_LENGTH = 19
	The fewest bytes of IOP data that can represent this object.

Additional Inherited Members
Static Public Member Functions inherited from isobus::VTObject
static std::shared_ptr< VTObject >	get_object_by_id (std::uint16_t objectID, const std::map< std::uint16_t, std::shared_ptr< VTObject > > &objectPool)
	Returns a VT object from its member pool by ID, or the null id if it does not exist.

Protected Attributes inherited from isobus::VTObject
std::vector< ChildObjectData >	children
	List of child objects.

std::vector< MacroMetadata >	macros
	List of macros referenced by this object.

std::uint16_t	objectID = NULL_OBJECT_ID
	Object identifier. Shall be unique within the object pool.

std::uint16_t	width = 0
	The width of the object. Not always applicable, but often used.

std::uint16_t	height = 0
	The height of the object. Not always applicable, but often used.

std::uint8_t	backgroundColor = 0
	The background color (from the VT colour table)

Detailed Description

This object is used to input a character string from the operator.

Definition at line 1145 of file isobus_virtual_terminal_objects.hpp.

Member Enumeration Documentation

◆ AttributeName

enum class isobus::InputString::AttributeName : std::uint8_t

strong

Enumerates this object's attributes which are assigned an attribute ID. The Change Attribute command allows any writable attribute with an AID to be changed.

Definition at line 1150 of file isobus_virtual_terminal_objects.hpp.

◆ HorizontalJustification

enum class isobus::InputString::HorizontalJustification : std::uint8_t

strong

The allowable horizontal justification options.

Enumerator
PositionLeft	The input string is horizontally justified to the left side of its bounding box.
PositionMiddle	The input string is horizontally justified to the center of its bounding box.
PositionRight	The input string is horizontally justified to the right side of its bounding box.
Reserved	Reserved.

Definition at line 1175 of file isobus_virtual_terminal_objects.hpp.

◆ Options

enum class isobus::InputString::Options : std::uint8_t

strong

Options that can be applied to the input string.

Enumerator
Transparent	If TRUE, the input field is displayed with background showing through instead of using the background colour.
AutoWrap	Auto-Wrapping rules apply.
WrapOnHyphen	If TRUE, Auto-Wrapping can occur between a hyphen and the following character.

Definition at line 1167 of file isobus_virtual_terminal_objects.hpp.

◆ VerticalJustification

enum class isobus::InputString::VerticalJustification : std::uint8_t

strong

The allowable vertical justification options.

Enumerator
PositionTop	The input string is vertically justified to the top of its bounding box.
PositionMiddle	The input string is vertically justified to the center of its bounding box.
PositionBottom	The input string is vertically justified to the bottom of its bounding box.
Reserved	Reserved.

Definition at line 1184 of file isobus_virtual_terminal_objects.hpp.

Member Function Documentation

◆ get_attribute()

bool isobus::InputString::get_attribute	(	std::uint8_t	attributeID,
		std::uint32_t &	returnedAttributeData ) const

overridevirtual

Gets an attribute and returns the raw data in the last parameter.

Parameters

[in]	attributeID	The ID of the attribute to get
[out]	returnedAttributeData	The raw data of the attribute, as decoded in little endian format with unused bytes/bits set to zero. You may need to cast this to the correct type. If this function returns false, this value is undefined.

Returns: True if the attribute was retrieved, otherwise false (the attribute ID was invalid)

Implements isobus::VTObject.

Definition at line 2118 of file isobus_virtual_terminal_objects.cpp.

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◆ get_enabled()

bool isobus::InputString::get_enabled ( ) const

Returns if the input string is enabled for text entry.

Returns: true if the input string is enabled for entry

Definition at line 2206 of file isobus_virtual_terminal_objects.cpp.

◆ get_font_attributes()

std::uint16_t isobus::InputString::get_font_attributes ( ) const

Returns the object ID of a font attributes object that defines the font attributes of the Input String object.

Returns: The object ID of a font attributes object that defines the font attributes of the Input String object

Definition at line 2263 of file isobus_virtual_terminal_objects.cpp.

◆ get_horizontal_justification()

InputString::HorizontalJustification isobus::InputString::get_horizontal_justification ( ) const

Returns the horizontal justification setting of the string.

Returns: The horizontal justification setting of the string

Definition at line 2238 of file isobus_virtual_terminal_objects.cpp.

◆ get_input_attributes()

std::uint16_t isobus::InputString::get_input_attributes ( ) const

Returns the object ID of a input attributes object that defines what can be input into the Input String object.

Returns: The object ID of a input attributes object that defines the input attributes of the Input String object

Definition at line 2283 of file isobus_virtual_terminal_objects.cpp.

◆ get_is_valid()

bool isobus::InputString::get_is_valid ( const std::map< std::uint16_t, std::shared_ptr< VTObject > > & objectPool ) const

overridevirtual

Performs basic error checking on the object and returns if the object is valid.

Parameters

[in] objectPool The object pool to use when validating the object

Returns: true if the object passed basic error checks

Implements isobus::VTObject.

Definition at line 1931 of file isobus_virtual_terminal_objects.cpp.

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◆ get_minumum_object_length()

std::uint32_t isobus::InputString::get_minumum_object_length ( ) const

overridevirtual

Returns the minimum binary serialized length of the associated object.

Returns: The minimum binary serialized length of the associated object

Implements isobus::VTObject.

Definition at line 1926 of file isobus_virtual_terminal_objects.cpp.

◆ get_object_type()

VirtualTerminalObjectType isobus::InputString::get_object_type ( ) const

overridevirtual

Returns the VT object type of the underlying derived object.

Returns: The VT object type of the underlying derived object

Implements isobus::VTObject.

Definition at line 1921 of file isobus_virtual_terminal_objects.cpp.

◆ get_option()

bool isobus::InputString::get_option ( Options option ) const

Returns the state of a single option in the object's option bitfield.

Parameters

[in] option The option to check the value of in the object's option bitfield

Returns: The state of the associated option bit

Definition at line 2216 of file isobus_virtual_terminal_objects.cpp.

◆ get_value()

std::string isobus::InputString::get_value ( ) const

Returns a copy of the stored string value. Used only when no string variable objects are children of this object.

Returns: The value of the string stored in this object

Definition at line 2253 of file isobus_virtual_terminal_objects.cpp.

◆ get_variable_reference()

std::uint16_t isobus::InputString::get_variable_reference ( ) const

Returns the object ID of a string variable object that contains the value of the Input String object.

Returns: The object ID of a string variable object that contains the value of the Input String object

Definition at line 2273 of file isobus_virtual_terminal_objects.cpp.

◆ get_vertical_justification()

InputString::VerticalJustification isobus::InputString::get_vertical_justification ( ) const

Returns the vertical justification setting of the string.

Returns: The vertical justification setting of the string

Definition at line 2243 of file isobus_virtual_terminal_objects.cpp.

◆ set_attribute()

bool isobus::InputString::set_attribute	(	std::uint8_t	attributeID,
		std::uint32_t	rawAttributeData,
		const std::map< std::uint16_t, std::shared_ptr< VTObject > > &	objectPool,
		AttributeError &	returnedError )

overridevirtual

Sets an attribute and optionally returns an error code in the last parameter.

Parameters

[in]	attributeID	The ID of the attribute to change
[in]	rawAttributeData	The raw data to change the attribute to, as decoded in little endian format with unused bytes/bits set to zero.
[in]	objectPool	The object pool to use when validating the objects affected by setting this attribute
[out]	returnedError	If this function returns false, this will be the error code. If the function returns true, this value is undefined.

Returns: True if the attribute was changed, otherwise false (check the returnedError in this case to know why).

Implements isobus::VTObject.

Definition at line 2000 of file isobus_virtual_terminal_objects.cpp.

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◆ set_enabled()

void isobus::InputString::set_enabled ( bool value )

Sets the enable/disable state of the input string.

Parameters

[in] value The new enable/disable state for the input string

Definition at line 2211 of file isobus_virtual_terminal_objects.cpp.

◆ set_font_attributes()

void isobus::InputString::set_font_attributes ( std::uint16_t fontAttributesValue )

Sets the object ID of a font attributes object that defines the font attributes of the Input String object. Does no error checking on the type of the supplied object.

Parameters

[in] fontAttributesValue The object ID of a font attributes object that defines the font attributes of the Input String object

Definition at line 2268 of file isobus_virtual_terminal_objects.cpp.

◆ set_input_attributes()

void isobus::InputString::set_input_attributes ( std::uint16_t inputAttributesValue )

Sets the object ID of a input attributes object that defines what can be input into the Input String object. Does no error checking on the type of the supplied object.

Parameters

[in] inputAttributesValue The object ID of a input attributes object that defines the input attributes of the Input String object

Definition at line 2288 of file isobus_virtual_terminal_objects.cpp.

◆ set_justification_bitfield()

void isobus::InputString::set_justification_bitfield ( std::uint8_t value )

Sets the justification bitfield of the string.

Parameters

[in] value The justification bitfield to set

Definition at line 2248 of file isobus_virtual_terminal_objects.cpp.

◆ set_option()

void isobus::InputString::set_option	(	Options	option,
		bool	value )

Sets a single option in the options bitfield to the specified value.

Parameters

[in]	option	The option to set
[in]	value	The new value of the option bit

Definition at line 2226 of file isobus_virtual_terminal_objects.cpp.

◆ set_options()

void isobus::InputString::set_options ( std::uint8_t value )

Sets the options bitfield for this object to a new value.

Parameters

[in] value The new value for the options bitfield

Definition at line 2221 of file isobus_virtual_terminal_objects.cpp.

◆ set_value()

void isobus::InputString::set_value ( const std::string & value )

Changes the stored string value. Use only when no string variable objects are children of this object.

Parameters

[in] value The new string value

Definition at line 2258 of file isobus_virtual_terminal_objects.cpp.

◆ set_variable_reference()

void isobus::InputString::set_variable_reference ( std::uint16_t variableReferenceValue )

Sets the object ID of a string variable object that contains the value of the Input String object. Does no error checking on the type of the supplied object.

Parameters

[in] variableReferenceValue The object ID of a string variable object that contains the value of the Input String object

Definition at line 2278 of file isobus_virtual_terminal_objects.cpp.

Member Data Documentation

◆ enabled

bool isobus::InputString::enabled = false

private

If the string is interactable.

Definition at line 1309 of file isobus_virtual_terminal_objects.hpp.

◆ fontAttributes

std::uint16_t isobus::InputString::fontAttributes = NULL_OBJECT_ID

private

Stores the object ID of a font attributes object that will be used to display this object.

Definition at line 1304 of file isobus_virtual_terminal_objects.hpp.

◆ inputAttributes

std::uint16_t isobus::InputString::inputAttributes = NULL_OBJECT_ID

private

Stores the object ID of a input attributes object that will be used to determine what can be input into this object.

Definition at line 1305 of file isobus_virtual_terminal_objects.hpp.

◆ justificationBitfield

std::uint8_t isobus::InputString::justificationBitfield = 0

private

Bitfield of justification options.

Definition at line 1308 of file isobus_virtual_terminal_objects.hpp.

◆ MIN_OBJECT_LENGTH

constexpr std::uint32_t isobus::InputString::MIN_OBJECT_LENGTH = 19

staticconstexprprivate

The fewest bytes of IOP data that can represent this object.

Definition at line 1301 of file isobus_virtual_terminal_objects.hpp.

◆ optionsBitfield

std::uint8_t isobus::InputString::optionsBitfield = 0

private

Bitfield of options defined in Options enum.

Definition at line 1307 of file isobus_virtual_terminal_objects.hpp.

◆ stringValue

std::string isobus::InputString::stringValue

private

The actual string. Used only if variable reference attribute is NULL. Pad with spaces as necessary to satisfy length attribute.

Definition at line 1303 of file isobus_virtual_terminal_objects.hpp.

◆ variableReference

std::uint16_t isobus::InputString::variableReference = NULL_OBJECT_ID

private

Stores the object ID of a string variable object that will be used in place of the string value attribute if it is not NULL_OBJECT_ID.

Definition at line 1306 of file isobus_virtual_terminal_objects.hpp.

The documentation for this class was generated from the following files:

isobus/include/isobus/isobus/isobus_virtual_terminal_objects.hpp
isobus/src/isobus_virtual_terminal_objects.cpp

Public Types

Public Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ AttributeName

◆ HorizontalJustification

◆ Options

◆ VerticalJustification

Member Function Documentation

◆ get_attribute()

◆ get_enabled()

◆ get_font_attributes()

◆ get_horizontal_justification()

◆ get_input_attributes()

◆ get_is_valid()

◆ get_minumum_object_length()

◆ get_object_type()

◆ get_option()

◆ get_value()

◆ get_variable_reference()

◆ get_vertical_justification()

◆ set_attribute()

◆ set_enabled()

◆ set_font_attributes()

◆ set_input_attributes()

◆ set_justification_bitfield()

◆ set_option()

◆ set_options()

◆ set_value()

◆ set_variable_reference()

Member Data Documentation

◆ enabled

◆ fontAttributes

◆ inputAttributes

◆ justificationBitfield

◆ MIN_OBJECT_LENGTH

◆ optionsBitfield

◆ stringValue

◆ variableReference