IlvCodeEditor::Location Class Reference

The position of a logical character in the text managed by an IlvCodeEditor. More...

#include <ilviews/gadgets/codeedit.h>

Public Member Functions
	Location (IlInt line=-1, IlInt column=-1)
	Constructor. More...
IlInt	getColumn () const
	Returns the value of the column of this location. More...
IlInt	getLine () const
	Returns the value of the line of this location. More...
IlBoolean	isDefault () const
	Tells if the location is set to default values. More...
IlBoolean	operator!= (const Location &source) const
	Are the two locations different. More...
IlBoolean	operator< (const Location &other) const
	Checks if this location is strictly before another one. More...
IlBoolean	operator<= (const Location &other) const
	Checks if this location is before another one. More...
IlBoolean	operator== (const Location &source) const
	Are the two locations identical. More...
IlBoolean	operator> (const Location &other) const
	Checks if this location is strictly after another one. More...
IlBoolean	operator>= (const Location &other) const
	Checks if this location is after another one. More...
void	set (IlInt line, IlInt column)
	Assigns the line and column values. More...
void	set (const Location &source)
	Copies a location. More...
void	setColumn (IlInt col)
	Sets the value of the column for this location. More...
void	setLine (IlInt line)
	Sets the value of the line for this location. More...

Detailed Description

The position of a logical character in the text managed by an IlvCodeEditor.

Library: ilvadvgagt
This class allows locating characters in a text that can contain up to MAX_INT * MAX_INT characters. The line and column values are signed; the negative -1 values are used to note incorrect line, column, or location altogether.

The valid numbering of lines and columns in locations starts from (0, 0).

Constructor & Destructor Documentation

IlvCodeEditor::Location::Location	(	IlInt	line = -1,
		IlInt	column = -1
	)

Constructor.

By default, when no values are given for line and column, the location is invalid. That is a call to isDefault() will return IlTrue.

Member Function Documentation

IlInt IlvCodeEditor::Location::getColumn

(

)

const

Returns the value of the column of this location.

Returns

The column of this location.

IlInt IlvCodeEditor::Location::getLine

(

)

const

Returns the value of the line of this location.

Returns

The line of this location.

IlBoolean IlvCodeEditor::Location::isDefault

(

)

const

Tells if the location is set to default values.

Returns

IlTrue if both the line and the column numbers are set to -1; IlFalse otherwise.

IlBoolean IlvCodeEditor::Location::operator!=

(

const Location &

source

)

const

Are the two locations different.

Locations are different if they are not identical.

Returns

IlTrue if the locations are different, IlFalse otherwise.

IlBoolean IlvCodeEditor::Location::operator<

(

const Location &

other

)

const

Checks if this location is strictly before another one.

Returns

IlTrue if this location is strictly smaller than other; IlFalse otherwise.

Parameters

other

the location to compare to.

A location is strictly smaller than another if it is not greater.

IlBoolean IlvCodeEditor::Location::operator<=

(

const Location &

other

)

const

Checks if this location is before another one.

Parameters

other

the location to compare to.

Returns

IlTrue if this location is smaller than other; IlFalse otherwise.

A location is smaller than another if its line is smaller than the other one, or the lines are the same but its column is smaller.

IlBoolean IlvCodeEditor::Location::operator==

(

const Location &

source

)

const

Are the two locations identical.

Locations are identical if the line and column values are identical.

Returns

IlTrue if the locations are identical; IlFalse otherwise.

IlBoolean IlvCodeEditor::Location::operator>

(

const Location &

other

)

const

Checks if this location is strictly after another one.

A location is strictly greater than another if it is not smaller.

Parameters

other

the location to compare to.

Returns

IlTrue if this location is strictly greater than other; IlFalse otherwise.

IlBoolean IlvCodeEditor::Location::operator>=

(

const Location &

other

)

const

Checks if this location is after another one.

Parameters

other

the location to compare to.

Returns

IlTrue if this location is greater than other; IlFalse otherwise.

A location is greater to another if its line is greater than the other one, or the lines are the same but its column is greater.

void IlvCodeEditor::Location::set	(	IlInt	line,
		IlInt	column
	)

Assigns the line and column values.

Parameters

line	The new line number.
column	The new column number.

If line or column is strictly negative, the set value is -1, making the location at least partially invalid.

void IlvCodeEditor::Location::set

(

const Location &

source

)

Copies a location.

No check is made to verify the validity of the argument.

Parameters

source

The location to copy.

void IlvCodeEditor::Location::setColumn

(

IlInt

col

)

Sets the value of the column for this location.

If the given value is negative, the column number will be changed to -1.

Parameters

col	The new column number for this location.

void IlvCodeEditor::Location::setLine

(

IlInt

line

)

Sets the value of the line for this location.

If the given value is negative, the line number will be changed to -1.

Parameters

line	The new line number for this location.