KTextEditor::Range

#include <KTextEditor/Range>

Public Member Functions
constexpr	Range () noexcept=default

constexpr	Range (Cursor start, Cursor end) noexcept

constexpr	Range (Cursor start, int endLine, int endColumn) noexcept

constexpr	Range (Cursor start, int width) noexcept

constexpr	Range (int startLine, int startColumn, int endLine, int endColumn) noexcept

constexpr Range	encompass (Range range) const noexcept

constexpr Range	intersect (Range range) const noexcept

constexpr bool	isValid () const noexcept

QString	toString () const

Position
The following functions provide access to, and manipulation of, the range's position.
constexpr Cursor	start () const noexcept

constexpr Cursor	end () const noexcept

constexpr LineRange	toLineRange () const noexcept

void	setBothLines (int line) noexcept

void	setBothColumns (int column) noexcept

void	setRange (Range range) noexcept

void	setRange (Cursor start, Cursor end) noexcept

void	setStart (Cursor start) noexcept

void	setEnd (Cursor end) noexcept

bool	expandToRange (Range range) noexcept

bool	confineToRange (Range range) noexcept

constexpr bool	onSingleLine () const noexcept

constexpr int	numberOfLines () const noexcept

constexpr int	columnWidth () const noexcept

constexpr bool	isEmpty () const noexcept

Comparison
The following functions perform checks against this range in comparison to other lines, columns, cursors, and ranges.
constexpr bool	contains (Range range) const noexcept

constexpr bool	contains (Cursor cursor) const noexcept

constexpr bool	containsLine (int line) const noexcept

constexpr bool	containsColumn (int column) const noexcept

constexpr bool	overlaps (Range range) const noexcept

constexpr bool	overlapsLine (int line) const noexcept

constexpr bool	overlapsColumn (int column) const noexcept

constexpr bool	boundaryAtCursor (Cursor cursor) const noexcept

Static Public Member Functions
static Range	fromString (QStringView str) noexcept

static constexpr Range	invalid () noexcept

Detailed Description

An object representing a section of text, from one Cursor to another.

A Range is a basic class which represents a range of text with two Cursors, from a start() position to an end() position.

For simplicity and convenience, ranges always maintain their start position to be before or equal to their end position. Attempting to set either the start or end of the range beyond the respective end or start will result in both values being set to the specified position. In the constructor, the start and end will be swapped if necessary.

If you want additional functionality such as the ability to maintain position in a document, see MovingRange.

See also: MovingRange

Author: Hamish Rodda <rodda.nosp@m.@kde.nosp@m..org>

Definition at line 48 of file include/ktexteditor/range.h.

Constructor & Destructor Documentation

◆ Range() [1/5]

constexpr KTextEditor::Range::Range ( )

constexprdefaultnoexcept

Default constructor.

Creates a valid range from position (0, 0) to position (0, 0).

◆ Range() [2/5]

constexpr KTextEditor::Range::Range	(	Cursor	start,
		Cursor	end )

inlineconstexprnoexcept

Constructor which creates a range from start to end.

If start is after end, they will be swapped.

Parameters

start	start position
end	end position

Definition at line 64 of file include/ktexteditor/range.h.

◆ Range() [3/5]

constexpr KTextEditor::Range::Range	(	Cursor	start,
		int	width )

inlineconstexprnoexcept

Constructor which creates a single-line range from start, extending width characters along the same line.

Parameters

start	start position
width	width of this range in columns along the same line

Definition at line 77 of file include/ktexteditor/range.h.

◆ Range() [4/5]

constexpr KTextEditor::Range::Range	(	Cursor	start,
		int	endLine,
		int	endColumn )

inlineconstexprnoexcept

Constructor which creates a range from start, to endLine, endColumn.

Parameters

start	start position
endLine	end line
endColumn	end column

Definition at line 90 of file include/ktexteditor/range.h.

◆ Range() [5/5]

constexpr KTextEditor::Range::Range	(	int	startLine,
		int	startColumn,
		int	endLine,
		int	endColumn )

inlineconstexprnoexcept

Constructor which creates a range from startLine, startColumn to endLine, endColumn.

Parameters

startLine	start line
startColumn	start column
endLine	end line
endColumn	end column

Definition at line 104 of file include/ktexteditor/range.h.

Member Function Documentation

◆ boundaryAtCursor()

constexpr bool KTextEditor::Range::boundaryAtCursor ( Cursor cursor ) const

inlineconstexprnoexcept

Check whether cursor is located at either of the start() or end() boundaries.

Parameters

cursor cursor to check

Returns: true if the cursor is equal to start() or end(), otherwise false.

Definition at line 412 of file include/ktexteditor/range.h.

◆ columnWidth()

constexpr int KTextEditor::Range::columnWidth ( ) const

inlineconstexprnoexcept

Returns the number of columns separating the start() and end() positions.

Returns: the number of columns separating the start() and end() positions; 0 if the start and end columns are the same.

Definition at line 290 of file include/ktexteditor/range.h.

◆ confineToRange()

bool Range::confineToRange ( Range range )

noexcept

Confine this range if necessary to fit within range.

Parameters

range range which should contain this range

Returns: true if confinement occurred, false otherwise

Definition at line 50 of file utils/range.cpp.

◆ contains() [1/2]

constexpr bool KTextEditor::Range::contains ( Cursor cursor ) const

inlineconstexprnoexcept

Check to see if cursor is contained within this range, ie >= start() and < end().

Parameters

cursor the position to test for containment

Returns: true if the cursor is contained within this range, otherwise false.

Definition at line 335 of file include/ktexteditor/range.h.

◆ contains() [2/2]

constexpr bool KTextEditor::Range::contains ( Range range ) const

inlineconstexprnoexcept

Check whether the this range wholly encompasses range.

Parameters

range range to check

Returns: true, if this range contains range, otherwise false

Definition at line 323 of file include/ktexteditor/range.h.

◆ containsColumn()

constexpr bool KTextEditor::Range::containsColumn ( int column ) const

inlineconstexprnoexcept

Check whether the range contains column.

Parameters

column column to check

Returns: true if the range contains column, otherwise false

Definition at line 359 of file include/ktexteditor/range.h.

◆ containsLine()

constexpr bool KTextEditor::Range::containsLine ( int line ) const

inlineconstexprnoexcept

Returns true if this range wholly encompasses line.

Parameters

line	line to check

Returns: true if the line is wholly encompassed by this range, otherwise false.

Definition at line 347 of file include/ktexteditor/range.h.

◆ encompass()

constexpr Range KTextEditor::Range::encompass ( Range range ) const

inlineconstexprnoexcept

Returns the smallest range which encompasses this range and the supplied range.

Parameters

range other range to encompass

Returns: the smallest range which contains this range and the supplied range.

Definition at line 440 of file include/ktexteditor/range.h.

◆ end()

constexpr Cursor KTextEditor::Range::end ( ) const

inlineconstexprnoexcept

Get the end position of this range.

This will always be >= start().

Returns: const reference to the end position of this range.

Definition at line 163 of file include/ktexteditor/range.h.

◆ expandToRange()

bool Range::expandToRange ( Range range )

noexcept

Expand this range if necessary to contain range.

Parameters

range range which this range should contain

Returns: true if expansion occurred, false otherwise

Definition at line 67 of file utils/range.cpp.

◆ fromString()

Range Range::fromString ( QStringView str )

staticnoexcept

Returns a Range created from the string str containing the format "[(start-line, start-column), (endl-line:end-column)]".

In case the string cannot be parsed, an Range::invalid() is returned.

See also: toString()

Definition at line 22 of file utils/range.cpp.

◆ intersect()

constexpr Range KTextEditor::Range::intersect ( Range range ) const

inlineconstexprnoexcept

Intersects this range with another, returning the shared area of the two ranges.

Parameters

range other range to intersect with this

Returns: the intersection of this range and the supplied range.

Definition at line 427 of file include/ktexteditor/range.h.

◆ invalid()

static constexpr Range KTextEditor::Range::invalid ( )

inlinestaticconstexprnoexcept

Returns an invalid range.

Definition at line 121 of file include/ktexteditor/range.h.

◆ isEmpty()

constexpr bool KTextEditor::Range::isEmpty ( ) const

inlineconstexprnoexcept

Returns true if this range contains no characters, ie.

the start() and end() positions are the same.

Returns: true if the range contains no characters, otherwise false

Definition at line 301 of file include/ktexteditor/range.h.

◆ isValid()

constexpr bool KTextEditor::Range::isValid ( ) const

inlineconstexprnoexcept

Validity check.

In the base class, returns true unless the range starts before (0,0).

Definition at line 113 of file include/ktexteditor/range.h.

◆ numberOfLines()

constexpr int KTextEditor::Range::numberOfLines ( ) const

inlineconstexprnoexcept

Returns the number of lines separating the start() and end() positions.

Returns: the number of lines separating the start() and end() positions; 0 if the start and end lines are the same.

Definition at line 279 of file include/ktexteditor/range.h.

◆ onSingleLine()

constexpr bool KTextEditor::Range::onSingleLine ( ) const

inlineconstexprnoexcept

Check whether this range is wholly contained within one line, ie.

if the start() and end() positions are on the same line.

Returns: true if both the start and end positions are on the same line, otherwise false

Definition at line 268 of file include/ktexteditor/range.h.

◆ overlaps()

constexpr bool KTextEditor::Range::overlaps ( Range range ) const

inlineconstexprnoexcept

Check whether the this range overlaps with range.

Parameters

range range to check against

Returns: true, if this range overlaps with range, otherwise false

Definition at line 371 of file include/ktexteditor/range.h.

◆ overlapsColumn()

constexpr bool KTextEditor::Range::overlapsColumn ( int column ) const

inlineconstexprnoexcept

Check to see if this range overlaps column; that is, if column is between start().column() and end().column().

This function is most likely to be useful in relation to block text editing.

Parameters

column the column to test

Returns: true if the column is between the range's starting and ending columns, otherwise false.

Definition at line 398 of file include/ktexteditor/range.h.

◆ overlapsLine()

constexpr bool KTextEditor::Range::overlapsLine ( int line ) const

inlineconstexprnoexcept

Check whether the range overlaps at least part of line.

Parameters

line	line to check

Returns: true, if the range overlaps at least part of line, otherwise false

Definition at line 383 of file include/ktexteditor/range.h.

◆ setBothColumns()

void KTextEditor::Range::setBothColumns ( int column )

noexcept

Convenience function.

Set the start and end columns to column.

Parameters

column the column number to assign to start() and end()

Definition at line 89 of file utils/range.cpp.

◆ setBothLines()

void Range::setBothLines ( int line )

noexcept

Convenience function.

Set the start and end lines to line.

Parameters

line	the line number to assign to start() and end()

Definition at line 84 of file utils/range.cpp.

◆ setEnd()

void KTextEditor::Range::setEnd ( Cursor end )

inlinenoexcept

Set the end cursor to end.

Note: If end is in front of current start, start and end will be set to new end value.

Parameters

end	new end cursor

Definition at line 234 of file include/ktexteditor/range.h.

◆ setRange() [1/2]

void Range::setRange	(	Cursor	start,
		Cursor	end )

noexcept

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Set the start and end cursors to start and end respectively.

Note: If start is after end, they will be reversed.

Parameters

start	start cursor
end	end cursor

Definition at line 41 of file utils/range.cpp.

◆ setRange() [2/2]

void Range::setRange ( Range range )

noexcept

Set the start and end cursors to range.start() and range.end() respectively.

Parameters

range range to assign to this range

Definition at line 35 of file utils/range.cpp.

◆ setStart()

void KTextEditor::Range::setStart ( Cursor start )

inlinenoexcept

Set the start cursor to start.

Note: If start is after current end, start and end will be set to new start value.

Parameters

start new start cursor

Definition at line 218 of file include/ktexteditor/range.h.

◆ start()

constexpr Cursor KTextEditor::Range::start ( ) const

inlineconstexprnoexcept

Get the start position of this range.

This will always be <= end().

Returns: const reference to the start position of this range.

Definition at line 153 of file include/ktexteditor/range.h.

◆ toLineRange()

constexpr LineRange KTextEditor::Range::toLineRange ( ) const

inlineconstexprnoexcept

Convert this Range to a LineRange.

Returns: LineRange from the start line to the end line of this range.

Definition at line 173 of file include/ktexteditor/range.h.

◆ toString()

QString Range::toString ( ) const

Returns the cursor position as string in the format "start-line:start-column,endl-line:end-column".

See also: fromString()

Definition at line 140 of file utils/range.cpp.

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

KDE's Doxygen guidelines are available online.

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About KTextEditor

KTextEditor::Range

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Range() [1/5]

◆ Range() [2/5]

◆ Range() [3/5]

◆ Range() [4/5]

◆ Range() [5/5]

Member Function Documentation

◆ boundaryAtCursor()

◆ columnWidth()

◆ confineToRange()

◆ contains() [1/2]

◆ contains() [2/2]

◆ containsColumn()

◆ containsLine()

◆ encompass()

◆ end()

◆ expandToRange()

◆ fromString()

◆ intersect()

◆ invalid()

◆ isEmpty()

◆ isValid()

◆ numberOfLines()

◆ onSingleLine()

◆ overlaps()

◆ overlapsColumn()

◆ overlapsLine()

◆ setBothColumns()

◆ setBothLines()

◆ setEnd()

◆ setRange() [1/2]

◆ setRange() [2/2]

◆ setStart()

◆ start()

◆ toLineRange()

◆ toString()