KTextEditor::Range

#include <KTextEditor/Range>

Public Member Functions
constexpr	Range () Q_DECL_NOEXCEPT

constexpr	Range (const Cursor &start, const Cursor &end) Q_DECL_NOEXCEPT

constexpr	Range (const Cursor &start, int endLine, int endColumn) Q_DECL_NOEXCEPT

constexpr	Range (const Cursor &start, int width) Q_DECL_NOEXCEPT

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

constexpr Range	encompass (const Range &range) const Q_DECL_NOEXCEPT

constexpr Range	intersect (const Range &range) const Q_DECL_NOEXCEPT

constexpr bool	isValid () const Q_DECL_NOEXCEPT

QString	toString () const

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

constexpr Cursor	end () const Q_DECL_NOEXCEPT

constexpr LineRange	toLineRange () const Q_DECL_NOEXCEPT

void	setBothLines (int line) Q_DECL_NOEXCEPT

void	setBothColumns (int column) Q_DECL_NOEXCEPT

void	setRange (const Range &range) Q_DECL_NOEXCEPT

void	setRange (const Cursor &start, const Cursor &end) Q_DECL_NOEXCEPT

void	setStart (const Cursor &start) Q_DECL_NOEXCEPT

void	setEnd (const Cursor &end) Q_DECL_NOEXCEPT

bool	expandToRange (const Range &range) Q_DECL_NOEXCEPT

bool	confineToRange (const Range &range) Q_DECL_NOEXCEPT

constexpr bool	onSingleLine () const Q_DECL_NOEXCEPT

constexpr int	numberOfLines () const Q_DECL_NOEXCEPT

constexpr int	columnWidth () const Q_DECL_NOEXCEPT

constexpr bool	isEmpty () const Q_DECL_NOEXCEPT

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

constexpr bool	contains (const Cursor &cursor) const Q_DECL_NOEXCEPT

constexpr bool	containsLine (int line) const Q_DECL_NOEXCEPT

constexpr bool	containsColumn (int column) const Q_DECL_NOEXCEPT

constexpr bool	overlaps (const Range &range) const Q_DECL_NOEXCEPT

constexpr bool	overlapsLine (int line) const Q_DECL_NOEXCEPT

constexpr bool	overlapsColumn (int column) const Q_DECL_NOEXCEPT

constexpr bool	boundaryAtCursor (const Cursor &cursor) const Q_DECL_NOEXCEPT

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

constexpr static Range	invalid () Q_DECL_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[email protected]@kde[email protected].org>

Definition at line 44 of file include/ktexteditor/range.h.

Constructor & Destructor Documentation

◆ Range() [1/5]

constexpr KTextEditor::Range::Range ( )

inlineconstexpr

Default constructor.

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

Definition at line 51 of file include/ktexteditor/range.h.

◆ Range() [2/5]

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

inlineconstexpr

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 62 of file include/ktexteditor/range.h.

◆ Range() [3/5]

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

inlineconstexpr

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 73 of file include/ktexteditor/range.h.

◆ Range() [4/5]

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

inlineconstexpr

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

Parameters

start	start position
endLine	end line
endColumn	end column

Definition at line 85 of file include/ktexteditor/range.h.

◆ Range() [5/5]

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

inlineconstexpr

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 98 of file include/ktexteditor/range.h.

Member Function Documentation

◆ boundaryAtCursor()

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

inlineconstexpr

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 432 of file include/ktexteditor/range.h.

◆ columnWidth()

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

inlineconstexpr

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 310 of file include/ktexteditor/range.h.

◆ confineToRange()

bool Range::confineToRange ( const Range & range )

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 52 of file utils/range.cpp.

◆ contains() [1/2]

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

inlineconstexpr

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 355 of file include/ktexteditor/range.h.

◆ contains() [2/2]

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

inlineconstexpr

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 343 of file include/ktexteditor/range.h.

◆ containsColumn()

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

inlineconstexpr

Check whether the range contains column.

Parameters

column column to check

Returns: true if the range contains column, otherwise false

Definition at line 379 of file include/ktexteditor/range.h.

◆ containsLine()

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

inlineconstexpr

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 367 of file include/ktexteditor/range.h.

◆ encompass()

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

inlineconstexpr

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 460 of file include/ktexteditor/range.h.

◆ end()

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

inlineconstexpr

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 183 of file include/ktexteditor/range.h.

◆ expandToRange()

bool Range::expandToRange ( const Range & range )

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 69 of file utils/range.cpp.

◆ fromString()

Range Range::fromString ( QStringView str )

static

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 24 of file utils/range.cpp.

◆ intersect()

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

inlineconstexpr

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 447 of file include/ktexteditor/range.h.

◆ invalid()

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

inlinestaticconstexpr

Returns an invalid range.

Definition at line 115 of file include/ktexteditor/range.h.

◆ isEmpty()

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

inlineconstexpr

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 321 of file include/ktexteditor/range.h.

◆ isValid()

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

inlineconstexpr

Validity check.

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

Definition at line 107 of file include/ktexteditor/range.h.

◆ numberOfLines()

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

inlineconstexpr

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 299 of file include/ktexteditor/range.h.

◆ onSingleLine()

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

inlineconstexpr

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 288 of file include/ktexteditor/range.h.

◆ overlaps()

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

inlineconstexpr

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 391 of file include/ktexteditor/range.h.

◆ overlapsColumn()

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

inlineconstexpr

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 418 of file include/ktexteditor/range.h.

◆ overlapsLine()

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

inlineconstexpr

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 403 of file include/ktexteditor/range.h.

◆ setBothColumns()

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

Convenience function.

Set the start and end columns to column.

Parameters

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

Definition at line 91 of file utils/range.cpp.

◆ setBothLines()

void Range::setBothLines ( int line )

Convenience function.

Set the start and end lines to line.

Parameters

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

Definition at line 86 of file utils/range.cpp.

◆ setEnd()

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

inline

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 254 of file include/ktexteditor/range.h.

◆ setRange() [1/2]

void KTextEditor::Range::setRange	(	const Cursor &	start,
		const Cursor &	end
	)

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

◆ setRange() [2/2]

void KTextEditor::Range::setRange ( const Range & range )

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

Parameters

range range to assign to this range

◆ setStart()

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

inline

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 238 of file include/ktexteditor/range.h.

◆ start()

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

inlineconstexpr

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 173 of file include/ktexteditor/range.h.

◆ toLineRange()

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

inlineconstexpr

Convert this Range to a LineRange.

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

Definition at line 193 of file include/ktexteditor/range.h.

◆ toString()

QString KTextEditor::Range::toString ( ) const

inline

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

See also: fromString()

Definition at line 125 of file include/ktexteditor/range.h.

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()