v1::text_cursor Class Reference

#include <hikogui/text/text_cursor.hpp>

Public Member Functions
constexpr	text_cursor (text_cursor const &) noexcept=default
constexpr	text_cursor (text_cursor &&) noexcept=default
constexpr text_cursor &	operator= (text_cursor const &) noexcept=default
constexpr text_cursor &	operator= (text_cursor &&) noexcept=default
constexpr text_cursor &	resize (size_t size) &noexcept
	Set the text size.
constexpr text_cursor	resize (size_t size) &&noexcept
constexpr	text_cursor (size_t index, bool after) noexcept
	Create a new text cursor.
constexpr text_cursor	neighbor (size_t size) const noexcept
	Return the neighbor cursor.
constexpr text_cursor	after_neighbor (size_t size) const noexcept
constexpr text_cursor	before_neighbor (size_t size) const noexcept
constexpr bool	start_of_text () const noexcept
constexpr bool	end_of_text (size_t size) const noexcept
constexpr size_t	index () const noexcept
constexpr bool	after () const noexcept
constexpr bool	before () const noexcept

Friends
constexpr friend bool	operator== (text_cursor const &, text_cursor const &)=default
constexpr friend auto	operator<=> (text_cursor const &, text_cursor const &)=default

Detailed Description

A cursor-position in text.

The cursor position takes into account the index of the character and if it is in front or behind this character. This allows for more detailed positioning inside bidirectional text.

Constructor & Destructor Documentation

text_cursor()

constexpr v1::text_cursor::text_cursor ( size_t index, bool after )

inlineconstexprnoexcept

Create a new text cursor.

Parameters

index	The character where the cursor is.
after	True if the cursor is after the character, false if the cursor is before the character

Member Function Documentation

neighbor()

constexpr text_cursor v1::text_cursor::neighbor ( size_t size ) const

inlineconstexprnoexcept

Return the neighbor cursor.

Parameters

size	The text size.

Returns

The cursor that is the neighbor of the this cursor. If this cursor is at start-of-text or end-of-text then this cursor is returned.

resize()

constexpr text_cursor & v1::text_cursor::resize ( size_t size ) &

inlineconstexprnoexcept

Set the text size.

This function will clamp the cursor position inside the actual text. It should be called before the cursor position is used to select characters in a text.

The cursor position after this function will be:

• In the same position if the character still exists in the text.
• After the last character in the text if the text is non-empty.
• Before the first character in the text if the text is empty.

Parameters

size	The size of the text string that this cursor points into.

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

• hikogui/src/hikogui/text/text_cursor.hpp