hi::v1::font_char_map Class Reference

#include <hikogui/font/font_char_map.hpp>

Public Member Functions
constexpr	font_char_map (font_char_map const &) noexcept=default
constexpr	font_char_map (font_char_map &&) noexcept=default
constexpr font_char_map &	operator= (font_char_map const &) noexcept=default
constexpr font_char_map &	operator= (font_char_map &&) noexcept=default
constexpr bool	empty () const noexcept
constexpr void	reserve (size_t n)
	Reserve space for a set of ranges to be added.
constexpr size_t	count () const noexcept
	Get the number of code-points supported by the char-map.
constexpr size_t	update_mask (std::bitset< 0x11 '0000 > &mask) const noexcept
	Update a code-point mask.
constexpr void	add (char32_t start_code_point, char32_t end_code_point, uint16_t start_glyph) noexcept
	Add a range of code points.
void	prepare () noexcept
	Prepare the map for searching.
glyph_id	find (char32_t code_point) const noexcept
	Find a glyph for a code_point.

Detailed Description

Character map of a font.

This type serves the check if a code-point is supported by a font (even when the font is unloaded), and to retrieve the glyph mapped to the code-point.

Member Function Documentation

add()

constexpr void hi::v1::font_char_map::add ( char32_t start_code_point, char32_t end_code_point, uint16_t start_glyph )

inlineconstexprnoexcept

Add a range of code points.

Parameters

start_code_point	The starting code-point of the range.
end_code_point	The ending code-point of the range (inclusive).
start_glyph	The starting glyph of the range.

count()

constexpr size_t hi::v1::font_char_map::count ( ) const

inlineconstexprnoexcept

Get the number of code-points supported by the char-map.

find()

glyph_id hi::v1::font_char_map::find ( char32_t code_point ) const

inlinenoexcept

Find a glyph for a code_point.

Parameters

code_point

The code-point to find in the character map.

Returns

The corrosponding glyph found representing the code-point, or an empty glyph if not found.

prepare()

void hi::v1::font_char_map::prepare ( )

inlinenoexcept

Prepare the map for searching.

Precondition

All ranged of code-point must have been added with add().

Postcondition

The character map can be searched using find().

reserve()

constexpr void hi::v1::font_char_map::reserve ( size_t n )

inlineconstexpr

Reserve space for a set of ranges to be added.

Parameters

n	The number of ranges to be added.

update_mask()

constexpr size_t hi::v1::font_char_map::update_mask ( std::bitset< 0x11 '0000 > & mask ) const

inlineconstexprnoexcept

Update a code-point mask.

Parameters

mask	The mask to be updated.

Returns

Number of code-point that where added and where not in the mask before.

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

• hikogui/src/hikogui/font/font_char_map.hpp