Functions related to laying out the texts. More...

#include "fontcache.h"
#include "gfx_func.h"
#include "core/math_func.hpp"
#include <stack>
#include <string_view>

Data Structures
struct	FontState
	Text drawing parameters, which can change while drawing a line, but are kept between multiple parts of the same text, e.g. More...

class	Font
	Container with information about a font. More...

class	ParagraphLayouter
	Interface to glue fallback and normal layouter into one. More...

class	ParagraphLayouter::Position
	Position of a glyph within a VisualRun. More...

class	ParagraphLayouter::VisualRun
	Visual run contains data about the bit of text with the same font. More...

class	ParagraphLayouter::Line
	A single line worth of VisualRuns. More...

class	Layouter
	The layouter performs all the layout work. More...

struct	Layouter::LineCacheKey
	Key into the linecache. More...

struct	Layouter::LineCacheQuery

struct	Layouter::LineCacheCompare
	Comparator for std::map. More...

struct	Layouter::LineCacheItem
	Item in the linecache. More...

Typedefs
using	FontMap = std::vector< std::pair< int, Font * > >
	Mapping from index to font.

Functions
ParagraphLayouter::Position	GetCharPosInString (std::string_view str, const char *ch, FontSize start_fontsize=FS_NORMAL)
	Get the leading corner of a character in a single-line string relative to the start of the string.

ptrdiff_t	GetCharAtPosition (std::string_view str, int x, FontSize start_fontsize=FS_NORMAL)
	Get the character from a string that is drawn at a specific position.

Detailed Description

Functions related to laying out the texts.

Definition in file gfx_layout.h.

Typedef Documentation

using FontMap = std::vector<std::pair<int, Font *> >

Mapping from index to font.

The pointer is owned by FontColourMap.

Definition at line 84 of file gfx_layout.h.

ptrdiff_t GetCharAtPosition	(	std::string_view	str,
		int	x,
		FontSize	start_fontsize
	)

Get the character from a string that is drawn at a specific position.

Parameters

str	String to test.
x	Position relative to the start of the string.
start_fontsize	Font size to start the text with.

Returns: Index of the character position or -1 if there is no character at the position.

Definition at line 438 of file gfx_layout.cpp.

ParagraphLayouter::Position GetCharPosInString	(	std::string_view	str,
		const char *	ch,
		FontSize	start_fontsize
	)

Get the leading corner of a character in a single-line string relative to the start of the string.

Parameters

str	String containing the character.
ch	Pointer to the character in the string.
start_fontsize	Font size to start the text with.

Definition at line 421 of file gfx_layout.cpp.