Fixed-width 5x7 font (Adafruit classic). More...

#include <font_adafruit_fixed_5x7.h>

Inheritance diagram for roo_display::FontAdafruitFixed5x7:

Collaboration diagram for roo_display::FontAdafruitFixed5x7:

Public Member Functions
	FontAdafruitFixed5x7 ()
	Construct the font.

void	drawGlyph (const Surface &s, char32_t code, FontLayout layout, Color color) const override
	Draw a single glyph.

void	drawHorizontalString (const Surface &s, const char *utf8_data, uint32_t size, Color color) const override
	Draw a UTF-8 string horizontally.

bool	getGlyphMetrics (char32_t code, FontLayout layout, GlyphMetrics *result) const override
	Retrieve glyph metrics for a code point and layout.

GlyphMetrics	getHorizontalStringMetrics (const char *utf8_data, uint32_t size) const override
	Return metrics of the specified UTF-8 string as if it were a single glyph.

uint32_t	getHorizontalStringGlyphMetrics (const char utf8_data, uint32_t size, GlyphMetrics result, uint32_t offset, uint32_t max_count) const override
	Return metrics for consecutive glyphs in the UTF-8 string.

Public Member Functions inherited from roo_display::Font
const FontMetrics &	metrics () const
	Return font metrics.

const FontProperties &	properties () const
	Return font properties.

virtual int16_t	getKerning (char32_t left, char32_t right) const
	Return kerning adjustment for a pair of code points.

void	drawHorizontalString (const Surface &s, roo::string_view text, Color color) const
	Draw a UTF-8 string horizontally using a string view.

GlyphMetrics	getHorizontalStringMetrics (roo::string_view text) const
	Return metrics of the specified UTF-8 string as if it were a single glyph.

uint32_t	getHorizontalStringGlyphMetrics (roo::string_view text, GlyphMetrics *result, uint32_t offset, uint32_t max_count) const
	Return metrics for consecutive glyphs in the UTF-8 string.

virtual	~Font ()

Additional Inherited Members
Protected Member Functions inherited from roo_display::Font
void	init (FontMetrics metrics, FontProperties properties)

Detailed Description

Fixed-width 5x7 font (Adafruit classic).

Definition at line 8 of file font_adafruit_fixed_5x7.h.

Constructor & Destructor Documentation

◆ FontAdafruitFixed5x7()

roo_display::FontAdafruitFixed5x7::FontAdafruitFixed5x7 ( )

Construct the font.

Definition at line 124 of file font_adafruit_fixed_5x7.cpp.

References roo_display::advance, roo_display::ascent, roo_display::descent, roo_display::Font::init(), roo_display::FontProperties::kAscii, roo_display::FontProperties::kMonospace, roo_display::FontProperties::kNone, and roo_display::linegap.

Member Function Documentation

◆ drawGlyph()

void roo_display::FontAdafruitFixed5x7::drawGlyph	(	const Surface &	s,
		char32_t	code,
		FontLayout	layout,
		Color	color
	)		const

overridevirtual

Draw a single glyph.

The default implementation supports horizontal layout and delegates to drawHorizontalString. Font implementations can override this for a faster path that avoids UTF-8 encoding.

Reimplemented from roo_display::Font.

Definition at line 170 of file font_adafruit_fixed_5x7.cpp.

References color, roo_display::drawAdafruitFixed5x7Glyph(), and roo_display::kHorizontal.

◆ drawHorizontalString()

void roo_display::FontAdafruitFixed5x7::drawHorizontalString	(	const Surface &	s,
		const char *	utf8_data,
		uint32_t	size,
		Color	color
	)		const

overridevirtual

Draw a UTF-8 string horizontally.

Implements roo_display::Font.

Definition at line 176 of file font_adafruit_fixed_5x7.cpp.

References roo_display::advance, color, and roo_display::drawAdafruitFixed5x7Glyph().

◆ getGlyphMetrics()

bool roo_display::FontAdafruitFixed5x7::getGlyphMetrics	(	char32_t	code,
		FontLayout	layout,
		GlyphMetrics *	result
	)		const

overridevirtual

Retrieve glyph metrics for a code point and layout.

Implements roo_display::Font.

Definition at line 194 of file font_adafruit_fixed_5x7.cpp.

References roo_display::advance, roo_display::ascent, and roo_display::descent.

◆ getHorizontalStringGlyphMetrics()

uint32_t roo_display::FontAdafruitFixed5x7::getHorizontalStringGlyphMetrics	(	const char *	utf8_data,
		uint32_t	size,
		GlyphMetrics *	result,
		uint32_t	offset,
		uint32_t	max_count
	)		const