satdump::image::TextDrawer Class Reference

Text image drawer, used to draw arbitrary text onto an image. This needs to be its own class as the font needs to be loaded and kept around as a pointer. More...

#include <text.h>

Classes
struct	char_el
struct	font_info

Public Member Functions
void	init_font (std::string font_path)
	Init the font.
void	init_font ()
	Init with the default font.
bool	font_ready ()
	Is the font ready?
int	draw_text (Image &img, int xs0, int ys0, std::vector< double > color, int size, std::string text)
	Draw text onto an image.

Protected Attributes
font_info	font
bool	has_font = false
uint8_t *	ttf_buffer

Detailed Description

Text image drawer, used to draw arbitrary text onto an image. This needs to be its own class as the font needs to be loaded and kept around as a pointer.

Member Function Documentation

draw_text()

int satdump::image::TextDrawer::draw_text	(	Image &	img,
		int	xs0,
		int	ys0,
		std::vector< double >	color,
		int	size,
		std::string	text )

Draw text onto an image.

Parameters

img	to draw onto
xs0	start X position
ys0	start Y position
color	of the text
size	size/height (in pixels) of the text to draw
text	string the draw

Returns

text length on X axis in pixels

font_ready()

bool satdump::image::TextDrawer::font_ready ( )

inline

Is the font ready?

Returns

true if the font is ready

init_font()

void satdump::image::TextDrawer::init_font

(

std::string

font_path

)

Init the font.

Parameters

font_path

path to a .ttf file

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

• src-core/image/text.h
• src-core/image/text.cpp