drivers/gfx/gfx_text.c File Reference

Font and text drawing routines. More...

#include <stddef.h>
#include <assert.h>
#include <gfx/gfx.h>

Go to the source code of this file.

Functions
static void	gfx_draw_char_hugemem (char ch, gfx_coord_t x, gfx_coord_t y, struct font *font, gfx_color_t color, gfx_color_t background_color)
	Helper function that draws a character from a font in hugemem to the display.
static void	gfx_draw_char_progmem (char ch, gfx_coord_t x, gfx_coord_t y, struct font *font, gfx_color_t color, gfx_color_t background_color)
	Helper function that draws a character from a font in progmem to the display.
void	gfx_draw_char (char c, gfx_coord_t x, gfx_coord_t y, struct font *font, gfx_color_t color, gfx_color_t background_color)
	Draws a character to the display.
void	gfx_draw_string (char *str, gfx_coord_t x, gfx_coord_t y, struct font *font, gfx_color_t color, gfx_color_t background_color)
	Draws a string to the display.
void	gfx_draw_progmem_string (const char __progmem_arg *str, gfx_coord_t x, gfx_coord_t y, struct font *font, gfx_color_t color, gfx_color_t background_color)
void	gfx_get_string_bounding_box (char const *str, struct font *font, gfx_coord_t *width, gfx_coord_t *height)
	Computes the bounding box of a string.
void	gfx_get_progmem_string_bounding_box (const char __progmem_arg *str, struct font *font, gfx_coord_t *width, gfx_coord_t *height)
	Computes the bounding box of a string stored in progmem.

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Detailed Description

Font and text drawing routines.

Copyright (C) 2010 Atmel Corporation. All rights reserved.

Definition in file gfx_text.c.

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Function Documentation

static void gfx_draw_char_hugemem	(	char	ch,
		gfx_coord_t	x,
		gfx_coord_t	y,
		struct font *	font,
		gfx_color_t	color,
		gfx_color_t	background_color
	)			[static]

Helper function that draws a character from a font in hugemem to the display.

If background_color is set to GFX_COLOR_TRANSPARENT, no background is drawn.

Parameters:

	ch	Character to be drawn
	x	X coordinate on screen.
	y	Y coordinate on screen.
	font	Font to draw character in
	color	Foreground color of character
	background_color	Background color of character

Definition at line 67 of file gfx_text.c.

References font::first_char, gfx_draw_filled_rect, gfx_draw_pixel(), font::height, font::hugemem, hugemem_read_block(), font::scale, and font::width.

Referenced by gfx_draw_char().

static void gfx_draw_char_progmem	(	char	ch,
		gfx_coord_t	x,
		gfx_coord_t	y,
		struct font *	font,
		gfx_color_t	color,
		gfx_color_t	background_color
	)			[static]

Helper function that draws a character from a font in progmem to the display.

If background_color is set to GFX_COLOR_TRANSPARENT, no background is drawn.

Parameters:

	ch	Character to be drawn
	x	X coordinate on screen.
	y	Y coordinate on screen.
	font	Font to draw character in
	color	Foreground color of character
	background_color	Background color of character

Definition at line 149 of file gfx_text.c.

References __progmem_arg, font::first_char, gfx_draw_filled_rect, gfx_draw_pixel(), font::height, progmem_read8(), font::scale, and font::width.

Referenced by gfx_draw_char().