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font.h
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#ifndef FONT_H_INCLUDED
#define FONT_H_INCLUDED
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
//Include your LCD graphics library here
#include "dogm-graphic.h"
//declare font info structure defined below
struct font_info;
typedef const struct font_info * FONT_P;
/*****************************************************************************
* BEGIN CONFIG BLOCK
*****************************************************************************/
//Select which of the available features will be included
//If a font is not needed, then you don't need to put it to the Flash
//Just comment one of the defines below
#define FONTS_INCLUDE_font_proportional_16px font_proportional_16px
#define FONTS_INCLUDE_font_proportional_8px font_proportional_8px
#define FONTS_INCLUDE_font_fixed_8px font_fixed_8px
#define FONTS_INCLUDE_font_fixed_16px font_fixed_16px
#define FONTS_INCLUDE_symbols_8px symbols_8px
#define FONTS_INCLUDE_symbols_16px symbols_16px
#define FONTS_INCLUDE_digits_24px digits_24px
#define FONTS_INCLUDE_digits_32px digits_32px
//Set to 1 to include functions for direct output of integer & float values
#define INCLUDE_FLOAT_OUTPUT 0
#define INCLUDE_INTEGER_OUTPUT 1
/*****************************************************************************
* All font structures + verbose name defines
*****************************************************************************/
#ifdef FONTS_INCLUDE_font_fixed_8px
extern const struct font_info font_fixed_8px PROGMEM ;
#define FONT_FIXED_8 &font_fixed_8px
#endif
#ifdef FONTS_INCLUDE_font_fixed_16px
extern const struct font_info font_fixed_16px PROGMEM ;
#define FONT_FIXED_16 &font_fixed_16px
#endif
#ifdef FONTS_INCLUDE_font_proportional_16px
extern const struct font_info font_proportional_16px PROGMEM ;
#define FONT_PROP_16 &font_proportional_16px
#endif
#ifdef FONTS_INCLUDE_font_proportional_8px
extern const struct font_info font_proportional_8px PROGMEM;
#define FONT_PROP_8 &font_proportional_8px
#endif
#ifdef FONTS_INCLUDE_symbols_8px
extern const struct font_info symbols_8px PROGMEM;
#define FONT_SYMBOL_8 &symbols_8px
#endif
#ifdef FONTS_INCLUDE_symbols_16px
extern const struct font_info symbols_16px PROGMEM;
#define FONT_SYMBOL_16 &symbols_16px
#endif
#ifdef FONTS_INCLUDE_digits_24px
extern const struct font_info digits_24px PROGMEM;
#define FONT_DIGITS_24 &digits_24px
#endif
#ifdef FONTS_INCLUDE_digits_32px
extern const struct font_info digits_32px PROGMEM;
#define FONT_DIGITS_32 &digits_32px
#endif
//Assign real functions, provided by the LCD library to these macros
//used within the font generator
#define LCD_MOVE(x,y) lcd_move_xy((x),(y)) //relative cursor movement
#define LCD_MOVE_TO(x,y) lcd_moveto_xy((x),(y)) //absolute cursor movement
#define LCD_WRITE(x) lcd_data((x)) //write data to display
//Functions to read the current position as provided by the LCD library
#define LCD_CURRENT_COL() lcd_get_position_column()
#define LCD_CURRENT_PAGE() lcd_get_position_page()
/******************************************************************************
* END CONFIG BLOCK
*****************************************************************************/
/******************************************************************************
* Internal Functions to locate and display characters
*****************************************************************************/
/*
PGM_P font_data (FONT_P font);
PGM_P font_widthtable (FONT_P font);
uint8_t font_get_height_bytes (FONT_P font);
uint8_t font_get_type (FONT_P font);
uint8_t font_get_char_width (FONT_P font, char character);
int16_t font_get_char_number (FONT_P font, char character);
PGM_P font_get_char_position (FONT_P font, char character);
*/
/******************************************************************************
* Functions to display characters and strings
*****************************************************************************/
//where font is a pointer to a FONT_P struct,
//style is one or more of the defines for different font sizes & styles shown below
//and str and c are the string or the character to be displayed
uint16_t lcd_put_string (FONT_P font, uint8_t style, char* str);
uint16_t lcd_put_string_length(FONT_P font, uint8_t style, char* str, uint8_t length);
uint16_t lcd_put_string_P (FONT_P font, uint8_t style, PGM_P str);
uint8_t lcd_put_char (FONT_P font, uint8_t style, char c);
uint16_t lcd_put_string_xy_P (FONT_P font, uint8_t style, PGM_P str, uint8_t page, uint8_t col);
uint8_t lcd_put_char_xy (FONT_P font, uint8_t style, char character, uint8_t page, uint8_t col);
void lcd_set_font (FONT_P font, uint8_t style);
uint8_t lcd_putc (char c);
uint8_t lcd_putc_xy (char c, uint8_t page, uint8_t col);
uint16_t lcd_putstr (char* str);
uint16_t lcd_putstr_P (PGM_P str);
uint16_t lcd_putstr_xy_P (PGM_P str, uint8_t page, uint8_t col);
#if INCLUDE_INTEGER_OUTPUT == 1
uint16_t lcd_put_long (int32_t integer);
uint16_t lcd_put_int (int16_t integer);
uint16_t lcd_put_uint (uint16_t integer);
uint16_t lcd_put_short(int8_t integer);
#endif
#if INCLUDE_FLOAT_OUTPUT == 1
uint16_t lcd_put_float (float integer);
#endif
/******************************************************************************
* Define font styles
* These names are used as the style attribute to above put* functions
*****************************************************************************/
#define NORMAL 0
#define NORMAL_SIZE 0
#define DOUBLE_HEIGHT 1 //double the height of each character
#define DOUBLE_WIDTH 2 //double the width of each character
#define DOUBLE_SIZE 3 //double height and double width
#define INVERT 4 //draw white letters with black background
#define WRAP 8 //wrap around text that does not fit in the current line
#define UNDERLINE 16 //underline the text
#define SPACING 32 //increase spacing between character
//used for internal functions:
#define DOUBLE_HEIGHT_BIT 1
#define DOUBLE_WIDTH_BIT 2
#define INVERT_BIT 4
#define WRAP_BIT 8
#define UNDERLINE_BIT 16
/******************************************************************************
* Documentation: Example Font File
* A c-template to use with Hagen Reddmanns font generator is
* included (template_simplefont.c)
*****************************************************************************/
/*
#include "font.h"
#ifdef %FONT INCLUDE IDENTIFIER%
const char fontname_length[] PROGMEM = {...}
const char fontname_data[] PROGMEM = {...}
const struct font_info fontname PROGMEM = {...};
#endif
*/
/******************************************************************************
* Structure holds information about fonts
*****************************************************************************/
struct font_info {
uint16_t size; //size of data array
uint8_t width; //(maximum) width of character
uint8_t height; //height of character
uint8_t firstchar; //the number of the first included character (often 0x20)
uint8_t lastchar; //the last included character (often 0xFF)
PGM_VOID_P widthtable; //Pointer to the table holding character widths (NULL for monospaced fonts)
PGM_VOID_P data; //Pointer to data arrray
};
#endif