#ifndef  DISPLAY_H
#define  DISPLAY_H


typedef unsigned char BYTE, *PBYTE;

//This array contains the data used to draw ascii characters space through Z (plus a few special characters at the end).
const BYTE code ascii_font[][7] = {
#include "ascii_font.h"
};

// define screens
#define CURRENT_SCREEN		0
#define SPLASH_SCREEN  		1
#define COMPASS_SCREEN 		2
#define STATUS_SCREEN  		3
#define NAVIGATION_SCREEN	4
#define CONTACT_SCREEN		5

// define cursor directions
#define CURSOR_UP		0
#define CURSOR_DOWN		1
#define CURSOR_LEFT		2
#define CURSOR_RIGHT	3

void wrtCommand(BYTE command);

void dispOn(void);

void setRWaddr(BYTE page, BYTE col);

void wrtData(BYTE pixels);

void display_putchar(BYTE ascii_character);

void invert_display_putchar(BYTE ascii_character);

void display_puthex(BYTE hex_digit);

void resetscreen(void);

void resetselectscreen(void);

void displayscreen(void);

void clrDisplay(void);

void InitializeSPI_Display_SD(void);

void InitializeDisplay(void);

void RefreshDisplay(void);

void write(char *text);

void ss_write(short startx, short endx, short y, unsigned char screen);

void writepos(char *text, unsigned char x, unsigned char y);

void writeln(char *text);

void writelnpos(char *text, unsigned char x, unsigned char y);

void moveCursor(unsigned char direction);

void enterPress(void);

void writeSplashScreen(void);

void writeContactListScreen(char *total);

void writeConfigurationScreen(void);

void writeStatusScreen(void);

void writeNavigationScreen(void);

void writeContactScreen(void);

void writeContactMapScreen(void);

void draw(unsigned char screen);


#endif