/*
 *  Keybord Events
 *  --------------
 *  This program prints out messages for many kinds of
 *  keyboard events. It handles both normal ASCII keys
 *  and other kinds of keyboard events, such as arrow
 *  keys, function keys, page-up, page-down, home, etc.
 */

#include <graphapp.h>
#include <ctype.h>

void handle_keydown(drawing d, int key)
{
	if (isprint(key))
		printf("Key: %c", key);
	else if (key == BKSP)
		printf("Backspace");
	else if (key == ESC)
		printf("Escape");
	else if (key == '\t')
		printf("Tab");
	else if (key == '\n')
		printf("Newline");
	else
		printf("Non-printable ASCII key");
	printf("\n");
}

void handle_keyaction(drawing d, int key)
{
	if (key == ENTER)
		printf("Enter");
	else if (key == HOME)
		printf("Home");
	else if (key == END)
		printf("End");
	else if (key == PGUP)
		printf("Page Up");
	else if (key == PGDN)
		printf("Page Down");
	else if (key == INS)
		printf("Insert");
	else if (key == DEL)
		printf("Delete");
	else if (key == LEFT)
		printf("Left Arrow");
	else if (key == RIGHT)
		printf("Right Arrow");
	else if (key == UP)
		printf("Up Arrow");
	else if (key == DOWN)
		printf("Down Arrow");
	else if ((key >= F1) && (key <= F9))
		printf("Function key %c", (key - F1 + '1'));
	else if (key == F10)
		printf("Function key 10");
	printf("\n");
}

void main(void)
{
	window w;
	drawing d;

	w = newwindow("Use the Mouse", rect(50,50,200,200), StandardWindow);
	d = newdrawing(rect(10,10,180,180), NULL);
	setbackground(w, LightGrey);

	setkeydown(d, handle_keydown);
	setkeyaction(d, handle_keyaction);

	show(w);
	mainloop();
}