/* Allows the user to edit a string with only certain characters allowed -
Returns TRUE if ESC was not pressed, FALSE is ESC was pressed. */
int editstring(char *s, char *legal, int maxlength)
{
int c, len = strlen(s), pos = len, insert = TRUE;
changecursor(insert);
do {
writef(1, 25, WHITE, 79, "%s", s);
gotoxy(pos + 1, 25);
switch(c = getkey()) {
case HOMEKEY :
pos = 0;
break;
case ENDKEY :
pos = len;
break;
case INSKEY :
insert = !insert;
changecursor(insert);
break;
case LEFTKEY :
if (pos > 0)
pos--;
break;
case RIGHTKEY :
if (pos < len)
pos++;
break;
case BS :
if (pos > 0) {
movmem(&s[pos], &s[pos - 1], len - pos + 1);
pos--;
len--;
}
break;
case DELKEY :
if (pos < len) {
movmem(&s[pos + 1], &s[pos], len - pos);
len--;
}
break;
case CR :
break;
case UPKEY :
break;
case DOWNKEY :
break;
case ESC :
break;
default :
if (((legal[0] == 0) || (strchr(legal, c) != NULL)) &&
((c >= ' ') && (c <= '~')) &&
(len < maxlength)) {
if (insert) {
memmove(&s[pos + 1], &s[pos], len - pos + 1);
len++;
}
else if (pos >= len)
len++;
s[pos++] = c;
}
break;
} /* switch */
s[len] = 0;
}
while ((c!=UPKEY)&&(c!=DOWNKEY)&&(c!=CR)&&(c!=ESC));
clearinput();
changecursor(FALSE);
setcursor(nocursor);
return(c != ESC);
} /* editstring */
void main()
{
int gd=DETECT,gm,button,x,y,area,i,choice;
char *p;
initgraph(&gd,&gm,"d:\\tc\\bgi");
if(initmouse()==0)
{
closegraph();
puts("Mouse not installed");
exit(1);
}
for(i=0;i<2;i++)
{
changecursor(c[i]);
showmouseptr();
getmousepos(&button,&x,&y);
area=imagesize(x-15,y-7,x+32,y+24);
(char)p=(char)malloc(area);
getimage(x-15,y-7,x+32,y+24,p);
putimage(i*48+1,1,p,COPY_PUT);
rectangle(i*60,0,(i+1)*60,45);
}
gotoxy(10,25);
printf("click on the rectangles to see the cursors \n \n \npress any key to exit");
choice=1;
disp(choice,p);
changecursor(c[choice-1]);
while(!kbhit())
{
getmousepos(&button,&x,&y);
if((button & 1)==1)
{
for(i=0;i<4;i++)
{
if(choice-1==i)
continue;
if(y>0 && y<33)
{
if(x>i*48 && x<(i+1)*48)
{
hidemouseptr();
disp(choice,p);
choice=i+1;
disp(choice,p);
changecursor(c[choice-1]);
showmouseptr();
}
}
}
}
}
getch();
}
