/*
* Arrow keys move cursor, return location at current on non-arrow key.
*/
static PAIR *
selectcell(WINDOW *parent, int uli, int ulj, int lri, int lrj)
{
static PAIR res; /* result cell */
int si = lri - uli + 1; /* depth of the select area */
int sj = lrj - ulj + 1; /* width of the select area */
int i = 0, j = 0; /* offsets into the select area */
res.y = uli;
res.x = ulj;
for (;;) {
tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d",
uli, ulj,
lri, lrj,
uli + i, ulj + j);
wmove(parent, uli + i, ulj + j);
switch (wgetch(parent)) {
case KEY_UP:
i += si - 1;
break;
case KEY_DOWN:
i++;
break;
case KEY_LEFT:
j += sj - 1;
break;
case KEY_RIGHT:
j++;
break;
case QUIT:
case ESCAPE:
return ((PAIR *) 0);
#ifdef NCURSES_MOUSE_VERSION
case KEY_MOUSE:
{
MEVENT event;
getmouse(&event);
if (event.y > uli && event.x > ulj) {
i = event.y - uli;
j = event.x - ulj;
} else {
beep();
break;
}
}
/* FALLTHRU */
#endif
default:
res.y = uli + i;
res.x = ulj + j;
return (&res);
}
i %= si;
j %= sj;
}
}
/*
* Arrow keys move cursor, return location at current on non-arrow key.
*/
static PAIR *
selectcell(WINDOW *parent,
WINDOW *child,
int uli, int ulj,
int lri, int lrj,
bool relative,
bool * more)
{
static PAIR res; /* result cell */
int si = lri - uli + 1; /* depth of the select area */
int sj = lrj - ulj + 1; /* width of the select area */
int i = 0, j = 0; /* offsets into the select area */
res.y = uli;
res.x = ulj;
if (child != 0) {
if (relative) {
getparyx(child, i, j);
} else {
getbegyx(child, i, j);
i -= uli + getbegy(parent);
j -= ulj + getbegx(parent);
}
}
if (more)
*more = FALSE;
for (;;) {
bool moved = FALSE;
tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d -> %d,%d",
uli, ulj,
lri, lrj,
i, j,
uli + i, ulj + j);
wmove(parent, uli + i, ulj + j);
switch (wgetch(parent)) {
case KEY_UP:
i += si - 1;
moved = TRUE;
break;
case KEY_DOWN:
i++;
moved = TRUE;
break;
case KEY_LEFT:
j += sj - 1;
moved = TRUE;
break;
case KEY_RIGHT:
j++;
moved = TRUE;
break;
case QUIT:
case ESCAPE:
return ((PAIR *) 0);
#ifdef NCURSES_MOUSE_VERSION
case KEY_MOUSE:
{
MEVENT event;
getmouse(&event);
if (event.y > uli && event.x > ulj) {
if (parent != stdscr) {
i = event.y - getbegy(parent) - uli;
j = event.x - getbegx(parent) - ulj;
} else {
i = event.y - uli;
j = event.x - ulj;
}
} else {
beep();
break;
}
}
/* FALLTHRU */
#endif
default:
res.y = uli + i;
res.x = ulj + j;
return (&res);
}
if (si <= 0)
i = 0;
else
i %= si;
if (sj <= 0)
j = 0;
else
j %= sj;
/*
* If the caller can handle continuous movement, return the result.
*/
if (moved && more) {
*more = TRUE;
res.y = uli + i;
res.x = ulj + j;
return (&res);
}
}
}
