void uiupdatelistbox( a_list *list )
{
int maxline;
if( list->box == NULL ) {
return;
}
maxline = uilistsize( list );
list->box->row = list->choice;
list->box->gadget.total_size = maxline;
if( list->box->gadget.total_size < (int)list->box->area.height )
list->box->gadget.total_size = (int)list->box->area.height;
uisetgadget( &list->box->gadget, list->choice );
setstartline( list );
if( selectoutofrange( list->box ) ) {
list->box->line = list->box->row;
}
setstartline( list );
uidrawgadget( &list->box->gadget );
uipaintlistbox( list );
}
EVENT uilistbox( EVENT ev, a_list *list, bool permanent )
{
int listsize;
int maxline;
int newevent;
a_list_info *box;
int old_line;
ORD old_row;
bool close;
if( Dclick ) {
switch( ev ) {
case EV_MOUSE_PRESS :
Dclick = FALSE; /* must have gotten dlick without release */
/* fall through */
case EV_SCROLL_LINE_UP :
case EV_SCROLL_LINE_DOWN :
case EV_SCROLL_PAGE_UP :
case EV_SCROLL_PAGE_DOWN :
case EV_PAGE_UP :
case EV_PAGE_DOWN :
case EV_CURSOR_UP :
case EV_CURSOR_DOWN :
SelStart = FALSE;
break;
case EV_MOUSE_RELEASE :
Dclick = FALSE;
/* fall through */
default :
return( ev );
}
}
close = FALSE;
box = list->box;
old_line = box->line;
old_row = box->row;
listsize = uilistsize( list );
if( listsize > box->area.height ) {
maxline = listsize - box->area.height;
} else {
maxline = 0;
}
if( maxline > 0 ) {
ev = uigadgetfilter( ev, &box->gadget );
}
newevent = EV_NO_EVENT;
switch( ev ) {
case EV_MOUSE_DCLICK:
Dclick = TRUE;
case EV_MOUSE_PRESS:
case EV_MOUSE_RELEASE:
case EV_MOUSE_REPEAT:
case EV_MOUSE_DRAG:
{
int row, col, mpos;
mpos = getmouseregion( list, &row, &col );
newevent = ev;
if( mpos == R_SEL ) {
SelStart = TRUE;
box->row = (ORD) row - box->area.row;
box->row += box->line;
}
if( ev == EV_MOUSE_RELEASE ) {
if( mpos == R_SEL ) {
list->choice = list->box->row;
newevent = EV_LIST_BOX_CHANGED;
}
if( SelStart ) {
close = TRUE;
SelStart = FALSE;
}
} else if( ev == EV_MOUSE_PRESS || ev == EV_MOUSE_DCLICK ) {
if( mpos == R_SEL ) {
if( ev == EV_MOUSE_DCLICK ) {
newevent = EV_LIST_BOX_DCLICK;
}
} else {
close = TRUE;
}
} else if( mpos == R_UP && box->line > 0 && SelStart ) {
box->line--;
box->row--;
} else if( mpos == R_DOWN && box->line < maxline ) {
box->line++;
box->row++;
}
}
break;
case EV_CURSOR_UP :
if( box->row > 0 ) {
if( box->row == box->line ) {
box->line--;
}
box->row--;
list->choice = box->row;
newevent = EV_LIST_BOX_CHANGED;
}
if( selectoutofrange( box ) ) {
box->line = box->row;
setstartline( list );
}
break;
case EV_SCROLL_LINE_UP :
if( box->line > 0 ) {
box->line--;
}
break;
case EV_CURSOR_DOWN :
if( box->row < listsize - 1 ) {
if( box->row - box->line == box->area.height - 1
&& box->line < maxline ) {
++box->line;
}
++box->row;
list->choice = box->row;
newevent = EV_LIST_BOX_CHANGED;
}
if( selectoutofrange( box ) ) {
box->line = box->row;
setstartline( list );
}
break;
case EV_SCROLL_LINE_DOWN :
if( box->line < maxline ) {
box->line++;
}
break;
case EV_PAGE_UP :
if( box->row == box->line ) {
if( box->line < ( box->area.height - 1 ) ) {
box->line = 0;
} else {
box->line -= ( box->area.height - 1 );
}
box->row -= old_line - box->line;
} else {
box->row = box->line;
}
if( box->row != old_row ) {
list->choice = box->row;
newevent = EV_LIST_BOX_CHANGED;
}
break;
case EV_SCROLL_PAGE_UP :
if( box->line < box->area.height ) {
box->line = 0;
} else {
box->line -= box->area.height;
}
break;
case EV_PAGE_DOWN :
if( box->row == ( box->line + box->area.height - 1 ) ) {
box->line += box->area.height - 1;
if( box->line > maxline ) {
box->line = maxline;
}
box->row += ( box->line - old_line );
} else {
box->row = box->line + box->area.height - 1;
}
if( box->row != old_row ) {
list->choice = box->row;
newevent = EV_LIST_BOX_CHANGED;
}
break;
case EV_SCROLL_PAGE_DOWN :
box->line += box->area.height;
if( box->line > maxline ) {
box->line = maxline;
}
break;
case EV_SCROLL_VERTICAL :
box->line = box->gadget.pos;
break;
case EV_ALT_CURSOR_UP :
close = TRUE;
break;
default :
if( isalpha( ev ) ) {
newevent = charselect( ev, list );
} else {
newevent = ev;
}
break;
}
if( ( old_line != box->line ) && ( maxline > 0 ) ) {
uisetgadget( &box->gadget, box->line );
}
if( box->line != old_line || box->row != old_row ) {
uipaintlistbox( list );
}
if( !permanent && close ) {
uiendlistbox( list );
newevent = EV_LIST_BOX_CLOSED;
}
return( newevent );
}
static void set_slider( int pos )
{
uisetgadget( &vGadget, pos );
}
