int tvertical_scrollbar::on_bar(const tpoint& coordinate) const
{
// Not on the widget, leave.
if(static_cast<size_t>(coordinate.x) > get_width()
|| static_cast<size_t>(coordinate.y) > get_height()) {
return 0;
}
// we also assume the bar is over the entire width of the widget.
if(static_cast<size_t>(coordinate.y) < get_positioner_offset()) {
return -1;
} else if(static_cast<size_t>(coordinate.y) >get_positioner_offset() + get_positioner_length()) {
return 1;
} else {
return 0;
}
}
bool horizontal_scrollbar::on_positioner(const point& coordinate) const
{
SDL_Rect positioner_rect =
sdl::create_rect(get_positioner_offset(), 0, get_positioner_length(), get_height());
// Note we assume the positioner is over the entire height of the widget.
return sdl::point_in_rect(coordinate, positioner_rect);
}
int slider::on_bar(const point& coordinate) const
{
const unsigned x = static_cast<size_t>(coordinate.x);
const unsigned y = static_cast<size_t>(coordinate.y);
// Not on the widget, leave.
if(x > get_width() || y > get_height()) {
return 0;
}
// we also assume the bar is over the entire height of the widget.
if(x < get_positioner_offset()) {
return -1;
} else if(x > get_positioner_offset() + get_positioner_length()) {
return 1;
}
return 0;
}