void PopupMenu::_scroll(float p_factor, const Point2 &p_over) {
const float global_y = get_global_position().y;
int vseparation = get_constant("vseparation");
Ref<Font> font = get_font("font");
float dy = (vseparation + font->get_height()) * 3 * p_factor;
if (dy > 0 && global_y < 0)
dy = MIN(dy, -global_y - 1);
else if (dy < 0 && global_y + get_size().y > get_viewport_rect().size.y)
dy = -MIN(-dy, global_y + get_size().y - get_viewport_rect().size.y - 1);
set_position(get_position() + Vector2(0, dy));
Ref<InputEventMouseMotion> ie;
ie.instance();
ie->set_position(p_over - Vector2(0, dy));
_gui_input(ie);
}
void PopupMenu::_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (!k->is_pressed())
return;
switch (k->get_scancode()) {
case KEY_DOWN: {
for (int i = mouse_over + 1; i < items.size(); i++) {
if (i < 0 || i >= items.size())
continue;
if (!items[i].separator && !items[i].disabled) {
mouse_over = i;
update();
break;
}
}
} break;
case KEY_UP: {
for (int i = mouse_over - 1; i >= 0; i--) {
if (i < 0 || i >= items.size())
continue;
if (!items[i].separator && !items[i].disabled) {
mouse_over = i;
update();
break;
}
}
} break;
case KEY_ENTER:
case KEY_KP_ENTER: {
if (mouse_over >= 0 && mouse_over < items.size() && !items[mouse_over].separator) {
activate_item(mouse_over);
}
} break;
}
}
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (b->is_pressed())
return;
switch (b->get_button_index()) {
case BUTTON_WHEEL_DOWN: {
if (get_global_position().y + get_size().y > get_viewport_rect().size.y) {
int vseparation = get_constant("vseparation");
Ref<Font> font = get_font("font");
Point2 pos = get_position();
int s = (vseparation + font->get_height()) * 3;
pos.y -= (s * b->get_factor());
set_position(pos);
//update hover
Ref<InputEventMouseMotion> ie;
ie.instance();
ie->set_position(b->get_position() + Vector2(0, s));
_gui_input(ie);
}
} break;
case BUTTON_WHEEL_UP: {
if (get_global_position().y < 0) {
int vseparation = get_constant("vseparation");
Ref<Font> font = get_font("font");
Point2 pos = get_position();
int s = (vseparation + font->get_height()) * 3;
pos.y += (s * b->get_factor());
set_position(pos);
//update hover
Ref<InputEventMouseMotion> ie;
ie.instance();
ie->set_position(b->get_position() - Vector2(0, s));
_gui_input(ie);
}
} break;
case BUTTON_LEFT: {
int over = _get_mouse_over(b->get_position());
if (invalidated_click) {
invalidated_click = false;
break;
}
if (over < 0) {
hide();
break; //non-activable
}
if (items[over].separator || items[over].disabled)
break;
if (items[over].submenu != "") {
_activate_submenu(over);
return;
}
activate_item(over);
} break;
}
//update();
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (invalidated_click) {
moved += m->get_relative();
if (moved.length() > 4)
invalidated_click = false;
}
for (List<Rect2>::Element *E = autohide_areas.front(); E; E = E->next()) {
if (!Rect2(Point2(), get_size()).has_point(m->get_position()) && E->get().has_point(m->get_position())) {
call_deferred("hide");
return;
}
}
int over = _get_mouse_over(m->get_position());
int id = (over < 0 || items[over].separator || items[over].disabled) ? -1 : (items[over].ID >= 0 ? items[over].ID : over);
if (id < 0) {
mouse_over = -1;
update();
return;
}
if (items[over].submenu != "" && submenu_over != over) {
submenu_over = over;
submenu_timer->start();
}
if (over != mouse_over) {
mouse_over = over;
update();
}
}
}