Exemplo n.º 1
0
void GraphEdit::_connections_layer_draw() {

	Color activity_color = get_color("activity");
	//draw connections
	List<List<Connection>::Element *> to_erase;
	for (List<Connection>::Element *E = connections.front(); E; E = E->next()) {

		NodePath fromnp(E->get().from);

		Node *from = get_node(fromnp);
		if (!from) {
			to_erase.push_back(E);
			continue;
		}

		GraphNode *gfrom = Object::cast_to<GraphNode>(from);

		if (!gfrom) {
			to_erase.push_back(E);
			continue;
		}

		NodePath tonp(E->get().to);
		Node *to = get_node(tonp);
		if (!to) {
			to_erase.push_back(E);
			continue;
		}

		GraphNode *gto = Object::cast_to<GraphNode>(to);

		if (!gto) {
			to_erase.push_back(E);
			continue;
		}

		Vector2 frompos = gfrom->get_connection_output_position(E->get().from_port) + gfrom->get_offset() * zoom;
		Color color = gfrom->get_connection_output_color(E->get().from_port);
		Vector2 topos = gto->get_connection_input_position(E->get().to_port) + gto->get_offset() * zoom;
		Color tocolor = gto->get_connection_input_color(E->get().to_port);

		if (E->get().activity > 0) {
			color = color.linear_interpolate(activity_color, E->get().activity);
			tocolor = tocolor.linear_interpolate(activity_color, E->get().activity);
		}
		_draw_cos_line(connections_layer, frompos, topos, color, tocolor);
	}

	while (to_erase.size()) {
		connections.erase(to_erase.front()->get());
		to_erase.pop_front();
	}
}
Exemplo n.º 2
0
void GraphEdit::_update_scroll() {

	if (updating)
		return;

	updating = true;

	set_block_minimum_size_adjust(true);

	Rect2 screen;
	for (int i = 0; i < get_child_count(); i++) {

		GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
		if (!gn)
			continue;

		Rect2 r;
		r.position = gn->get_offset() * zoom;
		r.size = gn->get_size() * zoom;
		screen = screen.merge(r);
	}

	screen.position -= get_size();
	screen.size += get_size() * 2.0;

	h_scroll->set_min(screen.position.x);
	h_scroll->set_max(screen.position.x + screen.size.x);
	h_scroll->set_page(get_size().x);
	if (h_scroll->get_max() - h_scroll->get_min() <= h_scroll->get_page())
		h_scroll->hide();
	else
		h_scroll->show();

	v_scroll->set_min(screen.position.y);
	v_scroll->set_max(screen.position.y + screen.size.y);
	v_scroll->set_page(get_size().y);

	if (v_scroll->get_max() - v_scroll->get_min() <= v_scroll->get_page())
		v_scroll->hide();
	else
		v_scroll->show();

	set_block_minimum_size_adjust(false);

	if (!awaiting_scroll_offset_update) {
		call_deferred("_update_scroll_offset");
		awaiting_scroll_offset_update = true;
	}

	updating = false;
}
Exemplo n.º 3
0
void GraphEdit::_update_scroll_offset() {

	set_block_minimum_size_adjust(true);

	for (int i = 0; i < get_child_count(); i++) {

		GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
		if (!gn)
			continue;

		Point2 pos = gn->get_offset() * zoom;
		pos -= Point2(h_scroll->get_value(), v_scroll->get_value());
		gn->set_position(pos);
		if (gn->get_scale() != Vector2(zoom, zoom)) {
			gn->set_scale(Vector2(zoom, zoom));
		}
	}

	connections_layer->set_position(-Point2(h_scroll->get_value(), v_scroll->get_value()));
	set_block_minimum_size_adjust(false);
	awaiting_scroll_offset_update = false;
}