C++ GraphNode::get_pos方法代码示例

bool GraphEdit::_filter_input(const Point2 &p_point) {

	Ref<Texture> port = get_icon("port", "GraphNode");

	float grab_r_extend = 2.0;
	float grab_r = port->get_width() * 0.5 * grab_r_extend;
	for (int i = get_child_count() - 1; i >= 0; i--) {

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

		for (int j = 0; j < gn->get_connection_output_count(); j++) {

			Vector2 pos = gn->get_connection_output_pos(j) + gn->get_pos();
			if (pos.distance_to(p_point) < grab_r)
				return true;
		}

		for (int j = 0; j < gn->get_connection_input_count(); j++) {

			Vector2 pos = gn->get_connection_input_pos(j) + gn->get_pos();
			if (pos.distance_to(p_point) < grab_r) {
				return true;
			}
		}
	}

	return false;
}

void GraphEdit::_top_layer_draw() {

	_update_scroll();

	if (connecting) {

		Node *fromn = get_node(connecting_from);
		ERR_FAIL_COND(!fromn);
		GraphNode *from = fromn->cast_to<GraphNode>();
		ERR_FAIL_COND(!from);
		Vector2 pos;
		if (connecting_out)
			pos = from->get_connection_output_pos(connecting_index);
		else
			pos = from->get_connection_input_pos(connecting_index);
		pos += from->get_pos();

		Vector2 topos;
		topos = connecting_to;

		Color col = connecting_color;

		if (connecting_target) {
			col.r += 0.4;
			col.g += 0.4;
			col.b += 0.4;
		}

		if (!connecting_out) {
			SWAP(pos, topos);
		}
		_draw_cos_line(top_layer, pos, topos, col, col);
	}

	if (box_selecting)
		top_layer->draw_rect(box_selecting_rect, Color(0.7, 0.7, 1.0, 0.3));
}

void GraphEdit::_top_layer_draw() {

	_update_scroll();

	if (connecting) {

		Node *fromn = get_node(connecting_from);
		ERR_FAIL_COND(!fromn);
		GraphNode *from = fromn->cast_to<GraphNode>();
		ERR_FAIL_COND(!from);
		Vector2 pos;
		if (connecting_out)
			pos=from->get_connection_output_pos(connecting_index);
		else
			pos=from->get_connection_input_pos(connecting_index);
		pos+=from->get_pos();

		Vector2 topos;
		topos=connecting_to;

		Color col=connecting_color;

		if (connecting_target) {
			col.r+=0.4;
			col.g+=0.4;
			col.b+=0.4;
		}
		_draw_cos_line(pos,topos,col);
	}

	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 = from->cast_to<GraphNode>();

		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 = to->cast_to<GraphNode>();

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

		Vector2 frompos=gfrom->get_connection_output_pos(E->get().from_port)+gfrom->get_pos();
		Color color = gfrom->get_connection_output_color(E->get().from_port);
		Vector2 topos=gto->get_connection_input_pos(E->get().to_port)+gto->get_pos();
		_draw_cos_line(frompos,topos,color);

	}

	while(to_erase.size()) {
		connections.erase(to_erase.front()->get());
		to_erase.pop_front();
	}
	if (box_selecting)
		top_layer->draw_rect(box_selecting_rect,Color(0.7,0.7,1.0,0.3));
}

void GraphEdit::_top_layer_input(const InputEvent &p_ev) {

	float grab_r_extend = 2.0;
	if (p_ev.type == InputEvent::MOUSE_BUTTON && p_ev.mouse_button.button_index == BUTTON_LEFT && p_ev.mouse_button.pressed) {

		Ref<Texture> port = get_icon("port", "GraphNode");
		Vector2 mpos(p_ev.mouse_button.x, p_ev.mouse_button.y);
		float grab_r = port->get_width() * 0.5 * grab_r_extend;
		for (int i = get_child_count() - 1; i >= 0; i--) {

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

			for (int j = 0; j < gn->get_connection_output_count(); j++) {

				Vector2 pos = gn->get_connection_output_pos(j) + gn->get_pos();
				if (pos.distance_to(mpos) < grab_r) {

					if (valid_left_disconnect_types.has(gn->get_connection_output_type(j))) {
						//check disconnect
						for (List<Connection>::Element *E = connections.front(); E; E = E->next()) {

							if (E->get().from == gn->get_name() && E->get().from_port == j) {

								Node *to = get_node(String(E->get().to));
								if (to && to->cast_to<GraphNode>()) {

									connecting_from = E->get().to;
									connecting_index = E->get().to_port;
									connecting_out = false;
									connecting_type = to->cast_to<GraphNode>()->get_connection_input_type(E->get().to_port);
									connecting_color = to->cast_to<GraphNode>()->get_connection_input_color(E->get().to_port);
									connecting_target = false;
									connecting_to = pos;
									just_disconected = true;

									emit_signal("disconnection_request", E->get().from, E->get().from_port, E->get().to, E->get().to_port);
									to = get_node(String(connecting_from)); //maybe it was erased
									if (to && to->cast_to<GraphNode>()) {
										connecting = true;
									}
									return;
								}
							}
						}
					}

					connecting = true;
					connecting_from = gn->get_name();
					connecting_index = j;
					connecting_out = true;
					connecting_type = gn->get_connection_output_type(j);
					connecting_color = gn->get_connection_output_color(j);
					connecting_target = false;
					connecting_to = pos;
					just_disconected = false;
					return;
				}
			}

			for (int j = 0; j < gn->get_connection_input_count(); j++) {

				Vector2 pos = gn->get_connection_input_pos(j) + gn->get_pos();

				if (pos.distance_to(mpos) < grab_r) {

					if (right_disconnects || valid_right_disconnect_types.has(gn->get_connection_input_type(j))) {
						//check disconnect
						for (List<Connection>::Element *E = connections.front(); E; E = E->next()) {

							if (E->get().to == gn->get_name() && E->get().to_port == j) {

								Node *fr = get_node(String(E->get().from));
								if (fr && fr->cast_to<GraphNode>()) {

									connecting_from = E->get().from;
									connecting_index = E->get().from_port;
									connecting_out = true;
									connecting_type = fr->cast_to<GraphNode>()->get_connection_output_type(E->get().from_port);
									connecting_color = fr->cast_to<GraphNode>()->get_connection_output_color(E->get().from_port);
									connecting_target = false;
									connecting_to = pos;
									just_disconected = true;

									emit_signal("disconnection_request", E->get().from, E->get().from_port, E->get().to, E->get().to_port);
									fr = get_node(String(connecting_from)); //maybe it was erased
									if (fr && fr->cast_to<GraphNode>()) {
										connecting = true;
									}
									return;
								}
							}
						}
					}

					connecting = true;
					connecting_from = gn->get_name();
					connecting_index = j;
					connecting_out = false;
//.........这里部分代码省略.........