text: /*************************************************************************/
  /*  graph_node.cpp                                                       */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #include "graph_node.h"
  
  #include "core/method_bind_ext.gen.inc"
  
  bool GraphNode::_set(const StringName &p_name, const Variant &p_value) {
  
  	if (!p_name.operator String().begins_with("slot/"))
  		return false;
  
  	int idx = p_name.operator String().get_slice("/", 1).to_int();
  	String what = p_name.operator String().get_slice("/", 2);
  
  	Slot si;
  	if (slot_info.has(idx))
  		si = slot_info[idx];
  
  	if (what == "left_enabled")
  		si.enable_left = p_value;
  	else if (what == "left_type")
  		si.type_left = p_value;
  	else if (what == "left_color")
  		si.color_left = p_value;
  	else if (what == "right_enabled")
  		si.enable_right = p_value;
  	else if (what == "right_type")
  		si.type_right = p_value;
  	else if (what == "right_color")
  		si.color_right = p_value;
  	else
  		return false;
  
  	set_slot(idx, si.enable_left, si.type_left, si.color_left, si.enable_right, si.type_right, si.color_right);
  	update();
  	return true;
  }
  
  bool GraphNode::_get(const StringName &p_name, Variant &r_ret) const {
  
  	if (!p_name.operator String().begins_with("slot/")) {
  		return false;
  	}
  
  	int idx = p_name.operator String().get_slice("/", 1).to_int();
  	String what = p_name.operator String().get_slice("/", 2);
  
  	Slot si;
  	if (slot_info.has(idx))
  		si = slot_info[idx];
  
  	if (what == "left_enabled")
  		r_ret = si.enable_left;
  	else if (what == "left_type")
  		r_ret = si.type_left;
  	else if (what == "left_color")
  		r_ret = si.color_left;
  	else if (what == "right_enabled")
  		r_ret = si.enable_right;
  	else if (what == "right_type")
  		r_ret = si.type_right;
  	else if (what == "right_color")
  		r_ret = si.color_right;
  	else
  		return false;
  
  	return true;
  }
  void GraphNode::_get_property_list(List<PropertyInfo> *p_list) const {
  
  	int idx = 0;
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c || c->is_set_as_toplevel())
  			continue;
  
  		String base = "slot/" + itos(idx) + "/";
  
  		p_list->push_back(PropertyInfo(Variant::BOOL, base + "left_enabled"));
  		p_list->push_back(PropertyInfo(Variant::INT, base + "left_type"));
  		p_list->push_back(PropertyInfo(Variant::COLOR, base + "left_color"));
  		p_list->push_back(PropertyInfo(Variant::BOOL, base + "right_enabled"));
  		p_list->push_back(PropertyInfo(Variant::INT, base + "right_type"));
  		p_list->push_back(PropertyInfo(Variant::COLOR, base + "right_color"));
  
  		idx++;
  	}
  }
  
  void GraphNode::_resort() {
  
  	int sep = get_constant("separation");
  	Ref<StyleBox> sb = get_stylebox("frame");
  	bool first = true;
  
  	Size2 minsize;
  
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  		if (c->is_set_as_toplevel())
  			continue;
  
  		Size2i size = c->get_combined_minimum_size();
  
  		minsize.y += size.y;
  		minsize.x = MAX(minsize.x, size.x);
  
  		if (first)
  			first = false;
  		else
  			minsize.y += sep;
  	}
  
  	int vofs = 0;
  	int w = get_size().x - sb->get_minimum_size().x;
  
  	cache_y.clear();
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  		if (c->is_set_as_toplevel())
  			continue;
  
  		Size2i size = c->get_combined_minimum_size();
  
  		Rect2 r(sb->get_margin(MARGIN_LEFT), sb->get_margin(MARGIN_TOP) + vofs, w, size.y);
  
  		fit_child_in_rect(c, r);
  		cache_y.push_back(vofs + size.y * 0.5);
  
  		vofs += size.y + sep;
  	}
  
  	update();
  	connpos_dirty = true;
  }
  
  bool GraphNode::has_point(const Point2 &p_point) const {
  
  	if (comment) {
  		Ref<StyleBox> comment = get_stylebox("comment");
  		Ref<Texture2D> resizer = get_icon("resizer");
  
  		if (Rect2(get_size() - resizer->get_size(), resizer->get_size()).has_point(p_point)) {
  			return true;
  		}
  
  		if (Rect2(0, 0, get_size().width, comment->get_margin(MARGIN_TOP)).has_point(p_point)) {
  			return true;
  		}
  
  		return false;
  
  	} else {
  		return Control::has_point(p_point);
  	}
  }
  
  void GraphNode::_notification(int p_what) {
  
  	switch (p_what) {
  		case NOTIFICATION_DRAW: {
  
  			Ref<StyleBox> sb;
  
  			if (comment) {
  				sb = get_stylebox(selected ? "commentfocus" : "comment");
  
  			} else {
  
  				sb = get_stylebox(selected ? "selectedframe" : "frame");
  			}
  
  			//sb=sb->duplicate();
  			//sb->call("set_modulate",modulate);
  			Ref<Texture2D> port = get_icon("port");
  			Ref<Texture2D> close = get_icon("close");
  			Ref<Texture2D> resizer = get_icon("resizer");
  			int close_offset = get_constant("close_offset");
  			int close_h_offset = get_constant("close_h_offset");
  			Color close_color = get_color("close_color");
  			Color resizer_color = get_color("resizer_color");
  			Ref<Font> title_font = get_font("title_font");
  			int title_offset = get_constant("title_offset");
  			int title_h_offset = get_constant("title_h_offset");
  			Color title_color = get_color("title_color");
  			Point2i icofs = -port->get_size() * 0.5;
  			int edgeofs = get_constant("port_offset");
  			icofs.y += sb->get_margin(MARGIN_TOP);
  
  			draw_style_box(sb, Rect2(Point2(), get_size()));
  
  			switch (overlay) {
  				case OVERLAY_DISABLED: {
  
  				} break;
  				case OVERLAY_BREAKPOINT: {
  
  					draw_style_box(get_stylebox("breakpoint"), Rect2(Point2(), get_size()));
  				} break;
  				case OVERLAY_POSITION: {
  					draw_style_box(get_stylebox("position"), Rect2(Point2(), get_size()));
  
  				} break;
  			}
  
  			int w = get_size().width - sb->get_minimum_size().x;
  
  			if (show_close)
  				w -= close->get_width();
  
  			draw_string(title_font, Point2(sb->get_margin(MARGIN_LEFT) + title_h_offset, -title_font->get_height() + title_font->get_ascent() + title_offset), title, title_color, w);
  			if (show_close) {
  				Vector2 cpos = Point2(w + sb->get_margin(MARGIN_LEFT) + close_h_offset, -close->get_height() + close_offset);
  				draw_texture(close, cpos, close_color);
  				close_rect.position = cpos;
  				close_rect.size = close->get_size();
  			} else {
  				close_rect = Rect2();
  			}
  
  			for (Map<int, Slot>::Element *E = slot_info.front(); E; E = E->next()) {
  
  				if (E->key() < 0 || E->key() >= cache_y.size())
  					continue;
  				if (!slot_info.has(E->key()))
  					continue;
  				const Slot &s = slot_info[E->key()];
  				//left
  				if (s.enable_left) {
  					Ref<Texture2D> p = port;
  					if (s.custom_slot_left.is_valid()) {
  						p = s.custom_slot_left;
  					}
  					p->draw(get_canvas_item(), icofs + Point2(edgeofs, cache_y[E->key()]), s.color_left);
  				}
  				if (s.enable_right) {
  					Ref<Texture2D> p = port;
  					if (s.custom_slot_right.is_valid()) {
  						p = s.custom_slot_right;
  					}
  					p->draw(get_canvas_item(), icofs + Point2(get_size().x - edgeofs, cache_y[E->key()]), s.color_right);
  				}
  			}
  
  			if (resizable) {
  				draw_texture(resizer, get_size() - resizer->get_size(), resizer_color);
  			}
  		} break;
  
  		case NOTIFICATION_SORT_CHILDREN: {
  
  			_resort();
  		} break;
  
  		case NOTIFICATION_THEME_CHANGED: {
  
  			minimum_size_changed();
  		} break;
  	}
  }
  
  void GraphNode::set_slot(int p_idx, bool p_enable_left, int p_type_left, const Color &p_color_left, bool p_enable_right, int p_type_right, const Color &p_color_right, const Ref<Texture2D> &p_custom_left, const Ref<Texture2D> &p_custom_right) {
  
  	ERR_FAIL_COND(p_idx < 0);
  
  	if (!p_enable_left && p_type_left == 0 && p_color_left == Color(1, 1, 1, 1) && !p_enable_right && p_type_right == 0 && p_color_right == Color(1, 1, 1, 1)) {
  		slot_info.erase(p_idx);
  		return;
  	}
  
  	Slot s;
  	s.enable_left = p_enable_left;
  	s.type_left = p_type_left;
  	s.color_left = p_color_left;
  	s.enable_right = p_enable_right;
  	s.type_right = p_type_right;
  	s.color_right = p_color_right;
  	s.custom_slot_left = p_custom_left;
  	s.custom_slot_right = p_custom_right;
  	slot_info[p_idx] = s;
  	update();
  	connpos_dirty = true;
  }
  
  void GraphNode::clear_slot(int p_idx) {
  
  	slot_info.erase(p_idx);
  	update();
  	connpos_dirty = true;
  }
  void GraphNode::clear_all_slots() {
  
  	slot_info.clear();
  	update();
  	connpos_dirty = true;
  }
  bool GraphNode::is_slot_enabled_left(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return false;
  	return slot_info[p_idx].enable_left;
  }
  
  int GraphNode::get_slot_type_left(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return 0;
  	return slot_info[p_idx].type_left;
  }
  
  Color GraphNode::get_slot_color_left(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return Color(1, 1, 1, 1);
  	return slot_info[p_idx].color_left;
  }
  
  bool GraphNode::is_slot_enabled_right(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return false;
  	return slot_info[p_idx].enable_right;
  }
  
  int GraphNode::get_slot_type_right(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return 0;
  	return slot_info[p_idx].type_right;
  }
  
  Color GraphNode::get_slot_color_right(int p_idx) const {
  
  	if (!slot_info.has(p_idx))
  		return Color(1, 1, 1, 1);
  	return slot_info[p_idx].color_right;
  }
  
  Size2 GraphNode::get_minimum_size() const {
  
  	Ref<Font> title_font = get_font("title_font");
  
  	int sep = get_constant("separation");
  	Ref<StyleBox> sb = get_stylebox("frame");
  	bool first = true;
  
  	Size2 minsize;
  	minsize.x = title_font->get_string_size(title).x;
  	if (show_close) {
  		Ref<Texture2D> close = get_icon("close");
  		minsize.x += sep + close->get_width();
  	}
  
  	for (int i = 0; i < get_child_count(); i++) {
  
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  		if (c->is_set_as_toplevel())
  			continue;
  
  		Size2i size = c->get_combined_minimum_size();
  
  		minsize.y += size.y;
  		minsize.x = MAX(minsize.x, size.x);
  
  		if (first)
  			first = false;
  		else
  			minsize.y += sep;
  	}
  
  	return minsize + sb->get_minimum_size();
  }
  
  void GraphNode::set_title(const String &p_title) {
  
  	if (title == p_title)
  		return;
  	title = p_title;
  	update();
  	_change_notify("title");
  	minimum_size_changed();
  }
  
  String GraphNode::get_title() const {
  
  	return title;
  }
  
  void GraphNode::set_offset(const Vector2 &p_offset) {
  
  	offset = p_offset;
  	emit_signal("offset_changed");
  	update();
  }
  
  Vector2 GraphNode::get_offset() const {
  
  	return offset;
  }
  
  void GraphNode::set_selected(bool p_selected) {
  	selected = p_selected;
  	update();
  }
  
  bool GraphNode::is_selected() {
  	return selected;
  }
  
  void GraphNode::set_drag(bool p_drag) {
  	if (p_drag)
  		drag_from = get_offset();
  	else
  		emit_signal("dragged", drag_from, get_offset()); //useful for undo/redo
  }
  
  Vector2 GraphNode::get_drag_from() {
  	return drag_from;
  }
  
  void GraphNode::set_show_close_button(bool p_enable) {
  
  	show_close = p_enable;
  	update();
  }
  bool GraphNode::is_close_button_visible() const {
  
  	return show_close;
  }
  
  void GraphNode::_connpos_update() {
  
  	int edgeofs = get_constant("port_offset");
  	int sep = get_constant("separation");
  
  	Ref<StyleBox> sb = get_stylebox("frame");
  	conn_input_cache.clear();
  	conn_output_cache.clear();
  	int vofs = 0;
  
  	int idx = 0;
  
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  		if (c->is_set_as_toplevel())
  			continue;
  
  		Size2i size = c->get_combined_minimum_size();
  
  		int y = sb->get_margin(MARGIN_TOP) + vofs;
  		int h = size.y;
  
  		if (slot_info.has(idx)) {
  
  			if (slot_info[idx].enable_left) {
  				ConnCache cc;
  				cc.pos = Point2i(edgeofs, y + h / 2);
  				cc.type = slot_info[idx].type_left;
  				cc.color = slot_info[idx].color_left;
  				conn_input_cache.push_back(cc);
  			}
  			if (slot_info[idx].enable_right) {
  				ConnCache cc;
  				cc.pos = Point2i(get_size().width - edgeofs, y + h / 2);
  				cc.type = slot_info[idx].type_right;
  				cc.color = slot_info[idx].color_right;
  				conn_output_cache.push_back(cc);
  			}
  		}
  
  		if (vofs > 0)
  			vofs += sep;
  		vofs += size.y;
  		idx++;
  	}
  
  	connpos_dirty = false;
  }
  
  int GraphNode::get_connection_input_count() {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	return conn_input_cache.size();
  }
  int GraphNode::get_connection_output_count() {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	return conn_output_cache.size();
  }
  
  Vector2 GraphNode::get_connection_input_position(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), Vector2());
  	Vector2 pos = conn_input_cache[p_idx].pos;
  	pos.x *= get_scale().x;
  	pos.y *= get_scale().y;
  	return pos;
  }
  
  int GraphNode::get_connection_input_type(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), 0);
  	return conn_input_cache[p_idx].type;
  }
  
  Color GraphNode::get_connection_input_color(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), Color());
  	return conn_input_cache[p_idx].color;
  }
  
  Vector2 GraphNode::get_connection_output_position(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), Vector2());
  	Vector2 pos = conn_output_cache[p_idx].pos;
  	pos.x *= get_scale().x;
  	pos.y *= get_scale().y;
  	return pos;
  }
  
  int GraphNode::get_connection_output_type(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), 0);
  	return conn_output_cache[p_idx].type;
  }
  
  Color GraphNode::get_connection_output_color(int p_idx) {
  
  	if (connpos_dirty)
  		_connpos_update();
  
  	ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), Color());
  	return conn_output_cache[p_idx].color;
  }
  
  void GraphNode::_gui_input(const Ref<InputEvent> &p_ev) {
  
  	Ref<InputEventMouseButton> mb = p_ev;
  	if (mb.is_valid()) {
  
  		ERR_FAIL_COND_MSG(get_parent_control() == NULL, "GraphNode must be the child of a GraphEdit node.");
  
  		if (mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
  
  			Vector2 mpos = Vector2(mb->get_position().x, mb->get_position().y);
  			if (close_rect.size != Size2() && close_rect.has_point(mpos)) {
  				//send focus to parent
  				get_parent_control()->grab_focus();
  				emit_signal("close_request");
  				accept_event();
  				return;
  			}
  
  			Ref<Texture2D> resizer = get_icon("resizer");
  
  			if (resizable && mpos.x > get_size().x - resizer->get_width() && mpos.y > get_size().y - resizer->get_height()) {
  
  				resizing = true;
  				resizing_from = mpos;
  				resizing_from_size = get_size();
  				accept_event();
  				return;
  			}
  
  			emit_signal("raise_request");
  		}
  
  		if (!mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
  			resizing = false;
  		}
  	}
  
  	Ref<InputEventMouseMotion> mm = p_ev;
  	if (resizing && mm.is_valid()) {
  		Vector2 mpos = mm->get_position();
  
  		Vector2 diff = mpos - resizing_from;
  
  		emit_signal("resize_request", resizing_from_size + diff);
  	}
  }
  
  void GraphNode::set_overlay(Overlay p_overlay) {
  
  	overlay = p_overlay;
  	update();
  }
  
  GraphNode::Overlay GraphNode::get_overlay() const {
  
  	return overlay;
  }
  
  void GraphNode::set_comment(bool p_enable) {
  
  	comment = p_enable;
  	update();
  }
  
  bool GraphNode::is_comment() const {
  
  	return comment;
  }
  
  void GraphNode::set_resizable(bool p_enable) {
  
  	resizable = p_enable;
  	update();
  }
  
  bool GraphNode::is_resizable() const {
  
  	return resizable;
  }
  
  void GraphNode::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("set_title", "title"), &GraphNode::set_title);
  	ClassDB::bind_method(D_METHOD("get_title"), &GraphNode::get_title);
  	ClassDB::bind_method(D_METHOD("_gui_input"), &GraphNode::_gui_input);
  
  	ClassDB::bind_method(D_METHOD("set_slot", "idx", "enable_left", "type_left", "color_left", "enable_right", "type_right", "color_right", "custom_left", "custom_right"), &GraphNode::set_slot, DEFVAL(Ref<Texture2D>()), DEFVAL(Ref<Texture2D>()));
  	ClassDB::bind_method(D_METHOD("clear_slot", "idx"), &GraphNode::clear_slot);
  	ClassDB::bind_method(D_METHOD("clear_all_slots"), &GraphNode::clear_all_slots);
  	ClassDB::bind_method(D_METHOD("is_slot_enabled_left", "idx"), &GraphNode::is_slot_enabled_left);
  	ClassDB::bind_method(D_METHOD("get_slot_type_left", "idx"), &GraphNode::get_slot_type_left);
  	ClassDB::bind_method(D_METHOD("get_slot_color_left", "idx"), &GraphNode::get_slot_color_left);
  	ClassDB::bind_method(D_METHOD("is_slot_enabled_right", "idx"), &GraphNode::is_slot_enabled_right);
  	ClassDB::bind_method(D_METHOD("get_slot_type_right", "idx"), &GraphNode::get_slot_type_right);
  	ClassDB::bind_method(D_METHOD("get_slot_color_right", "idx"), &GraphNode::get_slot_color_right);
  
  	ClassDB::bind_method(D_METHOD("set_offset", "offset"), &GraphNode::set_offset);
  	ClassDB::bind_method(D_METHOD("get_offset"), &GraphNode::get_offset);
  
  	ClassDB::bind_method(D_METHOD("set_comment", "comment"), &GraphNode::set_comment);
  	ClassDB::bind_method(D_METHOD("is_comment"), &GraphNode::is_comment);
  
  	ClassDB::bind_method(D_METHOD("set_resizable", "resizable"), &GraphNode::set_resizable);
  	ClassDB::bind_method(D_METHOD("is_resizable"), &GraphNode::is_resizable);
  
  	ClassDB::bind_method(D_METHOD("set_selected", "selected"), &GraphNode::set_selected);
  	ClassDB::bind_method(D_METHOD("is_selected"), &GraphNode::is_selected);
  
  	ClassDB::bind_method(D_METHOD("get_connection_output_count"), &GraphNode::get_connection_output_count);
  	ClassDB::bind_method(D_METHOD("get_connection_input_count"), &GraphNode::get_connection_input_count);
  
  	ClassDB::bind_method(D_METHOD("get_connection_output_position", "idx"), &GraphNode::get_connection_output_position);
  	ClassDB::bind_method(D_METHOD("get_connection_output_type", "idx"), &GraphNode::get_connection_output_type);
  	ClassDB::bind_method(D_METHOD("get_connection_output_color", "idx"), &GraphNode::get_connection_output_color);
  	ClassDB::bind_method(D_METHOD("get_connection_input_position", "idx"), &GraphNode::get_connection_input_position);
  	ClassDB::bind_method(D_METHOD("get_connection_input_type", "idx"), &GraphNode::get_connection_input_type);
  	ClassDB::bind_method(D_METHOD("get_connection_input_color", "idx"), &GraphNode::get_connection_input_color);
  
  	ClassDB::bind_method(D_METHOD("set_show_close_button", "show"), &GraphNode::set_show_close_button);
  	ClassDB::bind_method(D_METHOD("is_close_button_visible"), &GraphNode::is_close_button_visible);
  
  	ClassDB::bind_method(D_METHOD("set_overlay", "overlay"), &GraphNode::set_overlay);
  	ClassDB::bind_method(D_METHOD("get_overlay"), &GraphNode::get_overlay);
  
  	ADD_PROPERTY(PropertyInfo(Variant::STRING, "title"), "set_title", "get_title");
  	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "show_close"), "set_show_close_button", "is_close_button_visible");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resizable"), "set_resizable", "is_resizable");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selected"), "set_selected", "is_selected");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "comment"), "set_comment", "is_comment");
  	ADD_PROPERTY(PropertyInfo(Variant::INT, "overlay", PROPERTY_HINT_ENUM, "Disabled,Breakpoint,Position"), "set_overlay", "get_overlay");
  
  	ADD_SIGNAL(MethodInfo("offset_changed"));
  	ADD_SIGNAL(MethodInfo("dragged", PropertyInfo(Variant::VECTOR2, "from"), PropertyInfo(Variant::VECTOR2, "to")));
  	ADD_SIGNAL(MethodInfo("raise_request"));
  	ADD_SIGNAL(MethodInfo("close_request"));
  	ADD_SIGNAL(MethodInfo("resize_request", PropertyInfo(Variant::VECTOR2, "new_minsize")));
  
  	BIND_ENUM_CONSTANT(OVERLAY_DISABLED);
  	BIND_ENUM_CONSTANT(OVERLAY_BREAKPOINT);
  	BIND_ENUM_CONSTANT(OVERLAY_POSITION);
  }
  
  GraphNode::GraphNode() {
  
  	overlay = OVERLAY_DISABLED;
  	show_close = false;
  	connpos_dirty = true;
  	set_mouse_filter(MOUSE_FILTER_STOP);
  	comment = false;
  	resizable = false;
  	resizing = false;
  	selected = false;
  }
  