/*************************************************************************/
/*  graph_node.h                                                         */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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.                */
/*************************************************************************/
#ifndef GRAPH_NODE_H
#define GRAPH_NODE_H

#include "scene/gui/container.h"

class GraphNode : public Container {

	OBJ_TYPE(GraphNode,Container);
public:

	enum Overlay {
		OVERLAY_DISABLED,
		OVERLAY_BREAKPOINT,
		OVERLAY_POSITION
	};
private:

	struct Slot {
		bool enable_left;
		int type_left;
		Color color_left;
		bool enable_right;
		int type_right;
		Color color_right;
		Ref<Texture> custom_slot_left;
		Ref<Texture> custom_slot_right;


		Slot() { enable_left=false; type_left=0; color_left=Color(1,1,1,1); enable_right=false; type_right=0; color_right=Color(1,1,1,1); }
	};

	String title;
	bool show_close;
	Vector2 offset;

	Rect2 close_rect;

	Vector<int> cache_y;

	struct ConnCache {
		Vector2 pos;
		int type;
		Color color;
	};

	Vector<ConnCache> conn_input_cache;
	Vector<ConnCache> conn_output_cache;

	Map<int,Slot> slot_info;

	bool connpos_dirty;

	void _connpos_update();
	void _resort();

	Vector2 drag_from;
	bool selected;

	Overlay overlay;

	Color modulate;
protected:


	void _input_event(const InputEvent& p_ev);
	void _notification(int p_what);
	static void _bind_methods();

	bool _set(const StringName& p_name, const Variant& p_value);
	bool _get(const StringName& p_name,Variant &r_ret) const;
	void _get_property_list( List<PropertyInfo> *p_list) const;

public:




	void 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<Texture>& p_custom_left=Ref<Texture>(),const Ref<Texture>& p_custom_right=Ref<Texture>());
	void clear_slot(int p_idx);
	void clear_all_slots();
	bool is_slot_enabled_left(int p_idx) const;
	int get_slot_type_left(int p_idx) const;
	Color get_slot_color_left(int p_idx) const;
	bool is_slot_enabled_right(int p_idx) const;
	int get_slot_type_right(int p_idx) const;
	Color get_slot_color_right(int p_idx) const;

	void set_title(const String& p_title);
	String get_title() const;

	void set_offset(const Vector2& p_offset);
	Vector2 get_offset() const;

	void set_selected(bool p_selected);
	bool is_selected();

	void set_drag(bool p_drag);
	Vector2 get_drag_from();

	void set_show_close_button(bool p_enable);
	bool is_close_button_visible() const;

	int get_connection_input_count() ;
	int get_connection_output_count() ;
	Vector2 get_connection_input_pos(int p_idx);
	int get_connection_input_type(int p_idx);
	Color get_connection_input_color(int p_idx);
	Vector2 get_connection_output_pos(int p_idx);
	int get_connection_output_type(int p_idx);
	Color get_connection_output_color(int p_idx);


	void set_modulate(const Color& p_color);
	Color get_modulate() const;

	void set_overlay(Overlay p_overlay);
	Overlay get_overlay() const;

	virtual Size2 get_minimum_size() const;

	GraphNode();
};

VARIANT_ENUM_CAST( GraphNode::Overlay )

#endif // GRAPH_NODE_H