/*************************************************************************/
/*  polygon_2d_editor_plugin.h                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
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/* "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    */
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/* included in all copies or substantial portions of the Software.       */
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/*************************************************************************/

#ifndef POLYGON_2D_EDITOR_PLUGIN_H
#define POLYGON_2D_EDITOR_PLUGIN_H

#include "editor/plugins/abstract_polygon_2d_editor.h"

/**
	@author Juan Linietsky <reduzio@gmail.com>
*/
class Polygon2DEditor : public AbstractPolygon2DEditor {

	GDCLASS(Polygon2DEditor, AbstractPolygon2DEditor);

	enum Mode {

		MODE_EDIT_UV = MODE_CONT,
		UVEDIT_POLYGON_TO_UV,
		UVEDIT_UV_TO_POLYGON,
		UVEDIT_UV_CLEAR

	};

	enum UVMode {
		UV_MODE_EDIT_POINT,
		UV_MODE_MOVE,
		UV_MODE_ROTATE,
		UV_MODE_SCALE,
		UV_MODE_MAX
	};

	Polygon2D *node;

	UVMode uv_mode;
	AcceptDialog *uv_edit;
	ToolButton *uv_button[4];
	ToolButton *b_snap_enable;
	ToolButton *b_snap_grid;
	Control *uv_edit_draw;
	HSlider *uv_zoom;
	SpinBox *uv_zoom_value;
	HScrollBar *uv_hscroll;
	VScrollBar *uv_vscroll;
	MenuButton *uv_menu;
	TextureRect *uv_icon_zoom;

	Vector2 uv_draw_ofs;
	float uv_draw_zoom;
	PoolVector<Vector2> uv_prev;
	int uv_drag_index;
	bool uv_drag;
	UVMode uv_move_current;
	Vector2 uv_drag_from;
	bool updating_uv_scroll;

	AcceptDialog *error;

	ToolButton *button_uv;

	bool use_snap;
	bool snap_show_grid;
	Vector2 snap_offset;
	Vector2 snap_step;

	virtual void _menu_option(int p_option);

	void _uv_scroll_changed(float);
	void _uv_input(const Ref<InputEvent> &p_input);
	void _uv_draw();
	void _uv_mode(int p_mode);

	void _set_use_snap(bool p_use);
	void _set_show_grid(bool p_show);
	void _set_snap_off_x(float p_val);
	void _set_snap_off_y(float p_val);
	void _set_snap_step_x(float p_val);
	void _set_snap_step_y(float p_val);

protected:
	virtual Node2D *_get_node() const;
	virtual void _set_node(Node *p_polygon);

	virtual Vector2 _get_offset(int p_idx) const;

	void _notification(int p_what);
	static void _bind_methods();

	Vector2 snap_point(Vector2 p_target) const;

public:
	Polygon2DEditor(EditorNode *p_editor);
};

class Polygon2DEditorPlugin : public AbstractPolygon2DEditorPlugin {

	GDCLASS(Polygon2DEditorPlugin, AbstractPolygon2DEditorPlugin);

public:
	Polygon2DEditorPlugin(EditorNode *p_node);
};

#endif // POLYGON_2D_EDITOR_PLUGIN_H