text: /*************************************************************************/
  /*  polygon_2d_editor_plugin.h                                           */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 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.                */
  /*************************************************************************/
  
  #ifndef POLYGON_2D_EDITOR_PLUGIN_H
  #define POLYGON_2D_EDITOR_PLUGIN_H
  
  #include "editor/plugins/abstract_polygon_2d_editor.h"
  #include "scene/gui/scroll_container.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,
  		UVEDIT_GRID_SETTINGS
  	};
  
  	enum UVMode {
  		UV_MODE_CREATE,
  		UV_MODE_CREATE_INTERNAL,
  		UV_MODE_REMOVE_INTERNAL,
  		UV_MODE_EDIT_POINT,
  		UV_MODE_MOVE,
  		UV_MODE_ROTATE,
  		UV_MODE_SCALE,
  		UV_MODE_ADD_POLYGON,
  		UV_MODE_REMOVE_POLYGON,
  		UV_MODE_PAINT_WEIGHT,
  		UV_MODE_CLEAR_WEIGHT,
  		UV_MODE_MAX
  	};
  
  	ToolButton *uv_edit_mode[4];
  	Ref<ButtonGroup> uv_edit_group;
  
  	Polygon2D *node;
  
  	UVMode uv_mode;
  	AcceptDialog *uv_edit;
  	ToolButton *uv_button[UV_MODE_MAX];
  	ToolButton *b_snap_enable;
  	ToolButton *b_snap_grid;
  	Panel *uv_edit_draw;
  	HSlider *uv_zoom;
  	SpinBox *uv_zoom_value;
  	HScrollBar *uv_hscroll;
  	VScrollBar *uv_vscroll;
  	MenuButton *uv_menu;
  	TextureRect *uv_icon_zoom;
  
  	VBoxContainer *bone_scroll_main_vb;
  	ScrollContainer *bone_scroll;
  	VBoxContainer *bone_scroll_vb;
  	Button *sync_bones;
  	HSlider *bone_paint_strength;
  	SpinBox *bone_paint_radius;
  	Label *bone_paint_radius_label;
  	bool bone_painting;
  	int bone_painting_bone;
  	PoolVector<float> prev_weights;
  	Vector2 bone_paint_pos;
  	AcceptDialog *grid_settings;
  
  	void _sync_bones();
  	void _update_bone_list();
  
  	Vector2 uv_draw_ofs;
  	float uv_draw_zoom;
  	PoolVector<Vector2> points_prev;
  	PoolVector<Vector2> uv_create_uv_prev;
  	PoolVector<Vector2> uv_create_poly_prev;
  	PoolVector<Color> uv_create_colors_prev;
  	int uv_create_prev_internal_vertices;
  	Array uv_create_bones_prev;
  	Array polygons_prev;
  
  	Vector2 uv_create_to;
  	int point_drag_index;
  	bool uv_drag;
  	bool uv_create;
  	Vector<int> polygon_create;
  	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 _cancel_editing();
  
  	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);
  
  	void _uv_edit_mode_select(int p_mode);
  	void _uv_edit_popup_hide();
  	void _bone_paint_selected(int p_index);
  
  	int _get_polygon_count() const;
  
  protected:
  	virtual Node2D *_get_node() const;
  	virtual void _set_node(Node *p_polygon);
  
  	virtual Vector2 _get_offset(int p_idx) const;
  
  	virtual bool _has_uv() const { return true; };
  	virtual void _commit_action();
  
  	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
  