pandemonium_engine/editor/plugins/path_editor_plugin.h

#ifndef PATH_EDITOR_PLUGIN_H
#define PATH_EDITOR_PLUGIN_H
/*************************************************************************/
/*  path_editor_plugin.h                                                 */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 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 "editor/spatial_editor_gizmos.h"
#include "editor/plugins/spatial_editor_plugin.h"
#include "editor/editor_plugin.h"

#include "core/math/vector2.h"
#include "core/math/vector3.h"
#include "core/object.h"
#include "core/reference.h"
#include "core/ustring.h"
#include "core/variant.h"

class Camera;
class EditorNode;
class InputEvent;
class MenuButton;
class Path;
class Separator;
class Spatial;
class ToolButton;

class PathSpatialGizmo : public EditorSpatialGizmo {
	GDCLASS(PathSpatialGizmo, EditorSpatialGizmo);

	Path *path;
	mutable Vector3 original;
	mutable float orig_in_length;
	mutable float orig_out_length;

public:
	virtual String get_handle_name(int p_idx) const;
	virtual Variant get_handle_value(int p_idx);
	virtual void set_handle(int p_idx, Camera *p_camera, const Point2 &p_point);
	virtual void commit_handle(int p_idx, const Variant &p_restore, bool p_cancel = false);

	virtual void redraw();
	PathSpatialGizmo(Path *p_path = nullptr);
};

class PathSpatialGizmoPlugin : public EditorSpatialGizmoPlugin {
	GDCLASS(PathSpatialGizmoPlugin, EditorSpatialGizmoPlugin);

protected:
	Ref<EditorSpatialGizmo> create_gizmo(Spatial *p_spatial);

public:
	String get_name() const;
	int get_priority() const;
	PathSpatialGizmoPlugin();
};

class PathEditorPlugin : public EditorPlugin {
	GDCLASS(PathEditorPlugin, EditorPlugin);

	Separator *sep;
	ToolButton *curve_create;
	ToolButton *curve_edit;
	ToolButton *curve_del;
	ToolButton *curve_close;
	MenuButton *handle_menu;

	EditorNode *editor;

	Path *path;

	void _mode_changed(int p_idx);
	void _close_curve();
	void _handle_option_pressed(int p_option);
	bool handle_clicked;
	bool mirror_handle_angle;
	bool mirror_handle_length;

	enum HandleOption {
		HANDLE_OPTION_ANGLE,
		HANDLE_OPTION_LENGTH
	};

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

public:
	Path *get_edited_path() { return path; }

	static PathEditorPlugin *singleton;
	virtual EditorPlugin::AfterGUIInput forward_spatial_gui_input(Camera *p_camera, const Ref<InputEvent> &p_event);

	//virtual bool forward_gui_input(const InputEvent& p_event) { return collision_polygon_editor->forward_gui_input(p_event); }
	//virtual Ref<SpatialEditorGizmo> create_spatial_gizmo(Spatial *p_spatial);
	virtual String get_name() const { return "Path"; }
	bool has_main_screen() const { return false; }
	virtual void edit(Object *p_object);
	virtual bool handles(Object *p_object) const;
	virtual void make_visible(bool p_visible);

	bool mirror_angle_enabled() { return mirror_handle_angle; }
	bool mirror_length_enabled() { return mirror_handle_length; }
	bool is_handle_clicked() { return handle_clicked; }
	void set_handle_clicked(bool clicked) { handle_clicked = clicked; }

	PathEditorPlugin(EditorNode *p_node);
	~PathEditorPlugin();
};

#endif // PATH_EDITOR_PLUGIN_H