/*************************************************************************/
/*  texture_layered_editor_plugin.h                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#ifndef TEXTURE_LAYERED_EDITOR_PLUGIN_H
#define TEXTURE_LAYERED_EDITOR_PLUGIN_H

#include "editor/editor_plugin.h"
#include "scene/gui/spin_box.h"
#include "scene/resources/shader.h"
#include "scene/resources/texture.h"

class TextureLayeredEditor : public Control {
	GDCLASS(TextureLayeredEditor, Control);

	SpinBox *layer = nullptr;
	Label *info = nullptr;
	Ref<TextureLayered> texture;

	Ref<Shader> shaders[3];
	Ref<ShaderMaterial> materials[3];

	float x_rot = 0;
	float y_rot = 0;
	Control *texture_rect = nullptr;

	void _make_shaders();

	void _update_material();
	bool setting;
	void _layer_changed(double) {
		if (!setting) {
			_update_material();
		}
	}

	void _texture_rect_update_area();
	void _texture_rect_draw();

	void _texture_changed();

protected:
	void _notification(int p_what);
	virtual void gui_input(const Ref<InputEvent> &p_event) override;
	static void _bind_methods();

public:
	void edit(Ref<TextureLayered> p_texture);
	TextureLayeredEditor();
	~TextureLayeredEditor();
};

class EditorInspectorPluginLayeredTexture : public EditorInspectorPlugin {
	GDCLASS(EditorInspectorPluginLayeredTexture, EditorInspectorPlugin);

public:
	virtual bool can_handle(Object *p_object) override;
	virtual void parse_begin(Object *p_object) override;
};

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

public:
	virtual String get_name() const override { return "TextureLayered"; }

	TextureLayeredEditorPlugin();
};

#endif // TEXTURE_EDITOR_PLUGIN_H