/*
    Stanley Designer
    Copyright (C) 2019  Ivan Pelipenko peri4ko@yandex.ru

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef SCENE_TREE_H
#define SCENE_TREE_H

#include <QWidget>
#include <QIcon>
#include "glscene.h"

class QTreeWidgetItem;

namespace Ui {
	class SceneTree;
}

class SceneTree: public QWidget
{
	Q_OBJECT
public:
	SceneTree(QWidget * parent = 0);
	~SceneTree();

	void assignQGLView(QGLView * v);

private:
	void changeEvent(QEvent * e);
	void rememberExpanded(QTreeWidgetItem * ti);
	void restoreExpanded(QTreeWidgetItem * ti);
	void makeObjetTree(ObjectBase * o, QTreeWidgetItem * ti);
	ObjectBase * itemObject(QTreeWidgetItem * item) const;
	int itemType(QTreeWidgetItem * item) const;
	bool filterTree(QTreeWidgetItem * ti, const QString & filter, int types);
	void checkButtons();

	Ui::SceneTree * ui;
	bool block_tree;
	QIcon icon_empty, icon_geo, icon_camera, icon_light, icon_vis[2];
	QSet<ObjectBase*> expanded_;
	QList<QTreeWidgetItem*> geo_items;
	QGLView * view;

private slots:
	void treeObjects_selectionCnahged();
	void on_treeObjects_itemChanged(QTreeWidgetItem * item, int column);
	void on_treeObjects_itemMoved  (QTreeWidgetItem * item, QTreeWidgetItem * new_parent);
	void on_buttonAddNode_clicked();
	void on_buttonAddLight_clicked();
	void on_buttonClone_clicked();
	void on_buttonUpdate_clicked() {objectsTreeChanged();}
	void on_buttonSelectParent_clicked();
	void on_buttonGroup_clicked();

	void removeObjects();
	void focusObjects();
	void objectsTreeChanged();
	void selectionChanged();
	void materialsChanged();
	void filter();
	void __objectDeleted(ObjectBase * o);

public slots:

signals:

private:

};

#endif // SCENE_TREE_H