/*
	QGL OpenGLWindow
	Ivan Pelipenko peri4ko@yandex.ru

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser 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 Lesser General Public License for more details.

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

#include <QWindow>
#include <QOpenGLExtraFunctions>

class QPainter;
class QOpenGLContext;
class QOpenGLPaintDevice;


class OpenGLWindow: public QWindow, protected QOpenGLExtraFunctions
{
	Q_OBJECT
public:
	explicit OpenGLWindow(QWindow *parent = nullptr);
	~OpenGLWindow();

	virtual void render(QPainter *painter);
	virtual void render();

	virtual void initialize();

	QOpenGLContext * context() {return m_context;}

public slots:
	void renderLater();
	void renderNow();

protected:
	bool event(QEvent *event) override;

	void exposeEvent(QExposeEvent *event) override;

private:
	QOpenGLContext *m_context;
	QOpenGLPaintDevice *m_device;
};