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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef SQUIRCLE_H
#define SQUIRCLE_H
#include <QtQuick/QQuickItem>
#include <QtGui/QOpenGLShaderProgram>
#include <QtGui/QOpenGLFunctions>
//! [1]
class SquircleRenderer : public QObject, protected QOpenGLFunctions
{
Q_OBJECT
public:
SquircleRenderer() : m_t(0), m_program(0) { }
~SquircleRenderer();
void setT(qreal t) { m_t = t; }
void setViewportSize(const QSize &size) { m_viewportSize = size; }
public slots:
void paint();
private:
QSize m_viewportSize;
qreal m_t;
QOpenGLShaderProgram *m_program;
};
//! [1]
//! [2]
class Squircle : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(qreal t READ t WRITE setT NOTIFY tChanged)
public:
Squircle();
qreal t() const { return m_t; }
void setT(qreal t);
signals:
void tChanged();
public slots:
void sync();
void cleanup();
private slots:
void handleWindowChanged(QQuickWindow *win);
private:
qreal m_t;
SquircleRenderer *m_renderer;
};
//! [2]
#endif // SQUIRCLE_H
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