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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef SQUIRCLE_H
#define SQUIRCLE_H
#include <QtQuick/QQuickItem>
#include <QtQuick/QQuickWindow>
#include <QOpenGLShaderProgram>
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>
//! [1]
class SquircleRenderer : public QObject, protected QOpenGLFunctions
{
Q_OBJECT
public:
~SquircleRenderer();
void setT(qreal t) { m_t = t; }
void setViewportSize(const QSize &size) { m_viewportSize = size; }
void setWindow(QQuickWindow *window) { m_window = window; }
public slots:
void init();
void paint();
private:
QSize m_viewportSize;
qreal m_t = 0.0;
QOpenGLShaderProgram *m_program = nullptr;
QQuickWindow *m_window = nullptr;
QOpenGLBuffer m_vbo;
};
//! [1]
//! [2]
class Squircle : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(qreal t READ t WRITE setT NOTIFY tChanged)
QML_ELEMENT
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:
void releaseResources() override;
qreal m_t;
SquircleRenderer *m_renderer;
};
//! [2]
#endif // SQUIRCLE_H
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