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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef SPLINEEDITOR_H
#define SPLINEEDITOR_H
#include <QWidget>
#include <QMenu>
#include <QAction>
#include <QScrollArea>
#include <QEasingCurve>
#include <QHash>
class SegmentProperties;
class SplineEditor : public QWidget
{
Q_OBJECT
Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve NOTIFY easingCurveChanged);
public:
explicit SplineEditor(QWidget *parent = nullptr);
QString generateCode();
QStringList presetNames() const;
QWidget *pointListWidget();
void setControlPoint(int index, const QPointF &point)
{
m_controlPoints[index] = point;
update();
}
void setSmooth(int index, bool smooth)
{
m_smoothAction->setChecked(smooth);
smoothPoint(index * 3 + 2);
//update();
}
signals:
void easingCurveChanged();
void easingCurveCodeChanged(const QString &code);
public slots:
void setEasingCurve(const QEasingCurve &easingCurve);
void setPreset(const QString &name);
void setEasingCurve(const QString &code);
protected:
void paintEvent(QPaintEvent *) override;
void mousePressEvent(QMouseEvent *) override;
void mouseMoveEvent(QMouseEvent *) override;
void mouseReleaseEvent(QMouseEvent *) override;
#if QT_CONFIG(contextmenu)
void contextMenuEvent(QContextMenuEvent *) override;
#endif // contextmenu
void invalidate();
void invalidateSmoothList();
void invalidateSegmentProperties();
QEasingCurve easingCurve() const
{ return m_easingCurve; }
QHash<QString, QEasingCurve> presets() const;
private:
int findControlPoint(const QPoint &point);
bool isSmooth(int i) const;
void smoothPoint( int index);
void cornerPoint( int index);
void deletePoint(int index);
void addPoint(const QPointF point);
void initPresets();
void setupPointListWidget();
bool isControlPointSmooth(int i) const;
QEasingCurve m_easingCurve;
QVector<QPointF> m_controlPoints;
QVector<bool> m_smoothList;
int m_numberOfSegments;
int m_activeControlPoint;
bool m_mouseDrag;
QPoint m_mousePress;
QHash<QString, QEasingCurve> m_presets;
QMenu *m_pointContextMenu;
QMenu *m_curveContextMenu;
QAction *m_deleteAction;
QAction *m_smoothAction;
QAction *m_cornerAction;
QAction *m_addPoint;
QScrollArea *m_pointListWidget;
QList<SegmentProperties*> m_segmentProperties;
bool m_block;
};
#endif // SPLINEEDITOR_H
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