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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "timelinemovableabstractitem.h"
#include <QGraphicsRectItem>
#include <QGraphicsWidget>
#include <QTimer>
QT_FORWARD_DECLARE_CLASS(QPainterPath)
namespace QmlDesigner {
class TimelineGraphicsScene;
class TimelineItem : public QGraphicsWidget
{
Q_OBJECT
public:
explicit TimelineItem(TimelineItem *parent = nullptr);
static void drawLine(QPainter *painter, qreal x1, qreal y1, qreal x2, qreal y2);
TimelineGraphicsScene *timelineScene() const;
};
class TimelineFrameHandle : public TimelineMovableAbstractItem
{
public:
explicit TimelineFrameHandle(TimelineItem *parent = nullptr);
void setHeight(int height);
void setPosition(qreal frame);
void setPositionInteractive(const QPointF &postion) override;
void commitPosition(const QPointF &point) override;
qreal position() const;
TimelineFrameHandle *asTimelineFrameHandle() override;
TimelineGraphicsScene *timelineGraphicsScene() const;
protected:
void scrollOffsetChanged() override;
QPainterPath shape() const override;
void paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget *widget = nullptr) override;
private:
QPointF mapFromGlobal(const QPoint &pos) const;
int computeScrollSpeed() const;
void callSetClampedXPosition(double x);
void scrollOutOfBounds();
void scrollOutOfBoundsMax();
void scrollOutOfBoundsMin();
private:
qreal m_position = 0;
QTimer m_timer;
};
} // namespace QmlDesigner
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