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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include "timelinemovableabstractitem.h"
#include <QGraphicsRectItem>
#include <QGraphicsWidget>
#include <QTimer>
namespace QmlDesigner {
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;
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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