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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Design Tooling
**
** 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 "curveeditorstyle.h"
#include "handleitem.h"
#include "keyframe.h"
#include "selectableitem.h"
#include <QGraphicsObject>
namespace QmlDesigner {
class HandleItem;
class KeyframeItem : public SelectableItem
{
Q_OBJECT
signals:
void redrawCurve();
void keyframeMoved(KeyframeItem *item, const QPointF &direction);
void handleMoved(KeyframeItem *frame, HandleItem::Slot slot, double angle, double deltaLength);
public:
KeyframeItem(QGraphicsItem *parent = nullptr);
KeyframeItem(const Keyframe &keyframe, QGraphicsItem *parent = nullptr);
~KeyframeItem() override;
enum { Type = ItemTypeKeyframe };
int type() const override;
QRectF boundingRect() const override;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
void lockedCallback() override;
Keyframe keyframe() const;
bool isUnified() const;
bool hasLeftHandle() const;
bool hasRightHandle() const;
bool hasActiveHandle() const;
HandleItem *leftHandle() const;
HandleItem *rightHandle() const;
CurveSegment segment(HandleItem::Slot slot) const;
QTransform transform() const;
void setHandleVisibility(bool visible);
void setComponentTransform(const QTransform &transform);
void setStyle(const CurveEditorStyle &style);
void setKeyframe(const Keyframe &keyframe);
void setDefaultInterpolation();
void toggleUnified();
void setActivated(bool active, HandleItem::Slot slot);
void setInterpolation(Keyframe::Interpolation interpolation);
void setLeftHandle(const QPointF &pos);
void setRightHandle(const QPointF &pos);
void moveKeyframe(const QPointF &direction);
void moveHandle(HandleItem::Slot slot, double deltaAngle, double deltaLength);
protected:
QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) override;
void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
void selectionCallback() override;
private:
void updatePosition(bool emit = true);
void updateHandle(HandleItem *handle, bool emit = true);
private:
QTransform m_transform;
KeyframeItemStyleOption m_style;
Keyframe m_frame;
HandleItem *m_left;
HandleItem *m_right;
QPointF m_validPos;
bool m_visibleOverride = true;
};
} // End namespace QmlDesigner.
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