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/****************************************************************************
**
** Copyright (C) 2016 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 "formeditoritem.h"
#include "rewritertransaction.h"
#include "snapper.h"
#include "formeditorview.h"
#include <QPointer>
#include <QGraphicsItem>
#include <QHash>
#include <QPointF>
#include <QRectF>
namespace QmlDesigner {
class ModelNodeChangeSet;
class Model;
class MoveManipulator
{
public:
enum State {
UseCurrentState,
UseBaseState
};
MoveManipulator(LayerItem *layerItem, FormEditorView *view);
~MoveManipulator();
void setItems(const QList<FormEditorItem*> &itemList);
void setItem(FormEditorItem* item);
void synchronizeInstanceParent(const QList<FormEditorItem*> &itemList);
void synchronizeParent(const QList<FormEditorItem*> &itemList, const ModelNode &parentNode);
void begin(const QPointF& beginPoint);
void update(const QPointF& updatePoint, Snapper::Snapping useSnapping, State stateToBeManipulated = UseCurrentState);
void reparentTo(FormEditorItem *newParent);
void end();
void end(Snapper::Snapping useSnapping);
void moveBy(double deltaX, double deltaY);
void beginRewriterTransaction();
void endRewriterTransaction();
QPointF beginPoint() const;
void clear();
bool isActive() const;
protected:
void setOpacityForAllElements(qreal opacity);
QPointF findSnappingOffset(const QHash<FormEditorItem*, QRectF> &boundingRectHash);
void deleteSnapLines();
QHash<FormEditorItem*, QRectF> tanslatedBoundingRects(const QHash<FormEditorItem*, QRectF> &boundingRectHash,
const QPointF& offset,
const QTransform &transform);
QPointF calculateBoundingRectMovementOffset(const QPointF& updatePoint);
QRectF boundingRect(FormEditorItem* item, const QPointF& updatePoint);
void generateSnappingLines(const QHash<FormEditorItem*, QRectF> &boundingRectHash);
bool itemsCanReparented() const;
void adjustAnchoringOfItem(FormEditorItem *item);
void setDirectUpdateInNodeInstances(bool directUpdate);
private:
Snapper m_snapper;
QPointer<LayerItem> m_layerItem;
QPointer<FormEditorView> m_view;
QList<FormEditorItem*> m_itemList;
QHash<FormEditorItem*, QRectF> m_beginItemRectInSceneSpaceHash;
QHash<FormEditorItem*, QPointF> m_beginPositionInSceneSpaceHash;
QPointF m_beginPoint;
QHash<FormEditorItem*, double> m_beginTopMarginHash;
QHash<FormEditorItem*, double> m_beginLeftMarginHash;
QHash<FormEditorItem*, double> m_beginRightMarginHash;
QHash<FormEditorItem*, double> m_beginBottomMarginHash;
QHash<FormEditorItem*, double> m_beginHorizontalCenterHash;
QHash<FormEditorItem*, double> m_beginVerticalCenterHash;
QList<QGraphicsItem*> m_graphicsLineList;
bool m_isActive;
RewriterTransaction m_rewriterTransaction;
QPointF m_lastPosition;
};
} // namespace QmlDesigner
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