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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef RESIZEMANIPULATOR_H
#define RESIZEMANIPULATOR_H
#include <QWeakPointer>
#include "resizehandleitem.h"
#include <snapper.h>
#include "rewritertransaction.h"
#include "formeditorview.h"
namespace QmlDesigner {
class ResizeHandleItem;
class Model;
class ResizeManipulator
{
public:
enum Snapping {
UseSnapping,
UseSnappingAndAnchoring,
NoSnapping
};
ResizeManipulator(LayerItem *layerItem, FormEditorView *view);
~ResizeManipulator();
void setHandle(ResizeHandleItem *resizeHandle);
void removeHandle();
void begin(const QPointF& beginPoint);
void update(const QPointF& updatePoint, Snapping useSnapping);
void end();
void moveBy(double deltaX, double deltaY);
void clear();
bool isActive() const;
protected:
bool isInvalidSize(const QSizeF & size);
void deleteSnapLines();
ResizeHandleItem *resizeHandle();
void setSize(QmlItemNode itemNode, const QSizeF &size);
void setPosition(QmlItemNode itemNode, const QPointF &position);
private:
Snapper m_snapper;
QWeakPointer<FormEditorView> m_view;
QList<QGraphicsItem*> m_graphicsLineList;
ResizeController m_resizeController; // hold the controller so that the handle cant be deleted
QTransform m_beginFromSceneTransform;
QTransform m_beginToSceneTransform;
QTransform m_beginToParentTransform;
QRectF m_beginBoundingRect;
QPointF m_beginBottomRightPoint;
double m_beginTopMargin;
double m_beginLeftMargin;
double m_beginRightMargin;
double m_beginBottomMargin;
QWeakPointer<LayerItem> m_layerItem;
ResizeHandleItem *m_resizeHandle;
RewriterTransaction m_rewriterTransaction;
bool m_isActive;
};
}
#endif // RESIZEMANIPULATOR_H
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