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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef SNAPPINGLINECREATOR_H
#define SNAPPINGLINECREATOR_H
#include "layeritem.h"
#include <QPair>
namespace QmlDesigner {
class FormEditorItem;
typedef QMultiMap<double, QPair<QRectF, FormEditorItem*> > SnapLineMap;
typedef QMapIterator<double, QPair<QRectF, FormEditorItem*> > SnapLineMapIterator;
class FormEditorItem;
class SnappingLineCreator
{
public:
SnappingLineCreator(FormEditorItem *formEditorItem);
void update(const QList<FormEditorItem*> &exceptionList,
FormEditorItem *transformationSpaceItem);
SnapLineMap topLines() const;
SnapLineMap bottomLines() const;
SnapLineMap leftLines() const;
SnapLineMap rightLines() const;
SnapLineMap horizontalCenterLines() const;
SnapLineMap verticalCenterLines() const;
SnapLineMap topOffsets() const;
SnapLineMap bottomOffsets() const;
SnapLineMap leftOffsets() const;
SnapLineMap rightOffsets() const;
void setMargins(double margin);
void setSpacing(double spacing);
protected:
void addLines(const QRectF &rectInSceneSpace, FormEditorItem *item);
void addOffsets(const QRectF &rectInSceneSpace, FormEditorItem *item);
void clearLines();
void generateLines(const QList<FormEditorItem*> &exceptionList,
FormEditorItem *transformationSpaceItem);
private:
SnapLineMap m_topLineMap;
SnapLineMap m_bottomLineMap;
SnapLineMap m_leftLineMap;
SnapLineMap m_rightLineMap;
SnapLineMap m_horizontalCenterLineMap;
SnapLineMap m_verticalCenterLineMap;
SnapLineMap m_topOffsetMap;
SnapLineMap m_bottomOffsetMap;
SnapLineMap m_leftOffsetMap;
SnapLineMap m_rightOffsetMap;
FormEditorItem *m_formEditorItem;
double m_topOffset;
double m_bottomOffset;
double m_leftOffset;
double m_rightOffset;
double m_topMargin;
double m_bottomMargin;
double m_leftMargin;
double m_rightMargin;
};
}
#endif // SNAPPINGLINECREATOR_H
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