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/****************************************************************************
**
** Copyright (C) 2016 Jochen Becher
** 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 <QGraphicsItem>
#include "qmt/diagram_scene/capabilities/moveable.h"
#include "qmt/diagram_scene/capabilities/selectable.h"
#include "qmt/diagram_scene/capabilities/windable.h"
QT_BEGIN_NAMESPACE
class QGraphicsSimpleTextItem;
class QPainterPath;
QT_END_NAMESPACE
namespace qmt {
class Uid;
class DRelation;
class DiagramSceneModel;
class ArrowItem;
class StereotypesItem;
class PathSelectionItem;
class Style;
class RelationItem :
public QGraphicsItem,
public IMoveable,
public ISelectable,
public IWindable
{
class ArrowConfigurator;
public:
RelationItem(DRelation *relation, DiagramSceneModel *diagramSceneModel,
QGraphicsItem *parent = nullptr);
~RelationItem() override;
DRelation *relation() const { return m_relation; }
QRectF boundingRect() const override;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
QPainterPath shape() const override;
void moveDelta(const QPointF &delta) override;
void alignItemPositionToRaster(double rasterWidth, double rasterHeight) override;
bool isSecondarySelected() const override;
void setSecondarySelected(bool secondarySelected) override;
bool isFocusSelected() const override;
void setFocusSelected(bool focusSelected) override;
QRectF getSecondarySelectionBoundary() override;
void setBoundarySelected(const QRectF &boundary, bool secondary) override;
QPointF grabHandle(int index) override;
void insertHandle(int beforeIndex, const QPointF &pos, double rasterWidth, double rasterHeight) override;
void deleteHandle(int index) override;
void setHandlePos(int index, const QPointF &pos) override;
void dropHandle(int index, double rasterWidth, double rasterHeight) override;
virtual void update();
protected:
virtual void update(const Style *style);
void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
private:
const Style *adaptedStyle();
QPointF calcEndPoint(const Uid &end, const Uid &otherEnd, int nearestIntermediatePointIndex);
QPointF calcEndPoint(const Uid &end, const QPointF &otherEndPos,
int nearestIntermediatePointIndex);
DRelation *m_relation = nullptr;
protected:
DiagramSceneModel *m_diagramSceneModel = nullptr;
bool m_isSecondarySelected = false;
bool m_isFocusSelected = false;
ArrowItem *m_arrow = nullptr;
QGraphicsSimpleTextItem *m_name = nullptr;
StereotypesItem *m_stereotypes = nullptr;
PathSelectionItem *m_selectionHandles = nullptr;
static bool m_grabbedEndA;
static bool m_grabbedEndB;
static QPointF m_grabbedEndPos;
};
} // namespace qmt
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