kdganttconstraintgraphicsitem.cpp

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/****************************************************************************
**
** This file is part of the KD Chart library.
**
** SPDX-FileCopyrightText: 2001 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
**
** SPDX-License-Identifier: MIT
**
****************************************************************************/
 
#include "kdganttconstraintgraphicsitem.h"
#include "kdganttconstraintmodel.h"
#include "kdganttgraphicsscene.h"
#include "kdganttitemdelegate.h"
#include "kdganttsummaryhandlingproxymodel.h"
 
#include <QDebug>
#include <QPainter>
 
using namespace KDGantt;
 
ConstraintGraphicsItem::ConstraintGraphicsItem(const Constraint &c, QGraphicsItem *parent, GraphicsScene *scene)
    : QGraphicsItem(parent)
    , m_constraint(c)
{
    if (scene)
        scene->addItem(this);
    setPos(QPointF(0., 0.));
    setAcceptHoverEvents(false);
    setAcceptedMouseButtons(Qt::NoButton);
    setZValue(10.);
}
 
ConstraintGraphicsItem::~ConstraintGraphicsItem()
{
}
 
int ConstraintGraphicsItem::type() const
{
    return Type;
}
 
GraphicsScene *ConstraintGraphicsItem::scene() const
{
    return qobject_cast<GraphicsScene *>(QGraphicsItem::scene());
}
 
Constraint ConstraintGraphicsItem::proxyConstraint() const
{
    return Constraint(scene()->summaryHandlingModel()->mapFromSource(m_constraint.startIndex()),
                      scene()->summaryHandlingModel()->mapFromSource(m_constraint.endIndex()),
                      m_constraint.type(), m_constraint.relationType(), m_constraint.dataMap());
}
 
QRectF ConstraintGraphicsItem::boundingRect() const
{
    return scene()->itemDelegate()->constraintBoundingRect(m_start, m_end, m_constraint);
}
 
void ConstraintGraphicsItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
                                   QWidget *widget)
{
    Q_UNUSED(widget);
    // qDebug() << "ConstraintGraphicsItem::paint(...), c=" << m_constraint;
    scene()->itemDelegate()->paintConstraintItem(painter, *option, m_start, m_end, m_constraint);
}
 
QString ConstraintGraphicsItem::ganttToolTip() const
{
    return m_constraint.data(Qt::ToolTipRole).toString();
}
 
void ConstraintGraphicsItem::setStart(const QPointF &start)
{
    prepareGeometryChange();
    m_start = start;
    update();
}
 
void ConstraintGraphicsItem::setEnd(const QPointF &end)
{
    prepareGeometryChange();
    m_end = end;
    update();
}
 
void ConstraintGraphicsItem::updateItem(const QPointF &start, const QPointF &end)
{
    setStart(start);
    setEnd(end);
}