QGraphicsRectItem that shows an image QPixmap or QImage....

[gfxx]

Whit the help of some link I'm able to create a subcalss QGraphicsRectItem for responds to some mouse event into GraphicsScene .... It is Right ....
But now I'm not see the way to show into these new QGraphicsRectItem a Qpixmap or better QImage (as static var so better is QImage ....)

my .h code

#ifndef HIGHLIGHTRECTITEM_H
#define HIGHLIGHTRECTITEM_H

#include <QGraphicsRectItem>
#include <QPen>
#include <QLabel>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QGraphicsItem>
#include <QGraphicsRectItem>
#include <QGraphicsPolygonItem>
#include <QDesktopWidget>
#include <QDialog>
#include <QWidget>
#include <QWidgetAction>
#include <QWidgetData>
#include <QWidgetItem>
#include <QPixmap>
#include <QtWidgets/qstyle.h>
#include <QGraphicsRectItem>
#include <QGraphicsSceneMouseEvent>


class HighlightRectItem : public QGraphicsRectItem
{
public:
    static QImage boximg;
    HighlightRectItem(QGraphicsItem* parent = 0);
    bool selectRectItem;
    void setAnchorPoint(const QPointF& anchorPoint);


public slots:


protected:
    void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
protected slots:
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

private:
    QPen m_pen;
    QPointF anchorPoint;
    bool m_dragged;



signals:


};

#endif // HIGHLIGHTRECTITEM_H

and my .cpp code ...

#include "highlightrectitem.h"

#include <QPainter>

HighlightRectItem::HighlightRectItem(QGraphicsItem *parent) :
QGraphicsRectItem(parent), m_dragged(false)
{
    setFlags(QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsFocusable | QGraphicsItem::ItemSendsGeometryChanges);
    setAcceptHoverEvents(true);
    selectRectItem = false;

}


QImage HighlightRectItem::boximg("/home/niceimage-qt.png");


void HighlightRectItem::setAnchorPoint(const QPointF &anchorPoint)
{
    this->anchorPoint = anchorPoint;
}


void HighlightRectItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
    m_pen.setColor(Qt::red);
    update();
}

void HighlightRectItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
    m_pen.setColor(Qt::green);
    update();
}

void HighlightRectItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
    if(selectRectItem)
    {
        selectRectItem = false;
    }
    else
    {
        selectRectItem = true;
    }


}


void HighlightRectItem::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
{
    m_dragged = true;
       QGraphicsRectItem::mouseMoveEvent(event);

}

void HighlightRectItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
    if(m_dragged){
            QList<QGraphicsItem*> colItems = collidingItems();
            if(colItems.isEmpty())
                this->setPos(anchorPoint);
            else {
                QGraphicsItem* closestItem = colItems.at(0);
                qreal shortestDist = 100000;
                foreach(QGraphicsItem* item, colItems){
                    QLineF line(item->sceneBoundingRect().center(),
                                this->sceneBoundingRect().center());
                    if(line.length() < shortestDist){
                        shortestDist = line.length();
                        closestItem = item;
                    }
                }
                this->setPos(closestItem->scenePos());
            }
            m_dragged = false;
        }
        QGraphicsRectItem::mouseReleaseEvent(event);
}


void HighlightRectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    //painter->;
   painter->setPen(m_pen);
   //painter->begin(&boximg);
   painter->drawRect(rect());
   //painter->end();

}

I Just use QPainter for draw the outline .... but I'm not able re-implement for show QImage ...

Regards
Giorgio

[gfxx]

@gfxx Sorry stupid question ....

painter->drawImage(QPoint(0,0), boximg);

solve the problem .....
unfortunately I always read too little references of Qt online classes .... :(

regards
Giorgio