How to get the mouse click coordinate in a scene?
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Hi..
I make some circle in one scene using QGraphicsEllipseItem. I want to grab a real coordinate (not the center of the circle) of this item when someone left-clicked every circle. Using the first code it can only detect the coordinate when I clicked outside of the circle but when I clicked inside of every circle, the coordinate not shown.@
void DialogApplication::mousePressEvent(QMouseEvent *event)
{
if (event->button()==Qt::LeftButton){
mouse_koordinat=event->pos();
qDebug() << "coordinate in my item: " << mouse_koordinat.x();
}
}@Using this second code there is an error message: "overloaded member function not found in 'DialogApplication' "
@void DialogApplication::mousePressEvent(QGraphicsSceneMouseEvent *event) //QMouseEvent *event) //
{
if (event->button()==Qt::LeftButton){mouse_koordinat=event->buttonDownScenePos(Qt::LeftButton); qDebug() << "coordinate in my item: " << mouse_koordinat.x(); }}
@I appreciate if there is a suggestion and help. Thank you...
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Try this:
@
#include <QGraphicsEllipseItem>
#include <QDebug>
class Ellipse: public QGraphicsEllipseItem
{
public:
Ellipse(qreal x, qreal y, qreal width, qreal height, QGraphicsItem *parent = 0) :
QGraphicsEllipseItem(x, y, width, height, parent) {}
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (event->button() & Qt::LeftButton)
{
QPointF center = rect().center();
qDebug() << "Center:" << center;
}
}
};
@
