Delete a clicked object from the scene?

Marcius

[quote author="qxoz" date="1395929064"]
for identifying clicked object you can use "QSignalMapper":http://qt-project.org/doc/qt-5.0/qtcore/qsignalmapper.html or "QObject::sender()":http://qt-project.org/doc/qt-4.8/qobject.html#sender [/quote]

Ah, this is the missing puzzle piece. Exactly what I needed, thank you!

Marcius

I want to come back to this, because I can't seem to get things together.

It seems to me that if I could get to return the object clicked in my scene (that being a card), I could finally move on. Documentation just confuse me further, even my own code has the same effect at the moment..

SGaist

Hi,

Pseudo code:
@
MyClass::whereItNeedsToBeFunction(){
// Create the card
connect(card, SIGNAL(clicked()), this, SLOT(cardClicked());
}

void MyClass::cardClicked()
{
CardClass *card = qobject_cast<CardClass *>(sender());
if (card) {
// do what you want with the card
}
}
@

Hope it helps

Marcius

Thank you again, SGaist! I'll work on this as soon as I get a chance. Before I start though, I'm using visual studio. Would "connect" be recognized?

EDIT

Or any other piece of this that's only a part of Qt environment?

SGaist

Since you are already compiling a Qt project with VS, there should not be any problem

Marcius

Hm, when I type 'connect' it's not in the pop-up list.

SGaist

Your Card class is not a QObject ?

Marcius

Only QGraphicsPixmapItem. I thought though that it derives from QObject

SGaist

No they are not, for their original use case, deriving from QObject would not make sense. If you need signals and slots in a QGraphicsItem there's also QGraphicsObject to have a look at

Marcius

Oh boy, wish I had known that before hand. Back to rewriting chunks of code

SGaist

The documentation is your friend ;)

Marcius

Hint taken :) At that point I didn't know what sort of functionality I was going to need, plus I was only starting out with Qt. Oh well, lesson learned :)