[solved] vectors and QGraphicsPixmapItem
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Hi everyone,
I'm facing yet another issue which I'm struggling with.
I have a vector, vector<Card> player, where Card is a class with its suit, rank and inherits QGraphicsPixmapItem. Let's say the vector has 5 Card items with their suits, ranks and pixmaps set.
@
for (vector<Card>::iterator iter = player->begin();
iter != player->end(); ++iter)
{
qDebug() << iter->GetSuit() << iter->GetRank();
scene->addItem(iter);
}
@Here, I successfully get suits and ranks, but cannot add object to the scene. I get en error: "no suitable conversion function from "std::_Vector_iterator<std::_Vector_val<std::_Simple_types<Card>>>" to "QGraphicsItem *" exists"
If I do something like this:
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Card * card = new Card;
card->SetCard(1,1);
card->setPixmap(QPixmap("/card set/h7.gif"));
scene->addItem(card);
@
it works fine.I don't understand what I do wrong.
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Hi,
vector<Card> implies that you can copy Card which is not the case since it's a QGraphicsPixmapItem. You can however use vector<Card *> or QVector<Card *>
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Got it.
So just to double check with you (because I'm about to rewrite quite a few bits of my code), when I use something like Card card, vector<card>, card = card2 etc - all of this would create a copy, which in turn generates that error that I'm getting?
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That's it, you're right
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Learning curve ;-)
Time to clean and refactor, and it's something you'll do several times in your carrier :)
If this answers your question, please update the thread title to solved so other forum users may know a solution has been found :)
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I know, and I do enjoy learning these things. I just wish I would spend a little less time coping with all sorts of errors and more time on actual coding :) But I guess that's a part of it too.
Well, just finished rewriting the code. All I have now is a bucketload of pointers and references and got rid of those errors I previously had. All thanks to you!
