Initializing QVector of QImages - qt

Question

I am fairly new to Qt. It is the first framework I have worked with. I am writing a blackjack game using Qt. It seems to me that I should store the images of each card in a container class such as QVector. The container type would be of QImage. So I would have a declaration such as QVector<QImage> cards; Perhaps this is not the best way about approaching this problem so any alternative suggestion is of course welcomed. However, regardless, I would like to know if it is possible to initialize the container during the declaration. I have not been able to solve this so my solution is the following:
// Deck.h
class Deck
{
public:
Deck();
void shuffle(); // Creates new deck and shuffles it.
QImage &popCard(); // Removes first card off deck.
private:
void emptyDeck(); // Empty the deck so new cards can be added
QVector<QImage> cards;
QQueue<QImage> deck;
};
// Deck.cpp
Deck::Deck()
{
cards.push_back(QImage(":/PlayingCards/Clubs 1.png"));
cards.push_back(QImage(":/PlayingCards/Clubs 2.png"));
cards.push_back(QImage(":/PlayingCards/Clubs 3.png"));
cards.push_back(QImage(":/PlayingCards/Clubs 4.png"));
// continue process for entire deck of cards...
}
This seems to be painfully tedious especially if I consider adding a different style of playing cards later on, or if I give the user an option to change the style of the cards at run time. What would be an efficient design to this?

Answer 1

I would like to know if it is possible to initialize the container during the declaration
Yes you can since C++11:
QList<int> list{1, 2, 3, 4, 5};
Well about your question one of the way can be:
Create in resources all types of your images style calling like template, for example: "Name n.png", where n - number from 1 to 54 (cnt of cards with Jokers);
Create some QList<QImage> (I think it'll be better then QVector);
Create some QMap for searching correct template easy;
Create some enum class for template map;
Write a function that change images of your cards by selected enum.
However it is very light codding. I think there is more usefull ways and there is a lot of other more beauty ways to do this game and logic. But as part of your question here some code (can be not very right, cause write as is):
// Somewhere in global
enum class CardsTemplate: {
Clubs,
SomeTemp1,
SomeTemp2,
...
SomeTempN
}
.H file:
private:
QList<QImage> _images;
QMap<CardsTemplate, QString> _imagesMap {
{CardsTemplate::Clubs, QString("Clubs")},
{CardsTemplate::SomeTemp1, QString("SomeTemp1")},
{CardsTemplate::SomeTemp2, QString("SomeTemp2")},
...
{CardsTemplate::SomeTempN, QString("SomeTempN")}
}
public:
Deck(CardsTemplate temp);
void setNewTemplate(CardsTemplate temp);
.CPP file:
Deck::Deck(CardsTemplate temp){
for(int i = 1; i <= 54; i++)
_images << QImage(QString(":/Playing cards/%1 %2.png")
.arg(_imagesMap.value(temp)).arg(i));
}
void Deck::setNewTemplate(CardsTemplate temp) {
for(int i = 1; i <= _images.size(); i++)
_images[i] = QImage(QString(":/Playing cards/%1 %2.png")
.arg(_imagesMap.value(temp)).arg(i));
}