I am coding a game - I have a Board class that is composed of a table/grid of "Spaces" - both Spaces and the Board have a virtual method 'render' being passed a QPainter reference. I want to (if possible) use the painter for the main board and to pass to each Space JUST the rectangle of the space on the screen that it should paint. Is that possible?
Like if the board occupies a rectangle 0,0 -> 2000,2000 and the rectangle passed to the top left space would be 0,0->100,100 - the rectangle for the next space over would be 100,0->200,100 - but as far as it would see, its rectangle would just be 0,0->100,100 no matter what - so I could break up the work being done. Here's a simple example:
class Space{ // ...public: //... virtual void render(QPainter *painter);};class Board{ QList<QList<Space>> mLstBoard;public: // ... virtual void render(QPainter *painter);};class GamePanel : public QWidget{ Q_OBJECT Board *mBoard;public: // ...};class MainWindow : public QMainWindow{ Q_OBJECT GamePanel mPnlMain;public: //...};int main(int argc, char **argv){ QApplication a(argc, argv); MainWindow wnd; wnd.show(); return(a.exec());}