Hi, I'm new to Qt (and GUI in general) and I'm trying to make a board game with 19x19 squares. They way I'm trying to do this is with 19x19 = 361 QLabel widgets, each with an empty square picture. Then when I want to place a stone at a square, I emit a signal to a slot that changes the PixMap of the QLabel at that square:

Qt Code: 
  1. void MainWidget::placeStone(int y,int x, char colour){
  2.  
  3.     if (colour == 'D'){
  4.         board[y][x]->setPixmap(QPixmap("black.png"));
  5.     } else {
  6.         board[y][x]->setPixmap(QPixmap("white.png"));
  7.     }
  8.     return;
  9. }
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My Class:

Qt Code: 
  1. class MainWidget : public QWidget
  2. {
  3.     Q_OBJECT
  4. public:
  5.     MainWidget(QWidget *parent = 0);
  6.  
  7. public slots:
  8.     void placeStone(int y,int x, char colour);
  9.     void moveNotMade(){}
  10.     void invalidPort();
  11.  
  12.  
  13.  
  14. private:
  15.     QLabel* board [19][19];
  16. };
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The constructor:

Qt Code: 
  1. MainWidget::MainWidget(QWidget *parent) : QWidget(parent)
  2. {
  3.      QPushButton *quit = new QPushButton(tr("Quit"));
  4.      connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
  5.      myProg* program1 = new myProg();
  6.  
  7.     /// PORT INPUT
  8.     QLabel *portInputLabel = new QLabel();
  9.     portInputLabel->setText("Port (ex: /dev/ttyS0):");
  10.     portInputLabel->setAlignment(Qt::AlignRight);
  11.     QLineEdit* portInput = new QLineEdit();
  12.     connect(portInput,SIGNAL(textChanged(QString)),program1,SLOT(getPort(QString)));
  13.  
  14.     /// COLOUR INPUT
  15.     QLabel *colourInputLabel = new QLabel();
  16.     colourInputLabel->setText("Software AI Colour (dark or light):");
  17.     colourInputLabel->setAlignment(Qt::AlignRight);
  18.     QLineEdit* colourInput = new QLineEdit();
  19.     connect(colourInput,SIGNAL(textChanged(QString)),program1,SLOT(getColour(QString)));
  20.  
  21.     QGridLayout *grid = new QGridLayout;
  22.     grid->addWidget(portInputLabel,1,1);
  23.     grid->addWidget(portInput,1,2);
  24.     grid->addWidget(colourInputLabel,2,1);
  25.     grid->addWidget(colourInput,2,2);
  26.  
  27.     setUpdatesEnabled(true);
  28.  
  29.     QPushButton *startButton = new QPushButton(tr("Start"));
  30.     connect(startButton, SIGNAL(clicked()),program1,SLOT(startProgram()));
  31.  
  32.  
  33.     QGridLayout *grid1 = new QGridLayout;
  34.     for (int row = 0; row < 19; ++row) {
  35.         for (int column = 0; column < 19; ++column) {
  36.             board[row][column] = new QLabel();
  37.             board[row][column]->setPixmap(QPixmap("empty.png"));
  38.             board[row][column]->adjustSize();
  39.              grid1->addWidget(board[row][column], row, column);
  40.         }
  41.     }
  42.     grid1->setHorizontalSpacing(0);
  43.     grid1->setVerticalSpacing(0);
  44.  
  45.     connect(program1,SIGNAL(placeStone(int,int,char)),this,SLOT(placeStone(int,int,char)),Qt::DirectConnection);
  46.     connect(program1,SIGNAL(refreshScreen()),this,SLOT(update()),Qt::DirectConnection);
  47.  
  48.     QVBoxLayout *layout = new QVBoxLayout;
  49.     layout->addLayout(grid);
  50.     layout->addWidget(quit);
  51.     layout->addWidget(startButton);
  52.     layout->addLayout(grid1);
  53.     setLayout(layout);
  54. }
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My Issue is that the placeStone slot only seems to take place AFTER the function that emits the signal returns. I've tried changing the connection type to Qt:irectConnection, but that did not change anything. I've also tried calling the update() function to force it to update the screen, but that didn't help

Thanks in advance!