Qt 4.3: tetrixwindow.cpp Example File (widgets/tetrix/tetrixwindow.cpp)

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# tetrixwindow.cpp Example File
widgets/tetrix/tetrixwindow.cpp

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     #include <QtGui>

     #include "tetrixboard.h"
     #include "tetrixwindow.h"

     TetrixWindow::TetrixWindow()
     {
         board = new TetrixBoard;

         nextPieceLabel = new QLabel;
         nextPieceLabel->setFrameStyle(QFrame::Box | QFrame::Raised);
         nextPieceLabel->setAlignment(Qt::AlignCenter);
         board->setNextPieceLabel(nextPieceLabel);

         scoreLcd = new QLCDNumber(5);
         scoreLcd->setSegmentStyle(QLCDNumber::Filled);
         levelLcd = new QLCDNumber(2);
         levelLcd->setSegmentStyle(QLCDNumber::Filled);
         linesLcd = new QLCDNumber(5);
         linesLcd->setSegmentStyle(QLCDNumber::Filled);

         startButton = new QPushButton(tr("&Start"));
         startButton->setFocusPolicy(Qt::NoFocus);
         quitButton = new QPushButton(tr("&Quit"));
         quitButton->setFocusPolicy(Qt::NoFocus);
         pauseButton = new QPushButton(tr("&Pause"));
         pauseButton->setFocusPolicy(Qt::NoFocus);

         connect(startButton, SIGNAL(clicked()), board, SLOT(start()));
         connect(quitButton , SIGNAL(clicked()), qApp, SLOT(quit()));
         connect(pauseButton, SIGNAL(clicked()), board, SLOT(pause()));
         connect(board, SIGNAL(scoreChanged(int)), scoreLcd, SLOT(display(int)));
         connect(board, SIGNAL(levelChanged(int)), levelLcd, SLOT(display(int)));
         connect(board, SIGNAL(linesRemovedChanged(int)),
                 linesLcd, SLOT(display(int)));

         QGridLayout *layout = new QGridLayout;
         layout->addWidget(createLabel(tr("NEXT")), 0, 0);
         layout->addWidget(nextPieceLabel, 1, 0);
         layout->addWidget(createLabel(tr("LEVEL")), 2, 0);
         layout->addWidget(levelLcd, 3, 0);
         layout->addWidget(startButton, 4, 0);
         layout->addWidget(board, 0, 1, 6, 1);
         layout->addWidget(createLabel(tr("SCORE")), 0, 2);
         layout->addWidget(scoreLcd, 1, 2);
         layout->addWidget(createLabel(tr("LINES REMOVED")), 2, 2);
         layout->addWidget(linesLcd, 3, 2);
         layout->addWidget(quitButton, 4, 2);
         layout->addWidget(pauseButton, 5, 2);
         setLayout(layout);

         setWindowTitle(tr("Tetrix"));
         resize(550, 370);
     }

     QLabel *TetrixWindow::createLabel(const QString &text)
     {
         QLabel *lbl = new QLabel(text);
         lbl->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);
         return lbl;
     }