- Qt 5.5
- Qt Widgets
- Tetrix Example
- tetrixwindow.cpp Example File
- Qt 5.5.1 Reference Documentation

# tetrixwindow.cpp Example File

widgets/tetrix/tetrixwindow.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
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    #include <QtWidgets>

    #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;
    }