Qt Reference Documentation

tetrixwindow.cpp Example File

widgets/tetrix/tetrixwindow.cpp
 /****************************************************************************
 **
 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** 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:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
 **     the names of its contributors may be used to endorse or promote
 **     products derived from this software without specific prior written
 **     permission.
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #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;
 }