Qt 4.8: tetrixwindow.cpp Example File (widgets/tetrix/tetrixwindow.cpp)

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# tetrixwindow.cpp Example File

widgets/tetrix/tetrixwindow.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** 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 Digia Plc 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."
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     ** $QT_END_LICENSE$
     **
     ****************************************************************************/

     #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;
     }