Qt 4.3: tetrixboard.cpp Example File (script/tetrix/tetrixboard.cpp)

|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# tetrixboard.cpp Example File
script/tetrix/tetrixboard.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 as published by the Free Software Foundation
     ** and appearing in the file LICENSE.GPL included in the packaging of
     ** this file.  Please review the following information to ensure GNU
     ** General Public Licensing requirements will be met:
     ** http://trolltech.com/products/qt/licenses/licensing/opensource/
     **
     ** If you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
     ** or contact the sales department at sales@trolltech.com.
     **
     ** In addition, as a special exception, Trolltech gives you certain
     ** additional rights. These rights are described in the Trolltech GPL
     ** Exception version 1.0, which can be found at
     ** http://www.trolltech.com/products/qt/gplexception/ and in the file
     ** GPL_EXCEPTION.txt in this package.
     **
     ** In addition, as a special exception, Trolltech, as the sole copyright
     ** holder for Qt Designer, grants users of the Qt/Eclipse Integration
     ** plug-in the right for the Qt/Eclipse Integration to link to
     ** functionality provided by Qt Designer and its related libraries.
     **
     ** Trolltech reserves all rights not expressly granted herein.
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #include "tetrixboard.h"

     #include <QtGui>

     Q_DECLARE_METATYPE(QPainter*)

     TetrixBoard::TetrixBoard(QWidget *parent)
         : QFrame(parent)
     {
         timer = new QTimer(this);
         qMetaTypeId<QPainter*>();
     }

     void TetrixBoard::setNextPieceLabel(QWidget *label)
     {
         nextPieceLabel = qobject_cast<QLabel*>(label);
     }

     QObject *TetrixBoard::getTimer()
     {
         return timer;
     }

     QSize TetrixBoard::minimumSizeHint() const
     {
         return QSize(BoardWidth * 5 + frameWidth() * 2,
                      BoardHeight * 5 + frameWidth() * 2);
     }

     void TetrixBoard::paintEvent(QPaintEvent *event)
     {
         QFrame::paintEvent(event);

         QPainter painter(this);
         QRect rect = contentsRect();
         int boardTop = rect.bottom() - BoardHeight*squareHeight();
         painter.translate(rect.left(), boardTop);

         emit paintRequested(&painter);
     }

     void TetrixBoard::keyPressEvent(QKeyEvent *event)
     {
         emit keyPressed(event->key());
     }

     void TetrixBoard::showNextPiece(int width, int height)
     {
         if (!nextPieceLabel)
             return;

         QPixmap pixmap(width * squareWidth(), height * squareHeight());
         QPainter painter(&pixmap);
         painter.fillRect(pixmap.rect(), nextPieceLabel->palette().background());

         emit paintNextPieceRequested(&painter);

         nextPieceLabel->setPixmap(pixmap);
     }

     void TetrixBoard::drawPauseScreen(QPainter *painter)
     {
         painter->drawText(contentsRect(), Qt::AlignCenter, tr("Pause"));
     }

     void TetrixBoard::drawSquare(QPainter *painter, int x, int y, int shape)
     {
         static const QRgb colorTable[8] = {
             0x000000, 0xCC6666, 0x66CC66, 0x6666CC,
             0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00
         };

         x = x*squareWidth();
         y = y*squareHeight();

         QColor color = colorTable[shape];
         painter->fillRect(x + 1, y + 1, squareWidth() - 2, squareHeight() - 2,
                           color);

         painter->setPen(color.light());
         painter->drawLine(x, y + squareHeight() - 1, x, y);
         painter->drawLine(x, y, x + squareWidth() - 1, y);

         painter->setPen(color.dark());
         painter->drawLine(x + 1, y + squareHeight() - 1,
                           x + squareWidth() - 1, y + squareHeight() - 1);
         painter->drawLine(x + squareWidth() - 1, y + squareHeight() - 1,
                           x + squareWidth() - 1, y + 1);
     }