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+/****************************************************************************
+**
+** Copyright (C) 2011 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 "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)
+{
+ nextPieceLbl = qobject_cast<QLabel*>(label);
+}
+
+QLabel *TetrixBoard::nextPieceLabel() const
+{
+ return nextPieceLbl;
+}
+
+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);
+ painter.drawImage(0, 0, image);
+}
+
+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);
+}
+
+void TetrixBoard::update()
+{
+ QRect rect = contentsRect();
+ if (image.size() != rect.size())
+ image = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);
+ image.fill(qRgba(0,0,0,0));
+ QPainter painter;
+ painter.begin(&image);
+ int boardTop = rect.bottom() - BoardHeight*squareHeight();
+ painter.translate(rect.left(), boardTop);
+ emit paintRequested(&painter);
+ QFrame::update();
+}