/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "tetrixboard.h"+
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+
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#include <QtGui>+
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+
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Q_DECLARE_METATYPE(QPainter*)+
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+
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TetrixBoard::TetrixBoard(QWidget *parent)+
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    : QFrame(parent)+
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{+
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    timer = new QTimer(this);+
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    qMetaTypeId<QPainter*>();+
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}+
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+
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void TetrixBoard::setNextPieceLabel(QWidget *label)+
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{+
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    nextPieceLabel = qobject_cast<QLabel*>(label);+
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}+
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+
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QObject *TetrixBoard::getTimer()+
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{+
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    return timer;+
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}+
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+
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QSize TetrixBoard::minimumSizeHint() const+
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{+
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    return QSize(BoardWidth * 5 + frameWidth() * 2,+
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                 BoardHeight * 5 + frameWidth() * 2);+
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}+
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+
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void TetrixBoard::paintEvent(QPaintEvent *event)+
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{+
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    QFrame::paintEvent(event);+
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    QPainter painter(this);+
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    painter.drawImage(0, 0, image);+
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}+
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+
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void TetrixBoard::keyPressEvent(QKeyEvent *event)+
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{+
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    emit keyPressed(event->key());+
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}+
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+
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void TetrixBoard::showNextPiece(int width, int height)+
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{+
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    if (!nextPieceLabel)+
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        return;+
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+
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    QPixmap pixmap(width * squareWidth(), height * squareHeight());+
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    QPainter painter(&pixmap);+
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    painter.fillRect(pixmap.rect(), nextPieceLabel->palette().background());+
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+
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    emit paintNextPieceRequested(&painter);+
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+
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    nextPieceLabel->setPixmap(pixmap);+
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}+
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+
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void TetrixBoard::drawPauseScreen(QPainter *painter)+
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{+
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    painter->drawText(contentsRect(), Qt::AlignCenter, tr("Pause"));+
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}+
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+
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void TetrixBoard::drawSquare(QPainter *painter, int x, int y, int shape)+
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{+
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    static const QRgb colorTable[8] = {+
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        0x000000, 0xCC6666, 0x66CC66, 0x6666CC,+
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        0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00+
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    };+
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+
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    x = x*squareWidth();+
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    y = y*squareHeight();+
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+
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    QColor color = colorTable[shape];+
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    painter->fillRect(x + 1, y + 1, squareWidth() - 2, squareHeight() - 2,+
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                      color);+
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+
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    painter->setPen(color.light());+
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    painter->drawLine(x, y + squareHeight() - 1, x, y);+
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    painter->drawLine(x, y, x + squareWidth() - 1, y);+
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+
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    painter->setPen(color.dark());+
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    painter->drawLine(x + 1, y + squareHeight() - 1,+
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                      x + squareWidth() - 1, y + squareHeight() - 1);+
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    painter->drawLine(x + squareWidth() - 1, y + squareHeight() - 1,+
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                      x + squareWidth() - 1, y + 1);+
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}+
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+
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void TetrixBoard::update()+
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{+
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    QRect rect = contentsRect();+
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    if (image.size() != rect.size())+
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        image = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);+
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    image.fill(qRgba(0,0,0,0));+
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    QPainter painter;+
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    painter.begin(&image);+
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    int boardTop = rect.bottom() - BoardHeight*squareHeight();+
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    painter.translate(rect.left(), boardTop);+
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    emit paintRequested(&painter);+
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    QFrame::update();+
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}+
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