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    41 

    42 #include "tetrixboard.h"

    43 

    44 #include <QtGui>

    45 

    46 Q_DECLARE_METATYPE(QPainter*)

    47 

    48 TetrixBoard::TetrixBoard(QWidget *parent)

    49     : QFrame(parent)

    50 {

    51     timer = new QTimer(this);

    52     qMetaTypeId<QPainter*>();

    53 }

    54 

    55 void TetrixBoard::setNextPieceLabel(QWidget *label)

    56 {

    57     nextPieceLabel = qobject_cast<QLabel*>(label);

    58 }

    59 

    60 QObject *TetrixBoard::getTimer()

    61 {

    62     return timer;

    63 }

    64 

    65 QSize TetrixBoard::minimumSizeHint() const

    66 {

    67     return QSize(BoardWidth * 5 + frameWidth() * 2,

    68                  BoardHeight * 5 + frameWidth() * 2);

    69 }

    70 

    71 void TetrixBoard::paintEvent(QPaintEvent *event)

    72 {

    73     QFrame::paintEvent(event);

    74     QPainter painter(this);

    75     painter.drawImage(0, 0, image);

    76 }

    77 

    78 void TetrixBoard::keyPressEvent(QKeyEvent *event)

    79 {

    80     emit keyPressed(event->key());

    81 }

    82 

    83 void TetrixBoard::showNextPiece(int width, int height)

    84 {

    85     if (!nextPieceLabel)

    86         return;

    87 

    88     QPixmap pixmap(width * squareWidth(), height * squareHeight());

    89     QPainter painter(&pixmap);

    90     painter.fillRect(pixmap.rect(), nextPieceLabel->palette().background());

    91 

    92     emit paintNextPieceRequested(&painter);

    93 

    94     nextPieceLabel->setPixmap(pixmap);

    95 }

    96 

    97 void TetrixBoard::drawPauseScreen(QPainter *painter)

    98 {

    99     painter->drawText(contentsRect(), Qt::AlignCenter, tr("Pause"));

   100 }

   101 

   102 void TetrixBoard::drawSquare(QPainter *painter, int x, int y, int shape)

   103 {

   104     static const QRgb colorTable[8] = {

   105         0x000000, 0xCC6666, 0x66CC66, 0x6666CC,

   106         0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00

   107     };

   108 

   109     x = x*squareWidth();

   110     y = y*squareHeight();

   111 

   112     QColor color = colorTable[shape];

   113     painter->fillRect(x + 1, y + 1, squareWidth() - 2, squareHeight() - 2,

   114                       color);

   115 

   116     painter->setPen(color.light());

   117     painter->drawLine(x, y + squareHeight() - 1, x, y);

   118     painter->drawLine(x, y, x + squareWidth() - 1, y);

   119 

   120     painter->setPen(color.dark());

   121     painter->drawLine(x + 1, y + squareHeight() - 1,

   122                       x + squareWidth() - 1, y + squareHeight() - 1);

   123     painter->drawLine(x + squareWidth() - 1, y + squareHeight() - 1,

   124                       x + squareWidth() - 1, y + 1);

   125 }

   126 

   127 void TetrixBoard::update()

   128 {

   129     QRect rect = contentsRect();

   130     if (image.size() != rect.size())

   131         image = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);

   132     image.fill(qRgba(0,0,0,0));

   133     QPainter painter;

   134     painter.begin(&image);

   135     int boardTop = rect.bottom() - BoardHeight*squareHeight();

   136     painter.translate(rect.left(), boardTop);

   137     emit paintRequested(&painter);

   138     QFrame::update();

   139 }