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| ** This file is part of the examples of the Qt Toolkit. |
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| |
| #include "tetrixboard.h" |
| |
| #include <QtWidgets> |
| |
| 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().window()); |
| |
| 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.lighter()); |
| painter->drawLine(x, y + squareHeight() - 1, x, y); |
| painter->drawLine(x, y, x + squareWidth() - 1, y); |
| |
| painter->setPen(color.darker()); |
| 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(); |
| } |