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Diffstat (limited to 'examples/designer/taskmenuextension/tictactoe.cpp')
| -rw-r--r-- | examples/designer/taskmenuextension/tictactoe.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/examples/designer/taskmenuextension/tictactoe.cpp b/examples/designer/taskmenuextension/tictactoe.cpp new file mode 100644 index 0000000000..ba766ccd36 --- /dev/null +++ b/examples/designer/taskmenuextension/tictactoe.cpp @@ -0,0 +1,176 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "tictactoe.h" + +TicTacToe::TicTacToe(QWidget *parent) + : QWidget(parent) +{ +} + +QSize TicTacToe::minimumSizeHint() const +{ + return QSize(200, 200); +} + +QSize TicTacToe::sizeHint() const +{ + return QSize(200, 200); +} + +void TicTacToe::setState(const QString &newState) +{ + turnNumber = 0; + myState = "---------"; + int position = 0; + while (position < 9 && position < newState.length()) { + QChar mark = newState.at(position); + if (mark == Cross || mark == Nought) { + ++turnNumber; + myState.replace(position, 1, mark); + } + position++; + } + update(); +} + +QString TicTacToe::state() const +{ + return myState; +} + +void TicTacToe::clearBoard() +{ + myState = "---------"; + turnNumber = 0; + update(); +} + +void TicTacToe::mousePressEvent(QMouseEvent *event) +{ + if (turnNumber == 9) { + clearBoard(); + update(); + } else { + for (int position = 0; position < 9; ++position) { + QRect cell = cellRect(position / 3, position % 3); + if (cell.contains(event->pos())) { + if (myState.at(position) == Empty) { + if (turnNumber % 2 == 0) + myState.replace(position, 1, Cross); + else + myState.replace(position, 1, Nought); + ++turnNumber; + update(); + } + } + } + } +} + +void TicTacToe::paintEvent(QPaintEvent * /* event */) +{ + QPainter painter(this); + painter.setRenderHint(QPainter::Antialiasing); + + painter.setPen(QPen(Qt::darkGreen, 1)); + painter.drawLine(cellWidth(), 0, cellWidth(), height()); + painter.drawLine(2 * cellWidth(), 0, 2 * cellWidth(), height()); + painter.drawLine(0, cellHeight(), width(), cellHeight()); + painter.drawLine(0, 2 * cellHeight(), width(), 2 * cellHeight()); + + painter.setPen(QPen(Qt::darkBlue, 2)); + + for (int position = 0; position < 9; ++position) { + QRect cell = cellRect(position / 3, position % 3); + + if (myState.at(position) == Cross) { + painter.drawLine(cell.topLeft(), cell.bottomRight()); + painter.drawLine(cell.topRight(), cell.bottomLeft()); + } else if (myState.at(position) == Nought) { + painter.drawEllipse(cell); + } + } + + painter.setPen(QPen(Qt::yellow, 3)); + + for (int position = 0; position < 9; position = position + 3) { + if (myState.at(position) != Empty + && myState.at(position + 1) == myState.at(position) + && myState.at(position + 2) == myState.at(position)) { + int y = cellRect((position / 3), 0).center().y(); + painter.drawLine(0, y, width(), y); + turnNumber = 9; + } + } + + for (int position = 0; position < 3; ++position) { + if (myState.at(position) != Empty + && myState.at(position + 3) == myState.at(position) + && myState.at(position + 6) == myState.at(position)) { + int x = cellRect(0, position).center().x(); + painter.drawLine(x, 0, x, height()); + turnNumber = 9; + } + } + if (myState.at(0) != Empty && myState.at(4) == myState.at(0) + && myState.at(8) == myState.at(0)) { + painter.drawLine(0, 0, width(), height()); + turnNumber = 9; + } + if (myState.at(2) != Empty && myState.at(4) == myState.at(2) + && myState.at(6) == myState.at(2)) { + painter.drawLine(0, height(), width(), 0); + turnNumber = 9; + } +} + +QRect TicTacToe::cellRect(int row, int column) const +{ + const int HMargin = width() / 30; + const int VMargin = height() / 30; + return QRect(column * cellWidth() + HMargin, + row * cellHeight() + VMargin, + cellWidth() - 2 * HMargin, + cellHeight() - 2 * VMargin); +} |