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# minehunt.h Example File

demos/declarative/minehunt/minehunt.h

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and The Qt Company. For licensing terms
     ** and conditions see http://www.qt.io/terms-conditions. For further
     ** information use the contact form at http://www.qt.io/contact-us.
     **
     ** 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 or version 3 as published by the Free
     ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
     ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
     ** following information to ensure the GNU Lesser General Public License
     ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
     ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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     ** rights. These rights are described in The Qt Company LGPL Exception
     ** version 1.1, 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
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     ** $QT_END_LICENSE$
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     ****************************************************************************/

     #include <qdeclarative.h>

     class TileData : public QObject
     {
         Q_OBJECT
     public:
         TileData() : _hasFlag(false), _hasMine(false), _hint(-1), _flipped(false) {}

         Q_PROPERTY(bool hasFlag READ hasFlag WRITE setHasFlag NOTIFY hasFlagChanged)
         bool hasFlag() const { return _hasFlag; }

         Q_PROPERTY(bool hasMine READ hasMine NOTIFY hasMineChanged)
         bool hasMine() const { return _hasMine; }

         Q_PROPERTY(int hint READ hint NOTIFY hintChanged)
         int hint() const { return _hint; }

         Q_PROPERTY(bool flipped READ flipped NOTIFY flippedChanged())
         bool flipped() const { return _flipped; }

         void setHasFlag(bool flag) {if(flag==_hasFlag) return; _hasFlag = flag; emit hasFlagChanged();}
         void setHasMine(bool mine) {if(mine==_hasMine) return; _hasMine = mine; emit hasMineChanged();}
         void setHint(int hint) { if(hint == _hint) return; _hint = hint; emit hintChanged(); }
         void flip() { if (_flipped) return; _flipped = true; emit flippedChanged(); }
         void unflip() { if(!_flipped) return; _flipped = false; emit flippedChanged(); }

     signals:
         void flippedChanged();
         void hasFlagChanged();
         void hintChanged();
         void hasMineChanged();

     private:
         bool _hasFlag;
         bool _hasMine;
         int _hint;
         bool _flipped;
     };

     class MinehuntGame : public QObject
     {
         Q_OBJECT
     public:
         MinehuntGame();

         Q_PROPERTY(QDeclarativeListProperty<TileData> tiles READ tiles CONSTANT)
         QDeclarativeListProperty<TileData> tiles();

         Q_PROPERTY(bool isPlaying READ isPlaying NOTIFY isPlayingChanged)
         bool isPlaying() {return playing;}

         Q_PROPERTY(bool hasWon READ hasWon NOTIFY hasWonChanged)
         bool hasWon() {return won;}

         Q_PROPERTY(int numMines READ numMines NOTIFY numMinesChanged)
         int numMines() const{return nMines;}

         Q_PROPERTY(int numFlags READ numFlags NOTIFY numFlagsChanged)
         int numFlags() const{return nFlags;}

     public slots:
         Q_INVOKABLE bool flip(int row, int col);
         Q_INVOKABLE bool flag(int row, int col);
         void setBoard();
         void reset();

     signals:
         void isPlayingChanged();
         void hasWonChanged();
         void numMinesChanged();
         void numFlagsChanged();

     private:
         bool onBoard( int r, int c ) const { return r >= 0 && r < numRows && c >= 0 && c < numCols; }
         TileData *tile( int row, int col ) { return onBoard(row, col) ? _tiles[col+numRows*row] : 0; }
         int getHint(int row, int col);
         void setPlaying(bool b){if(b==playing) return; playing=b; emit isPlayingChanged();}

         QList<TileData *> _tiles;
         int numCols;
         int numRows;
         bool playing;
         bool won;
         int remaining;
         int nMines;
         int nFlags;
     };