diff -r b72c6db6890b -r 5dc02b23752f demos/declarative/minehunt/minehunt.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/declarative/minehunt/minehunt.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,334 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <stdlib.h>
+#include <qdeclarativeextensionplugin.h>
+#include <qdeclarativecontext.h>
+#include <qdeclarativeengine.h>
+#include <qdeclarative.h>
+
+#include <QTime>
+#include <QTimer>
+
+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;
+};
+
+void tilesPropAppend(QDeclarativeListProperty<TileData>* prop, TileData* value)
+{
+    Q_UNUSED(prop);
+    Q_UNUSED(value);
+    return; //Append not supported
+}
+
+int tilesPropCount(QDeclarativeListProperty<TileData>* prop)
+{
+    return static_cast<QList<TileData*>*>(prop->data)->count();
+}
+
+TileData* tilesPropAt(QDeclarativeListProperty<TileData>* prop, int index)
+{
+    return static_cast<QList<TileData*>*>(prop->data)->at(index);
+}
+
+QDeclarativeListProperty<TileData> MinehuntGame::tiles(){
+    return QDeclarativeListProperty<TileData>(this, &_tiles, &tilesPropAppend,
+            &tilesPropCount, &tilesPropAt, 0);
+}
+
+MinehuntGame::MinehuntGame()
+: numCols(9), numRows(9), playing(true), won(false)
+{
+    setObjectName("mainObject");
+    srand(QTime(0,0,0).secsTo(QTime::currentTime()));
+
+    //initialize array
+    for(int ii = 0; ii < numRows * numCols; ++ii) {
+        _tiles << new TileData;
+    }
+    reset();
+
+}
+
+void MinehuntGame::setBoard()
+{
+    foreach(TileData* t, _tiles){
+        t->setHasMine(false);
+        t->setHint(-1);
+    }
+    //place mines
+    int mines = nMines;
+    remaining = numRows*numCols-mines;
+    while ( mines ) {
+        int col = int((double(rand()) / double(RAND_MAX)) * numCols);
+        int row = int((double(rand()) / double(RAND_MAX)) * numRows);
+
+        TileData* t = tile( row, col );
+
+        if (t && !t->hasMine()) {
+            t->setHasMine( true );
+            mines--;
+        }
+    }
+
+    //set hints
+    for (int r = 0; r < numRows; r++)
+        for (int c = 0; c < numCols; c++) {
+            TileData* t = tile(r, c);
+            if (t && !t->hasMine()) {
+                int hint = getHint(r,c);
+                t->setHint(hint);
+            }
+        }
+
+    setPlaying(true);
+}
+
+void MinehuntGame::reset()
+{
+    foreach(TileData* t, _tiles){
+        t->unflip();
+        t->setHasFlag(false);
+    }
+    nMines = 12;
+    nFlags = 0;
+    emit numMinesChanged();
+    emit numFlagsChanged();
+    setPlaying(false);
+    QTimer::singleShot(600,this, SLOT(setBoard()));
+}
+
+int MinehuntGame::getHint(int row, int col)
+{
+    int hint = 0;
+    for (int c = col-1; c <= col+1; c++)
+        for (int r = row-1; r <= row+1; r++) {
+            TileData* t = tile(r, c);
+            if (t && t->hasMine())
+                hint++;
+        }
+    return hint;
+}
+
+bool MinehuntGame::flip(int row, int col)
+{
+    if(!playing)
+        return false;
+
+    TileData *t = tile(row, col);
+    if (!t || t->hasFlag())
+        return false;
+
+    if(t->flipped()){
+        int flags = 0;
+        for (int c = col-1; c <= col+1; c++)
+            for (int r = row-1; r <= row+1; r++) {
+                TileData *nearT = tile(r, c);
+                if(!nearT || nearT == t)
+                    continue;
+                if(nearT->hasFlag())
+                    flags++;
+            }
+        if(!t->hint() || t->hint() != flags)
+            return false;
+        for (int c = col-1; c <= col+1; c++)
+            for (int r = row-1; r <= row+1; r++) {
+                TileData *nearT = tile(r, c);
+                if (nearT && !nearT->flipped() && !nearT->hasFlag()) {
+                    flip( r, c );
+                }
+            }
+        return true;
+    }
+
+    t->flip();
+
+    if (t->hint() == 0) {
+        for (int c = col-1; c <= col+1; c++)
+            for (int r = row-1; r <= row+1; r++) {
+                TileData* t = tile(r, c);
+                if (t && !t->flipped()) {
+                    flip( r, c );
+                }
+            }
+    }
+
+    if(t->hasMine()){
+        for (int r = 0; r < numRows; r++)//Flip all other mines
+            for (int c = 0; c < numCols; c++) {
+                TileData* t = tile(r, c);
+                if (t && t->hasMine()) {
+                    flip(r, c);
+                }
+            }
+        won = false;
+        hasWonChanged();
+        setPlaying(false);
+    }
+
+    remaining--;
+    if(!remaining){
+        won = true;
+        hasWonChanged();
+        setPlaying(false);
+    }
+    return true;
+}
+
+bool MinehuntGame::flag(int row, int col)
+{
+    TileData *t = tile(row, col);
+    if(!t)
+        return false;
+
+    t->setHasFlag(!t->hasFlag());
+    nFlags += (t->hasFlag()?1:-1);
+    emit numFlagsChanged();
+    return true;
+}
+
+class MinehuntExtensionPlugin : public QDeclarativeExtensionPlugin
+{
+    Q_OBJECT
+
+    public:
+    void registerTypes(const char *uri) {
+        Q_UNUSED(uri);
+        qmlRegisterType<TileData>();
+    }
+
+    void initializeEngine(QDeclarativeEngine *engine, const char *uri) {
+        Q_UNUSED(uri);
+
+        srand(QTime(0,0,0).secsTo(QTime::currentTime()));
+
+        MinehuntGame* game = new MinehuntGame();
+
+        engine->rootContext()->setContextObject(game);
+    }
+};
+
+#include "minehunt.moc"
+
+Q_EXPORT_PLUGIN(MinehuntExtensionPlugin);
+