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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 #include <stdlib.h>

    44 

    45 #include "mainwindow.h"

    46 #include "piecesmodel.h"

    47 #include "puzzlewidget.h"

    48 

    49 MainWindow::MainWindow(QWidget *parent)

    50     : QMainWindow(parent)

    51 {

    52     setupMenus();

    53     setupWidgets();

    54     model = new PiecesModel(this);

    55     piecesList->setModel(model);

    56 

    57     setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));

    58     setWindowTitle(tr("Puzzle"));

    59 }

    60 

    61 void MainWindow::openImage(const QString &path)

    62 {

    63     QString fileName = path;

    64 

    65     if (fileName.isNull())

    66         fileName = QFileDialog::getOpenFileName(this,

    67             tr("Open Image"), "", tr("Image Files (*.png *.jpg *.bmp)"));

    68 

    69     if (!fileName.isEmpty()) {

    70         QPixmap newImage;

    71         if (!newImage.load(fileName)) {

    72             QMessageBox::warning(this, tr("Open Image"),

    73                                  tr("The image file could not be loaded."),

    74                                  QMessageBox::Cancel);

    75             return;

    76         }

    77         puzzleImage = newImage;

    78         setupPuzzle();

    79     }

    80 }

    81 

    82 void MainWindow::setCompleted()

    83 {

    84     QMessageBox::information(this, tr("Puzzle Completed"),

    85         tr("Congratulations! You have completed the puzzle!\n"

    86            "Click OK to start again."),

    87         QMessageBox::Ok);

    88 

    89     setupPuzzle();

    90 }

    91 

    92 void MainWindow::setupPuzzle()

    93 {

    94     int size = qMin(puzzleImage.width(), puzzleImage.height());

    95     puzzleImage = puzzleImage.copy((puzzleImage.width() - size)/2,

    96         (puzzleImage.height() - size)/2, size, size).scaled(400,

    97             400, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);

    98 

    99     qsrand(QCursor::pos().x() ^ QCursor::pos().y());

   100 

   101     model->addPieces(puzzleImage);

   102     puzzleWidget->clear();

   103 }

   104 

   105 void MainWindow::setupMenus()

   106 {

   107     QMenu *fileMenu = menuBar()->addMenu(tr("&File"));

   108 

   109     QAction *openAction = fileMenu->addAction(tr("&Open..."));

   110     openAction->setShortcuts(QKeySequence::Open);

   111 

   112     QAction *exitAction = fileMenu->addAction(tr("E&xit"));

   113     exitAction->setShortcuts(QKeySequence::Quit);

   114 

   115     QMenu *gameMenu = menuBar()->addMenu(tr("&Game"));

   116 

   117     QAction *restartAction = gameMenu->addAction(tr("&Restart"));

   118 

   119     connect(openAction, SIGNAL(triggered()), this, SLOT(openImage()));

   120     connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

   121     connect(restartAction, SIGNAL(triggered()), this, SLOT(setupPuzzle()));

   122 }

   123 

   124 void MainWindow::setupWidgets()

   125 {

   126     QFrame *frame = new QFrame;

   127     QHBoxLayout *frameLayout = new QHBoxLayout(frame);

   128 

   129     piecesList = new QListView;

   130     piecesList->setDragEnabled(true);

   131     piecesList->setViewMode(QListView::IconMode);

   132     piecesList->setIconSize(QSize(60, 60));

   133     piecesList->setGridSize(QSize(80, 80));

   134     piecesList->setSpacing(10);

   135     piecesList->setMovement(QListView::Snap);

   136     piecesList->setAcceptDrops(true);

   137     piecesList->setDropIndicatorShown(true);

   138 

   139     PiecesModel *model = new PiecesModel(this);

   140     piecesList->setModel(model);

   141 

   142     puzzleWidget = new PuzzleWidget;

   143 

   144     connect(puzzleWidget, SIGNAL(puzzleCompleted()),

   145             this, SLOT(setCompleted()), Qt::QueuedConnection);

   146 

   147     frameLayout->addWidget(piecesList);

   148     frameLayout->addWidget(puzzleWidget);

   149     setCentralWidget(frame);

   150 }