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<pre> /****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
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**
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****************************************************************************/
#include <QtGui>
#include <stdlib.h>
#include "mainwindow.h"
#include "pieceslist.h"
#include "puzzlewidget.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
setupMenus();
setupWidgets();
setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
setWindowTitle(tr("Puzzle"));
}
void MainWindow::openImage(const QString &path)
{
QString fileName = path;
if (fileName.isNull())
fileName = QFileDialog::getOpenFileName(this,
tr("Open Image"), "", "Image Files (*.png *.jpg *.bmp)");
if (!fileName.isEmpty()) {
QPixmap newImage;
if (!newImage.load(fileName)) {
QMessageBox::warning(this, tr("Open Image"),
tr("The image file could not be loaded."),
QMessageBox::Cancel);
return;
}
puzzleImage = newImage;
setupPuzzle();
}
}
void MainWindow::setCompleted()
{
QMessageBox::information(this, tr("Puzzle Completed"),
tr("Congratulations! You have completed the puzzle!\n"
"Click OK to start again."),
QMessageBox::Ok);
setupPuzzle();
}
void MainWindow::setupPuzzle()
{
int size = qMin(puzzleImage.width(), puzzleImage.height());
puzzleImage = puzzleImage.copy((puzzleImage.width() - size)/2,
(puzzleImage.height() - size)/2, size, size).scaled(400,
400, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
piecesList->clear();
for (int y = 0; y < 5; ++y) {
for (int x = 0; x < 5; ++x) {
QPixmap pieceImage = puzzleImage.copy(x*80, y*80, 80, 80);
piecesList->addPiece(pieceImage, QPoint(x, y));
}
}
qsrand(QCursor::pos().x() ^ QCursor::pos().y());
for (int i = 0; i < piecesList->count(); ++i) {
if (int(2.0*qrand()/(RAND_MAX+1.0)) == 1) {
QListWidgetItem *item = piecesList->takeItem(i);
piecesList->insertItem(0, item);
}
}
puzzleWidget->clear();
}
void MainWindow::setupMenus()
{
QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
QAction *openAction = fileMenu->addAction(tr("&Open..."));
openAction->setShortcut(QKeySequence(tr("Ctrl+O")));
QAction *exitAction = fileMenu->addAction(tr("E&xit"));
exitAction->setShortcut(QKeySequence(tr("Ctrl+Q")));
QMenu *gameMenu = menuBar()->addMenu(tr("&Game"));
QAction *restartAction = gameMenu->addAction(tr("&Restart"));
connect(openAction, SIGNAL(triggered()), this, SLOT(openImage()));
connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
connect(restartAction, SIGNAL(triggered()), this, SLOT(setupPuzzle()));
}
void MainWindow::setupWidgets()
{
QFrame *frame = new QFrame;
QHBoxLayout *frameLayout = new QHBoxLayout(frame);
piecesList = new PiecesList;
puzzleWidget = new PuzzleWidget;
connect(puzzleWidget, SIGNAL(puzzleCompleted()),
this, SLOT(setCompleted()), Qt::QueuedConnection);
frameLayout->addWidget(piecesList);
frameLayout->addWidget(puzzleWidget);
setCentralWidget(frame);
}</pre>
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