<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Qt 4.6: mainwindow.cpp Example File (itemviews/puzzle/mainwindow.cpp)</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://qt.nokia.com/"><img src="images/qt-logo.png" align="left" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">mainwindow.cpp Example File<br /><span class="small-subtitle">itemviews/puzzle/mainwindow.cpp</span> </h1> <pre><span class="comment"> /**************************************************************************** ** ** 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 examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** 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. ** ** 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 have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/</span> #include <QtGui> #include <stdlib.h> #include "mainwindow.h" #include "piecesmodel.h" #include "puzzlewidget.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { setupMenus(); setupWidgets(); model = new PiecesModel(this); piecesList->setModel(model); 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"), "", tr("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); qsrand(QCursor::pos().x() ^ QCursor::pos().y()); model->addPieces(puzzleImage); puzzleWidget->clear(); } void MainWindow::setupMenus() { QMenu *fileMenu = menuBar()->addMenu(tr("&File")); QAction *openAction = fileMenu->addAction(tr("&Open...")); openAction->setShortcuts(QKeySequence::Open); QAction *exitAction = fileMenu->addAction(tr("E&xit")); exitAction->setShortcuts(QKeySequence::Quit); 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 QListView; piecesList->setDragEnabled(true); piecesList->setViewMode(QListView::IconMode); piecesList->setIconSize(QSize(60, 60)); piecesList->setGridSize(QSize(80, 80)); piecesList->setSpacing(10); piecesList->setMovement(QListView::Snap); piecesList->setAcceptDrops(true); piecesList->setDropIndicatorShown(true); PiecesModel *model = new PiecesModel(this); piecesList->setModel(model); puzzleWidget = new PuzzleWidget; connect(puzzleWidget, SIGNAL(puzzleCompleted()), this, SLOT(setCompleted()), Qt::QueuedConnection); frameLayout->addWidget(piecesList); frameLayout->addWidget(puzzleWidget); setCentralWidget(frame); }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="40%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td> <td width="20%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="40%" align="right"><div align="right">Qt 4.6.3</div></td> </tr></table></div></address></body> </html>