qt5base-lts/examples/widgets/itemviews/puzzle/mainwindow.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mainwindow.h"
#include "piecesmodel.h"
#include "puzzlewidget.h"
#include <QtWidgets>
#include <stdlib.h>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
setupMenus();
setupWidgets();
model = new PiecesModel(puzzleWidget->pieceSize(), 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(puzzleWidget->imageSize(),
puzzleWidget->imageSize(), 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);
puzzleWidget = new PuzzleWidget(400);
piecesList = new QListView;
piecesList->setDragEnabled(true);
piecesList->setViewMode(QListView::IconMode);
piecesList->setIconSize(QSize(puzzleWidget->pieceSize() - 20, puzzleWidget->pieceSize() - 20));
piecesList->setGridSize(QSize(puzzleWidget->pieceSize(), puzzleWidget->pieceSize()));
piecesList->setSpacing(10);
piecesList->setMovement(QListView::Snap);
piecesList->setAcceptDrops(true);
piecesList->setDropIndicatorShown(true);
PiecesModel *model = new PiecesModel(puzzleWidget->pieceSize(), this);
piecesList->setModel(model);
connect(puzzleWidget, SIGNAL(puzzleCompleted()),
this, SLOT(setCompleted()), Qt::QueuedConnection);
frameLayout->addWidget(piecesList);
frameLayout->addWidget(puzzleWidget);
setCentralWidget(frame);
}