source: trunk/examples/draganddrop/puzzle/mainwindow.cpp@ 651

Last change on this file since 651 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

File size: 4.9 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
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
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43#include <stdlib.h>
44
45#include "mainwindow.h"
46#include "pieceslist.h"
47#include "puzzlewidget.h"
48
49MainWindow::MainWindow(QWidget *parent)
50 : QMainWindow(parent)
51{
52 setupMenus();
53 setupWidgets();
54
55 setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
56 setWindowTitle(tr("Puzzle"));
57}
58
59void MainWindow::openImage(const QString &path)
60{
61 QString fileName = path;
62
63 if (fileName.isNull())
64 fileName = QFileDialog::getOpenFileName(this,
65 tr("Open Image"), "", "Image Files (*.png *.jpg *.bmp)");
66
67 if (!fileName.isEmpty()) {
68 QPixmap newImage;
69 if (!newImage.load(fileName)) {
70 QMessageBox::warning(this, tr("Open Image"),
71 tr("The image file could not be loaded."),
72 QMessageBox::Cancel);
73 return;
74 }
75 puzzleImage = newImage;
76 setupPuzzle();
77 }
78}
79
80void MainWindow::setCompleted()
81{
82 QMessageBox::information(this, tr("Puzzle Completed"),
83 tr("Congratulations! You have completed the puzzle!\n"
84 "Click OK to start again."),
85 QMessageBox::Ok);
86
87 setupPuzzle();
88}
89
90void MainWindow::setupPuzzle()
91{
92 int size = qMin(puzzleImage.width(), puzzleImage.height());
93 puzzleImage = puzzleImage.copy((puzzleImage.width() - size)/2,
94 (puzzleImage.height() - size)/2, size, size).scaled(400,
95 400, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
96
97 piecesList->clear();
98
99 for (int y = 0; y < 5; ++y) {
100 for (int x = 0; x < 5; ++x) {
101 QPixmap pieceImage = puzzleImage.copy(x*80, y*80, 80, 80);
102 piecesList->addPiece(pieceImage, QPoint(x, y));
103 }
104 }
105
106 qsrand(QCursor::pos().x() ^ QCursor::pos().y());
107
108 for (int i = 0; i < piecesList->count(); ++i) {
109 if (int(2.0*qrand()/(RAND_MAX+1.0)) == 1) {
110 QListWidgetItem *item = piecesList->takeItem(i);
111 piecesList->insertItem(0, item);
112 }
113 }
114
115 puzzleWidget->clear();
116}
117
118void MainWindow::setupMenus()
119{
120 QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
121
122 QAction *openAction = fileMenu->addAction(tr("&Open..."));
123 openAction->setShortcuts(QKeySequence::Open);
124
125 QAction *exitAction = fileMenu->addAction(tr("E&xit"));
126 exitAction->setShortcuts(QKeySequence::Quit);
127
128 QMenu *gameMenu = menuBar()->addMenu(tr("&Game"));
129
130 QAction *restartAction = gameMenu->addAction(tr("&Restart"));
131
132 connect(openAction, SIGNAL(triggered()), this, SLOT(openImage()));
133 connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
134 connect(restartAction, SIGNAL(triggered()), this, SLOT(setupPuzzle()));
135}
136
137void MainWindow::setupWidgets()
138{
139 QFrame *frame = new QFrame;
140 QHBoxLayout *frameLayout = new QHBoxLayout(frame);
141
142 piecesList = new PiecesList;
143 puzzleWidget = new PuzzleWidget;
144
145 connect(puzzleWidget, SIGNAL(puzzleCompleted()),
146 this, SLOT(setCompleted()), Qt::QueuedConnection);
147
148 frameLayout->addWidget(piecesList);
149 frameLayout->addWidget(puzzleWidget);
150 setCentralWidget(frame);
151}
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