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50
51#include "mainwindow.h"
52#include "piecesmodel.h"
53#include "puzzlewidget.h"
54
55#include <QtWidgets>
56#include <stdlib.h>
57
58MainWindow::MainWindow(QWidget *parent)
59 : QMainWindow(parent)
60{
61 setupMenus();
62 setupWidgets();
63 model = new PiecesModel(puzzleWidget->pieceSize(), this);
64 piecesList->setModel(model);
65
66 setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
67 setWindowTitle(tr(s: "Puzzle"));
68}
69
70void MainWindow::openImage()
71{
72 const QString directory =
73 QStandardPaths::standardLocations(type: QStandardPaths::PicturesLocation).value(i: 0, defaultValue: QDir::homePath());
74 QFileDialog dialog(this, tr(s: "Open Image"), directory);
75 dialog.setAcceptMode(QFileDialog::AcceptOpen);
76 dialog.setFileMode(QFileDialog::ExistingFile);
77 QStringList mimeTypeFilters;
78 for (const QByteArray &mimeTypeName : QImageReader::supportedMimeTypes())
79 mimeTypeFilters.append(t: mimeTypeName);
80 mimeTypeFilters.sort();
81 dialog.setMimeTypeFilters(mimeTypeFilters);
82 dialog.selectMimeTypeFilter(filter: "image/jpeg");
83 if (dialog.exec() == QDialog::Accepted)
84 loadImage(path: dialog.selectedFiles().constFirst());
85}
86
87void MainWindow::loadImage(const QString &fileName)
88{
89 QPixmap newImage;
90 if (!newImage.load(fileName)) {
91 QMessageBox::warning(parent: this, title: tr(s: "Open Image"),
92 text: tr(s: "The image file could not be loaded."),
93 buttons: QMessageBox::Close);
94 return;
95 }
96 puzzleImage = newImage;
97 setupPuzzle();
98}
99
100void MainWindow::setCompleted()
101{
102 QMessageBox::information(parent: this, title: tr(s: "Puzzle Completed"),
103 text: tr(s: "Congratulations! You have completed the puzzle!\n"
104 "Click OK to start again."),
105 button0: QMessageBox::Ok);
106
107 setupPuzzle();
108}
109
110void MainWindow::setupPuzzle()
111{
112 int size = qMin(a: puzzleImage.width(), b: puzzleImage.height());
113 puzzleImage = puzzleImage.copy(ax: (puzzleImage.width() - size) / 2,
114 ay: (puzzleImage.height() - size) / 2, awidth: size, aheight: size).scaled(w: puzzleWidget->imageSize(),
115 h: puzzleWidget->imageSize(), aspectMode: Qt::IgnoreAspectRatio, mode: Qt::SmoothTransformation);
116
117 model->addPieces(pixmap: puzzleImage);
118 puzzleWidget->clear();
119}
120
121void MainWindow::setupMenus()
122{
123 QMenu *fileMenu = menuBar()->addMenu(title: tr(s: "&File"));
124
125 QAction *openAction = fileMenu->addAction(text: tr(s: "&Open..."), object: this, slot: &MainWindow::openImage);
126 openAction->setShortcuts(QKeySequence::Open);
127
128 QAction *exitAction = fileMenu->addAction(text: tr(s: "E&xit"), qApp, slot: &QCoreApplication::quit);
129 exitAction->setShortcuts(QKeySequence::Quit);
130
131 QMenu *gameMenu = menuBar()->addMenu(title: tr(s: "&Game"));
132
133 gameMenu->addAction(text: tr(s: "&Restart"), object: this, slot: &MainWindow::setupPuzzle);
134}
135
136void MainWindow::setupWidgets()
137{
138 QFrame *frame = new QFrame;
139 QHBoxLayout *frameLayout = new QHBoxLayout(frame);
140
141 puzzleWidget = new PuzzleWidget(400);
142
143 piecesList = new QListView;
144 piecesList->setDragEnabled(true);
145 piecesList->setViewMode(QListView::IconMode);
146 piecesList->setIconSize(QSize(puzzleWidget->pieceSize() - 20, puzzleWidget->pieceSize() - 20));
147 piecesList->setGridSize(QSize(puzzleWidget->pieceSize(), puzzleWidget->pieceSize()));
148 piecesList->setSpacing(10);
149 piecesList->setMovement(QListView::Snap);
150 piecesList->setAcceptDrops(true);
151 piecesList->setDropIndicatorShown(true);
152
153 PiecesModel *model = new PiecesModel(puzzleWidget->pieceSize(), this);
154 piecesList->setModel(model);
155
156 connect(sender: puzzleWidget, signal: &PuzzleWidget::puzzleCompleted,
157 receiver: this, slot: &MainWindow::setCompleted, type: Qt::QueuedConnection);
158
159 frameLayout->addWidget(piecesList);
160 frameLayout->addWidget(puzzleWidget);
161 setCentralWidget(frame);
162}
163

source code of qtbase/examples/widgets/itemviews/puzzle/mainwindow.cpp