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50
51#include "mainwindow.h"
52
53#include <QAction>
54#include <QFileDialog>
55#include <QMenuBar>
56
57//! [0]
58MainWindow::MainWindow()
59 : QMainWindow(),
60 addressWidget(new AddressWidget)
61{
62 setCentralWidget(addressWidget);
63 createMenus();
64 setWindowTitle(tr(s: "Address Book"));
65}
66//! [0]
67
68//! [1a]
69void MainWindow::createMenus()
70{
71 QMenu *fileMenu = menuBar()->addMenu(title: tr(s: "&File"));
72
73 QAction *openAct = new QAction(tr(s: "&Open..."), this);
74 fileMenu->addAction(action: openAct);
75 connect(sender: openAct, signal: &QAction::triggered, receiver: this, slot: &MainWindow::openFile);
76//! [1a]
77
78 QAction *saveAct = new QAction(tr(s: "&Save As..."), this);
79 fileMenu->addAction(action: saveAct);
80 connect(sender: saveAct, signal: &QAction::triggered, receiver: this, slot: &MainWindow::saveFile);
81
82 fileMenu->addSeparator();
83
84 QAction *exitAct = new QAction(tr(s: "E&xit"), this);
85 fileMenu->addAction(action: exitAct);
86 connect(sender: exitAct, signal: &QAction::triggered, receiver: this, slot: &QWidget::close);
87
88 QMenu *toolMenu = menuBar()->addMenu(title: tr(s: "&Tools"));
89
90 QAction *addAct = new QAction(tr(s: "&Add Entry..."), this);
91 toolMenu->addAction(action: addAct);
92 connect(sender: addAct, signal: &QAction::triggered,
93 receiver: addressWidget, slot: &AddressWidget::showAddEntryDialog);
94
95//! [1b]
96 editAct = new QAction(tr(s: "&Edit Entry..."), this);
97 editAct->setEnabled(false);
98 toolMenu->addAction(action: editAct);
99 connect(sender: editAct, signal: &QAction::triggered, receiver: addressWidget, slot: &AddressWidget::editEntry);
100
101 toolMenu->addSeparator();
102
103 removeAct = new QAction(tr(s: "&Remove Entry"), this);
104 removeAct->setEnabled(false);
105 toolMenu->addAction(action: removeAct);
106 connect(sender: removeAct, signal: &QAction::triggered, receiver: addressWidget, slot: &AddressWidget::removeEntry);
107
108 connect(sender: addressWidget, signal: &AddressWidget::selectionChanged,
109 receiver: this, slot: &MainWindow::updateActions);
110}
111//! [1b]
112
113//! [2]
114void MainWindow::openFile()
115{
116 QString fileName = QFileDialog::getOpenFileName(parent: this);
117 if (!fileName.isEmpty())
118 addressWidget->readFromFile(fileName);
119}
120//! [2]
121
122//! [3]
123void MainWindow::saveFile()
124{
125 QString fileName = QFileDialog::getSaveFileName(parent: this);
126 if (!fileName.isEmpty())
127 addressWidget->writeToFile(fileName);
128}
129//! [3]
130
131//! [4]
132void MainWindow::updateActions(const QItemSelection &selection)
133{
134 QModelIndexList indexes = selection.indexes();
135
136 if (!indexes.isEmpty()) {
137 removeAct->setEnabled(true);
138 editAct->setEnabled(true);
139 } else {
140 removeAct->setEnabled(false);
141 editAct->setEnabled(false);
142 }
143}
144//! [4]
145

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