1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QtWidgets>
#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
setWindowTitle("Dock Widgets");
setupDockWindow();
setupContents();
setupMenus();
textBrowser = new QTextBrowser(this);
connect(headingList, &QListWidget::itemClicked,
this, &MainWindow::updateText);
updateText(headingList->item(0));
headingList->setCurrentRow(0);
setCentralWidget(textBrowser);
}
void MainWindow::setupContents()
{
QFile titlesFile(":/Resources/titles.txt");
titlesFile.open(QFile::ReadOnly);
int chapter = 0;
do {
QString line = titlesFile.readLine().trimmed();
QStringList parts = line.split(u'\t', Qt::SkipEmptyParts);
if (parts.size() != 2)
break;
QString chapterTitle = parts[0];
QString fileName = parts[1];
QFile chapterFile(fileName);
chapterFile.open(QFile::ReadOnly);
QListWidgetItem *item = new QListWidgetItem(chapterTitle, headingList);
item->setData(Qt::DisplayRole, chapterTitle);
item->setData(Qt::UserRole, chapterFile.readAll());
item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
chapterFile.close();
chapter++;
} while (titlesFile.isOpen());
titlesFile.close();
}
void MainWindow::setupDockWindow()
{
//! [0]
contentsWindow = new QDockWidget(tr("Table of Contents"), this);
contentsWindow->setAllowedAreas(Qt::LeftDockWidgetArea
| Qt::RightDockWidgetArea);
addDockWidget(Qt::LeftDockWidgetArea, contentsWindow);
headingList = new QListWidget(contentsWindow);
contentsWindow->setWidget(headingList);
//! [0]
}
void MainWindow::setupMenus()
{
QAction *exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcut(tr("Ctrl+Q"));
exitAct->setStatusTip(tr("Exit the application"));
connect(exitAct, &QAction::triggered, qApp, &QApplication::quit);
QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(exitAct);
}
void MainWindow::updateText(QListWidgetItem *item)
{
QString text = item->data(Qt::UserRole).toString();
textBrowser->setHtml(text);
}
|
