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50
51#include "assistant.h"
52#include "findfiledialog.h"
53#include "mainwindow.h"
54#include "textedit.h"
55
56#include <QAction>
57#include <QApplication>
58#include <QLibraryInfo>
59#include <QMenu>
60#include <QMenuBar>
61#include <QMessageBox>
62
63// ![0]
64MainWindow::MainWindow()
65{
66 assistant = new Assistant;
67// ![0]
68 textViewer = new TextEdit;
69 textViewer->setContents(QLibraryInfo::location(QLibraryInfo::ExamplesPath)
70 + QLatin1String("/assistant/simpletextviewer/documentation/intro.html"));
71 setCentralWidget(textViewer);
72
73 createActions();
74 createMenus();
75
76 setWindowTitle(tr(s: "Simple Text Viewer"));
77 resize(w: 750, h: 400);
78// ![1]
79}
80//! [1]
81
82//! [2]
83void MainWindow::closeEvent(QCloseEvent *)
84{
85 delete assistant;
86}
87//! [2]
88
89void MainWindow::about()
90{
91 QMessageBox::about(parent: this, title: tr(s: "About Simple Text Viewer"),
92 text: tr(s: "This example demonstrates how to use\n"
93 "Qt Assistant as help system for your\n"
94 "own application."));
95}
96
97//! [3]
98void MainWindow::showDocumentation()
99{
100 assistant->showDocumentation(file: "index.html");
101}
102//! [3]
103
104void MainWindow::open()
105{
106 FindFileDialog dialog(textViewer, assistant);
107 dialog.exec();
108}
109
110//! [4]
111void MainWindow::createActions()
112{
113 assistantAct = new QAction(tr(s: "Help Contents"), this);
114 assistantAct->setShortcut(QKeySequence::HelpContents);
115 connect(sender: assistantAct, signal: &QAction::triggered, receiver: this, slot: &MainWindow::showDocumentation);
116//! [4]
117
118 openAct = new QAction(tr(s: "&Open..."), this);
119 openAct->setShortcut(QKeySequence::Open);
120 connect(sender: openAct, signal: &QAction::triggered, receiver: this, slot: &MainWindow::open);
121
122 clearAct = new QAction(tr(s: "&Clear"), this);
123 clearAct->setShortcut(tr(s: "Ctrl+C"));
124 connect(sender: clearAct, signal: &QAction::triggered, receiver: textViewer, slot: &QTextEdit::clear);
125
126 exitAct = new QAction(tr(s: "E&xit"), this);
127 exitAct->setShortcuts(QKeySequence::Quit);
128 connect(sender: exitAct, signal: &QAction::triggered, receiver: this, slot: &QWidget::close);
129
130 aboutAct = new QAction(tr(s: "&About"), this);
131 connect(sender: aboutAct, signal: &QAction::triggered, receiver: this, slot: &MainWindow::about);
132
133 aboutQtAct = new QAction(tr(s: "About &Qt"), this);
134 connect(sender: aboutQtAct, signal: &QAction::triggered, slot: QApplication::aboutQt);
135//! [5]
136}
137//! [5]
138
139void MainWindow::createMenus()
140{
141 fileMenu = new QMenu(tr(s: "&File"), this);
142 fileMenu->addAction(action: openAct);
143 fileMenu->addAction(action: clearAct);
144 fileMenu->addSeparator();
145 fileMenu->addAction(action: exitAct);
146
147 helpMenu = new QMenu(tr(s: "&Help"), this);
148 helpMenu->addAction(action: assistantAct);
149 helpMenu->addSeparator();
150 helpMenu->addAction(action: aboutAct);
151 helpMenu->addAction(action: aboutQtAct);
152
153
154 menuBar()->addMenu(menu: fileMenu);
155 menuBar()->addMenu(menu: helpMenu);
156}
157

source code of qttools/examples/assistant/simpletextviewer/mainwindow.cpp