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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include <QMenu>
#include <QMenuBar>
#include <QTextEdit>
#include <QFileDialog>
#include <QPrinter>
#include <QPrintDialog>
MainWindow::MainWindow()
{
QMenu *fileMenu = new QMenu(tr("&File"));
fileMenu->addAction(tr("&Open..."), QKeySequence(tr("Ctrl+O", "File|Open"))
this, SLOT(openFile()));
printAction = fileMenu->addAction(tr("&Print..."), this, SLOT(printFile()));
printAction->setEnabled(false);
pdfPrintAction = fileMenu->addAction(tr("Print as P&DF..."), this, SLOT(printPdf()));
pdfPrintAction->setEnabled(false);
fileMenu->addAction(tr("E&xit"), QKeySequence(tr("Ctrl+Q", "File|Exit")),
this, SLOT(close()));
menuBar()->addMenu(fileMenu);
editor = new QTextEdit(this);
document = new QTextDocument(this);
editor->setDocument(document);
connect(editor, &QTextEdit::selectionChanged, this, &MainWindow::updateMenus);
setCentralWidget(editor);
setWindowTitle(tr("Text Document Writer"));
}
void MainWindow::openFile()
{
QString fileName = QFileDialog::getOpenFileName(this,
tr("Open file"), currentFile, "HTML files (*.html);;Text files (*.txt)");
if (!fileName.isEmpty()) {
QFileInfo info(fileName);
if (info.completeSuffix() == "html") {
QFile file(fileName);
if (file.open(QIODevice::ReadOnly)) {
editor->setHtml(file.readAll());
file.close();
currentFile = fileName;
}
} else if (info.completeSuffix() == "txt") {
QFile file(fileName);
if (file.open(QIODevice::ReadOnly)) {
editor->setPlainText(file.readAll());
file.close();
currentFile = fileName;
}
}
printAction->setEnabled(true);
pdfPrintAction->setEnabled(true);
}
}
void MainWindow::printFile()
{
//! [0]
QTextDocument *document = editor->document();
QPrinter printer;
QPrintDialog *dlg = new QPrintDialog(&printer, this);
if (dlg->exec() != QDialog::Accepted)
return;
document->print(&printer);
//! [0]
}
void MainWindow::printPdf()
{
QPrinter printer(QPrinter::HighResolution);
printer.setOutputFormat(QPrinter::PdfFormat);
QPrintDialog *printDialog = new QPrintDialog(&printer, this);
if (printDialog->exec() == QDialog::Accepted)
editor->document()->print(&printer);
}
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