/qtbase/examples/xml/saxbookmarks/mainwindow.cpp
C++ | 177 lines | 106 code | 22 blank | 49 comment | 14 complexity | 676870200ea6f4f069714e254f0e6c0b MD5 | raw file
Possible License(s): GPL-3.0, MPL-2.0, CC-BY-SA-3.0, LGPL-2.0, Unlicense, BSD-3-Clause, Apache-2.0, LGPL-3.0, MIT, WTFPL, GPL-2.0, MPL-2.0-no-copyleft-exception, AGPL-3.0, LGPL-2.1, BSD-2-Clause, 0BSD, JSON, ISC
- /****************************************************************************
- **
- ** Copyright (C) 2016 The Qt Company Ltd.
- ** Contact: https://www.qt.io/licensing/
- **
- ** This file is part of the examples of the Qt Toolkit.
- **
- ** $QT_BEGIN_LICENSE:BSD$
- ** Commercial License Usage
- ** Licensees holding valid commercial Qt licenses may use this file in
- ** accordance with the commercial license agreement provided with the
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- ** information use the contact form at https://www.qt.io/contact-us.
- **
- ** BSD License Usage
- ** Alternatively, you may use this file under the terms of the BSD license
- ** as follows:
- **
- ** "Redistribution and use in source and binary forms, with or without
- ** modification, are permitted provided that the following conditions are
- ** met:
- ** * Redistributions of source code must retain the above copyright
- ** notice, this list of conditions and the following disclaimer.
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- ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
- **
- ** $QT_END_LICENSE$
- **
- ****************************************************************************/
-
- #include <QtWidgets>
-
- #include "mainwindow.h"
- #include "xbelgenerator.h"
- #include "xbelhandler.h"
-
- MainWindow::MainWindow()
- {
- QStringList labels;
- labels << tr("Title") << tr("Location");
-
- treeWidget = new QTreeWidget;
- treeWidget->header()->setSectionResizeMode(QHeaderView::Stretch);
- treeWidget->setHeaderLabels(labels);
- #if !defined(QT_NO_CONTEXTMENU) && !defined(QT_NO_CLIPBOARD)
- treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
- connect(treeWidget, &QWidget::customContextMenuRequested,
- this, &MainWindow::onCustomContextMenuRequested);
- #endif
- setCentralWidget(treeWidget);
-
- createMenus();
-
- statusBar()->showMessage(tr("Ready"));
-
- setWindowTitle(tr("SAX Bookmarks"));
- const QSize availableSize = QApplication::desktop()->availableGeometry(this).size();
- resize(availableSize.width() / 2, availableSize.height() / 3);
- }
-
- #if !defined(QT_NO_CONTEXTMENU) && !defined(QT_NO_CLIPBOARD)
- void MainWindow::onCustomContextMenuRequested(const QPoint &pos)
- {
- const QTreeWidgetItem *item = treeWidget->itemAt(pos);
- if (!item)
- return;
- const QString url = item->text(1);
- QMenu contextMenu;
- QAction *copyAction = contextMenu.addAction(tr("Copy Link to Clipboard"));
- QAction *openAction = contextMenu.addAction(tr("Open"));
- QAction *action = contextMenu.exec(treeWidget->viewport()->mapToGlobal(pos));
- if (action == copyAction)
- QGuiApplication::clipboard()->setText(url);
- else if (action == openAction)
- QDesktopServices::openUrl(QUrl(url));
- }
- #endif // !QT_NO_CONTEXTMENU && !QT_NO_CLIPBOARD
-
- void MainWindow::open()
- {
- QString fileName =
- QFileDialog::getOpenFileName(this, tr("Open Bookmark File"),
- QDir::currentPath(),
- tr("XBEL Files (*.xbel *.xml)"));
- if (fileName.isEmpty())
- return;
-
- treeWidget->clear();
-
- XbelHandler handler(treeWidget);
- QXmlSimpleReader reader;
- reader.setContentHandler(&handler);
- reader.setErrorHandler(&handler);
-
- QFile file(fileName);
- if (!file.open(QFile::ReadOnly | QFile::Text)) {
- QMessageBox::warning(this, tr("SAX Bookmarks"),
- tr("Cannot read file %1:\n%2.")
- .arg(QDir::toNativeSeparators(fileName),
- file.errorString()));
- return;
- }
-
- QXmlInputSource xmlInputSource(&file);
- if (reader.parse(xmlInputSource))
- statusBar()->showMessage(tr("File loaded"), 2000);
- }
-
- void MainWindow::saveAs()
- {
- QString fileName =
- QFileDialog::getSaveFileName(this, tr("Save Bookmark File"),
- QDir::currentPath(),
- tr("XBEL Files (*.xbel *.xml)"));
- if (fileName.isEmpty())
- return;
-
- QFile file(fileName);
- if (!file.open(QFile::WriteOnly | QFile::Text)) {
- QMessageBox::warning(this, tr("SAX Bookmarks"),
- tr("Cannot write file %1:\n%2.")
- .arg(QDir::toNativeSeparators(fileName),
- file.errorString()));
- return;
- }
-
- XbelGenerator generator(treeWidget);
- if (generator.write(&file))
- statusBar()->showMessage(tr("File saved"), 2000);
- }
-
- void MainWindow::about()
- {
- QMessageBox::about(this, tr("About SAX Bookmarks"),
- tr("The <b>SAX Bookmarks</b> example demonstrates how to use Qt's "
- "SAX classes to read XML documents and how to generate XML by "
- "hand."));
- }
-
- void MainWindow::createMenus()
- {
- QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
- QAction *openAct = fileMenu->addAction(tr("&Open..."), this, &MainWindow::open);
- openAct->setShortcuts(QKeySequence::Open);
-
- QAction *saveAsAct = fileMenu->addAction(tr("&Save As..."), this, &MainWindow::saveAs);
- saveAsAct->setShortcuts(QKeySequence::SaveAs);
-
- QAction *exitAct = fileMenu->addAction(tr("E&xit"), this, &QWidget::close);
- exitAct->setShortcuts(QKeySequence::Quit);
-
- menuBar()->addSeparator();
-
- QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
- helpMenu->addAction(tr("&About"), this, &MainWindow::about);
- helpMenu->addAction(tr("About &Qt"), qApp, &QCoreApplication::quit);
- }