mainwindow.cpp Example File
xml/streambookmarks/mainwindow.cpp
#include <QtGui>
#include "mainwindow.h"
#include "xbelreader.h"
#include "xbelwriter.h"
MainWindow::MainWindow()
{
QStringList labels;
labels << tr("Title") << tr("Location");
treeWidget = new QTreeWidget;
treeWidget->header()->setResizeMode(QHeaderView::Stretch);
treeWidget->setHeaderLabels(labels);
setCentralWidget(treeWidget);
createActions();
createMenus();
statusBar()->showMessage(tr("Ready"));
setWindowTitle(tr("QXmlStream Bookmarks"));
resize(480, 320);
}
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();
QFile file(fileName);
if (!file.open(QFile::ReadOnly | QFile::Text)) {
QMessageBox::warning(this, tr("QXmlStream Bookmarks"),
tr("Cannot read file %1:\n%2.")
.arg(fileName)
.arg(file.errorString()));
return;
}
XbelReader reader(treeWidget);
if (!reader.read(&file)) {
QMessageBox::warning(this, tr("QXmlStream Bookmarks"),
tr("Parse error in file %1:\n\n%2")
.arg(fileName)
.arg(reader.errorString()));
} else {
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("QXmlStream Bookmarks"),
tr("Cannot write file %1:\n%2.")
.arg(fileName)
.arg(file.errorString()));
return;
}
XbelWriter writer(treeWidget);
if (writer.writeFile(&file))
statusBar()->showMessage(tr("File saved"), 2000);
}
void MainWindow::about()
{
QMessageBox::about(this, tr("About QXmlStream Bookmarks"),
tr("The <b>QXmlStream Bookmarks</b> example demonstrates how to use Qt's "
"QXmlStream classes to read and write XML documents."));
}
void MainWindow::createActions()
{
openAct = new QAction(tr("&Open..."), this);
openAct->setShortcuts(QKeySequence::Open);
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
saveAsAct = new QAction(tr("&Save As..."), this);
saveAsAct->setShortcuts(QKeySequence::SaveAs);
connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcuts(QKeySequence::Quit);
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
aboutAct = new QAction(tr("&About"), this);
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutQtAct = new QAction(tr("About &Qt"), this);
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}
void MainWindow::createMenus()
{
fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(openAct);
fileMenu->addAction(saveAsAct);
fileMenu->addAction(exitAct);
menuBar()->addSeparator();
helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
}
Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) |
Trademarks |
Qt 4.6.0 |