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#include <QtGui>
#include <QtWebKit>
#include "mainwindow.h"
MainWindow::MainWindow()
{
createActions();
createMenus();
centralWidget = new Previewer(this);
setCentralWidget(centralWidget);
connect(centralWidget->webView, SIGNAL(loadFinished(bool)),
this, SLOT(updateTextEdit()));
setStartupText();
}
void MainWindow::createActions()
{
openAct = new QAction(tr("&Open..."), this);
openAct->setShortcuts(QKeySequence::Open);
openAct->setStatusTip(tr("Open an existing HTML file"));
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
openUrlAct = new QAction(tr("&Open URL..."), this);
openUrlAct->setShortcut(tr("Ctrl+U"));
openUrlAct->setStatusTip(tr("Open a URL"));
connect(openUrlAct, SIGNAL(triggered()), this, SLOT(openUrl()));
saveAct = new QAction(tr("&Save"), this);
saveAct->setShortcuts(QKeySequence::Save);
saveAct->setStatusTip(tr("Save the HTML file to disk"));
connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setStatusTip(tr("Exit the application"));
exitAct->setShortcuts(QKeySequence::Quit);
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
aboutAct = new QAction(tr("&About"), this);
aboutAct->setStatusTip(tr("Show the application's About box"));
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutQtAct = new QAction(tr("About &Qt"), this);
aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}
void MainWindow::createMenus()
{
fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(openAct);
fileMenu->addAction(openUrlAct);
fileMenu->addAction(saveAct);
fileMenu->addSeparator();
fileMenu->addAction(exitAct);
menuBar()->addSeparator();
helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
}
void MainWindow::about()
{
QMessageBox::about(this, tr("About Previewer"),
tr("The <b>Previewer</b> example demonstrates how to "
"view HTML documents using a QWebView."));
}
void MainWindow::open()
{
QString fileName = QFileDialog::getOpenFileName(this);
if (!fileName.isEmpty()) {
<span class="comment">// read from file</span>
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly)) {
QMessageBox::information(this, tr("Unable to open file"),
file.errorString());
return;
}
QTextStream out(&file);
QString output = out.readAll();
<span class="comment">// display contents</span>
centralWidget->plainTextEdit->setPlainText(output);
centralWidget->setBaseUrl(QUrl::fromLocalFile(fileName));
}
}
void MainWindow::openUrl()
{
bool ok;
QString url = QInputDialog::getText(this, tr("Enter a URL"),
tr("URL:"), QLineEdit::Normal, "http:<span class="comment">//", &ok);</span>
if (ok && !url.isEmpty()) {
centralWidget->webView->setUrl(url);
}
}
void MainWindow::save()
{
QString content = centralWidget->plainTextEdit->toPlainText();
QString fileName = QFileDialog::getSaveFileName(this);
if (!fileName.isEmpty()) {
<span class="comment">// save to file</span>
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly)) {
QMessageBox::information(this, tr("Unable to open file"),
file.errorString());
return;
}
QTextStream in(&file);
in << content;
}
}
void MainWindow::updateTextEdit()
{
QWebFrame *mainFrame = centralWidget->webView->page()->mainFrame();
QString frameText = mainFrame->toHtml();
centralWidget->plainTextEdit->setPlainText(frameText);
}
void MainWindow::setStartupText()
{
QString string = "<html><body><h1>HTML Previewer</h1>"
" <p>This example shows you how to use QWebView to"
" preview HTML data written in a QPlainTextEdit.</p>"
" </body></html>";
centralWidget->webView->setHtml(string);
}</pre>
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distrib
>
Mandriva
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current
>
i586
>
media
>
main-updates
>
by-pkgid
>
8e6051afcdb111a0317a58fb64c2abf5
>
files
>
6213
