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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "mainwindow.h"
#include "xmlwriter.h"
MainWindow::MainWindow()
{
QMenu *fileMenu = new QMenu(tr("&File"));
QAction *saveAction = fileMenu->addAction(tr("&Save..."));
saveAction->setShortcut(tr("Ctrl+S"));
QAction *quitAction = fileMenu->addAction(tr("E&xit"));
quitAction->setShortcut(tr("Ctrl+Q"));
menuBar()->addMenu(fileMenu);
editor = new QTextEdit();
QTextCursor cursor(editor->textCursor());
cursor.movePosition(QTextCursor::Start);
QTextFrame *mainFrame = cursor.currentFrame();
QTextCharFormat plainCharFormat;
QTextCharFormat boldCharFormat;
boldCharFormat.setFontWeight(QFont::Bold);
/* main frame
//! [0]
QTextFrame *mainFrame = cursor.currentFrame();
cursor.insertText(...);
//! [0]
*/
cursor.insertText("Text documents are represented by the "
"QTextDocument class, rather than by QString objects. "
"Each QTextDocument object contains information about "
"the document's internal representation, its structure, "
"and keeps track of modifications to provide undo/redo "
"facilities. This approach allows features such as the "
"layout management to be delegated to specialized "
"classes, but also provides a focus for the framework.",
plainCharFormat);
//! [1]
QTextFrameFormat frameFormat;
frameFormat.setMargin(32);
frameFormat.setPadding(8);
frameFormat.setBorder(4);
//! [1]
cursor.insertFrame(frameFormat);
/* insert frame
//! [2]
cursor.insertFrame(frameFormat);
cursor.insertText(...);
//! [2]
*/
cursor.insertText("Documents are either converted from external sources "
"or created from scratch using Qt. The creation process "
"can done by an editor widget, such as QTextEdit, or by "
"explicit calls to the Scribe API.", boldCharFormat);
cursor = mainFrame->lastCursorPosition();
/* last cursor
//! [3]
cursor = mainFrame->lastCursorPosition();
cursor.insertText(...);
//! [3]
*/
cursor.insertText("There are two complementary ways to visualize the "
"contents of a document: as a linear buffer that is "
"used by editors to modify the contents, and as an "
"object hierarchy containing structural information "
"that is useful to layout engines. In the hierarchical "
"model, the objects generally correspond to visual "
"elements such as frames, tables, and lists. At a lower "
"level, these elements describe properties such as the "
"style of text used and its alignment. The linear "
"representation of the document is used for editing and "
"manipulation of the document's contents.",
plainCharFormat);
connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile()));
connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
setCentralWidget(editor);
setWindowTitle(tr("Text Document Frames"));
}
void MainWindow::saveFile()
{
QString fileName = QFileDialog::getSaveFileName(this,
tr("Save document as:"), "", tr("XML (*.xml)"));
if (!fileName.isEmpty()) {
if (writeXml(fileName))
setWindowTitle(fileName);
else
QMessageBox::warning(this, tr("Warning"),
tr("Failed to save the document."), QMessageBox::Cancel,
QMessageBox::NoButton);
}
}
bool MainWindow::writeXml(const QString &fileName)
{
XmlWriter documentWriter(editor->document());
QDomDocument *domDocument = documentWriter.toXml();
QFile file(fileName);
if (file.open(QFile::WriteOnly)) {
QTextStream textStream(&file);
textStream.setCodec(QTextCodec::codecForName("UTF-8"));
textStream << domDocument->toString(1).toUtf8();
file.close();
return true;
}
else
return false;
}
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