doc/src/snippets/textdocument-imageformat/main.cpp
author Alex Gilkes <alex.gilkes@nokia.com>
Mon, 11 Jan 2010 14:00:40 +0000
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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QString tr(const char *text)
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{
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    return QApplication::translate(text, text);
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}
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int main(int argc, char *argv[])
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{
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    QApplication app(argc, argv);
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    QTextEdit *editor = new QTextEdit;
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    QTextDocument *document = new QTextDocument(editor);
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    QTextCursor cursor(document);
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    QTextImageFormat imageFormat;
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    imageFormat.setName(":/images/advert.png");
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    cursor.insertImage(imageFormat);
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    QTextBlock block = cursor.block();
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    QTextFragment fragment;
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    QTextBlock::iterator it;
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    for (it = block.begin(); !(it.atEnd()); ++it) {
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        fragment = it.fragment();
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        if (fragment.contains(cursor.position()))
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            break;
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    }
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//! [0]
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    if (fragment.isValid()) {
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        QTextImageFormat newImageFormat = fragment.charFormat().toImageFormat();
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        if (newImageFormat.isValid()) {
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            newImageFormat.setName(":/images/newimage.png");
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            QTextCursor helper = cursor;
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            helper.setPosition(fragment.position());
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            helper.setPosition(fragment.position() + fragment.length(),
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                                QTextCursor::KeepAnchor);
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            helper.setCharFormat(newImageFormat);
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//! [0] //! [1]
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        }
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//! [1] //! [2]
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    }
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//! [2]
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    cursor.insertBlock();
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    cursor.insertText("Code less. Create more.");
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    editor->setDocument(document);
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    editor->setWindowTitle(tr("Text Document Image Format"));
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    editor->resize(320, 480);
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    editor->show();
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    return app.exec();
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}