1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the documentation of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

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    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 

    44 #include "xmlwriter.h"

    45 

    46 QDomDocument *XmlWriter::toXml()

    47 {

    48     QDomImplementation implementation;

    49     QDomDocumentType docType = implementation.createDocumentType(

    50         "scribe-document", "scribe", "qt.nokia.com/scribe");

    51 

    52     document = new QDomDocument(docType);

    53 

    54     // ### This processing instruction is required to ensure that any kind

    55     // of encoding is given when the document is written.

    56     QDomProcessingInstruction process = document->createProcessingInstruction(

    57         "xml", "version=\"1.0\" encoding=\"utf-8\"");

    58     document->appendChild(process);

    59 

    60     QDomElement documentElement = document->createElement("document");

    61     document->appendChild(documentElement);

    62 

    63 //! [0]

    64     QTextFrame *root = textDocument->rootFrame();

    65 //! [0]

    66     

    67     if (root)

    68         processFrame(documentElement, root);

    69 

    70     return document;

    71 }

    72 

    73 void XmlWriter::processBlock(QDomElement &parent, const QTextBlock &block)

    74 {

    75     QDomElement blockElement = document->createElement("block");

    76     blockElement.setAttribute("position", block.position());

    77     blockElement.setAttribute("length", block.length());

    78     parent.appendChild(blockElement);

    79 

    80     QTextBlock::iterator it;

    81     for (it = block.begin(); !(it.atEnd()); ++it) {

    82         QTextFragment fragment = it.fragment();

    83 

    84         if (fragment.isValid()) {

    85             QDomElement fragmentElement = document->createElement("fragment");

    86             blockElement.appendChild(fragmentElement);

    87 

    88             fragmentElement.setAttribute("length", fragment.length());

    89             QDomText fragmentText = document->createTextNode(fragment.text());

    90 

    91             fragmentElement.appendChild(fragmentText);

    92         }

    93     }

    94 }

    95 

    96 void XmlWriter::processFrame(QDomElement &parent, QTextFrame *frame)

    97 {

    98     QDomElement frameElement = document->createElement("frame");

    99     frameElement.setAttribute("begin", frame->firstPosition());

   100     frameElement.setAttribute("end", frame->lastPosition());

   101     parent.appendChild(frameElement);

   102 

   103 //! [1]

   104     QTextFrame::iterator it;

   105     for (it = frame->begin(); !(it.atEnd()); ++it) {

   106 

   107         QTextFrame *childFrame = it.currentFrame();

   108         QTextBlock childBlock = it.currentBlock();

   109 

   110         if (childFrame)

   111 //! [1] //! [2]

   112             processFrame(frameElement, childFrame);

   113         else if (childBlock.isValid())

   114             processBlock(frameElement, childBlock);

   115     }

   116 //! [2]

   117 }