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

     2 **

     3 ** Copyright (C) 2010 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.

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    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     QTextFrame *root = textDocument->rootFrame();

    64     

    65     if (root)

    66         processFrame(documentElement, root);

    67 

    68     return document;

    69 }

    70 

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

    72 {

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

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

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

    76     parent.appendChild(blockElement);

    77 

    78     QTextBlock::iterator it;

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

    80         QTextFragment fragment = it.fragment();

    81 

    82         if (fragment.isValid()) {

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

    84             blockElement.appendChild(fragmentElement);

    85 

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

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

    88 

    89             fragmentElement.appendChild(fragmentText);

    90         }

    91     }

    92 }

    93 

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

    95 {

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

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

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

    99     parent.appendChild(frameElement);

   100 

   101 //! [0]

   102     QTextFrame::iterator it;

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

   104 

   105         QTextFrame *childFrame = it.currentFrame();

   106         QTextBlock childBlock = it.currentBlock();

   107 

   108         if (childFrame) {

   109             QTextTable *childTable = qobject_cast<QTextTable*>(childFrame);

   110 

   111             if (childTable)

   112                 processTable(frameElement, childTable);

   113             else

   114                 processFrame(frameElement, childFrame);

   115 

   116         } else if (childBlock.isValid())

   117 //! [0] //! [1]

   118             processBlock(frameElement, childBlock);

   119     }

   120 //! [1]

   121 }

   122 

   123 void XmlWriter::processTable(QDomElement &parent, QTextTable *table)

   124 {

   125     QDomElement element = document->createElement("table");

   126 

   127     for (int row = 0; row < table->rows(); ++row) {

   128         for (int column = 0; column < table->columns(); ++column) {

   129             QTextTableCell cell = table->cellAt(row, column);

   130             processTableCell(element, cell);

   131         }

   132     }

   133     parent.appendChild(element);

   134 }

   135 

   136 void XmlWriter::processTableCell(QDomElement &parent, const QTextTableCell &cell)

   137 {

   138     QDomElement element = document->createElement("cell");

   139     element.setAttribute("row", cell.row());

   140     element.setAttribute("column", cell.column());

   141     

   142     QTextFrame::iterator it;

   143     for (it = cell.begin(); !(it.atEnd()); ++it) {

   144 

   145         QTextFrame *childFrame = it.currentFrame();

   146         QTextBlock childBlock = it.currentBlock();

   147 

   148         if (childFrame)

   149             processFrame(element, childFrame);

   150         else if (childBlock.isValid())

   151             processBlock(element, childBlock);

   152     }

   153     parent.appendChild(element);

   154 }