diff -r dee5afe5301f -r 3f74d0d4af4c doc/src/snippets/textdocument-tables/xmlwriter.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/doc/src/snippets/textdocument-tables/xmlwriter.cpp Thu Apr 08 14:19:33 2010 +0300 @@ -0,0 +1,154 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 + +#include "xmlwriter.h" + +QDomDocument *XmlWriter::toXml() +{ + QDomImplementation implementation; + QDomDocumentType docType = implementation.createDocumentType( + "scribe-document", "scribe", "qt.nokia.com/scribe"); + + document = new QDomDocument(docType); + + // ### This processing instruction is required to ensure that any kind + // of encoding is given when the document is written. + QDomProcessingInstruction process = document->createProcessingInstruction( + "xml", "version=\"1.0\" encoding=\"utf-8\""); + document->appendChild(process); + + QDomElement documentElement = document->createElement("document"); + document->appendChild(documentElement); + + QTextFrame *root = textDocument->rootFrame(); + + if (root) + processFrame(documentElement, root); + + return document; +} + +void XmlWriter::processBlock(QDomElement &parent, const QTextBlock &block) +{ + QDomElement blockElement = document->createElement("block"); + blockElement.setAttribute("position", block.position()); + blockElement.setAttribute("length", block.length()); + parent.appendChild(blockElement); + + QTextBlock::iterator it; + for (it = block.begin(); !(it.atEnd()); ++it) { + QTextFragment fragment = it.fragment(); + + if (fragment.isValid()) { + QDomElement fragmentElement = document->createElement("fragment"); + blockElement.appendChild(fragmentElement); + + fragmentElement.setAttribute("length", fragment.length()); + QDomText fragmentText = document->createTextNode(fragment.text()); + + fragmentElement.appendChild(fragmentText); + } + } +} + +void XmlWriter::processFrame(QDomElement &parent, QTextFrame *frame) +{ + QDomElement frameElement = document->createElement("frame"); + frameElement.setAttribute("begin", frame->firstPosition()); + frameElement.setAttribute("end", frame->lastPosition()); + parent.appendChild(frameElement); + +//! [0] + QTextFrame::iterator it; + for (it = frame->begin(); !(it.atEnd()); ++it) { + + QTextFrame *childFrame = it.currentFrame(); + QTextBlock childBlock = it.currentBlock(); + + if (childFrame) { + QTextTable *childTable = qobject_cast(childFrame); + + if (childTable) + processTable(frameElement, childTable); + else + processFrame(frameElement, childFrame); + + } else if (childBlock.isValid()) +//! [0] //! [1] + processBlock(frameElement, childBlock); + } +//! [1] +} + +void XmlWriter::processTable(QDomElement &parent, QTextTable *table) +{ + QDomElement element = document->createElement("table"); + + for (int row = 0; row < table->rows(); ++row) { + for (int column = 0; column < table->columns(); ++column) { + QTextTableCell cell = table->cellAt(row, column); + processTableCell(element, cell); + } + } + parent.appendChild(element); +} + +void XmlWriter::processTableCell(QDomElement &parent, const QTextTableCell &cell) +{ + QDomElement element = document->createElement("cell"); + element.setAttribute("row", cell.row()); + element.setAttribute("column", cell.column()); + + QTextFrame::iterator it; + for (it = cell.begin(); !(it.atEnd()); ++it) { + + QTextFrame *childFrame = it.currentFrame(); + QTextBlock childBlock = it.currentBlock(); + + if (childFrame) + processFrame(element, childFrame); + else if (childBlock.isValid()) + processBlock(element, childBlock); + } + parent.appendChild(element); +}