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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 QtGui module 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTEXTDOCUMENTFRAGMENT_P_H
#define QTEXTDOCUMENTFRAGMENT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtGui/qtextdocument.h"
#include "private/qtexthtmlparser_p.h"
#include "private/qtextdocument_p.h"
#include "QtGui/qtexttable.h"
#include "QtCore/qatomic.h"
#include "QtCore/qlist.h"
#include "QtCore/qmap.h"
#include "QtCore/qpointer.h"
#include "QtCore/qvarlengtharray.h"
#include "QtCore/qdatastream.h"
QT_BEGIN_NAMESPACE
class QTextDocumentFragmentPrivate;
class QTextCopyHelper
{
public:
QTextCopyHelper(const QTextCursor &_source, const QTextCursor &_destination, bool forceCharFormat = false, const QTextCharFormat &fmt = QTextCharFormat());
void copy();
private:
void appendFragments(int pos, int endPos);
int appendFragment(int pos, int endPos, int objectIndex = -1);
int convertFormatIndex(const QTextFormat &oldFormat, int objectIndexToSet = -1);
inline int convertFormatIndex(int oldFormatIndex, int objectIndexToSet = -1)
{ return convertFormatIndex(src->formatCollection()->format(oldFormatIndex), objectIndexToSet); }
inline QTextFormat convertFormat(const QTextFormat &fmt)
{ return dst->formatCollection()->format(convertFormatIndex(fmt)); }
int insertPos;
bool forceCharFormat;
int primaryCharFormatIndex;
QTextCursor cursor;
QTextDocumentPrivate *dst;
QTextDocumentPrivate *src;
QTextFormatCollection &formatCollection;
const QString originalText;
QMap<int, int> objectIndexMap;
};
class QTextDocumentFragmentPrivate
{
public:
QTextDocumentFragmentPrivate(const QTextCursor &cursor = QTextCursor());
inline ~QTextDocumentFragmentPrivate() { delete doc; }
void insert(QTextCursor &cursor) const;
QAtomicInt ref;
QTextDocument *doc;
uint importedFromPlainText : 1;
private:
Q_DISABLE_COPY(QTextDocumentFragmentPrivate)
};
#ifndef QT_NO_TEXTHTMLPARSER
class QTextHtmlImporter : public QTextHtmlParser
{
struct Table;
public:
enum ImportMode {
ImportToFragment,
ImportToDocument
};
QTextHtmlImporter(QTextDocument *_doc, const QString &html,
ImportMode mode,
const QTextDocument *resourceProvider = 0);
void import();
private:
bool closeTag();
Table scanTable(int tableNodeIdx);
enum ProcessNodeResult { ContinueWithNextNode, ContinueWithCurrentNode };
void appendBlock(const QTextBlockFormat &format, QTextCharFormat charFmt = QTextCharFormat());
bool appendNodeText();
ProcessNodeResult processBlockNode();
ProcessNodeResult processSpecialNodes();
struct List
{
inline List() : listNode(0) {}
QTextListFormat format;
int listNode;
QPointer<QTextList> list;
};
QVector<List> lists;
int indent;
// insert a named anchor the next time we emit a char format,
// either in a block or in regular text
QStringList namedAnchors;
#ifdef Q_CC_SUN
friend struct QTextHtmlImporter::Table;
#endif
struct TableCellIterator
{
inline TableCellIterator(QTextTable *t = 0) : table(t), row(0), column(0) {}
inline TableCellIterator &operator++() {
if (atEnd())
return *this;
do {
const QTextTableCell cell = table->cellAt(row, column);
if (!cell.isValid())
break;
column += cell.columnSpan();
if (column >= table->columns()) {
column = 0;
++row;
}
} while (row < table->rows() && table->cellAt(row, column).row() != row);
return *this;
}
inline bool atEnd() const { return table == 0 || row >= table->rows(); }
QTextTableCell cell() const { return table->cellAt(row, column); }
QTextTable *table;
int row;
int column;
};
friend struct Table;
struct Table
{
Table() : isTextFrame(false), rows(0), columns(0), currentRow(0), lastIndent(0) {}
QPointer<QTextFrame> frame;
bool isTextFrame;
int rows;
int columns;
int currentRow; // ... for buggy html (see html_skipCell testcase)
TableCellIterator currentCell;
int lastIndent;
};
QVector<Table> tables;
struct RowColSpanInfo
{
int row, col;
int rowSpan, colSpan;
};
enum WhiteSpace
{
RemoveWhiteSpace,
CollapseWhiteSpace,
PreserveWhiteSpace
};
WhiteSpace compressNextWhitespace;
QTextDocument *doc;
QTextCursor cursor;
QTextHtmlParserNode::WhiteSpaceMode wsm;
ImportMode importMode;
bool hasBlock;
bool forceBlockMerging;
bool blockTagClosed;
int currentNodeIdx;
const QTextHtmlParserNode *currentNode;
};
QT_END_NAMESPACE
#endif // QT_NO_TEXTHTMLPARSER
#endif // QTEXTDOCUMENTFRAGMENT_P_H
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