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Diffstat (limited to 'src/gui/text/qtextdocumentfragment_p.h')
-rw-r--r-- | src/gui/text/qtextdocumentfragment_p.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/gui/text/qtextdocumentfragment_p.h b/src/gui/text/qtextdocumentfragment_p.h new file mode 100644 index 0000000..743ed9d --- /dev/null +++ b/src/gui/text/qtextdocumentfragment_p.h @@ -0,0 +1,236 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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 |