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    41 

    42 #ifndef QTEXTDOCUMENTFRAGMENT_P_H

    43 #define QTEXTDOCUMENTFRAGMENT_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "QtGui/qtextdocument.h"

    57 #include "private/qtexthtmlparser_p.h"

    58 #include "private/qtextdocument_p.h"

    59 #include "QtGui/qtexttable.h"

    60 #include "QtCore/qatomic.h"

    61 #include "QtCore/qlist.h"

    62 #include "QtCore/qmap.h"

    63 #include "QtCore/qpointer.h"

    64 #include "QtCore/qvarlengtharray.h"

    65 #include "QtCore/qdatastream.h"

    66 

    67 QT_BEGIN_NAMESPACE

    68 

    69 class QTextDocumentFragmentPrivate;

    70 

    71 class QTextCopyHelper

    72 {

    73 public:

    74     QTextCopyHelper(const QTextCursor &_source, const QTextCursor &_destination, bool forceCharFormat = false, const QTextCharFormat &fmt = QTextCharFormat());

    75 

    76     void copy();

    77 

    78 private:

    79     void appendFragments(int pos, int endPos);

    80     int appendFragment(int pos, int endPos, int objectIndex = -1);

    81     int convertFormatIndex(const QTextFormat &oldFormat, int objectIndexToSet = -1);

    82     inline int convertFormatIndex(int oldFormatIndex, int objectIndexToSet = -1)

    83     { return convertFormatIndex(src->formatCollection()->format(oldFormatIndex), objectIndexToSet); }

    84     inline QTextFormat convertFormat(const QTextFormat &fmt)

    85     { return dst->formatCollection()->format(convertFormatIndex(fmt)); }

    86 

    87     int insertPos;

    88 

    89     bool forceCharFormat;

    90     int primaryCharFormatIndex;

    91 

    92     QTextCursor cursor;

    93     QTextDocumentPrivate *dst;

    94     QTextDocumentPrivate *src;

    95     QTextFormatCollection &formatCollection;

    96     const QString originalText;

    97     QMap<int, int> objectIndexMap;

    98 };

    99 

   100 class QTextDocumentFragmentPrivate

   101 {

   102 public:

   103     QTextDocumentFragmentPrivate(const QTextCursor &cursor = QTextCursor());

   104     inline ~QTextDocumentFragmentPrivate() { delete doc; }

   105 

   106     void insert(QTextCursor &cursor) const;

   107 

   108     QAtomicInt ref;

   109     QTextDocument *doc;

   110 

   111     uint importedFromPlainText : 1;

   112 private:

   113     Q_DISABLE_COPY(QTextDocumentFragmentPrivate)

   114 };

   115 

   116 #ifndef QT_NO_TEXTHTMLPARSER

   117 

   118 class QTextHtmlImporter : public QTextHtmlParser

   119 {

   120     struct Table;

   121 public:

   122     enum ImportMode {

   123         ImportToFragment,

   124         ImportToDocument

   125     };

   126 

   127     QTextHtmlImporter(QTextDocument *_doc, const QString &html,

   128                       ImportMode mode,

   129                       const QTextDocument *resourceProvider = 0);

   130 

   131     void import();

   132 

   133 private:

   134     bool closeTag();

   135 

   136     Table scanTable(int tableNodeIdx);

   137 

   138     enum ProcessNodeResult { ContinueWithNextNode, ContinueWithCurrentNode };

   139 

   140     void appendBlock(const QTextBlockFormat &format, QTextCharFormat charFmt = QTextCharFormat());

   141     bool appendNodeText();

   142 

   143     ProcessNodeResult processBlockNode();

   144     ProcessNodeResult processSpecialNodes();

   145 

   146     struct List

   147     {

   148         inline List() : listNode(0) {}

   149         QTextListFormat format;

   150         int listNode;

   151         QPointer<QTextList> list;

   152     };

   153     QVector<List> lists;

   154     int indent;

   155 

   156     // insert a named anchor the next time we emit a char format,

   157     // either in a block or in regular text

   158     QStringList namedAnchors;

   159 

   160 #ifdef Q_CC_SUN

   161     friend struct QTextHtmlImporter::Table;

   162 #endif

   163     struct TableCellIterator

   164     {

   165         inline TableCellIterator(QTextTable *t = 0) : table(t), row(0), column(0) {}

   166 

   167         inline TableCellIterator &operator++() {

   168             if (atEnd())

   169                 return *this;

   170             do {

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

   172                 if (!cell.isValid())

   173                     break;

   174                 column += cell.columnSpan();

   175                 if (column >= table->columns()) {

   176                     column = 0;

   177                     ++row;

   178                 }

   179             } while (row < table->rows() && table->cellAt(row, column).row() != row);

   180 

   181             return *this;

   182         }

   183 

   184         inline bool atEnd() const { return table == 0 || row >= table->rows(); }

   185 

   186         QTextTableCell cell() const { return table->cellAt(row, column); }

   187 

   188         QTextTable *table;

   189         int row;

   190         int column;

   191     };

   192 

   193     friend struct Table;

   194     struct Table

   195     {

   196         Table() : isTextFrame(false), rows(0), columns(0), currentRow(0), lastIndent(0) {}

   197         QPointer<QTextFrame> frame;

   198         bool isTextFrame;

   199         int rows;

   200         int columns;

   201         int currentRow; // ... for buggy html (see html_skipCell testcase)

   202         TableCellIterator currentCell;

   203         int lastIndent;

   204     };

   205     QVector<Table> tables;

   206 

   207     struct RowColSpanInfo

   208     {

   209         int row, col;

   210         int rowSpan, colSpan;

   211     };

   212 

   213     enum WhiteSpace

   214     {

   215         RemoveWhiteSpace,

   216         CollapseWhiteSpace,

   217         PreserveWhiteSpace

   218     };

   219 

   220     WhiteSpace compressNextWhitespace;

   221 

   222     QTextDocument *doc;

   223     QTextCursor cursor;

   224     QTextHtmlParserNode::WhiteSpaceMode wsm;

   225     ImportMode importMode;

   226     bool hasBlock;

   227     bool forceBlockMerging;

   228     bool blockTagClosed;

   229     int currentNodeIdx;

   230     const QTextHtmlParserNode *currentNode;

   231 };

   232 

   233 QT_END_NAMESPACE

   234 #endif // QT_NO_TEXTHTMLPARSER

   235 

   236 #endif // QTEXTDOCUMENTFRAGMENT_P_H