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41 
42 #ifndef QTEXTCURSOR_P_H
43 #define QTEXTCURSOR_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 for the convenience
50 // of other Qt classes.  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 "qtextcursor.h"
57 #include "qtextdocument.h"
58 #include "qtextdocument_p.h"
59 #include <private/qtextformat_p.h>
60 #include "qtextobject.h"
61 
62 QT_BEGIN_NAMESPACE
63 
64 class QTextCursorPrivate : public QSharedData
65 {
66 public:
67     QTextCursorPrivate(QTextDocumentPrivate *p);
68     QTextCursorPrivate(const QTextCursorPrivate &rhs);
69     ~QTextCursorPrivate();
70 
71     enum AdjustResult { CursorMoved, CursorUnchanged };
72     AdjustResult adjustPosition(int positionOfChange, int charsAddedOrRemoved, QTextUndoCommand::Operation op);
73 
74     void adjustCursor(QTextCursor::MoveOperation m);
75 
76     void remove();
77     void clearCells(QTextTable *table, int startRow, int startCol, int numRows, int numCols, QTextUndoCommand::Operation op);
setPosition(int newPosition)78     inline bool setPosition(int newPosition) {
79         Q_ASSERT(newPosition >= 0 && newPosition < priv->length());
80         bool moved = position != newPosition;
81         if (moved) {
82             position = newPosition;
83             currentCharFormat = -1;
84         }
85         return moved;
86     }
87     void setX();
88     bool canDelete(int pos) const;
89 
90     void insertBlock(const QTextBlockFormat &format, const QTextCharFormat &charFormat);
91     bool movePosition(QTextCursor::MoveOperation op, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);
92 
block()93     inline QTextBlock block() const
94         { return QTextBlock(priv, priv->blockMap().findNode(position)); }
blockFormat()95     inline QTextBlockFormat blockFormat() const
96         { return block().blockFormat(); }
97 
98     QTextLayout *blockLayout(QTextBlock &block) const;
99 
100     QTextTable *complexSelectionTable() const;
101     void selectedTableCells(int *firstRow, int *numRows, int *firstColumn, int *numColumns) const;
102 
103     void setBlockCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
104     void setBlockFormat(const QTextBlockFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
105     void setCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
106 
107     void aboutToRemoveCell(int from, int to);
108 
109     QTextDocumentPrivate *priv;
110     qreal x;
111     int position;
112     int anchor;
113     int adjusted_anchor;
114     int currentCharFormat;
115     uint visualNavigation : 1;
116     uint keepPositionOnInsert : 1;
117     uint changed : 1;
118 };
119 
120 QT_END_NAMESPACE
121 
122 #endif // QTEXTCURSOR_P_H
123