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39 
40 #ifndef QTEXTCURSOR_P_H
41 #define QTEXTCURSOR_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists for the convenience
48 // of other Qt classes.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtGui/private/qtguiglobal_p.h>
55 #include "qtextcursor.h"
56 #include "qtextdocument.h"
57 #include "qtextdocument_p.h"
58 #include <private/qtextformat_p.h>
59 #include "qtextobject.h"
60 
61 QT_BEGIN_NAMESPACE
62 
63 class Q_GUI_EXPORT QTextCursorPrivate : public QSharedData
64 {
65 public:
66     QTextCursorPrivate(QTextDocumentPrivate *p);
67     QTextCursorPrivate(const QTextCursorPrivate &rhs);
68     ~QTextCursorPrivate();
69 
getPrivate(QTextCursor * c)70     static inline QTextCursorPrivate *getPrivate(QTextCursor *c) { return c->d; }
71 
72     enum AdjustResult { CursorMoved, CursorUnchanged };
73     AdjustResult adjustPosition(int positionOfChange, int charsAddedOrRemoved, QTextUndoCommand::Operation op);
74 
75     void adjustCursor(QTextCursor::MoveOperation m);
76 
77     void remove();
78     void clearCells(QTextTable *table, int startRow, int startCol, int numRows, int numCols, QTextUndoCommand::Operation op);
setPosition(int newPosition)79     inline bool setPosition(int newPosition) {
80         Q_ASSERT(newPosition >= 0 && newPosition < priv->length());
81         bool moved = position != newPosition;
82         if (moved) {
83             position = newPosition;
84             currentCharFormat = -1;
85         }
86         return moved;
87     }
88     void setX();
89     bool canDelete(int pos) const;
90 
91     void insertBlock(const QTextBlockFormat &format, const QTextCharFormat &charFormat);
92     bool movePosition(QTextCursor::MoveOperation op, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);
93 
block()94     inline QTextBlock block() const
95         { return QTextBlock(priv, priv->blockMap().findNode(position)); }
blockFormat()96     inline QTextBlockFormat blockFormat() const
97         { return block().blockFormat(); }
98 
99     QTextLayout *blockLayout(QTextBlock &block) const;
100 
101     QTextTable *complexSelectionTable() const;
102     void selectedTableCells(int *firstRow, int *numRows, int *firstColumn, int *numColumns) const;
103 
104     void setBlockCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
105     void setBlockFormat(const QTextBlockFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
106     void setCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
107 
108     void aboutToRemoveCell(int from, int to);
109 
fromPosition(QTextDocumentPrivate * d,int pos)110     static QTextCursor fromPosition(QTextDocumentPrivate *d, int pos)
111     { return QTextCursor(d, pos); }
112 
113     QTextDocumentPrivate *priv;
114     qreal x;
115     int position;
116     int anchor;
117     int adjusted_anchor;
118     int currentCharFormat;
119     uint visualNavigation : 1;
120     uint keepPositionOnInsert : 1;
121     uint changed : 1;
122 };
123 
124 QT_END_NAMESPACE
125 
126 #endif // QTEXTCURSOR_P_H
127