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19 #ifndef INCLUDED_SW_INC_HANDLEANCHORNODECHG_HXX
20 #define INCLUDED_SW_INC_HANDLEANCHORNODECHG_HXX
21 
22 class SwFlyFrameFormat;
23 class SwFormatAnchor;
24 class SwFlyFrame;
25 
26 // helper class to track change of anchor node of at-paragraph respectively
27 // at-character anchored fly frames
28 // if such a change happens, it has to be checked, if the count of the anchor
29 // frames also change. if yes, a re-creation of the fly frames is needed:
30 // - deletion of existing fly frames before the intrinsic anchor node changes
31 // - creation of new fly frames after the intrinsic anchor node change.
32 class SwHandleAnchorNodeChg
33 {
34 public:
35     /** checks, if re-creation of fly frames for an anchor node change at the
36         given fly frame format is necessary, and performs the first part.
37 
38         @param _rFlyFrameFormat
39         reference to the fly frame format instance, which is handled.
40 
41         @param _rNewAnchorFormat
42         new anchor attribute, which will be applied at the given fly frame format
43 
44         @param _pKeepThisFlyFrame
45         optional parameter - pointer to a fly frame of the given fly frame format,
46         which isn't deleted, if re-creation of fly frames is necessary.
47     */
48     SwHandleAnchorNodeChg( SwFlyFrameFormat& _rFlyFrameFormat,
49                            const SwFormatAnchor& _rNewAnchorFormat,
50                            SwFlyFrame const * _pKeepThisFlyFrame = nullptr );
51 
52     /** calls <SwFlyFrameFormat::MakeFrames>, if re-creation of fly frames is necessary. */
53     ~SwHandleAnchorNodeChg() COVERITY_NOEXCEPT_FALSE;
54 
55 private:
56     // fly frame format, which is tracked for an anchor node change.
57     SwFlyFrameFormat& mrFlyFrameFormat;
58     // internal flag, which indicates that the certain anchor node change occurs
59     // and that re-creation of fly frames is necessary.
60     bool mbAnchorNodeChanged;
61 
62     /// If the fly frame has a comment, this points to the old comment anchor.
63     std::unique_ptr<SwPosition> mpCommentAnchor;
64 
65     SwWrtShell* mpWrtShell;
66 
67     SwHandleAnchorNodeChg( const SwHandleAnchorNodeChg& ) = delete;
68     void operator=( const SwHandleAnchorNodeChg ) = delete;
69 };
70 #endif
71 
72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
73