sw/inc/HandleAnchorNodeChg.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
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  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef _HANDLEANCHORNODECHG_HXX
  20 #define _HANDLEANCHORNODECHG_HXX
  21
  22 class SwFlyFrmFmt;
  23 class SwFmtAnchor;
  24 class SwFlyFrm;
  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         @author OD
  39
  40         @param _rFlyFrmFmt
  41         reference to the fly frame format instance, which is handled.
  42
  43         @param _rNewAnchorFmt
  44         new anchor attribute, which will be applied at the given fly frame format
  45
  46         @param _pKeepThisFlyFrm
  47         optional parameter - pointer to a fly frame of the given fly frame format,
  48         which isn't deleted, if re-creation of fly frames is necessary.
  49     */
  50     SwHandleAnchorNodeChg( SwFlyFrmFmt& _rFlyFrmFmt,
  51                            const SwFmtAnchor& _rNewAnchorFmt,
  52                            SwFlyFrm* _pKeepThisFlyFrm = 0L );
  53
  54     /** calls <SwFlyFrmFmt::MakeFrms>, if re-creation of fly frames is necessary.
  55
  56         @author OD
  57     */
  58     ~SwHandleAnchorNodeChg();
  59
  60 private:
  61     // fly frame format, which is tracked for a anchor node change.
  62     SwFlyFrmFmt& mrFlyFrmFmt;
  63     // internal flag, which indicates that the certain anchor node change occurs
  64     // and that re-creation of fly frames is necessary.
  65     bool mbAnchorNodeChanged;
  66
  67     // no copy-constructor
  68     SwHandleAnchorNodeChg( const SwHandleAnchorNodeChg& );
  69     // no assignment-operator
  70     void operator=( const SwHandleAnchorNodeChg );
  71 };
  72 #endif
  73
  74 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */