include/svx/textchainflow.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  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
  20 #ifndef INCLUDED_SVX_TEXTCHAINFLOW_HXX
  21 #define INCLUDED_SVX_TEXTCHAINFLOW_HXX
  22
  23 #include <svx/textchain.hxx>
  24
  25 class SdrTextObj;
  26 class SdrOutliner;
  27 class NonOverflowingText;
  28 class OverflowingText;
  29 class TextChain;
  30 class OutlinerParaObject;
  31 class OFlowChainedText;
  32 class UFlowChainedText;
  33
  34 class TextChainFlow
  35 {
  36 public:
  37     TextChainFlow(SdrTextObj *pChainTarget);
  38     virtual ~TextChainFlow();
  39
  40     // Check for flow events in Outliner
  41     virtual void CheckForFlowEvents(SdrOutliner *);
  42
  43     void ExecuteUnderflow(SdrOutliner *);
  44
  45     // Uses two outliners: one for the non-overflow text and one for overflowing (might be the same)
  46     void ExecuteOverflow(SdrOutliner *, SdrOutliner *);
  47
  48     bool IsOverflow() const;
  49     bool IsUnderflow() const;
  50
  51     SdrTextObj *GetLinkTarget() const;
  52
  53 protected:
  54     // Cursor related
  55     bool mbPossiblyCursorOut;
  56     ESelection maOverflowPosSel;
  57     ESelection maPostChainingSel;
  58
  59     OFlowChainedText *mpOverflChText;
  60     UFlowChainedText *mpUnderflChText;
  61
  62     void impCheckForFlowEvents(SdrOutliner *, SdrOutliner *);
  63
  64     TextChain *GetTextChain() const;
  65
  66     virtual void impLeaveOnlyNonOverflowingText(SdrOutliner *);
  67     void impMoveChainedTextToNextLink(SdrOutliner *);
  68
  69     virtual void impSetFlowOutlinerParams(SdrOutliner *, SdrOutliner *);
  70
  71 private:
  72     bool mbOFisUFinduced;
  73
  74     void impUpdateCursorInfo();
  75
  76     SdrTextObj *mpTargetLink;
  77     SdrTextObj *mpNextLink;
  78
  79     TextChain *mpTextChain;
  80
  81     bool bUnderflow;
  82     bool bOverflow;
  83 };
  84
  85
  86 // NOTE: EditingTextChainFlow might be strongly coupled with behavior in SdrTextObj::onChainingEvent
  87 class EditingTextChainFlow : public TextChainFlow
  88 {
  89 public:
  90     EditingTextChainFlow(SdrTextObj *);
  91     virtual void CheckForFlowEvents(SdrOutliner *) override;
  92
  93     //virtual void ExecuteOverflow(SdrOutliner *, SdrOutliner *) override;
  94
  95 protected:
  96     virtual void impLeaveOnlyNonOverflowingText(SdrOutliner *) override;
  97
  98     virtual void impSetFlowOutlinerParams(SdrOutliner *, SdrOutliner *) override;
  99
 100 private:
 101     void impBroadcastCursorInfo() const;
 102 };
 103
 104 #endif // INCLUDED_SVX_TEXTCHAINFLOW_HXX
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */