sw/source/core/text/pordrop.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.
   4  *
   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 #pragma once
  20
  21 #include "portxt.hxx"
  22 #include <swfont.hxx>
  23
  24 #include <memory>
  25
  26 class SwFont;
  27
  28 // DropCap cache, global variable initialized/destroyed in txtinit.cxx
  29 // and used in txtdrop.cxx for initial calculation
  30
  31 class SwDropCapCache;
  32 extern SwDropCapCache *pDropCapCache;
  33
  34 // A drop portion can consist of one or more parts in order to allow
  35 // attribute changes inside them.
  36 class SwDropPortionPart
  37 {
  38     std::unique_ptr<SwDropPortionPart> m_pFollow;
  39     std::unique_ptr<SwFont> m_pFnt;
  40     TextFrameIndex m_nLen;
  41     SwTwips m_nWidth;
  42     bool m_bJoinBorderWithNext;
  43     bool m_bJoinBorderWithPrev;
  44
  45 public:
  46     SwDropPortionPart( SwFont& rFont, const TextFrameIndex nL )
  47             : m_pFnt( &rFont ), m_nLen( nL ), m_nWidth( 0 ), m_bJoinBorderWithNext(false), m_bJoinBorderWithPrev(false) {};
  48     ~SwDropPortionPart();
  49
  50     SwDropPortionPart* GetFollow() const { return m_pFollow.get(); };
  51     void SetFollow( std::unique_ptr<SwDropPortionPart> pNew ) { m_pFollow = std::move(pNew); };
  52     SwFont& GetFont() const { return *m_pFnt; }
  53     TextFrameIndex GetLen() const { return m_nLen; }
  54     SwTwips GetWidth() const { return m_nWidth; }
  55     void SetWidth(SwTwips nNew) { m_nWidth = nNew; }
  56
  57     bool GetJoinBorderWithPrev() const { return m_bJoinBorderWithPrev; }
  58     bool GetJoinBorderWithNext() const { return m_bJoinBorderWithNext; }
  59     void SetJoinBorderWithPrev( const bool bJoinPrev ) { m_bJoinBorderWithPrev = bJoinPrev; }
  60     void SetJoinBorderWithNext( const bool bJoinNext ) { m_bJoinBorderWithNext = bJoinNext; }
  61 };
  62
  63 /// Text portion for the Format -> Paragraph -> Drop Caps functionality.
  64 class SwDropPortion : public SwTextPortion
  65 {
  66     friend class SwDropCapCache;
  67     std::unique_ptr<SwDropPortionPart> m_pPart; // due to script/attribute changes
  68     sal_uInt16 m_nLines;          // Line count
  69     SwTwips m_nDropHeight;     // Height
  70     SwTwips m_nDropDescent;    // Distance to the next line
  71     SwTwips m_nDistance;       // Distance to the text
  72     SwTwips m_nFix;            // Fixed position
  73     SwTwips m_nY; // Y Offset
  74
  75     bool FormatText( SwTextFormatInfo &rInf );
  76     void PaintText( const SwTextPaintInfo &rInf ) const;
  77
  78 public:
  79     SwDropPortion( const sal_uInt16 nLineCnt,
  80                    const SwTwips nDropHeight,
  81                    const SwTwips nDropDescent,
  82                    const SwTwips nDistance );
  83     virtual ~SwDropPortion() override;
  84
  85     virtual void Paint( const SwTextPaintInfo &rInf ) const override;
  86             void PaintDrop( const SwTextPaintInfo &rInf ) const;
  87     virtual bool Format( SwTextFormatInfo &rInf ) override;
  88     virtual SwPosSize GetTextSize( const SwTextSizeInfo &rInfo ) const override;
  89     virtual TextFrameIndex GetModelPositionForViewPoint(SwTwips nOfst) const override;
  90
  91     sal_uInt16 GetLines() const { return m_nLines; }
  92     SwTwips GetDistance() const { return m_nDistance; }
  93     SwTwips GetDropHeight() const { return m_nDropHeight; }
  94     SwTwips GetDropDescent() const { return m_nDropDescent; }
  95     SwTwips GetDropLeft() const { return Width() + m_nFix; }
  96
  97     SwDropPortionPart* GetPart() const { return m_pPart.get(); }
  98     void SetPart( std::unique_ptr<SwDropPortionPart> pNew ) { m_pPart = std::move(pNew); }
  99
 100     void SetY( short nNew )  { m_nY = nNew; }
 101
 102     SwFont* GetFnt() const { return m_pPart ? &m_pPart->GetFont() : nullptr; }
 103
 104     static void DeleteDropCapCache();
 105 };
 106
 107 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */