Line data    Source code

       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             : 
      20             : #ifndef _SV_REGION_H
      21             : #define _SV_REGION_H
      22             : 
      23             : #include <vcl/regband.hxx>
      24             : #include <tools/poly.hxx>
      25             : #include <vcl/region.hxx>
      26             : 
      27             : // -----------------
      28             : // - Hilfsmethoden -
      29             : // -----------------
      30             : 
      31             : #ifdef DBG_UTIL
      32             : const char* ImplDbgTestRegion( const void* pObj );
      33             : #endif
      34             : 
      35             : // --------------------
      36             : // - ImplRegionHandle -
      37             : // --------------------
      38             : 
      39             : struct ImplRegionHandle
      40             : {
      41             :     Region*             mpRegion;
      42             :     ImplRegionBand*     mpCurrRectBand;
      43             :     ImplRegionBandSep*  mpCurrRectBandSep;
      44             :     sal_Bool                mbFirst;
      45             : };
      46             : 
      47             : // ------------------
      48             : // - ImplRegionInfo -
      49             : // ------------------
      50             : 
      51             : struct ImplRegionInfo
      52             : {
      53             :     void*               mpVoidCurrRectBand;
      54             :     void*               mpVoidCurrRectBandSep;
      55             : };
      56             : 
      57             : // --------------
      58             : // - ImplRegion -
      59             : // --------------
      60             : 
      61             : struct ImplRegionBase
      62             : {
      63             : public:
      64             :     ImplRegionBase( int nCount = 1 ); // TODO: replace manual refcounting
      65             :     virtual ~ImplRegionBase();
      66             : public:
      67             :     sal_uIntPtr             mnRefCount;
      68             :     sal_uIntPtr             mnRectCount;
      69             :     PolyPolygon*        mpPolyPoly;
      70             :     basegfx::B2DPolyPolygon* mpB2DPolyPoly;
      71             : };
      72             : 
      73             : class ImplRegion : public ImplRegionBase
      74             : {
      75             :     friend class Region;
      76             : 
      77             : private:
      78             :     ImplRegionBand*     mpFirstBand;        // root of the list with y-bands
      79             :     ImplRegionBand*     mpLastCheckedBand;
      80             : 
      81             : public:
      82             :                         ImplRegion();
      83             :                         ImplRegion( const PolyPolygon& rPolyPoly );
      84             :                         ImplRegion( const basegfx::B2DPolyPolygon& );
      85             :                         ImplRegion( const ImplRegion& rImplRegion );
      86             :                         ~ImplRegion();
      87             : 
      88           0 :     ImplRegionBand*     ImplGetFirstRegionBand() const { return mpFirstBand; }
      89             :     PolyPolygon*        ImplGetPolyPoly() const { return mpPolyPoly; }
      90             : 
      91             :     void                CreateBandRange( long nYTop, long nYBottom );
      92             :     void                InsertBands( long nYTop, long nYBottom );
      93             :     sal_Bool                InsertSingleBand( ImplRegionBand* mpImplRegionBand,
      94             :                                           long nYBandPosition );
      95             :     sal_Bool                InsertLine( const Point & rFirstPoint,
      96             :                                     const Point & rSecondPoint,
      97             :                                     long nLineID );
      98             :     sal_Bool                InsertPoint( const Point &rPoint,
      99             :                                      long nLineID,
     100             :                                      sal_Bool bEndPoint, LineType eLineType );
     101             : 
     102             :     /** Insert one band either after another band or as the first or only
     103             :         band.  Both the forward as well as the backward links are updated.
     104             :         @param pPreviousBand
     105             :             When <NULL/> then pBandToInsert is inserted as first band or as
     106             :             only band when there are no other bands.
     107             :             When not <NULL/> then pBandToInsert is inserted directly after
     108             :             pPreviousBand.
     109             :         @param pBandToInsert
     110             :             The band to insert.
     111             :     */
     112             :     void                InsertBand (ImplRegionBand* pPreviousBand,
     113             :                                     ImplRegionBand* pBandToInsert);
     114             : 
     115             :     void                Union( long nLeft, long nTop, long nRight, long nBottom );
     116             :     void                Exclude( long nLeft, long nTop, long nRight, long nBottom );
     117             :     void                XOr( long nLeft, long nTop, long nRight, long nBottom );
     118             : 
     119             :                         // remove emtpy rects
     120             :     sal_Bool                OptimizeBandList();
     121             : 
     122             :     friend SvStream&    operator>>( SvStream& rIStm, Region& rRegion );
     123             :     friend SvStream&    operator<<( SvStream& rOStm, const Region& rRegion );
     124             : };
     125             : 
     126             : #endif  // _SV_REGION_H
     127             : 
     128             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */