drawinglayer/source/primitive2d/baseprimitive2d.cxx

   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 #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
  21 #include <drawinglayer/geometry/viewinformation2d.hxx>
  22 #include <basegfx/tools/canvastools.hxx>
  23
  24 //////////////////////////////////////////////////////////////////////////////
  25
  26 using namespace com::sun::star;
  27
  28 //////////////////////////////////////////////////////////////////////////////
  29
  30 namespace drawinglayer
  31 {
  32     namespace primitive2d
  33     {
  34         BasePrimitive2D::BasePrimitive2D()
  35         :   BasePrimitive2DImplBase(m_aMutex)
  36         {
  37         }
  38
  39         BasePrimitive2D::~BasePrimitive2D()
  40         {
  41         }
  42
  43         bool BasePrimitive2D::operator==( const BasePrimitive2D& rPrimitive ) const
  44         {
  45             return (getPrimitive2DID() == rPrimitive.getPrimitive2DID());
  46         }
  47
  48         basegfx::B2DRange BasePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
  49         {
  50             return getB2DRangeFromPrimitive2DSequence(get2DDecomposition(rViewInformation), rViewInformation);
  51         }
  52
  53         Primitive2DSequence BasePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
  54         {
  55             return Primitive2DSequence();
  56         }
  57
  58         Primitive2DSequence SAL_CALL BasePrimitive2D::getDecomposition( const uno::Sequence< beans::PropertyValue >& rViewParameters ) throw ( uno::RuntimeException )
  59         {
  60             const geometry::ViewInformation2D aViewInformation(rViewParameters);
  61             return get2DDecomposition(aViewInformation);
  62         }
  63
  64         com::sun::star::geometry::RealRectangle2D SAL_CALL BasePrimitive2D::getRange( const uno::Sequence< beans::PropertyValue >& rViewParameters ) throw ( uno::RuntimeException )
  65         {
  66             const geometry::ViewInformation2D aViewInformation(rViewParameters);
  67             return basegfx::unotools::rectangle2DFromB2DRectangle(getB2DRange(aViewInformation));
  68         }
  69     } // end of namespace primitive2d
  70 } // end of namespace drawinglayer
  71
  72 //////////////////////////////////////////////////////////////////////////////
  73
  74 namespace drawinglayer
  75 {
  76     namespace primitive2d
  77     {
  78         Primitive2DSequence BufferedDecompositionPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
  79         {
  80             return Primitive2DSequence();
  81         }
  82
  83         BufferedDecompositionPrimitive2D::BufferedDecompositionPrimitive2D()
  84         :   BasePrimitive2D(),
  85             maBuffered2DDecomposition()
  86         {
  87         }
  88
  89         Primitive2DSequence BufferedDecompositionPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
  90         {
  91             ::osl::MutexGuard aGuard( m_aMutex );
  92
  93             if(!getBuffered2DDecomposition().hasElements())
  94             {
  95                 const Primitive2DSequence aNewSequence(create2DDecomposition(rViewInformation));
  96                 const_cast< BufferedDecompositionPrimitive2D* >(this)->setBuffered2DDecomposition(aNewSequence);
  97             }
  98
  99             return getBuffered2DDecomposition();
 100         }
 101     } // end of namespace primitive2d
 102 } // end of namespace drawinglayer
 103
 104 //////////////////////////////////////////////////////////////////////////////
 105 // tooling
 106
 107 namespace drawinglayer
 108 {
 109     namespace primitive2d
 110     {
 111         // convert helper stl vector of primitives to Primitive2DSequence
 112         Primitive2DSequence Primitive2DVectorToPrimitive2DSequence(const Primitive2DVector& rSource, bool bInvert)
 113         {
 114             const sal_uInt32 nSize(rSource.size());
 115             Primitive2DSequence aRetval;
 116
 117             aRetval.realloc(nSize);
 118
 119             for(sal_uInt32 a(0); a < nSize; a++)
 120             {
 121                 aRetval[bInvert ? nSize - 1 - a : a] = rSource[a];
 122             }
 123
 124             // all entries taken over to Uno References as owners. To avoid
 125             // errors with users of this mechanism to delete pointers to BasePrimitive2D
 126             // itself, clear given vector
 127             const_cast< Primitive2DVector& >(rSource).clear();
 128
 129             return aRetval;
 130         }
 131
 132         // get B2DRange from a given Primitive2DReference
 133         basegfx::B2DRange getB2DRangeFromPrimitive2DReference(const Primitive2DReference& rCandidate, const geometry::ViewInformation2D& aViewInformation)
 134         {
 135             basegfx::B2DRange aRetval;
 136
 137             if(rCandidate.is())
 138             {
 139                 // try to get C++ implementation base
 140                 const BasePrimitive2D* pCandidate(dynamic_cast< BasePrimitive2D* >(rCandidate.get()));
 141
 142                 if(pCandidate)
 143                 {
 144                     // use it if possible
 145                     aRetval.expand(pCandidate->getB2DRange(aViewInformation));
 146                 }
 147                 else
 148                 {
 149                     // use UNO API call instead
 150                     const uno::Sequence< beans::PropertyValue >& rViewParameters(aViewInformation.getViewInformationSequence());
 151                     aRetval.expand(basegfx::unotools::b2DRectangleFromRealRectangle2D(rCandidate->getRange(rViewParameters)));
 152                 }
 153             }
 154
 155             return aRetval;
 156         }
 157
 158         // get B2DRange from a given Primitive2DSequence
 159         basegfx::B2DRange getB2DRangeFromPrimitive2DSequence(const Primitive2DSequence& rCandidate, const geometry::ViewInformation2D& aViewInformation)
 160         {
 161             basegfx::B2DRange aRetval;
 162
 163             if(rCandidate.hasElements())
 164             {
 165                 const sal_Int32 nCount(rCandidate.getLength());
 166
 167                 for(sal_Int32 a(0L); a < nCount; a++)
 168                 {
 169                     aRetval.expand(getB2DRangeFromPrimitive2DReference(rCandidate[a], aViewInformation));
 170                 }
 171             }
 172
 173             return aRetval;
 174         }
 175
 176         bool arePrimitive2DReferencesEqual(const Primitive2DReference& rxA, const Primitive2DReference& rxB)
 177         {
 178             const sal_Bool bAIs(rxA.is());
 179
 180             if(bAIs != rxB.is())
 181             {
 182                 return false;
 183             }
 184
 185             if(!bAIs)
 186             {
 187                 return true;
 188             }
 189
 190             const BasePrimitive2D* pA(dynamic_cast< const BasePrimitive2D* >(rxA.get()));
 191             const BasePrimitive2D* pB(dynamic_cast< const BasePrimitive2D* >(rxB.get()));
 192             const bool bAEqualZero(pA == 0L);
 193
 194             if(bAEqualZero != (pB == 0L))
 195             {
 196                 return false;
 197             }
 198
 199             if(bAEqualZero)
 200             {
 201                 return false;
 202             }
 203
 204             return (pA->operator==(*pB));
 205         }
 206
 207         bool arePrimitive2DSequencesEqual(const Primitive2DSequence& rA, const Primitive2DSequence& rB)
 208         {
 209             const sal_Bool bAHasElements(rA.hasElements());
 210
 211             if(bAHasElements != rB.hasElements())
 212             {
 213                 return false;
 214             }
 215
 216             if(!bAHasElements)
 217             {
 218                 return true;
 219             }
 220
 221             const sal_Int32 nCount(rA.getLength());
 222
 223             if(nCount != rB.getLength())
 224             {
 225                 return false;
 226             }
 227
 228             for(sal_Int32 a(0L); a < nCount; a++)
 229             {
 230                 if(!arePrimitive2DReferencesEqual(rA[a], rB[a]))
 231                 {
 232                     return false;
 233                 }
 234             }
 235
 236             return true;
 237         }
 238
 239         // concatenate sequence
 240         void appendPrimitive2DSequenceToPrimitive2DSequence(Primitive2DSequence& rDest, const Primitive2DSequence& rSource)
 241         {
 242             if(rSource.hasElements())
 243             {
 244                 if(rDest.hasElements())
 245                 {
 246                     const sal_Int32 nSourceCount(rSource.getLength());
 247                     const sal_Int32 nDestCount(rDest.getLength());
 248                     const sal_Int32 nTargetCount(nSourceCount + nDestCount);
 249                     sal_Int32 nInsertPos(nDestCount);
 250
 251                     rDest.realloc(nTargetCount);
 252
 253                     for(sal_Int32 a(0L); a < nSourceCount; a++)
 254                     {
 255                         if(rSource[a].is())
 256                         {
 257                             rDest[nInsertPos++] = rSource[a];
 258                         }
 259                     }
 260
 261                     if(nInsertPos != nTargetCount)
 262                     {
 263                         rDest.realloc(nInsertPos);
 264                     }
 265                 }
 266                 else
 267                 {
 268                     rDest = rSource;
 269                 }
 270             }
 271         }
 272
 273         // concatenate single Primitive2D
 274         void appendPrimitive2DReferenceToPrimitive2DSequence(Primitive2DSequence& rDest, const Primitive2DReference& rSource)
 275         {
 276             if(rSource.is())
 277             {
 278                 const sal_Int32 nDestCount(rDest.getLength());
 279                 rDest.realloc(nDestCount + 1L);
 280                 rDest[nDestCount] = rSource;
 281             }
 282         }
 283
 284     } // end of namespace primitive2d
 285 } // end of namespace drawinglayer
 286
 287 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */