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 INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
      21             : #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
      22             : 
      23             : #include <drawinglayer/drawinglayerdllapi.h>
      24             : 
      25             : #include <drawinglayer/processor2d/baseprocessor2d.hxx>
      26             : 
      27             : //////////////////////////////////////////////////////////////////////////////
      28             : // predeclarations
      29             : 
      30             : namespace basegfx { class B2DPolygon; }
      31             : namespace basegfx { class B2DPolyPolygon; }
      32             : namespace drawinglayer { namespace primitive2d { class ScenePrimitive2D; }}
      33             : 
      34             : //////////////////////////////////////////////////////////////////////////////
      35             : 
      36             : namespace drawinglayer
      37             : {
      38             :     namespace processor2d
      39             :     {
      40             :         /** HitTestProcessor2D class
      41             : 
      42             :             This processor implements a HitTest with the feeded primitives,
      43             :             given tolerance and extras
      44             :          */
      45             :         class DRAWINGLAYER_DLLPUBLIC HitTestProcessor2D : public BaseProcessor2D
      46             :         {
      47             :         private:
      48             :             /// discrete HitTest position
      49             :             basegfx::B2DPoint           maDiscreteHitPosition;
      50             : 
      51             :             /// discrete HitTolerance
      52             :             double                      mfDiscreteHitTolerance;
      53             : 
      54             :             /// bitfield
      55             :             unsigned                    mbHit : 1;
      56             :             unsigned                    mbHitToleranceUsed : 1;
      57             : 
      58             :             /*  this flag decides if primitives which are embedded to an
      59             :                 UnifiedTransparencePrimitive2D and are invisible will be taken into account for
      60             :                 HitTesting or not. Those primitives are created for objects which are else
      61             :                 completely invisible and normally their content exists of hairline
      62             :                 primitives describing the object's contour
      63             :              */
      64             :             unsigned                    mbUseInvisiblePrimitiveContent : 1;
      65             : 
      66             :             /// flag to concentraze on text hits only
      67             :             unsigned                    mbHitTextOnly : 1;
      68             : 
      69             :             /// tooling methods
      70             :             void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate);
      71             :             bool checkHairlineHitWithTolerance(
      72             :                 const basegfx::B2DPolygon& rPolygon,
      73             :                 double fDiscreteHitTolerance);
      74             :             bool checkFillHitWithTolerance(
      75             :                 const basegfx::B2DPolyPolygon& rPolyPolygon,
      76             :                 double fDiscreteHitTolerance);
      77             :             void check3DHit(const primitive2d::ScenePrimitive2D& rCandidate);
      78             : 
      79             :         public:
      80             :             HitTestProcessor2D(
      81             :                 const geometry::ViewInformation2D& rViewInformation,
      82             :                 const basegfx::B2DPoint& rLogicHitPosition,
      83             :                 double fLogicHitTolerance,
      84             :                 bool bHitTextOnly);
      85             :             virtual ~HitTestProcessor2D();
      86             : 
      87             :             /// data write access
      88             :             void setUseInvisiblePrimitiveContent(bool bNew)
      89             :             {
      90             :                 if((bool)mbUseInvisiblePrimitiveContent != bNew) mbUseInvisiblePrimitiveContent = bNew;
      91             :             }
      92             : 
      93             :             /// data read access
      94           0 :             const basegfx::B2DPoint& getDiscreteHitPosition() const { return maDiscreteHitPosition; }
      95           0 :             double getDiscreteHitTolerance() const { return mfDiscreteHitTolerance; }
      96           0 :             bool getHit() const { return mbHit; }
      97             :             bool getHitToleranceUsed() const { return mbHitToleranceUsed; }
      98           0 :             bool getUseInvisiblePrimitiveContent() const { return mbUseInvisiblePrimitiveContent;}
      99           0 :             bool getHitTextOnly() const { return mbHitTextOnly; }
     100             :         };
     101             :     } // end of namespace processor2d
     102             : } // end of namespace drawinglayer
     103             : 
     104             : //////////////////////////////////////////////////////////////////////////////
     105             : 
     106             : #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
     107             : 
     108             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */