drawinglayer/source/processor2d/linegeometryextractor2d.cxx

   1 /*************************************************************************
   2  *
   3  *  OpenOffice.org - a multi-platform office productivity suite
   4  *
   5  *  $RCSfile: linegeometryextractor2d.cxx,v $
   6  *
   7  *  $Revision: 1.1 $
   8  *
   9  *  last change: $Author: aw $ $Date: 2008-06-24 15:44:27 $
  10  *
  11  *  The Contents of this file are made available subject to
  12  *  the terms of GNU Lesser General Public License Version 2.1.
  13  *
  14  *
  15  *    GNU Lesser General Public License Version 2.1
  16  *    =============================================
  17  *    Copyright 2005 by Sun Microsystems, Inc.
  18  *    901 San Antonio Road, Palo Alto, CA 94303, USA
  19  *
  20  *    This library is free software; you can redistribute it and/or
  21  *    modify it under the terms of the GNU Lesser General Public
  22  *    License version 2.1, as published by the Free Software Foundation.
  23  *
  24  *    This library is distributed in the hope that it will be useful,
  25  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27  *    Lesser General Public License for more details.
  28  *
  29  *    You should have received a copy of the GNU Lesser General Public
  30  *    License along with this library; if not, write to the Free Software
  31  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  32  *    MA  02111-1307  USA
  33  *
  34  ************************************************************************/
  35
  36 // MARKER(update_precomp.py): autogen include statement, do not remove
  37 #include "precompiled_drawinglayer.hxx"
  38
  39 #include <drawinglayer/processor2d/linegeometryextractor2d.hxx>
  40 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  41 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  42 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  43 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  44
  45 //////////////////////////////////////////////////////////////////////////////
  46
  47 using namespace com::sun::star;
  48
  49 //////////////////////////////////////////////////////////////////////////////
  50
  51 namespace drawinglayer
  52 {
  53     namespace processor2d
  54     {
  55         LineGeometryExtractor2D::LineGeometryExtractor2D(const geometry::ViewInformation2D& rViewInformation)
  56         :       BaseProcessor2D(rViewInformation),
  57             maExtractedHairlines(),
  58             maExtractedLineFills(),
  59             mbInLineGeometry(false)
  60         {
  61         }
  62
  63         LineGeometryExtractor2D::~LineGeometryExtractor2D()
  64         {
  65         }
  66
  67         void LineGeometryExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  68         {
  69             switch(rCandidate.getPrimitiveID())
  70             {
  71                 case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
  72                 case PRIMITIVE2D_ID_POLYGONSTROKEARROWPRIMITIVE2D :
  73                 {
  74                     // enter a line geometry group (with or without LineEnds)
  75                     bool bOldState(mbInLineGeometry);
  76                     mbInLineGeometry = true;
  77                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
  78                     mbInLineGeometry = bOldState;
  79                     break;
  80                 }
  81                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  82                 {
  83                     if(mbInLineGeometry)
  84                     {
  85                         // extract hairline line geometry in world coordinates
  86                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  87                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  88                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  89                         maExtractedHairlines.push_back(aLocalPolygon);
  90                     }
  91                     break;
  92                 }
  93                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  94                 {
  95                     if(mbInLineGeometry)
  96                     {
  97                         // extract filled line geometry (line with width)
  98                         const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  99                         basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
 100                         aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
 101                         maExtractedLineFills.push_back(aLocalPolyPolygon);
 102                     }
 103                     break;
 104                 }
 105                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 106                 {
 107                     // remember current transformation and ViewInformation
 108                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 109                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 110
 111                     // create new transformations for CurrentTransformation and for local ViewInformation2D
 112                     const geometry::ViewInformation2D aViewInformation2D(
 113                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
 114                         getViewInformation2D().getViewTransformation(),
 115                         getViewInformation2D().getViewport(),
 116                         getViewInformation2D().getVisualizedPage(),
 117                         getViewInformation2D().getViewTime(),
 118                         getViewInformation2D().getExtendedInformationSequence());
 119                     updateViewInformation(aViewInformation2D);
 120
 121                     // proccess content
 122                     process(rTransformCandidate.getChildren());
 123
 124                     // restore transformations
 125                     updateViewInformation(aLastViewInformation2D);
 126
 127                     break;
 128                 }
 129                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 130                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 131                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 132                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 133                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
 134                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
 135                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 136                 {
 137                     // ignorable primitives
 138                     break;
 139                 }
 140                 default :
 141                 {
 142                     // process recursively
 143                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
 144                     break;
 145                 }
 146             }
 147         }
 148     } // end of namespace processor2d
 149 } // end of namespace drawinglayer
 150
 151 //////////////////////////////////////////////////////////////////////////////
 152 // eof