LCOV - code coverage report
Current view: top level - cppcanvas/source/inc - implrenderer.hxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 39 0.0 %
Date: 2014-04-14 Functions: 0 18 0.0 %
Legend: Lines: hit not hit

          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 _CPPCANVAS_IMPLRENDERER_HXX
      21             : #define _CPPCANVAS_IMPLRENDERER_HXX
      22             : 
      23             : #include <sal/types.h>
      24             : 
      25             : #include <boost/shared_ptr.hpp>
      26             : #include <cppcanvas/renderer.hxx>
      27             : #include <cppcanvas/canvas.hxx>
      28             : 
      29             : #include <canvasgraphichelper.hxx>
      30             : #include <action.hxx>
      31             : #include <outdevstate.hxx>
      32             : 
      33             : #include <vector>
      34             : #include <map>
      35             : 
      36             : class GDIMetaFile;
      37             : class VirtualDevice;
      38             : class Gradient;
      39             : class Rectangle;
      40             : class Font;
      41             : class PolyPolygon;
      42             : class Point;
      43             : class MetaCommentAction;
      44             : 
      45             : namespace basegfx {
      46             :     class B2DPolyPolygon;
      47             :     class B2DPolygon;
      48             : }
      49             : 
      50             : namespace cppcanvas
      51             : {
      52             : 
      53             :     namespace internal
      54             :     {
      55             :         struct OutDevState;
      56             :         struct ActionFactoryParameters;
      57             :         struct XForm;
      58             : 
      59           0 :         struct EMFPObject
      60             :         {
      61           0 :             virtual ~EMFPObject() {}
      62             :         };
      63             : 
      64             :         // state stack of OutputDevice, to correctly handle
      65             :         // push/pop actions
      66           0 :         class VectorOfOutDevStates
      67             :         {
      68             :         public:
      69             :             OutDevState& getState();
      70             :             const OutDevState& getState() const;
      71             :             void pushState(sal_uInt16 nFlags);
      72             :             void popState();
      73             :             void clearStateStack();
      74             :         private:
      75             :             ::std::vector< OutDevState > m_aStates;
      76             :         };
      77             : 
      78             :         // EMF+
      79             :         // TODO: replace?
      80             :         struct XForm
      81             :         {
      82             :             float   eM11;
      83             :             float   eM12;
      84             :             float   eM21;
      85             :             float   eM22;
      86             :             float   eDx;
      87             :             float   eDy;
      88           0 :             XForm()
      89             :             {
      90           0 :                 SetIdentity ();
      91           0 :             };
      92             : 
      93           0 :             void SetIdentity ()
      94             :             {
      95           0 :                 eM11 =  eM22 = 1.0f;
      96           0 :                 eDx = eDy = eM12 = eM21 = 0.0f;
      97           0 :             }
      98             : 
      99             :             void Set (float m11, float m12, float dx, float m21, float m22, float dy)
     100             :             {
     101             :                 eM11 = m11;
     102             :                 eM12 = m12;
     103             :                 eDx  = dx;
     104             :                 eM21 = m21;
     105             :                 eM22 = m22;
     106             :                 eDy  = dy;
     107             :             }
     108             : 
     109           0 :             void Set (XForm f)
     110             :             {
     111           0 :                 eM11 = f.eM11;
     112           0 :                 eM12 = f.eM12;
     113           0 :                 eM21 = f.eM21;
     114           0 :                 eM22 = f.eM22;
     115           0 :                 eDx  = f.eDx;
     116           0 :                 eDy  = f.eDy;
     117           0 :             }
     118             : 
     119             :             void Multiply (float m11, float m12, float dx, float m21, float m22, float dy)
     120             :             {
     121             :                 eM11 = eM11*m11 + eM12*m21;
     122             :                 eM12 = eM11*m12 + eM12*m22;
     123             :                 eM21 = eM21*m11 + eM22*m21;
     124             :                 eM22 = eM21*m12 + eM22*m22;
     125             :                 eDx *= eDx*m11  + eDy*m21 + dx;
     126             :                 eDy *= eDx*m12  + eDy*m22 + dy;
     127             :             }
     128             : 
     129           0 :             void Multiply (XForm f)
     130             :             {
     131           0 :                 eM11 = eM11*f.eM11 + eM12*f.eM21;
     132           0 :                 eM12 = eM11*f.eM12 + eM12*f.eM22;
     133           0 :                 eM21 = eM21*f.eM11 + eM22*f.eM21;
     134           0 :                 eM22 = eM21*f.eM12 + eM22*f.eM22;
     135           0 :                 eDx *= eDx*f.eM11  + eDy*f.eM21 + f.eDx;
     136           0 :                 eDy *= eDx*f.eM12  + eDy*f.eM22 + f.eDy;
     137           0 :             }
     138             : 
     139             : #ifdef OSL_BIGENDIAN
     140             : // little endian <-> big endian switch
     141             : static float GetSwapFloat( SvStream& rSt )
     142             : {
     143             :         float   fTmp;
     144             :         sal_Int8* pPtr = (sal_Int8*)&fTmp;
     145             :         rSt.ReadSChar( pPtr[3] );
     146             :         rSt.ReadSChar( pPtr[2] );
     147             :         rSt.ReadSChar( pPtr[1] );
     148             :         rSt.ReadSChar( pPtr[0] );
     149             :         return fTmp;
     150             : }
     151             : #endif
     152             : 
     153           0 :             friend SvStream& ReadXForm( SvStream& rIn, XForm& rXForm )
     154             :             {
     155             :                 if ( sizeof( float ) != 4 )
     156             :                 {
     157             :                     OSL_FAIL( "EnhWMFReader::sizeof( float ) != 4" );
     158             :                     rXForm = XForm();
     159             :                 }
     160             :                 else
     161             :                 {
     162             : #ifdef OSL_BIGENDIAN
     163             :                     rXForm.eM11 = GetSwapFloat( rIn );
     164             :                     rXForm.eM12 = GetSwapFloat( rIn );
     165             :                     rXForm.eM21 = GetSwapFloat( rIn );
     166             :                     rXForm.eM22 = GetSwapFloat( rIn );
     167             :                     rXForm.eDx = GetSwapFloat( rIn );
     168             :                     rXForm.eDy = GetSwapFloat( rIn );
     169             : #else
     170           0 :                     rIn.ReadFloat( rXForm.eM11 ).ReadFloat( rXForm.eM12 ).ReadFloat( rXForm.eM21 ).ReadFloat( rXForm.eM22 )
     171           0 :                        .ReadFloat( rXForm.eDx ).ReadFloat( rXForm.eDy );
     172             : #endif
     173             :                 }
     174           0 :                 return rIn;
     175             :             }
     176             :         };
     177             : 
     178             :         // EMF+
     179           0 :         typedef struct {
     180             :             XForm aWorldTransform;
     181             :             OutDevState aDevState;
     182           0 :         } EmfPlusGraphicState;
     183             : 
     184             :         typedef ::std::map<int,EmfPlusGraphicState> GraphicStateMap;
     185             : 
     186             :         class ImplRenderer : public virtual Renderer, protected CanvasGraphicHelper
     187             :         {
     188             :         public:
     189             :             ImplRenderer( const CanvasSharedPtr&    rCanvas,
     190             :                           const GDIMetaFile&        rMtf,
     191             :                           const Parameters&         rParms );
     192             : 
     193             :             virtual ~ImplRenderer();
     194             : 
     195             :             virtual bool                draw() const SAL_OVERRIDE;
     196             :             virtual bool                drawSubset( sal_Int32   nStartIndex,
     197             :                                                     sal_Int32   nEndIndex ) const SAL_OVERRIDE;
     198             :             virtual ::basegfx::B2DRange getSubsetArea( sal_Int32    nStartIndex,
     199             :                                                        sal_Int32    nEndIndex ) const SAL_OVERRIDE;
     200             : 
     201             : 
     202             :             // element of the Renderer's action vector. Need to be
     203             :             // public, since some functors need it, too.
     204           0 :             struct MtfAction
     205             :             {
     206           0 :                 MtfAction( const ActionSharedPtr&   rAction,
     207             :                            sal_Int32                nOrigIndex ) :
     208             :                     mpAction( rAction ),
     209           0 :                     mnOrigIndex( nOrigIndex )
     210             :                 {
     211           0 :                 }
     212             : 
     213             :                 ActionSharedPtr mpAction;
     214             :                 sal_Int32       mnOrigIndex;
     215             :             };
     216             : 
     217             :             // prefetched and prepared canvas actions
     218             :             // (externally not visible)
     219             :             typedef ::std::vector< MtfAction >      ActionVector;
     220             : 
     221             :             /* EMF+ */
     222             :             void ReadRectangle (SvStream& s, float& x, float& y, float &width, float& height, bool bCompressed = false);
     223             :             void ReadPoint (SvStream& s, float& x, float& y, sal_uInt32 flags);
     224             :             void MapToDevice (double &x, double &y);
     225             :             ::basegfx::B2DPoint Map (double ix, double iy);
     226             :             ::basegfx::B2DSize MapSize (double iwidth, double iheight);
     227             :             void GraphicStatePush (GraphicStateMap& map, sal_Int32 index, OutDevState& rState);
     228             :             void GraphicStatePop (GraphicStateMap& map, sal_Int32 index, OutDevState& rState);
     229             : 
     230             :         private:
     231             :             // default: disabled copy/assignment
     232             :             ImplRenderer(const ImplRenderer&);
     233             :             ImplRenderer& operator=( const ImplRenderer& );
     234             : 
     235             :             void updateClipping( const ::basegfx::B2DPolyPolygon&   rClipPoly,
     236             :                                  const ActionFactoryParameters&     rParms,
     237             :                                  bool                               bIntersect );
     238             : 
     239             :             void updateClipping( const ::Rectangle&                 rClipRect,
     240             :                                  const ActionFactoryParameters&     rParms,
     241             :                                  bool                               bIntersect );
     242             : 
     243             :             ::com::sun::star::uno::Reference<
     244             :                 ::com::sun::star::rendering::XCanvasFont > createFont( double&                         o_rFontRotation,
     245             :                                                                        const ::Font&                   rFont,
     246             :                                                                        const ActionFactoryParameters&  rParms ) const;
     247             :             bool createActions( GDIMetaFile&                    rMtf,
     248             :                                 const ActionFactoryParameters&  rParms,
     249             :                                 bool                            bSubsettableActions );
     250             :             bool createFillAndStroke( const ::basegfx::B2DPolyPolygon& rPolyPoly,
     251             :                                       const ActionFactoryParameters&   rParms );
     252             :             bool createFillAndStroke( const ::basegfx::B2DPolygon&   rPoly,
     253             :                                       const ActionFactoryParameters& rParms );
     254             :             void skipContent( GDIMetaFile& rMtf,
     255             :                               const char*  pCommentString,
     256             :                               sal_Int32&   io_rCurrActionIndex ) const;
     257             : 
     258             :             bool isActionContained( GDIMetaFile& rMtf,
     259             :                                     const char*  pCommentString,
     260             :                                     sal_uInt16       nType ) const;
     261             : 
     262             :             void createGradientAction( const ::PolyPolygon&           rPoly,
     263             :                                        const ::Gradient&              rGradient,
     264             :                                        const ActionFactoryParameters& rParms,
     265             :                                        bool                           bIsPolygonRectangle,
     266             :                                        bool                           bSubsettableActions );
     267             : 
     268             :             void createTextAction( const ::Point&                 rStartPoint,
     269             :                                    const OUString&                rString,
     270             :                                    int                            nIndex,
     271             :                                    int                            nLength,
     272             :                                    const sal_Int32*               pCharWidths,
     273             :                                    const ActionFactoryParameters& rParms,
     274             :                                    bool                           bSubsettable );
     275             : 
     276             :             bool getSubsetIndices( sal_Int32&                    io_rStartIndex,
     277             :                                    sal_Int32&                    io_rEndIndex,
     278             :                                    ActionVector::const_iterator& o_rRangeBegin,
     279             :                                    ActionVector::const_iterator& o_rRangeEnd ) const;
     280             : 
     281             :             void processObjectRecord(SvMemoryStream& rObjectStream, sal_uInt16 flags, sal_uInt32 dataSize, bool bUseWholeStream = false);
     282             : 
     283             :             /* EMF+ */
     284             :             void processEMFPlus( MetaCommentAction* pAct, const ActionFactoryParameters& rFactoryParms, OutDevState& rState, const CanvasSharedPtr& rCanvas );
     285             :             double setFont( sal_uInt8 objectId, const ActionFactoryParameters& rParms, OutDevState& rState );
     286             : 
     287             :             /// Render LineCap, like the start or end arrow of a polygon.
     288             :             /// @return how much we should shorten the original polygon.
     289             :             double EMFPPlusDrawLineCap(const ::basegfx::B2DPolygon& rPolygon, double fPolyLength,
     290             :                     const ::basegfx::B2DPolyPolygon& rLineCap, bool isFilled, bool bStart,
     291             :                     const com::sun::star::rendering::StrokeAttributes& rAttributes,
     292             :                     const ActionFactoryParameters& rParms, OutDevState& rState);
     293             : 
     294             :             void EMFPPlusDrawPolygon (const ::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, sal_uInt32 penIndex);
     295             :             void EMFPPlusFillPolygon (::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, bool isColor, sal_uInt32 brushIndexOrColor);
     296             : 
     297             :             ActionVector maActions;
     298             : 
     299             :             /* EMF+ */
     300             :             XForm           aBaseTransform;
     301             :             XForm           aWorldTransform;
     302             :             EMFPObject*     aObjects [256];
     303             :             float           fPageScale;
     304             :             sal_Int32       nOriginX;
     305             :             sal_Int32       nOriginY;
     306             :             sal_Int32       nHDPI;
     307             :             sal_Int32       nVDPI;
     308             :             /* EMF+ emf header info */
     309             :             sal_Int32       nFrameLeft;
     310             :             sal_Int32       nFrameTop;
     311             :             sal_Int32       nFrameRight;
     312             :             sal_Int32       nFrameBottom;
     313             :             sal_Int32       nPixX;
     314             :             sal_Int32       nPixY;
     315             :             sal_Int32       nMmX;
     316             :             sal_Int32       nMmY;
     317             :             /* multipart object data */
     318             :             bool            mbMultipart;
     319             :             sal_uInt16      mMFlags;
     320             :             SvMemoryStream  mMStream;
     321             :             /* emf+ graphic state stack */
     322             :             GraphicStateMap mGSStack;
     323             :             GraphicStateMap mGSContainerStack;
     324             :         };
     325             : 
     326             : 
     327             :         /// Common parameters when creating actions
     328             :         struct ActionFactoryParameters
     329             :         {
     330           0 :             ActionFactoryParameters( VectorOfOutDevStates&       rStates,
     331             :                                      const CanvasSharedPtr&      rCanvas,
     332             :                                      ::VirtualDevice&            rVDev,
     333             :                                      const Renderer::Parameters& rParms,
     334             :                                      sal_Int32&                  io_rCurrActionIndex ) :
     335             :                 mrStates(rStates),
     336             :                 mrCanvas(rCanvas),
     337             :                 mrVDev(rVDev),
     338             :                 mrParms(rParms),
     339           0 :                 mrCurrActionIndex(io_rCurrActionIndex)
     340           0 :             {}
     341             : 
     342             :             VectorOfOutDevStates&       mrStates;
     343             :             const CanvasSharedPtr&      mrCanvas;
     344             :             ::VirtualDevice&            mrVDev;
     345             :             const Renderer::Parameters& mrParms;
     346             :             sal_Int32&                  mrCurrActionIndex;
     347             :         };
     348             :     }
     349             : }
     350             : 
     351             : #endif /* _CPPCANVAS_IMPLRENDERER_HXX */
     352             : 
     353             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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