cppcanvas/source/mtfrenderer/pointaction.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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  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
  21 #include <com/sun/star/rendering/XCanvas.hpp>
  22
  23 #include <sal/types.h>
  24 #include <sal/log.hxx>
  25 #include <utility>
  26 #include <vcl/canvastools.hxx>
  27
  28 #include <basegfx/range/b2drange.hxx>
  29 #include <basegfx/point/b2dpoint.hxx>
  30 #include <basegfx/utils/canvastools.hxx>
  31 #include <canvas/canvastools.hxx>
  32
  33 #include "pointaction.hxx"
  34 #include <outdevstate.hxx>
  35 #include <cppcanvas/canvas.hxx>
  36 #include "mtftools.hxx"
  37
  38
  39 using namespace ::com::sun::star;
  40
  41 namespace cppcanvas::internal
  42 {
  43         namespace
  44         {
  45             class PointAction : public Action
  46             {
  47             public:
  48                 PointAction( const ::basegfx::B2DPoint&,
  49                              CanvasSharedPtr,
  50                              const OutDevState& );
  51                 PointAction( const ::basegfx::B2DPoint&,
  52                              const CanvasSharedPtr&,
  53                              const OutDevState&,
  54                              const ::Color&     );
  55
  56                 PointAction(const PointAction&) = delete;
  57                 const PointAction& operator=(const PointAction&) = delete;
  58
  59                 virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const override;
  60                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
  61                                            const Subset&                  rSubset ) const override;
  62
  63                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const override;
  64                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
  65                                                        const Subset&                    rSubset ) const override;
  66
  67                 virtual sal_Int32 getActionCount() const override;
  68
  69             private:
  70                 ::basegfx::B2DPoint                         maPoint;
  71                 CanvasSharedPtr                             mpCanvas;
  72                 css::rendering::RenderState                 maState;
  73             };
  74
  75             PointAction::PointAction( const ::basegfx::B2DPoint& rPoint,
  76                                       CanvasSharedPtr            xCanvas,
  77                                       const OutDevState&         rState ) :
  78                 maPoint( rPoint ),
  79                 mpCanvas(std::move( xCanvas ))
  80             {
  81                 tools::initRenderState(maState,rState);
  82                 maState.DeviceColor = rState.lineColor;
  83             }
  84
  85             PointAction::PointAction( const ::basegfx::B2DPoint& rPoint,
  86                                       const CanvasSharedPtr&     rCanvas,
  87                                       const OutDevState&         rState,
  88                                       const ::Color&             rAltColor ) :
  89                 maPoint( rPoint ),
  90                 mpCanvas( rCanvas )
  91             {
  92                 tools::initRenderState(maState,rState);
  93                 maState.DeviceColor = vcl::unotools::colorToDoubleSequence(
  94                     rAltColor,
  95                     rCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace() );
  96             }
  97
  98             bool PointAction::render( const ::basegfx::B2DHomMatrix& rTransformation ) const
  99             {
 100                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PointAction::render()" );
 101                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PointAction: 0x" << std::hex << this );
 102
 103                 rendering::RenderState aLocalState( maState );
 104                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 105
 106                 mpCanvas->getUNOCanvas()->drawPoint( ::basegfx::unotools::point2DFromB2DPoint(maPoint),
 107                                                      mpCanvas->getViewState(),
 108                                                      aLocalState );
 109
 110                 return true;
 111             }
 112
 113             bool PointAction::renderSubset( const ::basegfx::B2DHomMatrix&    rTransformation,
 114                                             const Subset&                     rSubset ) const
 115             {
 116                 // point only contains a single action, fail if subset
 117                 // requests different range
 118                 if( rSubset.mnSubsetBegin != 0 ||
 119                     rSubset.mnSubsetEnd != 1 )
 120                     return false;
 121
 122                 return render( rTransformation );
 123             }
 124
 125             ::basegfx::B2DRange PointAction::getBounds( const ::basegfx::B2DHomMatrix&  rTransformation ) const
 126             {
 127                 rendering::RenderState aLocalState( maState );
 128                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 129
 130                 return tools::calcDevicePixelBounds( ::basegfx::B2DRange( maPoint.getX()-1,
 131                                                                           maPoint.getY()-1,
 132                                                                           maPoint.getX()+1,
 133                                                                           maPoint.getY()+1 ),
 134                                                      mpCanvas->getViewState(),
 135                                                      aLocalState );
 136             }
 137
 138             ::basegfx::B2DRange PointAction::getBounds( const ::basegfx::B2DHomMatrix&  rTransformation,
 139                                                         const Subset&                   rSubset ) const
 140             {
 141                 // point only contains a single action, empty bounds
 142                 // if subset requests different range
 143                 if( rSubset.mnSubsetBegin != 0 ||
 144                     rSubset.mnSubsetEnd != 1 )
 145                     return ::basegfx::B2DRange();
 146
 147                 return getBounds( rTransformation );
 148             }
 149
 150             sal_Int32 PointAction::getActionCount() const
 151             {
 152                 return 1;
 153             }
 154         }
 155
 156         std::shared_ptr<Action> PointActionFactory::createPointAction( const ::basegfx::B2DPoint& rPoint,
 157                                                                const CanvasSharedPtr&     rCanvas,
 158                                                                const OutDevState&         rState )
 159         {
 160             return std::make_shared<PointAction>( rPoint, rCanvas, rState );
 161         }
 162
 163         std::shared_ptr<Action> PointActionFactory::createPointAction( const ::basegfx::B2DPoint& rPoint,
 164                                                                const CanvasSharedPtr&     rCanvas,
 165                                                                const OutDevState&         rState,
 166                                                                const ::Color&             rColor    )
 167         {
 168             return std::make_shared<PointAction>( rPoint, rCanvas, rState, rColor );
 169         }
 170 }
 171
 172 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */