cppcanvas/source/mtfrenderer/bitmapaction.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.
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   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
  21 #include <com/sun/star/rendering/XBitmap.hpp>
  22 #include <com/sun/star/rendering/RepaintResult.hpp>
  23 #include <com/sun/star/rendering/XCachedPrimitive.hpp>
  24 #include <vcl/bitmapex.hxx>
  25 #include <tools/gen.hxx>
  26 #include <vcl/canvastools.hxx>
  27 #include <canvas/canvastools.hxx>
  28 #include <basegfx/matrix/b2dhommatrix.hxx>
  29 #include <basegfx/vector/b2dsize.hxx>
  30 #include <basegfx/point/b2dpoint.hxx>
  31 #include <basegfx/range/b2drange.hxx>
  32 #include <basegfx/tools/canvastools.hxx>
  33 #include <boost/utility.hpp>
  34 #include "cachedprimitivebase.hxx"
  35 #include "bitmapaction.hxx"
  36 #include "outdevstate.hxx"
  37 #include "mtftools.hxx"
  38 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  39
  40
  41 using namespace ::com::sun::star;
  42
  43 namespace cppcanvas
  44 {
  45     namespace internal
  46     {
  47         namespace
  48         {
  49
  50             class BitmapAction : public CachedPrimitiveBase
  51             {
  52             public:
  53                 BitmapAction( const ::BitmapEx&,
  54                               const ::basegfx::B2DPoint& rDstPoint,
  55                               const CanvasSharedPtr&,
  56                               const OutDevState& );
  57                 BitmapAction( const ::BitmapEx&,
  58                               const ::basegfx::B2DPoint&  rDstPoint,
  59                               const ::basegfx::B2DVector& rDstSize,
  60                               const CanvasSharedPtr&,
  61                               const OutDevState& );
  62
  63                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
  64                                            const Subset&                  rSubset ) const SAL_OVERRIDE;
  65
  66                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const SAL_OVERRIDE;
  67                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
  68                                                        const Subset&                    rSubset ) const SAL_OVERRIDE;
  69
  70                 virtual sal_Int32 getActionCount() const SAL_OVERRIDE;
  71
  72             private:
  73                 using Action::render;
  74                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
  75                                               const ::basegfx::B2DHomMatrix&                 rTransformation ) const SAL_OVERRIDE;
  76
  77                 uno::Reference< rendering::XBitmap >                    mxBitmap;
  78                 CanvasSharedPtr                                         mpCanvas;
  79                 rendering::RenderState                                  maState;
  80             };
  81
  82
  83             BitmapAction::BitmapAction( const ::BitmapEx&          rBmpEx,
  84                                         const ::basegfx::B2DPoint& rDstPoint,
  85                                         const CanvasSharedPtr&     rCanvas,
  86                                         const OutDevState&         rState ) :
  87                 CachedPrimitiveBase( rCanvas, true ),
  88                 mxBitmap( vcl::unotools::xBitmapFromBitmapEx( rCanvas->getUNOCanvas()->getDevice(),
  89                                                                 rBmpEx ) ),
  90                 mpCanvas( rCanvas ),
  91                 maState()
  92             {
  93                 tools::initRenderState(maState,rState);
  94
  95                 // Setup transformation such that the next render call is
  96                 // moved rPoint away.
  97                 const basegfx::B2DHomMatrix aLocalTransformation(basegfx::tools::createTranslateB2DHomMatrix(rDstPoint));
  98                 ::canvas::tools::appendToRenderState( maState,
  99                                                       aLocalTransformation );
 100
 101                 // correct clip (which is relative to original transform)
 102                 tools::modifyClip( maState,
 103                                    rState,
 104                                    rCanvas,
 105                                    rDstPoint,
 106                                    NULL,
 107                                    NULL );
 108             }
 109
 110             BitmapAction::BitmapAction( const ::BitmapEx&           rBmpEx,
 111                                         const ::basegfx::B2DPoint&  rDstPoint,
 112                                         const ::basegfx::B2DVector& rDstSize,
 113                                         const CanvasSharedPtr&      rCanvas,
 114                                         const OutDevState&          rState      ) :
 115                 CachedPrimitiveBase( rCanvas, true ),
 116                 mxBitmap( vcl::unotools::xBitmapFromBitmapEx( rCanvas->getUNOCanvas()->getDevice(),
 117                                                                 rBmpEx ) ),
 118                 mpCanvas( rCanvas ),
 119                 maState()
 120             {
 121                 tools::initRenderState(maState,rState);
 122
 123                 // Setup transformation such that the next render call is
 124                 // moved rPoint away, and scaled according to the ratio
 125                 // given by src and dst size.
 126                 const ::Size aBmpSize( rBmpEx.GetSizePixel() );
 127
 128                 const ::basegfx::B2DVector aScale( rDstSize.getX() / aBmpSize.Width(),
 129                                                    rDstSize.getY() / aBmpSize.Height() );
 130                 const basegfx::B2DHomMatrix aLocalTransformation(basegfx::tools::createScaleTranslateB2DHomMatrix(
 131                     aScale, rDstPoint));
 132                 ::canvas::tools::appendToRenderState( maState, aLocalTransformation );
 133
 134                 // correct clip (which is relative to original transform)
 135                 tools::modifyClip( maState,
 136                                    rState,
 137                                    rCanvas,
 138                                    rDstPoint,
 139                                    &aScale,
 140                                    NULL );
 141             }
 142
 143             bool BitmapAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 144                                                 const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 145             {
 146                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::BitmapAction::renderPrimitive()" );
 147                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::BitmapAction: 0x" << std::hex << this );
 148
 149                 rendering::RenderState aLocalState( maState );
 150                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 151
 152                 rCachedPrimitive = mpCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
 153                                                                          mpCanvas->getViewState(),
 154                                                                          aLocalState );
 155
 156                 return true;
 157             }
 158
 159             bool BitmapAction::renderSubset( const ::basegfx::B2DHomMatrix&   rTransformation,
 160                                              const Subset&                    rSubset ) const
 161             {
 162                 // bitmap only contains a single action, fail if subset
 163                 // requests different range
 164                 if( rSubset.mnSubsetBegin != 0 ||
 165                     rSubset.mnSubsetEnd != 1 )
 166                     return false;
 167
 168                 return CachedPrimitiveBase::render( rTransformation );
 169             }
 170
 171             ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const
 172             {
 173                 rendering::RenderState aLocalState( maState );
 174                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 175
 176                 const geometry::IntegerSize2D aSize( mxBitmap->getSize() );
 177
 178                 return tools::calcDevicePixelBounds( ::basegfx::B2DRange( 0,0,
 179                                                                           aSize.Width,
 180                                                                           aSize.Height ),
 181                                                      mpCanvas->getViewState(),
 182                                                      aLocalState );
 183             }
 184
 185             ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation,
 186                                                          const Subset&                  rSubset ) const
 187             {
 188                 // bitmap only contains a single action, empty bounds
 189                 // if subset requests different range
 190                 if( rSubset.mnSubsetBegin != 0 ||
 191                     rSubset.mnSubsetEnd != 1 )
 192                     return ::basegfx::B2DRange();
 193
 194                 return getBounds( rTransformation );
 195             }
 196
 197             sal_Int32 BitmapAction::getActionCount() const
 198             {
 199                 return 1;
 200             }
 201         }
 202
 203         ActionSharedPtr BitmapActionFactory::createBitmapAction( const ::BitmapEx&          rBmpEx,
 204                                                                  const ::basegfx::B2DPoint& rDstPoint,
 205                                                                  const CanvasSharedPtr&     rCanvas,
 206                                                                  const OutDevState&         rState )
 207         {
 208             return ActionSharedPtr( new BitmapAction(rBmpEx,
 209                                                      rDstPoint,
 210                                                      rCanvas,
 211                                                      rState ) );
 212         }
 213
 214         ActionSharedPtr BitmapActionFactory::createBitmapAction( const ::BitmapEx&           rBmpEx,
 215                                                                  const ::basegfx::B2DPoint&  rDstPoint,
 216                                                                  const ::basegfx::B2DVector& rDstSize,
 217                                                                  const CanvasSharedPtr&      rCanvas,
 218                                                                  const OutDevState&          rState )
 219         {
 220             return ActionSharedPtr( new BitmapAction(rBmpEx,
 221                                                      rDstPoint,
 222                                                      rDstSize,
 223                                                      rCanvas,
 224                                                      rState ) );
 225         }
 226     }
 227 }
 228
 229 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */